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CYG PRS-7910 Instruction Manual

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

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  • Page 1 PRS-7910 Station Manager Instruction Manual CYG SUNRI CO., LTD.

  • Page 3: Health And Safety

    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.

  • Page 4: Instructions And Warnings

    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. PRS-7910...
  • Page 5 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.
  • Page 6 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. PRS-7910...
  • Page 7 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. PRS-7910...

  • Page 9: Table Of Contents

    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 PRS-7910...

  • Page 10: Table Of Contents

    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 PRS-7910...
  • Page 11 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 PRS-7910...
  • Page 12 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 PRS-7910...
  • Page 13 Table of Contents 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...

  • Page 15: Introduction

    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).
  • Page 16 PRS-7910 Remote Control Center PRS-7391 PRS-7910 Maintenance Engineering Satellite- Sever A Sever B Station Manager Workstation Workstation Synchronized Clock Printer Ethernet Network PRS-7961 Ethernet Switch Clock Synchronization Bus PRS-791 Protocol Converter PRS-7741 BP-2C Busbar PRS-753 Line Relay Differential Relay Third-Party IEDs Figure 1.1.1 Typical Ethernet networking scheme...

  • Page 17: Technical Data

    PRS-7910 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 Type RS232, RS485 Serial ports Baud rate 300 ~ 38400bps Validation 1 start bit, 8 data bits, no verification and 1 stop bit 2.3 hardware configuration table...

  • Page 18: Related Technical Conditions

    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.

  • Page 19: Features

    PRS-7910 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.
  • Page 20 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"...
  • Page 21 PRS-7910 Advanced package: IEC 61850 server & client Customized package: Other customized protocol  Real-time data transmission Internal SOE transmission delay <100ms  Response to control centre The response success rate from device to control centre > 99%  Unified substation model transmission The data model transmission between substation and control center is realized by using the SCD file.

  • Page 22: Operation Theory

    PRS-7910 3 Operation Theory 3.1 Software Structure The PRS-7910 Station Manager applies embedded Linux operation platform. The modularization software design provides high flexibility and applicability. The software structure is shown in following figure: IEC 60870-5-101/ IEC60870-5-103 or Sunri 104 (Server)
  • Page 23 PRS-7910 Subsystem Description Binary input & output For acquisition of binary input and programmable output contact Time synchronization For timing signal reception, decode and transmission Signal Synthesis For edition and analysis of synthesized signal Redundancy Switchover Strategy For device redundancy mode...

  • Page 24: Supervision

    4 Supervision 4.1 Overview The PRS-7910 Station Manager is in quiescent state under normal conditions, and it is required to respond promptly for faults. When the device is in energizing process before the LED “HEALTHY” is on, the device need to be checked to ensure no abnormality. Therefore, the automatic supervision function, which checks the health of the protection system when startup and during normal operation, plays an important role.
  • Page 25 PRS-7910 Power After the device power supply 2 is powered on, the LED is lit. And the LED is turned off after Green supply 2 power failure. light The LED will be lit when the hardware, software, or configuration is abnormal. It is turned off...

  • Page 26: Management

    PRS-7910 5 Management 5.1 Real Time Data Interrogation This device can display the IO status, measurement & metering values, settings & parameters of the device itself and connected lEDs by the means of network interrogation. 5.1.1 IO Status Main Menu"-> "Database"->"Online"->"Status"...

  • Page 27: Soe Records

    PRS-7910 (separated by their different addresses and record groups) in non-volatile memory and follow the FIFO principle (First in First Out, when the available space is exhausted, the oldest record will be automatically overwritten by the latest one). 5.2.1 SOE Records ...

  • Page 28: Hardware

    PRS-7910 6 Hardware 6.1 Overview PRS-7910 communication unit comprises standard 2U half-level chassis. It adopts 32-bit dual-core high preference processor as its central unit for the communication management, database arrangement, advanced application, analysis and fault detection. The PRS-7910 consists of high-performance built-in processor, FLASH, SRAM, SDRAM, Ethernet controller and other peripherals.

  • Page 29: Pwr Module (Power Supply)

    PRS-7910 Figure 6.2.1 HMI view (Virtual LCD tool) 6.3 PWR Module (Power Supply) The PWR module is a DC/DC or AC/DC converter with electrical insulation between the input and output. It has an input voltage range as described in the chapter 2. The tolerance of the output voltage for the electronic components is continuously monitored.

  • Page 30: Interfaces

    PRS-7910 Pin No. Symbol Description Not used Grounded connection of device NOTICE! The standard rated voltage of PWR module is 85~265VDC. For other non-standard rated voltage, please specify when placing order and check if the rated voltage of power supply module is the same as the voltage of power source before the device being put into service.

  • Page 31: Digital Output Ports

    PRS-7910 IRIG-B Figure 6.4.2 Wiring of synchronization port  Serial Ports The device provides several extension serial ports. The correct serial port wiring is shown in the following figure. Generally, a foiled cable with at least two pairs of twisted pairs shall be applied.

  • Page 32: Optional Ports

    PRS-7910 6.6 Optional Ports The correct serial port wiring is shown in the following figure. Generally, a foiled cable with at least two pairs of twisted pairs shall be applied. One pair of the twisted pairs are respectively used to connect the transmission and reception terminals.

  • Page 33: Settings

    PRS-7910 7 Settings 7.1 Overview Setting configuration is an important function of device. The device normal operation depends in the correct setting configuration. Thus, only a qualified technician should be responsible for the configuration. Furthermore, if the device is operating abnormally, please check the setting configuration firstly.

  • Page 34: Password Settings

    PRS-7910 Item Range Description supervisor device in the network The identification of this Co-Dev ID 00 or 01 device in dual-device mode 7.4 Password Settings Access path: "Main Menu" -> "Settings" -> "ID Settings" Item Range Description The authority password...

  • Page 35: Configurable Function

    The PRS series communication device is the new generation of communication device produced by CYG SUNRI on the research of integrated automation system and the site operation experience over years. The PRS-COMM configuration and debugging tool works as the...

  • Page 36: Event Recording

    PRS-7910  Other systems The monitoring system of wind power station and photovoltaic power plant. 8.4 Event Recording 8.4.1 Overview The device can store the latest 1024 supervision events, 1024 IO events, 1024 device logs, 256 control logs and 256 regulation logs. All the records are stored in non-volatile memory, and when the available space is exhausted, the latest one will automatically overwrite the oldest record.

  • Page 37: Communication

    9 Communication 9.1 Overview This section outlines the remote communications interfaces of CYG SUNRI Relays. The protective device supports a choice of three protocols via the rear communication interface (RS-485 or Ethernet), selected via the model number by setting. The protocol provided by the protective device is indicated in the menu “Settings→Device Setup→Comm Settings”.
  • Page 38 PRS-7910 Master 120 Ohm 120 Ohm Slave Slave Slave Figure 9.2.1 EIA RS-485 bus connection arrangements 9.2.1.3 Bus Connections & Topologies The EIA RS-485 standard requires that each device is directly connected to the physical cable that is the communications bus. Stubs and tees are expressly forbidden, such as star topologies. Loop bus topologies are not part of the EIA RS-485 standard and are forbidden by it also.

  • Page 39: Ethernet Interface

    As the field voltage is much higher than that required, CYG SUNRI cannot assume responsibility for any damage that may occur to a device connected to the network as a result of incorrect application of this voltage.

  • Page 40: Iec60870-5-103 Communication

    PRS-7910 SCADA Ethernet Network: A Ethernet Network: B PRS-7961 Ethernet Switch PRS-791 Protocol Converter PRS-7741 PRS-753 Line Differential Relay BP-2C Busbar Relay Third-Party IEDs Figure 9.2.3 Ethernet communication structure 9.2.3 IEC60870-5-103 Communication The IEC specification IEC60870-5-103: Telecontrol Equipment and Systems, Part 5: Transmission Protocols Section 103 defines the use of standards IEC60870-5-1 to IEC60870-5-5 to perform communication with protective device.

  • Page 41: Physical Connection And Link Layer

    PRS-7910 The protective device conforms to compatibility level 3. The following IEC60870-5-103 facilities are supported by this interface: Initialization (reset)  Time synchronization  Event record extraction  General interrogation  General commands  Disturbance records  9.3.1 Physical Connection and Link Layer Two EIA RS-485 standardized ports are available for IEC60870-5-103 in this protective device.

  • Page 42: General Interrogation

    PRS-7910 Function type (FUN)  Information number (INF)  Messages sent to substation automation system are grouped according to IEC60870-5-103 protocol. Operating elements are sent by ASDU2 (time-tagged message with relative time), and status of binary signal and alarm element are sent by ASDU1 (time-tagged message). The cause of transmission (COT) of these responses is 1.

  • Page 43: Communication Profiles

    PRS-7910 IEC 61850-3: General requirements  IEC 61850-4: System and project management  IEC 61850-5: Communications and requirements for functions and device models  IEC 61850-6: Configuration description language for communication in electrical substations  related to IEDs IEC 61850-7-1: Basic communication structure for substation and feeder equipment–...

  • Page 44: Mms Communication Network Deployment

    PRS-7910 communication activity is controlled by the client. IEC61850 clients are often substation computers running HMI programs or SOE logging software. Servers are usually substation equipment such as protection relays, meters, RTUs, transformer, tap changers, or bay controllers. Peer-to-peer This is a non-connection-oriented, high speed type of communication usually between substation equipment, such as protection relays, intelligent terminal.
  • Page 45 PRS-7910 9.4.3.1 Dual-net Full Duplex Mode Sharing the Same RCB Instance Client Client Net A Net B Net A Net B Report Instance 1 Report Instance 1 RptEna = true RptEna = true Report Control Block Report Control Block IED (Server)
  • Page 46 PRS-7910 9.4.3.2 Dual-net Hot-standby Mode Sharing the Same RCB Instance Client Client Net A Net B Net A Net B Report Instance 1 Report Instance 1 RptEna = true RptEna = true Report Control Block Report Control Block IED (Server)

  • Page 47: Server Data Organization

    PRS-7910 9.4.3.3 Dual-net Full Duplex Mode with 2 Independent RCB Instances Client Client Net A Net B Net A Net B Report Instance 1 Report Instance 2 Report Instance 1 Report Instance 2 RptEna = true RptEna = true RptEna = true...
  • Page 48 9.4.4.3 Protection Logical Nodes The following list describes the protection elements for PRS-7910 series relays. The specified relay will contain a subset of protection elements from this list. The protection elements listed above contain start (pickup) and operate flags, instead of any element has its own start (pickup) flag separately, all the elements share a common start (pickup) flags “PTRC.ST.Str.general”.

  • Page 49: Server Features And Configuration

    PRS-7910 PRS-7000 series relays, besides the logical nodes we describe above, there are some other logical nodes below in the IEDs: 9.4.5 Server Features and Configuration 9.4.5.1 Buffered/unbuffered Reporting IEC61850 buffered and unbuffered reporting control blocks locate in LLN0, they can be configured to transmit information of protection trip information (in the Protection logical nodes), binary status values (in GGIO) and analog measured/calculated values (in MMXU, MMTR and MSQI).

  • Page 50: Acsi Conformance

    PRS-7910 9.4.5.4 Logical Node Name Prefixes IEC61850 specifies that each logical node can have a name with a total length of 11 characters. The name is composed of: A five or six-character name prefix.  A four-character standard name (for example, MMXU, GGIO, PIOC, etc.).
  • Page 51 PRS-7910 SCSM: IEC 61850-8-1 used SCSM: IEC 61850-9-1 used SCSM: IEC 61850-9-2 used SCSM: other Generic Substation Event Model (GSE) － Publisher side － Subscriber side Transmission Of Sampled Value Model (SVC) － Publisher side － Subscriber side Where: C1: Shall be "M" if support for LOGICAL-DEVICE model has been declared...
  • Page 52 PRS-7910 report-time-stamp M8-2 M8-3 reason-for-inclusion M8-4 data-set-name data-reference M8-5 M8-6 BufTm M8-7 IntgPd Logging Log control M9-1 IntgPd GOOSE GSSE Multicast SVC Unicast SVC Time File transfer Where: C2: Shall be "M" if support for LOGICAL-NODE model has been declared C3: Shall be "M"...
  • Page 53 PRS-7910 Logical node LogicalNodeDirectory GetAllDataValues Data GetDataValues SetDataValues GetDataDirectory GetDataDefinition Data set GetDataSetValues SetDataSetValues CreateDataSet DeleteDataSet GetDataSetDirectory Substitution SetDataValues Setting group control SelectActiveSG SelectEditSG SetSGValuess ConfirmEditSGValues GetSGValues GetSGCBValues Reporting Buffered report control block Report S24-1 data-change S24-2 qchg-change S24-3 data-update...

  • Page 54: Logical Nodes

    9.4.7 Logical Nodes 9.4.7.1 Logical Nodes Table The PRS-7910 series relays support IEC61850 logical nodes as indicated in the following table. Note that the actual instantiation of each logical node is determined by the product order code. 9.5 DNP3.0 Interface 9.5.1 Overview...

  • Page 55: Link Layer Functions

    PRS-7910 9.5.2 Link Layer Functions Please see the DNP3.0 protocol standard for the details about the linker layer functions. 9.5.3 Transport Functions Please see the DNP3.0 protocol standard for the details about the transport functions. 9.5.4 Application Layer Functions 9.5.4.1 Function Code Table 9.5.1 Function Code...
  • Page 56 PRS-7910 the user. The user can configure the user-defined communication table through the PRS IED Studio configuration tool auxiliary software. The object groups “Binary Input”, “Binary Output”, “Analog Input” and “Analog Output” can be configured according to the practical engineering demand.
  • Page 57 PRS-7910 9.5.4.7 Class Configuration If the DNP3.0 master calls the Class0 data, this relay will transmit all actual values of the “Analog Input”, “Binary Input” and “Analog Output”. The classes of the “Analog Input” and “Binary Input” can be defined by modifying relevant settings. In communication process, the DNP3.0 master can online modify the class of an “Analog Input”...

  • Page 58: Commissioning

    PRS-7910 10 Commissioning 1.1 General This relay is fully numerical in their design, implementing all protection and non-protection functions in software. The relay employs a high degree of self-checking and in the unlikely event of a failure, will give an alarm. As a result of this, the commissioning test does not need to be as extensive as with non-numeric electronic or electro-mechanical relays.

  • Page 59: Commission Tools

    PRS-7910 10.2 Commission Tools Minimum equipment required: • Multifunctional dynamic current and voltage injection test set with interval timer. • Multimeter with suitable AC current range and AC/DC voltage ranges of 0〜440V and 0〜 250V respectively. • Continuity tester (if not included in the multimeter).

  • Page 60: With The Relay De-Energized

    PRS-7910 measurements are within the stated tolerances. If the application-specific settings have been applied to the relay prior to commissioning, it is advisable to make a copy of the settings so as to allow them restoration later. This could be done by extracting the settings from the relay itself via printer or manually creating a setting record.
  • Page 61 PRS-7910 Carefully examine the protection panel, protection equipment inside and other parts inside to see that no physical damage has occurred since installation. The rated information of other auxiliary protections should be checked to ensure it is correct for the particular installation.

  • Page 62: With The Relay Energized

    PRS-7910 To unplug all the terminals sockets of this relay, and do the insulation resistance test for each circuit above with an electronic or brushless insulation tester. On completion of the insulation resistance tests, ensure all external wiring is correctly reconnected to the protection.
  • Page 63 PRS-7910 board, the time and date will be maintained. Therefore when the auxiliary supply is restored the time and date will be correct and not need to set again. To test this, remove the auxiliary supply from the relay for approximately 30s. After being re-energized, the time and date should be correct.
  • Page 64 PRS-7910 Item Practical Input Measurement (on LCD) Error 10.4.2.7 Test the AC Voltage Inputs This test verifies that the accuracy of voltage measurement is within the acceptable tolerances. Apply rated voltage to each voltage transformer input in turn; checking its magnitude using a multimeter/test set readout.

  • Page 65: On-Load Checks

    PRS-7910 Table 10.4.3 Binary inputs checkout BI Name State without energized State with energized Correct? 10.4.3 On-load Checks The objectives of the on-load checks are: • Confirm the external wiring to the current and voltage inputs is correct. • Measure the magnitude of on-load current and voltage (if applicable).

  • Page 66: Installation

    PRS-7910 11 Installation 11.1 General The equipment must be shipped, stored and installed with the greatest care. Choose the place of installation such that the communication interface and the controls on the front of the device are easily accessible. Air must circulate freely around the equipment. Observe all the requirements regarding place of installation and ambient conditions given in this instruction manual.

  • Page 67: Checking The Shipment

    Visually inspect all the material when unpacking it. When there is evidence of transport damage, lodge a claim immediately in writing with the last carrier and notify the nearest CYG SUNRI CO., LTD.Company or agent.

  • Page 68: Mechanical Installation

    PRS-7910 3. Air must be allowed to circulate freely around the equipment. The equipment can in principle be mounted in any attitude, but it is normally mounted vertically (visibility of markings). NOTICE! Excessively high temperature can appreciably reduce the operating life of this device.

  • Page 69: Electrical Installation And Wiring

    PRS-7910 11.7 Electrical Installation and Wiring 11.7.1 Grounding Guidelines In the case of equipment supplied in cubicles, place the cubicles on the foundations that have been prepared. Take care while doing so not to jam or otherwise damage any of the cables that have already been installed.

  • Page 70: Ground Connection On The Device

    PRS-7910 Figure 11.7.1 MD_SOPT settings 11.7.3 Ground Connection on the Device There is a ground terminal on the rear panel, and the ground braided copper strip can be connected with it. Take care that the grounding strip is always as short as possible. The main thing is that the device is only grounded at one point.

  • Page 71: Guidelines For Wiring

    PRS-7910 Figure 11.7.2 Ground strip and termination 11.7.5 Guidelines for Wiring There are several types of cables that are used in the connection of this relay: braided copper cable, serial communication cable etc. Recommendation of each cable:  Grounding: braided copper cable, 2.5mm2 ~ 6.0mm2 ...

  • Page 72: Maintenance

    12 Maintenance 12.1 Maintenance Schedule It is recommended that products supplied by CYG receive periodic monitoring after installation. In view of the critical nature of protective relays and their infrequent operation, it is desirable to confirm that they are operating correctly at regular intervals.
  • Page 73 PRS-7910 removed module. Furthermore, the replaced module should have the same software version. And the replaced analog input module and power supply module should have the same ratings. NOTICE! After replacing modules, be sure to check that the same configuration is set as before the replacement.

  • Page 74: Decommissioning And Disposal

    PRS-7910 13 Decommissioning and Disposal 13.1 Decommissioning 13.1.1 Switching off To switch off this relay, switch off the external miniature circuit breaker of the power supply. 13.1.2 Disconnecting cables Disconnect the cables in accordance with the rules and recommendations made by relational department.
  • Page 75 Update the mechanical specifications. 1.02 1.03 1.03 2016-8-16 Update the main CPU module picture. Update the setting list. Add hardware configuration table Add Signal transmission quantity parameter 1.05 1.05 1.05 2018-8-20 Motify model PRS-7910G to PRS-7910 1.05 1.05 1.05 2018-8-24 PRS-7910...

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