Technical Data - ABB Relion 670 Series Technical Reference Manual

Section 6
Impedance protection
Table 101: ZDRDIR (21D) Group settings (basic)
Name Values (Range)
IBase 1 - 99999
VBase 0.05 - 2000.00
IMinPUPP 5 - 30
IMinPUPG 5 - 30
AngNegRes 90 - 175
AngDir 5 - 45
6.1.7
194
Unit Step
A 1
kV 0.05
%IB 1
%IB 1
Deg 1
Deg 1

Technical data

Table 102: ZMQPDIS (21) Technical data
Function
Number of zones
Minimum operate residual
current, zone 1
Minimum operate current, phase-
to-phase and phase-to-ground
Positive sequence reactance
Positive sequence resistance
Zero sequence reactance
Zero sequence resistance
Fault resistance, phase-to-
ground
Fault resistance, phase-to-phase
Dynamic overreach
Impedance zone timers
Operate time
Reset ratio
Reset time
Default Description
3000 Base setting for current level
400.00 Base setting for voltage level
10 Minimum pickup delta current (2 x current of
lagging phase) for Phase-to-phase loops
5 Minimum pickup phase current for Phase-to-
ground loops
115 Angle of blinder in second quadrant for
forward direction
15 Angle of blinder in fourth quadrant for forward
direction
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 V
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 ± 0.5% ± 10 ms
24 ms typically -
105% typically -
30 ms typically -
1MRK505222-UUS C
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Technical reference manual