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5.7 Function 47. Phase balance voltage protection
This protection function can be set by using the following parameters:
Function
Description
Minimum
Maximum
Step
Unit
Default
47
Phase balance voltage protection
Function Enable
-
-
No/Alarm/Trip
-
No
Voltage Tap
0.08
2.00
0.01
xUn
0.20
Time delay
0.020
300.000
0.001
s
0.200
Reset Time
0.020
300.000
0.001
s
0.200
“Un” will be always the setting
Nominal V. P-P divided by
√𝟑
regardless the connection type, due to
the negative sequence voltage is always calculated in a phase-neutral system.
The time delay is independent from the negative sequence voltage, if the negative sequence voltage
exceeds the adjusted value for an equal or greater amount of time than this preset value, the protection
function activates (trips) and does not reset itself until the negative sequence voltage drops below the
95% of the voltage pick-up.
The function activates at 100% of the preset input and deactivates at 95%. The reset time is
configurable.
The accuracy of the Time Delay is equal to the set time delay ±30ms or ±0.5% (whichever is greater).
Содержание SIL-G
Страница 1: ...USER S MANUAL USER S MANUAL SIL G Feeder Relay...
Страница 8: ...www fanox com Rev 01 8 151 2 3 Connection diagrams 2 3 1 Analog current connections...
Страница 10: ...www fanox com Rev 01 10 151 3 VT configuration phase neutral...
Страница 11: ...www fanox com Rev 01 11 151 3 VT configuration phase neutral residual voltage...
Страница 12: ...www fanox com Rev 01 12 151 3VT configuration phase phase residual voltage...
Страница 13: ...www fanox com Rev 01 13 151 2VT configuration phase phase residual voltage...
Страница 14: ...www fanox com Rev 01 14 151 3 VT configuration phase neutral phase B line voltage...
Страница 27: ...www fanox com Rev 01 27 151 Dimensions 175x175x150 3 3 Functional diagram...
Страница 28: ...www fanox com Rev 01 28 151...
Страница 46: ...www fanox com Rev 01 46 151 4 10 4 Thermal protection curves This is the thermal curve for 3 minutes...
Страница 69: ...www fanox com Rev 01 69 151 General trip...
Страница 88: ...www fanox com Rev 01 88 151...
Страница 89: ...www fanox com Rev 01 89 151...
Страница 90: ...www fanox com Rev 01 90 151...
Страница 95: ...www fanox com Rev 01 95 151 Time Minutes Seconds Milliseconds...
Страница 150: ...www fanox com Rev 01 150 151 NOTES...
Страница 151: ...www fanox com Rev 01 151 151...