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4.15. Function 74TCS. Trip circuit supervision
This function permits monitoring of the circuit breaker trip circuits. This is performed in two ways:
•
Verifying there is a trip voltage.
•
Verifying the continuity of the trip circuit, in both circuit breaker position, both open and closed.
For the first monitoring procedure, a digital input is fitted, with stricter activation than the other inputs.
For the second monitoring procedure, a weak current is injected which must flow from the relay to the
circuit breaker trip coil. Finally, to avoid spurious components this must be appropriately time delayed.
This function settings are as follows:
Function
Description
Minimum
Maximum
Step
Unit
Default
74TCS
Trip circuit supervision
Permission
-
-
Yes/No
-
No
Time delay
0.02
300.00
0.01
s
2.00
The schematic for this criteria is as follows:
Circuit A superv ision
Circuit B superv ision
Control v oltage
T
0
T
T_UP
Function permission
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...
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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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