Preface 1.1 About This Manual The technical manual describes the protection, automation, control, and supervision functions of PCS S series device, and contains operation principle desc
Trang 3Copyright © 2020 NR All rights reserved
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
Trang 5Preface
1.1 About This Manual
The technical manual describes the protection, automation, control, and supervision functions of PCS S series device, 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
1.2 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
1.3 Instructions and Warnings
The following hazard statements apply to this device
Trang 6Disconnect or de-energize all external connections BEFORE opening this
device Contact with hazardous voltages and currents inside this device 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
Trang 7the test equipment qualified for Class 1 laser products!
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
Trang 8The firmware may be upgraded to add new features or enhance/modify
existing features, please MAKE SURE that the version of this manual is
compatible with the product in your hand
1.4 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”
Trang 111 Introduction
Trang 12Introduces the features of this device, summarizes functions and applications of the device
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
Appendix A Glossary
Describes the abbreviations adopted in this manual
1.9 Document Revision History
PN: ZL_PCS-9641S_X_Technical Manual_EN_Overseas General_X
Current version: R1.00
Trang 13Date Description of change Document Software
R1.00 R1.10 2020-05-15 Form the original manual
Trang 161
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The PCS-9641S relay is a protection, control and monitoring unit for various kinds of motors on
solidly grounded, impedance grounded, Peterson coil grounded and ungrounded system This
relay is suitable for wall surface mounted indoors or outdoors or flush mounted into a control panel
With its flexibility and the powerful PCS-Studio configuration tool, the PCS-9641S offers
future-oriented system solutions with high investment security and low operating costs
The function diagram of this relay is shown in Figure 1.1-1
Figure 1.1-1 Functional diagram of PCS-9641S
The PCS-9641S is widely adopted not only for conventional substations, but also for digital
substations It supports IEC 61850 Editions 1 and 2 and provides GOOSE network interfaces with
high real-time performance The process level network supports peer-to-peer (P2P) mode and
networking mode, including single network mode and dual network mode The station level
network can also receive and send MMS messages (such as interlocking signals) or process level
GOOSE messages (such as circuit breakers or disconnectors positions and trip signals)
1.2 Functions
1 Protection functions
ANSI Protection Functions Remark
87M Current differential protection
Biased current differential protection with 2nd & 3rdharmonic control element
Instantaneous current differential protection
Magnetic balance differential protection
Trang 181 67P
50/51P Phase overcurrent protection
Up to 6 stages with independent logic
Voltage control element for each stage
Optional direction element for each stage, including forward direction, reverse direction and non-direction
Optional definite-time characteristic and inverse-time characteristic for each stage
Selectable trip purpose or alarm purpose for each stage
67G
50/51G Earth fault protection
Up to 6 stages with independent logic
Optional direction element for each stage, including forward direction, reverse direction and non-direction
Optional measured zero-sequence current or calculated zero-sequence current
Optional definite-time characteristic and inverse-time characteristic for each stage
Selectable trip purpose or alarm purpose for each stage
It can be triggered by on-load signal or circuit breaker position
Short resetting is supported
50/51Q Negative-sequence
overcurrent protection
Up to 2 stages with independent logic
Optional direction element for each stage, including forward direction, reverse direction and non-direction
Optional definite-time characteristic and inverse-time characteristic for each stage
Selectable trip purpose or alarm purpose for each stage
50/51R RMS overcurrent protection
Up to 2 stages with independent logic
Full-current RMS value includes 2nd~11th harmonic components
Selectable trip purpose or alarm purpose for each stage
49 Thermal overload protection Two stages of thermal overload protection, one stage
for alarm purpose and the other stage for trip purpose
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59P Overvoltage protection
Optional definite-time characteristic and inverse-time characteristic for each stage
Optional phase voltage or phase-to-phase voltage
Optional “1-out-of-3” logic or “3-out-of-3” logic
Selectable trip purpose or alarm purpose for each stage
overvoltage protection
One stage of positive-sequence overvoltage protection
Selectable trip purpose or alarm purpose
overvoltage protection
Up to 2 stages with independent logic
Selectable trip purpose or alarm purpose for each stage
protection
Up to 2 stages with independent logic
Optional measured zero-sequence voltage or calculated zero-sequence voltage
Selectable trip purpose or alarm purpose for each stage
27P Undervoltage protection
Up to 2 stages with independent logic
Optional definite-time characteristic and inverse-time characteristic for each stage
Optional phase voltage or phase-to-phase voltage
Optional “1-out-of-3” logic or “3-out-of-3” logic
Check mode using circuit breaker position and current criterion
Blocked by instantaneous VT circuit failure
Selectable trip purpose or alarm purpose for each stage
32R Reverse power protection
Up to 2 stages with independent logic
Selectable trip purpose or alarm purpose for each stage
Up to 2 stages with independent logic
Selectable trip purpose or alarm purpose for each stage
55 Power factor protection
1 stage logic
Selectable trip purpose or alarm purpose for each stage
81O Overfrequency protection Up to 6 stages with independent logic
Voltage control element 81U Underfrequency protection Up to 6 stages with independent logic
Voltage control element
protection
Up to 6 stages with independent logic
Voltage control element
Trang 201 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
supervision
supervision TCS Tripping circuit supervision
DC power supply supervision
System frequency supervision
Trang 211
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 Digital interface
Support IEC 61850 MMS Server via extendable electrical or optical Ethernet port
Support IEC 61850-8-1 GOOSE via extendable electrical or optical Ethernet port
7 User Interfaces
Friendly HMI interface with LCD, easy-to-use keypad aids simple navigation and
set-point adjustment
Push buttons for open/close, switch for selection between local and remote control, and
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
8 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
Trang 221
SNTP (PTP): Unicast (point-to-point) SNTP mode via Ethernet network
SNTP (BC): Broadcast SNTP mode via Ethernet network
Message (IEC103/Modbus/DNP3.0): Clock messages through IEC103 protocol, Modbus protocol and DNP3.0 protocol
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
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
Trang 231
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
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 and monitoring
function of feeder and capacitor etc
Comprehensive functionality includes phase overcurrent protection, earth fault overcurrent
protection, negative-sequence overcurrent protection, overvoltage protection, undervoltage
protection, frequency protection, reverse power protection, breaker failure protection,
undercurrent protection etc The breaker failure, measuring, monitoring and control function
are supported
The overcurrent protection is combined with harmonic blocking and cold load pickup logic,
which can prevent mal-operation affected by inrush current while the transformer is no-load
energized
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
Trang 241
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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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 Current Differential Protection (87M) 2-12 2.11.2 Phase Overcurrent Protection (50/51P) 2-13 2.11.3 Earth Fault Overcurrent Protection (50/51G) 2-14 2.11.4 Negative-sequence Overcurrent Protection (50/51Q) 2-15 2.11.5 RMS Overcurrent Protection (50/51R) 2-16 2.11.6 Undercurrent Protection (37) 2-16 2.11.7 Thermal Overload Protection (49) 2-16 2.11.8 Phase Overvoltage Protection (59P) 2-16 2.11.9 Positive-sequence Overvoltage Protection (59Pos) 2-17 2.11.10 Negative-sequence Overvoltage Protection (59Q) 2-17 2.11.11 Residual Overvoltage Protection (59G) 2-17 2.11.12 Phase Undervoltage Protection (27P) 2-17 2.11.13 Reverse Power Protection (32R) 2-18 2.11.14 Underpower Protection (37P) 2-18 2.11.15 Power Factor Protection (55) 2-18 2.11.16 Overfrequency Protection (81O) 2-19 2.11.17 Underfrequency Protection (81U) 2-19 2.11.18 Frequency Rate-of-change Protection (81R) 2-19 2.11.19 Breaker Failure Protection (50BF) 2-20
2.12 Communication Functions 2-20
2.12.1 GOOSE 2-20
Trang 272
“System phase sequence”, which can be set by PCS-Studio, this setting
informs the device of the actual system phase sequence, either ABC or ACB CT and VT inputs on the device, labelled as A, B and C, must be connected to system phase A, B and C for correct operation
Number Up to 7 current inputs according to various applications
600V 660V
Phase-to-phase 519V
1038V 1141V
Trang 28100Vac/110Vac/115Vac 120Vac/127Vac/220Vac 230Vac/240Vac/250Vac
Permissible voltage range
IEC 61000-4-11-2007 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
2.1.4 Binary Input
Settable pickup voltage and drop-out voltage
On value (default set) 69.3~132Vdc 78.75~160Vdc 138.6~264Vdc 157.5~300Vdc
Trang 292
Maximum permissible voltage 300Vdc
Withstand voltage 2000Vac, 2800Vdc (1 min)
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 drop-out voltage
Maximum permissible voltage 300Vac
Withstand voltage 2000Vac, 2800Vdc (1 min)
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 drop-out voltage
Maximum permissible voltage 300Vdc
Withstand voltage 2000Vac, 2800Vdc (1 min)
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
Trang 302
2.1.5 Binary Output
Tripping/signalling contact
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
Trang 312
Breaking capacity (L/R=40ms)
10A@48V 10A@110V 10A@125V 10A@250V
Cyclic capacity (4 cycle/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@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 8.66kg (6U, 1/2 × 19") Approx 6.93kg (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)
Rear side, connection terminals IP20
Trang 32Baud 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
Trang 332
For Station Level and Process 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
Damp heat test, cyclic IEC60068-2-30:2005
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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
Surge immunity test
IEC 60255-26:2013 Power supply, AC input, I/O port: class Ⅳ, 1.2/50μs
Trang 35Spot 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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- 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 3.0
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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2.8.1 Ring Ferrule
Connection Type Wire Size Screw Type Torque
Grounding (Earthing) Connection BVR type, 0.8~4mm2 lead M3 0.6~0.8 N⋅m
2.8.2 Pin Ferrule
Connection Type Wire Size Screw Type Torque
2.9 Measurement Scope and Accuracy
Item Range Accuracy
≤ 2.0% of rating (0.05~1.00In, 0.05~1.00Un)
≤ 1.0% of applied quantities (1.00~4.00In, 1.00~1.50Un)
Reactive power (VAr)
0.05~1.50Un 0.05~4.00In
≤ 2.0% of rating (0.05~1.00In, 0.05~1.00Un)
≤ 1.0% of applied quantities (1.00~4.00In, 1.00~1.50Un)
Apparent power (VA)
0.05~1.50Un 0.05~4.00In
≤ 2.0% of rating (0.05~1.00In, 0.05~1.00Un)
≤ 1.0% of applied quantities (1.00~4.00In, 1.00~1.50Un)
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Energy (Wh)
0.05~1.50Un 0.05~4.00In
≤ 2.0% of rating (0.05~1.00In, 0.05~1.00Un)
≤ 1.0% of applied quantities (1.00~4.00In, 1.00~1.50Un)
Energy (VAh)
0.05~1.50Un 0.05~4.00In
≤ 2.0% of rating (0.05~1.00In, 0.05~1.00Un)
≤ 1.0% of applied quantities (1.00~4.00In, 1.00~1.50Un)
2.10 Management Function
2.10.1 Control Performance
Response time of local control ≤1s
Response time of remote control ≤3s
2.10.2 Clock Performance
Real time clock accuracy ≤1s/day
Accuracy of GPS synchronization ≤1ms
External time synchronization IRIG-B (200-98), PPS, IEEE1588 or SNTP protocol
2.10.3 Fault and Disturbance Recording
Duration & Recording position Settable pre-disturbance, post-disturbance and maximum recorded
duration
2.10.4 Binary Input Signal
Resolution of binary input signal ≤1ms
Binary input mode Potential-free contact
2.11 Protective Functions
2.11.1 Current Differential Protection (87M)
2.11.1.1 Instantaneous Current Differential Protection
Current setting accuracy ≤5%×Setting or 0.02 p.u., whichever is greater
Pickup time ≤ 25ms (at 2 times current setting)
Operating time ≤ 25ms (at 2 times current setting)
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2.11.1.2 Biased Current Differential Protection
Current setting accuracy ≤2.5%×Setting or 0.02 p.u., whichever is greater
Pickup time ≤ 25ms (at 2 times current setting)
Operating time (with blocking criteria) ≤ 35ms (at 2 times current setting)
2.11.1.3 Magnetic Balance Differential Protection
Current setting accuracy ≤1%×Setting or 0.01In, whichever is greater
Pickup time ≤ 25ms (at 2 times current setting)
Operating time ≤ 25ms (at 2 times current setting)
2.11.2 Phase Overcurrent Protection (50/51P)
Without direction controlled element
Current setting accuracy ≤1%×Setting or 0.01In, whichever is greater
Voltage setting accuracy ≤1%×Setting or 0.1V, whichever is greater
Operating time delay accuracy
(Definite-time characteristics) ≤1%×Setting or 25ms (at 2 times current setting)
Operating time delay accuracy
(Inverse-time characteristics) ≤5% of calculated value + 1% current tolerance or 35ms (1.2≤I/Ip≤30)
Drop-out time accuracy (Definite-time
Drop-out time accuracy (Inverse-time
characteristics) ≤5% of calculated value or 30ms
With direction controlled element
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Current setting accuracy ≤1%×Setting or 0.01In, whichever is greater
Voltage setting accuracy ≤1%×Setting or 0.1V, whichever is greater
Operating time delay accuracy
(Definite-time characteristics) ≤1%×Setting or 40ms (at 2 times current setting)
Operating time delay accuracy
(Inverse-time characteristics) ≤5% of calculated value + 1% current tolerance or 35ms (1.2≤I/Ip≤30) Drop-out time accuracy (Definite-time
Drop-out time accuracy (Inverse-time
characteristics) ≤5% of calculated value or 30ms
2.11.3 Earth Fault Overcurrent Protection (50/51G)
Without direction controlled element
Current setting accuracy ≤1%×Setting or 0.01In, whichever is greater
Operating time delay accuracy
(Definite-time characteristics) ≤1%×Setting or 25ms (at 2 times current setting)
Operating time delay accuracy
(Inverse-time characteristics) ≤5% of calculated value + 1% current tolerance or 35ms (1.2≤I/Ip≤30) Drop-out time accuracy (Definite-time
Drop-out time accuracy (Inverse-time
characteristics) ≤5% of calculated value or 30ms
With direction controlled element
Current setting accuracy ≤1%×Setting or 0.01In, whichever is greater
Voltage setting accuracy ≤1%×Setting or 0.1V, whichever is greater
Operating time delay accuracy
(Definite-time characteristics) ≤1%×Setting or 40ms (at 2 times current setting)