ABB REB611 Busbar and Multipurpose Differential Protection Control

Control

The relay offers control of one circuit breaker or contactor with

dedicated push buttons for opening and closing via the local

HMI or a remote system, for example, PCM600.

By default, the relay is equipped with a single input interlocking

scheme. Binary GOOSE messaging can be used in the creation

of additional interlocking schemes, such as secured object

control (SOC), blocking-based protection schemes or external tripping.

These additional protection and control schemes required by

specific applications are configured using the local HMI, the

Web HMI and the optional application functionality of PCM600.

The local HMI and the Web HMI can be utilized for signal

configuration, while PCM600 is required for the configuration of

GOOSE messaging.

Measurement

The relay continuously measures high-impedance and neutral currents.

The measured values can be accessed via the local HMI or

remotely via the communication interface of the relay. The

values can also be accessed locally or remotely using the Web HMI.

Disturbance recorder

The relay is provided with a disturbance recorder featuring

preconfigured analog and binary channels.The analog channels

can be set to record either the waveform or the trend of the

currents and voltages measured.

The analog channels can be set to trigger the recording function

when the measured value falls below or exceeds the set values.

The binary signal channels can be set to start a recording either

on the rising or the falling edge of the binary signal or on both.

By default, the binary channels are set to record external or

internal relay signals, for example, the start or trip signals of the

relay stages, or external blocking or control signals. Binary relay

signals, such as protection start and trip signals, or an external

relay control signal via a binary input, can be set to trigger the

recording. Recorded information is stored in a nonvolatile

memory and can be uploaded for subsequent fault analysis.

Event log

To collect sequence-of-events information, the relay has a

nonvolatile memory capable of storing 1024 events with the

associated time stamps. The nonvolatile memory retains its

data even if the relay temporarily loses its auxiliary supply. The

event log facilitates detailed pre- and post-fault analyses of

feeder faults and disturbances. The considerable capacity to

process and store data and events in the relay facilitates

meeting the growing information demand of future network

configurations.

The sequence-of-events information can be accessed either via

local HMI or remotely via the communication interface of the

relay. The information can also be accessed locally or remotely

using the Web HMI.