comparision between mcb,mccb,elcb,flcb,elcb in details

0 Answers   ABB,

---

When induction motor is started,we see all other electrial appliances connected on the same supply are dimmed out for some moment why?

4 Answers  

---

how to testing the AC 3 phase motor? and what is the test procedure & kits required for testing?

3 Answers  

---

what is two wattmeter test

2 Answers   Jindal,

---

Why 30°phase shift occur in star-delta transformer between primary and secondary?

1 Answers  

---

Hi I'm doing my MBA(3rd semester).I applied for the post of ET conducted by BHEL the last year.I cleared the written and lost in personal interview.Again I wrote the exam this time and cleared the written n yet to take the personal interview.Shall I disclose in the interview about my studies.What shall i say if they ask about my change from studies to job

0 Answers   Bhel,

---

what is static excitation and dynamic excitation of synchronous generator,scr excitation is a brush or brushless excitation?

6 Answers  

---

Why not LED burn after showing alarm,as Alarm volt is 11- 13,But LED is of3 volt,why it isnt Burn??

1 Answers  

---

I have a 5KVA UPS. Total load to be connected almost 3KW. Ordering a battery pack with capacity of 1920VAh. How long will the backup time be?

1 Answers  

---

what is range ACB

11 Answers  

---

what is the use of ballast in tube

2 Answers  

---

what are the types of transformers

59 Answers  

---