A P P Li C Ati On; Requirements; Configuration - ABB REU 610 Technical Reference Manual

1MRS755769
4 .
4 . 1.
4 . 2 .
Voltage Relay
Technical Reference Manual

A p p li c ati on

R E U 610 is a versatile multifunction voltage relay which is used in general
voltage supervision applications. It complements the range of feeder
protection relay R E F 610 and motor protection relay R E M
outgoing feeder and motor feeder applications. The relay can also be used as
back- up protection for industrial as well as utility applications.
The large number of integrated protection functions, including two- stage
overvoltage protection, two- stage undervoltage protection and two- stage
residual overvoltage protection, makes the relay a complete protection against
various voltage fault conditions.
The large number of digital inputs and output contacts allows a wide range of
applications.
Req u i r em en ts
To secure correct and safe operation of the relay, preventive maintenance is
recommended to be performed every five years when the relay is operating
under the specified conditions; see Table 4 .1.- 1 and
S ection 5 .2.3 . Technical data.
W hen being used for real- time clock or recorded data functions, the battery
should be changed every five years.
Table 4.1.-1 Env ironmental conditions
Recommended temperature range ( continuous)
L imit temperature range ( short-term)
Temperature influence on the operation accuracy of the voltage
relay w ithin the specified service temperature range
Transport and storage temperature range
C on f i gu r ati on
The appropriate configuration of the output contact matrix enables the use of
the signals from the protection stages as contact functions. The start signals
can be used for blocking co- operating protection relays and signalling.
The F ig. 4 .2.- 1 represents the relay with the default configuration: all start
signals are routed to signal outputs and all trip signals to power outputs.
REU 610
610 in industrial
-10...+ 55°C
-40...+ 70°C
0.1% / °C
-40...+ 85°C
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