ABB REF610 - Element ARC and L>; Relative Sensitivity of Lens Sensors

Feature Value
Operation accuracy
*
10...100% ±3% of the set pickup value and ±1 unit
Table 5.1.4.11.-5 Element ARC and L>
Feature Value
Element ARC
Set trip value ArcI> 0.5...35.0 x I
n
(CT)
Operate time < 15 ms
a)
ArcI
0
> 5.0...800% I
n
(CT)
Operate time < 17 ms
a)
Resetting time 30 ms
Operation accuracy ±7% of the set pickup value
L>
Activation time of L> < 15 ms
Resetting time 20 ms
a)
Applies only if a non-trip output contact (SO1...5) is used. If a trip output contact (PO1...3) is used, 2...3
ms will be added.
Fig. 5.1.4.11.-1 Relative sensitivity of lens sensors
72
REF610REF610
Feeder Protection Relay
Technical Reference Manual - ANSI Version
1MRS755535