how we can varying the speed of dc motor ?

6 Answers  

---

What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

6 Answers  

---

hello everybody...i m an Elelctrical Engineering student.. i m in final year.. i m attending IOCL interview on 2nd aug. kindly let me know on wat subjects to concentrate more...any body who has attended the interview can help... others can also post their views... thankyou.

3 Answers  

---

Can we pass 11kv power in 1.1kV voltage grade cable.If not why?.

3 Answers  

---

in electrical fire which group fier Extinguisher as used

6 Answers  

---

When can we take Neutral as common neutral link?

0 Answers  

---

Give some example of fault limiting devices?

0 Answers  

---

What is auto reclose system in Circuit breakers??

4 Answers  

---

Transformer Secondary maximum current (max. load)

3 Answers  

---

What is the diff. between two phase & three phase supply.

7 Answers   Crompton Greaves,

---

In 400KV Switchyard, we have used Circuit Breaker With PIR, what is the significance of PIR & why they'r used?

2 Answers  

---

hi pot test principal

1 Answers   NTPC,

---