T Ec H N I C Al D Es C R I P Ti On; Functional Description; Product Functions; Protection Functions - ABB REU 610 Technical Reference Manual

1MRS755769
5 .
5 . 1.
5 . 1. 1.
5 . 1. 1. 1.
5 . 1. 1. 2 .
Voltage Relay
Technical Reference Manual

T ec h n i c al d es c r i p ti on

F u n c ti on al d es c r i p ti on
P r od u c t f u n c ti on s
P r otec ti on f u n c ti on s
Table 5 .1.1.1.-1 I EC s y mbols and I EEE dev ice numbers
F u n c ti on d es c r i p ti on
Overvoltage protection, low -set stage
Overvoltage protection, high-set stage
Negative phase-sequence overvoltage
protection
Undervoltage protection, low -set stage
Undervoltage protection, high-set stage
Positive phase-sequence undervoltage
protection
Residual overvoltage protection, low -set stage U
Residual overvoltage protection, high-set
stage
Circuit-breaker failure protection
L ockout relay
F or protection function descriptions, refer to S ection 5 .1.4 . Protection.
I n p u ts
The relay is provided with four energizing inputs, two digital inputs and three
optional digital inputs controlled by an ex ternal voltage. Three of the
energizing inputs are for the phase- to- phase voltages and one for the residual
voltage.
The relay is mainly designed to measure phase- to- phase
voltages, but it can be used for measuring phase- to- earth
voltages as well. H owever, the relay does not convert the voltage
from phase- to- earth voltage to phase- to- phase voltage.
The functions of the digital inputs are determined with the S GB switches. F or
details, refer to S ection 5 .2.1. Input/ output connections and Table 5 .1.4 .7 .- 7 ,
Table 5 .2.1.- 1 and Table 5 .2.1.- 5 .
REU 610
I EC s ym b ol I EEE d ev i c e
n u m b er
U> 59P-1
U> > 59P-2
U > 47
2
U< 27P-1
U< < 27P-2
U < 27D
1
> 59N-1
0
U > > 59N-2
0
CBFP CBFA IL
86
15