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CYG PRS-7973 Manual

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PRS-7973
Fault Recording &
Ranging Equipment
Manual
CYG SUNRI CO., LTD.
V1.0.1
1

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Summary of Contents for CYG PRS-7973

  • Page 1 PRS-7973 Fault Recording & Ranging Equipment Manual CYG SUNRI CO., LTD. V1.0.1...
  • Page 2 Before use of this product, please carefully read this chapter! This chapter describes safety preventive recommendations to be observed before use of this product. For installation and use of this product, make sure to fully read and understand contents of this chapter. Our company shall not be responsible for any harm due to neglect of relevant warning in this manual or improper operation.
  • Page 3 Pay special attention to the requirement that some general purpose rules for work on HV live equipment must be followed; if not, serious personnel injury or equipment damage may occur. Warning!  Exposed terminals With the equipment live, never touch exposed terminals, as these may have dangerous high voltage.
  • Page 4 Version: P/N: Copyright © 2019 CYG CYG SUNRI CO., We have all intellectual property rights in this document and its contents unless specially authorized, and prohibit copying or distributing to third parties. Any infringement of intellectual property rights such as our company's version...

  • Page 5: Table Of Contents

    3.Hardware description ......13 3.1 Overview ......................13 3.2 Structure and installation ................13 3.2.1 Device description ......................13 3.2.2 PRS-7973 Transmitter ....................20 3.3 Ground description ..................21 3.4 Grounding of cabinet ..................21 3.5 Device grounding terminal ................23 4.Description of functions and use of software ..
  • Page 6 4.1.3 Engineering configuration ..................... 28 4.1.4 Management of settings ......................38 4.1.5 Waveform analysis ........................ 42 5.Power Quality Monitor ......44 5.1Main function describle ...... 44 6.Commissioning ......... 44 6.1 General ........................ 44 6.2 Safety description ....................45 6.3 Inspection of equipment ..................45 6.3.1 Inspection power-on ......................

  • Page 7: General

    1.General 1.1 Applicable scope PRS-7973 fault recording and ranging equipment is used to record the whole process of change of electrical quantities such as current, voltage, frequency, and their derived quantities (active power and reactive power etc.) as well as relevant non-electrical quantities during various faults in the power system, e.g.

  • Page 8: System Structure

    and is protected against computer viruses, to allow safer and more reliable operation. System structure Line Voltage&Curren PRS-7973Acqui PT/CT Master Voltage&Curren sition&fault station Transmitter analysis unit unit Transformer Voltage&Curren 3/2 wiring Voltage&Curren time Technical parameters and performance indices Rated parameters FN：50Hz；...

  • Page 9: Power Consumption

    Power consumption Device Power consumption PRS-7973 fault recording & ranging <50W analysis unit PRS-7973 fault recording & ranging <50W transmitters Overload capacity ： AC current circuit 2 times rated current: continuous operation permitted; 10 times rated current: operation for 10S permitted;...

  • Page 10: Impulse Voltage

    Table 2-2 Specified values of testing voltage Tested circuit Rated insulation voltage Testing voltage (V) AC input circuit to earth DC power supply input circuit to earth BI circuit to earth Signal and alarm output contact to earth Between circuits without electric connection Impulse voltage Under standard testing atmospheric conditions, 1.2/50μ...

  • Page 11: Resistance To Disturbance

    Resistance to disturbance Fast transient disturbance test: This equipment shall be able to withstand severity class IV fast transient disturbance test specified by 4.1 of GB/T 14598.10-1996. Static discharge test: This equipment can withstand severity class IV static discharge test specified by 4.2 of GB/T 14598.14-1998. Pulse train disturbance test: This equipment can withstand severity class III 1MHz and 100 kHz pulse train disturbance test specified by 3.1.1 of GB/T 14598.13-1998.

  • Page 12: External Communication

    data have absolute time mark. Recording of stable state data: According to demands, this equipment can continuously record important electrical quantities such as voltages, currents, and frequencies for comprehensive analysis. Activation of recording of stable state data can be set, as well as time of recording. Storage of stable state data files allows convenient search and remote call of such data.

  • Page 13: Gps Timing Mode

    2.13 GPS timing mode PRS-7973 fault recording and ranging unit provides one line of TTL interface, supports IRIG-B code timing, and performs calibration of clock of other units at the same time. ＜1us IRIG-B (TTL) Time service precision after 24 hours 250us 3.Hardware description...
  • Page 14 Figure 3-1Power system dynamic recording device face-up diagram Industrial - grade reinforced 6U full - wide standard chassis。 Fully enclosed cabinet , rear wiring , embedded mounted on cabinet , back plate as shown in Fig . 3 - 2： Figure3-2Back board diagram of the power system dynamic recording device CPU board has the following interface...
  • Page 15 interface B code timing interface（TTL） interface 100Mbps Ethernet interface The acquisition board has the following interfaces DI board， passive node, drive voltage of DC110V; maximum 24 lines of BI quantities can be connected to one such board; largest configuration includes 8 DI boards (192 lines of BI quantities).
  • Page 16 AD boards: receive small AC signals (AC current/voltage) uploaded by fault recording and ranging transmitter. Each DB37 interface can connects 16 lines of AC sampling and each AD board can connects 32 lines of AC sampling. At most 3 AD boards can be configured (connecting 96 lines of AC sampling data).
  • Page 17 A DC board is connected with a maximum of 8 direct flow and can be extended to 16.
  • Page 18 Description Terminal No. PE： earthing terminal Idle terminal Idle terminal Idle terminal Idle terminal Equipment power 2 supply loss 11、12 alarm Equipment power 1 supply loss 13、14 alarm 15、16 Fault recording activation signal BO 17、18 Equipment fault signal BO Alarm signal BO 19、20 21,、22 reserved...
  • Page 19 Hard disk board, equipped with 2 T level data hard disk.

  • Page 20: Prs-7973 Transmitter

    3.2.2 PRS-7973 Transmitter PRS-7973 transmitter faces up as shown in Figure 3-3 below Figure 3-3 Image of Transmitter Attention： Adequate space must be left up and down in the opening position of the screen cabinet or switchgear for heat dissipation.

  • Page 21: Ground Description

    All the hardware modules of the device must be properly and tightly inserted into the corresponding slot position on the device . 3.3 Ground description The device or circuit at the electrical installation induces the interference current in the electromagnetic interference.
  • Page 22 horizontal bar of the screen cabinet face to face to ensure the small impe dance path of ground impe dance of RF interference .The contact surfaces of these metal plates must be well conductive and corrosion resistant. Attention： If the above conditions can not be satisfied, it is possible to form a resonant circuit at a certain frequency in a part of the screen cabinet or screen cabinet, which can amplify the transmission ability of interference and reduce the immunity...

  • Page 23: Device Grounding Terminal

    3.5 Device grounding terminal The device has a grounding terminal on the AC module (AC) of the rear panel , which can be grounded by flat copper strands .When grounding , make the grounding with flat copper strands as short as possible .The device can only be grounded a bit , and connecting the ground terminals from the device to the device is not allowed .

  • Page 24: Description Of Functions And Use Of Software

    Attention: The rated voltage of the input power supply is 220 V and 110 V adaptive. Other voltage levels need special orders. Please check that the rated input voltage of the power supply module is the same as the control power supply voltage. Attention: The power module provides 1# terminals and earthing posts for device grounding.

  • Page 25: Description Of Main Functions

     User management: allocation and management of users, user authorities, and user passwords 4.1.1 Main system interface Main interface of PRS-7973 fault recording and ranging equipment is shown in Fig.4-1. Communication status zone Functional interface switching button zone...
  • Page 26 System alarm information zone Fig.4-1 Main interface of fault recording and ranging equipment 1) Communication status zone: ● Device Status There is a red square icon above “Device” ,when recording analysis unit is not connecting with recording management.Otherwise,it shows a green square icon.Besides icon,it represents names of recording analysis unit.

  • Page 27: Real-Time Monitoring

    Fault recording: indication of alarm for activation of equipment fault recording; red upon alarm and green otherwise Self-check: indication of alarm for abnormity in equipment proper; red upon alarm and green otherwise 4) System alarm information zone Start-up information: only effective when the fault recording function configured for the system is enabled;...

  • Page 28: Engineering Configuration

    Fig.4-3 Through channel sieving function, real-time waveforms and statuses of data of major concern can be displayed according to primary equipment or any selected channel; refer to Fig.4-4. Fig.4-4 4.1.2.2 Real-time power page The real-time power page displays power information of selected channel. Refer to Fig.4-5.
  • Page 29 According to particular engineering requirements, carry out initial configuration of connected analog quantity channels and connected equipment such as generator, transformer, and line. Note: Upon equipment ex-factory, configuration has been made according to panel wiring and agreement requirements; do not operate at will if not necessary.
  • Page 30 fault recording analysis unit: normally use default IP of 193.100.100.1, which needs not be changed. For (Equipment Description), name the equipment according to actual condition, and default name can be used if not required otherwise. Use Select Template functions to select corresponding template file (select (Select Template).
  • Page 31 Fig.4-10 Equipment information configuration diagram 4.1.3.2 Analog quantities configuration In default configuration, 96 lines of AC analog quantities and 8 lines of DC quantities have been configured. Engineering personnel shall modify channel names, channel marks, phases, channel types, primary ratings, secondary ratings, orders of magnitude, and units according to actual site demands.
  • Page 32 corresponding binary quantity channels according to actual site demands, and then modify relevant channel data. Modification of all items supports batch modification mode. After selecting relevant channel, use button Modify in the right key menu to modify relevant items. Refer to Fig.4-12. Fig.4-12 When channel type is configured as protection operation output and signals of circuit breaker position and switch position are triggered, fault will be judged in this...
  • Page 33 Fig.4-14 Select the substation and then use right key menu to add primary equipment, e.g. line, bus, transformer, generator, exciter etc. (Fig.4-15) Fig.4-15 Create a bus: according to actual site conditions, select equipment status (enabled/disabled) and modify bus name, rated voltage, auxiliary side rated voltage, and TV installation position.
  • Page 34 dragging is supported (Fig.4-17). Fig.4-17 Create a line: select (by checking) equipment status (enabled/disabled), and modify line name, relevant bus ID (bus ID is established bus serial No. in ), rated voltage, rated current, and auxiliary side rated current according to actual site conditions. In case ranging function is required, the following shall be configured: line length, positive sequence resistance, positive sequence reactance, zero sequence resistance, zero sequence reactance, positive sequence capacitance, zero sequence capacitance, positive sequence conductance,...
  • Page 35 Fig.4-18 Configuration mode for line related analog quantity channels and binary quantity channels is the same as for bus. Create a transformer: first select number of transformer windings, e.g. 2-winding transformer or 3-winding transformer. Refer to Fig.4-19. Fig.4-19 Configure transformer status (enabled/disabled), transformer name, and transformer rated capacity, e.g.
  • Page 36 Fig.4-20 Configure information at each side of the transformer. Take 2-winding transformer as an example, refer to Fig.4-21. Fig.4-21 Configure transformer related analog quantity channels and binary quantity channels; use the same method as for bus. Create a transformer and configure the following information according to actual site demands;...
  • Page 37 Fig.4-23 4.1.3.5 Channel calibration In case of relatively large analog quantity numerical deviation at site, click button (Calibrate Channel) to calibrate the channel again. Channel calibration page is shown in Fig.4-24. Fig.4-24 First, select the channel to be calibrated at left side. Apply value of 0 from outside. Click button (ask for Real-time Data) and wait for refresh of data at left side.

  • Page 38: Management Of Settings

    conditions. Click button and wait for refresh of data at left side. Later, click button (Calibration Coefficient). Finally, click button (OK) to complete channel calibration. Click buttons (Recovery Coefficient) and (Recovery Zero Drift) to restore relevant coefficients to default values. Fig.4-25 Attention: In case DC voltage is 10V~1000V, set DC board to 1000V gear and set DC voltage in the Reference Values tab to 100V for channel calibration.
  • Page 39 Frequency change rate Calculation of 3U0/3I0 Segment A fault record length 100~2000 100ms Segment B fault record length 400~10000 1000ms 10 Segment C fault record length 0~20000 1000ms 11 Segment D fault record length 0~40000 1000ms 12 Segment A sampling frequency 640~12800 12800 13 Segment B sampling frequency...
  • Page 40 harmonic 0~57.7 5.77367 10 5 harmonic 0~57.7 5.77367 11 7 harmonic 0~57.7 5.77367 12 9 harmonic 0~57.7 5.77367 Table 4-2 AC current settings are given in Table 4-3. Setting name Setting range Default value Determined by primary secondary ratings analog Transformation ratio quantity configuration;...
  • Page 41 Low DC overreach Default: 98% rated current DC sudden variable Default: 50% rated current Table 4-5 Voltage ordered quantity settings are given in Table 4-6. Setting name Setting range Default value ZS sudden variable Default: 1% rated voltage ZS high overreach Default: 1% rated voltage PS high overreach Default: 110% rated voltage...

  • Page 42: Waveform Analysis

    Table 4-9 On the switch enabling/disabling page, triggering of fault recording by each binary quantity can be enabled/disabled. Double click (Enable/disable) at upper part of the table to enable/disable all such functions. 4.1.5 Waveform analysis Waveform analysis tool main interface is shown in Fig.4-26. Fig.4-26 4.1.5.1 Menu bar ●...
  • Page 43 Customize waveform printing time period (T1~T2) Print preview: view effect of printing Display instantaneous value: numerical value displayed at left side Display effective value: numerical value displayed at left side Display primary effective value: numerical value displayed at left side Display phase angle at left side of the tool Display phase angle difference at left side as per customized T1 and T2 True effective value: display whole waveform effective value at left side...

  • Page 44: Power Quality Monitor

    Screen clipping More: fault record HDR report, DMF file information, add time mark, add text mark, clear all time marks, clear all text marks, clear all marks, combined channel display, independent channel display, self-defined calculation channel, impedance locus, difference current analysis, over-excitation analysis, aperiodic component analysis, clip fault file Table 4-10 5.Power Quality Monitor...

  • Page 45: Safety Description

    Before any operation of this equipment, user shall be familiar with safety descriptions, contents of the chapter of technical parameters, and rated parameters marked on equipment nameplate. 6.2 Safety description Warning: Operating electrical equipment has dangerous voltage and violation of safety rules may cause serious personnel injury or equipment damage.
  • Page 46  Labels Check labels of all linking pieces, terminal blocks, indicators, change-over switches, and buttons to ensure satisfaction of engineering requirements.  Equipment cards that can be plugged and unplugged Check each such card to ensure that it can be plugged home without loose screw ...

  • Page 47: Maintenance

    Maintenance 7.1 Arrangement of maintenance schedule After installation of this equipment, periodic inspection and maintenance is recommended. If this equipment runs in severe natural conditions and seldom operates, it shall be confirmed in normal running state or not at certain interval. This equipment has complete self-check function.

  • Page 48: Cleaning

    For operation of a card, antistatic measures shall be taken, e.g. wearing antistatic cuff and placing the card on earthed conducting pad etc.; otherwise electronic device in the card may be damaged. After replacement of CPU card, check the settings. Danger: After replacement of a card, it is necessary to check and ensure identical equipment configuration and external wiring before and after card replacement.

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