PCS 9631s x technical manual EN overseas general x r1 13

Preface About This Manual The technical manual describes the protection, automation, control, and supervision functions of PCS-9631S capacitor relay, and contains operation principle de

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NR, the NR logo are either registered trademarks or trademarks of NR Electric Co., Ltd No NR trademarks may be used without written permission NR products appearing in this document may

be covered by P.R China and foreign patents NR Electric Co., Ltd reserves all rights and benefits afforded under P.R China and international copyright and patent laws in its products, including but not limited to software, firmware and documentation NR Engineering Co., Ltd is licensed to use this document as well as all intellectual property rights owned or held by NR Electric Co., Ltd, including but not limited to copyright, rights in inventions, patents, know-how, trade secrets, trademarks and trade names, service marks, design rights, database rights and rights in data, utility models, domain names and all similar rights

The information in this document is provided for informational use only and does not constitute a legal contract between NR and any person or entity unless otherwise specified Information in this document is subject to change without prior notice

To the extent required the products described herein meet applicable IEC and IEEE standards, but no such assurance is given with respect to local codes and ordinances because they vary greatly

Although every reasonable effort is made to present current and accurate information, this document does not purport to cover all details or variations in equipment nor provide for every possible contingency to be met in connection with installation, operation, or maintenance Should further information be desired or should particular problems arise which are not covered sufficiently for your purposes, please do not hesitate to contact us

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Preface

About This Manual

The technical manual describes the protection, automation, control, and supervision functions of PCS-9631S capacitor relay, and contains operation principle descriptions, and lists function blocks, logic diagrams, input and output signals, setting parameters and technical data, sorted per function, as well as the hardware of the device The manual can be used as a technical reference during the engineering phase and during normal service In addition, the manual also includes a glossary that lists and defines technical terms used throughout the manual

Safety Information

This manual is not a complete index of all safety measures required for operation of the equipment (module or device) However, it comprises important information that must be followed for personal safety, as well as to avoid material damage Information is highlighted and illustrated

as follows according to the degree of danger:

Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury

Indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury

Indicates a potentially hazardous situation that, if not avoided, may result

in minor or moderate injury or equipment damage

Indicates that property damage can result if the measures specified are

not taken

Important information about the device, product handling or a certain section of the documentation which must be given particular attention

Instructions and Warnings

The following hazard statements apply to this device

Disconnect or de-energize all external connections BEFORE opening this

device Contact with hazardous voltages and currents inside this device

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can cause electrical shock resulting in injury or death

Contact with instrument terminals can cause electrical shock that can result in injury or death

Use of this equipment in a manner other than specified in this manual can impair operator safety safeguards provided by this equipment

Have only qualified personnel service this equipment If you are not qualified to service this equipment, you can injure yourself or others, or cause equipment damage

This device is shipped with default passwords Default passwords should

be changed to private passwords at installation Failure to change each default password to a private password may allow unauthorized access

NR shall not be responsible for any damage resulting from unauthorized access

DO NOT look into the fiber (laser) ports/connectors

DO NOT look into the end of an optical cable connected to an optical

output

DO NOT perform any procedures or adjustments that this instruction

manual does not describe

During installation, maintenance, or testing of the optical ports, ONLY use the test equipment qualified for Class 1 laser products!

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Incorporated components, such as LEDs, transceivers, and laser emitters,

are NOT user serviceable Return units to NR for repair or replacement

Equipment components are SENSITIVE to electrostatic discharge (ESD)

Undetectable permanent damage can result if you do not use proper ESD procedures Ground yourself, your work surface, and this equipment

BEFORE removing any cover from this equipment If your facility is not

equipped to work with these components, contact NR about returning this device and related NR equipment for service

Insufficiently rated insulation can deteriorate under abnormal operating conditions and cause equipment damage For external circuits, use wiring

of SUFFICIENTLY RATED insulation that will not break down under

abnormal operating conditions

SEVERE power and ground problems can occur on the communications

ports of this equipment as a result of using non-standard cables Please use the wiring method recommended in the manual for communication terminals

DO NOT connect power to the relay until you have completed these

procedures and receive instruction to apply power Equipment damage can result otherwise

Use of controls or adjustments, or performance of procedures other than

those specified herein, may RESULT IN hazardous radiation exposure

The firmware may be upgraded to add new features or enhance/modify

existing features, please MAKE SURE that the version of this manual is

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Document Conventions

⚫ The abbreviations and acronyms in this manual are explained in “Appendix A Glossary” The Glossary also contains definitions of important terms

⚫ Menu path is connected with the arrow "→" and bold

For example: the access path of protection settings is: MainMenu→Settings→Protection

Settings

⚫ Settings not in the table should be placed in brackets

For example: the system setting [Opt_SysFreq]

⚫ Cross-references are presented in italics

For example: refer to Figure 1.1-1, refer to Table 1.1-1, reference to Section 1.1

⚫ Binary input signals, binary output signals, analogs, LED lights, buttons, and other fixed meanings, should be written in double quotes and bold

For example: press the button "ENT"

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5 Measurement

Provides information on viewing fundamental and metering quantities for voltages and currents,

as well as power and energy metering data

6 Supervision

Describes self-supervision technique to help diagnose potential difficulties should these occur and includes the list of status notification messages Provides a troubleshooting chart for common device operation problems

7 System Functions

Describes how to perform fundamental operations such as clock synchronization, communicating with the device, switching active setting group, checking relay status, reading event reports and SER (Sequential Events Recorder) records

8 Hardware

Describes the hardware of the PCS S series device family and provides general information on the product structure and the modules’ information

9 Settings

Provides a list of all PCS-9631S settings and their ranges, unit, steps, defaults The organization

of the settings is similar to the settings organization in the device and in the PCS-Studio configuration tool

Appendix A Glossary

Describes the abbreviations adopted in this manual

Document Revision History

PN: ZL_PCS-9631S_X_Technical Manual_EN_Overseas General_X

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R1.10 R1.10 2019-09-30

⚫ Current unbalance protection is modified;

⚫ The dynamic compensation function for current unbalance protection, phase voltage differential protection and neutral point voltage differential protection

is deleted;

⚫ The settings of current unbalance protection, phase voltage differential protection and neutral point voltage differential protection are modified;

⚫ The NR6311A power supply module is added

⚫ The definition for current analog input Ix1, Ix2 and Ix3 is modified;

⚫ The definition for voltage analog input Ux1, Ux2 and Ux3

is modified

⚫ The NR6610B module is deleted

⚫ The VT circuit supervision function is modified

⚫ The control function is modified

⚫ Thermal overload protection is added;

⚫ The NR6661A module is added

⚫ The two supervision settings [Bus.VTS.Opt_VT] and [Tap.VTS.Opt_VT] are added;

⚫ Appendix A is modified

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1.1 Application

The PCS-9631S relay is a protection, control and monitoring unit for the capacitor in all systems of

which the neutral point is effectively grounded or not effectively grounded Many auxiliary

functions such as fault location, fault recording, event recording, communication functions and etc

are also integrated into the device This relay is suitable for wall surface mounted indoors or

outdoors or flush mounted into a control panel

The function diagram of this relay is shown in Figure 1.1-1

60/50 Grp3.

50/51R

60/50

59G 49

Figure 1.1-1 Functional diagram of PCS-9631S

1.2 Functions

1 Protection functions

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50/51P Phase overcurrent protection

 Up to 6 stages with independent logic

 Optional definite-time characteristic and inverse-time characteristic for each stage

 Selectable trip purpose or alarm purpose for each stage

50/51G Earth fault protection

 Optional measured zero-sequence current or calculated zero-sequence current

50/51Q Negative-sequence overcurrent

protection

50/51R RMS overcurrent protection

 Full-current RMS value includes 2nd~11th harmonic components

59P Overvoltage protection

 Optional phase voltage or phase-to-phase voltage

 Optional “1-out-of-3” logic or “3-out-of-3” logic

27P Undervoltage protection

 Optional phase voltage or phase-to-phase voltage

 Check mode using circuit breaker position and current criterion

 Blocked by instantaneous VT circuit failure

 Selectable trip purpose or alarm purpose for each stage 59Q Negative-sequence overvoltage

protection

 Selectable trip purpose or alarm purpose for each stage 59Pos Positive-sequence overvoltage

protection

 One stage of positive-sequence overvoltage protection

 Selectable trip purpose or alarm purpose

59G Residual overvoltage protection

 Optional measured zero-sequence voltage or calculated zero-sequence voltage

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1

37 Undercurrent protection

 Optional blocking condition, including circuit breaker position and current criterion

50BF Breaker failure protection

 Breaker failure protection and re-trip function

 Optional current criterion (phase overcurrent element, zero-sequence overcurrent element, negative-sequence overcurrent element)

 It can be initiated by current, circuit breaker position or external binary input

 Two time delays

 The fault location function is provided for the double-star capacitor bank

 Static compensation function is provided

60/50 Phase-current unbalance

protection

 The fault location function is provided for the single-star and H-type capacitor bank

 Static compensation function is provided 60/59 Voltage unbalance protection  Up to 2 stages with independent logic

87V Phase voltage differential

protection

 The fault location function is provided

87VN Neutral point voltage differential

protection

 The fault location function is provided

49 Thermal overload protection  Two stages of thermal overload protection, one stage for

alarm purpose and another stage for trip purpose

21C Impedance protection

 Static compensation function and dynamic compensation function are provided

CTS Current transformer supervision -

VTS Voltage transformer supervision -

2 Control functions

⚫ Circuit breaker & disconnector control (Remote/Local)

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⚫ DC power supply supervision

⚫ System frequency supervision

⚫ Two RS-485 serial ports using IEC 60870-5-103 or Modbus

⚫ One RS-485 serial port for clock synchronization

⚫ Support GOOSE communication module using IEC 61850-8-1 GOOSE

⚫ Full compatibility between IEC 61850 Editions 1 and 2

⚫ Redundancy protocols PRP and HSR

⚫ One front RJ45 port for debugging

6 User interfaces

⚫ Friendly HMI interface with LCD, easy-to-use keypad aids simple navigation and set-point adjustment

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user's login and logout authority management

⚫ 4 Programmable operator pushbuttons with user-configurable labels

⚫ Up to 15/18 (6U, 1/3 × 19" or 6U, 1/2 × 19" chassis) programmable target LEDs with

user-configurable labels

⚫ 1 RS-232 or RS-485 rear ports for printer

⚫ Language switchover—English+ selected language

⚫ Configuration tool—PCS-Studio

7 Additional functions

⚫ User programmable logic

⚫ Fault location

⚫ Fault phase selection

⚫ System phase sequences rotation function (ABC or ACB)

⚫ Clock synchronization

 IRIG-B: IRIG-B via RS-485 differential level or TTL level

 PPS: Pulse per second (PPS) via RS-485 differential level or binary input

 PPM: Pulse per minute (PPM) via RS-485 differential level or binary input

 IEEE1588: Clock message based on IEEE1588 via optical fiber interface

 SNTP (PTP): Unicast (point-to-point) SNTP mode via Ethernet network

 SNTP (BC): Broadcast SNTP mode via Ethernet network

 Message (IEC103/Modbus/DNP3): Clock messages through IEC103 protocol,

Modbus protocol and DNP3 protocol

⚫ Unified software and hardware platform, comprehensive power grid solutions of protection,

control, measurement and monitoring, easy to use and maintain

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circuit ensure that overall reliability of the device is high Real-time sampling based on dual AD can mutually check and detect the potential abnormality in the sampling circuit in time The control power supply of the output relay is independent with the control circuit of trigger signals, which can prevent from undesired operation caused by the abnormality of drive circuit of output relays

⚫ Various function modules can satisfy various situations according to the different requirements

of users Flexible and universal logic programming, user-defined configuration of BI/BOs, buttons and LEDs and powerful analogue programming are supported

⚫ Modularized hardware design makes the device be easily upgraded or repaired by a qualified service person It can be combined with different I/O modules, with online self-check and monitoring function, and the device can be restored from abnormal operation only need to replace a single abnormal module

⚫ Support memory check and error correction function, ensure high reliability and safety

⚫ Support the internet communication protocol of native PRP/HSR and RSTP

⚫ Fully compatible with IEC 61850 edition 1 & edition 2, support MMS service, IEC 62351 communication service, GOOSE communication in station level & process level, SV communication with multi-sampling rate

⚫ Fully comply with cyber security standards, including IEC62443, IEC62351, IEEE1686, NERC-CIP, support role based access control (RBAC), security audit, security encryption communication and security tool, improve the cyber security capability of devices

⚫ Powerful COMTRADE fault and disturbance recording function is supported The whole recording time is automatically configurable by the fault duration, which is convenient to fault analysis and replay The recording sample rate is up to 9.6kHz

⚫ Settable secondary rated current (1A/5A) and settable voltage threshold of binary input

⚫ Support small size and large size LCD, control and multifunction button

⚫ Support flush mounting, semi-flush mounting, surface mounting, wall mounting and other mounting methods

⚫ Cross screw IO, CT/VT terminals can support AWG12 specification connector and 4mm2 lead

⚫ Multiple variants with case size 1/3 or 1/2 × 19"

⚫ Protection class of front side is up to IP54

⚫ PCS-Studio engineering tool is the application software on the user's PC for the interface with PCS S series devices providing all the related functionality It ranges from device configuration

to entire substation design of bay integration

⚫ Support IEEE1588, IRIG-B clock synchronization

⚫ Support actual system phase sequence, either ABC or ACB, incorrect connection of actual phase sequence can automatically be verified and relevant protection functions can be

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1

blocked

⚫ Equipped with high-speed large capacity output relay, its operation speed is less than 1ms and

its break capacity is up to 10A The real-time supervision for output drive circuit can detect the

abnormality in advance

⚫ Support setup up to 40 users and allow each user to own different password and access

authority

⚫ Fully integrates multi functions into one device and can realize the protection, control and

monitoring function of capacitor and etc

⚫ Selectable IEC, ANSI inverse-time characteristic curves that can be defined by users and the

inverse-time drop-out curve selection is supported

⚫ Overvoltage and undervoltage protection support single phase and three phase operation

criteria setting, phase voltage and phase-to-phase voltage measurement mode are selectable,

which can be for various applications

⚫ Complete event recording function is provided: 64 latest protection operation reports, 1024

latest supervision records, 1024 latest control operation records, 1024 latest user operation

records and 1024 latest records of time tagged sequence of event (SOE) can be recorded

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1

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2

2.10.1 Control Performance 2-12 2.10.2 Clock Performance 2-12 2.10.3 Fault and Disturbance Recording 2-12 2.10.4 Binary Input Signal 2-12

2.11 Protective Functions 2-12

2.11.1 Phase Overcurrent Protection (50/51P) 2-12 2.11.2 Earth Fault Protection (50/51G) 2-13 2.11.3 Negative-sequence Overcurrent Protection (50/51Q) 2-13 2.11.4 RMS Overcurrent Protection (50/51R) 2-14 2.11.5 Phase Overvoltage Protection (59P) 2-14 2.11.6 Residual Overvoltage Protection (59G) 2-14 2.11.7 Negative-sequence Overvoltage Protection (59Q) 2-14 2.11.8 Positive-sequence Overvoltage Protection (59Pos) 2-15 2.11.9 Phase Undervoltage Protection (27P) 2-15 2.11.10 Undercurrent Protection (37) 2-15 2.11.11 Breaker Failure Protection (50BF) 2-15 2.11.12 Current Unbalance Protection (60/50) 2-16 2.11.13 Voltage unbalance protection (60/59) 2-16 2.11.14 Phase Voltage Differential Protection (87V) 2-16 2.11.15 Neutral Point Voltage Differential Protection (87VN) 2-17 2.11.16 Impedance Protection (21C) 2-17 2.11.17 Thermal Overload Protection (49) 2-17 2.11.18 Transient Overreach 2-17

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Number Up to 6 current inputs according to various applications

600V 660V

Phase-to-phase 519V

1038V 1141V

Number Up to 6 voltage inputs according to various applications

24Vdc/30Vdc 48Vdc/60Vdc

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2

230Vac/240Vac/250Vac

Permissible voltage range

IEC 61000-4-11:2017 IEC 61000-4-29:2000

Quiescent condition <15W (Default hardware configuration)

Additional for each energized SFP

0.25W ~ 0.35W

Additional for each BI module

Quiescent condition: <1W Additional for each energized binary input:

0.004W @ 24VDC 0.008W @ 48VDC 0.015W @ 110VDC 0.32W @ 220VDC 0.41W @ 250VDC Additional for each BO

module

Quiescent condition: <0.1W Additional for each energized binary output: <0.44W Additional module for SV

On value (default set) 69.3~132Vdc 78.75~160Vdc 138.6~264Vdc 157.5~300Vdc Off value (default set) <55Vdc <62.5Vdc <110Vdc <125Vdc Maximum permissible voltage 300Vdc

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2

Number

Up to 34 (6U, 1/3 × 19", ring ferrule), 41 (6U, 1/3 × 19", pin ferrule), 84 (6U, 1/2 × 19", ring ferrule) or 105 (6U, 1/2 × 19", pin ferrule) binary inputs according to various hardware configurations

Settable pickup voltage and dropout voltage

Maximum permissible voltage 300Vac

Withstand voltage 2000Vac, 2800Vdc (1 min)

Number

Settable pickup voltage and dropout voltage

Maximum permissible voltage 300Vdc

Withstand voltage 2000Vac, 2800Vdc (1 min)

Number

2.1.5 Binary Output

Tripping/signalling contact

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2

Maximum system voltage 250Vac, 300Vdc

Pickup time (Typical value) <5ms

Drop-off time (Resistive load) <6ms

Breaking capacity (L/R=40ms)

0.5A@48Vdc 0.35A@110Vdc 0.30A@125Vdc 0.20A@220Vdc 0.15A@250Vdc

Cyclic capacity (2.5 cycle/second,

L/R=40ms)

0.5A@48Vdc 0.35A@110Vdc 0.30A@125Vdc 0.20A@220Vdc 0.15A@250Vdc

Short duration current

30A@3s 50A@1s Durability (Loaded contact) 10000 operations

Number

Up to 18 (6U, 1/3 × 19", ring ferrule), 22 (6U, 1/3 × 19", pin ferrule), 44 (6U, 1/2 × 19", ring ferrule) or 56 (6U, 1/2 × 19", pin ferrule) binary outputs according to various hardware configurations

Heavy-capacity tripping contact

MOV Protection (Maximum voltage ) 350Vdc, 275Vac

Pickup time (Typical value) <1ms

Dropout time (Resistive load) <10ms

Breaking capacity (L/R=40ms)

10A@48V L/R=40ms

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2

10A@125V L/R=40ms 10A@220V L/R=20ms 10A@250V L/R=20ms

Cyclic Capacity (4cycles in 1 second,

followed by 2 minutes idle for thermal

dissipation)

10A@48V L/R=40ms 10A@110V L/R=40ms 10A@125V L/R=40ms 10A@220V L/R=20ms 10A@250V L/R=20ms

Short duration current

30A@3s 50A@1s Durability (Loaded contact) 10000 operations

Number

Up to 4 (6U, 1/3 × 19", ring ferrule) or 12 (6U, 1/2 × 19", ring ferrule) heavy-capacity binary outputs according to various hardware configurations

2.2 Mechanical Specifications

Weight per device

Approx 8.71kg (6U, 1/2 × 19") Approx 6.98kg (6U, 1/3 × 19")

Location of terminal Rear panel of the device

Device structure Plug-in modular type @ rear side, integrated front plate

Protection Class

Front side

IP52 IP54 (valid for surface mounting mode of 6U, 1/3 × 19" or 6U, 1/2 × 19"

case with sealing strip)

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Baud rate 4.8kbit/s, 9.6kbit/s, 19.2kbit/s, 38.4kbit/s, 57.6kbit/s, 115.2kbit/s

Maximum transmission distance 500m

2.4.2 Ethernet Port

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2

2.4.3 Optical Fiber Port

For Station Level

Maximum transmission distance 2km

Minimum receiving power -31dBm

2.4.4 Print Port

Baud rate 4.8kbit/s, 9.6kbit/s, 19.2kbit/s, 38.4kbit/s, 57.6kbit/s, 115.2kbit/s

2.4.5 Clock Synchronization Port

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2

Damp heat test, cyclic IEC60068-2-30:2005

2.5.2 Mechanical Tests

2.5.3 Electrical Tests

Dielectric tests Test voltage 2kV, 50Hz, 1min

Impulse voltage tests Test voltage 5kV

Electrostatic discharge test

IEC 61000-4-2:2008 class IV For contact discharge: 8kV For air discharge: 15kV

Radio frequency interference tests

IEC 60255-26:2013 class III Frequency sweep

Radiated amplitude-modulated 10V/m (rms), f=80~1000MHz, 1400~2700MHz Spot frequency

Radiated amplitude-modulated 10V/m (rms), f=80MHz/160MHz/450MHz/900MHz

Fast transient disturbance tests

IEC 60255-26:2013 Power supply, I/O, Earth: class IV, 4kV, 5kHz, 5/50ns Communication terminals: class IV, 2kV, 5kHz, 5/50ns

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Spot frequency 10V (rms), f=27MHz/68MHz Power frequency magnetic field

immunity

IEC 61000-4-8: 2009 Class V, 100A/m for 1min, 1000A/m for 3s

Pulse magnetic field immunity

IEC 61000-4-9:2016 Class V, 6.4/16μs, 1000A/m for 3s

Damped oscillatory magnetic field

immunity

IEC 61000-4-10:2016 Class V, 100kHz & 1MHz–100A/m

Conducted emission

IEC 60255-26:2013 0.15MHz~0.50MHz: 79dB (μV) quasi peak, 66dB (μV) average 0.50MHz~30MHz: 73dB (μV) quasi peak, 60dB (μV) average

Radiated emission

IEC 60255-26:2013

Below 1GHz

30MHz~230MHz: 40dB (μV/m) quasi peak @10m, 50dB (μV/m) quasi peak @3m

230MHz~1000MHz: 47dB (μV/m) quasi peak @10m, 57dB (μV/m) quasi peak @3m

Above 1GHz

1GHz~3GHz: 56dB (μV/m) average, 76dB (μV/m) peak @3m

3GHz~6GHz: 60dB (μV/m) average, 80dB (μV/m) peak @3m

Auxiliary power supply performance IEC 60255-26:2013

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2

- Voltage dips

-Voltage short interruptions

Up to 200ms for dips to 40% of rated voltage without reset 50ms for interruption without rebooting without energy storage board (Typical configuration)

500ms for interruption without rebooting with energy storage board (Typical configuration)

⚫ EMC: 2014/30/EU, EN60255-26:2013

⚫ Products safety (LVD): 2014/35/EU, EN60255-27:2014

⚫ IEC 61850: Edition 2, Parts 6, 7-1, 7-2, 7-3,7-4 and 8-1

⚫ IEC 61850: Edition 2, GOOSE Performance Class P1 (3ms)

⚫ IEEE 1588: IEEE Std C37.238TM-2017

⚫ DNP: DNP 3

⚫ PRP: IEC 62439-3 Ed.3 (IS 2016)

⚫ HSR: IEC 62439-3 Ed.3 (IS 2016)

2.7 Liquid Crystal Display (LCD)

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2

2.8 Terminals

2.8.1 Ring Ferrule

Grounding (Earthing) connection BVR type, 0.8~4mm2 lead M3 0.6~0.8 N⋅m

2.8.2 Pin Ferrule

2.9 Measurement Scope and Accuracy