power that might occur instead of maximum exporting power and the relevant Vmin
voltage for this condition.
Minimum operate currents
FRPSPDIS (21) has two current setting parameters, which blocks the respective phase-
to-ground loop and phase-to-phase loop if the RMS value of the phase current (ILn)
and phase difference current (ILmILn) is below the settable threshold.
The threshold to activate the phase selector for phase-to-ground (IMinPUPG) is set to
the default value or a level to securely detect a single line-to-ground fault at the
furthest reach of the phase selection. It is recommended to set IMinPUPP to double
value of IMinPUPG.
The threshold for opening the measuring loop for phase-to-ground fault
(3I0Enable_PG) is set securely detect single line-to-ground fault at remote end on the
protected line. It is recommended to set INBlockPP to double value of 3I0Enable_PG.
3.6.10.4 Setting parameters
Table 76: FRPSPDIS (21) Group settings (basic)
Name Values (Range) Unit Step Default Description
IBase 1 - 99999 A 1 3000 Base current, i.e. rated current
VBase 0.05 - 2000.00 kV 0.01 400.00 Base voltage, i.e. rated voltage
3I0BLK_PP 10 - 100 %IPh 1 40 3I0 limit for disabling phase-to-phase
measuring loops
3I0Enable_PG 10 - 100 %IPh 1 20 3I0 pickup for releasing phase-to-ground
measuring loops
RLdFwd 1.00 - 3000.00 ohm/p 0.01 80.00 Forward resistive reach for the load
impedance area
RldRev 1.00 - 3000.00 ohm/p 0.01 80.00 Reverse resistive reach for the load
impedance area
LdAngle 5 - 70 Deg 1 30 Load angle determining the load impedance
area
X1 0.50 - 3000.00 ohm/p 0.01 40.00 Positive sequence reactance reach
R1PP 0.10 - 1000.00 ohm/p 0.01 15.00 Positive seq. resistance for characteristic
angle, Ph-Ph
X1FwPG 0.10 - 1000.00 ohm/p 0.01 1.50 Positive seq. resistance for characteristic
angle, Ph-G
X0 0.50 - 9000.00 ohm/p 0.01 120.00 Zero sequence reactance reach
R0PG 0.50 - 3000.00 ohm/p 0.01 5.00 Zero seq. resistance for zone characteristic
angle, Ph-G
RFltFwdPP 0.50 - 3000.00 ohm/l 0.01 30.00 Fault resistance reach, Ph-Ph, forward
RFltRevPP 0.50 - 3000.00 ohm/l 0.01 30.00 Fault resistance reach, Ph-Ph, reverse
RFltFwdPG 1.00 - 9000.00 ohm/l 0.01 100.00 Fault resistance reach, Ph-G, forward
Table continues on next page
1MRK504116-UUS C Section 3
IED application
355
Application manual
To Next Page
Loading...
