I have connected 04nos. earthings to a transformer through 04nos. earthing pits seperately. 02nos. earthings are connected to T/F body, and 02nos. earthings are connected to T/F neutral.T/F capacity is 2000KVA, 11KV/415V. But after completing of 02 years successful operation ,we are facing following problems- 1. CT/PT occured blast one time 2. HT cable box occured blast two times 3. One body earthing strip and one neutral earthing strip of transformer are overlapping at some places. Whenever these two strips are pressed at overlapped points, they made spark. What is the reason of spark? Please explain the reason & rectification of above problems

5 Answers  

---

whats the formula for convert KVAR to FARADS

2 Answers  

---

what is meant by the phrase 'static load' in case of shorting in a generator excitation system?

0 Answers  

---

In 3phase supply Voltage will come around 370v then what will happen?(mean what will effect on electrical equipment like AC,UPS,Motors.)

1 Answers   NTPC,

---

what is the basic difference between fan and home motor if both have single phase induction motor?

4 Answers   Engineers India Limited,

---

What is OLTC in transformers and what is its function?

4 Answers  

---

How to define Kirchhoff current law and voltage law along with simply examples.

0 Answers  

---

1sq mm dc powr cable can carry how much dc currnt

0 Answers  

---

how the fan is switched off immediately switching off the switch?

2 Answers  

---

which type of harmonics minimum produce in 12 pulse rectiformer transformer? a)3rd b)5th c)7th d)11th

4 Answers   Power Grid, Powerica,

---

WHAT DO U MEAN BY THERMAL OVER LOAD RELAY& WHERE THEY ARE BUSED

4 Answers   L&T,

---

what is anti-pumping relay and the significance of it in a switcgear cb control system?

1 Answers  

---