Answer Posted / nishesh dhal

ELCB Stands for Earth Leakage Circuit Breaker,MCB stands
for Miniature Circuit Breaker & RCCB stands for Residual
Current Circuit Breaker.
In The three cases MCB was old concept which works as
circuit breaker in case of overload/short circuit.
ELCB works as a circuit braker in case of only Earth
Leakage.
But RCCB is the latest concept which works as a circuit
breaker in case of Earth Leakage,Over Load/Shor circuit.

In between three devices RCCB is the most effective circuit
breaker which does multi works How ever other two devices
doesnt work the same........

when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)

1998

---

How impulse levels are calculated that for 11kV impulse is 75kvp, for 24kV impulse is 125kvp ?

2002

---

how electrical earthing maintenance done in industry?

1627

---

What is earth system using on the floater TN-S or TT. Iam not sure and what ICCP

1733

---

how to set relay setting? and example calculation...

2046

---

What is the purpose of using busbar mounting fuse?

2041

---

what is The difference between national electrical code and I.S.Code (electrical) and what is the value of NEC in electrical engineering field

2027

---

WHAT IS START TO INDUCTION MOTER IN STAR TO DELTA OF >5HP ?

1878

---

what are the sample questions asking to the test cunducting for electrical superwising lisence test?

2202

---

What do you mean by an instrument transformer?

1087

---

how to CHECK CT AND PT AT THE FAULT OCCUR IN GENERATOR RELAY PANEL .

2286

---

i have a 1500kVA transformer what is the kWH meter i need to use?

1792

---

What are the various types of rotor used in the alternators?

1073

---

How we can calculate the life of Lead acid battery

1787

---

Give some differences between open loop and closed loop?

1117

---