Protection relay to prevent large-scale blackouts
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.
Protection & Control Systems for Stable Power Networks
Toshiba has over 100 years of experience in the development and manufacturing of protection and control systems, our highly reliable products contributing to the stable supply of power all over the world. Today, Toshiba provides complete solutions for protection, control and automation of power networks at all transmission and distribution voltage levels. Our innovative designs provide cost-effective and user-friendly products, while our high-quality manufacturing facilities guarantee years of reliable and maintenance-free service.
The GR-200 Series is a state-of-the art protection and control IED platform, combining high quality relay design with the latest in digital substation technology. This flexible and powerful platform will satisfy all of your protection and control requirements, while its user-friendly software tool, GR-TIEMS, ensures a smooth engineering process.
GR-200 Series Products and Software
Digital substation brings digital technology into the heart of the substation. The digital substation focuses on digitalization of both station level and process level by converting analog measurement data and binary status information into digital data.
Digitalization provides a secure and reliable method of data transmission, as well as significantly reduced investment and operating cost.
GR-200 Compact Series
The GR-200 Compact Series is a state-of-the art multi-function protection and control IED designed for wide range of applications from MV through HV/EHV Network. It features comprehensive range of protection and control functions, multiple communication protocol, and come with compact size and effective cost.
This new range of line-up is implemented on Toshiba's next generation GR-200 series IED platform. This flexible, powerful yet proven platform will satisfy all of your protection and control requirement, while its user-friendly software tool, GR-TIEMS, ensures a smooth engineering process.
GR-200 Compact Series Products
Services & Solutions
Toshiba is committed to provide reliable and innovative service solutions for our customers. Our full range of grid protection and automation services is perfectly designed to your specific needs.Learn more about our services & solutions
The GRE-Series multi-function protection relays have been designed specifically for application in MV networks. These compact, cost-effective devices provide a comprehensive range of protection and control functions, supported by the easy-to-use RSM100 software package.
GRE-Series Products and Software
Substation Automation & Control
For more than 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.
GSC1000 Substation Automation System
Trip Circuit Supervision Relay GKAD1
GKAD1 is used for monitoring of the circuit breaker tripping circuit. The GKAD1 issues an alarm if it detects trip circuit supply failure or circuit breaker tripping mechanism failure. It provides supervision of the breaker in both the open and closed conditions, and is available in single-phase or three-phase configurations.
The GR-100 Series has provided reliable protection on our customers' networks for more than 20 years.
GR-100 Series Products and Software
End of production
|Type||End of production||Name||Next Generation Products|
|GRD200 or GRE130|
|GRC100||Breaker Failure Protection||GRD200 or GRE110|
|GRD150||Feeder Manager||GRD200 or GBU200|
|G1PR2||Protocol Converter for GR-100 series||-|
(IEC 61850/ IEC 60870-5-103)
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.
|1907||Plunger type OC relay|
|1917||Induction disk type Directional relay|
|1920||Induction cup type OC relay|
|1950||Development of Distance Relay|
|1980||World's first Numerical Line Differential Protection Relay|
|1986||First Substation Automation System|
|1998||GR-100 series relays for global market|
|2010||GRE-series relays for MV market|
|2012||GR-200 series relays with further improved protection and control functions|
|2021||GR-200 Compact series relays with multi-function protection & control features|