ABB REF 610 Protection Relay

ABB REF 610 Protection Relay

INTRODUCTION

REF 610 is a versatile multifunction protection relay mainly designed for protection of  incoming and outgoing feeders in MV distribution substations. REF 610 can also be used  as back-up protection for motors, transformers and generators, in industrial as well as in  utility applications.The large number of integrated protection  functions, including three-element overcurrent protection, two-element, non-directional  ground-fault protection as well as thermal  protection, makes REF 610 a complete protection against overcurrent and ground faults.

FEATURES

ï Three-phase non-directional overcurrent  protection with definite-time or IDMT  (mode) characteristic, low-set element 

ï Three-phase non-directional overcurrent  protection with definite-time or instantaneous characteristic, high-set element 

ï Three-phase non-directional overcurrent  protection with definite-time or instantaneous characteristic, instantaneous element 

ï Non-directional ground fault protection with  definite-time, IDMT (mode) or instantaneous characteristic, low-set element 

ï Non-directional ground-fault protection with  definite-time or instantaneous characteristic, high-set element 

ï Three-phase thermal overload protection  for cables 

ï Arc protection - two lens sensors for arc detection  (optional) - automatic reference level adjustment  based on backlight intensity 

- arc detection via a remote light signal 

ï Automatic reclosing 1...3 shots 

ï Circuit-breaker failure protection 

ï Trip counters for circuit-breaker condition  monitoring 

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

ï Trip lockout function 

ï Four accurate current inputs 

ï User-selectable rated frequency 50/60 Hz 

ï Three normally open power output contacts 

ï Two change-over signal output contacts  and three additional change-over signal  output contacts on the optional I/O module 

ï Output contact functions freely configurable for desired operation 

ï Two galvanically isolated digital inputs and  three additional galvanically isolated digital  inputs on the optional I/O module

ï Disturbance recorder  

- recording time up to 80 seconds 

- triggering by one or several internal or  digital input signals 

- records four analog channels and up to  eight user

-selectable digital channels 

- adjustable sampling rate 

ï Non-volatile memory for 

- up to 100 event codes with time stamp 

- setting values 

- disturbance recorder data 

- recorded data of the five last events with  time stamp 

- number of AR shots and pickups/trips  for protection elements 

- target messages and LEDs showing the  status at the moment of power failure 

ï HMI with an alphanumeric LCD and  manoeuvring buttons 

- eight programmable LEDs 

ï Multi-language support 

ï User-selectable password protection for  the HMI 

ï Display of primary current values 

ï Demand values 

ï All settings can be modified with a PC 

ï Optical front communication connection:  wirelessly or via cable

ï Optional rear communication module with  plastic fibre-optic, combined  fibre-optic (plastic and glass) or RS-485  connection for system communication  using the SPA-bus, IEC 60870-5-103 or  Modbus (RTU and ASCII) communication  protocol 

ï Optional DNP 3.0 rear communication  module with RS-485 connection for system  communication using the DNP 3.0 communication protocol. 

ï Battery back-up for real-time clock

ï Battery charge supervision 

ï Continuous self-supervision of electronics  and software. 

ï Detachable plug-in unit