ABB Motor Protection Relay REM610 Product Features

Features

* Three-phase motor start monitoring based on thermal stress calculation with speed switch blocking function

* Three-phase overcurrent protection with timing characteristics and speed switch latching function

* Three-phase short circuit protection with instantaneous or timed characteristic

* Three-phase undercurrent (loss of load) protection with timed characteristic

* Non-directional earth fault protection with timing characteristics.

* Three-phase thermal overload protection

* Three-phase unbalance protection based on negative phase sequence currents with inverse definite minimum time characteristic

* Inverted phase protection based on negative phase sequence current

* Accumulated start-up time counter with restart inhibit function

* Circuit breaker fault protection

* Temperature protection stage with timing characteristics

* Emergency start function

* Optional RTD module

* With six measurement inputs

* Supports PTC thermistors and various RTD sensors

* Three additional galvanically isolated digital inputs

* Four precise current inputs

* Time synchronisation via digital inputs

* Trip circuit monitoring

* User selectable rated frequency 50/60 Hz

* Three normally open power output contacts

* Two change-over signal output contacts

* Output contact functions can be freely configured according to requirements

* Two galvanically isolated digital inputs, three additional galvanically isolated digital inputs on the optional RTD module

* Interference recorder:

* Recording time up to 80 seconds.

* Triggered by one or more internal or digital input signals

* Records four analogue channels and up to eight user-selectable digital channels

* Adjustable sampling rate

* Non-volatile memory for

* Up to 100 time-stamped event codes

* Set values

* Interference logger data

* Time-stamped logged data for the last five events

* Operating indication messages and LEDs showing status in case of power failure

* HMI with alphanumeric LCD and navigation buttons

* Eight programmable LEDs

* Multiple language support

* User-selectable password protection for the HMI

* Display of primary current value

* Demand value

* All settings can be modified via PC

* Optical front communication connection: wireless or cable

* Optional rear communication module with plastic fibre, combined fibre (plastic and glass) or RS-485 connection.

for system communication using SPA bus, IEC 60870-5-103 or Modbus (RTU and ASCII) communication protocols.

* Battery backup for real-time clock

* Battery charge monitoring

* Continuous self-monitoring of electronics and software

* Removable plug-in unit