![FANOX SIL-G Скачать руководство пользователя страница 47](http://html1.mh-extra.com/html/fanox/sil-g/sil-g_user-manual_4588716047.webp)
Rev.01
47/151
4.11 Function 37. Instantaneous phase undercurrent
This protection function can be set by using the following parameters:
Function
Description
Minimum
Maximum
Step
Unit
Default
37
Instantaneous phase undercurrent
Function Enable
-
-
No/Alarm/Trip
-
No
Current Tap
0.010
30.000
0.001
xIn
0.500
Minimum Level
0.000
1.000
0.001
xIn
0.000
Time delay
0.060
300.00
0.001
s
0.200
The setting “Minimum level” indicates the minimum level of current it is necessary to measure to work
with the function. This is, if the measured current is lower than the “Minimum Level” setting, the function
will not trip although this current is lower than the tap.
The time delay is independent from the operating current flowing through the relay, so if the phase
current drops below its predetermined 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 average value of the
phase exceeds the point of current pick-up.
The function activates at 100% of the preset input and deactivates at 105%. The reset is instantaneous.
The accuracy of the Time Delay is equal to the set time delay ±30ms or ±0.5% (whichever is greater).
4.12 Function AFD. Arc Flash Detection
This protection function can be set by using the following parameters:
Function
Description
Minimum
Maximum
Step
Unit
Default
AFD
Arc Flash Detection
Function Enable
-
-
No/Alarm/Trip
-
No
Current Tap
1
20
1
xIn
2
Time delay
1
4
1
samples
1
The setting “Time delay” indicates the number of samples of the measurement that the relay will take
before the trip.
The arc flash can be detected by two different methods:
•
By current: When the current of the line is higher than the one set in “current tap” the protection
will trip.
•
By light: When arc flash sensor connected to the relay detects the light due to the arc appeared
in the circuit breaker, it will trip.
To activate the high-speed output, it is necessary to apply minimum 35Vdc.
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...