PCS 915SC x application manual EN overseas general x r1 10

qi



Copyright © 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
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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.



Preface

Preface

About This Manual
This manual describes the configuration scheme in multiple application scenarios for PCS-915SC
Centralized Busbar Relay, including how to connect the device to a computer and to configure
functions, such as protection, measurement and supervision in using of configuration tool.
To start using this manual for application configuration, user should know the basic operations of
the configuration tool PCS-Studio.

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.

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Preface

Disconnect 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.

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Preface

During installation, maintenance, or testing of the optical ports, ONLY use
the 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.

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Preface

The 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.

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".

Symbols
⚫

AND Gate

&

⚫

&

>=1

>=1

OR Gate

>=1

⚫

&

Comparator

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Preface

⚫

Signal input
SIG

⚫

Setting input
SET

⚫

xxx

Enable input
EN

⚫

xxx

xxx

Timer
Optional definite-time or inverse-time characteristics
Timer
t
t

⚫

Timer
Fixed delay pickup (10ms), fixed delay dropout (2ms)
10ms

⚫

2ms

Timer
Settable delay pickup, fixed delay dropout
[Tset1]

⚫

0ms

Timer
Fixed delay pickup, settable delay dropout
0ms

⚫

[Tset2]

Timer
Settable delay pickup, settable delay dropout
[Tset1]

[Tset2]

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Preface

⚫

Generator

G

⚫

Transformer

⚫

Reactor

⚫

Motor

M

⚫

Capacitor

C

⚫

Busbar

⚫

Circuit breaker
52

⚫

Current transformer
3CT

*

⚫

Voltage transformer

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Preface

3VT

⚫

Disconnector

⚫

Earth

Three-phase Corresponding Relationship
Basic
A, B, C

L1, L2, L3

R, Y, B

AN, BN, CN

L1N, L2N, L3N

RN,YN, BN

ABC

L123

RYB

U (voltage)

V

U
Example

Ia, Ib, Ic, I0

IL1, IL2, IL3, IN

IR, IY, IB, IN

Ua, Ub, Uc

VL1, VL2, VL3

UR, UY, UB

Uab, Ubc, Uca

VL12, VL23, VL31

URY, UYB, UBR

U0, U1, U2

VN, V1, V2

UN, U1, U2

Warranty
This product is covered by the standard NR 10-year warranty. For warranty details, please consult
the manufacturer or agent for warranty information.

Document Structure
This manual is a comprehensive work covering all aspects of relay application and use. Read the
sections that pertain to your application to gain valuable information about using the PCS-915SC.
To concentrate on the target sections of this manual as your job needs and responsibilities dictate.
An overview of each manual section and section topics follows.

1 Functions and Application
Introduces summarizes functions and typical applications of the device.

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Preface

2 Configuration Tool
Introduces the communication interface of the device and the corresponding software and
hardware settings by which PCS-Studio connects with the device.

3 Basic Function Configuration
Introduces how to configure the basic function of the device, such as, enabling/disabling functions,
setting HMI (human machine interface), setting communication protocol and network structure,
binary inputs, binary outputs, user-defined logic, authority management, etc.

4 Protection Function Configuration
Introduces how to configure protection functions, including enabling/disabling functions,
configuration methods and corresponding settings.

5 Measurement Function Configuration
Introduces the configuration method of the sampling channel for different typical application
scenarios.

6 Supervision Function Configuration
Introduces the configuration method of supervision functions, such as, secondary circuit
supervision, tripping statistic, etc.

Appendix A Glossary
Describes the abbreviations adopted in this manual.

Document Revision History
PN: ZL_PCS-915SC_X_Application Manual_EN_Overseas General_X
Current version: R1.10
Corresponding Version
Date
Document

Software

R1.00

R1.21

R1.10

R1.23

2019-12-29

Description of change

⚫

Form the original manual.

⚫

Section 3.2.2 is modified;

⚫

Section 3.2.2.6 is added;

⚫

Section 3.2.3 is modified;

⚫

Section 3.5.3 and Section 3.6.3 are added;

⚫

Section 4.1.3 is modified;

⚫

Section 4.8.3 is modified;

2020-06-03

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1 Functions and Application

1 Functions and Application

1

Table of Contents
1.1 Functions ......................................................................................................... 1-1
1.2 Typical Application .......................................................................................... 1-4
1.2.1 Single Busbar Application .................................................................................................... 1-5
1.2.2 Double Busbars Application ................................................................................................. 1-6

List of Figures
Figure 1.1-1 Functional diagram of PCS-915SC....................................................................... 1-1

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1 Functions and Application

1.1 Functions
The PCS-915SC centralized busbar relay integrates busbar differential protection, bus
coupler/section protection (includes overcurrent protection, switch-onto-fault protection, dead
zone fault protection, dual CTs BC/BS dead zone differential protection and breaker failure
protection), feeder protection (includes overcurrent protection, dead zone fault protection and
breaker failure protection), voltage protection (phase overvoltage protection and undervoltage
protection) and frequency protection (overfrequency protection, underfrequency protection and
frequency rate-of-change protection). With its flexibility and the powerful PCS-Studio configuration
tool, PCS-915SC offers future-oriented busbar solutions with high investment security and low
operating costs.
The functional overview of this relay is shown as below.

}
3 CTs

3 CTs

3 CTs

*
52

Bay 1

*
52

……

Bay 2

87B

50BF

50DZ

FR

VTS

59P

27P

81O

81U

81R

50/51

CTS

}

*
52

Bay n
*

Busbar 1

50SOTF

3 CTs
52

Busbar 2

Bus coupler

Figure 1.1-1 Functional diagram of PCS-915SC

The PCS-915SC is widely adopted not only for conventional substations, but also for digital
substations. It supports IEC 61850 Editions 1 and 2 and provides GOOSE and SV 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

Protection functions

No.

Function

Remark

⚫

Steady-state

percentage

ANSI
restraint

busbar

differential protection
1

Busbar differential protection

87B

⚫

DPFC percentage restraint busbar differential
protection

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1 Functions and Application

1
2

3

4

5

6

Bus coupler/section protection

Feeder protection

⚫

Breaker failure protection (50BF)

50BF

⚫

Dead zone fault protection (50DZ)

50DZ

⚫

Dead zone differential protection (87DZ)

87DZ

⚫

Switch-onto-fault protection (50SOTF)

50SOTF

⚫

Overcurrent protection (50/51)

50/51

⚫

Breaker failure protection (50BF)

50BF

⚫

Dead zone fault protection (50DZ)

50DZ

⚫

Overcurrent protection (50/51)

50/51

⚫

Phase overvoltage protection

59P

⚫

Phase undervoltage protection

27P

⚫

Overfrequency protection

81O

⚫

Underfrequency protection

81U

⚫

Frequency rate-of-change protection

81R

⚫

Dynamic busbar replica

⚫

CT circuit supervision

⚫

VT circuit supervision

⚫

Disconnector position alarm

Voltage protection

Frequency protection

Auxiliary function

DPFC is the abbreviation of “deviation of power frequency component”.
When a fault occurs in the power system, the fault current consists of three
parts: the pre-fault power frequency components, the power frequency
variables during the fault and the transient variables during the fault. DPFC
is the power frequency variables during the fault.
2

Measurement functions

⚫

Phase angle measurement

⚫

Differential current calculation

⚫

Sequence component calculation

⚫

Event Recorder including 1024 disturbance records, 1024 binary events, 1024 supervision
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1 Functions and Application

events, 256 control logs and 1024 device logs.
⚫

Disturbance recorder including 32 disturbance records with waveforms (The file format of
disturbance recorder is compatible with international COMTRADE file.)

3

Supervision functions

⚫

Self-diagnostic

⚫

Frequency supervision

⚫

DC power supply supervision

⚫

CT circuit supervision

⚫

VT circuit supervision

⚫

Disconnector supervision

4

Communication

⚫

Up to four 10Base-T/100Base-TX copper Ethernet ports using IEC 61850, DNP3.0 or IEC
60870-5-103 over TCP/IP

⚫

Up to four 100Base-FX optical Ethernet ports using IEC 61850, DNP3.0 or IEC 60870-5-103
over TCP/IP

⚫

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 RS-485 serial port for clock synchronization

5

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

⚫

Support IEC 61850-9-2LE SV via extendable electrical or optical Ethernet port

6

User Interface

⚫

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

⚫

4 programmable operator pushbuttons with user-configurable labels

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1

1 Functions and Application

1

⚫

Up to 18 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 phase selection

⚫

System phase sequences rotation function (ABC or ACB)

⚫

Clock synchronization

⚫



IRIG-B: IRIG-B via RS-485 differential level, TTL level or optical fiber interface



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/DNP3.0): Clock messages through IEC103 protocol, Modbus
protocol and DNP3.0 protocol

Cyber security


NERC CIP



IEC 62351



IEC 62443



IEEE 1686

1.2 Typical Application
The differential circuits of PCS-915SC include one check zone differential circuit and up to six
discriminating zone differential circuits, it can protect up to six busbars.
The PCS-915SC includes one central unit (CU, 6U chassis) and up to two extended units (EU, 6U
chassis). If busbar voltage is not connected, the central unit can connect up to 12 bays (36 AC
current inputs). If busbar voltage is connected, the central unit can connect 6 bays (18 AC current
inputs) and the voltage of 6 busbars (18 AC voltage inputs), or 8 bays (24 AC current inputs) and

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1 Functions and Application

the voltage of 4 busbars (12 AC voltage inputs), or 10 bays (30 AC current inputs) and the voltage
of 2 busbars (6 AC voltage inputs). Each extended unit can connect up to 12 bays (36 AC current
inputs). Please refer to following table for details.
Analog input
PCS-915SC

Busbar voltage is not

Busbar voltage is connected

connected

Binary

Binary

input

output

18 AC current inputs +18 AC voltage inputs or
CU

36 AC current inputs

24 AC current inputs +12 AC voltage inputs or

233

124

466

248

699

372

30 AC current inputs +6 AC voltage inputs
54 AC current inputs +18 AC voltage inputs or
1CU+1EU

72 AC current inputs

60 AC current inputs +12 AC voltage inputs or
66 AC current inputs +6 AC voltage inputs
90 AC current inputs +18 AC voltage inputs or

1CU+2EU

108 AC current inputs

96 AC current inputs +12 AC voltage inputs or
102 AC current inputs +6 AC voltage inputs

1.2.1 Single Busbar Application

}
3 CTs

Bay 1

50BF

50DZ

FR

VTS

59P

27P

81O

81U

81R

50/51

CTS

3 CTs

3 CTs

*
52

87B

*
52

*
52

Bay 2

Bay n

Busbar 1

For single busbar application, the device can connect up to 36 bays, it provides busbar differential
protection, feeder protection functions (includes overcurrent protection, dead zone fault protection
and breaker failure protection), voltage protection (phase overvoltage protection and undervoltage
protection) and frequency protection (overfrequency protection, underfrequency protection and
frequency rate-of-change protection) etc.

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1 Functions and Application

1.2.2 Double Busbars Application

1
}
3 CTs

3 CTs

3 CTs
*
52

Bay 1
Busbar 1

*
52

Bay 2

……

87B

50BF

50DZ

FR

VTS

59P

27P

81O

81U

81R

50/51

CTS

}

*
52

Bay n
*

50SOTF

3 CTs
52

Busbar 2

Bus coupler

For double busbars application, the device can connect up to 36 bays, it can provide busbar
differential protection, bus coupler/section protection (includes overcurrent protection,
switch-onto-fault protection, dead zone fault protection and breaker failure protection), feeder
protection (includes overcurrent protection, dead zone fault protection and breaker failure
protection), voltage protection (phase overvoltage protection and undervoltage protection) and
frequency protection (overfrequency protection, underfrequency protection and frequency
rate-of-change protection) etc.

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2 Configuration Tool

2 Configuration Tool
Table of Contents
2.1 Brief Introduction to PCS-Studio.................................................................... 2-1
2.2 Connection to Debugging Computer ............................................................. 2-1
2.2.1 Via Front RJ45 Port .............................................................................................................. 2-1
2.2.2 Via Ethernet Interface on CPU Module ................................................................................ 2-2

2.3 Validation of Configuration ............................................................................. 2-2

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2 Configuration Tool

2

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2 Configuration Tool

2.1 Brief Introduction to PCS-Studio
PCS-Studio is a configuration and debugging tool designed for PCS S series devices. It provides
the following configuration and debugging functions:
⚫

Device information configuration
Viewing and editing project name, user configuration file version, file modification time, etc.

⚫

Global function configuration
MOT selection, system configuration, function object activation/deactivation, etc.

⚫

Human-machine interface configuration
Single Line Diagram (SLD) drawing for LCD display, definition of LED indicators, shortcut
keys, user-level waveform recording, etc.

⚫

Communication configuration
Support of multiple communication protocols, including IEC 61850 (Edition 1 & Edition 2), IEC
60870-5-103, DNP3.0, Modbus, etc.

⚫

IO signal configuration
Binary inputs, binary outputs, AC and DC analogue inputs, etc.

⚫

User-defined logic programming
Complete and rich symbol library for user-defined logic programming.

⚫

Parameter setting
Setting, import and export of device parameters.

⚫

Online debugging
Debugging through visual pages and virtual LCD screen.

2.2 Connection to Debugging Computer
On the front panel of the device, there is a multiplex RJ45 port which is the debugging port for
connection to a portable computer. Meanwhile, the CPU plug-in module is equipped with several
Ethernet interfaces which may also be used to communicate with debugging computer.

2.2.1 Via Front RJ45 Port
By default, the IP address of front debugging port is “100.100.100.100” with the subnet mask
“255.255.255.000”. If this address conflicts with any other Ethernet port on CPU module. Through
the device front human-machine interface, please call up the modification menu by pressing the

key combination "◄ ＋ ◄ － ENT" under the default LCD display screen and change the
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2 Configuration Tool

default address.

2.2.2 Via Ethernet Interface on CPU Module

2

Firstly, a connection between the device and the computer must be established by setting the IP
address and subnet mask of the corresponding interfaces. Configure the IP address and the
subnet mask of corresponding Ethernet interface through MainMenu → Settings → Global
Settings → Comm Settings → General Comm Settings.
The IP addresses and the subnet masks of device PC should be in the same network segment.
Take the second Ethernet interface (LAN2) on CPU module as an example:
Device

Debugging PC

IP address

[IP_LAN2] = 198.87.96.XXX

198.87.96.102

Subnet mask

[Mask_LAN2] = 255.255.255.0

255.255.255.0

LAN enabling setting

[En_LAN2] = Enabled

“XXX” can be any value from 0 to 255 except 102.

2.3 Validation of Configuration
To take effect of all kinds of offline configuration work through PCS-Studio, it is necessary to
regenerate the device configuration file (*.devs) and download it to the device. A reboot of device
is obligatory after the download for the validation of any modification.

All function configuration described in the following chapters are offline
tasks, which requires the “file generation, file downloading and device
reboot” process for validation.

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3 Basic Function Configuration

3 Basic Function Configuration
Table of Contents
3.1 Device Information .......................................................................................... 3-1
3.2 Global Configuration ....................................................................................... 3-1
3.2.1 MOT Selection ...................................................................................................................... 3-1
3.2.2 Single Line Diagram Config ................................................................................................. 3-3
3.2.3 System Config .................................................................................................................... 3-22
3.2.4 Disturbance Fault Recording .............................................................................................. 3-26

3.3 Human Machine Interface Configuration ..................................................... 3-29
3.3.1 Single Line Diagram Display .............................................................................................. 3-29
3.3.2 LED Indicators .................................................................................................................... 3-32
3.3.3 Shortcut Keys ..................................................................................................................... 3-33
3.3.4 Function Keys..................................................................................................................... 3-34
3.3.5 Labels on Front Panel ........................................................................................................ 3-36

3.4 Station Communication ................................................................................ 3-38
3.4.1 RSTP .................................................................................................................................. 3-38
3.4.2 PRP .................................................................................................................................... 3-39
3.4.3 HSR .................................................................................................................................... 3-39
3.4.4 Serial Cascade ................................................................................................................... 3-40

3.5 Binary Inputs .................................................................................................. 3-42
3.5.1 Selection of BI Module ....................................................................................................... 3-42
3.5.2 Input Signal from BI Module ............................................................................................... 3-43
3.5.3 Binary Input Signals ........................................................................................................... 3-44
3.5.4 Modify Signal Description ................................................................................................... 3-48
3.5.5 Modify Signal Parameter .................................................................................................... 3-48

3.6 Binary Outputs ............................................................................................... 3-49
3.6.1 Selection of BO Module...................................................................................................... 3-49
3.6.2 Output Signal to BO Module .............................................................................................. 3-50
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