what is difference between single phase and three phase.

2 Answers   Birla,

---

is it necessarry to charge the battery of ups always??

3 Answers  

---

How can we prevent the (Home)inverter supply flow to the main supply line?

1 Answers   L&T,

---

why we used to transmitt the power at higher voltage why not at lower voltage

8 Answers  

---

i have applied for junior engineer 2 c&w for Guwahati RRB please send me last five year question paper

0 Answers  

---

why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?

0 Answers  

---

What is different between Circuit breaker and Isolater?

0 Answers  

---

what is The difference between national electrical code and I.S.Code (electrical) and what is the value of NEC in electrical engineering field

0 Answers  

---

why the three phase transformer's star point does not sparks or seperated? while we often see that two phases touches each other it sparks and ocationaly conductor breakes out.

4 Answers  

---

Our transformer capacity is 500kva & voltage ratio is 11kv/433v step down tf.Now i need to know if my input voltage is 10500v and what would be the secondary side voltage i.e output voltage ?

3 Answers   Helma,

---

Can we use 11kv Trivector Metre or Energy metre instead 33kv Metre at 33kv Over Head Line metering purpose?

5 Answers   Bhel,

---

A 200W,230V lamp is connected across 115V supply.The lamp will draw power?

6 Answers   SJVN, TCS,

---