ABB RELION RED670 Series Product Manual page 73

Line differential protection RED670 2.2
Product version: 2.2
Impedance protection
Table 35. Distance measuring zone, Quad ZMQPDIS
Function
Number of zones
Minimum operate residual
current, zone 1
Minimum operate current,
phase-to-phase and phase-to-
earth
Positive sequence reactance
Positive sequence resistance
Zero sequence reactance
Zero sequence resistance
Fault resistance, phase-to-earth
Fault resistance, phase-to-phase
Dynamic overreach
Definite time delay Ph-Ph and
Ph-E operation
Operate time
Reset ratio
Reset time at 0.1 x Zreach to 2 x
Zreach
ABB
M13842-1 v15
Range or value Accuracy
Max 5 with selectable -
direction
(5-1000)% of IBase -
(10-1000)% of IBase -
(0.10-3000.00) Ω/phase ±2.0% static accuracy
±2.0 degrees static angular accuracy
(0.01-1000.00) Ω/phase
Conditions:
Voltage range: (0.1-1.1) x U
(0.10-9000.00) Ω/phase
Current range: (0.5-30) x I
Angle: at 0 degrees and 85 degrees
(0.01-3000.00) Ω/phase
(0.10-9000.00) Ω/loop
(0.10-3000.00) Ω/loop
<5% at 85 degrees -
measured with CVT's and
0.5<SIR<30
(0.000-60.000) s ±0.2% or ±40 ms whichever is greater
25 ms typically IEC 60255-121
105% typically -
Min. = 20 ms -
Max. = 50 ms
1MRK 505 379-BEN C
r
r
73