What is servo motor and what are different types of servo motor

0 Answers   BARC, Vipul,

---

What is difference between miniture circuit breaker and module case circuit breaker up to 63Amp.

7 Answers   MSPL,

---

If a three phased motor or not working phased change on poles so how to find which one red yallow & blue

1 Answers  

---

In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???

0 Answers   RRB,

---

how to make an earthing certificate

0 Answers  

---

which is better VCB or ACB and why?

7 Answers  

---

Basic philosophy of applying 3P tripping for uptill 132KV switchyards & for 132KV & above 1P/3P tripping is used.

1 Answers   L&T,

---

Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?

3 Answers   Bhel,

---

How many types of earths are there?What is the maximum ohms of earthfit?

3 Answers  

---

What will be the impact on motor performance if a LT motor is rewound with changed motor winding data as given below:- Original winding data: total 04 wires = 02 wires of 17 SWG + 02 wires of 16.5 SWG. Changed Winding data: total 03 wires of 15.5 SWG wire size Motor rating: 160KW, 740RPM, 415V, ID FAN application. Normal Running Current = 95% of FL Current.

0 Answers   NFL,

---

why we cannot protect 100% winding of an alternator by using differential protection?

0 Answers  

---

what power factor should we maintain to get maximum benefits our organisation load is 10 MW? is it best to maintain the PF at .96 rather than Unity to save electricity bill?

1 Answers  

---