what is post close & pre close of trip circuit supervision
relay in circuit breaker control scheme?
Answer Posted / ashish patil
Preclose means breaker in off condition it supervise the trip coil & trip ckt is healthy.
& Postclose means It supervise When breaker is ON.
| Is This Answer Correct ? | 43 Yes | 5 No |
Post New Answer View All Answers
Logic using 1 kV or 1,1 kV grade in house wiring Low voltage cable. Explain/suggest? some use 1kV and some prefer 1.1kV grade insulation low voltage cable why??
What type of pipe material G.I or M.S is used for sprinkler system?
WHY THREE PHESE SYSTEM VOLTAGE APPLIED IN 440 VOLT
how calculate the electrical load for industry and office
What is Surge Capacitor? Why it is require in Generator Circuit Breaker,inspite of surge arrester?
What is meant by analogous system?
how to handle 2500 kva transformar
Why have to use copper cable for local isolator to motor ?
how many electricity poles are there and what are the names and their sizes.
What is the dependency of stiffness on load angle??
How will polarity test of Dy5 Transformer ?
Why should we hire you over the others waiting to be interview?
What is the minimum IR value of HT/ LT cable? Pls post separetely!!!!!
What is the polarization index value ? (Pi value)and simple definition of polarization index ?
Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.