why we use battery source for current transformer polarity testing?

2 Answers  

---

what is the Transformer Impedence?How can calculate?

0 Answers  

---

hello friends this is krunal here.. i have applied for he officer train in hpcl electrical stream.. any one who have applied before for electrical stream please help me out.. post ur reply to my mail id: krunal_airforce@yahoo.com.. any tips, old questions for paper or any help will do.. plz help me.. your faithfully, Krunal Darji

0 Answers  

---

What is switch gear? How it is work ?

1 Answers   AbaQulusi Municipality, Lupin,

---

Pl. give me checklist for installation & commissioning of machine tool.

0 Answers  

---

what is the difference between a frequecy converter and an electric inverter?

2 Answers  

---

How much depth n width required for laying of 1X70 Sqmm Cable in Desert???

0 Answers   Alka Electromech, Aramco,

---

how does induction motors works.

1 Answers  

---

Why Phase to Neutral get spark

2 Answers  

---

role of shunt coil in circuit breakers

2 Answers  

---

what is humming noise and wha is the reason to develop humming noise in a mv pannel ?

2 Answers   HPL,

---

Why we are mostly using a single 3-phase transformer instead of three 1-phase transformers?

7 Answers  

---