ABB Relion 670 series, Technical Reference Manual

Page: 178 / 1232

5.3.6 Technical data
Table 92: STSGGIO (11) technical data
Function Range or value Accuracy
Operate current, zero sequence (1-100)% of lBase ±1,0% of I
n
Operate current, low operation (1-100)% of lBase ±1,0% of I
n
Operate voltage, phase to neutral (1-100)% of VBase ± 0,5% of V
n
Operate voltage, phase to phase (1-100)% of VBase ± 0,5% of V
n
Timers, general (0.000-60.000) s ± 0.5% ± 10 ms
Critical impulse time 10 ms typically at 0.5 to.2 x Iset -
Impulse margin time 20 ms typically -
Transient overreach < 2% at τ = 100 ms -
Section 5
1MRK505222-UUS C
Differential protection
172
Technical reference manual