43
21 Distance
protection
Net type = high/low ohmic
earth start IE> used, unused
switching onto faults = normal, overreach zone, trip after
start
Signal comparison overreach scheme time set =
30 ... 300 000 ms
U / I- Start
characteristic:
I>, IE> and IF> = 0.05 ... 4.00 In
UF< = 0.05 ... 0.90 Un
Phase selection = cyclic/acyclic
Earth factor: factor k = 0.00 ... 10.00, angle (k) = -60 ... 60°
3 Impedance, 1
overreach stage
and 1 autoreclose
control stage:
R = 0.05 ... 120.00 Ohm (secondary values)
X = 0.05 ... 120.00 Ohm (secondary values)
t = 20 ... 10 000 ms
Angle delta 1 = -45.00 ... 0.00°
Angle delta 2 = 90.00 ... 135.00°
1 directional stage
Angle delta 1 = -45.00 ... 0.00°
Angle delta 2 = 90.00 ... 135.00°
t = 20 ... 10 000 ms
1 non directional stage
t = 20 ... 10 000 ms
Power quality functions
Power factor
controller
Switching sequence: linear, circular
Switching histeresis: neutral zone 105 ... 200% of Qco
Pick up value: 0 ... 100% of Qco
Reactive power of smallest bank Qco: 1.000 ... 20 000.000
kVar
Configuration banks: 1:1:1:1, 1:1:2:2, 1:2:2:2, 1:2:4:4,
1:2:4:8
Number of banks: 1 ... 4
Max switching cycles: 1 ... 10 000
Set point cos φ: 0.7 ... 1.00 ind. or cap.
Limiting value cos φ: 0.00 ... 1.00 ind. or cap.
Method of operation: direct, integrating
dicharge blocking time: 1 ... 7200 s
dead time: 1 ... 120 s
power on delay: 1 ... 7200 s
duration of integration: 1 ... 7200 s
High harmonic
protection
Voltage THD startvalue = 5 ... 50%
Voltage THD time delay = 0.01 ... 360.00 s
Time = 0.05 ... 360.00 s
RMS voltage start value = 0.10 ... 1.00 Un
Switching
resonance
protection
Voltage THD Start value = 5 ... 50%
Delta Voltage THD Start Value = 1 ... 50 %
Voltage THD Time Delay = 0.01 ... 60.00 s
t = 0.05 ... 60.00 s
PFC OP Time = 0.01 ... 120.00 s
RMS Voltage start value = 0.10 ... 1.00 Un
Other functions
Multifunction Protection and Switchbay Control
Unit
Technical Reference Manual
REF 542plusREF 542plus
1MRS755859
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