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469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

FIGURE 1–2: Typical Relay Connection Diagram

BEARIN

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PHASE

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AMBI

806554A2.CDR

Содержание Masoneilan 469 Series

Страница 1: ...E Grid Solutions 650 Markland Street Markham Ontario Canada L6C 0M1 TELEPHONE Worldwide 1 905 927 7070 Europe Middle East Africa 34 94 485 88 54 North America toll free 1 800 547 8629 FAX 1 905 927 5098 E MAIL Worldwide multilin tech ge com Europe multilin tech euro ge com HOME PAGE Internet http www gegridsolutions com multilin 1601 0122 AJ ...

Страница 2: ...the property of GE Multilin Inc This documentation is furnished on license and may not be reproduced in whole or in part without the permission of GE Multilin The content of this manual is for informational use only and is subject to change without notice Part numbers contained in this manual are subject to change without notice and should therefore be verified by GE Multilin before ordering Part ...

Страница 3: ... injury Note Indicates a hazardous situation which if not avoided could result in death or serious injury Note Indicates a hazardous situation which if not avoided could result in minor or moderate injury Note Indicates practices not related to personal injury NOTE Indicates general information and practices including operational information and practices that are not related to personal injury ...

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Страница 5: ...E 1 17 DESCRIPTION 1 17 INSTRUMENT TRANSFORMER DATA 1 25 MOTOR PROTECTION 1 25 S2 SYSTEM SETTINGS 1 30 S3 DIGITAL INPUTS SETTINGS 1 32 S5 THERMAL MODEL 1 33 S6 CURRENT ELEMENTS 1 33 S7 MOTOR STARTING 1 35 S8 RTD TEMPERATURE 1 35 OTHER SETTINGS 1 36 INSTALLATION 1 38 TESTING 1 38 2 INTRODUCTION OVERVIEW 2 1 DESCRIPTION 2 1 ORDERING INFORMATION 2 4 ORDER CODES 2 5 EXAMPLE ORDER CODES 2 5 ACCESSORIES...

Страница 6: ...3 24 DIELECTRIC STRENGTH 3 25 2 SPEED MOTOR WIRING 3 27 4 INTERFACES FACEPLATE INTERFACE 4 1 DESCRIPTION 4 1 DISPLAY 4 1 LED INDICATORS 4 2 RS232 PORT 4 3 KEYPAD 4 4 SETTINGS ENTRY 4 6 DIAGNOSTIC MESSAGES 4 7 SELF TEST WARNINGS 4 8 FLASH MESSAGES 4 9 ENERVISTA 469 SETUP SOFTWARE INTERFACE 4 10 OVERVIEW 4 10 HARDWARE 4 11 INSTALLING THE ENERVISTA 469 SETUP SOFTWARE 4 13 CONNECTING ENERVISTA 469 SET...

Страница 7: ...COMMUNICATIONS 5 11 REAL TIME CLOCK 5 13 DEFAULT MESSAGES 5 14 MESSAGE SCRATCHPAD 5 15 CLEAR DATA 5 16 INSTALLATION 5 16 S2 SYSTEM SETUP 5 18 CURRENT SENSING 5 18 VOLTAGE SENSING 5 20 POWER SYSTEM 5 20 COMMUNICATIONS CONTROL 5 21 REDUCED VOLTAGE 5 22 PRESET MOTOR VALUES 5 24 S3 DIGITAL INPUTS 5 26 DESCRIPTION 5 26 STARTER STATUS 5 27 ASSIGNABLE INPUTS 1 4 5 27 S4 OUTPUT RELAYS 5 36 DESCRIPTION 5 3...

Страница 8: ... UNDERPOWER 5 85 REVERSE POWER 5 86 TORQUE SETUP 5 86 OVERTORQUE 5 87 S11 MONITORING 5 88 TRIP COUNTER 5 88 STARTER FAILURE 5 88 DEMAND 5 89 PULSE OUTPUT 5 91 LOSS OF COMMUNICATIONS 5 92 S12 ANALOG INPUTS OUTPUTS 5 94 ANALOG OUTPUTS 1 TO 4 5 94 ANALOG INPUTS 1 TO 4 5 96 ANALOG INPUT DIFF 1 2 5 98 ANALOG INPUT DIFF 3 4 5 99 S13 469 TESTING 5 101 SIMULATION MODE 5 101 PRE FAULT SETUP 5 102 FAULT SET...

Страница 9: ...S 6 30 GENERAL COUNTERS 6 31 TIMERS 6 32 A5 EVENT RECORDER 6 33 EVENT 01 TO EVENT 256 6 33 A6 PRODUCT INFO 6 36 469 MODEL INFORMATION 6 36 CALIBRATION INFORMATION 6 36 DIAGNOSTICS 6 37 DIAGNOSTIC MESSAGES 6 37 FLASH MESSAGES 6 38 7 TESTING OVERVIEW 7 1 TEST SETUP 7 1 HARDWARE FUNCTIONAL TESTING 7 3 PHASE CURRENT ACCURACY TEST 7 3 VOLTAGE INPUT ACCURACY TEST 7 3 GROUND AND DIFFERENTIAL ACCURACY TES...

Страница 10: ...TANTS 8 4 SELECTION OF COOL TIME CONSTANTS 8 4 CURRENT TRANSFORMERS 8 6 GROUND FAULT CTS FOR 50 0 025 A CT 8 6 GROUND FAULT CTS FOR 5 A SECONDARY CT 8 8 PHASE CTS 8 8 EU DECLARATION OF CONFORMITY 8 10 EU DECLARATION OF CONFORMITY 8 10 CHANGE NOTES 8 11 REVISION HISTORY 8 11 CHANGES TO THE 469 MANUAL 8 11 GE WARRANTY 8 16 WARRANTY 8 16 I INDEX ...

Страница 11: ...ment damage and or downtime Note 1 1 2 Inspection Checklist Open the relay packaging and inspect the unit for physical damage View the rear nameplate and verify that the correct model has been ordered Ensure that the following items are included Instruction Manual GE EnerVista CD includes software and relay documentation mounting screws For product information instruction manual updates and the la...

Страница 12: ...onsult your local sales representative or the factory Comments about new features or modifications for your specific requirements are welcome and encouraged settings and actual values are indicated as follows in the manual A3 LEARNED DATA AVERAGE MOTOR LOAD AVERAGE MOTOR LOAD LEARNED This path representation illustrates the location of an specific actual value or settings with regards to its previ...

Страница 13: ...f digital inputs c Last trip information including values such as cause of last trip time and date of trip motor speed and load at the time of trip pre trip temperature measure ments pre trip analog inputs values and pre trip instantaneous values of power system quantities d Active alarms e Relay date and time f Present blocking conditions g General system status indication including the status of...

Страница 14: ...n including model number firmware version additional product information and calibration dates 8 Oscillography downloading tool Alarm trip conditions diagnostics and system flash messages are grouped under Target Messages Press the MENU key to access the header of each menu which will be displayed in the following sequence To access settings Press the MENU key until the display shows the header of...

Страница 15: ...lues page headers Actual values page headers look as follows To enter a given actual values page Press the MESSAGE or ENTER key Press the MESSAGE or MESSAGE keys to scroll through sub page headers until the required message is reached The end of a page is indicated by the message END OF PAGE The beginning of a page is indicated by the message TOP OF PAGE Similarly to access additional sub pages Pr...

Страница 16: ...ndicates that additional sub pages are available and can be accessed by pressing the MESSAGE or ENTER key Press MESSAGE or ENTER while at the Demand Metering sub page heading to display the following Press MESSAGE key to return to the Demand Metering sub page heading Press the MESSAGE key to display the next actual value of this sub page Actual values and settings messages always have a colon sepa...

Страница 17: ...sub page Press the MESSAGE key to reverse the process described above and return the display to the previous level Press the MESSAGE key twice to return to the A3 LEARNED DATA page header 1 2 2 Panel Keying Example The following figure gives a specific example of how the keypad is used to navigate through the menu structure Specific locations are referred to throughout this manual by using a path ...

Страница 18: ...D ACTUAL VALUES Press the MESSAGE or ENTER key ACTUAL VALUES A1 STATUS Press the MESSAGE key ACTUAL VALUES A2 METERING DATA Press the MESSAGE key ACTUAL VALUES A3 LEARNED DATA MESSAGE MOTOR STARTING MESSAGE LEARNED ACCELERATION TIME 0 0 s MESSAGE LEARNED STARTING CURRENT 0 A ...

Страница 19: ...atibility or lack of coordination with other previously saved settings may cause unwanted operations Now that we have become more familiar with maneuvering through messages we can learn how to edit the values used by all settings classes Hardware and passcode security features are designed to provide protection against unauthorized settings changes Since we will be programming new settings using t...

Страница 20: ...r the application 1 3 2 The HELP Key Pressing the HELP key displays context sensitive information about settings such as the range of values and the method of changing the settings Help messages will automatically scroll through all messages currently appropriate 1 3 3 Numerical Settings Each numerical settings has its own minimum maximum and step value These parameters define the acceptable setti...

Страница 21: ...Open Delta Motor Nameplate Voltage 13800 V VT Ratio 115 1 To set the phase CT primary rating modify the S2 SYSTEM SETUP CURRENT SENSING PHASE CT PRIMARY settings as shown below Press the MENU key until the relay displays the Sepoints menu header To set the phase Motor Full Load Amps FLA modify the S2 SYSTEM SETUP CURRENT SENSING MOTOR FULL LOAD AMPS FLA settings as shown below Press the MENU key u...

Страница 22: ...ESSAGE SETPOINTS S2 SYSTEM SETUP Press MESSAGE or ENTER CURRENT SENSING Press MESSAGE or ENTER PHASE CT PRIMARY 600 A Press MESSAGE MOTOR FULL LOAD AMPS FLA OFF Press the VALUE keys until 318 A is displayed or enter the value directly via the numeric keypad MOTOR FULL LOAD AMPS FLA 318 A Press the ENTER key to store the settings NEW SETPOINT HAS BEEN STORED ...

Страница 23: ...UP Press MESSAGE SETPOINTS S2 SYSTEM SETUP Press MESSAGE or ENTER CURRENT SENSING Press MESSAGE or ENTER PHASE CT PRIMARY 600 A Press MESSAGE MOTOR FULL LOAD AMPS FLA 318 A Press MESSAGE GROUND CT 50 0 025 Press the VALUE keys until 5 A Secondary is displayed GROUND CT 5 A Secondary Press the ENTER key to store the settings NEW SETPOINT HAS BEEN STORED Press MESSAGE GROUND CT PRIMARY 100 A Press t...

Страница 24: ...SAGE SETPOINTS S2 SYSTEM SETUP Press MESSAGE or ENTER CURRENT SENSING Press MESSAGE VOLTAGE SENSING Press MESSAGE or ENTER VT CONNECTION TYPE None Press the VALUE keys until Open Delta is displayed VT CONNECTION TYPE Open Delta Press the ENTER key to store the settings NEW SETPOINT HAS BEEN STORED Press MESSAGE ENABLE SINGLE VT OPERATION OFF Press MESSAGE VOLTAGE TRANSFORMER RATIO 35 00 1 Press th...

Страница 25: ...action will momentarily flash on the display 1 3 6 Text Settings Text settings have data values which are fixed in length but user defined in character They may be composed of uppercase letters lowercase letters numerals and a selection of special characters The editing and storing of a text value is accomplished using the decimal VALUE and ENTER keys For example Move to message S3 DIGITAL INPUTS ...

Страница 26: ...er to a t in the same manner Continue entering characters in this way until all characters of the text Stn Monitor are entered Note that a space is selected like a character If a character is entered incorrectly press the decimal key repeatedly until the cursor returns to the position of the error Re enter the character as required Once complete press the ENTER key to remove the solid cursor and v...

Страница 27: ...dress all issues relating to your specific application It is recommended that your local protection engineer determine the settings for your motor protective relaying application Refer to following figures for schematic diagrams related to this example Important points to keep in mind before developing settings for any multifunction numerical device like the 469 Motor Management Relay Gather syste...

Страница 28: ...ing process particularly on reduced voltage start applications Define if the 469 will be applied a multi speed applications Define if the relay will be used to monitor the status of the starter or breaker It is strongly recommended that the 469 be always programmed to monitor the status of the disconnecting device by means of a dry contact connected to one of the digital inputs of the relay Use an...

Страница 29: ...To begin simply power on the unit and follow the instructions in this tutorial Assume the following system characteristics and that the 469 settings are unaltered from their factory default values Refer to the following figures for schematics related to this application example ...

Страница 30: ...ING 2 36 32 34 35 33 30 31 29 STATOR STATOR STATOR MOTOR BEARING 1 PHASE C 2 PHASE C 1 PHASE B 2 20 24 26 27 25 22 23 21 16 18 19 17 15 14 13 STATOR STATOR STATOR PHASE B 1 PHASE A 2 PHASE A 1 5 9 11 12 10 7 8 6 1 3 4 2 Comp Shld Comp Shld Shld Comp Comp Shld Shld Comp Comp Shld Shld Comp Comp Shld Shld Comp AMBIENT MOTOR 806554A2 CDR ...

Страница 31: ...CHAPTER 1 GETTING STARTED 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL 1 21 FIGURE 1 3 Typical Control Diagram 806552A2 CDR COMMON ...

Страница 32: ...1 22 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 1 GETTING STARTED FIGURE 1 4 Typical Breaker Control Diagram 806551A1 CDR ...

Страница 33: ...TRUCTION MANUAL 1 23 FIGURE 1 5 Typical Relay Control Diagram Power System Data a System 3Φ 4 wire b Frequency 60 Hz c Line voltage 600 V Motor Data As per the following motor data sheet information FIGURE 1 6 Motor Data Sheet Information 806555A2 CDR COMMON ...

Страница 34: ...a 52b contact only Only current metering is required Serial communication remote start from RTU Alarm after 100 s delay from station monitor This is normally used to signal the remote center when someone has gained access to the substation Contact Outputs Trip and close to breaker control circuit Trip and Auxiliary2 relays Relay failure alarm to RTU self test warning relay no programming required ...

Страница 35: ...ry Since the FLC is 347 5A a 350 5 or 400 5 CT may be chosen 400 5 is a standard available size and so would probably be selected Ground CT For high resistive grounded systems sensitive ground detection is possible with the 50 0 025 CT Use a 1 A or 5 A secondary CT on solidly grounded or low resistive grounded systems where the fault current is much higher If a residual connection is chosen pickup...

Страница 36: ...TION MANUAL CHAPTER 1 GETTING STARTED Overload Curve Select the standard overload curve to be just below the cold thermal limit to give maximum process uptime without compromising protection The best fitting curve is curve 7 see figure below ...

Страница 37: ...ESSER TIME CURRENT CHARACTERISTIC PAPER GE ORDER GES10083 THIS DRAWING IS PROPRIETARY INFORMATION DRAWN BY DATE ENG APP DATE MFG APP DATE SCALE DWG SIZE B DWG No PART No REV REV DATE ECO DWN APP DESCRIPTION A4 06 98 469 096 469 202 BA JN GE ORDER NUMBER ADDED 469 Motor Management Relay STANDARD OVERLOAD CURVES N A A5 JA 09 20 96 X X 1 1 806804A5 CDR TEL 905 294 6222 FAX 905 201 2098 INT http www g...

Страница 38: ...escribed in details in Chapter 5 Thermal Model A setting of 10 for the unbalance alarm with a delay of 10 seconds would be appropriate and the trip can be set to 25 with a delay of 5 seconds Stopped and Running Cool Times The motor manufacturer usually supplies this information as either cooling times or cooling time constants not provided in the data sheet issued with this motor Since RTDs are pr...

Страница 39: ...rer Unbalance bias of thermal capacity Enable the Unbalance Bias of Thermal Capacity so that the heating effect of unbalance currents is added to the Thermal Capacity Used Unbalance bias K factor The K value is used to calculate the contribution of the negative sequence current flowing in the rotor due to unbalance It is defined as EQ 1 1 where Rr2 rotor negative sequence resistance Rr1 rotor posi...

Страница 40: ...set to 90 C 40 C or 130 C RTD BIAS MAXIMUM This settings is set to the rating of the insulation or slightly less A class F insulation is used in this motor which is rated at 155 C so the setting should be 155 FIGURE 1 9 RTD Bias Example 1 You should now be familiar with maneuvering through and editing settings messages As such we will now limit our discussion to just the values that must be progra...

Страница 41: ...urchased There is more flexibility with regards to Ground CT inputs as well as VT inputs where nominal values are not required ahead of time before the relay is ordered therefore more settings are needed to set the relay for measurements Make the following change in the S2 SYSTEM SETUP POWER SYSTEM settings page to reflect the power system NOMINAL SYSTEM FREQUENCY 60 Hz SYSTEM PHASE SEQUENCE ABC T...

Страница 42: ... the status change of dry contacts connected to the digital input terminals Use the following procedure to set these functions Change the default names to meaningful values so they can be easily identified either via the LCD or when reviewing event reports Identify their asserted logic Define the functionality of the digital inputs All the other assignable input functions are pre defined and when ...

Страница 43: ...OLD SAFE STALL RATIO 0 89 ENABLE RTD BIASING Yes RTD BIAS MINIMUM 40 C ambient temperature RTD BIAS CENTER POINT 130 C center value RTD BIAS MAXIMUM 155 C maximum value THERMAL CAPACITY ALARM Unlatched recommended for early warning to take corrective actions and prevent the interruption of the process ASSIGN ALARM RELAYS Alarm the Alarm contact could be use for local indication or to send a local ...

Страница 44: ...following features they must be left Off OVERLOAD ALARM Off MECHANICAL JAM Off UNDERCURRENT Off PHASE DIFFERENTIAL Off For the Ground Fault element enter the following values in the S6 CURRENT ELEMENTS GROUND FAULT page Press the MESSAGE key after each settings is entered to move to the next message GROUND FAULT OVERREACH FILETER Off no filtering of DC component is required refer to Ground Fault o...

Страница 45: ...T 13 s as shown in the acceleration curves at 100 voltage For the Start Inhibit element enter the following values in the S7 MOTOR STARTING START INHIBIT page Press the MESSAGE key after each settings is completed to move to the next message START INHIBIT BLOCK On TC USED MARGIN 25 With these settings the 469 relay prevents motor starting if there is insufficient thermal capacity for a successful ...

Страница 46: ... RTD 1 TRIP TEMPERATURE 155 C The settings for the other RTDs are entered in similar fashion Refer to S8 RTD Temperature on page 5 72 for additional settings and additional information on RTD monitoring 1 4 10 Other Settings Undervoltage Protection In addition to the settings illustrated above there will be cases in motor applications where additional settings will be required to monitor other sys...

Страница 47: ...ge element enter the following values in the S9 VOLTAGE ELEMENTS UNDERVOLTAGE settings page Press the ENTER key to save and then the MESSAGE key after each settings is completed to move to the next message U V ACTIVE ONLY IF BUS ENERGIZED Yes UNDERVOLTAGE ALARM Unlatched ASSIGN ALARM RELAYS Alarm UNDERVOLTAGE ALARM PICKUP 0 9 x RATED STARTING U V ALARM PICKUP 0 9 x RATED UNDERVOLTAGE ALARM DELAY 0...

Страница 48: ... Extensive commissioning tests are available in Chapter 7 Tables for recording required settings are available in Microsoft Excel format from the GE Grid Solutions website at http www gegridsolutions com The website also contains additional technical papers and FAQs relevant to the 469 Motor Management Relay ...

Страница 49: ...designed for the protection and management of medium and large horsepower motors and driven equipment The 469 is equipped with six 6 output relays for trips alarms and start blocks Motor protection fault diagnostics power metering and RTU functions are integrated into one economical drawout package The single line diagram below illustrates the 469 functionality using ANSI American National Standar...

Страница 50: ... cooling In addition to the 15 standard overload curves there is a custom curve feature and a curve specifically designed for the starting of high inertia loads when the acceleration time exceeds the safe stall time A second overload curve is provided for two speed motors Ground faults or earth leakage as low as 0 25 A may be detected using the GE Grid Solutions 50 0 025 Ground CT CT inputs for ph...

Страница 51: ...ese features enable the operator to pinpoint a problem quickly and with certainty Power metering included with the 469 as a standard feature The table below outlines the metered parameters available either through the front panel or communications ports 51 Overload 86 Overload Lockout 66 Starts Hour Time Between Starts Restart Block Anti Backspin Timer 50 Short Circuit Short Circuit Backup Mechani...

Страница 52: ...power kvar demand kvar consumption generation Frequency Power factor RTD Speed in RPM with a key phasor input User programmable analog inputs ADDITIONAL FEATURES Drawout case for ease of maintenance testing Reduced voltage starting control for single transition Trip coil supervision Flash memory for easy firmware updates 2 1 2 Ordering Information All 469 features are standard there are no options...

Страница 53: ...l SR 19 2 Panel Dual cutout 19 inch panel SCI Module RS232 to RS485 converter box designed for harsh industrial environments Phase CT 50 75 100 150 200 250 300 350 400 500 600 750 1000 HGF3 HGF5 HGF8 For sensitive ground detection on high resistance grounded systems 469 1 inch Collar For shallow switchgear reduces the depth of the relay by 1 3 8 inches 469 3 inch Collar For shallow switchgear redu...

Страница 54: ...t 80 rated current 2 seconds at 40 rated current continuous at 3 rated current DIGITAL INPUTS Inputs 9 opto isolated inputs External switch dry contact 400 Ω or open collector NPN transistor from sensor 6 mA sinking from internal 4 KΩ pull up at 24 V DC with Vce 4 V DC See Digital Inputs on page 2 11 for additional specifications GROUND CURRENT INPUTS CT primary 1 to 5000 A CT secondary 1 A or 5 A...

Страница 55: ...pe No sensor 1000 Ω Short low alarm 50 C TRIP COIL SUPERVISION Applicable voltage 20 to 300 V DC V AC Trickle current 2 to 5 mA VOLTAGE INPUTS VT ratio 1 00 to 300 00 1 in steps of 0 01 VT secondary 273 V AC full scale Conversion range 0 05 to 1 00 full scale Nominal frequency 20 to 70 Hz Frequency range 20 to 120 Hz Accuracy 0 5 of full scale Max continuous 280 V AC Burden 500 kΩ Sensor supply 24...

Страница 56: ...up Dropout when current falls below overload pickup Time delay 1 0 to 250 0 s in steps of 0 1 Timing accuracy 100 ms or 0 5 of total time Note 1 Elements Trip CURRENT UNBALANCE Unbalance I2 I1 if Iavg FLA I2 I1 Iavg FLA if Iavg FLA Range 0 to 100 UB in steps of 1 Pickup level 4 to 40 UB in steps of 1 Time delay 1 to 60 s in steps of 1 Pickup accuracy 2 Timing accuracy 0 5 s or 0 5 of total time No...

Страница 57: ...NICAL JAM Pickup level 1 01 to 3 00 FLA in steps of 0 01 of any one phase blocked on start Time delay 1 to 30 s in steps of 1 Pickup accuracy as per phase current inputs Timing accuracy 0 5 s Note 1 Elements Trip OVERLOAD STALL PROTECTION THERMAL MODEL Overload curves 15 standard overload curves custom curve voltage dependent custom curve for high inertia starting all curves time out against avera...

Страница 58: ...t REDUCED VOLTAGE START Transition level 25 to 300 FLA in steps of 1 Transition time 1 to 600 s in steps of 1 Transition control Current Timer Current and Timer RESTART BLOCK Time delay 1 to 50000 s in steps of 1 Timing accuracy 0 5 s or 0 5 of total time Elements Block RTD Pickup 1 to 250 C in steps of 1 Pickup hysteresis 2 C Time delay 4 s Elements Trip and Alarm UNDERCURRENT Pickup level 0 10 t...

Страница 59: ...e delay 0 1 to 5000 0 s in steps of 0 1 Block from start 0 to 5000 s in steps of 1 Timing accuracy 250 ms or 0 5 of total time Elements Trip and Alarm LOAD SHED Configuration assign to digital inputs 1 to 4 Timing accuracy 100 ms maximum Elements Trip PRESSURE SWITCH Configuration assign to digital inputs 1 to 4 Time delay 0 1 to 100 0 s in steps of 0 1 Block from start 0 to 5000 s in steps of 1 T...

Страница 60: ...on Continuous total reactive energy generation Range 0 to 2000000 000 Mvar hours Timing accuracy 0 5 Update Rate 5 seconds METERED REAL ENERGY CONSUMPTION Description Continuous total real energy consumption Range 0 to 999999 999 MW hours Timing accuracy 0 5 Update rate 5 seconds MOTOR STATUS Description Event record of motor start Timing Accuracy 250 ms OVERTORQUE Pickup level 0 1 to 999999 9 Nm ...

Страница 61: ...o 15000 s in steps of 1 Pickup Accuracy at Iavg 2 CT 1 of 2 CT VT VTfull scale at Iavg 2 CT 1 5 of 20 CT VT VTfull scale Timing accuracy 0 5 s or 0 5 of total time Note 1 NOTE NoteNote 1 NOTE 1 For Timing accuracy specifications marked Note 1 setpoint Motor Load Filter Interval may increase trip alarm times When setpoint is greater than 1 cycle trip alarm times increase 16 7 ms for each additional...

Страница 62: ...CLOCK Accuracy 5 minutes month Supercap backup life 45 days when control power is off 2 2 8 Waveform Capture Trace Memory SAMPLING FREQUENCY Frequency 720 samples per second for 60 Hertz system 600 samples per second for 50 Hertz system ANALOG WAVEFORMS Analog Waveforms Phase currents Ia Ib Ic Phase differential currents Ia Diff Ib Diff Ic Diff Ground Current Phase voltages Van Vab Vbn Vcn Vcb DIG...

Страница 63: ...Temperature Humidity 65 10 C at 93 RH IEC 60255 5 Dielectric Strength 2300 V AC IEC 60255 5 Impulse Voltage 5 kV IEC 60255 5 Insulation Resistance 100 MΩ 500 V AC 10 s IEC 60255 21 1 Sinusoidal Vibration 2 g IEC 60255 22 1 Damped Oscillatory Burst 1 MHz 2 5 kV 1 kV IEC 60255 22 2 Electrostatic Discharge Direct 8 kV IEC 60255 22 3 Radiated RF Immunity 10 V m IEC 60255 22 4 Electrical Fast Transient...

Страница 64: ...peratures less than 20 C the LCD contrast may be impaired 2 2 13 Long term Storage LONG TERM STORAGE Environment In addition to the above environmental considerations the relay should be stored in an environment that is dry corrosive free and not in direct sunlight Correct storage Prevents premature component failures caused by environmental factors such as moisture or corrosive gases Exposure to ...

Страница 65: ... unit to the external wiring Connections in the case are fitted with mechanisms required to allow the safe removal of the relay unit from an energized panel for example automatic CT shorting The unit is mechanically held in the case by pins on the locking handle that cannot be fully lowered to the locked position until the electrical connections are completely mated Any 469 can be installed in any...

Страница 66: ...ual values If access to the front panel controls must be restricted a separate seal can be installed on the cover to prevent it from being opened Hazard may result if the product is not used for its intended purpose FIGURE 3 2 Seal on Drawout Unit 3 1 2 Product Identification Each 469 unit and case are equipped with a permanent label This label is installed on the left side when facing the front o...

Страница 67: ...e and Unit Identification Labels 3 1 3 Installation The 469 case alone or adjacent to another SR series unit can be installed in the panel of a standard 19 inch rack see below for panel cutout dimensions Provision must be made when mounting for the front door to swing open without interference to or from adjacent equipment Normally the 469 unit is mounted in its case when shipped from the factory ...

Страница 68: ...ared slide the 469 case into the panel from the front Applying firm pressure on the front to ensure the front bezel fits snugly against the front of the panel bend out the pair of retaining tabs to a horizontal position from each side of the case as shown below The case is now securely mounted ready for panel wiring If additional support is desired the SR optional mounting kit may be ordered ...

Страница 69: ...on matching case the mechanical key will prevent full insertion of the unit Do not apply strong force in the following step or damage may result To remove the unit from the case Open the cover by grasping the center of the right side and then pulling the cover which will rotate about the hinges on the left Release the locking latch located below the locking handle by pressing upward on the latch w...

Страница 70: ...times be necessary to adjust the handle position slightly to free the unit FIGURE 3 9 Slide Unit out of Case To insert the unit into the case Raise the locking handle to the highest position Hold the unit immediately in front of the case and align the rolling guide pins near the hinges of the locking handle to the guide slots on either side of the case Slide the unit into the case until the guide ...

Страница 71: ...least 16 of network cable available when removing the unit from the case This extra length allows the network cable to be disconnected from the RJ45 connector from the front of the switchgear panel Once disconnected the cable can be left hanging safely outside the case for re inserting the unit back into the case The unit may then be re inserted by first connecting the network cable to the units r...

Страница 72: ...e can be left hanging safely outside the case for re inserting the unit back into the case The unit may then be re inserted by first connecting the network cable to the units rear terminal block see step 3 of Unit Withdrawal and Insertion on page 3 5 Ensure that the network cable does not get caught inside the case while sliding in the unit This may interfere with proper insertion to the case term...

Страница 73: ... Terminal List Terminal Description Terminal Description A01 RTD 1 Hot D21 Assignable Switch 3 A02 RTD 1 Compensation D22 Assignable Switch 4 A03 RTD Return D23 Switch Common A04 RTD 2 Compensation D24 Switch 24 V DC A05 RTD 2 Hot D25 Computer RS485 A06 RTD 3 Hot D26 Computer RS485 A07 RTD 3 Compensation D27 Computer RS485 Common A08 RTD Return E01 1 Trip NC ...

Страница 74: ...ry RS485 F10 not used B03 Auxiliary RS485 F11 Coil Supervision B04 Auxiliary RS485 Common F12 469 Drawout Indicator C01 Access G01 Phase VT Neutral C02 Access G02 Phase A VT C03 469 Under Test G03 Differential A CT C04 469 Under Test G04 Differential B CT D01 RTD 7 Hot G05 Differential C CT D02 RTD 7 Compensation G06 Phase A CT D03 RTD Return G07 Phase B CT D04 RTD 8 Compensation G08 Phase C CT D0...

Страница 75: ... FRONT PANEL LOCAL PROGRAMMING PORT RS232 MOTOR PROGRAM 469PC CIRCUIT BREAKER CONTACTS RS485 COMMON PORT PLC or COMPUTER 4 20mA ANALOG INPUT 1 2 3 4 COMMON THERMAL CAPACITY I AVG STATOR RTDs KW 9 WIRE RS232 PERSONAL COMPUTER RS232 H10 G10 COM GROUND 50 025 STARTER STATUS D17 HOT COMPENSATION RTD RETURN HOT HOT RTD RETURN RTD RETURN HOT RTD RETURN HOT RTD RETURN HOT RTD RETURN HOT RTD SHIELD HOT HO...

Страница 76: ... 90 to 300 V DC 70 to 265 V AC Ensure applied control voltage and rated voltage on drawout case terminal label match For example the HI power supply will work with any DC voltage from 90 to 300 V or AC voltage from 70 to 265 V The internal fuse may blow if the applied voltage exceeds this range The 469 control power must match the installed switching power supply If the applied voltage does not ma...

Страница 77: ...onnections of the connected CTs Unmatched CTs may result in equipment damage or inadequate protection Polarity of the phase CTs is critical for Negative Sequence Unbalance calculation power measurement and residual ground current detection if used See Two Phase CT Configuration on page 8 1 for 2 phase CT information Ground Current Input The 469 has a dual primary isolating transformer for ground C...

Страница 78: ...onjunction with the GE Grid Solutions core balance CT NOTE Note The zero sequence connection is recommended Unequal saturation of CTs size and location of motor resistance of power system and motor core saturation density etc may cause false readings in the residually connected GF circuit NOTE Note Only one ground input should be wired the other input should be unconnected The exact placement of a...

Страница 79: ...CHAPTER 3 INSTALLATION 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL 3 15 FIGURE 3 15 Core Balance Ground CT Installation Unshielded Cable FIGURE 3 16 Core Balance Ground CT Installation Shielded Cable ...

Страница 80: ...ge is relatively small the 1 A or 5 A option is field programmable Proper selection of this settings ensures proper reading of primary phase differential current The 1 A 5 A differential CT chosen must be capable of driving the 469 differential CT burden see Specifications on page 2 6 for ratings The differential CTs may be core balance as shown in the first figure below Alternatively the summatio...

Страница 81: ... delta see FIGURE 3 12 Typical Wiring Diagram on page 3 11 or wye see below The voltage channels are connected in wye internally which means that the jumper shown on the delta source connection of the typical wiring diagram between the phase B input and the 469 neutral terminal must be installed for open delta VTs C B A COM GROUND CURRENT INPUTS PHASE C 1A 5A 1A 5A COM PHASE A COM 1A 5A PHASE B 1A...

Страница 82: ...nput as closed due to induced voltage on the cables as a result of the capacitive effect It is recommended that you use shielded twisted pair wires grounded at one end only for digital inputs and avoid locating these wires in close to current carrying cables contactors or other sources of high EMI DO NOT INJECT VOLTAGES TO DIGITAL INPUTS DRY CONTACT CONNECTIONS ONLY There are 9 digital inputs desi...

Страница 83: ... power of loop powered transducers Refer to Specifications on page 2 6 for maximum current draw from this supply FIGURE 3 21 Loop Powered Transducer Connection 3 2 8 Analog Outputs The 469 provides 4 analog output channels which may be ordered to provide a full scale range of either 0 to 1 mA into a maximum 10 kΩ impedance or 4 to 20 mA into a maximum 1200 Ω impedance Each channel can be configure...

Страница 84: ...n the industrial environment RTD cables should be kept close to grounded metal casings and away from areas of high electromagnetic or radio interference RTD leads should not be run adjacent to or in the same conduit as high current carrying wires FIGURE 3 22 RTD Wiring NOTE Note IMPORTANT The RTD circuitry is isolated as a group with the Analog Input circuitry and the Analog Output circuitry Only ...

Страница 85: ... a poor connection For RTD types other than 10 Ω Copper the error introduced by the jumpers is negligible Although this RTD wiring technique reduces the cost of wiring the following disadvantages must be noted 1 There will be an error in temperature readings due to lead and connection resistances This technique is NOT recommended for 10 Ω Copper RTDs 2 If the RTD Return lead to the 469 or any of t...

Страница 86: ...rn lead can be run back to the 469 See the figure below for a wiring example Running more than one RTD Return lead to the 469 causes significant errors as two or more parallel paths for the return current have been created Use of this wiring scheme causes errors in readings equivalent to that in the Reduced RTD Lead Number application described earlier FIGURE 3 25 RTD Alternate Grounding 3 2 10 Ou...

Страница 87: ... auxiliary contact permitting the trip coil to be energized only when the breaker is closed When these contacts are open as detected by the Starter Status Digital Input monitoring breaker auxiliary contacts trip coil supervision circuit is automatically disabled This logic allows the trip circuit to be monitored only when the breaker is closed 2 AUXILIARY 3 AUXILIARY The auxiliary relays may be pr...

Страница 88: ...ded Commercially available repeaters can also be used to add more than 32 relays on a single channel Suitable cable should have a characteristic impedance of 120 Ω e g Belden 9841 and total wire length should not exceed 4000 ft Commercially available repeaters will allow for transmission distances greater than 4000 ft Voltage differences between remote ends of the communication link are not uncomm...

Страница 89: ...r starter for dielectric strength flash or hipot with the 469 installed The 469 is rated for 1 9 kV AC for 1 second or 1 6 kV AC for 1 minute per UL 508 isolation between relay contacts CT inputs VT inputs trip coil supervision and the safety ground terminal G12 Some precautions are required to prevent damage to the 469 during these tests Filter networks and transient protection clamps are used be...

Страница 90: ...3 26 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 3 INSTALLATION FIGURE 3 28 Testing for Dielectric Strength ...

Страница 91: ...CHAPTER 3 INSTALLATION 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL 3 27 3 2 14 2 Speed Motor Wiring ...

Страница 92: ...3 28 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 3 INSTALLATION ...

Страница 93: ...The RS232 program port is also provided for connection with a computer running the EnerVista 469 Setup software 4 1 2 Display The 40 character liquid crystal display allows visibility under varied lighting conditions While the keypad and display are not being used the screen will display system information by scrolling through a maximum of 20 user selected default messages These default messages w...

Страница 94: ...Y RS485 Flashes when there is any activity on the communication port Remains on solid if incoming data is valid and intended for the slave address programmed in the relay LOCKOUT Indicates start attempts will be blocked either by a programmed lockout time or a condition that is still present RESET POSSIBLE A trip or latched alarm may be reset Press the RESET key to clear the trip or alarm MESSAGE ...

Страница 95: ... One of the RTD measurements has exceeded its RTD alarm or trip level LOSS OF LOAD Average motor current has fallen below the undercurrent alarm or trip level or power consumption has fallen below the underpower alarm or trip level Output Relay LED Indicators 1 TRIP The 1 TRIP relay has operated energized 2 AUXILIARY The 2 AUXILIARY relay has operated energized 3 AUXILIARY The 3 AUXILIARY relay ha...

Страница 96: ...ub pages The MESSAGE and MESSAGE keys are used to navigate through the sub pages A summary of the settings and actual values can be found in the chapters 5 and 6 respectively The ENTER key is dual purpose It is used to enter the sub pages and to store altered settings values into memory to complete the change The MESSAGE key can also be used to enter sub pages but not to store altered settings The...

Страница 97: ...ings The name of this user defined input will be changed in this example from the generic General Sw A to something more descriptive If an application is to be using the relay as a station monitor it is more informative to rename this input Station Monitor Press the decimal to enter the text editing mode The first character will appear underlined as follows Press the VALUE keys until the character...

Страница 98: ... the SETTINGS ACCESS settings may be changed to Restricted The passcode cannot be entered until terminals C1 and C2 access terminals are shorted When settings access is allowed the settings Access LED indicator on the front of the 469 will be lit Settings changes take effect immediately even when motor is running However changing settings while the motor is running is not recommended as any mistak...

Страница 99: ... the original settings value reappears If the entered settings is out of step an adjusted value will be stored e g 101 for a settings that steps 95 100 105 is stored as 100 If a mistake is made entering the new value pressing ESCAPE returns the settings to its original value Text editing is a special case described in detail in Entering Alphanumeric Text on page 4 5 Each time a new settings is suc...

Страница 100: ... Major Caused by detection of a corrupted location in the program memory as determined by a CRC error check Any function of the relay is susceptible to malfunction from this failure Self Test Warning 2 Replace Immediately Major Caused by a failure of the analog to digital converter A D1 The integrity of system input measurements is affected by this failure Self Test Warning 3 Replace Immediately M...

Страница 101: ...r was lost Factory data includes serial number calibration date and order code Clock Not Set Program Date Time Minor Occurs if the clock has not been set Unit Temp Exceeded Service CheckAmbient Minor Caused by the detection of unacceptably low less than 40 C or high greater than 85 C temperatures detected inside the unit Unit Not Calibrated Replace Immediately Minor This warning occurs when the re...

Страница 102: ...e disconnected i e off line or connected i e on line to a 469 device In off line mode Settings files can be created for eventual downloading to the device In on line mode you can communicate with the device in real time This no charge software provided with every 469 relay can be run from any computer supporting Microsoft Windows 95 or higher This chapter provides a summary of the basic EnerVista ...

Страница 103: ...2 Hardware Communications from the EnerVista 469 Setup to the 469 can be accomplished three ways RS232 RS485 and Ethernet communications The following figures illustrate typical connections for RS232 and RS485 communications FIGURE 4 2 Communications using The Front RS232 Port ...

Страница 104: ...4 12 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 4 INTERFACES FIGURE 4 3 Communications using Rear RS485 Port FIGURE 4 4 Communications using Rear Ethernet Port 808839A1 CDR ...

Страница 105: ...e the following procedure to install the EnerVista 469 Setup software from the enclosed GE EnerVista CD Insert the GE EnerVista CD into your CD ROM drive Click the Install Now button and follow the installation instructions to install the no charge EnerVista software on the local PC When installation is complete start the EnerVista Launchpad application Click the IED Setup section of the Launch Pa...

Страница 106: ...69 EnerVista Launchpad will obtain the latest installation software from the Web or CD and automatically start the installation process A status window with a progress bar will be shown during the downloading process Select the complete path including the new directory name where the EnerVista 469 Setup software will be installed ...

Страница 107: ...iles will be installed in the directory indicated and the installation program will automatically create icons and add EnerVista 469 Setup software to the Windows start menu Click Finish to end the installation The 469 device will be added to the list of installed IEDs in the EnerVista Launchpad window as shown below ...

Страница 108: ...hernet communications see Configuring Ethernet Communications on page 4 18 Install and start the latest version of the EnerVista 469 Setup software available from the GE EnerVista CD See the previous section for the installation procedure Click on the Device Setup button to open the Device Setup window Click the Add Site button to define a new site Enter the desired site name in the Site Name fiel...

Страница 109: ...e val ues cannot be changed 2 Click the Read Order Code button to connect to the 469 device and upload the order code If an communications error occurs ensure that the 469 serial communications values entered in the previous step correspond to the relay setting values 3 Click OK when the relay order code has been received The new device will be added to the Site List window or Online window locate...

Страница 110: ... to the Relay on page 4 19 to begin communications 4 3 3 Configuring Ethernet Communications Before starting verify that the Ethernet cable is properly connected to the RJ 45 Ethernet port Install and start the latest version of the EnerVista 469 Setup software available from the GE enerVista CD See the previous section for the installation procedure Click on the Device Setup button to open the De...

Страница 111: ...urs ensure that the 469 Ethernet communications values entered in the previous step correspond to the relay setting values Click OK when the relay order code has been received The new device will be added to the Site List window or Online window located in the top left corner of the main EnerVista 469 Setup window The 469 Site Device has now been configured for Ethernet communications Proceed to t...

Страница 112: ...the Front Panel Settings window as shown below FIGURE 4 5 Main Window after Connection The Front Panel Settings window will open with a corresponding status indicator on the lower left of the EnerVista 469 Setup window If the status indicator is red verify that the serial cable is properly connected to the relay and that the relay has been properly configured for communications steps described ear...

Страница 113: ...according to user specifications Other settings and commands windows can be displayed and edited in a similar manner Actual values windows are also available for display These windows can be locked arranged and resized at will NOTE Note Refer to the EnerVista 469 Setup Help File for additional information about the using the software ...

Страница 114: ...ple to illustrate the entering of settings In this example we will be changing the current sensing settings Establish communications with the relay Select the Settings System Setup menu item This can be selected from the device settings tree or the main window menu bar Select the PHASE CT PRIMARY settings by clicking anywhere in the parameter box This will display three arrows two to increment dec...

Страница 115: ...it 4 4 3 File Support Opening any EnerVista 469 Setup file will automatically launch the application or provide focus to the already opened application If the file is a Settings file has a 469 extension which had been removed from the Settings List tree menu it will be added back to the Settings List tree New files will be automatically added to the tree which is sorted alphabetically with respect...

Страница 116: ...ta 469 Setup window Settings files are accessed in the Settings List control bar window or the Files Window Use the following procedure to download and save Settings files to a local PC Ensure that the site and corresponding device s have been properly defined and configured as shown in Connecting EnerVista 469 Setup to the Relay on page 4 16 Select the desired device from the site list Select the...

Страница 117: ...ista 469 Setup software allows the user to create new Settings files independent of a connected device These can be uploaded to a relay at a later date One method of doing this the EnerVista Motor Settings Auto Config option allows the user to easily create new Settings Files automatically using a guided step by step process as outlined below NOTE Note The Motor Settings Auto Config option does NO...

Страница 118: ...lect File Motor Settings Auto Config The EnerVista 469 Setup software displays the following box allowing the configuration of the Settings File as shown NOTE Note It is important to define the correct firmware version to ensure that settings not available in a particular version are not downloaded into the relay Select the Firmware Version for the new Settings File ...

Страница 119: ...tore the file or select any displayed file name to update an existing file All 469 Settings Files should have the extension 469 for example motor1 469 Click Next and OK to continue the process A new window Step 1 will appear Fill in the fields as indicated When complete press Next The next window Step 2 will appear as follows NOTE Note As each Step is completed the user will be prompted to make ap...

Страница 120: ...4 28 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 4 INTERFACES Continue filling in the fields as indicated Once you have completed all 6 Steps the final window will show as follows ...

Страница 121: ...eate new Settings files independent of a connected device These can be uploaded to a relay at a later date The following manual procedure as distinct from the Motor Settings Auto Config option described above illustrates how to create new Settings Files In the File pane right click on File Select the New Settings File item The EnerVista 469 Setup software displays the following window allowing the...

Страница 122: ...ion of the device and the purpose of the file To select a file name and path for the new file click the button beside the File Name box Select the file name and path to store the file or select any displayed file name to update an existing file All 469 Settings Files should have the extension 469 for example motor1 469 Click the appropriate radio button yes or no to choose between Auto Config or m...

Страница 123: ... firmware has been upgraded for example this is required for firmware upgrades This is illustrated in the following procedure Establish communications with the 469 relay Select the Actual Product Information menu item Record the Software Revision identifier of the relay firmware as shown below Load the Settings file to be upgraded into the EnerVista 469 Setup environment as described in Adding Set...

Страница 124: ...om a File on page 4 33 for instructions on loading this Settings file into the 469 Printing Settings and Actual Values The EnerVista 469 Setup software allows the user to print partial or complete lists of settings and actual values Use the following procedure to print a list of settings Select a previously saved Settings file in the File pane or establish communications with a 469 device From the...

Страница 125: ...lists can be printed in the same manner by right clicking on the desired device in the device list and selecting the Print Device Information option Loading Settings from a File An error message will occur when attempting to download a Settings file with a revision number that does not match the relay firmware If the firmware has been upgraded since saving the Settings file see Upgrading Settings ...

Страница 126: ...g warning message to remind the user to remove the relay from service before attempting to load settings into an in service relay Select the target relay from the list of devices shown Click Send If there is an incompatibility an error of the following type will occur If there are no incompatibilities between the target device and the Settings file the data will be transferred to the relay An indi...

Страница 127: ...sary to load this file back into the 469 Refer to Downloading and Saving Settings Files on page 4 24 for details on saving relay settings to a file 4 5 3 Loading New Firmware Loading new firmware into the 469 flash memory is accomplished as follows Connect the relay to the local PC and save the settings to a file as shown in Downloading and Saving Settings Files on page 4 24 Select the Communicati...

Страница 128: ...to cancel the upgrade The EnerVista 469 Setup software now prepares the 469 to receive the new firmware file The 469 will display a message indicating that it is in Upload Mode While the file is being loaded into the 469 a status box appears showing how much of the new firmware file has been transferred and how much is remaining as well as the upgrade status The entire transfer process takes appro...

Страница 129: ...ay See Loading Settings from a File on page 4 33 for details Modbus addresses assigned to firmware modules features settings and corresponding data items i e default values min max values data type and item size may change slightly from version to version of firmware Refer to GEK 106491C 469 Communications Guide The addresses are rearranged when new features are added or existing features are enha...

Страница 130: ... used to capture waveforms or view trace memory from the 469 relay at the instance of a trip A maximum of 128 cycles can be captured and the trigger point can be adjusted to anywhere within the set cycles A maximum of 16 traces can be buffered stored with the buffer cycle trade off The following waveforms can be captured Phase A B and C currents Ia Ib and Ic Differential A B and C currents Idiffa ...

Страница 131: ...d vertical line indicates the trigger point of the relay The date and time of the trigger is displayed at the top left corner of the window To match the captured waveform with the event that triggered it make note of the time and date shown in the graph Then find the event that matches the same time and date in the event recorder The event record will provide additional information on the cause an...

Страница 132: ...ropriate boxes Click OK to store these graph attributes and to close the window The Waveform Capture window will reappear with the selected graph attributes available for use 4 6 3 Phasors The EnerVista 469 Setup software can be used to view the phasor diagram of three phase currents and voltages The phasors are for phase voltages Va Vb and Vc phase currents Ia Ib and Ic With the EnerVista 469 Set...

Страница 133: ... the current to lead the voltage by 45 the 469 relay will display such angle as 315 Lag instead of 45 Lead When the currents and voltages measured by the relay are zero the angles displayed by the relay and those shown by the EnerVista 469 Setup software are not fixed values VOLTAGE VECTORS Assigned to Phasor Set 1 Graph 1 CURRENT VECTORS Assigned to Phasor Set 2 Graph 2 CURRENT LEVEL Displays the...

Страница 134: ...e EnerVista 469 Setup software are Currents Voltages Phase Currents A B and C and Average Phase Current Motor Load Current Unbalance Ground Current Differential Currents A B and C System Frequency Voltages Vab Vbc Vca Van Vbn Vcn Power Power Factor Real kW or hp Reactive kvar and Apparent kVA Power Positive Watthours Positive and Negative Varhours Torque Temperature Hottest Stator RTD Thermal Capa...

Страница 135: ...le Rate through the pull down menu If you want to save the information captured by trending Check the box besides Log Samples to File The following dialog box will appear requesting for file name and path The file is saved as csv comma delimited values file which can be viewed and manipulated with compatible third party software Ensure that the sample rate not less than 5 seconds otherwise some da...

Страница 136: ... EnerVista 469 Setup software The event recorder stores generator and system information each time an event occurs e g breaker failure A maximum of 256 events can be stored where E256 is the most recent event and E01 is the oldest event E01 is overwritten whenever a new event occurs Refer to Event 01 to Event 256 on page 6 33 for additional information on the event recorder SAVE DATA TO FILE Selec...

Страница 137: ...rmation at the moment of the event occurrence Change the event number on the Select Event box EVENT LISTING Lists the last 256 events with the most recent displayed at top of list EVENT SELECTION Select an event row to view event data information which will be displayed in the window to the right CLEAR EVENTS Click the Clear Events button to clear the event list from memory SAVE EVENTS Click the S...

Страница 138: ...displayed 4 6 7 Viewing Actual Values You can view real time relay data such as input output status and measured parameters From the main window menu bar selecting Actual Values opens a window with tabs each tab containing data in accordance to the following list 1 Motor and System Status Motor status either stopped starting or running It includes values such as motor load thermal capacity used mo...

Страница 139: ...ion 3 Motor Learned Data Learned Acceleration Time Learned Starting Current Learned Starting Capacity Last Acceleration Time Last Starting Current Last Starting Capacity Average Motor Load Learned 4 Maintenance data This is useful statistical information that may be used for preventive maintenance It includes Trip counters General counter such as Number of Motor Starts Number of Emergency Restarts...

Страница 140: ...or complete details on actual values refer to Chapter 6 To view a separate window for each group of actual values select the desired item from the tree and double click with the left mouse button Each group will be opened on a separate tab The windows can be re arranged to maximize data viewing as shown in the following figure showing actual current voltage and motor status values tiled in the sam...

Страница 141: ...pricing can be found at http www enervista com Install the EnerVista Viewpoint software from the GE EnerVista CD Ensure that the 469 device has been properly configured for either serial or Ethernet communications see previous sections for details Click the Viewpoint window in EnerVista to log into EnerVista Viewpoint At this point you will be required to provide a login and password if you have n...

Страница 142: ...ecting EnerVista 469 Setup to the Relay on page 4 16 for details FIGURE 4 12 Device Setup Screen Example Click the Read Order Code button to connect to the 469 device and upload the order code If a communications error occurs ensure that communications values entered in the previous step correspond to the relay setting values Click OK when complete From the EnerVista main window select the IED Das...

Страница 143: ...OTOR MANAGEMENT RELAY INSTRUCTION MANUAL 4 51 FIGURE 4 13 Plug and Play Dashboard Click the Dashboard button below the 469 icon to view the device information We have now successfully accessed our 469 through EnerVista Viewpoint ...

Страница 144: ...OR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 4 INTERFACES FIGURE 4 14 EnerVista Plug and Play Screens For additional information on EnerVista viewpoint please visit the EnerVista website at http www enervista com ...

Страница 145: ...grouped into a number of pages and sub pages as shown below Each page of settings e g S2 SYSTEM SETUP has a section which describes in detail all the settings found on that page SETPOINTS S1 469 SETUP PASSCODE See page 8 MESSAGE PREFERENCES See page 9 MESSAGE COMMUNICATION See page 11 MESSAGE REAL TIME CLOCK See page 13 MESSAGE DEFAULT MESSAGES See page 14 MESSAGE MESSAGE SCRATCHPAD See page 15 ME...

Страница 146: ...ESSAGE END OF PAGE SETPOINTS S3 DIGITAL INPUTS STARTER STATUS See page 27 MESSAGE ASSIGNABLE INPUT 1 See page 27 MESSAGE ASSIGNABLE INPUT 2 See page 27 MESSAGE ASSIGNABLE INPUT 3 See page 27 MESSAGE ASSIGNABLE INPUT 4 See page 27 MESSAGE END OF PAGE SETPOINTS S4 OUTPUT RELAYS RELAY RESET MODE See page 36 MESSAGE FORCE OUTPUT RELAYS See page 37 MESSAGE END OF PAGE SETPOINTS S5 THERMAL MODEL THERMAL...

Страница 147: ...ENT UNBALANCE See page 63 MESSAGE GROUND FAULT See page 65 MESSAGE PHASE DIFFERENTIAL See page 66 MESSAGE END OF PAGE SETPOINTS S7 MOTOR STARTING ACCELERATION TIMER See page 68 MESSAGE START INHIBIT See page 68 MESSAGE JOGGING BLOCK See page 69 MESSAGE RESTART BLOCK See page 71 MESSAGE END OF PAGE SETPOINTS S8 RTD TEMPERATURE RTD TYPES See page 72 MESSAGE RTD 1 See page 73 MESSAGE RTD 2 See page 7...

Страница 148: ...E REVERSAL See page 80 MESSAGE FREQUENCY See page 81 MESSAGE END OF PAGE SETPOINTS S10 POWER ELEMENTS POWER FACTOR See page 83 MESSAGE REACTIVE POWER See page 84 MESSAGE UNDERPOWER See page 85 MESSAGE REVERSE POWER See page 86 MESSAGE TORQUE SETUP See page 86 MESSAGE OVERTORQUE See page 87 MESSAGE END OF PAGE SETPOINTS S11 MONITORING TRIP COUNTER See page 88 MESSAGE STARTER FAILURE See page 88 MES...

Страница 149: ...SSAGE ANALOG OUTPUT 3 See page 94 MESSAGE ANALOG OUTPUT 4 See page 94 MESSAGE ANALOG INPUT 1 See page 96 MESSAGE ANALOG INPUT 2 See page 96 MESSAGE ANALOG INPUT 3 See page 96 MESSAGE ANALOG INPUT 4 See page 96 MESSAGE ANALOG INPUT DIFF 1 2 See page 98 MESSAGE ANALOG INPUT DIFF 3 4 See page 99 MESSAGE END OF PAGE SETPOINTS S13 469 TESTING SIMULATION MODE See page 101 MESSAGE PRE FAULT SETUP See pag...

Страница 150: ...rameters and stores them as pre trip values which will allow for troubleshooting after the trip occurs The cause of last trip message is updated with the current trip and the 469 display defaults to that message All trip features are automatically logged and date and time stamped as they occur In addition all trips are counted and logged as statistics such that any long term trends may be identifi...

Страница 151: ...hat message Blocks are normally not logged as events If however a motor start or start attempt is detected when a block is active it is automatically logged as a date and time stamped event This scenario might occur if someone shorts across the block terminals and overrides the 469 protection to start the motor 5 1 3 Relay Assignment Practices There are six output relays Five of the relays are alw...

Страница 152: ...CODE FOR ACCESS message appears when entering the S1 469 SETUP PASSCODE subgroup 4 Enter the correct passcode A flash message will advise if the code is incorrect and allows a retry If the passcode is correct and the settings access jumper is installed the SETPOINT ACCESS Permitted message appears 5 settings can now be entered Press ESCAPE to exit the S1 469 SETUP PASSCODE group and program the ap...

Страница 153: ...ither Celsius or Fahrenheit Each temperature value is displayed as C or F RTD settings are always displayed in degrees Celsius TRACE MEMORY TRIGGER POSITION Sets the trigger position for waveform capture This value represents the percentage of cycles captured and recorded in the trace memory buffer prior to the trigger trip TRACE MEMORY BUFFERS Sets the number of traces to capture and the number o...

Страница 154: ...es to average can be determined by using current waveform capture The number of cycles to complete one stroke can be determined from this waveform This value can be used as the starting point for the motor load filter interval Additional fine tuning may be required This settings is not seen if NOMINAL SYSTEM FREQUENCY is Variable When set greater than one cycle Motor Load Filter Interval may incre...

Страница 155: ...dress detected by all relays Addresses do not have to be sequential but no two units can have the same address or errors will occur Generally each unit added to the link uses the next higher address starting at 1 Baud rates can be selected as 300 1200 2400 4800 9600 or 19200 The data frame is fixed at 1 start 8 data and 1 stop bits while parity is optional The computer RS485 port is a general purp...

Страница 156: ...ge 1 to 254 in steps of 1 MESSAGE COMPUTER RS485 BAUD RATE 9600 Range 300 1200 2400 4800 9600 19200 MESSAGE COMPUTER RS485 PARITY None Range None Odd Even MESSAGE FRONT PORT RS232 BAUD RATE 19200 Range 300 1200 2400 4800 9600 19200 MESSAGE IP ADDRESS 0 0 0 0 Range standard IP address format MESSAGE SUBNET IP MASK 255 255 255 000 Range standard IP address format MESSAGE GATEWAY IP ADDRESS 0 0 0 0 R...

Страница 157: ...f It has an accuracy of approximately 5 minutes per month It must be periodically corrected manually through the front panel or via the RS485 serial link clock update command If the approximate time an event occurred without synchronization to other relays is sufficient then entry of time date from the front panel keys is adequate If the RS485 serial communication link is used then all the relays ...

Страница 158: ...efault messages 1 Enter the correct passcode for the S1 469 SETUP PASSCODE ENTER PASSCODE FOR ACCESS settings unless the passcode has already been entered or the passcode is 0 defeating the passcode security feature 2 Move to the message to be added to the default message list using the MESSAGE and MESSAGE keys The selected message can be any actual value or Message Scratchpad message 3 Press ENTE...

Страница 159: ...ing during default message display This might be useful for reminding operators to perform certain tasks The messages may be entered from the communications ports or through the keypad The following procedure demonstrates the use of the message scratchpad 1 Select the user message to be changed 2 Press the decimal key to enter text mode An underline cursor will appear under the first character 3 U...

Страница 160: ...pe of trip This command clears these counters PRESET DIGITAL COUNTER When one of the assignable Digital Inputs is configured as Counter this command presets the counter If the counter is an incrementing type setting the preset value to 0 effectively resets the counter CLEAR EVENT RECORDER The event recorder saves the last 256 events automatically overwriting the oldest event If desired this comman...

Страница 161: ...gh motor operation These learned parameters include acceleration time starting current and starting thermal capacity Total motor running hours may also be viewed in actual values On a new installation or if new equipment is installed all this information can be reset with this settings RESET STARTER INFORMATION The total number of starter operations can be viewed in actual values Use this settings...

Страница 162: ...t the time of order so that the proper hardware is installed A value for MOTOR FULL LOAD AMPS FLA must also be entered The value may be taken from the motor nameplate data sheets The service factor may be entered as overload pickup see S5 Thermal Model on page 5 38 For high resistance grounded systems sensitive ground current detection is possible if the 50 0 025 ground CT input is used To use the...

Страница 163: ...llows for very sensitive differential protection When the two speed motor feature is used a value for a second set of Phase CTs and motor FLA must be entered here for Speed 2 If the Phase CTs are the same as the speed 1 phase CTs simply enter the same value here as well Example 1 Consider a 469 with a 5 A Phase CT secondary and Ground Fault Detection set to Residual and a motor with the following ...

Страница 164: ...tween 40 and 240 V when the primary is at MOTOR NAMEPLATE VOLTAGE All voltage protection features that require a level settings are programmed as a percent of the MOTOR NAMEPLATE VOLTAGE or rated voltage where MOTOR NAMEPLATE VOLTAGE represents the rated design voltage line to line For example given the motor nameplate voltage as 4160 V and the VTs are 4160 120 Open Delta set the voltage sensing s...

Страница 165: ...y a significant amount trip and alarm times will decrease until they match the programmed delay The exceptions to this increased time are the short circuit ground fault and differential elements which will trip as per specification If the sequence of phase rotation for a given plant is ACB rather than the standard ABC the SYSTEM PHASE SEQUENCE settings may be used to accommodate this This settings...

Страница 166: ...g the assigned trip relay s If Current or Timer is selected when the motor current falls below the user s programmed Transition Level transition will be initiated by activating the assigned output relay for 1 second If the timer expires before that transition is initiated the transition will be initiated regardless If Current and Timer is selected when the motor current falls below the user s prog...

Страница 167: ...d voltage contactor and the full voltage contactor Once transition is initiated the 469 assumes the motor is still running for at least 2 seconds This prevents the 469 from recognizing an additional start if motor current goes to zero during an open transition 808724A2 CDR CC1 CC2 469 BLOCK TRIP STOP START REDUCED VOLTAGE CONTACTOR FULL VOLTAGE CONTACTOR CC1 SEAL IN 469 3 AUX CC2 SEAL IN 808725A1 ...

Страница 168: ...own in ACTUAL VALUES A2 METERING DATA POWER METERING POSITIVE WATTHOURS 808723A1 CDR FULL VOLTAGE AUXILIARY a REDUCED VOLTAGE AUXILIARY a STARTER STATUS SWITCH INPUT Setpoint Starter Auxiliary A D16 D23 REDUCED VOLTAGE STARTER AUXILIARY A STATUS INPUT REDUCED VOLTAGE STARTER AUXILIARY B STATUS INPUT REDUCED VOLTAGE AUXILIARY b FULL VOLTAGE AUXILIARY b D16 D23 STARTER STATUS SWITCH INPUT Setpoint S...

Страница 169: ...ON MANUAL 5 25 Positive var hours Display and set actual value shown in ACTUAL VALUES A2 METERING DATA POWER METERING POSITIVE VARHOURS Negative var hours Display and set actual value shown in ACTUAL VALUES A2 METERING DATA POWER METERING NEGATIVE VARHOURS ...

Страница 170: ...eatures are in use MWh and Mvarh metering RTD maximums the event record analog input minimums and maximums number of motor trips number of trips by type total motor running hours learned parameters number of starter operations number of motor starts number of emergency restarts and the digital counter Shorting the 469 Test input terminals C3 and C4 prevents all of this data from being corrupted or...

Страница 171: ...D23 are monitored to detect the breaker or contactor state open signifying the breaker or contactor is open and shorted signifying closed The 469 will then determine that a motor has made the transition from running to stopped only when the measured current is less than 5 CT ratio and the a contact is open If Starter Auxiliary B is chosen terminals D16 and D23 are monitored to detect the breaker o...

Страница 172: ...or is in Speed 1 This allows the 469 to determine which settings should be active at any given point in time Remote Alarm PATH SETTINGS S3 DIGITAL INPUTS ASSIGNABLE INPUT 1 4 These settings apply only if the INPUT 1 4 FUNCTION is Remote Alarm Once the Remote Alarm function is chosen for one of the assignable digital inputs the settings messages shown here will follow the assignment message An alar...

Страница 173: ... detected a timer will be loaded with the delay programmed If that delay expires before a contact closure is detected a trip will occur Once the motor is stopped the scheme is reset Load Shed Trip PATH SETTINGS S3 DIGITAL INPUTS ASSIGNABLE INPUT 1 4 These settings apply only if the INPUT 1 4 FUNCTION is Load Shed Trip Once the load shed trip function is chosen for one of the assignable digital inp...

Страница 174: ...ssages shown here will follow the assignment message The Pressure Switch Trip feature may be blocked for a specified period of time from a motor start A value of zero for the Block time indicates that the feature is always active when the motor is stopped or running After the block delay has expired the digital input will be monitored If a closure occurs after the specified delay a trip will occur...

Страница 175: ...n Switch Trip is chosen for a digital input the settings shown follow the assignment message When the motor is stopped or running the digital input will be monitored If a closure occurs a trip will occur after the specified delay ASSIGNABLE INPUT 1 INPUT 1 FUNCTION Vibration Sw Alarm Range See above MESSAGE VIBRATION SWITCH ALARM Unlatched Range Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm ...

Страница 176: ...its that are passing by on a conveyor glass bottles for instance The probe could be powered from the 24 V from the input switch power supply The NPN transistor output could be taken to one of the assignable digital inputs configured as a counter Tachometer PATH SETTINGS S3 DIGITAL INPUTS ASSIGNABLE INPUT 1 4 ASSIGNABLE INPUT 1 INPUT 1 FUNCTION Digital Counter Range See above MESSAGE COUNTER UNITS ...

Страница 177: ...will operate if the motor fails to reach the set speed in the allotted time This element is active when motor is running and ignored while the motor is stopped The RPM value may be viewed with the A2 METERING SPEED TACHOMETER actual value For example an inductive proximity probe or hall effect gear tooth sensor may be used to sense the key on the motor The probe could be powered from the 24 V from...

Страница 178: ...After the block delay has expired the digital input will be monitored If the switch is not in its normal state after the specified delay an alarm or trip will occur Capture Trace PATH SETTINGS S3 DIGITAL INPUTS ASSIGNABLE INPUT 1 4 ASSIGNABLE INPUT 1 INPUT 1 FUNCTION General Sw A Range See above MESSAGE SWITCH NAME General Sw A Range 12 alphanumeric characters MESSAGE GENERAL SWITCH A Normally Ope...

Страница 179: ...GNABLE INPUT 1 4 Setting the INPUT 1 4 FUNCTION to Simulate Fault allows the user to start the Simulate Fault mode as per the S13 469 TESTING SIMULATION MODE SIMULATION MODE setting via a switch input This is typically used for relay or system testing There are no additional Digital Input settings associated with this value Simulate Pre Fault Fault PATH SETTINGS S3 DIGITAL INPUTS ASSIGNABLE INPUT ...

Страница 180: ...rips and alarms will reset automatically once the condition is no longer present If any condition may be reset the Reset Possible LED will be lit All Block Start features reset automatically when the lockout time has expired and the trip has been reset The other relays may be programmed to All Resets which allows reset from the front keypad or the remote reset switch input or the communications po...

Страница 181: ... RELAY option is NOT allowed when the selected relay output is already active due to trip or alarm condition when the 469 is in start block condition or when the 469 is not in service NOTE Note IMPORTANT NOTE The forced relay will override any trip or alarm conditions i e when the relay is forced and trip occurs the relay will still be enabled when the trip condition is reset Control power loss in...

Страница 182: ...r edges of the rotor bars The effective resistance of the rotor is therefore at a maximum during a locked rotor condition as is rotor heating When the motor is running at rated speed the voltage induced in the rotor is at a low frequency approximately 1 Hz and therefore the effective resistance of the rotor is reduced quite dramatically During running overloads the motor thermal limit is typically...

Страница 183: ...NSI IEEE C37 96 1 10 8 6 4 2 100 80 60 40 20 200 300 400 0 100 200 300 400 500 600 CURRENT TIME SECONDS HIGH INERTIA MOTOR RUNNING OVERLOAD A B AND C ARE THE ACCELERATION THERMAL LIMIT CURVES AT 100 90 AND 80 VOLTAGE RESPECTIVELY E F AND G ARE THE SAFE STALL THERMAL LIMIT TIMES AT 100 90 AND 80 VOLTAGE RESPECTIVELY 806827A2 CDR ...

Страница 184: ... MESSAGE OVERLOAD PICKUP LEVEL 1 01 x FLA Range 1 01 to 1 25 in steps of 0 01 MESSAGE ASSIGN TRIP RELAYS Trip Range Trip Trip Aux2 Trip Aux2 Aux3 Trip Aux3 MESSAGE UNBALANCE BIAS K FACTOR 0 Range 0 to 19 in steps of 1 0 defeats this feature MESSAGE COOL TIME CONSTANT RUNNING 15 min Range 1 to 1000 min in steps of 1 MESSAGE COOL TIME CONSTANT STOPPED 30 min Range 1 to 1000 min in steps of 1 MESSAGE...

Страница 185: ...s the distinct characteristics of the motor thermal limits are formed into a smooth homogeneous curve Sometimes only a safe stall time is provided This is acceptable if the motor has been designed conservatively and can easily perform its required duty without infringing on the thermal limit In this case the protection can be conservative and process integrity is not compromised If a motor has bee...

Страница 186: ...able below FIGURE 5 6 469 Standard Overload Curves 469 Motor Management Relay STANDARD OVERLOAD CURVES x1 x15 100000 10000 1000 100 10 1 00 0 10 1 00 MULTIPLE OF FULL LOAD AMPS TIME IN SECONDS 10 100 1000 806804A5 CDR Table 5 1 469 Standard Overload Curve Multipliers PICKUP FLA STANDARD CURVE MULTIPLIERS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 01 4353 6 8707 2 13061 17414 21768 26122 30475 34829 391...

Страница 187: ...109 75 118 89 128 04 137 18 3 50 7 77 15 55 23 32 31 09 38 87 46 64 54 41 62 19 69 96 77 73 85 51 93 28 101 05 108 83 116 60 3 75 6 69 13 39 20 08 26 78 33 47 40 17 46 86 53 56 60 25 66 95 73 64 80 34 87 03 93 73 100 42 4 00 5 83 11 66 17 49 23 32 29 15 34 98 40 81 46 64 52 47 58 30 64 13 69 96 75 79 81 62 87 45 4 25 5 12 10 25 15 37 20 50 25 62 30 75 35 87 41 00 46 12 51 25 56 37 61 50 66 62 71 7...

Страница 188: ...5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 1 75 x FLA 169 7 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 2 00 x FLA 116 6 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 2 25 x FLA 86 1 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 2 50 x FLA 66 6 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 2 75 x FLA 53 3 s R...

Страница 189: ...es for 30 pre determined current levels As seen in the figure below if the running overload thermal limit curve were smoothed into one curve with the locked rotor overload curve the motor could not start at 80 line voltage A custom curve is required MESSAGE TIME TO TRIP AT 4 75 x FLA 16 2 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 5 00 x FLA 14 6 s Range 0 5 to 99999 9 s in s...

Страница 190: ...nce of nuisance tripping during motor starts MULTIPLE OF FULL LOAD CURRENT SETPOINT TIME TO TRIP IN SECONDS 0 1 1 0 10 100 1000 10000 0 5 1 10 100 1000 806803A6 CDR 6500 HP 13800 VOLT INDUCED DRAFT FAN MOTOR TYPICAL CUSTOM CURVE 1 2 3 4 5 2 3 4 5 1 PROGRAMMED 469 CUSTOM CURVE RUNNING SAFETIME STATOR LIMIT ACCELERATION SAFETIME ROTOR LIMIT MOTOR CURRENT at 100 VOLTAGE MOTOR CURRENT at 80 VOLTAGE GE...

Страница 191: ...0 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 1 75 x FLA 169 7 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 2 00 x FLA 116 6 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 2 25 x FLA 86 1 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 2 50 x FLA 66 6 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 2 75 x ...

Страница 192: ...IP AT 6 50 x FLA 8 5 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 7 00 x FLA 7 3 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 7 50 x FLA 6 3 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 8 00 x FLA 5 6 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TRIP AT 10 0 x FLA 5 6 s Range 0 5 to 99999 9 s in steps of 0 1 MESSAGE TIME TO TR...

Страница 193: ...tion with the custom curve based on the minimum allowable starting voltage as defined by the minimum allowable line voltage The locked rotor current and safe stall time must also be entered for that voltage A second point of intersection must be entered for 100 line voltage Once again the locked rotor current and the safe stall time must be entered this time for 100 line voltage The protection cur...

Страница 194: ...age Also enter the per unit current and safe stall protection time for 80 line voltage see the Acceleration Curves below 3 Enter the per unit current value for the acceleration overload curve intersect with the custom curve for 100 line voltage Also enter the per unit current and safe stall protection time for 100 line voltage see the Acceleration Curves below 1 1 2 3 4 5 6 7 8 2 3 4 5 6 7 8 9 10 ...

Страница 195: ...dent Overload Curve Custom Curve 1 1 2 3 4 5 6 7 8 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 HIGH INERTIA LOAD OVERLOAD CURVES 8800 HP 13 2 kV REACTOR COOLANT PUMP TIME TO TRIP SECONDS MULTIPLES OF FULL LOAD AMPS 200 300 400 500 600 700 800 900 1000 469 Custom Curve GE Multilin 806822A4 CDR ...

Страница 196: ...ration Curves 1 1 2 3 4 5 6 7 8 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 HIGH INERTIA LOAD OVERLOAD CURVES 8800 HP 13 2 kV REACTOR COOLANT PUMP TIME TO TRIP SECONDS MULTIPLES OF FULL LOAD AMPS 200 300 400 500 600 700 800 900 1000 Acceleration intersect at 80 V Acceleration Intersect at 100 V GE Multilin 806823A4 CDR ...

Страница 197: ... 11 Voltage Dependent Overload Protection Curves NOTE Note The safe stall curve is in reality a series of safe stall points for different voltages For a given voltage there can only be one value of stall current and therefore only one safe stall time 1 1 2 3 4 5 6 7 8 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 HIGH INERTIA LOAD OVERLOAD CURVES 8800 HP 13 2 kV REACTOR COOLANT PUMP TIME TO TRIP ...

Страница 198: ... will shift the acceleration curve linearly and constantly based on measured line voltage during a motor start FIGURE 5 12 Voltage Dependent Overload Protection at 80 Voltage 1 1 2 3 4 5 6 7 8 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 HIGH INERTIA LOAD OVERLOAD CURVES 8800 HP 13 2 kV REACTOR COOLANT PUMP TIME TO TRIP SECONDS MULTIPLES OF FULL LOAD AMPS 200 300 400 500 600 700 800 900 1000 GE ...

Страница 199: ...tion opposite to positive sequence current and hence opposite to the rotor rotation generates a rotor voltage that produces a substantial rotor current This induced current has a frequency approximately 2 times the line frequency 100 Hz for a 50 Hz system or 120 Hz for a 60 Hz system The skin effect in the rotor bars at this frequency causes a significant increase in rotor resistance and therefore...

Страница 200: ...d 30 respectively Based on this assumption the GE Grid Solutions curve illustrates the motor derating for different values of k entered for the UNBALANCE BIAS K FACTOR settings Note that the curve created when k 8 is almost identical to the NEMA derating curve FIGURE 5 14 Medium Motor Derating Factor due to Unbalanced Voltage If a k value of 0 is entered the unbalance biasing is defeated and the o...

Страница 201: ...s the level of thermal capacity used the relay will settle at for current levels below the OVERLOAD PICKUP LEVEL When the motor is running TCused TCused_start TCused_end e t τ TCused_end TCused_end Ieq ol_pkp 1 hot cold 100 808705A2 CDR 0 25 50 75 100 0 30 60 90 120 150 180 Time in Minutes Thermal Capacity Used Cool Time Constant 15 min TCused_start 85 Hot Cold Ratio 80 Ieq Overload Pickup 100 0 2...

Страница 202: ...rrect the thermal model The RTD bias feature is a two part curve constructed using 3 points If the maximum stator RTD temperature is below the RTD BIAS MINIMUM settings typically 40 C no biasing occurs If the maximum stator RTD temperature is above the RTD BIAS MAXIMUM typically at the stator insulation rating or slightly higher then the thermal memory is fully biased and THERMAL CAPACITY USED is ...

Страница 203: ...ng starting and heavy overload conditions when motor heating is relatively fast Note that the RTD bias feature alone cannot create a trip If the RTD bias forces thermal capacity used to 100 the motor current must be above the overload pickup before an overload trip occurs Presumably the motor would trip on stator RTD temperature at that time FIGURE 5 16 RTD Bias Curve Maximum Stator RTD Temperatur...

Страница 204: ...xiliary which would be dedicated as an upstream breaker trip relay Whenever the output relay assigned to backup trip operates it will remain latched regardless of how the trip relay is configured for the Short Circuit Trip element Various situations e g charging a long line to the motor or power factor correction capacitors may cause transient inrush currents during motor starting that may exceed ...

Страница 205: ...e Overload Alarm functions as follows After a motor start when the equivalent motor heating current exceeds the OVERLOAD PICKUP LEVEL an alarm will occur If programmed as Unlatched the overload alarm resets itself when the motor is no longer in overload If programmed as Latched the RESET key must be pressed to reset the alarm once the overload condition is gone Event recording for all alarm featur...

Страница 206: ... the motor is running It is blocked upon the initiation of a motor start for the time defined by the U C BLOCK FROM START settings e g this block may be used to allow pumps to build up head before the undercurrent element trips A value of 0 means the feature is not blocked from start If a value other than 0 is entered the feature is disabled when the motor is stopped and also from the time a start...

Страница 207: ...E when NOMINAL SYSTEM FREQUENCY is set to Variable or MOTOR LOAD FILTER INTERVAL is enabled Refer to section 6 3 1 Current Metering on page 6 11 If enabled a trip and or alarm occurs once the unbalance magnitude equals or exceeds the CURRENT UNBALANCE ALARM TRIP PICKUP for a period of time specified by the CURRENT UNBALANCE ALARM TRIP DELAY If the unbalance level equals or exceeds 40 or when Iavg ...

Страница 208: ...otor heating caused by cyclic short term unbalances see page 55 for details NOTE Note Unusually high unbalance levels may be caused by incorrect phase CT wiring For example fluctuations of current unbalance levels are typically caused by the supply voltage It may be desirable to have a latched alarm to capture any such fluctuations that go beyond the Unbalance Alarm parameters Also a trip is recom...

Страница 209: ...ker clearing time Whenever the output relay assigned to the backup trip operates it will stay latched regardless of how the trip relay is configured for the Ground Fault element GROUND FAULT GROUND FAULT OVERREACH FILTER Off Range On Off MESSAGE GROUND FAULT ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Auxiliary2 Aux2 Aux3 Aux...

Страница 210: ...is momentary DC component will cause each of the phase CTs to react differently and the net current into the ground input of the 469 will not be negligible A 20 ms block of the ground fault elements when the motor starts enables the 469 to ride through this momentary ground current signal The overreach filter removed the DC component from the asymmetrical current present at the moment a fault occu...

Страница 211: ...pickup levels and delays are provided for motor starting and running conditions The Differential trip element is programmable as a fraction of the rated CT The level may be set more sensitive if the Differential CTs are connected in a flux balancing configuration 3 CTs If 6 CTs are used in a summing configuration the values from the two CTs on each phase during motor starting may not be equal sinc...

Страница 212: ...his feature should be set just beyond the longest acceleration time Some motor soft starters allow current to ramp up slowly while others limit current to less than FLA throughout the start Since the 469 is a generic motor relay it cannot differentiate between a motor with a slow ramp up time and one that has completed a start and gone into overload Therefore if the motor current does not rise to ...

Страница 213: ...rmitted If the COOL TIME CONSTANT STOPPED settings is programmed for 30 minutes the lockout time will be equal to EQ 5 11 5 8 3 Jogging Block PATH SETTINGS S7 MOTOR STARTING JOGGING BLOCK The Jogging Block feature may be used to prevent operators from jogging the motor multiple starts and stops performed in rapid succession It consists of two distinct elements Starts Hour and Time Between Starts T...

Страница 214: ... at T 17 minutes the motor is stopped at T 33 minutes a block occurs the lockout time would be 1 hour 33 minutes 27 minutes Time Between Starts Permissible A motor start is assumed to be occurring when the 469 measures the transition of no motor current to some value of motor current At this point the Time Between Starts timer is loaded with the entered time Even unsuccessful start attempts will b...

Страница 215: ...iquid may fall back down the pipe and spin the rotor backwards It would be very undesirable to start the motor at this time In another scenario a motor may be driving a very high inertia load Once the supply to the motor is disconnected the rotor may continue to turn for a long period of time as it decelerates The motor has now become a generator and applying supply voltage out of phase may result...

Страница 216: ...PE 100 Ohm Platinum Range see below Table 5 2 RTD Temperature vs Resistance Temperature 100 Ω Pt DIN 43760 120 Ω Ni 100 Ω Ni 10 Ω Cu C F 50 58 80 31 86 17 71 81 7 10 40 40 84 27 92 76 77 30 7 49 30 22 88 22 99 41 82 84 7 88 20 4 92 16 106 15 88 45 8 26 10 14 96 09 113 00 94 17 8 65 0 32 100 00 120 00 100 00 9 04 10 50 103 90 127 17 105 97 9 42 20 68 107 79 134 52 112 10 9 81 30 86 111 67 142 06 11...

Страница 217: ...r None MESSAGE RTD 1 NAME Range 8 alphanumeric characters MESSAGE RTD 1 ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm Auxiliary3 Auxiliary2 Aux2 Aux3 Auxiliary3 None MESSAGE RTD 1 ALARM TEMPERATURE 130 C Range 1 to 250 C in steps of 1 MESSAGE RTD 1 HIGH ALARM Off Range Off Latched Unlatched MESSAGE HIGH ALARM RELAYS Alarm...

Страница 218: ...TD TEMPERATURE RTD 7 10 MESSAGE RTD 1 TRIP TEMPERATURE 155 C Range 1 to 250 C in steps of 1 RTD 7 RTD 7 APPLICATION Bearing Range Stator Bearing Ambient Other None MESSAGE RTD 7 NAME Range 8 alphanumeric characters MESSAGE RTD 7 ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm Auxiliary3 Auxiliary2 Aux2 Aux3 Auxiliary3 None ...

Страница 219: ...required either for a process or additional bearings or other There are individual alarm high alarm and trip configurations for this RTD 11 RTD 11 APPLICATION Other Range Stator Bearing Ambient Other None MESSAGE RTD 11 NAME Range 8 alphanumeric characters MESSAGE RTD 11 ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm Auxil...

Страница 220: ...is disabled The RTD name may be changed if desired RTD 12 RTD 12 APPLICATION Ambient Range Stator Bearing Ambient Other None MESSAGE RTD 12 NAME Range 8 alphanumeric characters MESSAGE RTD 12 ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm Auxiliary3 Auxiliary2 Aux2 Aux3 Auxiliary3 None MESSAGE RTD 12 ALARM TEMPERATURE 60 C...

Страница 221: ...that have either an alarm or trip programmed and determine if an RTD has either a short or a very low temperature less than 50 C Any RTDs that do not have a trip or alarm associated with them will be ignored for this feature When a short low temperature is detected the assigned output relay will operate and a message will appear on the display identifying the RTD that caused the alarm It is recomm...

Страница 222: ...f Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm Auxiliary3 Auxiliary2 Aux2 Aux3 Auxiliary3 None MESSAGE UNDERVOLTAGE ALARM PICKUP 0 85 x RATED Range 0 60 to 0 99 x RATED in steps of 0 01 MESSAGE STARTING U V ALARM PICKUP 0 85 x RATED Range 0 60 to 1 00 x RATED in steps of 0 01 Enter 1 00 to turn this function off MESSAGE UNDERVOLTAGE ALARM D...

Страница 223: ...ndesirable An undervoltage of significant proportion that persists while starting a motor may prevent the motor from reaching rated speed This may be especially critical for a synchronous motor As such this feature may be used in with a time delay to provide protection for undervoltage conditions before and during starting In the event of system problems causing asymmetrical voltage conditions whe...

Страница 224: ...ement may be useful for protecting the motor in the event of a sustained overvoltage condition 5 10 3 Phase Reversal PATH SETTINGS S9 VOLTAGE ELEM PHASE REVERSAL OVERVOLTAGE OVERVOLTAGE ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm Auxiliary3 Auxiliary2 Aux2 Aux3 Auxiliary3 None MESSAGE OVERVOLTAGE ALARM PICKUP 1 05 x RAT...

Страница 225: ...rs It could also be used to load shed an entire feeder if the trip was assigned to an upstream breaker FREQUENCY FREQUENCY ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm Auxiliary3 Auxiliary2 Aux2 Aux3 Auxiliary3 None MESSAGE OVER FREQUENCY ALARM LEVEL 60 50 Range 25 01 to 70 00 Hz in steps of 0 01 MESSAGE UNDER FREQUENCY ...

Страница 226: ...on an induction motor consumes Watts and vars This condition is displayed on the 469 as Watts and vars A synchronous motor can consume Watts and vars or consume Watts and generate vars These conditions are displayed on the 469 as Watts vars and Watts vars respectively see the figure below FIGURE 5 17 Power Measurement Conventions I1 I2 I3 I4 ...

Страница 227: ...0 Hz POWER FACTOR BLOCK PF ELEMENT FROM START 1 s Range 0 to 5000 s in steps of 1 MESSAGE POWER FACTOR ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm Auxiliary3 Auxiliary2 Aux2 Aux3 Auxiliary3 None MESSAGE POWER FACTOR LEAD ALARM LEVEL Off Range 0 05 to 1 00 in steps of 0 01 Enter 1 00 to turn feature off MESSAGE POWER FAC...

Страница 228: ...MENT FROM START 1 s Range 0 to 5000 s in steps of 1 MESSAGE REACTIVE POWER ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm Auxiliary3 Auxiliary2 Aux2 Aux3 Auxiliary3 None MESSAGE POSITIVE kvar ALARM LEVEL 10 kvar Range 1 to 25000 kvar in steps of 1 MESSAGE NEGATIVE kvar ALARM LEVEL 10 kvar Range 1 to 25000 kvar in steps of ...

Страница 229: ...ions For example underpower may be used to detect loss of load conditions Loss of load conditions will not always cause a significant loss of current Power is a more accurate representation of loading and may be used for more sensitive detection of load loss or pump cavitation This may be especially useful for detecting process related problems UNDERPOWER BLOCK UNDERPOWER FROM START 0 s Range 0 to...

Страница 230: ...EVERSE POWER ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm Auxiliary3 Auxiliary2 Aux2 Aux3 Auxiliary3 None MESSAGE REVERSE POWER ALARM LEVEL 2 kW Range 1 to 25000 kW in steps of 1 MESSAGE REVERSE POWER ALARM DELAY 1 s Range 0 2 to 30 0 s in steps of 0 1 MESSAGE REVERSE POWER ALARM EVENTS Off Range On Off MESSAGE REVERSE P...

Страница 231: ...ither Newton meter or foot pound NOTE Note 1 Nm 0 738 ft lb 5 11 7 Overtorque PATH SETTINGS S10 POWER ELEMENTS OVERTORQUE Detection of a motor overtorque condition usually done to protect devices driven by the motor can be set up here The assigned relay activates when the torque measured exceeds the specified level for the specified time duration OVERTORQUE OVERTORQUE ALARM Off Range Off Latched U...

Страница 232: ...input and motor current are monitored when the 469 initiates a trip If the starter status contacts do not change state or motor current does not drop to zero after the programmed time delay an alarm occurs The time delay should be slightly longer than TRIP COUNTER TRIP COUNTER ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm...

Страница 233: ...2a contacts in series with the trip coil when the breaker is open See the following figure for modifications to the wiring and proper resistor selection If that continuity is broken a Starter Failure alarm will indicate Trip Coil Supervision FIGURE 5 18 Trip Coil Supervision 5 12 3 Demand PATH SETTINGS S11 MONITORING CURRENT DEMAND 808727A2 CDR VALUE OF RESISTOR R SUPPLY OHMS WATTS 48 VDC 125 VDC ...

Страница 234: ...rm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm Auxiliary3 Auxiliary2 Aux2 Aux3 Auxiliary3 None MESSAGE kW DEMAND LIMIT 100 kW Range 1 to 50000 kW in steps of 1 MESSAGE kW DEMAND ALARM EVENTS Off Range On Off kvar DEMAND kvar DEMAND PERIOD 15 min Range 5 to 90 min in steps of 1 MESSAGE kvar DEMAND ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxil...

Страница 235: ...160 t 0 t 10 t 20 t 30 t 40 t 50 t 60 t 70 t 80 t 90 t 100 MAGNITUDE PULSE OUTPUT POS kWh PULSE OUTPUT RELAY Off Range Off Alarm Auxiliary2 Auxiliary3 MESSAGE POS kWh PULSE OUTPUT INTERVAL 1 kWh Range 1 to 50000 kWh in steps of 1 MESSAGE POS kvarh PULSE OUT RELAY Off Range Off Alarm Auxiliary2 Auxiliary3 MESSAGE POS kvarh PULSE OUT INTERVAL 1 kvarh Range 1 to 50000 kvarh in steps of 1 MESSAGE NEG ...

Страница 236: ...te a combination of output relays The communication inactivity detection shown in Not Communicating applies to all four of the SR469 communication ports The detailed causes for Not Communicating are displayed in section S13 469 TESTING Communication Port Monitor The Loss of Communication Alarm Trip function can be programmed for Latched or Unlatched Latched The programmed output relays and target ...

Страница 237: ...T RELAY INSTRUCTION MANUAL 5 93 Unlatched The programmed output relays are activated until communication is re established Once communication is active the alarm trip condition will be cleared and the assigned output relays will deactivate ...

Страница 238: ...temperature is at 0 C 12 mA when it is 125 C and 20 mA when it is 250 C ANALOG OUTPUT 1 ANALOG OUTPUT 1 Therm Capacity Used Range See Analog Output Parameter Selection Table on page 5 95 MESSAGE THERM CAPACITY USED MIN 0 Range 0 to 100 in steps of 1 MESSAGE THERM CAPACITY USED MAX 100 Range 0 to 100 in steps of 1 ANALOG OUTPUT 2 ANALOG OUTPUT 2 Motor Load Range See Analog Output Parameter Selectio...

Страница 239: ... to 20000 V 1 1900 2500 Avg Phase Voltage 50 to 20000 V 1 1900 2500 Hottest Stator RTD 50 to 250 C or 58 to 482 F 1 0 200 Hottest Bearing RTD 50 to 250 C or 58 to 482 F 1 0 200 Ambient RTD 50 to 250 C or 58 to 482 F 1 50 60 RTD 1 to 12 50 to 250 C or 58 to 482 F 1 50 250 Power Factor 0 01 to 1 00 lead lag 0 01 0 8 lag 0 8 lead Reactive Power 50000 to 50000 kvar 1 0 750 Real Power 50000 to 50000 kW...

Страница 240: ...UT 1 MINIMUM 0 Range 50000 to 50000 in steps of 1 MESSAGE ANALOG INPUT 1 MAXIMUM 100 Range 50000 to 50000 in steps of 1 MESSAGE BLOCK ANALOG INPUT 1 FROM START 0 s Range 0 to 5000 s in steps of 1 MESSAGE ANALOG INPUT 1 ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELAYS Alarm Range Alarm Alarm Auxiliary2 Alarm Aux2 Aux3 Alarm Auxiliary3 Auxiliary2 Aux2 Aux3 Auxiliary3 None MESSAGE AN...

Страница 241: ... may be used to dictate whether the feature picks up when the measured value is over or under the level For example if a pressure transducer is to be used for a pump application program the following settings ANALOG INPUT 1 4 NAME Pressure ANALOG INPUT 1 4 UNITS PSI ANALOG INPUT 1 4 MINIMUM 0 ANALOG INPUT 1 4 MAXIMUM 500 If there is no pressure until the pump is up and running for 5 minutes and pr...

Страница 242: ...G INPUT DIFF 1 2 ANALOG IN DIFF 1 2 Disabled Range Disabled Enabled MESSAGE ANALOG IN DIFF 1 2 NAME Analog 1 2 Range 12 alphanumeric characters MESSAGE ANALOG IN DIFF 1 2 COMPARISON Diff Range Diff Abs Diff MESSAGE ANALOG IN DIFF 1 2 LOGIC 1 2 Range 1 2 1 2 2 1 MESSAGE ANALOG IN DIFF 1 2 ACTIVE Always Range Always Start Run MESSAGE A I DIFF 1 2 BLOCK FROM START 0 s Range 0 to 5000 s in steps of 1 ...

Страница 243: ... 3 4 NAME Analog 3 4 Range 12 alphanumeric characters MESSAGE ANALOG IN DIFF 3 4 COMPARISON Diff Range Diff Abs Diff MESSAGE ANALOG IN DIFF 3 4 LOGIC 3 4 Range 3 4 3 4 4 3 MESSAGE ANALOG IN DIFF 3 4 ACTIVE Always Range Always Start Run MESSAGE A I DIFF 3 4 BLOCK FROM START 0 s Range 0 to 5000 s in steps of 1 MESSAGE ANALOG IN DIFF 3 4 ALARM Off Range Off Latched Unlatched MESSAGE ASSIGN ALARM RELA...

Страница 244: ... can be of an absolute difference in units or a percentage difference The second analog input 4 for 3 4 is used as the reference value for percentage calculations The comparison logic can also be selected as one input greater than the other 3 4 or vice versa 4 3 or as absolute difference 3 4 Note that the compared analog inputs must be programmed with the same unit type prior to using this feature...

Страница 245: ...s in the 469 when the simulation mode is Simulate Fault If the simulation mode Pre Fault to Fault is selected the Pre Fault values will be substituted for the period of time specified by the delay followed by the Fault values If a trip occurs simulation mode will revert to Off Selecting Off for the simulation mode will place the 469 back in service If the 469 measures phase current or control powe...

Страница 246: ...LTAGES VLINE 1 00 x RATED Range 0 00 to 1 10 x RATED in steps of 0 01 MESSAGE PRE FAULT CURRENT LAGS VOLTAGE 0 Range 0 to 359 in steps of 1 MESSAGE PRE FAULT DIFF AMPS IDIFF 0 00 x CT Range 0 00 to 1 10 x RATED in steps of 0 01 MESSAGE PRE FAULT STATOR RTD TEMP 40 C Range 50 to 250 C in steps of 1 MESSAGE PRE FAULT BEARING RTD TEMP 40 C Range 50 to 250 C in steps of 1 MESSAGE PRE FAULT OTHER RTD T...

Страница 247: ...VOLTAGES VLINE 1 00 x RATED Range 0 00 to 1 10 x RATED in steps of 0 01 MESSAGE FAULT CURRENT LAGS VOLTAGE 0 Range 0 to 359 in steps of 1 MESSAGE FAULT DIFF AMPS IDIFF 0 00 x CT Range 0 00 to 1 10 x RATED in steps of 0 01 MESSAGE FAULT STATOR RTD TEMP 40 C Range 50 to 250 C in steps of 1 MESSAGE FAULT BEARING RTD TEMP 40 C Range 50 to 250 C in steps of 1 MESSAGE FAULT OTHER RTD TEMP 40 C Range 50 ...

Страница 248: ...the simulation modes the TEST ANALOG OUTPUT settings group may be used during startup or testing to verify that the analog outputs are functioning correctly The analog outputs can only be forced if the motor is stopped and there are no trips alarms or start blocks active When the FORCE ANALOG OUTPUTS FUNCTION is Enabled the output reflects the forced value as a percentage of the 4 to 20 mA or 0 to...

Страница 249: ...9 transmits a message it will appear in the Tx1 and Tx2 buffers In addition to these buffers there is a message that will indicate the status of the last received message 5 14 7 GR Multilin Use Only PATH SETTINGS S13 469 TESTING GE MULTILIN USE ONLY This section is for use by GE Grid Solutions personnel for testing and calibration purposes COMMUNICATION PORT MONITOR MONITOR COMM PORT Computer RS48...

Страница 250: ...mal Model curve style and overload curve settings Refer to 5 6 2 Thermal Model on page 5 40 and 5 6 3 Overload Curve Setup on page 5 41 for details When setting the Speed2 Overload Curve characteristics only the relevant settings corresponding to the overload curve style will be shown as described below Standard Overload Curves If the SELECT CURVE STYLE is set to Standard in the Thermal Model the ...

Страница 251: ...9999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 3 25 x FLA 36 6 s Range 0 5 to 99999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 3 50 x FLA 31 1 s Range 0 5 to 99999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 3 75 x FLA 26 8 s Range 0 5 to 99999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 4 00 x FLA 23 2 s Range 0 5 to 99999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 4 25 x FLA 20 5 s Range 0 5 to 99999 9 in ...

Страница 252: ...f 0 1 SPEED2 OVERLOAD SETUP SPEED2 TRIP AT 1 01 x FLA 17414 5 s Range 0 5 to 99999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 1 05 x FLA 3414 9 s Range 0 5 to 99999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 1 10 x FLA 1666 7 s Range 0 5 to 99999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 1 20 x FLA 795 4 s Range 0 5 to 99999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 1 30 x FLA 507 2 s Range 0 5 to 99999...

Страница 253: ...9 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 5 50 x FLA 12 0 s Range 0 5 to 99999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 6 00 x FLA 10 0 s Range 0 5 to 99999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 6 50 x FLA 8 5 s Range 0 5 to 99999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 7 00 x FLA 7 3 s Range 0 5 to 99999 9 in steps of 0 1 MESSAGE SPEED2 TRIP AT 7 50 x FLA 6 3 s Range 0 5 to 99999 9 in steps ...

Страница 254: ...00 to 15 00 x FLA in steps of 0 01 MESSAGE SPEED2 SAFE STALL 100 Vline 10 0 s Range 0 5 to 999 9 s in steps of 0 1 MESSAGE SPEED2 ACL INTERSECT 100 Vline 5 00 x FLA Range 2 00 to SPEED2 ISTALL 100 VLINE 0 01 in steps of 0 01 SPEED2 UNDERCURRENT BLOCK SPEED2 U C FROM START 0 s Range 0 to 15000 s in steps of 1 MESSAGE SPEED2 U C ALARM Off Range Off Latched Unlatched MESSAGE SPEED2 U C ALARM PICKUP 0...

Страница 255: ...am protection during the acceleration from Speed 1 to Speed 2 until the motor current has dropped below Speed 2 FLA Overload Pickup value or the Speed 1 2 acceleration time has expired At that point in time the Mechanical Jam feature will be enabled with the Speed 2 FLA MESSAGE SPEED SWITCH TRIP SPEED2 DELAY 5 0 s Range 1 0 to 250 0 s in steps of 0 1 Seen only if one of the digital inputs is assig...

Страница 256: ...5 112 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 5 SETTINGS ...

Страница 257: ...l values message map is shown below ACTUAL VALUES A1 STATUS MOTOR STATUS See page 6 4 MESSAGE LAST TRIP DATA See page 6 4 MESSAGE ALARM STATUS See page 6 6 MESSAGE START BLOCKS See page 6 8 MESSAGE DIGITAL INPUTS See page 6 8 MESSAGE REAL TIME CLOCK See page 6 9 MESSAGE NETWORK STATUS See page 6 9 MESSAGE END OF PAGE ACTUAL VALUES A2 METERING DATA CURRENT METERING See page 6 11 ...

Страница 258: ...UTS See page 6 15 MESSAGE PHASORS See page 6 16 MESSAGE END OF PAGE ACTUAL VALUES A3 LEARNED DATA MOTOR STARTING See page 6 27 MESSAGE AVERAGE MOTOR LOAD See page 6 27 MESSAGE RTD MAXIMUMS See page 6 28 MESSAGE ANALOG INPUT MIN MAX See page 6 29 MESSAGE END OF PAGE ACTUAL VALUES A4 MAINTENANCE TRIP COUNTERS See page 6 30 MESSAGE GENERAL COUNTERS See page 6 31 MESSAGE TIMERS See page 6 32 MESSAGE E...

Страница 259: ... more convenient since many variables may be viewed at the same time Actual value messages are organized into logical groups or pages for easy reference All actual value messages are illustrated and described in blocks throughout this chapter All values shown in these message illustrations assume that no inputs besides control power are connected to the 469 In addition to the actual value messages...

Страница 260: ...ange 0 to 100 MESSAGE ESTIMATED TRIP TIME ON OVERLOAD Never Range 0 to 10000 sec Never MESSAGE MOTOR SPEED Low Speed Range HIgh Speed Low Speed Seen if two speed motor is enabled LAST TRIP DATA CAUSE OF LAST TRIP No Trip to Date Range see below MESSAGE TIME OF LAST TRIP 09 00 00 00 Range hour min sec MESSAGE DATE OF LAST TRIP Jan 01 1995 Range Month Day Year MESSAGE MOTOR SPEED DURING TRIP Low Spe...

Страница 261: ...ff 3 4 and Loss of Comms Trip MESSAGE HOTTEST STATOR RTD RTD 1 0 C PreTrip Range 50 to 250 C or 58 to 482 F Seen only if at least 1 RTD is set as Stator MESSAGE HOTTEST BEARING RTD RTD 7 0 C PreTrip Range 50 to 250 C or 58 to 482 F Seen only if at least 1 RTD is set as Bearing MESSAGE HOTTEST OTHER RTD RTD 11 0 C PreTrip Range 50 to 250 C or 58 to 482 F Seen only if at least 1 RTD is set as Other ...

Страница 262: ...put value MESSAGE GENERAL SW A ALARM STATUS Active Range Active Latched MESSAGE THERMAL CAPACITY ALARM 100 USED Range 1 to 100 Thermal Capacity Used value is shown here MESSAGE XX XX x FLA OVERLOAD TIME TO TRIP XXXXX s Range 0 to 99999 s Shows overload level and estimated time to trip MESSAGE UNDERCURRENT ALARM Ia 85 A 85 FLA Range 1 to 5000 A 5 to 99 FLA Lowest phase current shown MESSAGE CURRENT...

Страница 263: ...Failure MESSAGE CURRENT DEMAND ALARM 1053 A Range 1 to 10000 A MESSAGE kW DEMAND ALARM 505 kW Range 50000 to 50000 kW MESSAGE kvar DEMAND ALARM 2000 kvar Range 50000 to 50000 kvar MESSAGE kVA DEMAND ALARM 2062 kVA Range 0 to 50000 kVA MESSAGE ANALOG I P 1 ALARM 201 Units Range 50000 to 50000 MESSAGE EMERGENCY RESTART Trip Still Present Range Trip Still Present Block Still Present No Trips No Block...

Страница 264: ...tive MESSAGE OVERLOAD LOCKOUT BLOCK 25 min Note Message seen only after an overload trip MESSAGE START INHIBIT BLOCK LOCKOUT TIME 20 min Range 0 to 500 min MESSAGE STARTS HOUR BLOCK LOCKOUT TIME 20 min Range 0 to 60 min MESSAGE TIME BETWEEN STARTS LOCKOUT TIME 20 min Range 0 to 500 min MESSAGE RESTART BLOCK LOCKOUT 1200 s Range 0 to 50000 sec MESSAGE WARNING 469 NOT PROGRAMMED Note Seen only if Ph...

Страница 265: ...e relay is ordered with the Ethernet T option The MAC address is a unique identifier assigned to the ethernet interface The ETHERNET STATUS actual value message indicates the status of the Ethernet link connection and diagnostic via three indicators The symbol indicates on and the symbol indicates off There is also a blinking indication MESSAGE ASSIGNABLE DIGITAL INPUT3 STATE Open Range Open Short...

Страница 266: ...r there is a duplicate IP address on the network If blinking then there is a non fatal network error Off indicates no errors DeviceNet Connection Refer to GEK 106491C 469 Communications Guide PATH ACTUAL VALUES A1 STATUS NETWORK STATUS These values appear when the relay is ordered with the DeviceNet D option NETWORK STATUS DEVICENET PORT Not powered Range Not powered operational Data size error Un...

Страница 267: ...able or MOTOR LOAD FILTER INTERVAL is enabled set to a non zero value CURRENT UNBALANCE is calculated from the ratio of phase current RMS values Phase angles are ignored With sinusoidal phase inputs this produces values about two times the values produced by calculating I2 I1 If the ratio of the smallest phase to largest phase is less than 70 a fixed value 40 CURRENT UNBALANCE is used Derating sti...

Страница 268: ...GE RTD 1 TEMPERATURE 40 C Range 50 to 250 C No RTD open shorted MESSAGE RTD 2 TEMPERATURE 40 C Range 50 to 250 C No RTD open shorted MESSAGE RTD 3 TEMPERATURE 40 C Range 50 to 250 C No RTD open shorted MESSAGE RTD 4 TEMPERATURE 40 C Range 50 to 250 C No RTD open shorted MESSAGE RTD 5 TEMPERATURE 40 C Range 50 to 250 C No RTD open shorted MESSAGE RTD 6 TEMPERATURE 40 C Range 50 to 250 C No RTD open...

Страница 269: ...uts the tachometer readout may be viewed here If no digital input is configured as tachometer in S3 DIGITAL INPUTS ASSIGNABLE INPUT1 4 the THIS FEATURE NOT PROGRAMMED flash message will appear when an attempt is made to enter this group of messages VOLTAGE METERING Vab 0 Vbc 0 Vca 0 Volts Range 0 to 20000 V Not seen if VT Connection is set as None MESSAGE AVERAGE LINE VOLTAGE 0 Volts Range 0 to 20...

Страница 270: ...enter this group of messages NOTE Note Real Power hp is converted directly from Real Power kW This display only value is not used for protection functions This message will not display more than 65535 hp regardless of the actual kW that are being metered POWER METERING POWER FACTOR 0 00 Range 0 01 to 0 99 Lead or Lag 0 00 1 00 MESSAGE REAL POWER 0 kW Range 0 to 99999 kW MESSAGE REAL POWER O hp Ran...

Страница 271: ...NT DEMAND 0 Amps Range 0 to 100000 A MESSAGE PEAK REAL POWER DEMAND 0 kW Range 0 to 99999 kW MESSAGE PEAK REACTIVE POWER DEMAND 0 kvar Range 0 to 99999 kvar MESSAGE PEAK APPARENT POWER DEMAND 0 kVA Range 0 to 65535 kVA ANALOG INPUTS ANALOG I P 1 0 Units Range 50000 to 50000 Seen only if Analog Input is programmed MESSAGE ANALOG I P 2 0 Units Range 50000 to 50000 Seen only if Analog Input is progra...

Страница 272: ...refore if a system condition would cause the current to lead the voltage by 45 the 469 relay will display such angle as 315 Lag instead of 45 Lead NOTE Note When the currents and voltages measured by the relay are zero the angles displayed by the relay and those shown by the EnerVista 469 Setup software are not fixed values The EnerVista 469 Setup software is a useful tool to view the vectors seen...

Страница 273: ...e referred to phase Van or Vab depending on the S2 SYSTEM SETUP VOLTAGE SENSING VT CONNECTION TYPE settings If set to Wye the reference quantity is Van if set to Open Delta the reference quantity is Vab If neither voltage is available the relay uses the current in Phase A as reference The phase angles are assigned and displayed as positive angles However by design the relay will always work with a...

Страница 274: ...ing angles only The following is a typical presentation of a three phase system where current lags the voltage by 30 degrees FIGURE 6 4 Current Lagging Voltage by 30 Display The phasors shown by the relay and the EnerVista 469 Setup software are a clear representation of the relationship between the system quantities as seen by the relay 806561A2 CDR Positive Angle Direction 0 469 Phase Angle Refe...

Страница 275: ...alanced three phase system and that VA VB VC and VCOM are the relay ID names for terminals G2 H1 H2 and G1 respectively When the relay is set for the Open Delta VT connection type voltages are measured at terminals G2 VA and H2 VC The voltage at terminal H1 VB is not measured however the corresponding system quantity is calculated assuming a balanced three phase system where VA VB VC 0 leading to ...

Страница 276: ... power factor of 0 95 18 2 angle When the measured phase to phase voltage is 115 V the following quantities are displayed by the relay and EnerVista 469 Setup software In the A2 METERING DATA VOLTAGE METERING menu VAB 4025 Volts VBC 4025 Volts VCA 4025 Volts AVERAGE LINE VOLTAGE 4025 Volts SYSTEM FREQUENCY 60 00 Hz In the A2 METERING DATA PHASORS menu VA PHASOR 95 8 at 0 Lag VB PHASOR 0 0 at 48 La...

Страница 277: ...am illustrates the vector diagram of our example By definition power factor is the cosine of the angle between the phase to neutral voltages and the corresponding phase current In this example 18 2 is the angle between Van and Ia Vbn and Ib and Vcn and Ic Since the relay is measuring phase phase quantities and Vab is the reference phasor the angle displayed by the relay takes into consideration th...

Страница 278: ...300 Ia 100 75 30 345 320 Ib 220 195 150 105 80 Ic 340 315 270 225 200 kW kVAR 0 kVA kW ACB Rotation 0 3 pf 72 5 lag 0 7 pf 45 lag 1 00 pf 0 lag 0 7 pf 45 lead 0 3 pf 72 5 lead Va 0 0 0 0 0 Vb Vc 60 60 60 60 60 Ia 45 15 330 285 260 Ib 285 255 210 165 140 Ic 165 135 90 45 20 kW kVAR 0 kVA kW 806559A1 CDR Phase Rotation Van Vbc Vca Ib Vbn Ia Ic Vcn Vbc Vab System Voltages Vab Vbc Vca Measured Voltage...

Страница 279: ...he angles shown are negative or lagging angles FIGURE 6 9 Typical Phasor Diagram for Wye Connection Using the same example as for the open delta connection except for the VT CONNECTION TYPE setting to Wye the following quantities are displayed by the relay and EnerVista 469 Setup software In the A2 METERING DATA VOLTAGE METERING menu VAB 4025 Volts VBC 4025 Volts VCA 4025 Volts AVERAGE LINE VOLTAG...

Страница 280: ... angle between the phase to neutral voltages and the corresponding phase current In this example 18 2 is the angle between Van and Ia Vbn and Ib and Vcn and Ic The phase to phase quantities are not shown in the A2 METERING DATA PHASORS menu and the EnerVista 469 Setup software However they are shown on the following figure FIGURE 6 10 Typical Phasor Diagram for Wye Connection The EnerVista 469 Set...

Страница 281: ...00 pf 0 lag 0 7 pf 45 lead 0 3 pf 72 5 lead Va 0 0 lag 0 lag 0 lag 0 Vb 120 120 120 120 120 Vc 240 240 240 240 240 Ia 75 45 0 315 285 Ib 195 165 120 75 45 Ic 315 285 240 195 165 kW kVAR 0 kVA kW ACB rotation 0 3 pf 72 5 lag 0 7 pf 45 lag 1 00 pf 0 lag 0 7 pf 45 lead 0 3 pf 72 5 lead Va 0 0 lag 0 lag 0 lag 0 Vb 240 240 240 240 240 Vc 120 120 120 120 120 Ia 75 45 0 315 285 Ib 315 285 240 195 165 Ic ...

Страница 282: ...MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 6 ACTUAL VALUES kW kVAR 0 kVA kW Table 6 2 Three phase Wye VT Connection ABC rotation 0 3 pf 72 5 lag 0 7 pf 45 lag 1 00 pf 0 lag 0 7 pf 45 lead 0 3 pf 72 5 lead ...

Страница 283: ...RTING CURRENT is measured 200 ms after the transition of motor current from zero to greater than overload pickup This should ensure that the measured current is symmetrical The value displayed is the average of the last 5 successful starts If there are less than 5 starts 0s will be averaged in for the full 5 starts The LEARNED STARTING CAPACITY is used to determine if there is enough thermal capac...

Страница 284: ...menu reflect the RTD names as programmed If no RTDs are programmed in S8 RTD TEMPERATURE the THIS FEATURE NOT PROGRAMMED flash message will appear when an attempt is made to enter this group of messages RTD MAXIMUMS RTD 1 MAX TEMP 40 C Range 50 to 250 C MESSAGE RTD 2 MAX TEMP 40 C Range 50 to 250 C MESSAGE RTD 3 MAX TEMP 40 C Range 50 to 250 C MESSAGE RTD 4 MAX TEMP 40 C Range 50 to 250 C MESSAGE ...

Страница 285: ...s will reflect those programmed for each input The values shown here reflect the programmed analog input names If no Analog Inputs are programmed in S12 ANALOG I O the THIS FEATURE NOT PROGRAMMED flash message appears when an attempt is made to enter this group of messages ANALOG INPUT MIN MAX ANALOG I P 1 MIN O Units Range 50000 to 50000 MESSAGE ANALOG I P 1 MAX 0 Units Range 50000 to 50000 MESSA...

Страница 286: ...0 Caused by Digital Input set as Tachometer MESSAGE OVERLOAD TRIPS 0 Range 0 to 50000 MESSAGE SHORT CIRCUIT TRIPS 0 Range 0 to 50000 MESSAGE MECHANICAL JAM TRIPS 0 Range 0 to 50000 MESSAGE UNDERCURRENT TRIPS 0 Range 0 to 50000 MESSAGE CURRENT UNBALANCE TRIPS 0 Range 0 to 50000 MESSAGE GROUND FAULT TRIPS 0 Range 0 to 50000 MESSAGE PHASE DIFFERENTIAL TRIPS 0 Range 0 to 50000 MESSAGE ACCELERATION TIM...

Страница 287: ...RIPS 0 Range 0 to 50000 MESSAGE REACTIVE POWER TRIPS 0 Range 0 to 50000 MESSAGE REVERSE POWER TRIPS 0 Range 0 to 50000 MESSAGE UNDERPOWER TRIPS 0 Range 0 to 50000 MESSAGE ANALOG I P 1 TRIPS 0 Range 0 to 50000 MESSAGE ANALOG I P 2 TRIPS 0 Range 0 to 50000 MESSAGE ANALOG I P 3 TRIPS 0 Range 0 to 50000 MESSAGE ANALOG I P 4 TRIPS 0 Range 0 to 50000 MESSAGE ANALOG 1 2 TRIPS 0 Range 0 to 50000 MESSAGE A...

Страница 288: ...ith the S1 469 SETUP INSTALLATION RESET STARTER INFORMATION settings If one of the assignable digital inputs is programmed as Digital Counter that counter measurement will appear here The counter can be reset to zero if the counter is of the incrementing type or pre set to a predetermined value using the S1 469 SETUP CLEAR DATA PRESET DIGITAL COUNTER settings 6 5 3 Timers PATH ACTUAL VALUES A4 MAI...

Страница 289: ... A 0 B 0 C 0 A Diff EV01 Range 0 to 5000 A Seen only if Phase Differential CT is set MESSAGE HOTTEST STATOR RTD 0 C EVENT01 Range 50 to 250 C no RTD Seen if at least 1 RTD is set as Stator MESSAGE HOTTEST BEARING RTD 0 C EVENT01 Range 50 to 250 C no RTD Seen if at least 1 RTD is Bearing MESSAGE HOTTEST OTHER RTD 0 C EVENT01 Range 50 to 250 C no RTD Seen if at least 1 RTD is set as Other MESSAGE AM...

Страница 290: ...EVENT01 0 Units Range 50000 to 50000 Not seen if Analog Input 1 is Disabled MESSAGE ANALOG I P 2 EVENT01 0 Units Range 50000 to 50000 Not seen if Analog Input 2 is Disabled MESSAGE ANALOG I P 3 EVENT01 0 Units Range 50000 to 50000 Not seen if Analog Input 3 is Disabled MESSAGE ANALOG I P 4 EVENT01 0 Units Range 50000 to 50000 Not seen if Analog Input 4 is Disabled Table 6 3 Cause of Events Sheet 1...

Страница 291: ... 7 High Alarm RTD 8 High Alarm RTD 9 High Alarm RTD 10 High Alarm RTD 11 High Alarm RTD 12 High Alarm Service Alarm Short Low RTD Alarm Starter Failed Alarm Tachometer Alarm Thermal Model Alarm Trip Coil Super Trip Counter Alarm Undercurrent Alarm Underpower Alarm Undervoltage Alarm Vibration Sw Alarm Volt Frequency Alarm Welded Contactor Loss of Comms Alarm OTHER 1 TRIP Relay Forced 2 AUX Relay F...

Страница 292: ...original calibration and last calibration may be viewed here 469 MODEL INFORMATION ORDER CODE 469 P5 HI A20 E Range Displays the relay order code and installed options MESSAGE 469 SERIAL NO A3050001 Range Displays the serial number of the relay MESSAGE FIRMWARE REVISION 4 00 Range Displays the firmware revision of the relay MESSAGE BOOT REVISION 3 00 Range Displays the boot software revision of th...

Страница 293: ... cause the 469 to revert back to the normal default messages When normal default messages are being displayed pressing NEXT displays the next default message immediately Example When an overload trip occurs an RTD alarm may also occur as a result of the overload and a lockout time associated with the trip The 469 automatically defaults to the A1 STATUS LAST TRIP DATA CAUSE OF LAST TRIP actual valu...

Страница 294: ... terminals have to be shorted but the passcode must also be entered If the correct passcode has been lost or START BLOCK LOCKOUTS OVERLOAD LOCKOUT BLOCK 25 min KEY IS USED TO ADVANCE THE CUR SOR ACCESS DENIED ENTER PASSCODE ACCESS DENIED SHORT ACCESS SWITCH ALL POSSIBLE RESETS HAVE BEEN PER FORMED ARE YOU SURE PRESS ENTER TO VERIFY DATA CLEARED SUCCESSFULLY DATE ENTRY OUT OF RANGE DATE ENTRY WAS N...

Страница 295: ... not stored Another attempt will have to be made with the complete information DATE ENTRY WAS OUT OF RANGE This message appears if and invalid entry is made for the DATE e g 15 entered for month DEFAULT MESSAGE HAS BEEN ADDED Any time a new default message is added to the default message list this message will appear as verification DEFAULT MESSAGE HAS BEEN REMOVED Any time a default message is re...

Страница 296: ...ngs An appropriate value may then be entered PRESS ENTER TO ADD DEFAULT MESSAGE If the ENTER key is pressed anywhere in the 469 actual value messages this message prompts the user to press ENTER again to add a new default message To add a new default message ENTER must be pressed while this message is being displayed PRESS ENTER TO REMOVE MESSAGE If the decimal key is pressed in the S1 469 SETUP D...

Страница 297: ...feature this message will appear TIME ENTRY WAS NOT COMPLETE Since the TIME settings has a special format HH MM SS S if ENTER is pressed before the complete value entered this message appears and the new value is not stored Another attempt will have to be made with the complete information TIME ENTRY WAS OUT OF RANGE If and invalid entry is made for the time e g 35 entered for hour this message wi...

Страница 298: ...6 42 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 6 ACTUAL VALUES ...

Страница 299: ...es necessary to perform a complete functional test of all the 469 hardware while also testing firmware hardware interaction in the process Since the 469 is packaged in a drawout case a demo case metal carry case in which an 469 may be mounted may be useful for creating a portable test set Testing of the relay during commissioning using a primary injection test set will ensure that CTs and wiring a...

Страница 300: ...7 2 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 7 TESTING FIGURE 7 1 Secondary Injection Test Setup ...

Страница 301: ...y is 0 5 of full scale 273 V Perform the steps below to verify accuracy Alter the following settings S2 SYSTEM SETUP VOLTAGE SENSING VT CONNECTION TYPE Wye S2 SYSTEM SETUP VOLTAGE SENSING VOLTAGE TRANSFORMER RATIO 10 00 1 Measured values should be 13 65 V Apply the voltage values shown in the table Verify accuracy of the measured values View the measured values in A2 METERING DATA VOLTAGE METERING...

Страница 302: ...to one phase only Verify accuracy of the measured values View the measured values in A2 METERING DATA CURRENT METERING 1 A Input Alter the following settings S2 SYSTEM SETUP CURRENT SENSING GROUND CT 1A Secondary S2 SYSTEM SETUP CURRENT SENSING GROUND CT PRIMARY 1000 A S2 SYSTEM SETUP CURRENT SENSING PHASE DIFFERENTIAL CT 1A Secondary S2 SYSTEM SETUP CURRENT SENSING PHASE DIFFERENTIAL CT PRIMARY 1...

Страница 303: ... in A2 METERING DATA CURRENT METERING 7 2 5 RTD Accuracy Test The 469 specification for RTD input accuracy is 2 Perform the steps below Alter the following settings S8 RTD TEMPERATURE RTD TYPES STATOR RTD TYPE 100 Ohm Platinum select desired type S8 RTD TEMPERATURE RTD 1 RTD 1 APPLICATION Stator repeat for RTDs 2 to 12 Measured values should be 2 C or 4 F Alter the resistances applied to the RTD i...

Страница 304: ... C 392 F 194 08 Ω 250 C 482 F Table 7 2 120 Ω NICKEL TEST APPLIED RESISTANCE 120 Ω NICKEL EXPECTED RTD TEMPERATURE READING MEASURED RTD TEMPERATURE SELECT ONE ____ C ____ F Celsius Fahrenheit 1 2 3 4 5 6 7 8 9 10 11 12 86 17 Ω 50 C 58 F 120 00 Ω 0 C 32 F 157 74 Ω 50 C 122 F 200 64 Ω 100 C 212 F 248 95 Ω 150 C 302 F 303 46 Ω 200 C 392 F 366 53 Ω 250 C 482 F Table 7 3 100 Ω NICKEL TEST APPLIED RESIS...

Страница 305: ...ches of all of the digital inputs and the trip coil supervision circuit View the status of the digital inputs and trip coil supervision in 167 20 Ω 100 C 212 F 207 45 Ω 150 C 302 F 252 88 Ω 200 C 392 F 305 44 Ω 250 C 482 F Table 7 3 100 Ω NICKEL TEST APPLIED RESISTANCE 100 Ω NICKEL EXPECTED RTD TEMPERATURE READING MEASURED RTD TEMPERATURE SELECT ONE ____ C ____ F Celsius Fahrenheit 1 2 3 4 5 6 7 8...

Страница 306: ...Force the analog outputs using the following settings S13 TESTING TEST ANALOG OUTPUT FORCE ANALOG OUTPUTS FUNCTION Enabled S13 TESTING TEST ANALOG OUTPUT ANALOG OUTPUT 1 FORCED VALUE 0 enter desired value in percent repeat for Analog Outputs 2 through 4 Verify the ammeter readings as well as the measured analog input readings For the purposes of testing the analog input is fed in from the analog o...

Страница 307: ...FUNCTION Enabled S13 TESTING TEST ANALOG OUTPUT ANALOG OUTPUT 1 FORCED VALUE 0 enter desired percent repeats for analog output 2 4 Verify the ammeter readings as well as the measured analog input readings View the measured values in A2 METERING DATA ANALOG INPUTS ANALOG OUTPUT FORCE VALUE EXPECTE D AMMETE R READING MEASURED AMMETERREADING mA EXPECTED ANALOG INPUT READING MEASURED ANALOG INPUT READ...

Страница 308: ...ifying operation NOTE Note The 6 SERVICE relay is failsafe or energized normally Operating the 6 SERVICE relay causes it to de energize FORCE OPERATION SETTINGS EXPECTED MEASUREMENT 4 FOR SHORT ACTUAL MEASUREMENT 4 FOR SHORT 1 2 3 4 5 6 1 2 3 4 5 6 no nc no nc no nc no nc no nc no nc no nc no nc no nc no nc no nc no nc 1 TRIP 4 4 4 4 4 4 2 AUXILIARY 4 4 4 4 4 4 3 AUXILIARY 4 4 4 4 4 4 4 ALARM 4 4 ...

Страница 309: ...THERMAL MODEL O L CURVE SETUP STANDARD OVERLOAD CURVE NUMBER 4 Any trip must be reset prior to each test Short the emergency restart terminals momentarily immediately prior to each overload curve test to ensure that the thermal capacity used is zero Failure to do so will result in shorter trip times Inject the current of the proper amplitude to obtain the values as shown Verify the trip times Moto...

Страница 310: ...e current is much smaller and negative sequence current remains relatively constant The derating formula is EQ 7 1 FIGURE 7 2 Three Phase Example for Unbalance Calculation INJECTED CURRENT 1A UNIT APPLIED VOLTAGE Ia is the reference vector INJECTED CURRENT 5A UNIT APPLIED VOLTAGE Ia is the reference vector EXPECTE D LEVEL OF POWER QUANTIT Y TOLERAN CE RANGE OFPOWER QUANTITY MEASURE D POWER QUANTIT...

Страница 311: ...ured values in A2 METERING DATA CURRENT METERING 7 3 4 Voltage Phase Reversal Test The 469 can detect voltage phase rotation and protect against phase reversal To test the phase reversal element perform the following steps INJECTED CURRENT EXPECTED UNBALANCE LEVEL MEASURED UNBALANCE LEVEL 1 A UNIT 5 A UNIT Ia 0 78 A 0 Ib 1 A 113 Ic 1 A 247 Ia 3 9 A 0 Ib 5 A 113 Ic 5 A 247 14 Ia 1 56 A 0 Ib 2 A 247...

Страница 312: ...Alter the following settings S2 SYSTEM SETUP CURRENT SENSING PHASE CT PRIMARY 1000 S6 CURRENT ELEMENTS SHORT CIRCUIT TRIP SHORT CIRCUIT TRIP On S6 CURRENT ELEMENTS SHORT CIRCUIT TRIP ASSIGN TRIP RELAYS Trip S6 CURRENT ELEMENTS SHORT CIRCUIT TRIP SHORT CIRCUIT TRIP PICKUP 5 0 CT S6 CURRENT ELEMENTS SHORT CIRCUIT TRIP INTENTIONAL S C DELAY 0 Inject current as per the table below resetting the unit a...

Страница 313: ...phase A flows into the interposing CT on the relay marked A From there the current sums with the current that is flowing from the CT on phase C which has just passed through the interposing CT on the relay marked C This summed current flows through the interposing CT marked B and from there the current splits up to return to its respective source CT Polarity is very important since the value of ph...

Страница 314: ...system that is known to be balanced simply reverse the polarity of the leads at one of the two phase CTs taking care that the CTs are still tied to ground at some point Polarity is important To illustrate the point further the following diagram shows how the current in phases A and C sum up to create phase B 808700A1 CDR A B C A B C 5 5 5 COM COM COM 808702A1 CDR 1 73 1 1 1 1 60 60 60 808701A1 CDR...

Страница 315: ...configuration will always work and unbalance will be detected properly In the event of a single phase there will always be a large unbalance present at the interposing CTs of the relay If for example Phase A was lost Phase A would read zero while Phase B and C would both read the magnitude of Phase C If on the other hand phase B was lost at the supply Phase A would be 180 out of phase with Phase C...

Страница 316: ...nt the cooling time constants will be shorter and closer to the actual thermal limit of the motor Normally motors are rotor limited during starting Thus RTDs in the stator do not provide the best method of determining cool times Determination of reasonable settings for the running and stopped cool time constants can be accomplished in one of the following manners listed in order of preference 1 Th...

Страница 317: ... see Motor Cooling on page 5 56 for details As such the thermal capacity used after 1 time constant will be 37 meaning there is enough thermal capacity available for another start Program 300 minutes 5 hours as the COOL TIME CONSTANT STOPPED settings Thus after two 2 cold or one 1 hot start a stopped motor will be blocked from starting for 5 hours Since the rotor cools faster when the motor is run...

Страница 318: ...specially designed to match the ground fault input of GE Grid Solutions motor protection relays should be used to ensure correct performance These CTs have a 50 0 025A 2000 1 ratio and can sense low leakage currents over the relay setting range with minimum error Three sizes are available with 3 inch 5 inch or 8 inch diameter windows HGF3C 808840A1 ...

Страница 319: ...CHAPTER 8 APPENDIX 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL 8 7 HGF5C 808841A1 HGF8 808842A1 ...

Страница 320: ...izes are available with 5 or 13 16 windows Various Primary amp CTs can be chosen 50 to 250 8 3 3 Phase CTs Current transformers in most common ratios from 50 5 to 1000 5 are available for use as phase current inputs with motor protection relays These come with mounting hardware and are also available with 1 A secondaries Voltage class 600 V BIL 10 kV 808709A1 CDR GCT5 GCT16 DIMENSIONS DIMENSIONS C...

Страница 321: ...CHAPTER 8 APPENDIX 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL 8 9 808712A1 CDR ...

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Страница 323: ...0x October 7 2008 1601 0122 A8 5 0x September 15 2009 1601 0122 A9 5 1x April 15 2010 1601 0122 AA 5 1x July 13 2011 1601 0122 AB 5 1x February 8 2012 1601 0122 AC 5 1x March 30 2012 1601 0122 AD 5 2x October 19 2012 1601 0122 AE 5 2x February 1 2013 1601 0122 AF 5 2x July 16 2013 1601 0122 AG 5 2x November 6 2013 1601 0122 AH 5 2x January 23 2015 1601 0122 AJ 5 2x February 3 2016 Table 8 1 Major ...

Страница 324: ...8 Update Fill in missing menu information for Network Status A 6 1 A 6 1 Update Changed warranty to 10 year warranty Table 8 3 Major Updates for 469 Manual Revision AG SECT AF SECT AG CHANGE DESCRIPTION Title Title Update Manual part number to 1601 0122 AG 2 1 3 2 1 3 Update Updated order code Discontinued Basic Display 3 2 1 3 2 1 Update Typical Wiring Diagram updated 3 2 12 3 2 12 Update RS485 C...

Страница 325: ... 469 Manual Revision AD SECT SECT AD CHANGE DESCRIPTION Title Title Update Manual part number to 1601 0122 AD Gen Update Information on Loss of Comms Trip Alarm Table 8 7 Major Updates for 469 Manual Revision AB SECT AA SECT AB CHANGE DESCRIPTION Title Title Update Manual part number to 1601 0122 AB 5 6 5 6 Update Expand Display Tables to show full readout 5 5 Correction Typographical errors 2 2 2...

Страница 326: ...d Inst O C Phase S C Timing Accuracy changes 5 11 2 5 11 2 Update Power Factor changes Table 8 10 Major Updates for 469 Manual Revision A8 SECT A7 SECT A8 CHANGE DESCRIPTION Title Title Update Manual part number to 1601 0122 A8 3 1 7 3 1 7 Revision Figure 3 11 revised 3 2 1 3 2 1 Revision Figure 3 12 revised A 3 1 A 3 1 Revision CT drawings revised Table 8 11 Major Updates for 469 Manual Revision ...

Страница 327: ... 2 14 2 14 Update Changes to ELECTROSTATIC DISCHARGE value Table 8 14 Major Updates for 469 Manual Revision A4 PAGE A3 PAGE A4 CHANGE DESCRIPTION Title Title Update Manual part number to 1601 0122 A4 3 22 3 22 Update Updated DIELECTRIC STRENGTH section Table 8 15 Major Updates for 469 Manual Revision A3 PAGE A2 PAGE A3 CHANGE DESCRIPTION Title Title Update Manual part number to 1601 0122 A3 5 47 5...

Страница 328: ...NAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 8 APPENDIX Additional changes for revision A2 were cosmetic There was no change to content Table 8 16 Major Updates for 469 Manual Revision A2 PAGE A1 PAGE A2 CHANGE DESCRIPTION ...

Страница 329: ...ipped as of 1 October 2013 GE warrants most of its GE manufactured products for 10 years For warranty details including any limitations and disclaimers see our Terms and Conditions at http s www gegridsolutions com multilin warranty htm For products shipped before 1 October 2013 the standard 24 month warranty applies ...

Страница 330: ...8 18 469 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL CHAPTER 8 APPENDIX ...

Страница 331: ... 3 PHASE WYE VTs 6 25 4 ALARM RELAY description 3 23 operating 5 37 reset mode 5 36 4 to 20mA ANALOG INPUT 3 19 5 94 5 97 5 START BLOCK RELAY description 3 23 operating 5 37 reset mode 5 36 50 0 025 CT 3 13 5 18 6 SERVICE RELAY description 3 23 reset mode 5 36 A A1 STATUS 6 4 A2 METERING DATA 6 11 A3 LEARNED DATA 6 27 A4 MAINTENANCE 6 30 A5 EVENT RECORDER 6 33 A6 PRODUCT INFO 6 36 ACCELERATION TIM...

Страница 332: ...3 4 5 99 analog in min max 6 29 analog input minimums maximums 5 26 clearing analog input data 5 16 description 3 19 5 97 difference setpoints 5 98 5 99 maximums 6 29 minimums 6 29 setpoints 5 96 specifications 2 6 testing 7 8 7 9 trip counters 6 31 ANALOG OUTPUTS description 3 19 operating 5 104 setpoints 5 94 specifications 2 7 testing 5 104 7 8 7 9 ANSI DEVICE NUMBERS 2 1 APPARENT POWER actual ...

Страница 333: ...l 5 21 monitoring 5 105 RS232 4 11 4 16 4 18 RS485 3 24 4 12 4 16 4 18 setpoints 5 11 5 21 5 105 specifications 2 14 wiring 4 11 4 12 CONTACTOR ALTERNATE WIRING 3 24 CONTROL POWER connection diagram 3 12 description 3 12 COOL TIME CONSTANTS 5 40 5 56 5 58 5 69 CORE BALANCE 5 19 CORE BALANCE GROUND CT connection 3 15 method 3 16 CTs differential 3 16 ground 3 13 3 14 5 18 ground fault 8 8 phase 3 1...

Страница 334: ... 6 15 kW 5 90 6 15 metering 6 15 period 5 91 power 5 89 6 15 specifications 2 12 DEMAND DATA CLEARING 5 16 DEMAND PERIOD 5 91 DERATING FACTOR 5 56 DESCRIPTION 2 1 DEVICE NUMBERS 2 2 DEVICENET actual values 6 10 setpoints 5 12 DIAGNOSTIC MESSAGES 6 37 DIELECTRIC STRENGTH 3 25 3 26 DIFFERENTIAL 5 66 DIFFERENTIAL CT PRIMARY 5 19 DIFFERENTIAL CTs 3 16 DIFFERENTIAL CURRENT INPUTS 3 16 DIFFERENTIAL CURR...

Страница 335: ...AY UPDATE INTERVAL 5 10 DRAWOUT INDICATOR 3 24 E ELECTRICAL INSTALLATION 3 11 EMERGENCY RESTART 5 17 5 26 6 31 ENERVISTA VIEWPOINT WITH THE 469 4 49 ENTERING TEXT 4 5 ENVIRONMENTAL SPECIFICATIONS 2 16 ESTIMATED TRIP TIME ON OVERLOAD 6 4 ETHERNET actual values 6 9 setpoints 5 11 EU DECLARATION OF CONFORMITY 8 10 EVENT RECORD actual values 6 33 6 34 cause of events 6 34 clearing 5 16 date 6 33 motor...

Страница 336: ...STARTED 1 1 GROUND CT core balance 3 15 primary 5 18 setpoints 5 18 GROUND CTs 3 14 GROUND CURRENT INPUT 2 6 3 13 GROUND CURRENT TESTING 7 4 GROUND FAULT setpoints 5 65 5 66 trip counter 6 30 GROUND FAULT CTs 8 8 GROUND FAULT CTs FOR 50 0 025 A 8 6 GROUND FAULT CTs FOR 5A SECONDARY 8 8 GROUND INSTANTANEOUS OVERCURRENT setpoints 5 65 specifications 2 9 H HELP KEY 1 10 HGF CTs 8 6 HIGH INERTIAL LOAD...

Страница 337: ...TIONAL S C TRIP DELAY 5 60 J JOGGING BLOCK setpoints 5 69 specifications 2 9 K K FACTOR 5 56 KEYPAD 4 4 help 1 10 kVA DEMAND 5 90 kvar DEMAND 5 90 kW DEMAND 5 90 L LAST TRIP DATA actual values 6 4 6 5 clearing 5 16 test switch 5 26 LATCH 3 5 LEARNED ACCLERATION TIME 6 27 LEARNED DATA 6 27 LEARNED PARAMETERS 5 26 6 27 LEARNED STARTING CAPACITY 6 27 LEARNED STARTING CURRENT 6 27 LED INDICATORS 4 2 L...

Страница 338: ... COOLING 5 56 MOTOR DERATING FACTOR 5 56 MOTOR FLA 5 18 MOTOR INFORMATION RESETTING 5 16 MOTOR LOAD actual values 6 4 6 11 6 28 average 6 28 calculation period 5 9 filter interval 5 10 last trip data 6 4 setpoint 5 14 MOTOR LOAD FILTER INTERVAL 5 9 MOTOR LOAD AVERAGE 6 27 MOTOR NAMEPLATE VOLTAGE 5 20 MOTOR RUNNING HOURS 6 32 MOTOR SPEED actual value 6 4 event recorder 6 33 MOTOR SPEED DURING TRIP ...

Страница 339: ...0 OUTPUT RELAYS 1 TRIP 3 23 2 AUXILIARY 3 23 3 AUXILIARY 3 23 4 ALARM 3 23 5 START BLOCK 3 23 6 SERVICE 3 23 alarm 3 23 assignment practices 5 7 auxiliary 3 23 description 3 23 5 36 forcing 5 37 operating 5 37 5 104 restart mode 5 36 setpoints 5 36 specifications 2 8 testing 5 104 OUTPUTS ANALOG 2 7 OVERCURRENT ground instantaneous 2 9 phase differential 2 10 specifications 2 9 OVERFREQUENCY setpo...

Страница 340: ...s 3 13 8 8 PHASE CURRENT ACCURACY TEST 7 3 PHASE CURRENT INPUTS description 3 13 specifications 2 6 PHASE CURRENT AVERAGE 6 11 PHASE DIFFERENTIAL setpoints 5 66 trip counter 6 30 PHASE DIFFERENTIAL CT 5 18 PHASE DIFFERENTIAL CT PRIMARY 5 18 PHASE DIFFERENTIAL OVERCURRENT 2 10 PHASE REVERSAL setpoints 5 80 specifications 2 11 trip counter 6 31 PHASE ROTATION SETTINGS 5 21 PHASE SEQUENCE 5 20 PHASE ...

Страница 341: ...ECTION FEATURES 2 3 PROXIMITY PROBE 3 18 PULSE OUTPUT 5 91 R REACTIVE POWER consumption specifications 2 12 metering 6 14 setpoints 5 84 specifications 2 13 REACTIVE POWER DEMAND 6 15 REACTIVE POWER TRIPS 6 31 REAL POWER consumption specifications 2 12 metering 6 14 specifications 2 13 REAL POWER DEMAND 6 15 REAL TIME CLOCK 5 13 6 9 REDUCED RTD LEAD NUMBER 3 20 REDUCED VOLTAGE START auxiliary A st...

Страница 342: ...rVista 750 760 Setup 4 18 connections 4 11 setpoints 5 11 RS485 COMMUNICATIONS see also COMMUNICATIONS and SERIAL PORTS configuring with EnerVista 469 setup 4 16 4 18 configuring with EnerVista 750 760 Setup 4 18 connections 4 12 description 3 24 wiring diagram 3 25 RTD actual values 6 12 6 28 alternate grounding 3 22 ambient 5 72 5 76 bearing 5 72 5 75 bias 5 58 5 59 clearing RTD data 5 16 descri...

Страница 343: ...ngs example 1 30 S3 DIGITAL INPUTS setpoints 5 26 settings example 1 32 S4 OUTPUT RELAYS 5 36 S5 THERMAL MODEL setpoints 5 38 settings example 1 33 S6 CURRENT ELEMENTS setpoints 5 60 settings example 1 33 S7 MOTOR STARTING setpoints 5 68 settings example 1 35 S8 RTD TEMPERATURE setpoints 5 72 settings example 1 35 S9 VOLTAGE ELEMENTS 5 78 SAFE STALL CURVES 5 53 SAFE STALL TIME 5 48 5 109 SAMPLE AP...

Страница 344: ...IT TRIP setpoints 5 60 SIMULATE FAULT 5 35 SIMULATE FAULT FAULT 5 35 SIMULATE PRE FAULT 5 35 SIMULATION MODE 5 101 SINGLE LINE DIAGRAM 2 1 SINGLE PHASING 5 63 SINGLE VT OPERATION 5 20 SLAVE ADDRESS 5 11 5 12 SOFTWARE entering setpoints 4 22 hardware requirements 4 11 installation 4 13 loading setpoints 4 33 overview 4 10 saving setpoints 4 35 serial communications 4 16 4 18 SPECIFICATIONS 2 6 2 13...

Страница 345: ...PHASE SEQUENCE 5 20 T TACHOMETER actual value 6 13 event record 6 33 pre trip value 6 4 setpoints 5 32 specifications 2 11 TACHOMETER TRIPS 6 30 TC USED MARGIN 5 68 TEMPERATURE 6 12 TEMPERATURE DISPLAY 5 9 TERMINALS locations 3 9 specifications 2 16 terminal list 3 9 TEST ANALOG OUTPUT 5 104 TEST OUTPUT RELAYS 5 104 TEST SWITCH 5 26 TESTS analog input output 7 8 differential current 7 4 digital in...

Страница 346: ...2 9 TIME 5 13 6 9 6 39 TIME BETWEEN STARTS 5 26 5 69 5 70 6 32 TIME OF EVENT 6 33 TIME SYNCHRONIZATION 5 13 TIME CURRENT CURVES 5 39 TIMERS 6 32 TORQUE event record 6 34 metering 5 86 overtorque 5 87 setup 5 86 specifications 2 12 TORQUE ALARM MESSAGE 6 7 TORQUE SETUP 5 86 TRACE MEMORY 5 9 TRIP COIL SUPERVISION 2 7 5 88 5 89 6 9 7 7 TRIP COUNTER actual values 6 30 6 31 clearing 5 16 setpoints 5 88...

Страница 347: ...ER 5 85 UNDERPOWER TRIPS 6 31 UNDERVOLTAGE setpoints 5 78 specifications 2 10 trip counter 6 30 UNPACKING THE RELAY 1 1 UPGRADING FIRMWARE 4 35 V VARIABLE FREQUENCY DRIVES 5 21 VIBRATION 3 19 VIBRATION SWITCH 2 11 VIBRATION SWITCH ALARM 5 31 VIBRATION SWITCH TRIP 5 31 VOLTAGE DEPENDENT OVERLOAD acceleration curves 5 51 5 52 curves 5 47 custom curves 5 51 5 52 description 5 41 5 47 5 53 protection ...

Страница 348: ... 5 20 VT CONNECTION TYPE 5 20 VT RATIO 5 20 VTs 3 phase open delta 6 22 3 phase wye 6 25 connection type 5 20 open delta 3 17 phasors 6 19 see VOLTAGE TRANSFORMER single VT operation 5 20 wye 3 17 W WARRANTY 8 16 WAVEFORM CAPTURE capture trace 5 35 trace memory buffers 5 9 trace memory trigger 5 9 WITHDRAWAL 3 5 WYE VTs 3 17 Z ZERO SEQUENCE 3 14 5 19 ...

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