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Table 69. Distance protection (DSTPDIS)
Characteristic
Value
Operation accuracy
At the frequency f = f
n
Current:
±1.5% of the set value or ±0.002 x I
n
Voltage:
±1.5% of the set value or ±0.002 x U
n
Impedance:
±2.0% static accuracy
Phase angle: ±2°
Start time
1)2)
SIR
3)
: 0.1–60
Typical 50 ms (±15 ms)
Transient overreach SIR = 0.1 – 60
< 6%
Reset time
< 50 ms
Reset ratio
Typical 0.96
Operate time accuracy in definite time mode
±1.0% of the set value or ±20 ms
1) Includes the delay of the signal output contact
2) Relates to start signals of the Zone Z1–Zone ZAR2
3) SIR = Source impedance ratio
Feeder Protection and Control
1MRS756380 A
REF630
Product version: 1.0
Issued: 15.09.2009
48
ABB
Содержание REF630
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