ABB RELION 670 Series Product Manual page 69

Transformer protection RET670 2.1 IEC
Table 37. Faulty phase identification with load encroachment FMPSPDIS
Function
Load encroachment criteria:
Load resistance, forward and
reverse
Table 38. Distance measuring zone, quadrilateral characteristic, separate settings ZMRPDIS, ZMRAPDIS
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 phase-
phase and phase-earth
operation
Operate time
Reset ratio
Reset time at 0.1 x Zreach to 2
x Zreach
ABB
SEMOD153649-2 v7
Range or value
(1.00–3000.00) W/phase
(5–70) degrees
GUID-7617A215-AE7C-47CC-B189-4914F530F717 v7
Range or value Accuracy
Max 5 with -
selectable direction
(5-1000)% of IBase -
(10-1000)% of IBase -
(0.10-3000.00) Ω/ ±2.0% static accuracy
phase ±2.0 degrees static angular accuracy
Conditions:
(0.01-1000.00) Ω/
Voltage range: (0.1-1.1) x U
phase
Current range: (0.5-30) x I
(0.10-9000.00) Ω/ Angle: at 0 degrees and 85 degrees
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 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
Accuracy
±2.0% static accuracy
Conditions:
Voltage range: (0.1–1.1) x U
Current range: (0.5–30) x I
Angle: at 0 degrees and 85 degrees
r
r
1MRK 504 155-BEN F
r
r
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