REJ 513
User’s Guide
ABB Substation Automation
Products and Systems
1MRS750613-MUM
4
Introduction
About this manual
The purpose of this manual is to provide the user with thorough information on the
relay REJ 513 and its applications. The manual consists of three parts, the first of
which, part A, instructs the user in controlling the relay functions. Part B is a more
detailed description of the features, operation and applications of the relay, whereas
part C concentrates on service.
The use of the relay
The overcurrent relay REJ 513 is intended to be used for selective short-circuit
protection in medium voltage distribution networks. The protection relay includes a
phase overcurrent unit with flexible tripping and signalling facilities. The overcurrent
relay can also be used in other applications requiring single-, two- or three-phase
overcurrent protection.
Features
•
Three-phase low-set overcurrent stage with definite-time or inverse definite
minimum time (IDMT) characteristic.
•
Three-phase high-set overcurrent stage with instantaneous or definite-time
characteristic.
•
Circuit-breaker failure protection unit.
•
Disturbance recorder.
•
Three accurate current inputs.
•
Galvanically isolated binary input with a wide input voltage range.
•
All settings are modified with a personal computer.
•
Settings are stored into non-volatile memory and remain even in case of power
supply failure.
•
Two normally open power output contacts.
•
Two change-over type signal output contacts.
•
Output contact functions freely configurable for desired operation.
•
Optical PC-connector for two-way data communication.
•
Continuous self-supervision of hardware and software. At a permanent fault all
stages and outputs are blocked.
•
Rated frequency user-selectable 50/60 Hz.
Summary of Contents for REJ 513
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