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NR Electric PCS-9671 Instruction Manual

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PCS-9671
Transformer Relay
Instruction Manual
NR Electric Co., Ltd.

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Summary of Contents for NR Electric PCS-9671

  • Page 1 PCS-9671 Transformer Relay Instruction Manual NR Electric Co., Ltd.

  • Page 3: Health And Safety

    Documentation for equipment ordered from NR Electric Co., Ltd. is dispatched separately from manufactured goods and may not be received at the same time. Therefore this guide is provided to ensure that printed information normally present on equipment is fully understood by the recipient.

  • Page 4: Instructions And Warnings

    Do not touch the exposed terminals of this equipment while the power is on, as the high voltage generated is dangerous.  Residual voltage Hazardous voltage can be present in the DC circuit just after switching off the power supply. It takes a few seconds for the voltage to discharge. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 5 AND gate: all the input signals are “1”, then the output is “1” OR gate: anyone the input signals is “1”, then the output is “1” RS flipflop (static memory): setting input (S), resetting input (R), output (Q) and inverted output (Q) PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 6 The information in this manual is carefully checked periodically, and necessary corrections will be included in future editions. If nevertheless any errors are detected, suggestions for correction or improvement are greatly appreciated. We reserve the rights to make technical improvements without notice. NR ELECTRIC CO., LTD. Tel: +86-25-87178888, Fax: +86-25-87178999 69 Suyuan Avenue. Jiangning, Nanjing 211102, China Website: www.nrelect.com,...

  • Page 7: Documentation Structure

    Introduce the configurable function (such as protection function configuration, LED configuration, binary input configuration and binary output configuration etc.) of this relay. 10 Communication Introduce the communication port and protocol which this relay can support, the IEC60970-5-103, IEC61850 and DNP3.0 protocols are introduced in details. PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 8: Installation

    A general maintenance policy for this relay is outlined. 14 Decommissioning and Disposal A general decommissioning and disposal policy for this relay is outlined. 15 Manual Version History List the instruction manual version and the modification history records. PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 9: Table Of Contents

    1 Introduction 1 Introduction Table of Contents 1.1 Application........................1-1 1.2 Functions ........................1-2 1.3 Features..........................1-3 List of Figures Figure 1.1-1 Functional diagram of PCS-9671-A ..............1-1 Figure 1.1-2 Functional diagram of PCS-9671-B ..............1-2 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 10 1 Introduction PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 11: Introduction

    The current biased differential protection, instantaneous differential protection and restricted earth fault protection are the main protection elements of PCS-9671. This relay is suited to be wall surface mounted indoors or outdoors or flush mounted into a protection panel.

  • Page 12: Functions

    87UT 50/51G 50/51G side 2 Figure 1.1-2 Functional diagram of PCS-9671-B 1.2 Functions The functions of this relay include protective functions, management functions and auxiliary testing functions, and the functions of this relay are listed in the following tables. ...

  • Page 13: Features

    This device is based on a 32-bit high performance dual-core processor, internal high speed bus and intelligent I/O ports, and the hardware is in module design and can be configured flexibly, featuring interchangeability and easy extension and maintenance. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 14 The CT transient detection function based on the ratio of residual current to positive current is adopted to eliminate the influence of difference of transient characteristic and saturation of various CT to restricted earth fault protection. PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 15: Table Of Contents

    2.6 Protective Functions....................2-5 2.6.1 Current Differential Protection ..................2-5 2.6.2 Restricted Earth Fault Protection..................2-6 2.6.3 Phase Overcurrent protection ..................2-6 2.6.4 Zero Sequence Overcurrent Protection ................2-7 2.6.5 Negative Sequence Overcurrent Protection ..............2-7 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 16 2.6.10 Negative Sequence Overvoltage Protection ..............2-8 2.7 Management Functions....................2-9 2.7.1 Metering Scope and Accuracy..................2-9 2.7.2 Control Performance ......................2-9 2.7.3 Clock Performance ......................2-9 2.7.4 Fault and Disturbance Recording ..................2-9 2.7.5 Binary Input Signal......................2-9 2.8 Certification ........................2-9 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 17: Electrical Specifications

    55% ~ 70% rated voltage “ON” value voltage 70% ~ 120% rated voltage “OFF” value voltage < 50% rated voltage Ma ximum permissible voltage 120% rated voltage Withstand voltage 2000Vac, 2800Vdc (continuously) Resolving time for logic input <1ms PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 18: Binary Output

    Rear panel of the device Housing color Silver grey Device structure Plug-in modular type @ rear side, integrated front plate Protection class Standard IEC 60225-1:2009 Front side IP40 Other sides IP30 Rear side, connection terminals IP20 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 19: Ambient Temperature And Humidity

    Fibre type Multi mode Transmission distance <2km Wave length 1310nm Transmission power Min. -20.0dBm Minimum receiving power Min. -30.0dBm Margin Min +3.0dB 2.4.4 Print Port Type RS-232 Baud Rate 4.8kbit/s, 9.6kbit/s, 19.2kbit/s, 38.4kbit/s, 57.6kbit/s, 115.2kbit/s PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 20: Clock Synchronization Port

    Differential mode: class III 1.0kV IEC60255-22-2:2008 class IV Electrostatic discharge test For contact discharge: 8kV For air discharge: 15kV IEC 60255-22-3:2007 class III Frequency sweep Radio frequency interference Radiated amplitude-modulated tests 10V/m (rms), f=80~1000MHz Spot frequency PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 21: Protective Functions

    2.6.1.1 Biased Differential Protection Pickup up setting [87T.I_Biased] 0.1pu ~ 1.5pu Slope setting [87T.Slope] 0.30 ~ 0.75 harmonic setting for inrush current [87T.K_Hm2] 0.05 ~ 0.35 harmonic setting for inrush current [87T.K_Hm5] 0.05 ~ 0.50 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 22: Restricted Earth Fault Protection

    Tolerance of time setting ≤ 35ms Dropout time Voltage control element Negative overvoltage element setting 2.00V ~ 70.00V Undervoltage element setting 2.00V ~ 120.00V ≤ 2.5% Setting or 0.10V, whichever is greater Tolerance of voltage setting PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 23: Zero Sequence Overcurrent Protection

    0.05×In ~ 3.0×In Pickup current 1.00×Setting Dropout current 0.98×Setting ≤ 2.5% Setting or 0.01×In, whichever is greater Tolerance of reference current setting Time constant setting 0.01s ~ 6000.00s ≤ 35ms Pickup time ≤ 35ms Dropout time PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 24 Dropout voltage 0.95×Setting ≤ 2.5% or 0.10V, whichever is greater Tolerance of voltage setting Time setting 0.03s ~ 100.00s ≤ 50ms Pickup time ≤ 50ms Dropout time ≤ 1% Setting + 50ms Tolerance of time setting PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 25: Management Functions

    5 cycles before pickup of trigger element 2.7.5 Binary Input Signal ≤ 1ms Resolution of binary input signal Binary input mode Potential-free contact ≤ 2ms Resolution of SOE 2.8 Certification  ISO9001: 2008  ISO14001: 2004  OHSAS18001: 2007 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 26 2 Technical Data  ISO10012: 2003  CMMI L5  EMC: 2004/108/EC, EN50263: 1999  Products safety(PS): 2006/95/EC, EN61010-1: 2001 2-10 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 27 3.4.5 CT Saturation Detector ....................3-23 3.4.6 Measures for Anti-unwanted Operation of REF Protection..........3-23 3.4.7 CT Supervision for REF Protection ................3-24 3.4.8 Logic Diagram........................ 3-24 3.4.9 Settings ......................... 3-25 3.5 Overcurrent Protection ................... 3-26 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 28 3.11.1 Zero Sequence Overvoltage Protection ................ 3-55 3.11.2 Settings ........................3-56 3.12 Negative Sequence Overvoltage Protection ........... 3-57 3.12.1 Negative Sequence Overvoltage Protection ..............3-57 3.12.2 Settings........................3-58 3.13 Overexcitation Protection ..................3-58 3.13.1 Overexcitation Protection ..................... 3-59 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 29 Figure 3.5-3 Logic diagram of stage 3 OC protection of side 1 of PCS-9671-B ....3-29 Figure 3.5-4 Logic diagram of OC1 VCE of phase A of side 1 of PCS-9671-B ....3-30 Figure 3.5-5 Operation characteristic of the OC directional element ........ 3-31 Figure 3.5-6 Logic diagram of OC1 directional element of side 1 of PCS-9671-B.....
  • Page 30 Table 3.3-2 Current differential protection settings ............3-16 Table 3.4-1 Restricted earth fault protection settings............3-25 Table 3.5-1 Overcurrent protection settings of PCS-9671-A ..........3-33 Table 3.5-2 Overcurrent protection settings of PCS-9671-B ..........3-34 Table 3.6-1 Zero seque nce overcurrent protection settings ..........3-42 Table 3.7-1 Negative sequence overcurrent protection settings ........

  • Page 31: Overview

    3 Operation Theory 3.1 Overview The PCS-9671 relay is a microprocessor based relay which can provide matur e protection for power transformer. The following sections detail the individual protection functions of this relay. NOTE! In each functional element, the signal input [XXXX.En1] is used for inputting the enabling signals;...
  • Page 32 If the PCS-9671-A is adopted, any one of the phase currents of one side is in excess of the setting of the overcurrent protection of the corresponding side multiplied by 0.95 if the overcurrent protection of the corresponding side is enabled.

  • Page 33: Current Differential Protection

    CT inputs is taken as an example, and side 1 and side 2 of the transformer are connected to side 1 and side 2 inputs of the PCS-9671 respectively. In an ideal situation, the differential current (i.e. Id=I’_S1+I’_S2) should be zero during the normal operation of the transformer or an external fault occurring.
  • Page 34 The current phase compensation for all current transformers is achieved by software, and Y→Δ transforming method is used for this purpose. The vector group of a transformer can be set by the PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 35 1, side 2 and side 3 are 1 o’clock (i.e. 30° lag), 3 o’clock (i.e. 90° lag) and 11 o’clock (i.e. 330° lag) respectively. In Equation 3.3-1, “ ” represent the matrix of relative o’clock 1, 3, 11 respectively. PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 36: Table 3.3-1 Matrix Of Phase Compensation And Zero Sequence Current Elimination

                                       PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 37  Calculate rated secondary current of each side Here side 1 is taken as an example to give the calculation equation. PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 38: Sensitive Biased Differential Protection Element

    Besides, four blocking elements, CT saturation, inrush current (optional), overexciation (optional) and CT circuit failure (optional), are equipped for the protection to prevent it from unwanted operation during an external fault. Operation criterion of this sensitive biased differential protection is: PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 39: Conventional Biased Differential Protection Element

    3.3.4 Unrestrained Instantaneous Differential Protection Element The aim of unrestrained instantaneous differential protection for a transformer is to accelerate the trip when a serious inner fault occurs. Therefore the element does not need any block element, PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 40: Operation Characteristic Of Current Differential Protection

    The unrestrained instantaneous differential element in the PCS-9671 shall operate to trip breakers at all sides of a transformer when the differential current of any phase is higher than its setting. Its operation criterion is: ...

  • Page 41: Inrush Current Detection Element

    Composite blocking mode When the maximum value of fundamental component and maximum value of secondary harmonic of three phase differential currents satisfy the following equation, three-phase differential protection are blocked. The criterion is as following. PCS-9671 Transformer Relay 3-11 Date: 2014-10-28...

  • Page 42: Ct Saturation Detection Element

    Therefore the overexcitation shall be discriminated to block differential protection. The fifth harmonic of differential current is used as the criterion of overexcitation discrimination.   Equation 3.3-12 Where: 3-12 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 43: Ct Supervision For Current Differential Protection

    “1” and binary input of blocking differential protection is set as “0”. Any one of following three criteria is met after fault detector (FD) of biased differential protection pickup, CT circuit failure discrimination will not be carried out. PCS-9671 Transformer Relay 3-13 Date: 2014-10-28...
  • Page 44 “Before FD pickup” mentioned in the above figure represents the time 2 cycles (i.e. 40ms) before the fault detector picks up. When the CT circuit failure is distinguished, then the CT circuit failure alarm will be issued with 3-14 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 45: Logic Diagram

    ≥1 & & & [87T.Op_Biased] Flg_Inrush Flg_CT_Sat ≥1 & Flg_OvExc [87T.En_Hm5_Blk] & Flg_CTS [87T.En_CTS_Blk] FD_Diff Figure 3.3-5 logic diagram of the current differential protection Where: “Ida”, “Idb” and “Idc” are three phase differential current. PCS-9671 Transformer Relay 3-15 Date: 2014-10-28...

  • Page 46: Settings

    The setting of differential current abnormality alarm 0.04 ~ 1.2pu 0.001 The logic setting of enabling/disabling unrestrained 0: disable 87T.En_Instant instantaneous differential protection. 1: enable The logic setting of enabling/disabling conventional 0: disable 87T.En_Biased biased differential protection. 1: enable 3-16 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 47 NOTE! “BO_Trp01” just means to drive the corresponding output contact to pickup and please refer to Chapter 6. The terminals of these tripping outputs are: Trip output Terminals BO_Trp01 0908~0909 BO_Trp02 0910~0911 BO_Trp03 0912~0913 BO_Trp04 0914~0915 BO_Trp05 0916~0917 PCS-9671 Transformer Relay 3-17 Date: 2014-10-28...

  • Page 48: Restricted Earth Fault Protection

    CT on neutral point of the side must have been checked right by an energizing test of the side or a test of simulating an external fault of the side in primary system. Otherwise a maloperation may occur during an external earth fault. 3-18 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 49: Current Compensation

    1. “3I0_NP” is measured residual current from neutral CT of side 1. 3.4.1 Current Compensation 3.4.1.1 Amplitude Compensation During the normal operation, the calculated residual current and measured residual current may PCS-9671 Transformer Relay 3-19 Date: 2014-10-28...
  • Page 50 4. 3.4.1.2 Calculate Residual Differential and Restraint Current The operation criteria of the REF protection of side 1, side 2 and side 3 are Equation 3.4-2, Equation 3.4-3 and Equation 3.4-4 respectively. 3-20 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 51: Sensitive Biased Ref Protection Element

    [Sx.64REF.I_Biased] (x=1, 2 or 3) is the biased restraint coefficient, and “0.5” is recommended. “ ” is rated secondary current of neutral CT of the side. “ ” is calculated residual current of the corresponding side. PCS-9671 Transformer Relay 3-21 Date: 2014-10-28...

  • Page 52: Conventional Biased Ref Protection Element

    (1) The sensitive biased REF protection element will send tripping signal with blocking by CT saturation. It can ensure the sensitivity of the protection and avoid an unwanted operation when CT is saturated during an external fault. Its operation area is the tint shadow area in the 3-22 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 53: Ct Saturation Detector

    Positive-sequence current restraint blocking criterion is shown below.    Equation 3.4-8 Where: “I ” is the zero sequence current at one side. “I ” is positive-sequence current of corresponding side. “ ” is a proportional constant. PCS-9671 Transformer Relay 3-23 Date: 2014-10-28...

  • Page 54: Ct Supervision For Ref Protection

    FD_REF_S3 Figure 3.4-4 Logic diagram of restricted earth fault protection of side 1 Where: “S1” “S2” and “S3” represent side 1, side 2 and side 3 respectively. “I_Neu” is neutral current of some side. 3-24 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 55: Settings

    The number of three-phase current input for REF S2.CTNum protection of side 2. The logic setting of enabling/disabling REF 0: disable S2.64REF.En protection of side 2. 1: enable S2.64REF.OutMap The output matrix setting of REF protection of side 2. 0x000~0xFFF PCS-9671 Transformer Relay 3-25 Date: 2014-10-28...

  • Page 56: Overcurrent Protection

    Stage 1, 2, 3, 4, 5 Stage 1, 2, 3 3.5.1 Definite Time Overcurrent Protection The PCS-9671-A provides a one-stage definite time overcurrent protection for each side of the power transformer. The logic diagram of the overcurrent protection of the PCS-9671-A is shown as below.
  • Page 57 2 can be controlled with the harmonic blocking element. The logic diagram of the stage 1 overcurrent protection of side 1 of the PCS-9671-B is shown as below. PCS-9671 Transformer Relay...
  • Page 58 The stage 2 overcurrent protection of side 1 has the similar logic diagram with the stage 1 overcurrent protection of side 1. The logic diagram of the stage 3 overcurrent protection of side 1 of the PCS-9671-B is shown as below.

  • Page 59: Voltage Control Element

    [S1.50/51P3.Op] [S1.50/51P3.En] [S1.50/51P3.En1] [S1.50/51P3.Blk] Figure 3.5-3 Logic diagram of stage 3 OC protection of side 1 of PCS-9671-B Where: [S1.50/51P3.I_Set] is the current setting of the stage 3 overcurrent protection of side 1. “t ” is the setting [S1.50/51P3.t_Op], the time setting of the stage 3 overcurrent OC3_S1 protection of side 1.

  • Page 60: Directional Element

    & [S1.50/51P.En_VCE_CrossCtrl] [S1.50/51P1.En_VCE] Figure 3.5-4 Logic diagram of OC1 VCE of phase A of side 1 of PCS-9671-B Where: [S1.50/51P.Upp_VCE] is the voltage setting of the undervoltage control element. [S1.50/51P.U2_VCE] is the voltage setting of the negative sequence voltage control element.
  • Page 61 “1”, operation of the voltage transformer supervision (VTS) will block the stage if the relevant directional element is in service. When the relevant setting is set as “0”, the stage will revert to non-directional upon operation of the VTS. PCS-9671 Transformer Relay 3-31 Date: 2014-10-28...

  • Page 62: Harmonic Blocking Element

    Check Ubc(in memory) [S1.50/51P1.Opt_Dir] ≠ 0 Figure 3.5-6 Logic diagram of OC1 directiona l element of side 1 of PCS-9671-B Where: [S1.50/51P1.Opt_Dir] is the setting which is used to select the directional mode (non-directional, forward, reverse) of the directional element for the stage 1 overcurrent protection of side 1.

  • Page 63: Settings

    | > [S1.50/51P.K_Hm2] max2 [S1.50/51P.Opt_Hm_Blk] [S1.50/51P1.En_Hm_Blk] Figure 3.5-7 Logic diagram of OC1 harmonic element of side 1 of PCS-9671-B Where: [S1.50/51P1.En_HarmBlk] is the logic setting of the harmonic blocking element of the stage 1 overcurrent protection of side 1. [S1.50/51P.K_Hm2] is the percent setting of the harmonic blocking element for the overcurrent protection of side 1.

  • Page 64: Table 3.5-2 Overcurrent Protection Settings Of Pcs-9671-B

    The logic setting of the overcurrent protection of side 3 1: enable The output matrix setting of the overcurrent S3.50/51P.OutMap 0x000~0xFFF protection of side 3 Table 3.5-2 Overcurrent protection settings of PCS-9671-B Menu text Explanation Range Step The voltage s etting of the negative sequence S1.50/51P.U2_VCE...
  • Page 65 1 The time setting of the stage 5 overcurrent S1.50/51P5.t_Op 0~100s 0.001s protection of side 1 The logic setting of the harmonic blocking element S1.50/51P5.En_Hm_Blk for the stage 5 overcurrent protection of side 1 PCS-9671 Transformer Relay 3-35 Date: 2014-10-28...
  • Page 66 The output matrix setting of the stage 3 0x000 ~ S2.50/51P3.OutMap overcurrent protection of side 2 0xFFF  Setting Explanation [Sx.50/51P.OutMap] (x=1, 2 or 3), [Sx.50/51Py.OutMap] (x=1 or 2; y=1, 2, 3, 4 or 5) 3-36 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 67: Zero Sequence Overcurrent Protection

    Main Menu -> Settings -> Prot Setting-> OC Settings 3.6 Zero Sequence Overcurrent Protection The PCS-9671-B provides a five-stage zero sequence overcurrent protection for side 1 and a two-stage zero sequence overcurrent protection for side 2. Each stage can be enabled or disabled independently by the corresponding logic setting respectively.
  • Page 68 In this case, the zero sequence current for tripping can be calculated or directly derived from a zero sequence current transformer. The logic diagram of the zero sequence overcurrent protection of side 1 of the PCS-9671-B is shown as below.

  • Page 69: Directional Element

    “S1.50/51Gx.HmBlk” (x: 1~3) denotes the status of the harmonic blocking element of side 1, see Section 3.6.3 for more details about the harmonic blocking element. The logic diagram of the zero sequence overcurrent protection of side 2 of the PCS-9671-B is shown as below.
  • Page 70 The detailed logic diagram of the zero sequence directional element of the stage 1 zero sequence overcurrent protection of side 1 is shown as below. The logic diagrams of the directional elements of other stages of zero sequence overcurrent protections can be gotten on the analogy of this. 3-40 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 71: Harmonic Blocking Element

    Figure 3.6-5 Logic diagram of the ROC1 harmonic blocking element Where: [S1.50/51G1.En_Hm_Blk] is the logic setting of the harmonic blocking element of side 1. [S1.50/51G.K_Hm2] is the percent setting of the harmonic blocking element of side 1. PCS-9671 Transformer Relay 3-41 Date: 2014-10-28...

  • Page 72: Settings

    2 zero sequence overcurrent protection of side 1, see Section 3.6.2 The logic setting of the harmonic blocking element S1.50/51G2.En_Hm_Blk for the stage 2 zero sequence overcurrent protection of side 1 3-42 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 73 The current setting of the stage 1 zero sequence S2.50/51G1.3I0_Set 0.05In~30In 0.001A overcurrent protection of side 2 The time setting of the stage 1 zero sequence S2.50/51G1.t_Op 0~100s 0.001s overcurrent protection of side 2 PCS-9671 Transformer Relay 3-43 Date: 2014-10-28...

  • Page 74: Negative Sequence Overcurrent Protection

    Main Menu -> Settings -> Prot Setting-> EF Settings 3.7 Negative Sequence Overcurrent Protection The PCS-9671-B provides a one-stage negative sequence overcurrent protection for each side. Each stage can be enabled or disabled independently by the corresponding logic setting respectively.

  • Page 75: Definite Time Negative Sequence Overcurrent Protection

    1 0xFFF The current s etting of the negative sequence S2.50/51Q1.I2_Set 0.05In~4In 0.001A overcurrent protection of side 2 The time setting of the negative sequence S2.50/51Q1.t_Op 0.03~100s 0.001s overcurrent protection of side 2 PCS-9671 Transformer Relay 3-45 Date: 2014-10-28...

  • Page 76: Thermal Overload Protection

    All protection settings are accessible in the following path: Main Menu -> Settings -> Prot Setting-> NegOC Settings 3.8 Thermal Overload Protection The PCS-9671-B provides a one-stage thermal overload protection for side 1. The configuration of negative sequence overcurrent protection is listed as below. ...
  • Page 77 The thermal overload protection also can be used to issue an alarm signal [S1.49.Alm], if the logic setting [S1.49.En_Alm] is set as “1”. If the thermal accumulation is less than 1% operation threshold, it is though that the thermal dissipation is finished completely, and the signal [S1.49.Cleared] will be issued. PCS-9671 Transformer Relay 3-47 Date: 2014-10-28...

  • Page 78: Settings

    1.0~3.0 0.001 formula of side 1 The factor setting of the thermal overload alarm S1.49.K_Alm element which is associated to the thermal state 1.0~3.0 0.001 formula of side 1 3-48 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 79: Undervoltage Protection

    All protection settings are accessible in the following path: Main Menu -> Settings -> Prot Setting-> ThOvLd Settings 3.9 Undervoltage Protection The PCS-9671-B provides a three-stage undervoltage protection for side 1. The configuration of undervoltage protection is listed as below. ...
  • Page 80 Ub < [27P1.U_Set] & [27P1.Op] Uc < [27P1.U_Set] [BI_52b] 27P.LostVolt [27P1.En] [27P1.En1] [27P1.Blk] Figure 3.9-2 Logic diagram of the stage 1 undervoltage protection Where: [27P1.U_Set] is the voltage setting of the stage 1 undervoltage protection. 3-50 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 81: Settings

    The dropout coefficient setting of the stage 2 27P2.K_DropOut 1.03~3.0 0.001 undervoltage protection The logic setting of the stage 2 undervoltage 27P2.En protection The output matrix setting of the stage 2 0x000 ~ 27P2.OutMap undervoltage protection 0xFFF PCS-9671 Transformer Relay 3-51 Date: 2014-10-28...

  • Page 82: Overvoltage Protection

    All protection settings are accessible in the following path: Main Menu -> Settings -> Prot Setting-> VoltProt Settings 3.10 Overvoltage Protection The PCS-9671-B provides a three-stage overvoltage protection for side 1. The configuration of overvoltage protection is listed as below. ...
  • Page 83 [59P1.En1] is the binary signal for enabling the stage 1 overvoltage protection. [59P1.Blk] is the binary signal for blocking the stage 1 overvoltage protection. The stage 2 and stage 3 overvoltage protections have the similar logic diagram with the stage 1 overvoltage protection. PCS-9671 Transformer Relay 3-53 Date: 2014-10-28...

  • Page 84: Settings

    59P3.OutMap overvoltage protection 0xFFF  Setting Explanation [59Px.OutMap] (x=1, 2 or 3) The output matrix setting has the same meaning as the setting [87T.OutMap] and please refer it in Section 3.3.11 for the details. 3-54 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 85: Zero Sequence Overvoltage Protection

    All protection settings are accessible in the following path: Main Menu -> Settings -> Prot Setting-> VoltProt Settings 3.11 Zero Sequence Overvoltage Protection The PCS-9671-B provides a three-stage zero sequence overvoltage protection for side 1. The configuration of zero sequence overvoltage protection is listed as below. ...

  • Page 86: Settings

    The output matrix setting has the same meaning as the setting [87T.OutMap] and please refer it in Section 3.3.11 for the details.  Setting Path All protection settings are accessible in the following path: Main Menu -> Settings -> Prot Setting-> ROV Settings 3-56 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 87: Negative Sequence Overvoltage Protection

    3 Operation Theory 3.12 Negative Sequence Overvoltage Protection The PCS-9671-B provides a two-stage negative sequence overvoltage protection for side 1. The configuration of negative sequence overvoltage protection is listed as below.  PCS-9671-A Not supported.  PCS-9671-B A two-stage negative sequence overvoltage protection is provided for the side 1.

  • Page 88: Settings

    All protection settings are accessible in the following path: Main Menu -> Settings -> Prot Setting-> NegOV Settings 3.13 Overexcitation Protection The PCS-9671-B provides a two-stage overexcitation protection for side 1. The configuration of overexcitation protection is listed as below. ...

  • Page 89: Table 3.13-1 Overexcitation Protection Settings

    The stage 2 overexcitation protection has the similar logic diagram with the stage 1 overexcitation protection. 3.13.2 Settings Table 3.13-1 Overexcitation protection settings Menu text Explanation Range Step The ratio setting of the stage 1 overexcitation 24DT1.K_Set 1.00~2.00 0.001 protection PCS-9671 Transformer Relay 3-59 Date: 2014-10-28...
  • Page 90 The output matrix setting has the same meaning as the setting [87T.OutMap] and please refer it in Section 3.3.11 for the details.  Setting Path All protection settings are accessible in the following path: Main Menu -> Settings -> Prot Setting-> OverExc Prot Settings 3-60 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 91: List Of Figures

    Table 4.4-1 Description of equipment self-check alarm message ........4-5 Table 4.4-2 Troubleshooting for equipment self-check alarm message ......4-6 Table 4.4-3 Descripton of equipment operation alarm message.......... 4-8 Table 4.4-4 Troubleshooting for equipment operation alarm message ....... 4-8 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 92 4 Supervision PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 93: Overview

    If anyone of the items of the setting file is changed (the program of this relay is updated), the alarm signal [Fail_SettingItem_Chgd] will be issued, The LED indicator “HEALTHY” will be off at the same time. The items of the setting include the setting number, the setting name, the setting PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 94: Auxiliary Test Supervision

    When the voltage transformer status returns to normal condition, the alarm will restore automatically 1.25s later. In case the voltage transformer circuit is failed, these protective elements dependent on voltage will be blocked. PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 95: Ct Circuit Supervision

    CT circuit abnormality alarm will be issued after 10 s without blocking differential protection. (1) Any phase differential current is greater than setting [87T.I_Alm]. > α + β × I (2) I d_1st.max Where: “I ” is negative-sequence differential current. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 96 If the alarm is issued, the alarm signal can be reset and “ ALARM ” can be turned off only after the failure is removed and the binary input [BI_RstTarg] is energized or manually send command “Reset_Target” through relay menu, or receiving reset message from SCADA or gateway. PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 97: Thermal Overload Supervision

    (Device is blocked, “HEALTHY” LED is lit off, “ALARM” LED is lit on) Fail_Device The device fails. Fail_Setting_OvRange An y on of the setting values are out of range. Mismatch between the configuration of plug-in modules and the designing Fail_BoardConfig drawing of an applied-specific project. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 98 “Settings” and select “Confirm Settings” item to confirm Fail_SettingItem_Chgd settings. Then the equipment will restore to normal operation stage. Fail_FPGA Fail_Sample Please inform the manufacturer or the agent for maintenance Fail_Settings PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 99: Equipment Operation Alarm

    4.4.2 Equipment Operation Alarm During the equipment normal operation, CT circuit and some binary input circuits are always monitored by the relay. If any abnormality of them occurs or any alarm element operates, the PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 100 CT secondary circuit or primary system, please finish troubleshooting according to the operating S3.64REF.Alm instructions of protection relay. VTS.Alm Please check the secondary circuit of the voltage transformer. S1.49.Alm Please check whether the thermal overload condition is satisfied. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 101 Table of Contents 5.1 Overview ........................5-1 5.2 Measurement ........................5-1 5.2.1 Protection Measurement ....................5-1 5.2.2 Fault Detector Measurement.................... 5-1 5.2.3 Metering .......................... 5-1 5.3 Signaling ........................5-1 5.4 Event Recording ......................5-2 5.5 Fault and Disturbance Recording ................5-2 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 102 5 Management PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 103 The binary input state change confirmation time of each binary input is configurable according to practical application through the PCS-Explorer configuration tool auxiliary software, and the default binary input state change confirmation time of the binary inputs is 10ms. PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 104: Event Recording

    Each waveform includes the wave recording data both before and after the fault. Each trigger element operation will extend the wave recording time, until the appointed time delay is over after the trigger element restores, or until the maximum number of wave recording points is reached. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 105 Figure 6.5-1 View of the main CPU module ................6-6 Figure 6.6-1 View of the analog input module............... 6-7 Figure 6.7-1 View of the binary output module ..............6-11 Figure 6.8-1 View of the binary input module ..............6-12 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 106 6 Hardware PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 107: Overview

    Must be in the No.4 and No.5 slots . Binary output module Must be in the No.6 slot. Binary input module Must be in the No.7 slot. The following two figures show the front panel and the rear panel of this device. PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 108: Basic Enclosure

    NOTE! The No.8 slot is reserved for some special demands, if the present hardware configuration can not meet the special demands. 6.2 Basic Enclosure The basic enclosure of this relay is an electronic equipment rack (see Figure 6.2-1) with an PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 109: Human Machine Interface Module (Nr4856)

    There are two types of main power supply modules: NR4304A and NR4305A. The module NR4304A can support 110V~250V power supply input; and the module NR4305A can support 24V~48V power supply input. The view of the power supply module is shown in Figure 6.4-1. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 110 The No.4 programmable tripping output contact (NO). BO_Trp05 The No.5 programmable tripping output contact (NO). BO_Trp06 The No.6 programmable tripping output contact (NO). PWR+ DC power supply positive input PWR- DC power supply negative input Grounded terminal PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 111: Main Cpu Module (Nr4106)

    IRIG-B signal, this module can synchronize local clock with the standard clo ck. There are three types of main CPU modules, and the view of the main CPU module is shown in Figure 6.5-1. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 112 Pin connections on the connector of the main CPU module NR4106B (or NR4106AB): Pin No. Sign Description SYN+ The EIA RS-485 standardized interface for time synchronization, PPS and SYN- IRIG-B signals are permitted. SGND Not used PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 113: Analog Input Module (Nr4412/Nr4414)

    The module NR4412/NR4414 with 24 pins provides 12 analogue input channels and the view of the analog input module is shown in Figure 6.6-1. NR4412 NR4414 Figure 6.6-1 View of the analog input module PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 114 6 Hardware A 24-pin connector is fixed on the front side of this module. The terminal definition of the connector is described as below. Pin connections on the connector of the analog input module NR4412 for PCS-9671-A: Pin No. Sign...

  • Page 115: Current Transformer Requirements

    Rated primary current (amps) Rated continuous thermal current (amps) Rated short-time thermal current (amps) Rated dynamic current (amps) Rated secondary current (amps) Accuracy limit factor: K Rated accuracy limit primary current (amps)  Performance Verification PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 116: Binary Output Module (Nr4521)

    It also can output some alarm signals from the main CPU module. There is only one type of binary output module: NR4521C. The view of the binary output module is shown below. 6-10 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 117 The No.1 programmable signal binary output (NO). BO_Sig02 The No.2 programmable signal binary output (NO). BO_Sig03 The No.3 programmable signal binary output (NO). BO_Sig04 The No.4 programmable signal binary output (NO). BO_Sig05 The No.5 programmable signal binary output (NC). PCS-9671 Transformer Relay 6-11 Date: 2014-10-28...

  • Page 118: Binary Input Module (Nr4501/Nr4502/Nr4503/Nr4504)

    The No.5 programmable binary input. BI_06 The No.6 programmable binary input. BI_07 The No.7 programmable binary input. BI_08 The No.8 programmable binary input. BI_09 The No.9 programmable binary input. BI_10 The No.10 programmable binary input. 6-12 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 119 The No.10 programmable binary input BI_10- BI_11+ The No.11 programmable binary input BI_11- Pin connections on the 22-pin connector of the binary input module NR4503: Pin No. Sign Description BI_01+ The No.1 programmable binary input. BI_01- PCS-9671 Transformer Relay 6-13 Date: 2014-10-28...
  • Page 120 The common negative connection of the BI_09 and BI_10. BI_11 The No.11 programmable binary input. BI_12 The No.12 programmable binary input. BI_Opto6- The common negative connection of the BI_11 and BI_12. BI_13 The No.13 programmable binary input. 6-14 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 121 6 Hardware Pin No. Sign Description BI_14 The No.14 programmable binary input. BI_Opto7- The common negative connection of the BI_13 and BI_14. Not used PCS-9671 Transformer Relay 6-15 Date: 2014-10-28...
  • Page 122 6 Hardware 6-16 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 123 Table 7.2-1 System settings....................7-1 Table 7.3-1 Current differential protection settings...............7-4 Table 7.3-2 Restricted earth fault protection settings ............7-5 Table 7.3-3 Overcurrent protection settings of PCS-9671-A ..........7-6 Table 7.3-4 Overcurrent protection settings of PCS-9671-B ..........7-7 Table 7.3-5 Zero sequence overcurrent protection settings ..........7-9 Table 7.3-6 Negative sequence overcurrent protection settings ........7-12...
  • Page 124 Table 7.3-9 Zero sequence overvoltage protection settings..........7-15 Table 7.3-10 Negative sequence overvoltage protection settings ........7-15 Table 7.3-11 Overexcitation protection settings ..............7-16 Table 7.4-1 Device settings ....................7-17 Table 7.4-2 Communication settings..................7-18 Table 7.4-3 Auxiliary settings ....................7-21 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 125: Overview

    Primary rated current of neutral CT of side 1 0~9999 S1.Neu.I2n Secondary rated current of neutral CT of side 1 1A or 5 A S2.Neu.I1n Primary rated current of neutral CT of side 2 0~9999 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 126 [Clk_S3_WRT_S1] should be set as “0”, “0” and “11” respectively. NOTE! To the PCS-9671-A, for a two-winding transformer, we treat side 1 as the high voltage side and side 3 as the low voltage side; and for a three-winding transformer, we treat side 1 as the high voltage side, side 2 as the middle voltag e side and side 3 as the low voltage side.

  • Page 127: Protection Settings

    CT as “1A” or “5A” and short current input terminals of the unused side of the equipment. For example, if the PCS-9671-A is applied to the protection of a two-winding transformer with two side current inputs, then current inputs of side 1 and side 3 of the equipment can be used as inputs of HV side and LV side of the transformer.

  • Page 128: Settings Of Current Differential Protection

    87T.K_Hm5 0.05 ~ 0.5 0.001 detection. 87T.I_Alm The setting of differential current abnormality alarm 0.04 ~ 1.2pu 0.001 The logic setting of enabling/disabling unrestrained 0: disable 87T.En_Instant instantaneous differential protection. 1: enable PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 129: Settings Of Restricted Earth Fault Protection

    0.1 ~ 1.5In 0.001In The restraint slope of sensitive biased REF protection S2.64REF.Slope 0.2 ~ 0.75 0.001 of side 2. S2.64REF.t_Op The time delay setting of REF protection of side 2 0 ~ 100s 0.001s PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 130: Settings Of Overcurrent Protection

    The output matrix setting of REF protection of side 3. 0x000~0xFFF 7.3.3 Settings of Overcurrent Protection All settings of overcurrent protection are accessible in the following path: Main Menu -> Settings -> Prot Setting-> OC Settings Table 7.3-3 Overcurrent protection settings of PCS-9671-A Menu text Explanation Range Step The current setting of the overcurrent protection of S1.50/51P.I_Set...
  • Page 131 The logic setting of the overcurrent protection of side 3 1: enable The output matrix setting of the overcurrent S3.50/51P.OutMap 0x000~0xFFF protection of side 3 Table 7.3-4 Overcurrent protection settings of PCS-9671-B Menu text Explanation Range Step The voltage s etting of the negative sequence S1.50/51P.U2_VCE...
  • Page 132 1 The output matrix setting of the stage 5 0x000 ~ S1.50/51P5.OutMap overcurrent protection of side 1 0xFFF The percent setting of the harmonic blocking S2.50/51P.K_Hm2 0.05~1.00 0.001 element for OC protection of side 2 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 133: Settings Of Zero Sequence Overcurrent Protection

    Main Menu -> Settings -> Prot Setting-> EF Settings Table 7.3-5 Zero sequence overcurrent protection settings Menu text Explanation Range Step The relay characteristic angle for the directional S1.50/51G.RCA -180° ~179° 1° zero sequence overcurrent protection of side 1 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 134 The time setting of the stage 3 zero sequence S1.50/51G3.t_Op 0~100s 0.001s overcurrent protection of side 1 The setting is used to select the directional mode S1.50/51G3.Opt_Dir for the stage 3 zero sequence overcurrent protection of side 1, see Section 3.6.2 7-10 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 135 The current setting of the stage 2 zero sequence S2.50/51G2.3I0_Set 0.05In~30In 0.001A overcurrent protection of side 2 The time setting of the stage 2 zero sequence S2.50/51G2.t_Op 0~100s 0.001s overcurrent protection of side 2 PCS-9671 Transformer Relay 7-11 Date: 2014-10-28...

  • Page 136: Settings Of Negative Sequence Overcurrent Protection

    1 The time constant setting of the thermal overload S1.49.Tau 10~6000s 0.001s protection of side 1 The thermal dissipation constant setting of the S1.49.C_Disspt 0.2~5.0 0.001 thermal overload protection of side 1 7-12 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 137: Settings Of Undervoltage And Overvoltage Protections

    The dropout coefficient setting of the stage 2 27P2.K_DropOut 1.03~3.0 0.001 undervoltage protection The logic setting of the stage 2 undervoltage 27P2.En protection The output matrix setting of the stage 2 0x000 ~ 27P2.OutMap undervoltage protection 0xFFF PCS-9671 Transformer Relay 7-13 Date: 2014-10-28...
  • Page 138 The dropout coefficient setting of the stage 3 59P3.K_DropOut 0.93~0.97 0.001 overvoltage protection The logic setting of the stage 3 overvoltage 59P3.En protection The output matrix setting of the stage 3 0x000 ~ 59P3.OutMap overvoltage protection 0xFFF 7-14 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 139: Settings Of Zero Sequence Overvoltage Protection

    Table 7.3-10 Negative sequence overvoltage protection settings Menu text Explanation Range Step The voltage setting of the stage 1 negative 59Q1.U2_Set 2~120V 0.001V sequence overvoltage protection The time setting of the stage 1 negative sequence 59Q1.t_Op 0.03~100s 0.001s overvoltage protection PCS-9671 Transformer Relay 7-15 Date: 2014-10-28...

  • Page 140: Settings Of Overexcitation Protection

    The output matrix setting of the stage 2 0x000 ~ 24DT2.OutMap overexcitation protection 0xFFF 7.4 Device Related Settings The device related settings (in the submenu “Device Setup”) are used for setting the operation parameters and communication parameters of this device. 7-16 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 141: Device Settings

    CPU module to backup and restore programs, settings and configurations. 7.4.2 Communication Settings All communication settings are accessible in the following path: Main menu -> Settings -> Device Setup -> Comm Settings PCS-9671 Transformer Relay 7-17 Date: 2014-10-28...
  • Page 142 These setting are used to enable/disable IP addresses of Ethernet 2, 3 and 4 respectively. IP address of Ethernet 1 is enabled fixedly. “1”: enable the IP address of Ethernet port and the corresponding IP address setting is needed to 7-18 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 143 [Alm_TimeSyn] will not be issued anymore. “Conventional” mode and “SAS” mode are always be supported by device, but “Advanced” mdoe is only supported when NET-DSP module is equipped. The alarm signal [Alm_TimeSyn] may be PCS-9671 Transformer Relay 7-19 Date: 2014-10-28...

  • Page 144: Auxiliary Settings

    West 6 West 7 West 8 West 9 West 10 West 11 Setting 7.4.3 Auxiliary Settings All auxiliary settings are accessible in the following path: Main menu -> Settings -> Device Setup -> Aux Settings 7-20 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 145 “0”: The postitve polarity of the neutral current transformer is at netural side and the neutral current is from the netural point to ground. “1”: The postitve polarity of the neutral current transformer is at ground side and the neutral current is from the ground to netural. PCS-9671 Transformer Relay 7-21 Date: 2014-10-28...
  • Page 146 7 Settings 7-22 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 147 8.3.1 Display When Tripping ....................8-25 8.3.2 Display under Abnormal Condition ................. 8-27 8.4 Password Protection ....................8-28 List of Figures Figure 8.1-1 Front panel of PCS-9671 ..................8-1 Figure 8.1-2 Keypad on the front panel ................. 8-2 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 148 Figure 8.4-1 Password input interface for control operation and device setting modification ............................... 8-28 Figure 8.4-2 Password input interface for modifying settings ........... 8-29 List of Tables Table 8.1-1 Definition of the 8-core cable ................8-3 Table 8.2-1 Device logs list....................8-15 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 149: Design

    LCD. Operator can locate the data of interest by navigating the keypad. PCS-9671 TRANSFORMER RELAY HEALTHY ALARM Figure 8.1-1 Front panel of PCS-9671 The function of HMI module: Item Description A 240× 128 dot matrix backlight LCD display is visible in dim lighting conditions.

  • Page 150: Keypad And Keys

    When this relay is in normal operating situation. AL ARM Steady Yellow When any abnormality alarm is issued. When this relay is in normal operating situation. TRIP Steady Red When any protection element is operated. PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 151: Front Communication Port

    TX+ of the Ethernet port P1-1 P2-1 Orange & white TX- of the Ethernet port P1-2 P2-2 Green & white RX+ of the Ethernet port P1-3 P2-3 Blue TXD of the RS-232 serial port P1-4 P3-2 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 152: Understand The Hmi Menu Tree

    When the default screen is being shown, press key “▲” to enter the main menu of this relay. Measurements Status Records Settings Print Local Cmd Figure 8.2-2 Main menu display of this relay The following figure shows the menu tree structure of this device. PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 153: Submenu Of "Measurements

    Measurements1 To display the measurement values for protection measurements To display the measurement values for the fault detector Measurements2 measurements Measurements3 To display the measurement values for metering measurements The submenu “Measurements1” has following submenus. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 154 0.002 Ie Figure 8.2-4 LCD display of the protection secondary measurement values The following tables show all the measurement values of this relay.  Protection measurement values Symbol Description The phase A differential current (fundamental component) PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 155 Angle between phase A current and phase B current of side 1 S1.Ang(Ib-Ic) Angle between phase B current and phase C current of side 1 S1.Ang(Ic-Ia) Angle between phase C current and phase A current of side 1 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 156 Residual differential current of REF protection of s ide 2. S3.64REF.I0d_Pkp Residual differential current of REF protection of side 3. Ua_Pkp Voltage of phase A Ub_Pkp Voltage of phase B Uc_Pkp Voltage of phase C Uab_Pkp Voltage of phase A to phase B PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 157: Submenu Of "Status

    Outgoing reactive energy PHr- Incoming active energy QHr- Incoming reactive energy 8.2.4 Submenu of “Status” Purpose: This menu is used to view the state of the binary inputs, binary outputs and supervision alarm elements of this relay. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 158 Press key “▲” or “▼” to locate the cursor on the submenu “Contact Inputs” and press key “ENT” to enter this submenu. Press key “▲” or “▼” to view the expected binary inputs. 8-10 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 159 Binary input of resetting signal of protection device Binary input of indicating the protection device is under maintenance BI_Maintenance state  Binary output status Symbol Description The virtual signal indicates whether the positive power of tripping output BO_Pkp is switched on. PCS-9671 Transformer Relay 8-11 Date: 2014-10-28...

  • Page 160: Submenu Of "Records

    Superv Events To display the supervision alarm records IO Events To display the records of binary state change records Device Logs To display the device operation reports Control Logs To display the local/remote control records 8-12 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 161 “ENT” to enter this submenu. If there is no report in the selected submenu, it will show “No Report!” on the LCD. Press key “+” or “-” to view the expected history alarm report. PCS-9671 Transformer Relay 8-13 Date: 2014-10-28...
  • Page 162 Other lines show the binary state change information one by one. For more information about the binary signals, see Section 8.2.4.1. 8.2.5.4 View History Device Log The history user operation report stores the user operation information and user operation ti me. Operating steps: 8-14 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 163 Press key “▲” or “▼” to locate the cursor on the submenu “Records” and press key “ENT” to enter this submenu. Press key “▲” or “▼” to locate the cursor on the submenu “Clear Records” and press key “ENT” to clear all the history reports. PCS-9671 Transformer Relay 8-15 Date: 2014-10-28...

  • Page 164: Submenu Of "Settings

    The submenu “Logic Links” has following submenus. Item Description GOOSE Links To view and modify the GOOSE link settings The submenu “Device Setup” has following submenus. Item Description Comm Settings To view and modify the communication settings 8-16 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 165 15.000 A S2.50/51P.t_Op 0.100 s S2.50/51P.En Figure 8.2-11 LCD display of the selected protection settings 8.2.6.2 Modify the Settings The settings can be modified through the local HMI to meet the demand of practical engineering. PCS-9671 Transformer Relay 8-17 Date: 2014-10-28...
  • Page 166 [Active_Grp] in submenu “System Settings”. Another method is detailed as following operating steps. Operating steps: Press key “GRP” to enter the setting group switch interface in the default displaying situation. 8-18 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 167: Active Group

    To print the monitor and control settings Logic Links To print the virtual enabling binary input settings Device Setup To print the device and communication settings All Settings To print all the settings of this device PCS-9671 Transformer Relay 8-19 Date: 2014-10-28...

  • Page 168: Submenu Of "Local Cmd

    This menu is used to operate this device locally, such as signal resetting, triggering an oscillograph, etc. Access approach: Move cursor to the item “Local Cmd” and press key “ENT” to enter its submenu after entering the main menu of this device. Submenu structure tree: 8-20 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 169: Submenu Of "Information

    Submenu structure tree: The submenu “Local Cmd” maybe has following submenus. Item Description Version Info To view the program version information of this relay Board Info To view the module information of this relay PCS-9671 Transformer Relay 8-21 Date: 2014-10-28...
  • Page 170 Press key “▲” or “▼” to locate the cursor on the submenu “Board Info” and press key “ENT” to show the board information. The board information interface is shown as below. 8-22 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 171: Submenu Of "Test

    To test the binary outputs The submenu “Prot Elements”, “Superv Events” and “IO Events” have following submenus. Item Description All Test To test all the binary signals Select Test To test the selected binary signal PCS-9671 Transformer Relay 8-23 Date: 2014-10-28...

  • Page 172: Submenu Of "Clock

    Press key “▲” or “▼” to locate the cursor on the submenu “Clock” and press key “ENT” to enter the clock modification interface. Press key “▲” or “▼” to locate the cursor on a selected item and press key “+” or “-” to modify the selected item. 8-24 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 173: Submenu Of "Language

    8.3.1 Display When Tripping If there is any protection element operating, a brief tripping report will appear on the LCD, and the backlight of the LCD and the LED “TRIP” will be on simultaneously. PCS-9671 Transformer Relay 8-25 Date: 2014-10-28...
  • Page 174 S2.50/51P3.Op The stage 3 overcurrent protection of side 2 operates. S1.50/51G1.Op The stage 1 zero sequence overcurrent protection of side 1 operates. S1.50/51G2.Op The stage 2 zero sequence overcurrent protection of side 1 operates. 8-26 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 175: Display Under Abnormal Condition

    The alarm report will keep being displayed on LCD until the relevant alarm situation is restored to normal state. It means that this relay does not detect any alarm situation. The default display then PCS-9671 Transformer Relay 8-27 Date: 2014-10-28...

  • Page 176: Password Protection

    NOTE! If this device is blocked or alarm signal is issued during operation, do please find out its reason by help of the history reports. If the reason can not be found on site, please inform the manufacturer NR Electric Co., Ltd. 8.4 Password Protection For the safety purpose, this device provides password security function for modifying the settings and doing a control operation.
  • Page 177 The password for modifying settings is fixed, and it is press key “+”, “◄”, “▲” and “-” in sequence. The following figure shows the password input interface for modifying settin gs. Password: ---- Figure 8.4-2 Password input interface for modifying settings PCS-9671 Transformer Relay 8-29 Date: 2014-10-28...
  • Page 178 8 Human Machine Interface 8-30 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 179 Table 9.3-2 Configurable GOOSE input signal list ..............9-2 Table 9.3-3 Configurable binary output signal list ..............9-3 Table 9.3-4 Configurable logic output signal list ..............9-3 Table 9.3-5 Configuralbe logic input signal list..............9-8 Table 9.4-1 Configuralbe LED indicator list................9-11 PCS-9671 Transformere Relay Date: 2014-10-28...
  • Page 180 9 Configurable Function PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 181 Analysis of waveform (off-line & on-line function)  File downloading/uploading (on-line function) For more details about how to do a logic graph configuration, see the PCS-Explorer online help brochure or the instruction manual of PCS-Explorer configuration tool auxiliary software. PCS-9671 Transformere Relay Date: 2014-10-28...
  • Page 182 GOOSE_In4 The No.4 probrammable GOOSE binary input. GOOSE_In5 The No.5 probrammable GOOSE binary input. GOOSE_In6 The No.6 probrammable GOOSE binary input. GOOSE_In7 The No.7 probrammable GOOSE binary input. GOOSE_In8 The No.8 probrammable GOOSE binary input. PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 183: Binary Output Signals

    The locked signal of auxiliary open contact of breaker Sig_52bLock being tripped, which will hold unit the device is acknowledged manually 87T.St_Biased Biased current differential protection starts. 87T.Op_Biased Biased current differential protection operates. Unrestrained instantaneously current differential 87T.St_Instant protection starts. PCS-9671 Transformere Relay Date: 2014-10-28...
  • Page 184 S1.50/51G2.St starts. Stage 2 zero sequence overcurrent protection of side 1 S1.50/51G2.OP operates. Stage 3 zero sequence overcurrent protection of side 1 S1.50/51G3.St starts. Stage 3 zero sequence overcurrent protection of side 1 S1.50/51G3.OP operates. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 185 Stage 1 zero sequence overvoltage protection operates. 59G2.St Stage 2 zero sequence overvoltage protection starts. 59G2.Op Stage 2 zero sequence overvoltage protection operates. 59G3.St Stage 3 zero sequence overvoltage protection starts. 59G3.Op Stage 3 zero sequence overvoltage protection operates. PCS-9671 Transformere Relay Date: 2014-10-28...
  • Page 186 109. S2.64REF. Alm_Kct_Err of side 2 are not in reasonable range. 110. S3.64REF.Sig_En Restricted earth fault protection of side 3 is enabled. Differential circuit of restricted earth fault protection of 111. S3.64REF.Alm_Diff side 3 is abnormal. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 187 The stage 2 overvoltage protection is enabled. 139. 59P3.Sig_En The stage 3 overvoltage protection is enabled. The stage 1 zero sequence overvoltage protection is 140. 59G1.Sig_En enabled. The stage 2 zero sequence overvoltage protection is 141. 59G2.Sig_En enabled. PCS-9671 Transformere Relay Date: 2014-10-28...
  • Page 188 The input signal of blocking phase overcurrent protection of S2.50/51P.Blk_Input Bool_Off side 2. The input signal of enabling phase overcurrent protection of S3.50/51P.En_Input Bool_On side 3. The input signal of blocking phase overcurrent protection of S3.50/51P.Blk_Input Bool_Off side 3. PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 189 1. The input signal of blocking stage 2 zero sequence S1.50/51G2.Blk_Input Bool_Off overcurrent protection of side 1. The input signal of enabling stage 3 zero sequence S1.50/51G3.En_Input Bool_On overcurrent protection of side 1. PCS-9671 Transformere Relay Date: 2014-10-28...
  • Page 190 The input signal of enabling stage 3 undervoltage 27P3.En_Input Bool_On protection. The input signal of blocking stage 3 undervoltage 27P3.Blk_Input Bool_Off protection. 59P1.En_Input Bool_On The input signal of enabling stage 1 overvoltage protection. 9-10 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 191 All configurable LED indicators are list below, and the value of unconfigurable signal is the corresponding default value. Table 9.4-1 Configuralbe LED indicator list Item Default Value Description HEALTHY HEALTHY Fixed as the normal operation LED indicator, can not configure it PCS-9671 Transformere Relay 9-11 Date: 2014-10-28...
  • Page 192 The No.15 programmable LED indicator in16 The No.16 programmable LED indicator in17 The No.17 programmable LED indicator in18 The No.18 programmable LED indicator in19 The No.19 programmable LED indicator in20 The No.20 programmable LED indicator 9-12 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 193 10.4.3 MMS Communication Network Deployment ..............10-9 10.4.4 Server Data Organization....................10-11 10.4.5 Server Features and Configuration ................10-14 10.4.6 ACSI Conformance ....................10-16 10.4.7 Logical Nodes ......................10-20 List of Figures Figure 10.2-1 EIA RS-485 bus connection arrangements ........... 10-2 PCS-9671 Transformer Relay 10-a Date: 2014-10-28...
  • Page 194 Figure 10.4-1 Dual-net full duplex mode sharing the RCB block instance ......10-9 Figure 10.4-2 Dual-net hot-standby mode sharing the same RCB instance....10-10 Figure 10.4-3 Dual-net full duplex mode with 2 independent RCB instances ....10-11 10-b PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 195: Overview

    However, this product does not provide such a facility, so if it is located at the bus terminus then an external termination resistor will be require d. PCS-9671 Transformer Relay 10-1 Date: 2014-10-28...
  • Page 196 The DC source used for the bias must be clean; otherwise noise will be injected. Note that some devices may (optionally) be able to provide the bus bias, in which case external components will not be required. NOTE! 10-2 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 197: Ethernet Interface

    3 and section 4 of the IP address. 10.2.2.2 Ethernet Standardized Communication Cable It is recommended to use 4-pair screened twisted category 5E cable as the communication cable. A picture is shown below. Figure 10.2-3 Ethernet communication cable PCS-9671 Transformer Relay 10-3 Date: 2014-10-28...

  • Page 198: Iec60870-5-103 Communication

    The relay conforms to compatibility level 2; compatibility level 3 is not supported. The following IEC60870-5-103 facilities are supported by this interface: initialization (reset), time synchronization, event record extraction, general interrogation, cyclic measurements, general commands and disturbance records. 10-4 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 199: Physical Connection And Link Layer

    ASDU 2, time-tagged message with relative time: tripping messages and fault detector pickup messages.  ASDU 40, single point information: general binary input state change messages.  ASDU 41, single point information with time-tagged: sequence of event (SOE) messages. PCS-9671 Transformer Relay 10-5 Date: 2014-10-28...

  • Page 200: General Interrogation

    Read directory of a single entry Read value or attribute of a single entry General interrogation of generic data Write entry Write entry with confirmation Write entry with e xecution Write entry abort  Generic functions in monitor direction 10-6 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 201: Disturbance Records

    IEC 61850-7-3: Basic communication structure for substation and feeder equipment –  Common data classes  IEC 61850-7-4: Basic communication structure for substation and feeder equipment – Compatible logical node classes and data classes PCS-9671 Transformer Relay 10-7 Date: 2014-10-28...

  • Page 202: Communication Profiles

    IEC 61850-5 and IEC 61850-7. Each configured device has an IED Capability Description (ICD) file and a Configured IED Description (CID) file. The substation single line information is stored in a System Specification Description (SSD) file. The 10-8 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 203: Mms Communication Network Deployment

    RCB instance (i.e.: “RptEna” in above figure) is still “true”. Only when both Net A and Net B are disconnected, the flag of the RCB instance will automatically change to “false”. PCS-9671 Transformer Relay 10-9 Date: 2014-10-28...
  • Page 204 Note! In mode 1 and mode 2, Net A IED host address and Net B IED host address must be the same. E.g.: if the subnet mask is 255.255.0.0, network prefix of Net A is 198.120.0.0, 10-10 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 205: Server Data Organization

    For the consideration of client treatment and IED implementation, mode 1 (Dual-net full duplex mode sharing the same report instance) is recommended for MMS communication network deployment. 10.4.4 Server Data Organization IEC61850 defines an object-oriented approach to data and services. An IEC61850 physical device PCS-9671 Transformer Relay 10-11 Date: 2014-10-28...
  • Page 206 Phase CA voltage magnitude and angle MMXU.MX.PhV.phsA: phase AG voltage magnitude and angle MMXU.MX.PhV.phsB: phase BG voltage magnitude and angle MMXU.MX.PhV.phsC: phase CG voltage magnitude and angle MMXU.MX.A.phsA: phase A current magnitude and angle 10-12 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 207 MMXU: This LN shall be used to acquire values from CTs and VTs and calculate measurands such as r.m.s. values for current and voltage or power flows out of the acquired voltage and current samples. These values are normally used for operational purposes such as power flow PCS-9671 Transformer Relay 10-13 Date: 2014-10-28...

  • Page 208: Server Features And Configuration

    － Bit 3: Reason-for-inclusion － Bit 4: Data-set-name － Bit 5: Data-reference － Bit 6: Buffer-overflow (for buffered reports only) － Bit 7: EntryID (for buffered reports only) － Bit 8: Conf-revision － Bit 9: Segmentation 10-14 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 209 It is critical that the configured datasets at the transmission and reception devices are an exact match in terms of data structure, and that the GOOSE addresses and name strings match exactly. PCS-9671 Transformer Relay 10-15 Date: 2014-10-28...

  • Page 210: Acsi Conformance

    Supported by PCS-9000 series relays Currently not supported by PCS-9000 series relays 10.4.6.2 ACSI Models Conformance Statement Services Client Server PCS-9000 Series Logical device Logical node Data Data set Substitution Setting group control Reporting Buffered report control 10-16 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 211 C2: Shall be "M" if support for LOGICAL-NODE model has been declared C3: Shall be "M" if support for DATA model has been declared C4: Shall be "M" if support for DATA-SET, Substitution, Report, Log Control, or Time models has been declared PCS-9671 Transformer Relay 10-17 Date: 2014-10-28...
  • Page 212 ServerDirectory Application association Associate Abort Release Logical device LogicalDeviceDirectory Logical node LogicalNodeDirectory GetAllDataValues Data GetDataValues SetDataValues GetDataDirectory GetDataDefinition Data set GetDataSetValues SetDataSetValues CreateDataSet DeleteDataSet GetDataSetDirectory Substitution SetDataValues Setting group control SelectActiveSG SelectEditSG SetSGValuess ConfirmEditSGValues 10-18 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 213 Report S27-1 data-change S27-2 qchg-change S27-3 data-update GetURCBValues SetURCBValues Logging Log control block GetLCBValues SetLCBValues QueryLogByTime QueryLogAfter GetLogStatusValues Generic substation event model (GSE) GOOSE control block SendGOOSEMessage GetGoReference GetGOOSEElementNumber GetGoCBValues SetGoCBValuess Control Select SelectWithValue PCS-9671 Transformer Relay 10-19 Date: 2014-10-28...

  • Page 214: Logical Nodes

    PMSS: Motor starting time supervision － POPF: Over power factor － PPAM: Phase angle measuring － PSCH: Protection scheme － PSDE: Sensitive directional earth fault － PTEF: Transient earth fault PTOC: Time overcurrent PTOF: Overfrequency 10-20 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 215 ITMI: Telemonitoring interface A: Logical Nodes For Automatic Control － ANCR: Neutral current regulator － ARCO: Reactive power control － ATCC: Automatic tap changer controller － AVCO: Voltage control M: Logical Nodes For Metering And Measurement PCS-9671 Transformer Relay 10-21 Date: 2014-10-28...
  • Page 216 ZGIL: Gas insulated line － ZLIN: Power overhead line － ZMOT: Motor － ZREA: Reactor － ZRRC: Rotating reactive component － ZSAR: Surge arrestor － ZTCF: Th yristor controlled frequency converter － ZTRC: Thyristor controlled reactive component 10-22 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 217 Figure 11.7-2 Ground terminal of this relay................11-6 Figure 11.7-3 Ground strip and termination .................11-6 Figure 11.7-4 Glancing demo about the wiring for electrical cables........11-7 Figure 11.8-1 Typical wiring diagram of the PCS-9671-A ............11-8 Figure 11.8-2 Typical wiring diagram of the PCS-9671-B ............11-9 PCS-9671 Transformer Relay...
  • Page 218 11 Installation 11-b PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 219: General

    The modules, bus backplanes are sensitive to electrostatic discharge when not in the unit's housing. The basic precautions to guard against electrostatic discharge are as follows: PCS-9671 Transformer Relay 11-1 Date: 2014-10-28...

  • Page 220: Checking The Shipment

    There should also be free access at the rear of the equipment for additions and replacement of electronic boards. Since every piece of technical equipment can be damaged or destroyed by inadmissible ambient conditions, such as: The location should not be exposed to excessive air pollution (dust, aggressive substances). 11-2 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 221: Mechanical Installation

    -0.0 4-Φ6.8 Figure 11.6-1 Dimensions of this rela y and the cut-out in the cubicle (unit: mm) NOTE! It is necessary to leave enough space top and bottom of the cut-out in the cubicle PCS-9671 Transformer Relay 11-3 Date: 2014-10-28...

  • Page 222: Electrical Installation And Wiring

    NOTE! All these precautions can only be effective if the station ground is of good qua lity. 11.7.2 Cubicle Grounding The cubicle must be designed and fitted out such that the impedance for RF interference of the 11-4 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 223: Ground Connection On The Device

    Take care that the grounding strip is always as short as possible. The main thing is that the device is only grounded at one point. Grounding loops from unit to unit are not allowed. PCS-9671 Transformer Relay 11-5 Date: 2014-10-28...

  • Page 224: Grounding Strips And Their Installation

    There are several types of cables that are used in the connection of this relay: braided copper cable, serial communication cable etc. Recommendation of each cable:  Grounding: braided copper cable, 2.5mm ~ 6.0mm  Power supply, binary inputs & outputs: brained copper cable, 1.0mm ~ 2.5mm 11-6 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 225: Wiring For Electrical Cables

    Chapter 6. Referring the relevant sections can help to wire correctly and effectively. The typical wiring of this relay is shown as below, all the configurable binary inputs and binary output adopt the default definition in the factory. PCS-9671 Transformer Relay 11-7 Date: 2014-10-28...
  • Page 226 0915 0615 BO_2 0916 0616 BO_Trp05 0917 0617 BO_3 0918 0618 BO_Trp06 0919 0619 BO_4 Power 0920 PWR+ 0620 Supply PWR- 0921 0621 BO_5 0922 0622 Figure 11.8-1 Typical wiring diagram of the PCS-9671-A 11-8 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 227 0915 0615 BO_2 0916 0616 BO_Trp05 0917 0617 BO_3 0918 0618 BO_Trp06 0919 0619 BO_4 0620 Power 0920 PWR+ Supply PWR- 0921 0621 BO_5 0922 0622 Figure 11.8-2 Typical wiring diagram of the PCS-9671-B PCS-9671 Transformer Relay 11-9 Date: 2014-10-28...
  • Page 228 11 Installation 11-10 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 229 12.3 Commission Tools ....................12-2 12.4 Setting Familiarization ..................12-2 12.5 Product Checks....................... 12-3 12.5.1 With the Relay De-energized ..................12-4 12.5.2 With the Relay Energized..................... 12-5 12.5.3 Protective Function Test ....................12-8 12.5.4 On-load Checks ......................12-15 PCS-9671 Transformer Relay 12-a Date: 2014-10-28...
  • Page 230 12 Commissioning 12-b PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 231: General

    When testing the device with secondary test equipment, make sure that no other measurement quantities are connected. Take also into consideration that the trip circuits and maybe also close commands to the circuit breakers and other primary switches are disconnected from the device unless expressly stated. PCS-9671 Transformer Relay 12-1 Date: 2014-10-28...

  • Page 232: Commission Tools

    Protection or configuration settings can be changed, or fault and event records cleared. However, menu cells will require the appropriate pas sword to be entered before changes can be made. 12-2 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 233: Product Checks

     Measuring elements test  Timers test  Metering and recording test  Conjunctive tests The tests are performed after the relay is connected with the primary equipment and other external equipment. PCS-9671 Transformer Relay 12-3 Date: 2014-10-28...

  • Page 234: With The Relay De-Energized

    Isolate all wiring from the earth and test the isolation with an electronic or brushless insulation tester at a DC voltage not exceeding 500V, The circuits need to be tested should include: 12-4 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 235: With The Relay Energized

    The current and voltage transformer connections must remain isolated from the relay for these checks. The trip circuit should also remain isolated to prevent accidental operation of the associated circuit breaker. PCS-9671 Transformer Relay 12-5 Date: 2014-10-28...
  • Page 236 Test the other LEDs according to the configuration of the LEDs (through the PCS-Explorer configuration tool auxiliary software). If the conditions which can turn on the selected LED are satisfied, the selected LED will be on. 12-6 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 237 12.5.2.8 Test the Binary Inputs This test checks that all the binary inputs on the relay are functioning correctly. The binary inputs should be energized one at a time, see external connection diagrams for PCS-9671 Transformer Relay 12-7 Date: 2014-10-28...

  • Page 238: Protective Function Test

     To conclude that the primary function of the protection can trip according to the correct application settings.  To verify correct setting of all related protective elements. 12-8 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 239 Simulate a condition with normal phase currents at each side to make the differential current of each phase be almost zero. Simulate an inner fault of transformer to make any one of the differential currents be greater than the setting [87T.I_Instant]. PCS-9671 Transformer Relay 12-9 Date: 2014-10-28...
  • Page 240 Set the setting [S1.50/51P1.OutMap] as “0x001” in the submenu “OC Settings”.  Set other logic settings as “0” in the submenu “OC Settings”. De-energize all the binary inputs of this relay. Simulate a normal condition with normal protection voltages and currents at side 1. 12-10 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 241 After the fault is disappeared, this relay will restore the stage 1 zero sequence overcurrent protection of side 1 automatically. Restore the “TRIP” indicator and the LCD manually. NOTE! Another way for testing the zero sequence overcurrent protection is using the self-calculated zero sequence current. PCS-9671 Transformer Relay 12-11 Date: 2014-10-28...
  • Page 242 Simulate a normal condition with normal protection voltages and currents, and the load current is 0.5 × [S1.49.K_Trp] × [S1.49.Ib_Set]. Simulate a thermal overload condition; the load current is 2 × [S1.49.K_Trp] × [S1.49.Ib_Set]. 12-12 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 243 Set the setting [59P.Opt_Up/Upp] as “1” in the submenu “VoltProt Settings”.  Set the setting [59P.OutMap] as “0x001” in the submenu “VoltProt Settings”.  Set other logic settings as “0” in the submenu “VoltProt Settings”. De-energize all the binary inputs of this relay. PCS-9671 Transformer Relay 12-13 Date: 2014-10-28...
  • Page 244 -specific settings. Enable the stage 1 negative sequence overvoltage protection.  Set the logic setting [59Q1.En] as “1” in the submenu “NegOV Settings”.  Set the setting [59Q1.OutMap] as “0x001” in the submenu “NegOV Settings”. 12-14 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 245: On-Load Checks

     Measure the magnitude of on-load current and voltage (if applicable).  Check the polarity of each current transformer. However, these checks can only be carried out if there are no restrictions preventing the PCS-9671 Transformer Relay 12-15 Date: 2014-10-28...
  • Page 246 Ensure that all event records, fault records, disturbance records and alarms have been cleared and LED’s has been reset before leaving the protection. 12-16 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 247 13 Maintenance 13 Maintenance Table of Contents 13.1 Maintenance Schedule ..................13-1 13.2 Regular Testing ....................... 13-1 13.3 Failure Tracing and Repair ................... 13-1 13.4 Replace Failed Modules..................13-1 PCS-9671 Transformer Relay 13-a Date: 2014-10-28...
  • Page 248 13 Maintenance 13-b PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 249: Maintenance Schedule

    Repair at the site should be limited to module replacement. Maintenance at the component level is not recommended. Check that the replacement module has an identical module name and hardware type -form as the PCS-9671 Transformer Relay 13-1 Date: 2014-10-28...
  • Page 250 If this is not the case, there is a danger of the unintended operation of switchgear taking place or of protections not functioning correctly. Persons may also be put in danger. 13-2 PCS-9671 Transformer Relay Date: 2014-10-28...
  • Page 251 14 Decommissioning and Disposal 14 Decommissioning and Disposal Table of Contents 14.1 Decommissioning....................14-1 14.1.1 Switching off ........................ 14-1 14.1.2 Disconnecting cables ....................14-1 14.1.3 Dismantling ........................14-1 14.2 Disposal ........................14-1 PCS-9671 Transformer Relay 14-a Date: 2014-10-28...
  • Page 252 14 Decommissioning and Disposal 14-b PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 253: Switching Off

    14.2 Disposal In every country there are companies specialized in the proper disposal of electronic waste. NOTE! Strictly observe all local and national regulations when disposing of the device. PCS-9671 Transformer Relay 14-1 Date: 2014-10-28...
  • Page 254 14 Decommissioning and Disposal 14-2 PCS-9671 Transformer Relay Date: 2014-10-28...

  • Page 255: Manual Version History

    In the current version of the instruction manual, several descriptions on existing features have been modified. Manual version and modification history records Manual Version Software Date Description of change Source Version R3.00 R2.20 2014-10-28 Form the original manual. PCS-9671 Transformer Relay 15-1 Date: 2014-10-28...
  • Page 256 15 Manual Version History 15-2 PCS-9671 Transformer Relay Date: 2014-10-28...

Table of Contents