what is need of air gap in expansion section in busbar?

3 Answers  

---

how we can check new PT ? without name plate.

1 Answers   Indo Power Projects,

---

why is a earth pit 10 ft usually? And, what should be the distance betweeen two earth pit?

4 Answers  

---

Why Two Transformers aside shoud be supperated by concreted wall?

5 Answers  

---

How i can identify the 220V and 110V power supply equipment? No tag number.

4 Answers  

---

cause of failure of transformer bushes

3 Answers  

---

1.what is difference between ATS & STS main use. 2.what is difference between ACB& VCB With symobles,and main partes, manimum range. 3.How many types of relays and main function.

0 Answers   Visa,

---

why indian power system having 11.22,33 KV ???

6 Answers   Titan,

---

what is soft starter?working principle?where it can use?

3 Answers  

---

High speed earth switch operation with diagram

0 Answers   KSEB, L&T, Sanden Vikas, Siemens,

---

If we need4× 50mm sq cable but it's not available so we can pull 4×25mm sq 2cables

0 Answers   ABC,

---

1600kva capacity Transformers how the bucholz relay,Oil temperature,winding,surge relay relays setting are to be done

0 Answers  

---