Protection Functions; Distance Protection (Dstpdis) - ABB REX640 Product Manual

REX640
Product version: 1

Protection functions

Table 35. Distance protection (DSTPDIS)
Characteristic
Operation accuracy
1)
Shortest operate time SIR
Transient overreach SIR = 0.1...50
Reset time
Reset ratio
Operate time accuracy
1) Measured with static power output (SPO)
2) SIR = Source impedance ratio
ABB
2)
: 0.1...50
Value
At the frequency f = f
n
Current:
±1.5% of the set value or ±0.002 × I
Voltage:
±1.5% of the set value or ±0.002 × U
Impedance:
±2.5% of the set value or ±0.05 Ω
Phase angle: ±2°
25 ms
<8.5%
Typically 45 ms
Typically 0.96/1.04
±1.0% of the set value or ±20 ms
1MRS759144 A
n
n
37