Product Overview; Use Of The Relay; Features - ABB REM 610 Operator's Manual

1MRS755538
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3.1.
3.2.
Motor Protection Relay
Operator's Manual - ANSI version

Product overview

Use of the relay

The motor protection relay REM 610 is a versatile multifunction protection relay
mainly designed to protectmotors in a wide range of motor applications.
The relay is based on a microprocessor environment. A self-supervision system
continuously monitors the operation of the relay.
The HMI includes a liquid crystal display (LCD) which makes the local use of the
relay safe and easy.
Local control of the relay via serial communication can be carried out with a
computer connected to the front communication port. Remote control can be carried
out via the rear connector connected to the control and monitoring system through
the serial communication bus.

Features

Three-phase motor start-up supervision based on thermal stress calculation with
*
speed switch blocking ability
Three-phase overcurrent protection with definite-time characteristic and speed
*
switch blocking ability
Three-phase short-circuit protection with instantaneous or definite-time
*
characteristic
Three-phase undercurrent (loss of load) protection with definite-time
*
characteristi
Non-directional ground-fault protection with definite-time characteristic.
*
Three-phase thermal overload protection
*
Three-phase unbalance protection based on the negative-phase-sequence current
*
with inverse definite minimum time characteristic
Phase reversal protection based on the negative-phase-sequence current
*
Cumulative start-up time counter with restart disable function
*
Circuit-breaker failure protection
*
Temperature protection elements with definite-time characteristic
*
Emergency start function
*
Optional RTD module
*
with six measuring inputs
*
supports PTC thermistors and various RTD sensors
*
three additional galvanically isolated digital inputs
*
Four accurate current inputs
*
Time synchronization via a digital input
*
Trip-circuit supervision
*
User-selectable rated frequency 50/60 Hz
*
Three normally open trip contacts
*
REM 610 REM 610
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