ABB REX 521 Technical Reference Manual, Standard Configurations page 94

REX 521
Input B01/B02
BI1 Start 3I>
BI2 Start 3I>>
BI3 Start 3I>>>
BI4 Start Io>
BI5 Start Io>>
BI6 Start Io>>>
BI7 Start Iub>
BI8 Start 3Ith>
BI9 Trip 3I>
BI10
Trip 3I>>
BI11 Trip 3I>>>
BI12 Trip Io>
BI13 Trip Io>>
BI14 Trip Io>>>
BI15 Trip Iub>
BI16 Trip 3Ith>
94
Protection Relay
Technical Reference Manual, Standard Configurations
Transient disturbance recorder, DREC
Operation mode
Pre-trg time
Over limit ILx
Over limit Io
Over limit Uo
AI filter time
The recording can be triggered by any (or several) of the alternatives listed below:
• triggering on the rising or falling edge of any (or several) of the digital inputs
• triggering on overcurrent, overvoltage
• triggering via serial communication or a parameter
• periodic triggering
The recording length depends on the number of recordings and inputs used. For example, the
following combination of recording length, number of recordings and number of inputs is available at
50 Hz:
# recordings \ # inputs
1
1 1066 cyc.
21.3 s
5 212 cyc.
4.2 s
10 106 cyc.
2.1 s
DREC digital inputs:
1
M01/M02
H01
Start 3I> Start 3I>->
Start 3I>> Start 3I>>->
Start 3I>>> Start 3I>>>
Start Io>-> Start Io>->
Start Io>>-> Start Io>>->
Start Io>>>-> Start Io>>>-> Start Io>>->
Start Iub> Start Iub>
Start 3Ith> Start 3Ith>
Trip 3I> Trip 3I>->
Trip 3I>> Trip 3I>>->
Trip 3I>>> Trip 3I>>>
Trip Io>-> Trip Io>->
Trip Io>>-> Trip Io>>->
Trip Io>>>-> Trip Io>>>->
Trip Iub> Trip Iub>
Trip 3Ith> Trip 3Ith>
1
H01 not available with transformers.
Trip 1, Trip 2 and Trip 3 are the Output SWGRP signals.
Saturation
Overwrite
Extension
0...100%
0.00...40.00 x In
0.00...40.00 x In
0.00...2.00 x Un
0.000...60.000 s
3
399 cyc.
7.9 s
79 cyc.
1.5 s
39 cyc.
0.7 s
H02 H03
Start 3I>-> Start 3I> Start 3I>
Start 3I>>-> Start 3I>> Start 3I>>
Start 3I> Start 3I>>> Start 3I>>>
Start 3I>> Start Io>-> Start Io>->
Start Io>-> Start Io>>-> Start Io>>->
Start Io>>>-> Start Io>>>-> Start Io>>>
Start Iub> Start Iub> Start Io>
Start 3Ith> Start 3Ith> Start Io>>
Trip 1 Trip 3I> Start Io>>>
Trip 2 Trip 3I>> Start Iub>
Trip 3 Trip 3I>>> Start 3Ith>
- Trip Io>-> Trip 1
- Trip Io>>-> Trip 2
- Trip Io>>>-> Trip 3
- Trip Iub> -
- Trip 3Ith> -
1MRS 751802-MUM
10
125 cyc.
2.5 s
25 cyc.
0.5 s
12 cyc.
0.24 s
H04 H05 H06
Start 3I> Start 3I>
Start 3I>> Start 3I>>
Start 3I>>> Start 3U>
Start Io> Start 3U>>
Start Io>> Start 3U<
Start 3U<<
Start 3U> Start Uo>
Start 3U>> Start Uo>>
Start 3U< Start Uo>>>
Start 3U<< f1 Start 1
Start Uo> f1 Start 2
Start Uo>> f2 Start 1
Start Uo>>> f2 Start 2
Trip 1 Trip 1
Trip 2 Trip 2
Trip 3 Trip 3