Rev.23
77/311
If overcurrent fault is 24xI
n
=12000 Ap, IEEE Extremely inverse curve defines a tripping value of
0.376 s (Figure 3) for 51 function. It is considered that this time is too high, so when current fault
reaches 24xI
n
, definite time overcurrent function will be work. 50 function tap is adjusted at 14xIn
so definite time overcurrent function will trip when current fault is higher than 14xIn (50 function
does not wait to reach 24xIn)
The figure below (Figure 4), shows the tripping curve of the relay:
Figure 4. Relay tripping curve
14; 0,1
0,010
0,100
1,000
10,000
100,000
0
5
10
15
20
25
30
35
t
(s)
I
Function 51
Function 50
Содержание SIL B
Страница 1: ...EN_FANOXTD_MANU_SIL_Feeder_SILB_R023 Docx USER S MANUAL SIL B Feeder Relay...
Страница 8: ...www fanox com Rev 23 8 311 2 DIMENSIONS AND CONNECTION DIAGRAMS 2 1 Equipment front view...
Страница 9: ...www fanox com Rev 23 9 311 2 2 Equipment dimensions...
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Страница 11: ...www fanox com Rev 23 11 311 2 3 Cut out pattern CUT OUT PATTERN...
Страница 12: ...www fanox com Rev 23 12 311 2 4 Connection diagrams Analog connections...
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Страница 14: ...www fanox com Rev 23 14 311 Digital connections Outputs and Trip circuit supervision...
Страница 15: ...www fanox com Rev 23 15 311 2 5 Terminals IEC 61850 or DNP3 0 protocols...
Страница 17: ...www fanox com Rev 23 17 311 IEC 60870 5 103 protocol...
Страница 25: ...www fanox com Rev 23 25 311 3 3 Functional diagram...
Страница 28: ...www fanox com Rev 23 28 311 3 5 1 SIL B 1 CHARGE CURVE 3 5 2 SIL B 5 CHARGE CURVE...
Страница 38: ...www fanox com Rev 23 38 311 4 6 4 Thermal protection curves This is the thermal curve for 3 minutes...
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Страница 194: ...www fanox com Rev 23 194 311 Polarization V 35 0 V C Operating Angle 180 C Halfcone Angle 3 C...
Страница 307: ...www fanox com Rev 23 307 311 50BF init Fault init 79 Closure permission 52 closure permission...
Страница 308: ...www fanox com Rev 23 308 311 12 8 LED s configuration LEDs Blinking Latch Negate d LED On LED 1 LED 2 LED 3 LED 4 LED 5...
Страница 310: ...www fanox com Rev 23 310 311 NOTES...
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