Technical Data - ABB Relion 670 Series Technical Reference Manual

Section 5
Differential protection
5.3.6
172

Technical data

Table 92: STSGGIO (11) technical data
Function
Operate current, zero sequence
Operate current, low operation
Operate voltage, phase to neutral
Operate voltage, phase to phase
Timers, general
Critical impulse time
Impulse margin time
Transient overreach
Range or value
(1-100)% of lBase
(1-100)% of lBase
(1-100)% of VBase
(1-100)% of VBase
(0.000-60.000) s
10 ms typically at 0.5 to.2 x Iset
20 ms typically
< 2% at τ = 100 ms
1MRK505222-UUS C
Accuracy
±1,0% of I
n
±1,0% of I
n
± 0,5% of V
n
± 0,5% of V
n
± 0.5% ± 10 ms
-
-
-
Technical reference manual