Answer Posted / soumya chatterjee

First of all if you want to mean MCCB please read Moulded
Case Circuit Breaker not Motor Control Circuit Breaker.
MCCBs are superior than MCB by virtue of its higher short
time current withstand capacity.

What are the causes of having an rmu explode after installation? And how do u treat the bushings of an rmu?

2532

---

Pleae send me last 5 years of Question book about RRB chennai.

2295

---

Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

2029

---

What are root loci?

1102

---

what is high - pot test. what's its use?????

2186

---

Define stepper motor. What is the use of stepper motor?

1228

---

hii this is ranjith from hyd... i want to know what type of questions they ask in interview...and hw the interview will go..? what subjects thay ask specially for electrical engg students?

1977

---

How to calculate LT XLPE CABLE for 11 kv / 433 v , 1000 kva oil type transformer system?

1920

---

Why neutral cable carry current.

1976

---

what is the VA(Volt-amphere)? define with calculation?

1286

---

we have 3 single phase transformers. how will we generate 6 supply from 3 phase supply input

2120

---

How do we find the rating of a transformer, if it got burnt badly.

1562

---

Pl. share your experience about industrial-electronics repair of machine tool.

1901

---

Explain and give examples about VCB?

3312

---

If we need4× 50mm sq cable but it's not available so we can pull 4×25mm sq 2cables

1480

---