REM610  Motor Protection Relay

Description

Overview

Essential details：REM610  Motor Protection Relay

The motor protection relay REM610 is a versatile multifunction protection relay mainly designed to protect motors 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.
3.2. 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 earth-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 inhibit function
* Circuit-breaker failure protection
* Temperature protection stages 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 power output contacts

REM610C55HCNN02

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