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Overcurrent Protection Configuration

 

24

 

 

5 Overcurrent Protection 

Configuration

 

5.1

Protective Functions Menu

 

The SB Energy-Comm trip unit provides configurable overcur-
rent protection functions that can trip the SB circuit breaker.
The user can easily accommodate load changes and other
protection requirements while still assuring optimum coordina-
tion. A standard feature of the SB Energy-Comm trip unit is
RMS current sensing. As opposed to peak-current sensing,
RMS sensing measures the true heating potential of the current
waveform. This allows more accurate overcurrent protection
and eliminates nuisance tripping that results from harmonic
distortion of the current waveform. The current transformers
(CTs) in the circuit breaker provide operating power as well as
current level data. When the circuit breaker is carrying load
currents, the trip unit requires no external connections or con-
trol power to perform the basic overcurrent protective func-
tions.

To set the overcurrent protection, from the 

 

Main Menu

 

, select

 

Protective

 

 and press Enter 

. This displays the 

 

Protective

Menu

 

, which includes the functions for setting the characteris-

tics of the time-current curve.

Long time overcurrent protection is always enabled. For the
models with ground fault protection, this protective function is
similarly always enabled. The short time and instantaneous
protective functions can be enabled or disabled from the

 

System Configuration

 

 menu; either the short time or instanta-

neous protection must be enabled. Refer to Short Circuit Pro-
tection in 

 

4.2, Setting System Configuration Parameters.

 

The 

 

Time Current Curve

 

, which displays a graphical represen-

tation of the time-current curve is available only on trip units
with software version 3.00 or later.

 

Figure 5.1

 

 shows a typical time-current curve that summarizes

the protection. The settings in the 

 

Protective Menu

 

 allow the

user to define this overall curve by selecting parameters that
define parts of that curve. The overall curve is then a summa-
tion of the individual parts. This gives the user the maximum
flexibility in defining the appropriate protection for a specific
application.

 

Figure 5.1 

 

Time-Current Curve

For each part of the curve, there is a set of adjustable parame-
ters. When each set of parameters is adjusted, if security is
inactive, press Escape 

 and the verification screen appears. 

Press Enter 

 to accept the changes (accept the settings you

have entered). If you want to quit without saving these
changes, press Escape 

.

Each of the menu options available for the 

 

Protective Menu

 

 is

discussed next. Note that chapters 6 and 7 are devoted
entirely to alarms and protective relays, respectively.

10000

1000

100

10

1

0.1

T

ime (Seconds)

Current (Amperes)

Long Time Delay

Long Time Pickup

Short Time Pickup

Instantaneous

Short Time Delay

Ground Fault

Содержание Sentron SB TP01 Series

Страница 1: ...s Sentron Systems Breaker Energy Communicating Trip Unit Information and Instruction Guide Bulletin IPIM 2208B ...

Страница 2: ... or operation of the equipment and the hazards involved In addition this person has the following qualifications a is trained and authorized to de energize clear ground and tag circuits and equipment in accordance with established safety practices b is trained in the proper care and use of protective equipment such as rubber gloves hard hat safety glasses or face shields flash clothing etc in acco...

Страница 3: ...me Fault Protection 26 Instantaneous Fault Protection 27 Ground Fault Protection 27 Ground Fault Sensing Scheme 28 Alarm Setpoints 29 Alarms 29 Overcurrent 30 Ground Overcurrent 30 Overcurrent Demand 31 Total Harmonic Distortion 31 Over Real Power 32 Over Power Demand 32 Over Reactive Power 33 Over Apparent Power 33 Under PF Lagging 34 Over PF Leading 34 Extended Protective Relaying 35 Overview 35...

Страница 4: ...tions in equipment nor to provide for every possible contingency to be met in con nection with installation operation or maintenance Should further information be desired or should particular problems arise which are not cov ered sufficiently for the purchaser s purposes the matter should be referred to the local Siemens sales office The contents of the instruction manual shall not become part of ...

Страница 5: ...rip unit When the circuit breaker is closed and current is flow ing the trip unit requires no external connections or control power to perform its circuit protection functions External control power is required for metering communications and protective relaying functions as well as setting adjustments and viewing the display A standard feature on all Siemens trip units is RMS current sens ing As ...

Страница 6: ... Comm trip unit also collects real time data that can be reported via the Siemens ACCESS System or directly to a personal computer through its serial port For any of several functions the SB Energy Comm trip ip unit can also send an alarm to a remote indicator Figure 1 2 Functional Block Diagram Meter Communications Microprocessor Protective Microprocessor Liquid Crystal Display Keypad Test Connec...

Страница 7: ...it breaker For a list of available rating plugs refer to Table 2 2 on page 13 The interrupting rating of the SB breaker is specified on the front cover label and is further identified by the use of a color bar at the top left of the breaker label Several short circuit interrupting ratings are available to meet spe cific applications The interrupting ratings and short time ratings are given in Tabl...

Страница 8: ...igation through the displays to allow the local programming of settings and viewing of those settings The Up and Down arrow keys are used for scrolling through a menu of choices displayed on the LCD The Enter key is used to select a choice or move between two selections The Escape key is used to exit from a given menu to the next higher level Table 1 2 UL 489 Symmetrical RMS Amperes Interrupting R...

Страница 9: ...de its enable disable status and associated pickup and delay When enabled a function causes the trip unit s relay contact to close if its alarm limit pickup is exceeded for the time specified by the delay Assuming that no other alarm conditions exist a time stamped entry is also made to the event log at this time Restrictions are discussed in Section 1 10 2 If the alarm condition ends the relay co...

Страница 10: ... describes all these functions Your particular model may or may not have all the features discussed in this manual Table 1 4 Features by Model Number Features Models SBxxTP01 SBxxTP01G SBxxTP02 SBxxTP02G Integral Keypad and Display Voltage Current Waveform Displays Protective Functions Long Time Short Time Instantaneous Metering Functions Volts Amps PF Frequency Watts VARs VA Crest Factor Ampand W...

Страница 11: ...og for metered quantities This includes the mini mum and or maximum values detected for currents voltages leading and lagging power factors instantaneous VA and VARs crest factors frequency kW and amp demand as well as total harmonic distortion Like the trip log the min max log may be viewed and cleared at the trip unit or through communications The min max log resides only in RAM and is lost if c...

Страница 12: ...r national standard All settings are factory preset to the minimum values 2 3 Selecting a Power Source The SB Energy Comm trip unit depends either on power from the current transformers CTs or independent control power The protective functions use the power from the CTs the meter ing and communications require separate control power from an external power supply This requirement allows communica t...

Страница 13: ...Installation 9 Figure 2 1 SB Energy Comm Wiring to External Power Supply PT Module and ACCESS System ...

Страница 14: ...e contacts are open Refer to the breaker s information and instruction guide for the proper operating pro cedure Figure 2 4 Breaker Indicators Follow these steps to install the trip unit into an SB circuit breaker 1 To install the trip unit the front cover of the circuit breaker must first be removed This is done by removing the eight Phillips head screws that hold the front cover in place 2 Lift ...

Страница 15: ... unit being the proper device for an SB circuit breaker check the alignment of the pins and holes A built in rejection scheme will prevent the installation of a trip unit into a breaker for which it is not intended This scheme consists of two pins on the support plate on which the trip unit will set into two matching holes in the bottom of the trip unit If the holes in the bottom of the trip unit ...

Страница 16: ...it into the holes in the bottom of the trip unit 8 Secure the trip unit Secure the trip unit in place with the retaining screw located at the top of the device Torque 6 to 8 in lbs If the trip unit top is not secured correctly the interlock will stop the breaker from closing 9 Replace the front cover Replace the front cover and the eight 8 front cover screws Torque 6 to 8 in lbs ...

Страница 17: ...on of a rat ing plug into a trip unit for which it is not intended Follow these steps to install the rating plug Note Prior to inserting or removing a rating plug check to see that the circuit breaker is in the Open position The circuit breaker should always be in the Open position when a rating plug is not in the trip unit Take precautions to prevent damage to equipment protected by the breaker p...

Страница 18: ... it will snap into place without excessive force Do not force the rating plug into place Conversely to remove a rating plug squeeze the clips located on the sides of the plug and pull the plug from the plug receptacle Since the plug is held in place by compression some force will be required to remove the plug Do not close the circuit breaker with the rating plug removed from the trip unit 5 Repla...

Страница 19: ...ct several devices on the SEAbus network to a personal computer 2 9 Removing the Trip Unit from a Systems Breaker Follow the steps below when removing the trip unit from an SB Encased Systems Breaker Before starting to remove the trip unit set the circuit breaker to the Open and Discharged positions If the circuit breaker is in the Closed position the breaker will trip when the trip unit is remove...

Страница 20: ...trip unit 2 10 Starting Up 1 Remove the screws from the seals to access the display interface keypad The screws are on both sides of the display shield as shown below 2 Turn on external 120 VAC control power The Protective light flashes when the protection functions are operational The Meter light flashes when the metering functions are operational Now you are ready to learn how to use the front p...

Страница 21: ...larm and protective relay functions can also be viewed and modified If the device is powered and left idle for five minutes it will go into idle display mode and cycle between several informational screens repeatedly See Section 3 5 Idle Display Mode for descriptions of the screens displayed in idle display mode To end the scrolling of these screens press Escape and the previously selected menu ap...

Страница 22: ... Figure 3 3 Figure 3 3 Key Functions 3 3 Menu Structure The user interface displays provide the functions and status information They are organized in a menu structure with the Main Menu being the highest level of organization Refer to the appendix Menu Structure for additional details about menu organization On start up the Main Menu is the first display The Main Menu lists the major groupings of...

Страница 23: ...rd protection The View Data menu places the SB Energy Comm trip unit into idle display mode For each menu the user can view the present settings and can change any of the parameter settings if the user has proper security clearance 3 4 Front Panel LEDs At the top of the front panel are four light emitting diode LED indicators which provide information about the operation of the trip unit and the s...

Страница 24: ...Alarms refer to Chapter 6 Alarm Setpoints 3 5 Idle Display Mode When the SB Energy Comm trip unit is on and left idle for five minutes the front panel display switches to idle display mode and displays its configuration and metered data in real time Selecting View Data from the main menu also causes the trip unit to enter idle display mode In idle display mode the trip unit cycles through its mete...

Страница 25: ...be set using the System Configuration menu These parameters include System Frequency System Wiring Configuration Phase Sequence Potential Transformer PT Rating Short Circuit Protection External Neutral Sensing Neutral CT System Frequency To select the frequency of AC power begin from the System Configuration menu select Frequency and press Enter Select 50 or 60 Hz by pressing the Up or Down Arrow ...

Страница 26: ...equence con figuration or disable the phase sequence alarm if desired Thirty seconds after the last key press if the alarm is still active the phase sequence alarm screen will again be displayed Potential Transformer Rating To inform the trip unit which potential transformer PT is used in your system select PT Rating from the System Configura tion menu The following screen appears Make sure the PT...

Страница 27: ...e Set Time and Date screen first appears the HH value is highlighted 1 Press the Up or Down Arrow keys for each value until the desired value displays 2 Press Enter to accept this value and move to the next value When you have completed the time settings the first value month MM in the date settings will be high lighted You will set the date in months MM days DD and years YY Set the date in the sa...

Страница 28: ...larly always enabled The short time and instantaneous protective functions can be enabled or disabled from the System Configuration menu either the short time or instanta neous protection must be enabled Refer to Short Circuit Pro tection in 4 2 Setting System Configuration Parameters TheTime Current Curve which displays a graphical represen tation of the time current curve is available only on tr...

Страница 29: ...s current is the amplitude of the current in amperes above which the trip unit will pick up To set these values for the long time fault protection from the Protective Menu select Long Time and press Enter The following screen appears The protection may be set to one of several values of continu ous current from 50 to 100 of the rating plug For example for a 2000A rating plug the long time continuo...

Страница 30: ...press Enter to go to the DELAY parameter or press Escape to accept these settings The short time delay setting is used to set the time interval the breaker will wait before initiating a trip command at the current value selected on the short time pickup setting This setting has two modes of operation a fixed delay and an inverse I2 t ramp delay To set the mode press Enter until the I2T and the FIX...

Страница 31: ... and the Delay value The pickup value is used to set the level of ground current at which circuit interruption will be initiated Together with the delay value this setting allows selective tripping between main and feeder or other down stream breakers In compliance with the National Electric Code NEC 230 95 no trip point setting exceeds 1200A A complete listing of the available ground fault pickup...

Страница 32: ... without a ground fault condi tion the vector sum of the phase currents being monitored by the trip unit is zero This is also true for overcurrent phase to phase fault and phase unbalance conditions When a phase to ground fault occurs the vector sum of the phase currents is directly proportional to the magnitude of the fault The trip unit s microprocessor uses this vector sum data from the interna...

Страница 33: ...ect Protective Functions From the Protective Menu select Alarms The Alarms Menu is displayed Each alarm limit has three parameters Pickup value Delay value Alarm enabled or disabled Setting these alarms involves enabling the alarm setting the limit above which the trip unit considers alarmable pickup and setting the time interval the device will wait before setting off the alarm delay The pickup a...

Страница 34: ...ion similar in function to the Ground Fault Monitor SB GFM accessory module for the standard SB trip unit Note that this ground overcurrent alarm feature is available on all SB Energy Comm trip units with or without ground fault protection and is independent of the ground overcurrent tripping function To alarm on ground overcurrent 1 From the Alarms Menu select Ground Over Current 2 Select a picku...

Страница 35: ... value is displayed press Enter 4 Highlight the ALARM box and press the Up Arrow key so that a checkmark appears in the box 5 Press Escape to leave the menu and press Enter at the verification screen to accept the new settings and leave the menu 6 5 Total Harmonic Distortion To alarm on total harmonic distortion 1 From the Alarms Menu select Total Harmonics 2 Select a pickup value by pressing the ...

Страница 36: ...leave the menu and press Enter at the verification screen to accept the new settings and leave the menu 6 7 Over Power Demand To alarm on over power kilowatt demand 1 From the Alarms Menu select Over kW Demand 2 Select a pickup value by pressing the Up or Down Arrow keys until the value is at the desired level For a complete list of pickup values refer to the appendix Parameter Settings Press Ente...

Страница 37: ...s Escape to leave the menu and press Enter at the verification screen to accept the new settings and leave the menu 6 9 Over Apparent Power To alarm on over apparent power kilovolt amps 1 From the Alarms Menu select Over kVA 2 Select a pickup value by pressing the Up or Down Arrow keys until the value is at the desired level You can choose between ten values based on the frame rating Press Enter 3...

Страница 38: ...ettings and leave the menu 6 11 Over PF Leading To alarm on over power factor leading 1 From the Alarms Menu select Over PF Leading 2 Select a pickup value by pressing the Up or Down Arrow keys until the value is at the desired level Press Enter Values appear in the following table 3 Select a delay time by pressing the Up or Down Arrow keys until the value is at the desired level Possible time del...

Страница 39: ...If set to alarm only close the relay output contact which may be connected to a visible or audible alarm or both Store a record of the event in the event log including the time and date of the alarm Communicate with any supervisory device that an alarm condition was reached To find settings for the protective relay functions 1 From the Main Menu select Protective Functions 2 From the Protective Me...

Страница 40: ...equal to the delay time setting To alarm or to trip and alarm on current unbalance 1 From the Protective Relays Menu select Current Unbal ance The Alarm checkbox is highlighted but alarming has not yet been set 2 To enable alarming press the Up Arrow key then press Enter If you have enabled alarming a checkmark appears and the pickup settings are highlighted 3 Select a pickup value by pressing the...

Страница 41: ...tting To alarm or to trip and alarm on current unbalance 1 From the Protective Relays Menu select Voltage Unbal ance The Alarm checkbox is highlighted but alarming has not yet been set 2 To enable alarming press the Up Arrow key then press Enter If you have enabled alarming a checkmark appears and the pickup settings are highlighted 3 Select a pickup value by pressing the Up or Down Arrow keys unt...

Страница 42: ...ckbox is highlighted but alarming has not yet been set 2 To enable alarming press the Up Arrow key then press Enter If you have enabled alarming a checkmark appears and the pickup settings are highlighted 3 Select a pickup value by pressing the Up or Down Arrow keys until the value is at the desired level The pos sible pickup values depend on the rating of the breaker see the table in the appendix...

Страница 43: ...elect Under Fre quency The Alarm checkbox is highlighted but alarming has not yet been set 2 To enable alarming press the Up Arrow key then press Enter If you have enabled alarming a checkmark appears and the pickup settings are highlighted 3 Select a pickup value by pressing the Up or Down Arrow keys until the value is at the desired level The pos sible pickup values are 1 2 3 4 5 7 9 12 Hz below...

Страница 44: ... reverse Power Demand kW Demand Apparent Power kVA Reactive Power kVAR Reactive Energy kVARhr forward and reverse All metered parameters are RMS values up to at least the 19th harmonic of a 60 Hz system Trip unit accuracy for current is measured to 2 over the range of 10 to 200 of the rated value The flashing green LED on the front panel of the trip unit indi cates that the metering functions are ...

Страница 45: ...med once per second The conventions for power flow and power polarity are shown in Figure 8 1 and Figure 8 2 respectively Figure 8 1 Power Flow Conventions Figure 8 2 Power Polarity Conventions To view the calculated values select Metering Data from the Metering Menu and then select the second choice W VAR VA and CF The following display appears The forward real power kW reactive power kVAR and ap...

Страница 46: ...at has been cal culated since demand was last cleared If the number of demand periods is greater than 1 then a sliding window aver age calculation is performed The maximum demand is the largest average demand over the specified number of demand periods Each time a new maximum demand value is calculated the oldest calculation is discarded and the new one is used to get a new average For example if ...

Страница 47: ...splayed on Front Panel 8 5 1 Monitoring Power Quality Power quality has become a foremost concern for power utili ties and their customers because of an increasing presence of induced harmonic voltages and currents in industrial commer cial and residential electrical systems Harmonics are typically generated within a power distribution system by nonlinear loads variable frequency drives UPS system...

Страница 48: ... for the neutral line is shown with only the current data in Amps A Viewing the waveforms remotely from a personal computer requires the Siemens WinPM or SB Win software This software can be used to upload waveform data from the trip unit to a personal computer and display the waveforms on the com puter screen WinPM software automatically performs a Fast Fourier Transformation on each waveform It ...

Страница 49: ...e Main Menu select Metering and then select Reset Meter Data The following display appears Choose Energy Registers to reset the real time energy values Use the Up Arrow to move from No to Yes and the Down Arrow to move from Yes to No The check shows whether the data will be reset or not When finished press Escape Similarly to reset the accumulated demand values choose Demand from the Reset Meter D...

Страница 50: ...he Event Log records automatically the 10 most recent alarm events To view the events from the Log Menu select View Event Log The log appears showing the most recent event first to see the other events press the Up or Down Arrow key for previous and next events in the log The following is an example of an event log screen The event is date and time stamped The date provides the month day and year ...

Страница 51: ... input parameters Minimum and maximum values are also provided for all demand measurements The trip unit Min Max Log can be used to determine such val ues as the highest loading on a plant or feeder peak demand voltage operating ranges worst case power factor highest VAR loading for capacitor sizing etc Minimum and maximum values for each parameter are logged independently with a date and time sta...

Страница 52: ...lues of the line to line A B voltage The various data values for power included in the min max logs include instantaneous and demand values From the Min Max Data Menu select Power The following menu appears The maximum values for power are given for both forward and reverse power To reset this log select Reset Min Max Log from the Log Menu Press the keypad arrow buttons until the Yes box is checke...

Страница 53: ... must be less than 50 feet in length for hard wired connections Connection using modems via dedicated or dial up telephone lines is also possible Siemens SBWin Software is used to optionally configure trip unit settings via a laptop PC using the serial port on the front of the trip unit To configure the EIA 232 serial port baud rate select RS232 Baud Rate from the Communications Menu The following...

Страница 54: ...e SB Energy Comm trip unit and all other connected devices are configured for the required com munications standard EIA 232 or EIA 485 The next step is to program the communication parameters of the SB Energy Comm trip unit and all other connecteddevices The Address and Baud Rate parameters of the SB Energy Comm trip unit can be programmed via the front panel The address is the number that will un...

Страница 55: ...PLC DCS EMS and SCADA systems Protocol converters are also available from Siemens to connect to many different PLC and supervisory protocols All data and configuration registers are accessible via commu nications All configuration and control operations have embedded password protection Contact Siemens for complete documentation on the SB Energy Comm trip unit SEAbus communications protocol or to ...

Страница 56: ...hese tests the trip unit simulates an overcurrent or ground fault signal from the CTs and checksthe circuitry that initiates a trip The overcurrent with trip and ground fault with trip tests actually trip the breaker while the other two phase and GF tests only check that the trip unit generates the signal to trip When the Alarm Test is initiated the alarm LED will be turned on for four seconds and...

Страница 57: ...er the total trips caused by electrical faults is reported as 10 The difference between the total operations and the total operations caused by faults 11 in this example would be operations that were caused by the operator directly from the manual interface on the breaker 11 4 Interruption Level The Interruption Level counter lists the number of operations of the breaker that is the number of time...

Страница 58: ...ke this Once the password is set or changed the screen looks like this 12 2 Enable Security With the security enabled the user cannot change any of the settings without first entering the password If the operator attempts to change a setting such as the protective relay or alarms and then presses Escape to leave the particular parameter setting screen the following message displays The operator mu...

Страница 59: ...o increment or decrement the number When you press the Up Arrow key once the number incre ments to 0 When you have entered the desired digit press Enter to highlight the next digit 3 Press the Up or Down Arrow until the desired digit is displayed Then press Enter to highlight the next digit Follow this procedure for all the digits in the password Press Escape followed by Enter when finished 4 The ...

Страница 60: ...o Continue and you will be asked to enter another catalog number 5 If a valid catalog number has been entered the TS 31 will prompt for the Breaker switch settings The TS 31 will respond with Enter continuous current setting in Note Energy Com Trip Units display current in Amps therefore Amps must be converted to Current Setting Enter the Rating Plug Value in Amps Enter long time delay in seconds ...

Страница 61: ...essed C when asked Enter test to perform see instructions you will first be prompted by Current Transformer Test Press ENTER to continue or A to abort and then by the phase to test One of the following mes sages will then appear depending on the test results CT Resistance Test Phase X Passed Press ENTER to exit test and continue CT Resistance Test Phase X Failed Press ENTER to exit test and contin...

Страница 62: ...lue than those listed the above message will appear Test exceeds capability of TS 31 Press ENTER to continue If this message occurs it means that a test requires more cur rent to run than the TS 31 can produce Unit too hot please wait Running many successive high current long time tests may over heat the test set It will protect itself from thermal damage by asking the user to wait and allowing th...

Страница 63: ...al Harmonics THD Over kW Over kW Demand Over kVAR Over kVA Under PF Lag Over PF Lead Overcurrent Protection 4 Long Time Short Time Instantaneous Ground Fault models SBxxTP01G SBxxTP02G Extended Protective Relaying 8 Neutral Overcurrent Current Unbalance Voltage Unbalance Reverse Power Under Voltage Over Voltage Over Frequency Under Frequency ...

Страница 64: ... is set to either a fixed delay illustrated or an inverse I 2 t ramp function delay calibrated at one half the frame ampere rating In Amperes in Multiples of Rating Plug Value Ir 1 2 3 4 5 6 7 Amperes in Multiples of Rating Plug Value In 1 Continuous Ampere Setting Region The allowable continuous operating amperes is set to a percentage of the rating plug value Note that the maximum continuous amp...

Страница 65: ...n Multiples of Rating Plug Value In Continuous Amps set at 70 of In Long Time Delay set at 25 sec cali brated at 6 times In Short Time Pickup set at 2 5 times In Short Time Delay set at 0 2 sec I2 t cali brated at 8 times In Instantaneous Pickup set at 10 times In Ground Fault Pickup set at 30 of Max Rating Ground Fault Delay set at 0 4 sec I2 t calibrated at 0 5 Max Rating ...

Страница 66: ...Time Fixed Overcurrent Protection curves and parameter screens 1 0 1 0 01 0 1 1 10 100 10 100 1000 10 000 xIn T ime in Seconds Long Time Delay Continuous Operating Current 1 0 1 0 01 0 1 1 10 100 10 100 1000 10 000 xIn Time in Seconds Long Time Delay Short Time Pickup Short Time Fixed Delay Continuous Operating Current ...

Страница 67: ...neous Overcurrent Protection curves and parameter screens 1 0 1 0 01 0 1 1 10 100 10 100 1000 10 000 xIr Time in Seconds Long Time Delay Short Time Pickup Short Time I2 t Delay Continuous Operating Current xIn 1 0 1 0 01 0 1 1 10 100 10 100 1000 10 000 xIr Time in Seconds Long Time Delay Instantaneous Pickup Continuous Operating Current xIn ...

Страница 68: ...Short Time Fixed and Instantaneous Protection curves and parameter screens Instantaneous Override 1 0 1 0 01 0 1 1 10 100 10 100 1000 10 000 xIr Time in Seconds Long Time Delay Short Time Pickup Short Time Fixed Delay Continuous Operating Current xIn ...

Страница 69: ...on curves and parameter screens for units with Ground Fault Protection 0 1 0 1 1 1 10 10 100 100 xIr xIr 10 10 1 1 0 1 0 1 0 01 0 01 Time in Seconds Time in Seconds Ground Fault Fixed Delay Ground Fault I2 t Delay Ground Fault Pickup Ground Fault Pickup xIn xIn ...

Страница 70: ... 390 420 450 480 510 540 570 600 700 350 420 455 490 525 560 595 630 665 700 800 400 480 520 560 600 640 680 720 760 800 1000 500 600 650 700 750 800 850 900 950 1000 1200 600 720 780 840 900 960 1020 1080 1140 1200 1600 800 960 1040 1120 1200 1280 1360 1440 1520 1600 2000 1000 1200 1300 1400 1500 1600 1700 1800 1900 2000 2500 1250 1500 1625 1750 1875 2000 2125 2250 2375 2500 3000 1500 1800 1950 2...

Страница 71: ...9600 11200 12800 14400 2000 1000 1500 2000 2500 3000 4000 5000 6000 7000 8000 9000 1200 1800 2400 3000 3600 4800 6000 7200 8400 9600 10800 1600 2400 3200 4000 4800 6400 8000 9600 11200 12800 14400 2000 3000 4000 5000 6000 8000 10000 12000 14000 16000 18000 2500 1600 2400 3200 4000 4800 6400 8000 9600 11200 12800 14400 2000 3000 4000 5000 6000 8000 10000 12000 14000 16000 18000 2500 3750 5000 6250 ...

Страница 72: ...1600 2400 3200 4800 6400 8000 9600 11200 12800 16000 19200 2000 1000 1500 2000 3000 4000 5000 6000 7000 8000 10000 12000 1200 1800 2400 3600 4800 6000 7200 8400 9600 12000 14400 1600 2400 3200 4800 6400 8000 9600 11200 12800 16000 19200 2000 3000 4000 6000 8000 10000 12000 14000 16000 20000 24000 2500 1600 2400 3200 4800 6400 8000 9600 11200 12800 16000 19200 2000 3000 4000 6000 8000 10000 12000 1...

Страница 73: ...2000 2300 2500 3000 4000 5000 2500 2875 3125 3750 5000 6250 3000 3450 3750 4500 6000 7500 3200 3680 4000 4800 6400 8000 4000 4600 5000 6000 8000 10000 5000 5750 6250 7500 10000 12500 Max Rating A Ground Fault Protection Pickup Settings and Ground Overcurrent Alarm Settings Pickup A 400 80 100 120 160 200 240 280 320 360 400 800 160 200 240 320 400 480 560 640 720 800 1200 240 300 360 480 600 720 8...

Страница 74: ...Rating Plug A Pickup A 200 120 140 160 180 190 200 225 135 157 180 202 213 225 250 150 175 200 225 237 250 300 180 210 240 270 285 300 350 210 245 280 315 332 350 400 240 280 320 360 380 400 450 270 315 360 405 427 450 500 300 350 400 450 475 500 600 360 420 480 540 570 600 700 420 490 560 630 665 700 800 480 560 640 720 760 800 1000 600 700 800 900 950 1000 1200 720 840 960 1080 1140 1200 1600 96...

Страница 75: ...40 210 280 350 800 40 80 120 160 240 320 400 1000 50 100 150 200 300 400 500 1200 60 120 180 240 360 480 600 1600 80 160 240 320 480 640 800 2000 100 200 300 400 600 800 1000 2500 125 250 375 500 750 1000 1250 3000 150 300 450 600 900 1200 1500 3200 160 320 480 640 960 1280 1600 4000 200 400 600 800 1200 1600 2000 5000 250 500 750 1000 1500 2000 2500 Alarm Delay Settings Time s 1 2 3 5 10 20 30 60...

Страница 76: ... Over kW Reverse Power Over kW Demand kW 400 20 40 60 80 100 125 150 175 200 225 250 275 300 325 350 375 400 425 800 40 80 120 160 200 250 300 350 400 450 500 550 600 650 700 750 800 850 1200 60 120 180 240 300 375 450 525 600 675 750 825 900 975 1050 1125 1200 1275 1600 80 160 240 320 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 2000 100 200 300 400 500 625 750 875 1000 1125 12...

Страница 77: ...3500 3750 4000 4250 5000 250 500 750 1000 1250 1550 1875 2200 2500 2800 3125 3450 3750 4050 4375 4700 5000 5300 Max Rating A Over kVAR kW 400 20 40 60 80 100 125 150 175 200 225 250 275 300 325 350 375 400 425 800 40 80 120 160 200 250 300 350 400 450 500 550 600 650 700 750 800 850 1200 60 120 180 240 300 375 450 525 600 675 750 825 900 975 1050 1125 1200 1275 1600 80 160 240 320 400 500 600 700 ...

Страница 78: ... Password Logs Communications Settings Metering Data Protection Settings Relays Settings Alarms Settings Configuration Settings Demand Data Waveforms HarmonicData MeteredData Min MaxLog EventLog TripLog Front Panel Men Structure ...

Страница 79: ... the field device For directly addressed devices such as the SB Energy Comm trip unit the Devt byte is simply the device s unique slave address For devices using indirect addressing Devt takes on the value of the single byte device type code assigned to a specific type of device The device s unique slave address is included later as the first byte in the Data field Message Type Msgt Byte The messa...

Страница 80: ... of the breaker based on its maximum current rating The SB breaker has five frame sizes Each breaker frame size has a range of available breaker current ratings breaker rating The current rating of the breaker SB breaker ratings vary from 400 A to 5000 A It is set by the rating plug breaker serial number S N A five digit number entered in the trip unit that uniquely identifies its associated break...

Страница 81: ... that is a constant value regardless of the magnitude of the overcurrent frame size See Breaker Frame Size G GF ground fault protection ground fault mode switch The switch on the side of the trip unit that selects the ground fault sensing scheme either Residual all three phases added or Ground Return ground fault protection Protection against shorts to ground ground overcurrent alarm An alarm acti...

Страница 82: ...the trip unit when the system exceeds a specified current demand setting overcurrent alarm The alarm signal from the trip unit when the system exceeds a user specified current setting overcurrent protection Protection provided by the trip unit when a line current exceeds a user specified value Available forms of overcurrent protection are instantaneous short time and long time over power demand al...

Страница 83: ...ows RS 232 communications to a personal computer short time Overcurrent protection that is activated after a brief delay This is for higher levels of overcurrent activity than the long time protective function ST Short Time protection supervisory device A device that can remotely configure read back check the configuration of and poll real time data from field devices Supervisory devices display t...

Страница 84: ...d electrical distribution and communi cations software designed for personal computers Through com munications drivers WinPM software collects and displays real time data from ACCESS field devices WinPM also monitors and displays historical data minimum and maximum data and wave form data In addition WinPM can deliver its data to other com patible Windows applications in real time through dynamic ...

Страница 85: ...n 33 over KW demand option 32 over KW menu option 32 over amp demand option 31 pf lagging 34 pf leading 34 total harmonics option 31 B Baud Rate 50 changing 50 setting 50 Breaker See Circuit Breaker C Change Password Menu Option 54 55 Circuit Breaker defined 76 frame sizes 3 introduction 1 serial number S N 23 53 Circuit Breaker Operations 52 faults recorded 53 number of 53 overview 3 testing 52 C...

Страница 86: ...l Power Supply 8 77 F Fault Counter 53 77 Fault Counter Menu Option 53 Faults 53 by type of protection 53 defined 77 number recorded 53 Field Interchangeable Rating Plugs 3 Fixed Delay 77 Frame Sizes See Circuit Breaker Frame Sizes Front Panel Display 17 availability of real time and accumulated data 17 custom menus and graphical displays 17 liquid crystal display 17 viewing the trip log 17 Front ...

Страница 87: ...min max log 7 47 trip log 6 46 Long Time and Instantaneous Overcurrent Protection Time Characteristics Curve 63 Long Time and Short Time Fixed Overcurrent Protection Time Characteristic Curve 62 Long Time and Short Time I2t Overcurrent Protection Time Characteristics Curve 63 Long Time Fault Protection 25 defined 78 time characteristic curve 62 Long Time Menu Option 25 Long Time Short Time Fixed a...

Страница 88: ...er Power Factor Pickup Settings 72 Over Reactive Power Condition 33 Over Real Power Condition 32 Over Voltage 78 Over Amp Demand Menu Option 31 Overcurrent Alarm 78 settings 69 Overcurrent Condition 1 30 Overcurrent Demand Condition 31 alarm settings 70 Overcurrent Protection Configuration 24 defined 78 ground fault sensing scheme 28 protective functions menu 24 RMS current sensing 24 security ina...

Страница 89: ...u 35 PT Module 8 defined 79 illustration of 8 primary inputs 8 rating 21 79 rating setting 22 selecting 8 settings 8 R Rating Plugs 13 and ampere ratings 13 and pick up values 13 available ampere values 13 installing 13 removing 14 Real time Energy Values 45 resetting 45 Rejection Scheme 10 Remote Communications 49 Remote Open Menu Option 51 Remote Operation 51 79 Removing the Trip Unit 15 Reset D...

Страница 90: ... protective LED 20 System Configuration 21 at power up 21 defined 79 setting other device parameters 23 setting system configuration parameters 21 setting time and date 21 view config menu 21 viewing 21 System Configuration Menu 18 21 System Configuration Parameters 21 external neutral sensor neutral CT 21 potential transformer PT rating 21 short circuit protection 21 system frequency 21 system wi...

Страница 91: ...ode 20 log menu 19 main menu 18 menu screens 17 menu structure 18 metering menu 19 operations menu 19 parameter setting screens 18 protective menu 18 security menu 19 system configuration menu 18 view data menu 19 V View Config Menu 21 View Data Menu 19 View Settings 25 screen abbreviations 25 View Settings Menu Option 25 Viewing Protection Settings 25 Voltage Balance See Phase Balance Voltage Unb...

Страница 92: ...964 4114 3333 Old Milton Parkway www sea siemens com Alpharetta GA 30005 sales salesoffices html Siemens Energy Automation Inc Bulletin IPIM 2208B Siemens is a registered trademark of Siemens AG Supercedes 4 5 2 A Specifications are subject to change without notice 2 5M1299SP Printed in U S A ...

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