Answer / mohd arif

just to produdce constant magnetic field. since the
alternator does not generates emf by applying the ac supply.

Answer / guest

excitation

what is the difference between rectifier and converter and commudator?

0 Answers  

---

what is the contact resistance of sf6 circuit breaker??

2 Answers  

---

What could be the problem if two power transformers trip on stand by earth fault at same time

1 Answers  

---

is there any chance to get shock from the transformer oil at the time of maintenance due to its dielectric property. . ?

6 Answers   Bhel,

---

- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

0 Answers  

---

list of tests to be carried out at manufacturers end while purchasing a step up transformer of 11kv to 66kv ,2MVa Capacity.

0 Answers  

---

what is the difference between power transformer & distribution transformer and what are their ratings respectively?

4 Answers  

---

if There is Short circuit in Power Transformer, what will happened to Buchholz Relay.?? How Buchholz Relay will respond.??

2 Answers  

---

i have three phase 25kva transformer but there is two phase line how can i connect to the two phase line?

2 Answers  

---

HOW TO CALCULATE THE DOMESTIC POWER FACTOR?

3 Answers  

---

what kind of battery is used in laptops

4 Answers   Pepsi,

---

Apparent power is expressed as V * I(Conjugate). Why not in V * I ?

0 Answers  

---