Hitachi Relion 670 Series Product Manual page 94

Line differential protection RED670
Version 2.2
Table 49. Phase selection, quadrilateral characteristic with settable angle FRPSPDIS
Function
Minimum operate current
Reactive reach, positive
sequence
Resistive reach, positive
sequence
Reactive reach, zero sequence
Resistive reach, zero sequence
Fault resistance, Ph-E faults,
forward and reverse
Fault resistance, Ph-Ph faults,
forward and reverse
Reset ratio
94
GUID-9E13C38A-3B6D-402B-98A6-6CDA20632CE7 v5
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
105% typically
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Accuracy
±1.0% of I at I ≤ I
r r
±1.0% of I at I > I
r
±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
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1MRK 505 379-BEN R
Hitachi Energy