High Voltage Relays
GR-200 Series
Distance Protection IED GRZ200
The GRZ200 distance protection IED has been designed to provide distance protection and control functions for application to transmission lines and distribution feeders at all voltage levels. The device can be applied to the protection of both long and short lines, parallel lines and underground cables, and can also be used to provide backup protection for generators, transformers and reactors. Optional bay control and monitoring functions are also provided within the flexible and user-friendly GR-200 Series platform.
Line Differential Protection IED GRL200
The GRL200 line protection IED provides both line differential and distance protection functions in a single, powerful package. The high-speed, phase-segregated line differential protection is applicable to both overhead lines and underground cables with up to three terminals, communicating either over direct fiber optic links or via telecommunications multiplexer interfaces. Zero-phase sequence differential protection enables sensitive detection for high-resistance faults. Optional bay control and monitoring functions are also provided within the flexible and user-friendly GR-200 Series platform.
Transformer Protection IED GRT200
The GRT200 transformer protection IED has been designed to provide complete protection for two-winding or three-winding power transformers, auto-transformers and generator-transformers, within the flexible and user-friendly GR-200 Series platform. Up to five current inputs can be provided for the phase-segregated differential protection. The main transformer differential protection is supported by restricted earth fault, backup overcurrent, thermal overload, over-excitation and frequency protections.
Busbar Protection IED GRB200
The GRB200 low impedance differential relay for busbar protection is designed to provide very reliable, high-speed and selective protection for various types of busbar system. The GRB200 can be applied for single, double and ring busbars with or without transfer busbar, one-and-a-half CB (busbar) system and four bus-coupler busbars. A phase-segregated current differential scheme is employed, which can correctly distinguish between internal and external faults even in the event of CT saturation. GRB200 has two models, for centralized and de-centralized configurations.
Multi Function Protection IED GRD200
The GRD200 multi-function IED has been designed to provide a comprehensive protection and control solution for distribution feeders, while also being applicable as a back-up protection for transmission lines, power transformers and other electrical plant. Its multiple, high-accuracy overcurrent protection elements can be independently subject to directional control, while a range of other protection functions can also be selected for thermal overload, under/overvoltage, under/over frequency, circuit breaker failure and voltage controlled overcurrent applications. Optional bay control and monitoring functions are also provided within the flexible and user-friendly GR-200 Series platform.
Bay Control IED GBU200
The GBU200 bay control IED has been designed to provide bay control and protection functions for application to transmission lines and distribution feeders in all types of network. The GBU200 provides functions for the control and monitoring of switchgear, transformer and other equipment in EHV, HV, MV and LV substations. It can also support feeder protection functions such as directional overcurrent and earth fault protections within the flexible and user-friendly GR-200 Series platform.
GR-200 Compact Series
Multi-function Protection and Control IED GRE200
GRE200 is multi-function protection and control IED implemented on Toshiba's next generation GR-200 series IED platform. GRE200 is designed to provide comprehensive protection and control applications for transmission lines and distribution feeders across all types of network. This powerful and user-friendly IED will provide you with the flexibility to meet your application and engineering requirements in addition to offering excellent performance, outstanding quality and operational peace of mind.
Medium Voltage Relays
GRE-Series
Overcurrent and Earth Fault Protection and Control GRE110
The GRE110 is a numerical multi-function protection device designed for feeder protection applications in MV networks,drawing on proven technologies developed over more than 100 years,and providing a comprehensive range of protection and control functions. This compact and cost-effective device can be applied not only as feeder protection but also as motor protection and back-up protection for generators and transformers.
Directional Overcurrent and Earth Fault Protection and Control GRE140
The GRE140 is a fully numerical multi-function directional overcurrent protection device designed for feeder protection applications in MV networks,drawing on proven technologies developed over more than 100 years,and providing a comprehensive range of protection and control functions. This compact and cost-effective device can be applied not only as feeder protection but also as back-up protections for HV/EHV equipment and feeder.
Transformer Protection
GRE160
The GRE160 is a fully numerical multi-function transformer protection device designed for two-winding transformer protection applications, drawing on proven technologies developed over more than 100 years, and providing a comprehensive range of protection and control functions.