GMS7002 – Synchronous Motor Protection
Products family : Motor Protection
Sector : Industry
The optimum operation of an electrical network depends particularly on the reliability and the availability of the protection, measuring and automation devices, and the way these devices can communicate their information.
GMSx 7002 relays are designed to protect synchronous machines connected to three phase 50 Hz or 60 Hz electrical networks: protection of synchronous motors driving centrifugal or reciprocating compressors, crushers, or any other type of mechanism.
The two models GMS and GMSH differ by the detection method used for earth fault as well as the primary value used, zero sequence (earth fault) voltage or zero sequence (earth fault) current.
ANSI codes
24 – Overfluxing
27 – Undervoltage
32P – Maximum of active power
46 – Reversal, loss of phase or unbalance phase
49 – Thermal overload
50 – Instantaneous overcurrent
51LR – Locked rotor
55 – Management of the network power factor
59 – Overvoltage
59G – Neutral displacement over voltage
64 – Sensitive earth fault
81 – Over and/or under frequency