CYG PRS-7910 User manual

PRS-7910
Station Manager
Instruction Manual
CYG SUNRI CO., LTD.

Preface
PRS-7910 i
Preface
Introduction
This guide and the relevant operating or service manual documentation for the equipment provide
full information on safe handling, commissioning and testing of this equipment.
Documentation for equipment ordered from CYG SUNRI CO., LTD. is dispatched separately from
manufactured goods and may not be received at the same time. Therefore this guide is provided
to ensure that printed information normally present on equipment is fully understood by the
recipient.
Before carrying out any work on the equipment, the user should be familiar with the contents of
this manual and read relevant chapters carefully.
This chapter describes the safety precautions recommended when using the equipment. Before
installing and using the equipment, this chapter must be thoroughly read and understood.
Health and Safety
The information in this chapter of the equipment documentation is intended to ensure that
equipment is properly installed and handled in order to maintain it in a safe condition.
When electrical equipment is in operation, dangerous voltages will be present in certain parts of
the equipment. Failure to observe warning notices, incorrect use, or improper use may endanger
personnel and equipment and cause personal injury or physical damage.
Before working in the terminal strip area, the equipment must be isolated.
Proper and safe operation of the equipment depends on appropriate shipping and handling,
proper storage, installation and commissioning, and on careful operation, maintenance and
servicing. For this reason, only qualified personnel may work on or operate the equipment.
Qualified personnel are individuals who:
Are familiar with the installation, commissioning, and operation of the equipment and of the
system to which it is being connected;
Are able to safely perform switching operations in accordance with accepted safety
engineering practices and are authorized to energize and de-energize equipment and to
isolate, ground, and label it;
Are trained in the care and use of safety apparatus in accordance with safety engineering
practices;
Are trained in emergency procedures (first aid).

Preface
ii PRS-7910
Instructions and Warnings
The following indicators and standard definitions are used:
DANGER! means that death, severe personal injury and considerable equipment damage
will occur if safety precautions are disregarded.
WARNING! means that death, severe personal and considerable equipment damage
could occur if safety precautions are disregarded.
CAUTION! means that light personal injury or equipment damage may occur if safety
precautions are disregarded.
NOTICE! is particularly applies to damage to device and to resulting damage of the protected
equipment.
DANGER!
NEVER allow the current transformer (CT) secondary circuit connected to this
equipment to be opened while the primary system is live. Opening the CT circuit will
produce a dangerously high voltage.
WARNING!
ONLY qualified personnel should work on or in the vicinity of this device. This personnel
MUST be familiar with all safety regulations and service procedures described in this
manual. During operating of electrical device, certain part of the device is under high
voltage. Severe personal injury and significant device damage could result from
improper behavior.
WARNING!
Do NOT touch the exposed terminals of this device while the power supply is on. The
generated high voltage causes death, injury, and device damage.
WARNING!
Thirty seconds is NECESSARY for discharging the voltage. Hazardous voltage can be
present in the DC circuit just after switching off the DC power supply.
CAUTION!
Earthing
Securely earthed the earthing terminal of the device.

Preface
PRS-7910 iii
Operating environment
ONLY use the device within the range of ambient environment and in an
environment free of abnormal vibration.
Ratings
Check the input ratings BEFORE applying AC voltage/current and power supply to
the device.
Printed circuit board
Do NOT attach or remove printed circuit board if the device is powered on.
External circuit
Check the supply voltage used when connecting the device output contacts to
external circuits, in order to prevent overheating.
Connection cable
Carefully handle connection cables without applying excessive force.
NOTICE!
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.
Copyright © 2017 CYG SUNRI. All rights reserved.
We reserve all rights to this document and to the information contained herein. Improper use in particular reproduction and dissemination
to third parties is strictly forbidden except where expressly authorized.
The information in this manual is carefully checked periodically, and necessary corrections will be included in future editions. If
nevertheless any errors are detected, suggestions for correction or improvement are greatly appreciated.
We reserve the rights to make technical improvements without notice.
CYG SUNRI CO., LTD.
Headquarters: No.13, Keji North 1st Road, North Area of Hi-tech
Industral Park, Nanshan District, Shenzhen, China
Tel: [phone]
Website: http://www.sznari.com
P/N: ZL_PRS-7910_X_Instruction Manual_EN_Overseas General_X
Version: 1.03

Preface
iv PRS-7910
Documentation Structure
The manual provides a functional and technical description of this relay and a comprehensive set
of instructions for the relay’s use and application.
All contents provided by this manual are summarized as below:
1 Introduction
Briefly introduce the application, functions and features about this relay.
2 Technical Data
Introduce the technical data about this relay, such as electrical specifications, mechanical
specifications, ambient temperature and humidity range, communication port parameters, type
tests, setting ranges and accuracy limits and the certifications that our products have passed.
3 Operation Theory
Introduce a comprehensive and detailed functional description of all protective elements.
4 Supervision
Introduce the automatic self-supervision function of this relay.
5 Management
Introduce the management function (measurement and recording) of this relay.
6 Hardware
Introduce the main function carried out by each module of this relay and providing the definition of
pins of each module.
7 Settings
List of all the settings and their ranges and step sizes, together with a brief explanation of each
setting and some notes about the setting application.
8 Configurable Function
Introduce the configurable function (such as protection function configuration, LED configuration,
binary input configuration and binary output configuration etc.) of this relay.
9 Communication
Introduce the communication port and protocol which this relay can support, IEC60970-5-103 and
IEC61850 protocols are introduced in details.
10 Installation
Introduce the recommendations on unpacking, handling, inspection and storage of this relay. A
guide to the mechanical and electrical installation of this relay is also provided, incorporating
earthing recommendations. A typical wiring connection to this relay is indicated.

Preface
PRS-7910 v
11 Commissioning
Introduce how to commission this relay, comprising checks on the calibration and functionality of
this relay.
12 Maintenance
A general maintenance policy for this device is outlined.
13 Decommissioning and Disposal
A general decommissioning and disposal policy for this relay is outlined.
14 Manual Version History
List the instruction manual version and the modification history records.

Table of Contents
PRS-7910 a
Table of Contents
Preface....................................................................................................i
Introduction.................................................................................................................i
Health and Safety .......................................................................................................i
Instructions and Warnings .......................................................................................ii
Table of Contents..................................................................................a
1 Introduction........................................................................................1
1.1 Application...........................................................................................................1
2 Technical Data....................................................................................3
2.1 Power Supply.......................................................................................................3
2.2 Communication rate............................................................................................3
2.3 hardware configuration table..............................................................................3
2.4 Signal transmission quantity parameter ...........................................................3
2.5 Related technical conditions..............................................................................4
2.6 Functions .............................................................................................................4
2.7 Features................................................................................................................5
3 Operation Theory...............................................................................8
3.1 Software Structure...............................................................................................8
3.2 Functions .............................................................................................................8
4 Supervision ......................................................................................10
4.1 Overview.............................................................................................................10
4.2 Supervision Alarms...........................................................................................10
5 Management.....................................................................................12
5.1 Real Time Data Interrogation............................................................................12
5.1.1 IO Status.................................................................................................................................12
5.1.2 Measurement .........................................................................................................................12
5.1.3 Tap Position............................................................................................................................12
5.1.4 Metering..................................................................................................................................12

Table of Contents
b PRS-7910
5.1.5 IED Parameter........................................................................................................................12
5.1.6 Setting Group.........................................................................................................................12
5.1.7 IED Setting.............................................................................................................................12
5.2 Event Recording................................................................................................12
5.2.1 SOE Records .........................................................................................................................13
5.2.2 Operation Logs.......................................................................................................................13
6 Hardware...........................................................................................14
6.1 Overview.............................................................................................................14
6.2 Human-Machine Interface.................................................................................14
6.3 PWR Module (Power Supply)............................................................................15
6.4 Interfaces............................................................................................................16
6.5 Digital Output Ports...........................................................................................17
6.6 Optional Ports....................................................................................................18
7 Settings.............................................................................................19
7.1 Overview.............................................................................................................19
7.2 Communication Settings ..................................................................................19
7.3 Identification Settings.......................................................................................19
7.4 Password Settings ............................................................................................20
8 Configurable Function.....................................................................21
8.1 Overview.............................................................................................................21
8.2 Function .............................................................................................................21
8.3 Application.........................................................................................................21
8.4 Event Recording................................................................................................22
8.4.1 Overview.................................................................................................................................22
8.4.2 Device Supervision Events ....................................................................................................22
8.4.3 Binary Status Change Events ................................................................................................22
8.4.4 Device Logs............................................................................................................................22
8.4.5 Switch Control Logs ...............................................................................................................22
8.4.6 DC Regulation Logs...............................................................................................................22
9 Communication................................................................................23

Table of Contents
PRS-7910 c
9.1 Overview.............................................................................................................23
9.2 Rear Communication Port Information............................................................23
9.2.1 RS-485 Interface....................................................................................................................23
9.2.2 Ethernet Interface...................................................................................................................25
9.2.3 IEC60870-5-103 Communication...........................................................................................26
9.2.4 DNP3.0 Communication.........................................................................................................26
9.3 IEC60870-5-103 Interface over Serial Port.......................................................26
9.3.1 Physical Connection and Link Layer......................................................................................27
9.3.2 Initialization.............................................................................................................................27
9.3.3 Time Synchronization.............................................................................................................27
9.3.4 Spontaneous Events ..............................................................................................................27
9.3.5 General Interrogation .............................................................................................................28
9.3.6 General Service......................................................................................................................28
9.3.7 Disturbance Records..............................................................................................................28
9.4 Messages Description for IEC61850 Protocol.................................................28
9.4.1 Overview.................................................................................................................................28
9.4.2 Communication Profiles.........................................................................................................29
9.4.3 MMS Communication Network Deployment..........................................................................30
9.4.4 Server Data Organization.......................................................................................................33
9.4.5 Server Features and Configuration........................................................................................35
9.4.6 ACSI Conformance.................................................................................................................36
9.4.7 Logical Nodes.........................................................................................................................40
9.5 DNP3.0 Interface................................................................................................40
9.5.1 Overview.................................................................................................................................40
9.5.2 Link Layer Functions..............................................................................................................41
9.5.3 Transport Functions................................................................................................................41
9.5.4 Application Layer Functions...................................................................................................41
10 Commissioning..............................................................................44
1.1 General...............................................................................................................44
10.1 Safety Instructions ..........................................................................................44

Table of Contents
d PRS-7910
10.2 Commission Tools...........................................................................................45
10.3 Setting Familiarization ....................................................................................45
10.4 Product Checks ...............................................................................................45
10.4.1 With the Relay De-energized...............................................................................................46
10.4.2 With the Relay Energized.....................................................................................................48
10.4.3 On-load Checks....................................................................................................................51
11 Installation ......................................................................................52
11.1 General .............................................................................................................52
11.2 Safety Instructions...........................................................................................52
11.3 Checking the Shipment...................................................................................53
11.4 Material and Tools Required...........................................................................53
11.5 Device Location and Ambient Conditions.....................................................53
11.6 Mechanical Installation....................................................................................54
11.7 Electrical Installation and Wiring....................................................................55
11.7.1 Grounding Guidelines...........................................................................................................55
11.7.2 Cubicle Grounding................................................................................................................55
11.7.3 Ground Connection on the Device.......................................................................................56
11.7.4 Grounding Strips and their Installation.................................................................................56
11.7.5 Guidelines for Wiring............................................................................................................57
11.7.6 Wiring for Electrical Cables..................................................................................................57
12 Maintenance ...................................................................................58
12.1 Maintenance Schedule....................................................................................58
12.2 Regular Testing................................................................................................58
12.3 Failure Tracing and Repair..............................................................................58
12.4 Replace Failed Modules..................................................................................58
13 Decommissioning and Disposal...................................................60
13.1 Decommissioning............................................................................................60
13.1.1 Switching off.........................................................................................................................60
13.1.2 Disconnecting cables...........................................................................................................60
13.1.3 Dismantling...........................................................................................................................60

Table of Contents
PRS-7910 e
13.2 Disposal............................................................................................................60
14 Manual Version History..................................................................61
Add hardware configuration table.......................................................................61
Add Signal transmission quantity parameter.....................................................61
Motify model PRS-7910G to PRS-7910 ..................................................................61

PRS-7910
PRS-7910 1
1 Introduction
1.1 Application
The PRS-7910 Station Manager is designed for the highest standards of performance, safety and
reliability to meet requirements of a complex substation automation system (SAS).As a part of the
SAS, it works as a station communication manager, which collects, stores and maps signals of
relays, measurement units, control units and other IEDs in the substation to higher-level systems
such as control center (CC) and distributed control system (DCS).
The PRS-7910 supports several protocols, such as IEC 61850, IEC 60870-5-101/104, IEC
60870-5-103, Modbus and DNP3.0. Data can be transmitted to and received from analog channel,
digital channel or network connected to CC, DCS or other system. The direct transmission mode
and the device independent avoid any interaction or influence with the substation SCADA
(Supervisory ControlAnd DataAcquisition) system.
Furthermore, the PRS-7910 can runs as a data acquisition and logic treatment platform and
provides various and flexible advanced function extensions.
NOTICE!
An additional protocol requirement besides the standard package can be customized,
please declares the protocol requirement clearly in the technical agreement and the
contract.
The PRS-7910 Station Manager is applicable to:
•Power system
Conventional substation and digital substation of various voltage levels
New-build substation SAS implementation and old substation reconstruction or upgrade
•Industrial system
Industrial automation applications: mine, petrochemical industry, metallurgy, etc.
•Transport system
Subway, light-rail and electrified railway system

PRS-7910
2 PRS-7910
Remote
Control
Center
Sever A Sever B Maintenance
Workstation
Printer
PRS-7910
Station Manager
PRS-7391
Satellite-
Synchronized
Clock
PRS-7961
Ethernet Switch
PRS-7741
BCU BP-2C Busbar
Relay PRS-753 Line
Differential Relay
Ethernet Network
Clock Synchronization Bus
PRS-791
Protocol Converter
Engineering
Workstation
Third-Party IEDs
Figure 1.1.1 Typical Ethernet networking scheme

PRS-7910
PRS-7910 3
2 Technical Data
2.1 Power Supply
Standard
IEC 60870-2-1:1995
Rated voltage
110VDC/125VDC/220VDC, 220VAC
Operating range
85-265VDC, 85-265VAC
Frequency
50/60Hz
2.2 Communication rate
Ethernet
Transmission rate
10/100/1000Mbps
Serial ports
Type
RS232, RS485
Baud rate
300 ~ 38400bps
Validation
1 start bit, 8 data bits, no verification and 1 stop bit
2.3 hardware configuration table
No.
Item
Parameter
1
CPU
Intel® Celeron® 2980U Processor (2 Cores, 2M Cache,
1.60 GHz)
2
Internal memory
4G DDR3L
3
Hard disk
128 GB SLC SATA electronic hard disk
4
Operating system
Linux debian 5.0（kernel 3.10）
5
Interface
3 USB2.0 interfaces.
6/12 RJ45, 10/100/1000M self-adaptive internet access.
8-channel RS232/485 serial port，in which, COM2-COM8
supports 232 parallel connection.
1-channel IEEE1588 time-check function and VGA
interface.
6
Power supply
DC 110V/220V（85V-265V）.
AC 220V（85-265V），50/60Hz.
2.4 Signal transmission quantity parameter
Maximum number of Measurement signals
51200
Maximum number of remote signals
65000
Maximum number of remote control signals
25600
Maximum number of remote pulse signals
4096
Maximum number of remote set signals
4096

PRS-7910
4 PRS-7910
2.5 Related technical conditions
Operating temperature range
-20°C ~ +60°C
Permissible humidity
5% ~ 95%
Atmospheric pressure
70kPa ~ 106kPa
Transport and storage temperature range
-40°C ~ +70°C
Electrostatic discharge test
GB13729, Class IV
Anti fast transient disturbance performance
GB13729, Class IV
Anti surge (impact) disturbance performance
GB13729, Class IV
Immunity to Conducted Disturbances included by
radio-frequency field
GB17626.6, Class III
Immunity to power frequency magnetic field
GB13729, Class V
Immunity to pulsed magnetic field
GB17626.9-2011, Class V
Anti high frequency electrical interference performance
GB6162
Immunity to Shockwave
GB/T 17626.12, Class IV
Insulation and voltage resistance
GB7261-87
Heat and humidity resistance
GB7261-87
2.6 Functions
The PRS-7910 is a powerful device, which can meet various requirements of different substations.
It contains a full series of basic functions focus on substation automation, as well as a variety of
advanced functions, which enhance the information transmission and management.
Relay information acquisition
Through serial or Ethernet port, this device can communicate with protection relays to gather
their information such as SOE records, tripping signals, supervision alarms, etc.
Measurement & control IED information acquisition
Through serial or Ethernet port, this device can communicate with measurement & control
IEDs and intelligent meters to gather their information such as sampled values, binary status,
energy metering signals, etc. Meanwhile, control and regulation operation could be done.
Auxiliary IED information acquisition
In addition, this device can gather information of other auxiliary devices, such as energy meter,
which is useful or crucial for substation.
Remote control center communication
This device can realize the communication with multiple remote control centers with different
protocols. The mapping transmission tables for different centers can be customized
independently.
Signal synthesis

PRS-7910
PRS-7910 5
The signal synthesis function is supported with the help of the configuration tool PRS-COMM.
Logical and mathematic operation of data such as AND, OR, NOT, XOR, +, -, x and ^ can be
proceed for the transmission to remote control center.
Command record and query
This device records all the commands and operations, which include control selection, control
execution, regulation, setting modification selection, setting modification execution, signal
reset, etc.All these records can be viewed and queried with filter.
History event record
This device automatically records the events during its service, which include self running
state change, alarm from connected IED, communication failure alarm, etc.
Double device redundancy strategy
Several device redundancy strategies are supported. The 2 devices are completely
electrically independent. Their power supplies, communication ports and programs run
independently. The inter-device exchange is realized by network connection.
Time synchronization
This device supports GPS (Global Positioning System) and BDS (BeiDou Navigation Satellite
System) timing signal reception.
This device provides both reception and transmission RS-485 ports for IRIG-B signal in order
to synchronize connected IEDs and to unify their clocks in one substation. It supports several
time synchronization formats, including IRIG-B, Pulse Per Second (PPS), network SNTP, etc.
On-line maintenance and monitoring
This powerful function enables the engineer to monitor the running status of this device
through network, including running information print, message display of Ethernet port and
serial port, on-field configuration, database view, virtual measurement, file transmission,
remote rebooting, etc. With all these advanced functions, the substation upgrade becomes
convenient.
Self-diagnostic
During service, the device keeps a full supervision on its software and hardware, once an
abnormality is found, the device will be self-blocked to ensure no maloperation is conducted,
meanwhile, an alarm will be sent out both digitally and hardware output as alarm. If the device
is dual equipped, at this time, if the abnormal device is on-duty then it will not only block itself
but also activate the backup device to take over all the tasks to ensure the substation is still
running normally. Meanwhile, the storage memory is checked regularly. If the storage memory
minimum threshold is reached, legacy data delete strategy will proceed automatically.
2.7 Features
High performance hardware architecture

PRS-7910
6 PRS-7910
Dual 1.60 GHz CPUs, 2GB RAM, optional 64 ~150 GB SLC SATA SSD storage memory for
historical data
Capable for data management and communication of the SAS for whole substation or power
plant
CPU usage < 25% during normal service; CPU usage < 50% during massive data treatment
Communication ports:
The 2U 19" chassis supports up to 8 Ethernet ports and 8 serial ports
Non-rotating storage is adopted to avoid vibration
A fully closed chassis with a complete panel
Completely separated spaces for electronic and electrical systems
Designed with anti-interference measures to enhance the device EMC.
W×D×H：425mm×280mm×88.1mm
Standard installation size
2U 19" small space occupation with full feature and flexible configuration
Power supply redundancy
Dual power supply module is an option. The extra power supply module will be placed at the
other side of the device rack and works independently.
Real-time database
The database is compatible with data model IEC 61850 and IEC 103
Support of multiple models including primary/secondary equipment model, association model,
primary schematic diagram model, etc.
Full modeling view and data information
Unified data acquisition and transmission.
History database
Embedded history database
Optional capacity: 64 ~150 GB SLC SATA
Multiple data storage types including historical SOE records, operation reports, wave files,
etc.
Multiple communication protocol support
Standard package for server: IEC 60870-5-101/104, DNP, Modbus
Standard package for client: IEC 60870-5-101/104, IEC 60870-5-103, DNP, Modbus