Abb`s the motor protection relay rem 610 is part of the re_ 610 series of numerical relays is applicable for the protection and supervision of utility substations, and industrial switchgear and equipment. The motor protection relay rem 610 is primary targeted at protecting large asynchronous low-voltage motors and small and medium-sized high-voltage asynchronous motors. Rem 610 handles electrical fault conditions during motor start up, normal operation, idling, and cooling down at standstill, e.G. In pump, fan, mill or crusher applications. The relay can be used with both circuit-breaker controlled and contactor-controlled drives. Rem 610 can also be used for the protection of cables feeders and distribution transformers that require thermal overload protection besides over current, earth-fault and phase unbalance protection. Salient features are as follows:
1 the device comes with many integrated protection functions for the protection of motors.
2 the thermal overload protection, cumulative motor start up supervision, running stall protection, earth-fault protection and loss-of-phase are the key functions of this relay.
3 the coverage of the thermal overload protection can be further enhanced by means of an optional rtd module for direct temperature measurement.
