DO610 DO620 DO630 ABB Industrial module analog input module

DO610 DO620 DO630 ABB Industrial module analog input module

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contacts：HE

The voltage relay REU610 is a versatile multifunction protection relay mainly

designed for overvoltage and undervoltage protection and for supervision of

medium voltage distribution networks. The relay can also be used for protecting

generators, motors and transformers.

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

* Overvoltage protection with definite-time or IDMT characteristic, low-set stage

* Overvoltage protection with definite-time or IDMT characteristic, high-set stage

* Based on phase-to-phase voltage measurement or negative phase-sequence

(NPS) voltage

* Undervoltage protection with definite-time or IDMT characteristic, low-set stage

* Can also be used as alarm stage

* Undervoltage protection with definite-time or IDMT characteristic, high-set

stage

* Based on phase-to-phase voltage measurement or positive phase-sequence

(PPS) voltage

* Residual overvoltage protection with definite-time characteristic, low-set stage

* Residual overvoltage protection with definite-time characteristic, high-set stage

* Circuit-breaker failure protection

* Trip counters for circuit-breaker condition monitoring

* Trip-circuit supervision with possibility to route the warning signal to a signal

output

* Trip lockout function

* Four accurate voltage inputs

* User-selectable rated voltage 100/110/115/120 V

* User-selectable rated frequency 50/60 Hz

* Three normally open power output contacts

* Two change-over signal output contacts and three additional change-over signal

output contacts on the optional I/O module

* Output contact functions freely configurable for wanted operation