Answer Posted / soma

AS SAME

explain different types of d.c motors?

1227

---

what is mathed of check the D.C MOTOR 181 KW (ARMATURE AND FIELD) WHAT IS THE MATHED OF CHECK THE THYRISTOR MODULE (HIGH CURRENT)

2090

---

what is the best method of grounding in 30 MW generator?

2077

---

can we synchronize star system generators with delta system transmission line ? and how ?

2887

---

what is ic 01,ic 06 ?is it types of cooling?

4374

---

what is rocking arrangement in arc heating

2184

---

why constant voltage transformer should be start without load? and if started then what will happen?

2089

---

Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!

1842

---

Explain Energy and Power signals?

1816

---

I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?

2373

---

Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

2371

---

Can i use the B-curve MCB instead of C-curve MCB

2081

---

can any one provide me a connection wiring diagram for a DG set control panel along with BOM?

2258

---

Why cables and busbar both needed in LT Panels?

2235

---

what are the preventive maintanance actions taken for air circuit breaker? please answer me

2096

---