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Top Page > Transmission & Distribution > Product/Technical Services > Protection relay to prevent large-scale blackouts

Protection relay to prevent large-scale blackouts

  • Protection relay to prevent large-scale blackouts Protection relay to prevent large-scale blackouts
    Protection relay to prevent large-scale blackouts
  • Protection control system essential for prevention of large-scale blackouts and production and recovery of system
    Protection control system essential for prevention of large-scale blackouts and production and recovery of system
  • Automatically detects wide-area blackouts due to lightning etc. instantaneously
    Automatically detects wide-area blackouts due to lightning etc. instantaneously
  • Finds faults in a minimum section and addresses them
    Finds faults in a minimum section and addresses them
  • Toshiba will continue to provide technologies that make "power is available" a matter of course
    Toshiba will continue to provide technologies that make "power is available" a matter of course

We provide protection control systems to prevent large-scale blackouts. In these systems, protection relays to instantaneously detect abnormalities in power systems or equipment (system faults) and send out commands to cut off the faulty section are used to prevent the fault from spreading or to minimize the impact.
In recent years, we have developed highly-functional, high-performance and highly-reliable digital protection relays taking advantage of advancement in micro processors, contributing to the stable and safe supply of electricity.

Heritage and pride for over 100 years that have underpinned the stable supply of electricity

For over 100 years since starting development of analog protection relays, Toshiba has promoted advancement and functionality improvement of protection relays, represented by primary/backup transmission line protection relays.

Toshiba's protection relay development
1907 Developed the first electromechanical relay in Japan
1970s Developed analog static relays
1980 Developed D1 relays in which a single-core CPU is used. Implemented digital relays first in the world
1985 Developed D2 relays in which a multi-core CPU is used. Digitized all protection methods
1998 Developed G1 (GR-100 series) relays for global market
2010 Developed GRE-series relays for MV market
2012 Developed G2 (GR-200 series) relays with further improved protection and control functions

Highly-reliable small lightweight single-function relays

Overview

Toshiba provides complete solutions for protection, control and automation of power networks at all transmission and distribution voltage levels. Our innovative designs and state-of-the-art technology give you cost-effective and user-friendly products, while our high-quality manufacturing facilities guarantee years of reliable and maintenance-free service.

GR-200 Series

The GR-200 Series is the next generation of Toshiba protection and control IEDs. Flexible adaptation is enabled using extensive hardware and module software combinations enabling an application oriented implementation based upon independent function blocks.

GR-200 Series GR-200 Series

Intelligent platform for future grid applications

  1. Protection & control for transmission & distribution networks

  2. Platform for distributed and renewable energy systems

  3. Basis for future systems and application development

Extensive hardware options and flexible adaptation

  1. Comprehensive range of hardware components

  2. Wide variety of binary input and output combinations

  3. Standard LCD and touch type screens together with mimic option

  4. Plug-in communication module

  5. Flexible hardware combinations to meet specific applications

Function-wise implementation

  1. Library of function blocks enables wide application for protection, control, measurement and other functions

  2. Protection elements and schemes

  3. Control schemes

  4. Metering and recording functions

  5. Easy IE customization to add/delete particular function blocks

  6. Flexible implementation of new functions or to modify a specific function

GR-100 Series

GR-100 Series provide high performance and low cost through advanced technologies

High Performance

  1. High speed operation

  2. Excellent selectivity and transient stability

  3. Fully numerical design

GR-100 Series GR-100 Series

High reliability

  1. Low failure rate due to stringent quality control

  2. Automatic supervision of hardware and software

  3. Optional fault detector for enhanced security

Low cost

  1. Integration of multiple functions in a single package

  2. Low power consumption and compact size reduce substation costs

Metering & recording

  1. Real-time metering of power system quantities

  2. Time-tagged storage of events and fault records

  3. High quality disturbance records and accurate fault location

User-friendly Human Machine Interface (HMI)

  1. Menu-based setting with LCD

  2. Remote Setting and Monitoring (RSM) Software for access from a PC

  3. Fully numerical design

Multiple communication interfaces

  1. Local communication by front-mounted RS232 port

  2. Remote communication by rear mounted RS485, Fibre-optic or Ethernet ports

  3. Supports IEC 60870-5-103 protocol

GRE Series

The GRE-Series multi-function protection devices have been launched for application in MV networks,drawing on the proven technologies of Toshiba protection and control devices,developed over more than 100 years. This compact,cost-effective device provides a comprehensive range of protection and control functions.

GRE Series GRE Series

Features

  1. Protecting feeders and motors in medium voltage networks

  2. Backup protection for generators,transformers and feeders in high voltage networks

  3. Feeder manager device with CB control function,43R/L switch and comprehensive supporting functions

  4. Compact and cost-effective design

  5. Elementary,environmentally-friendly,easy to use and enhanced product concepts

Functions

  1. Multiple protection relay elements

  2. Local/remote CB control

  3. Automatic supervision and recording functions

  4. Combined 1A/5A CT rating

  5. Wide range auxiliary supply voltage range

  6. DC/AC auxiliary supply

  7. Configurable binary inputs and outputs

  8. Configurable LEDs(function and color)

  9. Trip circuit supervision using two binary inputs for high integrity

  10. USB port for local PC connection

  11. Remote communication
    (Modbus RTU,DNP3.0,IEC60870-5-103 or IEC61850(option))

Substation Automation & Control

For nearly 30 years, Toshiba has been supplying numerical control systems for HV and EHV substations. To take advantage of our knowledge and experience in this field, choose the reliability, flexibility and economy of the GSC1000 system.

Substation Automation & Control Substation Automation & Control

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