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
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