Voltage and Frequency Protection and Control GRE130
The GRE130 is a fully numerical multi-function voltage protection device designed for various 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 a load shedding function with under-frequency and rate of change of frequency relays,and back-up protections for HV feeder,transformer and machines.
Voltage and frequency protection
Applicable to 1-phase input(single phase-to-phase voltage and single phase-to-neutral voltage),2-phase input(two phase-to-phase voltage and two phase-to-phase voltage with zero phase voltage)and 3-phase input(three phase-to-phase voltage,three phase-to-neutral voltage and three phase-to-neutral voltage with zero phase voltage)
Feeder manager device with CB control function,43R/L switch and comprehensive supporting functions
Compact and cost-effective design
Elementary,environmentally-friendly,easy to use and enhanced product concepts