why does the magnetic balance tests at transformer?

0 Answers  

---

In batteries after completion of charging which colour gas is emitted from it?

2 Answers   Essar,

---

how does electrical train works and what type of motors are used to drive the train? which level of supply voltage is used?

22 Answers   Alstom, Infotech,

---

what is the working of vfd drives.

2 Answers  

---

If i want to build 230kv substation what are the equipments to be installed?

7 Answers  

---

---

Why Lead-Acid cell voltage is 2.1 volt, why we can not chenged it cell voltage by using extra row-material, only incries its AH.

1 Answers  

---

Is it required to do earthing in 2nd shop if earthed armoured cable is laid from 1st shop ?

0 Answers  

---

is there any current flows in our body?

4 Answers  

---

why the supply frequency in india is 50hz?

2 Answers  

---

can we use ps class in combination with protection class in differential protection and over current protection.

1 Answers  

---

what is the name of the oil is used in transformer?

5 Answers  

---

current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer

0 Answers  

---