Whether the vacuum contactor requires Short circuit protection?If No,why?

0 Answers   Reliance,

---

Normally the starter used to reduce the starting current.but the dol starter do not it,so why we use it?

4 Answers  

---

how to calculate the transformer losses.

4 Answers   Cipla,

---

What is online and offline ups? how does it works?

0 Answers   Call Centre,

---

Explain Continuous and Discrete signals?

0 Answers   UOG,

---

Why the power generated in dams is complex power? Why the generators in dams cannot produce Real power directly (i.e power which has zero reactive part)?

0 Answers  

---

What is the reason for low voltage in houses?

19 Answers   Maytas,

---

coil is consist of

1 Answers   Enercon,

---

why DC motor body is plain cover but AC motor is different like finse?

2 Answers  

---

how gen. load increase or decrease ? what happen with gen on that time

2 Answers  

---

what is fault level of power system ?

2 Answers   Infosys,

---

what type of motor is used in fan

6 Answers  

---