Setting of timers for distance protection zones
The required time delays for different distance-protection zones are independent of
each other. Distance protection zone1 can also have a time delay, if so required for
selectivity reasons. One can set the time delays for all zones (basic and optional) in a
range of 0 to 60 seconds. The tripping function of each particular zone can be inhibited
by setting the corresponding Operation parameter to Off. Different time delays are
possible for the ph-E (tPE) measuring loops in each distance protection zone
separately, to further increase the total flexibility of a distance protection.
3.6.5.3 Setting parameters
Table 64: ZMMPDIS (21) Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Enabled Disable/Enable Operation
IBase 1 - 99999 A 1 3000 Base current, i.e. rated current
Vbase 0.05 - 2000.00 kV 0.05 400.00 Base voltage, i.e. rated voltage
OperationDir Disabled
Non-directional
Forward
Reverse
- - Forward Operation mode of directionality NonDir /
Forw / Rev
X1 0.50 - 3000.00 ohm/p 0.01 30.00 Positive sequence reactance reach
R1 0.10 - 1000.00 ohm/p 0.01 5.00 Positive seq. resistance for zone
characteristic angle
X0 0.50 - 9000.00 ohm/p 0.01 100.00 Zero sequence reactance reach
R0 0.50 - 3000.00 ohm/p 0.01 15.00 Zero seq. resistance for zone characteristic
angle
RFPG 1.00 - 9000.00 ohm/l 0.01 100.00 Fault resistance reach in ohm/loop, Ph-G
Timer tPG Disabled
Enabled
- - Enabled Operation mode Disable/ Enable of Zone
timer, Ph-G
tPG 0.000 - 60.000 s 0.001 0.000 Time delay of trip, Ph-G
IMinPUPG 10 - 30 %IB 1 20 Minimum pickup phase current for Phase-to-
ground loops
IMinOpIR 5 - 30 %IB 1 5 Minimum operate residual current for Phase-
Ground loops
Table 65: ZMMAPDIS (21) Group settings (basic)
Name
Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Enabled Disable/Enable Operation
IBase 1 - 99999 A 1 3000 Base current, i.e. rated current
Vbase 0.05 - 2000.00 kV 0.05 400.00 Base voltage, i.e. rated voltage
Table continues on next page
1MRK504116-UUS C Section 3
IED application
305
Application manual
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