PCS 915SC x technical manual EN overseas general x r1 20

Copyright © 2020 NR. All rights reserved.
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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
The technical manual describes the protection, automation, and supervision functions of

PCS-915SC centralized busbar differential 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

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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.

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

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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.

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

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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

⚫

Binary signal Input
BI

xxx

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⚫

Signal input
SIG

⚫

Setting input
SET

⚫

xxx

Enable input
EN

⚫

xxx

xxx

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

t

⚫

Timer
Fixed delay pickup (10ms), fixed delay drop-off (2ms)
10ms

⚫

2ms

Timer
Settable delay pickup, fixed delay drop-off
[Tset1]

⚫

0ms

Timer
Fixed delay pickup, settable delay drop-off
0ms

⚫

[Tset2]

Timer
Settable delay pickup, settable delay drop-off

[Tset1]

⚫

[Tset2]

Generator

G
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⚫

Transformer

⚫

Reactor

⚫

Motor

M

⚫

Capacitor

C
⚫

Busbar

⚫

Circuit breaker
52

⚫

Current transformer
3CT

*

⚫

Voltage transformer

3VT

⚫

Disconnector

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⚫

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 the theories of protection, control, supervision,
measurement, etc. and the structure & technical data of relevant hardware. 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 Introduction
Introduces features, summarizes functions and applications of the device.

2 Technical Data
Lists device specifications, type tests and ratings.

3 Protection Functions
Describes the function of various protection elements, gives detailed specifics on protection
scheme logic, provides the relevant logic diagrams.
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4 Measurement
Provides information on viewing fundamental and rms metering quantities for voltages and
currents.

5 Supervision
Describes self-supervision technique to help diagnose potential difficulties should these occur.

6 System Function
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.

7 Hardware
Describes the hardware of the PCS series device family and provides general information on the
product structure and the modules technical data.

8 Settings
Provides a list of all 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.

Disclaimer
This document has been subjected to rigorous technical review before being published, but the
deviations cannot be totally excluded. It is revised at regular intervals, and any modifications and
amendments are included in the subsequent issues. In the case where errors are detected, the

reader is requested to inform the manufacturer.
The content of this manual has been compiled for information purposes only. Although NR has
done its best to ensure that the document remains the most precise and the most up-to-date as
possible, NR shall not assume any liability for defects and damage which result through use of the
information contained herein.

Document Revision History
PN: ZL_PCS-915SC_X_Technical Manual_EN_Overseas General_X
Current version: R1.20

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Corresponding Version
Date
Document
R1.00

R1.01

Description of change

Software
R1.00

R1.00

2019-01-29

⚫

Form the original manual.

⚫

The current settings conversion description is added;

⚫

The setting range of the system setting [Active_Grp] is
modified;

2019-03-11
⚫

The binary input [87B.BI_ExtBlk] and the alarm signal
[87B.Alm_BI_ExtBlk] are deleted;

⚫

The logics of 87B, 50DZ, 50SOTF are modified.

⚫

The

busbar

differential

protection

setting

[Bayn.50BF.En_I2_1P] is deleted;
⚫

Addition of GOOSE & SV communication information,
such as introduction, hardware specification, alarm
signals

and

communication

settings,

for

digital

substation;

R1.10

R1.21

2019-11-25

⚫

The binary input [@Bayn.BI_En_Force_52b] is added;

⚫

The Section “Busbar Protection Operation Mode
Identification” in Chapter 3 is modified;

⚫

BC/BS dead zone differential protection is added;

⚫

Phase overvoltage protection and phase undervoltage
protection are added;

⚫

Overfrequency protection, underfrequency protection
and frequency rate-of-change protection are added;

⚫

Breaker failure protection logic is modified;

⚫

VT circuit supervision function is modified.

⚫

The

busbar

differential

protection

settings

[87B.t_Dly1_Biased] and [87B.t_Dly2_Biased] are
added;
R1.11

R1.21

2020-03-04

⚫

The

dead

zone

fault

protection

settings

[BC.50DZ.En_Blk50BF] and [Fdr.50DZ.En_Blk50BF]
are added;

R1.12

R1.21

2020-04-09

⚫

The supervision setting [Opt_CBPosChk] is added;

⚫

The logic of breaker failure protection is modified.

⚫

The front view, the typical rear view and the typical
hardware

configuration

of

the

extended

unit

PCS-915SC-EU are added.

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⚫

Section 3.3 and Section 3.4 are added;

⚫

Many signals are added for each protection element;

⚫

The setting [50DZ.En_BlkDPFC] is added;

⚫

The logic diagram of BC/BS dead zone fault protection
and feeder dead zone fault protection are modified;

⚫

The logic diagram of BC/BS dead zone differential
protectionis modified;

R1.20

R1.23

2020-07-02

⚫

The logic of breaker failure protection is modified;

⚫

The bay CT circuit failure function is added;

⚫

External binary input trip busbar function is modified;

⚫

Section 3.22.2 is modified;

⚫

Section 6.1 is modified;

⚫

Section 6.3.6 is added;

⚫

The device setting [En_PopupRecord_Blk] is added;

⚫

Label settings are modified.

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1 Introduction

1 Introduction

1

Table of Contents
1.1 Application ....................................................................................................... 1-1
1.2 Functions ......................................................................................................... 1-1
1.3 Features............................................................................................................ 1-4

List of Figures
Figure 1.2-1 Functional diagram of PCS-915SC....................................................................... 1-1

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1

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1 Introduction

1.1 Application
PCS-915SC centralized busbar relay integrates busbar differential protection, bus coupler/section
protection (includes overcurrent protection, switch-on-to-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 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).

1.2 Functions
The function diagram of this relay is shown in Figure 1.2-1.

}
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 1.2-1 Functional diagram of PCS-915SC

1

Protection Functions

The functions of this relay include protective functions and auxiliary testing functions, and the
functions of this relay are listed in the following tables.
No.
1

Function

Busbar differential protection

Remark

⚫

Steady-state

percentage

ANSI
restraint

busbar

87B

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1 Introduction
differential protection

⚫

1

DPFC percentage restraint busbar differential
protection

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-on-to-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

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⚫

Differential current calculation

⚫

Sequence component calculation

⚫

Event recorder including 1024 disturbance records, 1024 binary events, 1024 supervision
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

1

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

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1 Introduction

⚫

1

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

⚫

4 programmable operator pushbuttons with user-configurable labels

⚫

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

1.3 Features
⚫

Unified software and hardware platform, comprehensive power grid solutions of protection,
control, measurement and monitoring, easy to use and maintain.

⚫

High reliability and redundancy design for drive systems of the sampling circuit and the output

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1 Introduction

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 flush mounting and rack mounting methods.

⚫

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

⚫

Protection class of front side is up to IP54

⚫

PCS-Studio configuration 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.
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1 Introduction

1

⚫

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

⚫

Applicable for single busbar, single bus with bus section, double busbar, double busbar with
bus section, etc. busbar arrangement, and the busbar differential protection can connect up to
6 busbars and 36 bays.

⚫

Comprehensive functionality including phase segregated current differential protection,
breaker failure protection, overcurrent protection and dead zone protection, etc.

⚫

The phase segregated differential protection adopts both of deviation of power frequency
component (DPFC) and steady-state component, that can guarantees fast and reliable

performance during CT saturation. It can ensure no mal-operation of external fault and fast
operation of internal fault in the case of the correct transfer time of CT is no less than 3ms.

⚫

With patented adaptive-weight anti-saturation algorithm and harmonic restrain algorithm, the
DPFC differential protection operates fast and not affected by load current, the typical
operation time is within 15ms.

⚫

Voltage blocking is an option for the current differential protection and breaker failure
protection, which will improve the reliability of current differential protection and breaker failure
protection.

⚫

With CT circuit supervision function, once CT circuit failure is detected, the user can choose
discrimination zone or check zone differential protection blocking.

⚫

Both of phase segregated and three phase breaker failure binary inputs can be connected for
breaker failure protection, users can choose whether or not blocked by the current criterion.
The overcurrent element of breaker failure protection have been especially treated, the
drop-off time of it is no more than 12ms.

⚫

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

inverse-time drop-out curve selection is supported.

⚫

With the disconnector position status monitor and memory function, the device can check the
rationality of the memorized disconnector position status and automatically correct the error.

⚫

Users can disable the discrimination zone differential element by the external binary input
during the busbar maintenance. Also the bay can be disabled by the external binary input
when it is in maintenance.

⚫

LCD can display real-time main wiring diagram, the number of each bay, the state of each
breaker and disconnector, current and power flow, etc.

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2 Technical Data

2 Technical Data
Table of Contents
2.1 Electrical Specifications ................................................................................. 2-1
2.1.1 AC Current Input ................................................................................................................... 2-1

2.1.2 AC Voltage Input ................................................................................................................... 2-1
2.1.3 Power Supply ....................................................................................................................... 2-1
2.1.4 Binary Input .......................................................................................................................... 2-2
2.1.5 Binary Output........................................................................................................................ 2-3

2.2 Mechanical Specifications .............................................................................. 2-4
2.3 Ambient Temperature and Humidity Range .................................................. 2-5
2.4 Communication Port ....................................................................................... 2-5
2.4.1 EIA-485 Port ......................................................................................................................... 2-5
2.4.2 Ethernet Port ........................................................................................................................ 2-5
2.4.3 Optical Fiber Port ................................................................................................................. 2-6
2.4.4 Print Port............................................................................................................................... 2-6
2.4.5 Clock Synchronization Port .................................................................................................. 2-6

2.5 Type Tests ........................................................................................................ 2-7
2.5.1 Environmental Tests ............................................................................................................. 2-7
2.5.2 Mechanical Tests .................................................................................................................. 2-7
2.5.3 Electrical Tests...................................................................................................................... 2-7
2.5.4 Electromagnetic Compatibility .............................................................................................. 2-7

2.6 Certifications .................................................................................................... 2-9
2.7 Liquid Crystal Display (LCD) .......................................................................... 2-9
2.8 Terminals ........................................................................................................ 2-10
2.8.1 Ring Ferrule ........................................................................................................................ 2-10
2.8.2 Pin Ferrule .......................................................................................................................... 2-10

2.9 Measurement Scope and Accuracy ............................................................. 2-10
2.10 Management Function ................................................................................. 2-10
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2 Technical Data

2.10.1 Clock Performance ........................................................................................................... 2-10
2.10.2 Fault and Disturbance Recording..................................................................................... 2-11
2.10.3 Binary Input Signal ........................................................................................................... 2-11

2.11 Protective Functions ....................................................................................2-11

2

2.11.1 Current Differential Protection (87B/87DZ) ...................................................................... 2-11
2.11.2 Dead Zone Fault Protection (50DZ) ................................................................................. 2-11
2.11.3 Switch-on-to-fault Protection (50SOTF) ........................................................................... 2-11
2.11.4 Breaker Failure Protection (50BF).................................................................................... 2-11
2.11.5 Phase Overcurrent Protection (50/51P) ........................................................................... 2-11
2.11.6 Earth Fault Protection (50/51G) ....................................................................................... 2-12
2.11.7 Phase Overvoltage Protection (59P) ................................................................................ 2-12
2.11.8 Phase Undervoltage Protection (27P) .............................................................................. 2-12
2.11.9 Overfrequency Protection (81O) ...................................................................................... 2-13
2.11.10 Underfrequency Protection (81U)................................................................................... 2-13
2.11.11 Frequency Rate-of-change Protection (81R) ................................................................. 2-13

2.12 Communication Functions ......................................................................... 2-14
2.12.1 GOOSE ............................................................................................................................ 2-14

2.12.2 SV ..................................................................................................................................... 2-14

2-b

PCS-915SC Centralized Busbar Relay
Date: 2020-07-02


2 Technical Data

2.1 Electrical Specifications
2.1.1 AC Current Input
Phase rotation

ABC or ACB

Nominal frequency (fn)

50Hz, 60Hz

Rated current (In)

1A/5A (settable)

Linear to

0.05In~40In

2

Thermal withstand
-continuously

4In

-for 10s

30In

-for 1s

100In

-for half a cycle

250In

Burden

<0.05VA/phase @1A, <0.25VA/phase @5A

2.1.2 AC Voltage Input
Phase rotation

ABC or ACB

Nominal frequency (fn)

50Hz, 60Hz

Rated voltage (Un)

100V~130V

Linear to

1V~300V

Thermal withstand

Phase-to-ground

Phase-to-phase

-continuously

300V

519V

-10s

600V

1038V

-1s

660V

1141V

Burden at rated

<0.10VA/phase @100V

2.1.3 Power Supply
100Vac/110Vac/115Vac/120Vac
Rated voltage

110Vdc/125Vdc/220Vdc/250Vdc

127Vac/220Vac/230Vac/240Vac
250Vac

IEC 61000-4-11:2017
Permissible voltage range
IEC 61000-4-29:2000

2-1

PCS-915SC Centralized Busbar Relay
Date: 2020-07-02