why anti pumping relay is not given to tripping coil of the
breaker? why only to closing coil?
- 2 Answers
- 5210 Views
- INEL, Siemens, I also Faced
- E-Mail Answers
Answer Posted / karna
Actually in Breakers Closing coil and Trip coil are
operated on Pulse command (i.e just initaion is enough,
continous supply not required). Anitpuming Means once the
breaker is colsed ,again if anyone ( Auto Command, Through
TNC switch ) can close it will not close because in closing
circuit Antipuming NC will be in series, Once the breaker
close means antipuming will activate unitll trip command
given by us.
Tripping coil plays major role in Circuit brakers, because
if any faults ( i.e O/L, E/L, short Circuit etc..)occur
breakers has to tirp. For trip we can do manaully at any
time.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?
v/f drive basic princeple
what is method for testing CT
how a flip flop can be used as a latch?
AL=0B9H,bl=75H, ADD AL,BL AL=____________? CF________? OF___________?
can we find the inductance of a induction motor?
with 3 phase board on a 63 amp rcd is it ok to have 6 electrical showers 2 on each phase and what problems could happen
EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long?
1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to confirm its base capacity?
Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks
can some one clearly explain why -48 volt DC use in telecom site????
What are the advantages and disadvantages of short-pitched winding?
Explain about c.t?
ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH
what type of earthing do for dry fissure rock?
