what is the mean of short circuuit current ( for ex. 50KA)?

2 Answers   Weltech Engineering,

---

Why use only DC supply to charge batteries why not AC Supply??

3 Answers   APC, Emerson,

---

How the size of transformer decreases if we increases the frequency?

2 Answers  

---

Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.

0 Answers  

---

why vector group is ued

2 Answers  

---

---

how to select fuse in any circuit? if with fomula ?and examples also

1 Answers  

---

Stepwise process of Northern grid failure in 2012!? (dont copy paste from wikipedia)

1 Answers   Rashtriya Ispat Nigam Limited RINL,

---

how you will decide the distance between the power transformer and its fencing

0 Answers  

---

1. what is the power factor of a purely inductive load? (i) Zero (ii) Lagging (iii)Leading (iv) Unity 2. which type of transformer connection is preferred in case of power supply transformer? (i) Star/Star (ii) Delta/Delta (iii) Star/Delta (iv) Zig Zag/Star

2 Answers  

---

What is the thumb rule for calculating the P.F correction Capacitor?? Say for 100 hp motor how much micro farad Capacitor is needed .... Thumb rule so quick answer wanted

9 Answers   Bhel, Dubai Group,

---

what do you know about SERVOMOTOR

4 Answers  

---

Differentiate between Zero and Negative sequence current

0 Answers  

---