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CYG PRS-7367 - User Manual

CYG PRS-7367
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PRS-7367
Protection and Control Unit
Instruction Manual
CYG SUNRI CO., LTD.

Table of Contents

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CYG PRS-7367 Specifications

General IconGeneral
BrandCYG
ModelPRS-7367
CategoryControl Unit
LanguageEnglish

Summary

PRS-7367 Protection and Control Unit Instruction Manual

Preface

Users Guideline

Provides full information of the equipment, including function descriptions, logic diagrams, input/output signals, parameters, and technical parameters.

Personnel Security

Describes how to prevent and reduce safety accidents in electric power production and construction processes, ensuring personal safety and health.

Warning Indications

Defines the indicators and standard definitions used for warnings: DANGER!, WARNING!, CAUTION!, NOTICE!.

Documentation Outline

Briefly Introduction

Briefly introduces the application scope, selectable functions, and product features of the equipment.

Technical Specifications

Introduces technical specifications including electrical, mechanical, ambient, communication interface, and type tests.

Protection Functions

Provides a comprehensive and detailed description of all protection modules.

Supervision Functions

Introduces the automatic self-supervision function of the equipment.

Monitoring & Control

Introduces measurement, controlling, signaling, recording, and other functions of the relay.

Hardware

Introduces main module functions and defines all terminals of each module.

MAN MACHINE INTERFACE

Includes all the menus of the device.

Commissioning

Introduces how to commission the relay, check calibration, and test all functions.

Installation

Recommends unpacking, handling, inspection, and storage. Guides mechanical and electrical installation, including earthing.

Maintenance

Outlines general maintenance steps for the device.

Decommissioning and Disposal

Outlines general decommissioning and disposal steps for the relay.

Manual Version History

Lists instruction manual versions and their corresponding modification history records.

Briefly Introduction

Application Scope

Describes the relay's application in protecting and monitoring various primary apparatus like lines, cables, and transformers.

Product Function

Lists the functions included in the IEDs, referencing IEC 60617, ANSI, and CYG codes.

Product Features

Highlights key features like dual-core processor, modular design, 16-bit A/D converter, IEC61850 support, GOOSE functions, and GPS time synchronization.

Technical Specifications

Electrical Specifications

Details specifications for current transformer ratings, voltage transformer ratings, auxiliary power supply, and binary inputs/outputs.

Mechanical Specifications

Provides details on mounting, weight, dimensions, hole size, display language, housing material, housing color, terminal location, and protection class.

Ambient Temperature and Humidity Range

Specifies the operating and storage temperature ranges, and damp heat test conditions.

Communication Interfaces

Details parameters for Ethernet and Serial ports, including port numbers, transmission rates, standards, and protocols.

Type Tests

Covers environmental, mechanical, electrical, and electromagnetic compatibility tests according to IEC standards.

Terminals

Specifies connection types and wire sizes for CT/VT circuits and Binary I/O.

Measurement Range and Accuracy

Details the range and accuracy for metering items like phase, frequency, current, voltage, power, and power factor.

Protection Function Features

Describes accuracy specifications for various protection functions like overcurrent, residual overcurrent, and frequency protection.

Protection Functions

Overview

Introduces the PRS-7367 relay as a microprocessor-based device providing mature protection for various primary equipment.

Glossary

Lists categories, profession vocabulary, and abbreviations used in the manual.

System parameter

Details system parameters like CT/VT primary and secondary values, zero sequence CT/VT, and nominal power.

Non-directional overcurrent protection 50;51 P

Describes the one-stage instantaneous and multi-stage overcurrent protection with DT and IDMT characteristics.

Directional overcurrent protection 67 P

Details four-stage directional phase overcurrent protection with DT and IDMT characteristics.

Non-directional earth-fault protection 51 G

Describes four stages of non-directional earth-fault overcurrent protection with DT and IDMT characteristics.

Directional earth-fault protection 67 G

Details four stages of directional earth-fault overcurrent protection with DT and IDMT characteristics.

Switch onto fault SOTF

Provides one stage of switch onto fault function with definite time characteristic for fast tripping on energization.

Circuit breaker failure protection 50 BF

Offers circuit breaker failure protection with definite time characteristics for re-tripping or tripping logic.

Three-phase thermal overload protection 49 F

Incorporates one-stage current-based thermal calculation for motors, cables, or transformers.

Phase discontinuity protection 46 D

Provides one-stage phase discontinuity protection with definite time delay characteristics to detect unbalance current faults.

Negative sequence current protection 46 N

Offers one stage of negative sequence overcurrent protection with definite time delay characteristics for motors.

Three-phase overvoltage protection 59

Provides two-stage overvoltage protection with DT or IDMT characteristics for various voltage connections.

Positive sequence overvoltage protection 59 P

Offers one-stage positive sequence overvoltage protection with definite time delay characteristics.

Residual overvoltage protection 59 G

Provides zero sequence overvoltage protection with definite time delay characteristics for earth-fault protection.

Negative sequence overvoltage protection 59 N

Offers one-stage negative sequence overvoltage protection with definite time delay characteristics.

Under Voltage Load Shedding Protection 27

Provides three-phase under voltage protection to disconnect devices like electric motors damaged by low voltage.

Positive sequence under voltage protection 27 P

Offers one-stage positive sequence under voltage protection with definite time delay characteristics.

Under voltage protection CUB_27

Used to disconnect capacitors from the system when voltage is less than the setting value.

Over frequency protection 81 O

Provides two-stage over frequency protection with independent definite time delay characteristics.

Under frequency protection 81 URS

Offers five-stage under frequency protection with independent definite time delay characteristics.

Under frequency restore protection 81 URE

Provides one-stage under frequency restore protection with independent definite time delay characteristics.

Frequency gradient protection 81 R

Offers one-stage frequency gradient protection with independent definite time delay characteristics.

Automatic Reclose 79 AR

Manages automatic reclosing to restore faulted transmission systems, improving stability and reliability.

Synchronism check 25 SYN

Ensures the grid can be merged correctly by checking voltage, frequency, and phase angle differences.

Current unbalance protection 51 NA

Protects shunt capacitor banks from internal faults by detecting measured unbalance current.

Three phase current unbalance protection 51 NT

Protects Y-connected capacitor banks from internal faults by detecting measured unbalance current.

Voltage unbalance protection 59 NA

Monitors voltage unbalance conditions in power transmission and distribution networks.

Three phase voltage unbalance protection 59 NT

Protects Y-connected capacitor banks from internal faults by detecting measured unbalance voltage.

Fault locator 21 FL

Provides fast, selective, and reliable fault location on protected line sections.

Reverse power protection 32 R

Offers two-stage power protection with definite time delay characteristics for generators and feeders.

Power protection 32

Provides power protection with definite time delay characteristics for over, under, and reverse power.

Voltage Selection

Selects one voltage between two bus or line voltages based on system configuration.

Mechanical Protection MP

Provides one-stage mechanical protection with definite time delay characteristics based on mechanical inputs.

General function block

Details IDMT curves for over quantity protection, including curve types and parameters.

Backup power automatic switch

Manages automatic switching for single-busbar stages in substations and load sides.

Trip logic 94 T

Provides trip logic for tripping BO, with options for steady type, lockout type, and pulsed type.

Close Logic

Provides trip logic for tripping BO, with steady type and lockout type options.

Three phase inrush function OCR_INR

Detects three-phase inrush for current protection by analyzing the second harmonic component.

Wattmetric sensitive earth-fault protection SEF

Measures earth-fault power and provides operating signal based on residual current, voltage, and angle.

Under Current Protection 37 C

Provides one-stage under current protection for monitoring motors or capacitors.

Block Busbar Protection

Provides blocking protection for busbars not specially configured with main protection, also for transformer backup protection.

Gap Over-current & Zero-sequence Over-voltage Protection

Offers two-stage protection for transformer backup in ungrounded systems.

Restricted Earth Fault Protection 64 REF

Monitors power transformer internal faults, particularly winding faults, using differential and restrained current.

Transformer Current circuit supervision TF CTS

Monitors secondary circuits of current transformers to detect faults and avoid influencing protection functions.

Transformer Fuse failure supervision TF VTS

Continuously supervises the protected electrical network using instrument transformers (VT) to ensure accurate operation.

Faulty Phase Selection (FPS)

Discriminates faulty phase for all fault types and outputs tripping commands.

Stabilized differential protection for machines 87 MPDIF

Provides stable differential protection as main protection for machines against phase-to-phase short circuits.

Flux-balance based differential protection 87 MFDIF

Used as main protection for machines in case of phase-to-phase short circuits.

Machine Startup MST

Determines motor starting components via circuit breaker position, voltage, or current.

Long start protection MQDS

Monitors motor starting process, protecting against long start times that could overheat the rotor.

The locked-rotor protection MDZS

Provides protection against locked rotor conditions during normal motor operation.

Synchronous Motor Loss of Step 78 O

Detects loss of step in synchronous motors using power factor angle and static stable impedance criteria.

Synchronous Motor Loss of Excitation 40 O

Detects loss of excitation in synchronous motors using asynchronous boundary impedance circle principle.

Supervision Functions

Overview

Explains the importance of automatic supervision for ensuring the protection system's health and reliability.

Supervision Alarm and Block

Details the relay's real-time self-check capability for hardware, software, and external communication.

Current circuit supervision CTS

Detects faults in secondary circuits of current transformers to avoid influencing protection functions.

Fuse failure supervision PTS

Detects AC voltage input circuit failures and adjusts protective elements for stability.

Monitoring & Control

Overview

Covers auxiliary functions like sampling, remote control, BI signaling, event, and fault recording.

Control SYN

Supports synchro check function for local or remote control operations in three check modes.

Measurement

Details general measurement quantities, including directly sampled and calculated values, used for analysis and metering.

Binary Input

Describes function of collecting BI signals, handling status changes with debouncing technique.

Binary Output

Performs control output functions for primary equipment like CB/DS/ES switching.

Interlocking Logic Output

Provides schemes for operating system apparatus, blocking switching control operations.

Apparatus Control

Supervises and controls circuit breakers, switches, and earthing switches within a bay.

Signaling

Covers configurable binary inputs for equipment status, protection logic, and health monitoring.

Event Records

Allows establishing the sequence of events leading to a situation for analysis.

Fault and Disturbance Recording

Records sampled values of faults and disturbances, including waveforms, for analysis.

Hardware

Overview

Describes the modular design for easy checking, locating faults, and replacing modules.

Human Machine Interface Module

Contains an LCD screen for modifying settings, displaying information, and navigating menus.

Power Supply Module

Features a voltage converter with electrical insulation and wide input range, providing binary outputs for commands.

Main CPU Module

The core module with processors executing protection, control, and communication functions.

Transformer Module

Decreases high input analog values to low output analog values for protection and metering.

Binary Input Module

Provides 18 optical isolated input terminals for monitoring functions like breaker positions.

Binary Output Module

Consists of 16 dry contacts for signal functions, operating conditions, or commands.

Binary Input;Output Module

Offers 14 binary outputs and 8 binary inputs for monitoring breaker and switch positions.

MAN MACHINE INTERFACE

Overview

Describes the HMI as the main communication interface, featuring an LCD, menus, and keys for configuration.

LCD Display description of HMI

Details the LCD display structure, divided into main data, outer boundary, date/time, time sync, and data monitoring zones.

Sub menu functions of main menu

Describes detailed menu sub-functions displayed on the HMI LCD, including Physical Information, Review, Monitor, etc.

Test Information

Covers testing accuracy of relay functions like tripping, signal, operation, and communication tests.

Clear Information

Allows clearing record history for Alarm, LED, Act, and other records via menus.

Language Information

Enables setting the IED language to Chinese, English, Hindi, German, or Russian.

Configurable Function

General Description

Explains configuration parameters and flexible functions like system, logic, and I/O configuration.

PRS IED Studio Software

Describes the software for device configuration, monitoring, and comparison in online/offline modes.

Setting Group Selection

Allows selecting setting groups using binary inputs, with procedures for changing and copying groups.

Prot Settings

Allows changing public, measurement, and protection operation function settings.

Configuration Information

Enables setting device date, time, time zone, and managing user authorization.

Communication Protocol

Overview

Introduces data communication and hardware of IEDs, supporting various protocols like RS-485 and Ethernet.

Rear Communication Interface

Details parameters for three rear Ethernet interfaces (optional) and their standardized communication cables.

Network Topology

Describes supported network topologies: Star, PRP, and RSTP.

IEC61850 Protocol

Explains the IEC 61850 standard for standardized communication systems, including its series of standards.

DNP3.0 Protocol

Specifies supported objects, variations, and qualifiers for DNP3.0 communication.

Commissioning

General

Provides a brief description of function verification, including methods and tools.

Safety Instructions

Contains safety information with warning signs to avoid personal injury or equipment damage.

Commission Tools

Lists required instrumentation, meters, and tools for commissioning, including testing devices and software.

Commission Preparation

Covers basic knowledge, operation preparation, and product checks before commissioning.

With the Relay Energized

Details checks to perform after the device is powered on, including LCD, LEDs, date/time, and AC circuits.

Installation

General

Provides guidance for design, installation, commissioning, and maintenance staff.

Safety Instructions

Includes warnings for module insertion/removal and precautions against electrostatic discharge.

Checking the Shipment

Details procedures for unpacking and inspecting the equipment for completeness and damage.

Material and Tools Required

Lists necessary mounting kits, drills, spanners, and other tools for installation.

Device Location and Ambient Conditions

Specifies requirements for installation site, avoiding adverse conditions like wetness and dust.

Mechanical Installation

Guides on placing cubicles, securing them, and connecting grounding wires.

Electrical Installation and Wiring

Covers TA circuit connection, power supply wiring, and signal wiring requirements.

Grounding

Specifies using yellow-green multi-core cable for connecting to grounded copper bars.

Shielded cable connection

Details connecting shielded cables to ground and following application methods.

Install the optical cable

Provides instructions for handling optical cables, including minimum curvature radius.

Install the communication cable

Recommends using shielded twisted pair cables for reliable communication, considering noise.

Installation check

Checks terminal screws, wiring neatness, and clarity of wiring labels.

Confirm the hardware and software version

Verifies hardware and software versions via device label or LCD interface.

Device start

Describes the process of powering on the device, reading configuration files, and checking indicators.

Maintenance

Maintenance General

Outlines strict laboratory tests and periodic tests to ensure relay functionality and wiring integrity.

Regular Testing

Describes testing procedures to find potential defects and ensure healthy operation, with recommended cycles.

Failure Maintenance

Refers to maintenance for faulty relay devices, including hardware and software failures.

Replace Failed Modules

Guides on replacing failed modules, emphasizing identical part names, software versions, and ratings.

Decommissioning and Disposal

Decommissioning

Provides steps for switching off the relay, disconnecting cables, and dismantling the rack.

Disposal

Advises on proper disposal of electronic waste according to local and national regulations.

Manual Version History