Protection & Control Relay

Toshiba GRE-Series Protection & Control Relays

GRE110
Over-current and earth fault protection and control for MV feeders. Three-phase current and optional SEF inputs.

GRE120
Motor protection and control. Three-phase current and optional SEF inputs.

GRE130
Voltage and frequency protection and control. Three-phase voltage inputs.

GRE140
Directional overcurrent and earth fault protection and control for MV feeders. Three-phase current and three-phase voltage input with optional SEF inputs.

GRE160
Transformer protection and control for two-winding transformers. Current differential input and optional residual current input for restricted earth fault detection. Optional voltage input.

GRE170
Machine protection and control for small and medium size generators and motors. Optional current differential function, sensitive earth fault input, voltage input.

  • Multiple protection relay elements

  • Local/remote CB control

  • Automatic supervision and recording functions

  • Combined 1A/5A CT rating

  • Wide range of auxiliary input supply voltage

  • DC/AC auxiliary supply

  • Configurable binary inputs and outputs

  • Configurable LEDs (assignable function and color)

  • Trip circuit supervision using two binary inputs for high integrity

  • USB port for local PC connection

  • Remote communication  (Modbus RTU, IEC 60870-5-103 or IEC 61850)