ABB REF 610 Technical Reference Manual page 69

1MRS755310
Feeder Protection Relay
Technical Reference Manual
Feature
Operation accuracy
10...100%
*
Table 5.1.4.11.-5 Stage ARC and L>
Feature
Stage ARC
Set trip value ArcI>
Operate time
ArcI >
0
Operate time
Resetting time
Operation accuracy
L>
Activation time of L>
Resetting time
a)
Applies only if a signal output contact (SO1...5) is used. If a power output contact (PO1...3) is used, 2...3
ms will be added.
Fig. 5.1.4.11.-1 Relative sensitivity of lens sensors
Value
±3% of the set start value and ±1 unit
Value
0.5...35.0 x I
n
a)
< 15 ms
5.0...800% I
n
a)
< 17 ms
30 ms
±7% of the set start value
< 15 ms
20 ms
REF 610 REF 610
69