Hitachi Relion 670 Series Product Manual page 91

Line differential protection RED670
Version 2.2
Table 43. Distance measuring zone, quadrilateral characteristic for series compensated lines ZMCPDIS, ZMCAPDIS
Function
Number of zones
Minimum operate residual
current, zone 1
Minimum operate current, Ph-Ph
and Ph-E
Positive sequence reactance
Positive sequence resistance
Zero sequence reactance
Zero sequence resistance
Fault resistance, Ph-E
Fault resistance, Ph-Ph
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
Table 44. Phase selection, quadrilateral characteristic with fixed angle FDPSPDIS
Function
Minimum operate current
Reactive reach, positive
sequence
Resistive reach, positive
sequence
Reactive reach, zero sequence
Resistive reach, zero sequence
Fault resistance, phase-to-earth
faults, forward and reverse
Fault resistance, phase-to-phase
faults, forward and reverse
Load encroachment criteria:
Load resistance, forward and
reverse
Safety load impedance angle
Reset ratio
Hitachi Energy
SEMOD173239-2 v10
Range or value
Max 5 with selectable direction
(5-1000)% of IBase
(10-1000)% of IBase
(0.10-3000.00) Ω/phase
(0.10-1000.00) Ω/phase
(0.01-9000.00) Ω/phase
(0.01-3000.00) Ω/phase
(0.10-9000.00) Ω/loop
(0.10-3000.00) Ω/loop
<5% at 85 degrees measured
with CCVT's and 0.5<SIR<30
(0.000-60.000) s
25 ms typically
105% typically
Min. = 20 ms
Max. = 50 ms
M16024-1 v12
Range or value
(5-500)% of IBase
(0.50–3000.00) Ω/phase
(0.10–1000.00) Ω/phase
(0.50–9000.00) Ω/phase
(0.50–3000.00) Ω/phase
(1.00–9000.00) Ω/loop
(0.50–3000.00) Ω/loop
(1.00–3000.00) Ω/phase
(5-70) degrees
105% typically
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Accuracy
-
-
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±2.0% static accuracy
±2.0 degrees static angular accuracy
Conditions:
Voltage range: (0.1-1.1) x U
r
Current range: (0.5-30) x I
r
Angle: at 0 degrees and 85 degrees
-
±0.2% or ± 35 ms whichever is greater
IEC 60255-121
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-
Accuracy
±1.0% of I at I ≤ I
r r
±1.0% of I at I > I
r
±2.5% static accuracy
±2.0 degrees static angular accuracy
Conditions:
Voltage range: (0.1-1.1) x U
r
Current range: (0.5-30) x I
r
Angle: at 0 degrees and 85 degrees
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1MRK 505 379-BEN R
91