Myself completed B.Tech ECE in private university but i am working as an testing and commissioning engineer in electrical field whether i am eligibility to apply electrical licence.

1 Answers  

---

What is an electric arc?

3 Answers  

---

Any one can explain if there is any harm from humming noise heard from air circuit breaker : we have 415 switch board having two incomers from transformers 3.3KV/415V , when bus coupler closed, and open one ACB incomer to work in one of the transformers, the current started hunting around 50 Amps, and heard humming noise from the air circuit breaker, although the load current was only 1200 amps while the ACB capacity is 2500 Amps, and the transformer 1600 KVA. The same didn't happen when taken the other transformer offline. Why this humming noise and current fluctuation? is there any implication or danger, bearing in mind that we just returned everything back to normal and stopped the maintenance of the transformer. Shall we go ahead and ignore this noise?

6 Answers  

---

plz tell me about detailof induction motor Slip

2 Answers  

---

1500Ah VRLA battery,if its weight is designed 125kg during maufacturing its weight is reduced to 85kgs,What will be impact on AH capacity,life & economy?

0 Answers   Bajaj,

---

---

How can i modify the design of 3 phase induction motor to be as 3 phase synchronous motor??

2 Answers  

---

What is the difference between a 3 winding and 2 winding Potential Transformer

0 Answers   Engineers India,

---

Difference between mcband isolator

1 Answers  

---

Application wise, where we should use AC motors and where we should DC motors?

1 Answers   Nespak,

---

HOW TO CALCULATE THE SIZE OF CABLE COPPER & ALUMINIUM

11 Answers   Amman Try, Prestige,

---

Pls mail me utility & Dg related question with answer

0 Answers  

---

method to check earthing

5 Answers   ECC,

---