ABB Relion® 630 series Feeder Motor protection and control REM630

Motor protection and control REM630

REM630 has been designed to protect medium-sized and large asynchronous

and synchronous motors in the manufacturing and process industry.

Application

REM630 has been designed to be the main

protection for both asynchronous and

synchronous motors and their drives, offering

full protection during motor start-up and normal

drive operation. The comprehensive motor

management relay is typically used with circuit

breaker and contactor-controlled, medium-sized

and large motors with varying load in drives such

as pumps, fans, compressors, mills and crushers.

REM630 offers two predefined configurations,  of which one is intended for medium-voltage

asynchronous motor applications and the other

for asynchronous and synchronous motor

applications requiring differential protection.

An optional RTD/mA module offers eight

analog RTD or mA measuring inputs and four

mA outputs. The RTD and mA inputs can be

used for temperature measurement of motor

bearings and stator windings, thus extending

the functionality of the thermal overload

protection and preventing premature aging

of the motor windings. They can also be used

for measuring the ambient air or coolant

temperature. The four mA outputs can be used

for transferring freely selectable measured

or calculated analog values to devices provided

with mA inputs.

Product highlights

• Motor protection both during motor start-up

and normal run, with protection and fault

clearance also in abnormal situations

• Extensive motor protection for medium-sized

and large asynchronous and synchronous

motors requiring differential protection

• Extensive motor supervision capabilities via

RTD and mA measurements