in 132 kv transformer , in which range of transformer oil bdv required ? if it has around 50-55 , then how it was insulated the winding ?

3 Answers   Voltamp,

---

After synchronization with grid how to maintain the power factor in lagging or in leading? if lead of lag what is the problem?

3 Answers  

---

Why let through energy not considered for ACB breaker while cable sizing?

0 Answers  

---

what is difference between ac voltage and ac current

3 Answers   TATA,

---

What is the drawback of class b amplifier?

0 Answers  

---

---

what is the static device rather than xmer which work on same principle as xmer?

18 Answers   NTPC, Power Grid,

---

1.what is surge used in power system 2.what is switching used in power system 3.what is lightning used in power system

1 Answers   Areva,

---

why secondary of open delta pt (two element pt) centre tap is earth what happen when this earth is removed

1 Answers   Essar,

---

What is the current flow in 230v ac supply ? What is the current flow in 415v Ac supply ?

6 Answers  

---

If short circuit ratio is high is it bad or good for a machine then tell the reason...

0 Answers   Bhel,

---

what is the difference between metalhalide and mercury vapour lamp

1 Answers  

---

what is saturation kit?which use above 15 kw motors panel side.

0 Answers   Power Grid,

---