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Arbiter Systems Portable Power Sentinel 933A, Руководство по эксплуатации

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9.6

Error Analysis

All identified sources of error in the 933A have been quantified using worst-
case manufacturers’ performance data. These have then been combined
using a root-sum-of-squares (RSS) method to yield a performance estimate.
Effects due to initial calibration, measurement noise, temperature, and
aging are all included.

The reason for using RSS analysis is beyond

the scope of this paper.

However, we have found in our many years’

experience building calibration instruments that this method yields the
most realistic estimate of actual worst-case performance, provided that
numerous errors contribute significantly to the overall performance (i.e.,
no one error dominates), and provided that worst-case actual data is used
for the analysis.

The error analysis, used for the 933A power or energy measurements, is
shown in Table 9.1. Similar analyses have been performed for the other
functions of the instrument, and include most of the same factors shown
here.

Temperature Errors, 0-50

◦

C

Error, PPM

Current Input, resistor TCR

63

Voltage Input, resistor ratio

50

Voltage Reference (x2)

50

Cal. Source, resistor ratio (x2)

25

Time Stability, 1 year

−

Current Input, resistor

25

Voltage Input, resistor ratio

<

20

Voltage Reference (x2)

36

Cal. Source, resistor ratio (x2)

<

40

Measurement Noise

10

Total RSS Error, Basic

117

Calibration Errors

−

Cal. Artifact, Rotek MSB-001A

50

Traceability to National Standards

50

Total Error, RSS

136

Specification (0.05%)

500

Table 9.1: Power/Energy Error Analysis

131

Содержание Portable Power Sentinel 933A

Страница 1: ... INPUT CURRENT MODULE A B C 20 Arms MAXIMUM Model 933A TM Portable Power Sentinel Model 933A TM Portable Power Sentinel TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY Arbiter Systems Inc Paso Robles CA 93446 U S A www arbiter com ...

Страница 2: ...1 Paso Robles CA 93446 805 237 3831 Website www arbiter com mailto techsupport arbiter com mailto sales arbiter com Definition This manual describes the Model 933A Portable Power Sentinel Synchro nized Power Quality Meter and PSCSV software Firmware and Firmware Updates This manual was created based on version 1 12 of the main DSP program dated 18 February 2010 To display the firmware date press D...

Страница 3: ...a service facility designated by Arbiter Systems Buyer shall prepay all shipping charges to Arbiter Systems and Arbiter Systems shall pay shipping charges incurred in returning the product to Buyer However Buyer shall pay all shipping charges duties and taxes for products returned to Buyer in a country other than the United States of America THE WARRANTY SET FORTH HEREIN CONSTITUTES THE ONLY WARRA...

Страница 4: ...tort or other legal theory FOR THE FASTEST POSSIBLE SERVICE PLEASE PROCEED AS FOLLOWS 1 Notify Arbiter Systems Inc specifying the instrument model number and serial number and giving full details of the difficulty Service data or instrument return authorization will be provided upon receipt of this information 2 If instrument return is authorized forward prepaid to the manufac turer If it is deter...

Страница 5: ...g 933A Data Chapter 6 PSCSV Basics Chapter 7 Triggers and Event Recording Chapter 8 Specifications Chapter 9 Functional Description Chapter 10 Connection Diagrams Appendix A Glossary Appendix B Uploading New Firmware Appendix C CE Mark Certification Copyright Arbiter Systems Incorporated September 2015 All rights reserved International copyright secured PD0031100H Reorder number AS0093900 v ...

Страница 6: ...4 6 Universal Test Plug Current Lead Set 811AT 7 1 4 7 Universal Test Plug Current Lead Set 811CT 7 1 4 8 Universal Test Plug Current Shunt 7 1 4 9 Adjustable Bail 8 1 4 10 400 Amp 20 1 Precision CT 8 1 4 11 Clamp on Current Probes for the 933A 9 1 4 12 Low Current Modules 9 1 4 13 GPS Antenna Module 10 1 4 14 Auxiliary I O Module 11 1 5 Safety Information 12 1 5 1 Definitions 12 1 5 2 Terminology...

Страница 7: ...ction Key 23 2 4 3 Setup Configuring the 933A 24 2 4 4 Five Soft Keys 24 2 4 5 Display Lighting Key 25 2 4 6 Cursor Keypad Enter Key 25 2 4 7 Numeric Keypad 26 2 4 8 Log Key 26 2 4 9 Review Key 26 2 4 10 Print Key 26 2 4 11 Hold Key 27 2 4 12 933A Status Indicators 27 2 5 PSCSV Software 29 2 5 1 USB or RS 232C 29 2 5 2 Connecting 29 2 5 3 Configuring 30 2 5 4 Downloading Data 30 2 6 Bitmapped File...

Страница 8: ...nic Results 50 4 4 1 Graphical Harmonics 50 4 4 2 Tabular Harmonics 50 4 5 Waveform Display 51 4 5 1 Magnify Waveforms 52 4 6 V I Tabulation 52 4 6 1 Show Sequence 53 4 6 2 Show Ratio 53 4 6 3 Show Impedance 53 4 7 Power Tabulation 54 4 7 1 Power Calculations 54 4 8 Power Quality 55 4 8 1 Min Max 55 4 8 2 Flicker Information 56 4 9 Energy Tabulation 57 4 10 Phasor Display 58 4 11 Basic Data List 5...

Страница 9: ... Second Data 73 5 5 3 Power Quality Event Record Example 74 5 5 4 Waveform Data 75 6 PSCSV Basics 77 6 1 Introduction 77 6 1 1 PSCSV Features 77 6 1 2 Linking 77 6 2 Windows Menus and Toolbars 78 6 2 1 Main Window 78 6 2 2 Menu Definitions 79 6 2 3 Toolbar and Button Definitions 81 6 2 4 Connecting with the 933A 84 6 2 5 Configuring the 933A 85 6 2 6 Configuring Measurement Parameters 88 6 2 7 Oth...

Страница 10: ... 4 1 Capture Method and Features 112 7 4 2 High Speed Waveform Capture 112 7 4 3 How Much Data do I Record 113 7 4 4 Event Capture Example 113 7 5 Auxiliary I O Module 115 7 5 1 Auxiliary I O Module Description 115 7 5 2 Configuring Event Inputs 115 7 5 3 Configuring Relays 117 7 5 4 General Relay Setup Procedure 119 7 6 Configuring Triggers with PSCSV 119 7 6 1 User Triggers 120 7 6 2 Power Quali...

Страница 11: ... Measurements 138 9 20 Phase Balance 138 9 21 Load Balance 139 9 22 Flash Memory and Event Logging 139 9 23 Optional Contacts Event Inputs 140 9 24 Serial Channels 141 9 25 Triggering in the Model 933A 141 9 26 Detecting Oscillatory Transients and Other Anomalies 142 10 Connection Diagrams 145 10 1 1P2W1E Direct Connection 146 10 2 1P2W1 5E Direct Connection 147 10 3 1P3W2E Direct Connection 148 1...

Страница 12: ...Factor 160 A 8 KYZ Pulse Metering 160 A 9 Kp Register Scale Factors 160 A 10 Linking 161 A 11 RMS K 161 A 12 RMS THD 161 A 13 TFTP 161 A 14 THD F 162 A 15 THD T 162 B Uploading New Firmware 163 B 1 Obtaining the Latest Firmware 163 B 2 Uploading Procedure 164 C CE Mark Certification 167 C 1 Introduction 167 xii ...

Страница 13: ...escription 17 2 3 Voltage and Current Inputs 19 2 4 Display Key Menus 23 2 5 Setup Key Menus 24 2 6 Five Soft Keys 24 2 7 Brightness Contrast Control 25 2 8 Numeric and Cursor Keypads 25 2 9 Status Indicator Definitions 27 3 1 Setup Key Display 33 3 2 Input Setup Menu 34 3 3 Custom Input Configuration 35 3 4 Clock Setup 36 3 5 RS 232 Setup 39 3 6 Autolog Setup 40 3 7 Review Log Data 41 3 8 CT PT S...

Страница 14: ...view Screen 62 5 2 Review Log Data 65 5 3 Review Display Selection 65 5 4 Phasor Record Review 66 5 5 Review All Logged Records 67 5 6 Reviewing Records 69 5 7 Selecting Records 69 5 8 Reviewing Power Quality Records 70 5 9 Download Event Screen PSCSV 933 71 5 10 Selecting Events to Download 71 5 11 Downloading User Records with Progress 72 5 12 Viewing Event Records 73 5 13 Downloading Per Second...

Страница 15: ...red Waveforms 112 7 12 Captured Event Waveform 113 7 13 Captured Event One Second Record 114 7 14 Event Input Setup Active 116 7 15 Event Input Setup Inactive 117 7 16 Relay Setup 117 7 17 Relay Trigger Reference 119 7 18 User Trigger Setup using PSCSV 120 7 19 Power Quality Trigger Detail 121 10 1 1P2W1E Direct Connection 146 10 2 1P2W1 5E Direct Connection 147 10 3 1P3W2E Direct Connection 148 1...

Страница 16: ...B 3 Uploader Progress Window 165 B 4 Successfully Uploaded File Information 166 xvi ...

Страница 17: ...s 9 1 Power Energy Error Analysis 131 9 2 Signal Functions Available for Triggering 143 9 3 Trigger Channel Parameter Summary 32 Channel 144 9 4 Schulz Laios Transient Detector Algorithm Control 6 Channel 1 144 xvii ...

Страница 18: ...xviii ...

Страница 19: ...ed between two 128 MB flash cards One memory card receives data at the highest sampling rate directly from the DSP for waveform data storage and the other memory card stores the more accurate standard data after processing To enhance portable operation the Model 933A has an internal Nickel Metal Hydride NiMH battery It also has a standard IEC 320 line power inlet for normal operation and for batte...

Страница 20: ...essory Ordering Part Number CT Input Module AS0074100 Country specific AC power cord P01R P12R Safety ground lead with clip 812H Modular DB 9 to RJ 11 adapter AP0007700 Operation Manual AS0093900 Figure 1 1 933A with Accessories 2 ...

Страница 21: ...cy Includes Min Max values and Average Harmonic Measurement out to the 50th harmonic in both graphical and tabular format Waveform analysis including high speed waveform capture Sophisticated Triggering from the DSP and external signals Power quality energy phasor combined measurement viewing Optional current modules for low range seven channel measurement Auxiliary I O Module for timing external ...

Страница 22: ... silicone wire is highly recommended where safe operation is required with the possibility of high current through faults Silicone is nonflammable and will not emit toxic or irritating fumes at extreme temperatures or under overload conditions For most applications our Santoprene insulated test lead wire is a cost effective alternative to silicone offering most of the same advantages at a price wh...

Страница 23: ...ons where high energy faults are un likely For high energy applications see the Model 815AT Three Phase Fused Safety Voltage Probe Lead Set 1 4 3 Three Phase Voltage Lead Set 813BT The 813BT is identical in construction to the 813AT except that this lead set is assembled with 16 AWG silicone insulated lead wire Silicone is our premier test lead wire Highly flexible over a wider temperature range 7...

Страница 24: ...d a Velcro lead strap Figure 1 3 816AT A phase Current Lead Set 1 4 5 3 Phase Spade Lug Current Lead Set 916CT Identical to the 816AT the 816CT is constructed with silicone insulated lead wire instead of Santoprene insulated lead wire Silicone is our premier test lead wire Highly flexible over a wider temperature range 70 to 150 C 100 to 300 F than any other flexible insulation material with excel...

Страница 25: ...Phase Universal Test Plug Current Lead Set 1 4 7 Universal Test Plug Current Lead Set 811CT Identical to the 811AT the 811CT is constructed with silicone insulated lead wire instead of Santoprene insulated lead wire 1 4 8 Universal Test Plug Current Shunt Designed to allow indirect current measurement using a clamp on current probe with the universal test plug adapter Clamp the current probe over ...

Страница 26: ...ng the two fastening knobs Figure 1 5 933A Case Bail Assembly 1 4 10 400 Amp 20 1 Precision CT The Arbiter Systems Inc Model 09311A 20 1 Auxiliary Current Transformer extends the outstanding accuracy features and performance of the Model 933A Portable Power Sentinel by increasing the current input capability to 400 Amperes Due to the careful design of the Model 09311A Auxiliary CT overall accuracy...

Страница 27: ... with 933A 02 or 933A 03 because of their greater sensitivity 1 4 12 Low Current Modules Two low current input modules are available for both current output and voltage output CT s Each has two ranges a high range up to 1 2 Arms or 2 4 Vrms and low range up to 50 mA rms and 100 mV rms These two modules are very similar except for the input connectors The 933A 02 order no AS0097800 has two sets of ...

Страница 28: ...e antenna module receives power from the 933A through the cable assembly The same cable assembly communicates time and position data via RS 485 to the 933A If connected before power up the Model 933A automatically recognizes the GPS module and sets the internal clock on the Model 933A to the correct time If the GPS module is connected after power up use the manual programming function to synchroni...

Страница 29: ... sets of relay contacts two Form C mechanical contacts and one solid state contact KYZ rated Event Input Configuration See page 115 for information on setting up the Event Inputs in the External I O Module Relay Contact Configuration See page 117 for information on setting up the three relay contacts in the External I O Module Figure 1 8 External I O Module and Cable Assembly 11 ...

Страница 30: ...e manual 1 5 2 Terminology The terms Isolated or Electrically Floating are used in this manual to indicate a measurement in which the Model 933A is not connected to earth ground through the ground terminal on the front panel The term Grounded in this manual refers to a measurement in which the Model 933A is connected to an earth ground Ground Lug The purpose of the ground lug is to connect the cha...

Страница 31: ...nd will not be connected Do not use the Safety Ground connector on the front panel as a voltage or current input connection point Use extreme caution when clamping the current probe s around non insulated conductors or buss bars Never use the current probe on circuits rated higher than 600 Vrms in overvoltage category III CAT III or EN IEC61010 1 Keep your fingers behind the finger guard Do not us...

Страница 32: ...ded and in Chapter 6 entitled PSCSV Basics 2 2 Powering the Model 933A 2 2 1 Operation with the AC Power Cord The Model 933A can be operated from an AC outlet or from an internal rechargeable battery pack To operate with the AC power cord 1 Plug the power cord into the AC outlet see External Power under Specifications 2 Connect the power cord to the 933A 3 Press the ON OFF key to turn on the 933A ...

Страница 33: ...the outlet and the 933A Power OFF the 933A and charge for at least 5 hours A battery charge level indicator is visible as part of the Status Indicators in most of the data viewing screens The level of charge is indicated by the dark color in the battery symbol The battery symbol in the screen shot below indicates that the charge level of the internal battery is full Warning When operating the 933A...

Страница 34: ... BATTERY STATUS Values listed under BATTERY STATUS are for factory use when trouble shooting a problem with the unit You may be asked to report these values if you suspect a battery problem Figure 2 1 Battery and Flash Status Screen 2 3 Controls and Connections Figure 2 2 depicts the Model 933A s front panel identifying the main functional groups of keys connectors and display 16 ...

Страница 35: ...Figure 2 2 Front Panel Description 17 ...

Страница 36: ...let power receptacle with fuse compartment 2 3 3 Chassis Ground A ground lug is located in the upper right portion of the front panel This terminal is connected to the instrument chassis and also to the safety ground lead of the AC power connector When the Model 933A is operated with the power line cord connected the chassis of the instrument will be connected to the safety ground for the AC outle...

Страница 37: ...ges at inputs A B and C The 933 does not directly measure Vac or Vbc 2 3 5 Current Input Module 20 Arms 933A 01 The Model 933A 01 Current Module has three inputs A B and C for use in AC current measurement Each of the inputs uses a pair of five way binding posts and has a maximum continuous current capability of 20 amps rms Peak current is 40 Arms maximum See Figure 2 3 below For information on al...

Страница 38: ...st you with setting up and using these features 2 3 7 GPS Timing Signals To use the Global Positioning System GPS as the phase reference for synchronizing the 933A you must have the Arbiter GPS module connected to the GPS connector located on the 933A front panel Also the GPS module must be locked to the GPS Since the GPS receiver and antenna are housed in the same external module it receives powe...

Страница 39: ...ink to the 933A Use PSCSV to maximize the operation of the 933A While most features are available from the front panel keys use PSCSV to configure features and also to download data The Model 933A can also send a single bitmapped file to a terminal or computer running a terminal program by pressing the Print key For more information on downloading bitmapped data see Bitmapped File Downloading at t...

Страница 40: ... solid state contact Connect wiring to the module using the screw terminal strip connectors 2 3 11 IEC 320 Power Inlet Connector To provide a connection to a wide range of AC and DC power inlet sources the 933A has one IEC 320 Power Inlet Connector AC sources include voltages between 85 to 264 Vac at 47 to 63 Hz and DC sources from 110 to 275 Vdc A small door at the bottom of the connector contain...

Страница 41: ...s change with function 2 4 1 On Off Key Quickly press and release the On Off key to switch the power to the 933A on Press for approximately 1 2 second and release to power off This helps prevent you from inadvertantly powering off the Model 933A 2 4 2 Display Selection Key Press the DISPLAY key to select the type of data you want to view on the 933A display This includes the active signal s connec...

Страница 42: ...er a set time interval For accurate low currents measurements configure the 933A with one of the low current modules see Sections 1 4 12 and 3 8 Figure 2 5 Setup Key Menus Chapter 3 covers all of the setup and configuration features that control how the 933A operates This includes the type of measured electrical system setting up the internal clock setting up the serial RS 232 port configuring the...

Страница 43: ...control over the backlight intensity and contrast See Figure 2 7 Figure 2 7 Brightness Contrast Adjustment Auto Off and Backlight Life Expectancy Note Backlight life expectancy is about 1000 hours Therefore it is good to use the Auto Off feature to prolong the use of the backlight If you do intend to use the Display ON feature it would be wise to turn it off at the end of a sustained period of use...

Страница 44: ...rded data go to Chapter 5 Autolog recording record type A Pressing the LOG button record type K User Triggers record type T Trigger with up down arrow indicating that the trigger is active inactive Power Quality Triggers includes high speed waveform records T Triggered from optional External I O Module T Review Key Selections Press the number of the record displayed 0 9 to select and view specific...

Страница 45: ...recorded in flash memory 2 4 12 933A Status Indicators A set of status indicators located in the lower left corner of the 933A display describe the instrument operating modes including time and date These symbols appear when viewing any data except waveform in the Measurement or Hold Mode Figure 2 9 below provides definitions for each of these indicators Figure 2 9 Status Indicator Definitions Bat...

Страница 46: ... the HOLD key to alternate between the Measurement Mode and Hold Mode The Hold Mode freezes the display and displays the current data at the time that you press the HOLD key During the Measurement Mode the indicator in the meter symbol is moving Date and Time The 933A status indicators also provide you with the current Date Day of Week and Time In free running mode you must manually set the date a...

Страница 47: ...he internal clock time and date will be set automatically 2 5 PSCSV Software PSCSV software is an included accessory with the 933A It was developed by Arbiter Systems to assist you in configuring the 933A for managing and downloading logged data While most features are accessible from the front panel some are only available with PSCSV See PSCSV Basics in Chapter 6 and Triggers and Event Recording ...

Страница 48: ...ettings then you would press the SETUP key and 2 Serial Setup Adjust the settings and go to step 2 2 Open a terminal program of choice and make sure that the port settings agree with those from step 1 above Change them if necessary 3 Set the 933A to read the desired information on the display 4 Set the terminal program to Transfer the file via Xmodem Receive This is done with slight differences be...

Страница 49: ...ransfer XMODEM Receive 1 A file Save window should appear next Type in the name with a bmp extension 2 Make sure that CRC and Binary are selected and click Open 3 The SaveAs window should disappear and a new download window should appear 4 Press the PRINT key and you should see values that indicate that bytes are being transferred up to about 9 kB and disappear 31 ...

Страница 50: ... window appears select the location for the new file capture and choose Xmodem Now click the Receive button and type in a file name with a bmp extension 2 Press the PRINT button on the 933A and wait for the transfer process to finish 3 Normally it takes at least 20 to 30 seconds for the file to begin transferring when you will actually see some bytes changing that indicate a transfer is taking pla...

Страница 51: ...he user and 933A will begin with these two keys From the SETUP key you will be able to configure all of the 933A functions Press the Setup key to control the basic configuration of the 933A Using the numeric keys press the number to the left to configure the desired function These are depicted in Figure 3 1 Figure 3 1 Setup Key Display 33 ...

Страница 52: ...ect the input type a Use the UP DOWN arrow keys to select the Input Configura tion Type and press the Enter key to make the selection b Using the number keypad press the number corresponding to the desired Input Configuration e g 0 3Ph4W3E 3 Press the SAVE SETTING soft key to save the changes and return to the DISPLAY SELECTION menu 4 Otherwise press the NEXT soft key to proceed to the Custom Inpu...

Страница 53: ... locate and select the Input signal s Frequency Mode Bandwidth Frequency Reference and Phase Reference 3 When finished press the SAVE SETTING soft key returning you to the DISPLAY SELECTION menu 4 Press the BACK soft key if you want to return to the initial Input Configuration Menu Synchrophasors For synchrophasor measurement you must select Absolute under Phase Ref For viewing phasors on the 933A...

Страница 54: ...ng 2 synchronized to the GPS and 3 synchronized to IRIG B For a complete list of specifications please see Chapter 8 Free Running Clock time is based on the internal oscillator with no external timing input for stabilization Clock time depends on initial setup with a characteristic drift of less than 1 second per day Synchronized to an External IRIG B signal Uses an IRIG B signal from an external ...

Страница 55: ... Press SETUP then select 1 Clock Time Set to access the internal clock setup menus 2 TIME ZONE If necessary press the UP or DOWN key to adjust the Local Offset to your time zone 3 DST Preference Press the NEXT ENTRY soft key and press the UP or DOWN key to adjust the Daylight Saving Time to your preference OFF ON Auto USA Auto EUR Auto AUSS Auto AUST Auto NZEL Custom 4 YEAR Press the NEXT ENTRY so...

Страница 56: ...cting an external IRIG B timing signal be sure that the source clock is transmitting UTC and IEEE 1344 mode ON This is because the 933A will add the Local Offset including sign to the time received from the source clock and needs the calendar year For example if you are located in the Pacific Time Zone of North America the Local Offset would most likely be 8 hours If the external clock is sending ...

Страница 57: ...cribed below for specific port settings use the cursor keys and Enter key to select the desired values 1 Press the SETUP key and then choose 2 Serial Setup To exit press either the DISPLAY or the SETUP key 2 Select the Baud Rate and press the Enter key 3 Select the Length word length and press the Enter key 4 Select the number of Stop Bits and press the Enter key 5 Select the Parity and press the ...

Страница 58: ...g on November 29th at 9 30 01 a m The starting screen at the left indicates no date and time and the AUTO LOG ENABLE soft key is vacant The completed configuration shown on the right in Figure 3 6 indicates a start time stop time with a total of 100 records To Configure Autolog Operation 1 Press SETUP 3 AutoLog Setup 2 Press the AUTO LOG START soft key and set the date and time by selecting Minute...

Страница 59: ...ch new record stored AL appearing within the Status Indicators indicates logging activity Autolog indication is described in Figure 2 9 Figure 3 7 Review Log Data To Access Recorded Data 1 Press REVIEW key SHOW LOG soft key 2 Press REVIEW SELECTIONS soft key SHOW AUTO LOG soft key This sorts Autolog data from other logged data 3 Press the number keypad corresponding to the index number at the left...

Страница 60: ...8 CT PT Setup Menu Setting up CT PT Values 1 Press the Setup key and choose 4 CT PT Setup 2 Use any of the cursor keys to select the desired value e g A PHASE CT RATIO The rectangle will surround the chosen value and it will be described in large letters in the lower portion of the display 3 Use the number keys to enter the CT ratio or phase offset and press ENTER to install 4 If the value is nomi...

Страница 61: ...he YEAR soft key and UP DOWN arrows to adjust the value for the next occurring 4 Press the MONTH soft key and UP DOWN arrow keys to adjust the starting month 5 Press the DAY soft key and the UP DOWN arrow key to adjust the starting Day of Week 6 Press the HOUR MINUTE soft key and the UP DOWN arrow key to adjust the starting hour and minute 7 Press the EXIT ADJUST soft key to return to the previous...

Страница 62: ...ted harmonics To Setup the Current Range Sensitivity 1 Press the Setup key and choose 6 Current Setup 2 Press the CHANGE CHANNEL A CHANNEL B CHANNEL C and CHANNEL N soft keys individually to toggle any or all of the channels to the preferred range high or low current 3 Press END MODIFY soft key and SAVE SETTINGS to save the changes made to Current Module Settings 4 Press the EXIT soft key to leave...

Страница 63: ...3 11 Low Current Module Setup Menus 3 9 1 Installing To configure either the 933A 02 or the 933A 03 you will need to replace the current module already installed in the 933A with the 933 02 or 933 03 The expected current and voltage ranges will not appear without installing the specific current module Make sure to power OFF the Model 933A before replacing a current module Keep your fingers away fr...

Страница 64: ...2 Press the MODIFY INPUT soft key and select either current or voltage corresponding to the input type 3 Before leaving this menu press the SAVE SETTINGS soft key To leave without saving press the EXIT soft key 3 10 Trigger Setup The last selection in the setup selection screen is called Trigger Setup Triggers allow the Model 933A to automatically record to internal flash specific data when either...

Страница 65: ...ng the REVIEW key to view recorded data the Display Selection menu is again used to help you select the type of data This is possible because the Model 933A stores a complete set of data for each record Press the number on the left corresponding to the data type you wish to view To change between display selections press the number on the numeric keypad corresponding to the desired data type Figur...

Страница 66: ...ivate the Min Max soft menu at the bottom of the display 3 To view the minimum maximum or average results press any Min Max function soft key below the display 4 Press the RESTART Min Max soft key to reset the minimum maximum and average values to zero and begin storing new values 5 Press the EXIT Min Max to return to the Phase A Results screen Note Remember that the Min Max function is always act...

Страница 67: ...Vdeg Ideg active reactive apparent power Watts VARs VA power factor PF frequency Hz Use the soft keys to select individual phases and totals Use the separate soft key shown below the display to select Normal Minimum Maximum or Average and to Restart values Status Indicators also show the internal clock time and date the current instrument configuration and also the charge level of the internal bat...

Страница 68: ... select each configured current and voltage Press the MAGNIFY TAB KEYS soft key to switch soft key menus for the magnify and tabular menu Figure 4 4 Graphical Harmonics Display 4 4 2 Tabular Harmonics In the Graphical Harmonics display press the MAGNIFY TAB KEYS soft key then press the TABULAR HARMONICS soft key Press PRE VIOUS 8 HARMONICS or NEXT 8 HARMONICS soft key to progress through tabular h...

Страница 69: ...he DISPLAY key and 2 Waveform Display to view the waveforms 2 Press the VOLTAGE WAVEFORMS soft key CURRENT WAVEFORMS soft key or V A WAVEFORMS soft key to view the respective waveforms 3 Press the MAGNIFY ON OFF soft key to view the magnified individual waveforms only New soft keys allow switching between phases Note This display does not include a complete set of Instrument Status indicators lowe...

Страница 70: ...gure 4 7 Magnified Waveform Display Press the Magnify ON OFF soft key to switch back to viewing the combined waveform results 4 6 V I Tabulation Press the Display key and select 3 V I Tabulation to view all phase voltages currents and neutral current Select the Min Max SELECTION soft key to switch between Normal Minimum Maximum Average Results and to Restart the counting for these results For addi...

Страница 71: ...nts are fixed and no other ratios are available Also the data is only available on the display of the 933A not available through the normal data stream from the 933A using PSCSV Figure 4 9 Show Ratio Display 4 6 3 Show Impedance Press the Show Impedance soft key to switch from voltage and current to impedance resistance R and reactance X Indicates the impedance of all configured phases and sequenc...

Страница 72: ...Power Tabulation main menu 4 7 1 Power Calculations Power and Energy are determined by making twenty separate measure ments per second with each measurement using 1024 samples i e it takes data from a 100 millisecond window This yields a 50 overlap for all readings to preserve accuracy Therefore since power is averaged over the interval the displayed value may not exactly match what you would comp...

Страница 73: ...aximum average and normal values Figure 4 12 Show Power Quality To select power quality 1 Press the DISPLAY key and choose 5 Power Quality to select the One Second Flicker results 2 Press the Min Max SELECTION soft key to open the NORMAL MINIMUM MAXIMUM AVERAGE RESTART of the power quality results 3 Press RESTART Min Max to restart tabulating power quality readings 4 8 1 Min Max Press the Min Max ...

Страница 74: ...eived Fluctuations in the rms voltage of only 0 25 are sufficient to cause noticeable flicker in light bulbs The 933A measures flicker according to IEC 61000 4 15 Definitions Voltage Fluctuation a series of voltage changes or a continuous variation of the rms voltage Flicker Impression of unsteadiness of visual sensation induced by a light stimulus whose luminance or spectral distribution fluctuat...

Страница 75: ...A hours Q hours and energy restart function soft key on the far right Figure 4 14 Energy Tabular Display To select Energy Tabulations 1 Press the DISPLAY key and choose 6 Energy Tabulation 2 Press the specific soft key to view Wh VAh Qh and VARh RESULTS Energy Restart Press the ENERGY RESTART soft key to reset the energy totals to zero 57 ...

Страница 76: ...er phase reference will cause that voltage or current phasor to appear in the zero reference position horizontal pointed to the right To select Phasor Displays 1 Press the DISPLAY key and choose 7 Phasor Display soft key to view the phasor display 2 Press the VOLTAGE PHASORS soft key to view the graphical and tabulated results of the voltage phasors 3 Press the CURRENT PHASORS soft key to view the...

Страница 77: ... related data and totals Refinements include Energy Delivered Basic plus Quality Basic plus Sequence Basic plus Phase and Min Max Selection To select basic data list items 1 Press DISPLAY 8 Basic Data List 2 Press any of the soft keys to choose the desired results with Basic Data See screens below for individual information Figure 4 16 Basic Data Display 59 ...

Страница 78: ...ion time and date calibration information firmware versions by date Also included is a battery and flash status screen that breaks down each category in more detail Battery Status Main Flash Log Flash Event Flash and DSP Flash See screen shots below Figure 4 17 Config and Status Display 60 ...

Страница 79: ... GPS STATUS will appear Press the SHOW GPS STATUS soft key to view GPS status information Press the SHOW GPS STATUS soft key to display geographical position and satellite tracking information Press the SHOW SATELLITES soft key to display the satellite positions and relative signal strength information Figure 4 18 GPS Status Display 61 ...

Страница 80: ... 933A by pressing the REVIEW key and selecting the type of records you want to review The main data review screen is shown below Figure 5 1 Main Review Screen 5 1 Review Data Selections The following choices are available by pressing the appropriate soft key from the menu above 62 ...

Страница 81: ...he event 5 1 4 Erase Log Data Press the ERASE LOG DATA soft key to clear all the data from the flash memory card The following pages describe in short steps and in more detail how to view and download data from the 933A 5 2 Steps to Locate Review Records Listed below are steps to assist you with identifying and locating the specific data you want to review Basically there are two types of records ...

Страница 82: ...gger by number and whether it is active up arrow or inactive down arrow 4 The next screen will always show the high speed waveform record of the event and within 50 ms of the event Remember that there should be either 25 or 30 cycles of pre event data 5 2 3 Reviewing Recorded Data Show Log To view any recorded data following an Event or LOG key press or Autolog session press the keys REVIEW SHOW L...

Страница 83: ...y SHOW LOG REVIEW SELECTIONS SHOW EVENT LOGS Next to view data press the record number left side You should see the DISPLAY SELECTION screen as in Figure 5 3 below Figure 5 3 Review Display Selection appears the same as pressing the DISPLAY key but during review it is in Hold Mode Press any of the number keys on the keypad to select the desired data type Remember that the 933A stores a complete 1 ...

Страница 84: ...recorded data from a LOG key press Show Auto Logs reveals only the recorded data from an Auto Log Show All Logs reveals all three types of logged data Exit Selections returns to the previous screen e g Review Selections Reduce Rate Increase Rate Use the REDUCE RATE or INCREASE RATE soft keys to adjust the scanning rate through the stored records RATE keys will save time searching when the 933A has...

Страница 85: ...ata line in the small window shown in Figure 5 5 indicates an event record The values and symbols in the record indicate some things about the event The event number on the left of the display includes the sequential number 0 9 the trigger number 01 and the arrow symbol The arrow symbol signifies if the trigger is either active or inactive An up arrow indicates an active trigger and a down arrow i...

Страница 86: ...er of records in the Log file Flash storage capacity is approximately 16 000 records Reduce Rate Increase Rate If the total number of records is very large press the rate adjust soft keys then to speed up the location of individual records To change the review rate press the REDUCE RATE or INCREASE RATE soft key The rate changes as follows One Entry per Step One Percent Steps Five Percent Steps Te...

Страница 87: ...ord See Figure 5 6 Figure 5 6 Reviewing Records 1 To view other forms of data e g per second data press the numeric key related to the data form in Display Selection menu as seen in Figure 5 7 2 For example press the 0 numeric key to view Tabular Results or 2 to go back to waveform from previous view 3 To view a specific data type press any of the numeric keys according to the numbers shown in the...

Страница 88: ...the list to view the waveform record at the time of the event see Figure 5 8 right screen 3 To access other power quality event records press REVIEW SHOW PWR QUAL as in step 1 Figure 5 8 Selecting and Viewing Power Quality Records Notice that each data record provides a record number trigger number date and time of event max and min values attained while the trigger was active Max and Min values a...

Страница 89: ...ata recorded due to an event Sag Swell Power Quality Event all Power Quality Event records Waveform waveform data recorded due to a power quality event Figure 5 9 Download Event Screen PSCSV NOTE User and Power Quality include records of the event itself not the data records collected at the time of the event To download the actual data recorded at the time of the event see Sections 5 5 2 and 5 5 ...

Страница 90: ...om the Data Selection window choose either Select All or Select Range data by date and time see Figure 5 10 If choosing Select Range date and time values are in UTC format 3 A SaveAs window should appear that allows you to save a record of the download Click the Save button and the records should be transferred from the 933A to the computer 4 When the User Log window appears a progress window will...

Страница 91: ...oose the Per Second radio button and click OK 2 Choose to select all data records or a smaller selection by time and date and click OK 3 Choose a file name and click OK to save the file log During this time a window will appear that shows both the progress and the record files being transferred from the 933A to a file on your computer See Figure 5 13 Figure 5 13 Downloading Per Second Data 4 Now s...

Страница 92: ...dio button and click OK 2 From the selection menu choose to all data records or a smaller selection by time and date and click OK 3 In the SaveAs window choose a file name and click OK to save the file log During this time a window will appear see Figure 5 15 that indicates both the progress and the record files being transferred from the 933A to a file on your computer 4 Now select the top line i...

Страница 93: ...se to select all data records or a smaller selection by time and date and click OK 3 Choose a file name and click OK to save the file log During this time a window will appear that indicates both the progress and the record files being transferred from the 933A to a file on your computer 4 Now select the top line in the log with your cursor and a Save As window will appear Type in a name click OK ...

Страница 94: ...ill say User Triggers Active 2 If more than one trigger is active then all of them will be listed Event Time Tracking See event wavefore in Figure 5 18 below Note that the actual event time appears below the dark vertical cursor in the middle of the waveform Figure 5 18 Downloaded Event Waveform By carefully examining the waveforms you will notice that there are holes in the waveform that correspo...

Страница 95: ...Analyze Power Quality Harmonics Flicker K factor and Interrup tions Capture Events from 32 Configurable Triggers Log Data from Triggers See Chapter 7 Autolog based on Time and Date Synchronize with GPS or IRIG B for Phasor Measurement Optional Event Inputs and Relay Contacts 6 1 2 Linking The first step in using PSCSV with the Model 933A is by linking the 933A to a computer running PSCSV To link t...

Страница 96: ...tion button or select Connection Open to initiate a serial connection One function that is available when PSCSV is not linked to a Power Sentinel is viewing data files You can open data files using the Open button without being connected to a 933A 6 2 1 Main Window Figure 6 1 Main PSCSV Screen Switching Toolbars ON or OFF To switch Toolbars on or off depending on the need and available space selec...

Страница 97: ... protocols see Section 6 4 and printing data Connection Menu Most of the actual work is done from this menu From opening a connection to configuring the 933A to collecting data or to finally closing a connection begin with the Connection menu or associated toolbar buttons Edit Menu Copy copies the selected data to the clipboard Select All selects all of the data in the Data window Preferences sele...

Страница 98: ...ta similar to an oscilloscope to expand or compress the horizontal scale Certain values are only available under preset viewing conditions Auto Scale Used by some functions to automatically scale data to fit in the window size View As view most data in real time or spreadsheet harmonics also as vertical bars and phasors as a vector or frequency plot Toolbars switch on or off any combination of too...

Страница 99: ... support downloads Connection Toolbar Open a Connection allows users to select a connection type specify parameters and open a connection between the 933A and computer Close a Connection immediately closes the current open connection shown in the Connection Window between the 933A and a computer User Login PSCSV 933 does not use this feature it is available for other Arbiter products All 933A feat...

Страница 100: ...sor Data initiates the flow of phasor data into the main window Indicated as PMU 1 Flash Toolbar Flash Status opens a summary window of flash memory status Erase Flash erases all records held in flash memory Download Events opens the Download Event window Allows selection of records for downloading from flash memory Erase Events not used in the Model 933A Use the erase flash function Input Toolbar...

Страница 101: ...s Select the question mark to return the instrument status Information on configuring ports and measurement parameters are located in this chapter For complete details on configuring trigger parameters see Chapter 7 Measurement Parameters includes DSP mode CT PT Ratios transformer Loss Compensation Anti Creep Internal Calibration and Voltage Linearity See Section 6 2 6 Ports includes RS 232 Port S...

Страница 102: ...dapter RJ11 to DB 9 between the 933A and the computer 2 Press DISPLAY 9 Config Status look under the heading COMMUNICATION on the 933A to verify the communication port settings especially Baud Rate 3 Start PSCSV and click the Open a Connection button in PSCSV or choose Connection Open 4 Click the plus sign next to RS 232 to reveal the COM selections which refer to the computer serial port Choose t...

Страница 103: ...the sign next to USB Devices choosing USB 933 and clicking the OK button below Ethernet The Model 933A does not have an Ethernet port and does not support Ethernet however you may use an Ethernet to Serial converter to connect remotely to the 933A 6 2 5 Configuring the 933A Use PSCSV to remotely configure the various features of the Model 933A and accessory equipment You can configure most feature...

Страница 104: ...ogy Active means that PMU 1 is poised and ready to send data set to ON if you want it to be active Set to OFF if you want it to be inactive or unresponsive Station or STN is the station name in 16 bytes in ASCII format given to the PMU This field helps to identify the location of the equipment ID or IDCODE is the 16 bit integer assigned by the user that uniquely identifies the device sending and r...

Страница 105: ...VA that you wish to activate Window Length sets the integer number of measurements averaged for stability if you choose 1 for example the values will update more quickly however appear less stable range of window length is from 1 to 24 Estimated Rate Hz is the integer number of phasor samples per second Equals 25 sps for 50 Hz and 20 sps for 60 Hz Cycles Used is a calculated value based on multipl...

Страница 106: ...s which are peaks in the rejec tion band Select a window function Estimator Algorithm based on desired performance Test algorithm performance using WindowFunc tion exe the free software tool available on the Arbiter web site See http www arbiter com software downloads php Digital Channels The 933A allows you to select any of the 32 available User DSP trigger records to accompany the regular phasor...

Страница 107: ...hold Older electromechanical meters would spin due to the fact that they were merely energized and energy was not consumed by the user Anticreep may only be configured from PSCSV software First set to ON in DSP Mode then set Anticreep 6 2 7 Other Windows Save As When selecting to broadcast any data it will open with a Save As window Since the data that you are broadcasting is ending up on your com...

Страница 108: ...g applies to both Summary and Spreadsheet views but must be selected separately Filtering only limits what is being displayed in PSCSV not what is saved in the file Figure 6 7 Data Filter Tool One Second Data Many of the Broadcast Data items like voltage current and frequency are averaged values over a one second interval providing more accurate measurements For details on how the 933A computes th...

Страница 109: ...screen each second Broadcast data can be synchronized to the GPS or IRIG B and simultaneously saved in a file of choice Summary Data Screen Summary view presents a graph in real time over a one minute interval with the beginning and ending measurements and overall minimums and maximums Fields include the named parameters using the Filter Data tool Spreadsheet Data Screen In spreadsheet format tabu...

Страница 110: ...e items of interest Note that filtering does not limit what is being stored in the data file it only limits what is being displayed Summary Data Screen Summary view presents a graph in real time over a one minute interval with the beginning and ending measurements and overall minimums and maximums Fields include the named parameters using the Filter Data tool Spreadsheet Data Screen In spreadsheet...

Страница 111: ...at filtering does not limit what is being stored in the data file it only limits what is being displayed Summary Data Screen Summary view presents a graph in real time over a one minute interval with the beginning and ending measurements and overall minimums and maximums Fields include the named parameters using the Filter Data tool Spreadsheet Data Screen In spreadsheet format tabular data includ...

Страница 112: ...dow Summary Data Screen Summary view presents a graph in real time over a one minute interval with the beginning and ending measurements and overall minimums and maximums Fields include the named parameters using the Filter Data tool Spreadsheet Data Screen In spreadsheet format tabular data includes times UTC and Local dates and one second measured parameters as filtered using the Filter Data too...

Страница 113: ...l the number of items on the screen use the Input toolbar which allows you to select only the voltage or current of interest Note that filtering does not limit what is being stored in the data file it only limits what is being displayed Waveform Data Screen Graphical view displays current and voltage waveform data within a small time interval that is somewhat adjustable Use the Input Toolbar to se...

Страница 114: ...te that filtering does not limit what is being stored in the data file it only limits what is being displayed Displays Two phasor views include a phasor with tabular data view and a frequency plot view In the phasor data view you can select to display the desired phase voltages or currents and expand to view some tabular data For tabular phasor data use the CSV button or select File Export CSV The...

Страница 115: ...em Frequency Deviation 10 System Frequency Rate df dt 11 System Time Deviation Seconds 12 System Time Deviation Cycles Energy Data 40 Values 1 Watt Hours Delivered and Received A B C phases and Total 2 VAR Hours Q1 Q4 A B C phases and Total 3 VA Hours Delivered and Received A B C phases and Total 4 Q Hours Delivered and Received A B C phases and Total Harmonics Fundamental to the 50th 600 Values 1...

Страница 116: ...ecific trigger configured in these instructions initiates recording when the phase voltage exceeds a limit and the 933A begins recording data to flash memory This waveform record is then downloaded to the host pc Once stored on the pc the record is easily converted into two COMTRADE files Without a captured waveform file there will be no information to convert to COMTRADE Basic Steps Required 1 Se...

Страница 117: ... file name and click OK Figure 6 8 Downloaded One Second Data A second window should appear and ask if you want to open your spreadsheet application with the data loaded You can choose either Yes or No If you select Yes then the data converted to CSV format should appear in the spreadsheet see Figure 6 9 Figure 6 9 Converted Data to Excel Format Note that the Export CSV feature works on any data t...

Страница 118: ...ept waveform or phasor that has been downloaded or was broadcast from the 933A Any data that was broadcast after you saved the converted data will not appear in the file If you want to include any later data in the same file simply go through the export CSV procedure again 6 4 4 Save As Snapshot Save As Snapshot creates a separate data file of all of the data recorded during a normal broadcast ses...

Страница 119: ... events and logged data see Chapter 5 Reviewing 933A Data 7 1 1 Recording Data to 933A Flash Memory When an event occurs the 933A will store a record of the event and begin recording all of the available electrical parameters into flash memory The total number of records is based on the time interval configured under the LOGGING TIME screen including in fault and post fault Fault recording always ...

Страница 120: ...fically to IEC 61000 4 30 Section 5 4 Supply Voltage Dips and Swells 7 2 Setting a User Trigger Follow the procedure in this section to configure a user trigger from the front panel Remember that whenever you select a user trigger number it is removed from the pool of 32 available triggers until turned off or reconfigured 7 2 1 New Trigger 1 From any screen press the SETUP key then select 7 Trigge...

Страница 121: ...ters in this screen Use a combination of the cursor keys enter and numeric keys to enter the data Normally you will not need to press the Enter key each time you select a new field use the up or down arrow to move between fields Definitions for the User Trigger values are found in Section 7 2 5 Figure 7 3 Selecting User Trigger Values 103 ...

Страница 122: ...rigger is active i e faulted PostFault time defines the number of seconds that the 933A records data after the trigger becomes inactive i e after the fault has disappeared Figure 7 4 Configuring Data Logging Times 5 Press the BACK soft key to return to the previous Edit User Trigger screen 7 2 3 Back Soft key 6 Press the BACK soft key to return to the trigger summary screen and view any of the tri...

Страница 123: ...gger would be called the Master and the frequency trigger would be the dependent trigger Master triggers are subdivided into two groups ActiveMaster and InactiveMaster For Active Master a dependent trigger could become active only after the master trigger became active Conversely for Inactive Master a dependent trigger could become active when the Master trigger became inactive Dependency may also...

Страница 124: ...ich the triggering condition is true before it switches to Active If set to zero the triggering response time is immediate TriggerLog ON or OFF OFF means that when a trigger occurs no event data will be recorded but one second data will be recorded ON means that when a trigger occurs an event record and data will be recorded MaxLogTime MaxLogTime defines the amount of time in seconds that the 933A...

Страница 125: ...g the up down cursor keys move the cursor to SELECT MODE then use the left right cursor keys to choose PWR QUAL and press the Enter key You should see a screen entitled EDIT PQ TRIGGER by number as in Figure 7 7 Figure 7 7 Selecting PQ Parameters 3 This is the screen in which you configure most of your power quality settings After you are finished with all of the settings in this screen press the ...

Страница 126: ...se the limit mode that suits your application For Absolute the limit is the same number as the value entered in for Limit For example a Limit of 130 could generate an event trigger if the voltage swings above 130 Volts For Percent the measured value is compared to a percentage of the measured signal Ten percent above nominal would be entered as 1 1 Ref Mode Reference Mode choose either Absolute or...

Страница 127: ...2 volts below the Trigger Limit For the trigger to again become Active i e after point E Va would need to again cross the 130 Vrms Limit Figure 7 8 Example of Hysteresis Power Quality Reference For power quality triggers install the Power Quality Reference values by pressing the PWR QUAL REFERENCE soft key seen in Figure 7 9 Figure 7 10 shows the power quality reference configuration screen Use th...

Страница 128: ...Figure 7 9 Power Quality Reference Selection Softkey Figure 7 10 Configuring the Power Quality Reference 110 ...

Страница 129: ...rms Where Usr n is the present value of the sliding reference voltage Usr n 1 is the previous value of the sliding reference voltage and U 10 12 is the most recent 10 12 cycle r m s value Note that even though the specification defines the input signal U as a voltage it has been applied in the 933A to include measured input currents as calculated using the same formula with U as a current Logging ...

Страница 130: ... devoted entirely to waveform storage and should be able to store sufficient data to analyze all channels Thus depending on the application the 933A is able to capture inrush currents sags and swells transients and many other non periodic phenomena 7 4 2 High Speed Waveform Capture The 933A begins recording data including high speed waveform whenever a specified event trigger occurs To assure that...

Страница 131: ...nt and allow you to scroll forward and backward with the cursor keys to inspect the waveform Use the right and left cursor keys to locate and examine specific points on the waveforms Instantaneous values are computed where the cursor and the waveforms intersect and tabulated at the bottom of the screen Press the COMPRESS WAVEFORMS or EXPAND WAVEFORMS soft keys to view more or less of the captured ...

Страница 132: ...ss the SHOW EVENT LOGS soft key 3 Look through the one second data to find the time of occurrence of the event and press any of the number keys to select a data point Figure 7 13 Captured One Second Record 4 Press any of the number keys to select the data type for viewing e g 0 Tabular Results 5 Press any of the soft key selections to choose to view any configured phase or to view Min Max informat...

Страница 133: ...nection to the Model 933A is by a nine foot cable assembly The Auxiliary I O Module is powered from the Model 933A and must be installed with the Model 933A powered OFF 7 5 2 Configuring Event Inputs 1 Open the Auxiliary I O connector cover on the 933A and slide in the plug on the end of the cable into the connector until it snaps in position 2 Power on the 933A 3 Press the SETUP key 7 Trigger Set...

Страница 134: ...true Checking the Event Inputs To verify the event inputs you can apply a correct voltage to event inputs 1 or 2 or use a short length of wire to short across the contacts of event inputs 3 or 4 1 Press the SETUP key and 7 Trigger Setup 2 Press the Event Settings soft key to view the event screen see Figure 7 15 3 Connect the triggering signal to the desired event connection 4 Watch the value in t...

Страница 135: ... Relay 1 is a set of solid state contacts useful for keeping track of energy using the KYZ method To set up these contacts refer to Figure 7 16 1 Select SETUP key 7 Trigger Setup RELAY SETTINGS soft key 2 Specify the channel A B C or Total the type of signal e g Watt hour and the scale see below under Kp Register Scale Factor Kp Register Scale Factors Correct scaling is necessary for accurate KYZ ...

Страница 136: ...he accumulator in the 933A will store these counts not degrade the Model 933A accuracy If data has accumulated in the 933A then when the signal has dropped below 100 by Scale Factor the output will put out the additional pulses until the accumulated overage equals zero Relays 2 and 3 Mechanical Contacts Relays 2 and 3 are two separate mechanical contact sets and each have a limited lifetime of abo...

Страница 137: ...en a connection between the Model 933A and your computer For RS 232 and USB connections see Section 6 2 4 2 Open the window by clicking the Configure Trigger Parameters but ton or by selecting Connection Configure Trigger Parameters 3 Once the Configure Triggers window is open in the left panel select the type of trigger you want to use either User or Power Quality 4 There are 32 possible triggers...

Страница 138: ...amed Input Signal and adjacent to the desired trigger 3 Begin choosing and filling in parameter values Note that not all parameter fields are required e g Reference Dependency See Section 7 2 5 for details on each parameter selection 4 Indented from User Triggers are Schulz Laios settings See Sec tion 9 26 for more detail on Schulz Laios filters Figure 7 18 User Trigger Setup using PSCSV 120 ...

Страница 139: ...n parameter values Note that all fields are required for Power Quality Triggers however some field values may be OFF or 0 See Section 7 3 2 for details 4 Note that References the values across the top of the individual trigger parameters are the RMS voltage and current values you would expect under normal operation Figure 7 19 Power Quality Trigger Detail 7 6 3 Auxiliary I O Module The Auxiliary I...

Страница 140: ...ct to most common electrical systems Optionally a GPS module or IRIG B signal may synchronize the internal clock to provide synchronized measurements Possible input configurations and ranges are specified below 8 2 Input Configurations 3 Phase 3P 3 element 2 1 2 element 2 element 1 Phase 1P 2 element 1 1 2 element 1 element Input Voltage Range 3P 1P 1 650 Vrms maximum selectable phase to phase for...

Страница 141: ...and copper loss Input Frequency Range Range 45 65 Hz for specified accuracy Harmonics 3 kHz Input Connector Ratings Voltage Safety Banana color coded per phase Current 5 way binding post including safety banana Insulation 400 Volts nominal to neutral chassis surge voltage class III 600 Volts nominal to neutral chassis surge voltage class II 8 3 Instrument Interface Front Panel Indicators and Contr...

Страница 142: ...time tag Storage Rate Selectable Event data stored upon occurrence Lifetime 100 000 cycles Data Retention Indefinite no power or battery required to retain data DSP Configuration Configure Using PSCSV configure DSP Mode CT PT ra tios and transformer loss compensation Internal calibration set at factory Unit Type Texas Instruments TMS320C32 Floating Point DSP Configuration Default 120V 5A 60Hz 3PH4...

Страница 143: ...aximum Isolation 4000 Vrms for 1 minute to chassis Event Input Connections Type and Number Four optically isolated one at 24 to 240 Vdc one 5 V logic level and two contact closure Isolation 4000 Vrms for 1 minute to chassis Resolution 1 µs 8 5 System Control and Monitoring System Time Phase and Frequency System Time Unlimited accumulation with 1µs resolution Frequency 7 digits xx xxxxx Hz System P...

Страница 144: ...ns NOTE Accuracy specifications include all sources of uncertainty Except as noted specifications apply for the full operating range including temperature 10 to 50 C line voltage input range including specified over range power factor input frequency and drifts over a one year calibration interval Specifications assume synchronization to GPS and operation in 3 element mode or in a well balanced sy...

Страница 145: ...greater Frequency 1 ppm 0 0001 of reading 50 or 60 Hz nominal plus timebase error System Phase 0 03 timebase error 360 frequency 2 System Time 1 µs timebase error 2 Event Inputs 10 µs typical 1 For voltage 50 to 650 Vrms and current 50 mA to 20 Arms 2 With GPS option Phasors Standard Per IEEE Standard 1344 or PSCSV Rate 20 Measurements second 8 8 General Physical Size 205 x 305 x 225 mm 8 x 12 x 8...

Страница 146: ...tion 8 hours typical Charging 4 hours Standby Use 5 VA typical External Power Range 85 to 264 Vac 47 to 63 Hz or 120 to 275 Vdc 25 VA typical 5 VA typical stand by use Input IEC connector with fuse surge withstand per ANSI C37 90 1 and IEC801 4 standard 128 ...

Страница 147: ...ent functions are described in the sections which follow Two microprocessors are required to handle the many tasks being per formed continuously in such a highly integrated portable instrument A Texas Instruments TMS320C33 floating point DSP unit performs the digital signal analysis tasks Instrument I O functions and interface to the real world are handled by an SGS Thompson ST10F167 16 bit microc...

Страница 148: ...d the 933A keeps time with an internal real time clock 9 4 Current Inputs The current inputs of the 933A are implemented in a removable module The standard current module is a three phase current input designed to be accurate to a few ppm over time and temperature see Error Analysis This current input section uses a two stage process similar to a two stage current transformer except that the first...

Страница 149: ...l performance i e no one error dominates and provided that worst case actual data is used for the analysis The error analysis used for the 933A power or energy measurements is shown in Table 9 1 Similar analyses have been performed for the other functions of the instrument and include most of the same factors shown here Temperature Errors 0 50 C Error PPM Current Input resistor TCR 63 Voltage Inpu...

Страница 150: ...enabled At this point two different things are done with the resulting measurement data First a determination is made of the quadrant in which this data should be registered Wh delivered or received VARh delivered or received The results of each measurement cycle 20 sec are then added to the proper set of registers These registers are stored periodically and accumulation restarted from zero The us...

Страница 151: ...e system voltage is relatively constant the PT compensation factor is a single complex i e magnitude and phase or real and imaginary correction factor CT compensation is more complicated than PT compensation Due to the fact that magnetizing currents in CT s are not exactly proportional to the load current a matrix is used This allows the entry of several different compensation factors measured at ...

Страница 152: ...also called core losses are due to magnetizing currents the small amount of current required to generate the flux in the core which is unrelated to the load current and eddy current losses in the core material These are approximately proportional to the square watts or 4th power VARs of the voltage and the compensation is performed using the same basic method as described above for copper loss 9 1...

Страница 153: ... between any two voltages or currents Because the sampling process may be synchronized via IRIG GPS to UTC absolute phase angle measurements may be made and compared between two units located at some distance from one another Frequency is measured by taking the difference in phase angle between subsequent measurements based on the identity f dφ dt Frequency is averaged over one second prior to bei...

Страница 154: ...ttle consequence when the frequency is close to being accurate which is most of the time since the amount of energy outside of the three bins summed is so low Finally with the Hanning window there is no signal at all outside of these three bins if the frequency is exact In the real world however the frequency will be off somewhat and it is reasonable to ask how large the error can be For small fre...

Страница 155: ... is a continuous process This process is performed using a sample rate of 640 samples per second sps Anti alias decimation filtering is performed on the 10240 sps data stream and the resulting samples are further processed following the block diagram suggested in IEC 61000 4 15 The resulting measurements of flicker perceptibility are classified using a 256 level logarithmic classifier at the full ...

Страница 156: ...ger cycles of error plus fractional phase and is converted to seconds as needed The positive sequence voltage phase angle is used for this measurement Since this is an integrated value the constant of integration initial time offset value must be specified by the user 9 19 Phasor Measurements Phasor data are formatted and output in accordance with IEEE Standard 1344 1995 Phasors consist of the rea...

Страница 157: ...data The waveform data is stored for all input channels at the full data rate with 16 bit resolution One half second of waveform data is continuously stored in RAM Once an event designated to record waveform data occurs this data is transferred to Flash and waveform data continues to be stored according to user defined times and conditions About 10 minutes of waveform data may be stored The other ...

Страница 158: ...y conditions the 933A can be configured to initiate an auto dial call or contact closure when the condition is met Two separate 128 MByte flash cards are allocated 1024 blocks each for a total of 256 MBytes and purposed for different applications Flash memory must be erased in blocks and data cannot be overwritten until its block is completely erased Therefore the normal process will be to first r...

Страница 159: ...er algorithm Table 2 For each of these there are typically four different measurement channels A C B and either average total or maximum of A C and B Thus there are a total of 124 different signals corresponding to individual measurement results which can be selected Not all of these are defined at this time however Second there are 32 trigger channels which may be configured for use concurrently ...

Страница 160: ... transients There are six channels dedicated to performing this function in the 933A Table 4 Each of these may have any of the 124 signals described above as its input Each channel has three outputs a low pass filtered bound output a rate of change output and an oscillation detector output Each channel also has three control parameters in addition to the input signal selection the rate of change f...

Страница 161: ...sec A C B max A C B 1 18 Flicker PST voltage 1 sec A C B max A C B 1 19 Flicker instantaneous current 1 sec A C B max A C B 2 20 Flicker PST current 1 sec A C B max A C B 2 21 25 Reserved TBD TBD 26 31 Transient Detector channel 0 5 20 sec Bound rate ch osc 1 Average or maximum of 3 voltage channels in 3P4W3E and 3P3W2E input mode 1 channel in 1P2W1E mode and 2 channels in other modes In 3P3W2E mo...

Страница 162: ...lgorithm Control 6 Channel 1 Function Range or Options T1 High pass rate detector time constant sec onds Minimum 0 05 seconds typical 0 5 sec onds T2 Oscillatory detector low pass time constant seconds Minimum 0 05 seconds typical 5 0 seconds Oscillatory detector Reset threshold Threshold in measurement units Set to any negative number to disable reset Input Signal 0 31 per Table A 2 Channel 0 3 p...

Страница 163: ...Chapter 10 Connection Diagrams 145 ...

Страница 164: ...le Power Sentinel Model 933A TM Portable Power Sentinel 933A 20Arms DIRECT INPUT CURRENT MODULE TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY N N L1 L1 LINE LINE LOAD LOAD Figure 10 1 1 Phase 2 Wire 1 Element Direct Connection 146 ...

Страница 165: ...ortable Power Sentinel Model 933A TM Portable Power Sentinel 933A 20Arms DIRECT INPUT CURRENT MODULE TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY N L2 L1 Line Load Figure 10 2 1 Phase 2 Wire 1 1 2 Element Direct Connection 147 ...

Страница 166: ...Portable Power Sentinel Model 933A TM Portable Power Sentinel 933A 20Arms DIRECT INPUT CURRENT MODULE TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY N L2 L1 Line Load Figure 10 3 1 Phase 3 Wire 2 Element Direct Connection 148 ...

Страница 167: ...ortable Power Sentinel Model 933A TM Portable Power Sentinel 933A 20Arms DIRECT INPUT CURRENT MODULE TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY L2 L1 Line Load L3 Figure 10 4 3 Phase 3 Wire 2 Element Delta Direct Connection 149 ...

Страница 168: ...rtable Power Sentinel Model 933A TM Portable Power Sentinel 933A 20Arms DIRECT INPUT CURRENT MODULE TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY L2 L1 Line Load L3 N Figure 10 5 3 Phase 4 Wire 2 5 Element Direct Connection 150 ...

Страница 169: ...M Portable Power Sentinel Model 933A TM Portable Power Sentinel 933A 20Arms DIRECT INPUT CURRENT MODULE TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY L2 L1 Line Load L3 N Figure 10 6 3 Phase 4 Wire 3 Element Connection 151 ...

Страница 170: ...er Sentinel Model 933A TM Portable Power Sentinel 933A 20Arms DIRECT INPUT CURRENT MODULE TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY N N L1 L1 LINE LINE LOAD LOAD Figure 10 7 1 Phase 2 Wire 1 Element Using CT PT Connection 152 ...

Страница 171: ...e Power Sentinel Model 933A TM Portable Power Sentinel 933A 20Arms DIRECT INPUT CURRENT MODULE TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY N L2 L1 Line Load Figure 10 8 1 Phase 2 Wire 1 1 2 Element Using CT PT Connection 153 ...

Страница 172: ...le Power Sentinel Model 933A TM Portable Power Sentinel 933A 20Arms DIRECT INPUT CURRENT MODULE TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY N L2 L1 Line Load Figure 10 9 1 Phase 3 Wire 2 Element Using CT PT Connection 154 ...

Страница 173: ...Power Sentinel Model 933A TM Portable Power Sentinel 933A 20Arms DIRECT INPUT CURRENT MODULE TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY L3 L2 L1 Line Load Figure 10 10 3 Phase 3 Wire 2 Element Delta Using CT PT Connection 155 ...

Страница 174: ... Power Sentinel Model 933A TM Portable Power Sentinel 933A 20Arms DIRECT INPUT CURRENT MODULE TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY L2 L1 Line Load L3 N Figure 10 11 3 Phase 4 Wire 2 1 2 Element Using CT PT Connection 156 ...

Страница 175: ...e Power Sentinel Model 933A TM Portable Power Sentinel 933A 20Arms DIRECT INPUT CURRENT MODULE TIMING SOURCE COMMUNICATION AUXILIARY I O VOLTAGE GROUND A B C N 650Vrms Max TM 933A PORTABLE POWER SENTINEL 110 250Vdc 85 264Vac 47 440Hz FUSE 1AF 250 IRIG B IEEE 1344 GPS RECEIVER USB 1 0 RS 232 SAFETY L2 L1 Line Load L3 N Figure 10 12 3 Phase 4 Wire 3 Element Using CT PT Connection 157 ...

Страница 176: ...achine Without DHCP the IP address must be entered manually at each computer and if computers move to another location in another part of the network a new IP address must be entered DHCP lets a network administrator supervise and distribute IP addresses from a central point and automatically sends a new IP address when a computer is plugged into a different place in the network A 2 DNS A Domain N...

Страница 177: ...he most commonly installed Ethernet systems are called 10BASE T and provide transmission speeds up to 10 Mbps Connected devices compete for access using a Carrier Sense Multiple Access with Collision Detection CSMA CD protocol A 5 Fast Ethernet Fast Ethernet or 100BASE T provides transmission speeds up to 100 megabits per second and is typically used for LAN backbone systems supporting workstation...

Страница 178: ...ms and customer equipment should have lower failure rate Harmonic Summary data returned from the 933A can be a strong indicator of what harmonics are being returned to the distribution system location by users with nonlinear loads Harmonic content is potentially damaging both to the power company and the user Without adequate protection equipment will experience early failure and reduced overall e...

Страница 179: ...and includes all the harmonics up to the 50th A 12 RMS THD The RMS Total Harmonic Distortion or THD is the rms value of all of the harmonics 2 50 and has the same units volts or amps RMS THD is calculated from the following equation A 3 RMS THD q V 2 2 V 2 50 where Vn is the harmonic rms voltage and n equals harmonic number A 13 TFTP Trivial File Transfer Protocol TFTP is an Internet software util...

Страница 180: ... V1 is fundamental voltage and V50 is the highest measured har monic A 15 THD T THD T is the Total Harmonic Distortion voltage compared to the total voltage fundamental plus harmonics and expressed as a percent THD T is calculated from the following equation A 5 THD T p V 2 2 V 2 50 p V 2 1 V 2 50 100 where the denominator now includes the sum of rms harmonic voltages plus the fundamental 162 ...

Страница 181: ... version and 933uploader vXXXX exe pro gram from the Arbiter Systems web site The web address is listed below http www arbiter com pscsv 933index php The firmware will be in zipped format and does not need to be unzipped to use The uploader program automatically extracts the file before uploading it to the 933A IMPORTANT Do not halt the progress of uploading the new file into the 933A or it may no...

Страница 182: ...ings on the Model 933A Press the DISPLAY key then 9 Config Status Under the heading COM MUNICATION make sure you verify the baud rate 4 On the 933A Flash Update Application 933uploader exe select Settings Serial Port and select the correct port 5 Select Settings Upload Mode RS 232 Serial Port 6 Select Settings Baud Rate select the same baud rate as the 933A discovered in step 3 Figure B 1 Starting...

Страница 183: ...s in Figure B 2 and provide the firmware information Figure B 2 File Information for Newly Extracted Firmware 8 Click the Upload button blue with a white UP arrow and the file will transfer to the 933A The uploader will start by erasing flash in the 933A and indicated by the progress screen After flash has been erased the program should indicate the progress of the upload with a progress bar as se...

Страница 184: ...ful as indicated in Figure B 4 Figure B 4 Successfully Uploaded File Information 9 You can close the uploader program 10 The 933A should be ready to use and not need to have power cycled If you should have any questions about uploading new firmware to the Model 933A contact the Arbiter Systems technical support at the information listed on page ii 166 ...

Страница 185: ...Appendix C CE Mark Certification C 1 Introduction The following page contains the individual CE Mark Certifications for the model covered in this manual This includes Model 933A 167 ...

Страница 186: ... Class A Radiated and Conducted Emissions Standard EN50082 1 Generic Immunity Part 1 Referenced Residential Commercial and Light Industrial environments EN61010 1 Safety requirements of Electrical Equipment for Measurement Control and Laboratory Use Signed Signatory Bruce H Roeder This certificate declares that the described equipment conforms to the applicable requirements of the directives on El...

Страница 187: ...ues 97 list 101 phasor data 100 waveform data 99 button PSCSV definitions 85 CE mark 175 CE mark certifications 175 clock free running 30 38 39 sync with gps 38 sync with IRIG B 38 synchronized mode 40 UTC or Local 40 clock RTC 29 clock accuracy free running 30 synchronized 30 clock synchronization description 136 communication Ethernet 90 ports 22 RS 232 23 USB 22 configuration instrument 62 conf...

Страница 188: ...Ratio 55 Sequence 55 Waveform Display 53 DNS 165 downloading data broadcast data types 95 Basic Data 95 Energy Data 96 Harmonic Data 97 Harmonic Summary 98 Phasor Data 100 Waveform 99 using Hyperterminal 33 using Tera Term Pro 32 DSP 166 electrical system diagrams 151 energy calculation 138 error analysis description 137 Ethernet 166 Ethernet Fast 166 event logging 145 Fast Ethernet 166 file trans...

Страница 189: ...ghting 26 hold 28 log 27 numeric keypad 27 on off 24 print 27 review 27 setup 25 soft 25 Kp register scale factor 121 167 KYZ Aux I O Module 119 contacts 121 pulse metering 167 linking 168 933A and PC 81 load balance description 145 loss compensation xfmr 92 measurement basic data 61 energy 59 flicker 58 harmonic 52 min max 50 phasor 60 power 56 power quality 57 sequence voltages and currents 55 s...

Страница 190: ...load 86 phase balance description 144 phase measurement 141 phasor data 86 90 100 phasor measurement description 144 power calculation 138 power input connector 17 23 Power Quality see measurement power quality 106 110 Powering the 933A ac power cord 15 battery 16 PT compensation description 139 Reviewing Data 65 changing view rate 69 data selections 65 downloading 75 erasing 66 hold mode 71 inter...

Страница 191: ...tem deviation 144 title page v Toolbar flash 86 Toolbars 85 broadcast 85 configure 87 connection 85 input 86 main 85 records 87 transformer compensation 140 triggering description 147 Triggers definitions power quality 112 definitions user 109 dependency 109 erasing 118 example waveform 117 high speed data capture 116 hysteresis 113 logging time 108 power Quality 106 power quality 110 power qualit...

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