ABB RET670 Product Manual page 52

Transformer protection RET670
Customized
Product version: 1.2
Table 31. 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
Impedance zone timers
Operate time
Reset ratio
Reset time
Table 32. 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
52
Range or value
5 with selectable direction
IBase
(5-1000)% of
IBase
(10-1000)% of
(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
24 ms typically
105% typically
30 ms typically
Range or value
IBase
(5-500)% of
(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
1MRK 504 117-BEN D
Accuracy
-
-
-
± 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
-
± 0.5% ± 10 ms
-
-
-
Accuracy
-
± 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
-
ABB