The object of devices in the RMS 7992 series is to provide protection of three-phase electrical networks against any form of short-circuit between phases or between phase and earth.
They are modular in design and can be totally integrated into the PROCOM structure, or just as easily they may be used entirely independently in any other classical protection scheme.

Relays in the RMS 7992 series:

• RMS 7992: phase and earth overcurrent
• RMST 7992: phase and earth overcurrent + thermal image

PROTECTION   FUNCTIONS

• Phase instantaneous [50] and delayed [51] overcurrent
• Earth instantaneous [50N] and delayed [51N] overcurrent
• Thermal image [49] (only RMST 7992)

MAIN   FEATURES

• 3 programmable output units with 2 contacts each
• Multi curve
• Watchdog unit
• Measurements of Phase and earth currents including harmonics up to 7th
• Thermal image measurement (only RMST 7992)
• Settings via local HMI
• Modbus communications with Current Loop interface