Name
Values (Range)
Unit
Step
Default
Description
IMinPUPG
5 - 30
%IB
1
5
Minimum pickup phase current for Phase-to-
ground loops
AngNegRes
90 - 175
Deg
1
115
Angle of blinder in second quadrant for
forward direction
AngDir
5 - 45
Deg
1
15
Angle of blinder in fourth quadrant for forward
direction
6.9.6
Technical data
Table 155:
ZMRPDIS, ZMRAPDIS (21) technical data
Function
Range or value
Accuracy
Number of zones
Max 5 with selectable
direction
-
Minimum operate residual
current, zone 1
(5-1000)% of IBase
-
Minimum operate current, phase-
to-phase and phase-to-ground
(10-1000)% of IBase
-
Positive sequence reactance
(0.10-3000.00) Ω/
phase
± 2.0% static accuracy
± 2.0 degrees static angular accuracy
Conditions:
Voltage range: (0.1-1.1) x V
n
Current range: (0.5-30) x I
n
Angle: at 0 degrees and 85 degrees
Positive sequence resistance
(0.01-1000.00) Ω/
phase
Zero sequence reactance
(0.10-9000.00) Ω/
phase
Zero sequence resistance
(0.01-3000.00) Ω/
phase
Fault resistance, phase-to-
ground
(0.10-9000.00) Ω/loop
Fault resistance, phase-to-phase (0.10-3000.00) Ω/loop
Dynamic overreach
<5% at 85 degrees
measured with CVT’s
and 0.5<SIR<30
-
Impedance zone timers
(0.000-60.000) s
± 0.5% ± 10 ms
Operate time
24 ms typically
-
Reset ratio
105% typically
-
Reset time
30 ms typically
-
1MRK505222-UUS C
Section 6
Impedance protection
325
Technical reference manual
Содержание Relion 670 series
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