ABB REM610C55HCMN03 Relay Protection Device

ABB REM610C55HCMN03 Relay Protection Device
I. Basic Product Information
Full model number: REM610C55HCMN03
Brand: ABB (Relion® 610 Series)
Device type: Multi-functional motor intelligent protection, measurement, local control, fault recording, and communication upload IED relay protection device (specifically for auxiliary protection of auxiliary equipment in power plant excitation systems)
Product positioning: Integrates protection, measurement, local control, fault recording, and communication upload functions. It is mainly used for comprehensive protection of large-power asynchronous motors such as cooling fans, oil pumps, and circulating water pumps in the excitation system of power generation units. It can also be used for protection of factory power feeders and small distribution transformers.

REM610 is an electric motor protection device used in the manufacturing and processing industries to protect, measure and monitor large and medium-sized asynchronous low-voltage motors and small and medium-sized asynchronous high-voltage motors.
REM601 is a member of the 610 product series of ABB’s Relion® product family. This product series includes feeder, motor protection devices and conventional system voltage monitoring protection devices. The plug-in design facilitates the commissioning of the switchgear and also makes the insertion and removal of the device’s plug-in components faster and safer.
In many applications, the protection device can be used in combination with circuit breakers and contactor-controlled motor drives. By using an expansion card with RTD sensors or thermistors, the functionality of the device is enhanced, and the temperature of key components of the motor (such as bearings and windings) can be directly measured. Thanks to the priority of thermal overload protection over phase overcurrent protection, ground fault protection and phase imbalance protection, this device can also be used to protect cable feeders and distribution transformers.

Typical application scenarios of the generator set excitation system
Cooling axial flow fan of the excitation cabinet, high-power cooling fan protection control
Comprehensive protection of the excitation system’s lubricating oil pump, top shaft oil pump, and circulating water pump motors
Outline protection of the low-voltage feeder of the power plant’s auxiliary power supply, overload protection of the excitation system’s self-used small distribution transformer
Safety interlock trip circuits for auxiliary machine motors of self-owned power plants and gas turbine units