What is turn ratio of a transformer?

0 Answers  

---

what is the difference between ground and neutral?

2 Answers  

---

hi frnds can any one help me ? plz send me placement paper of IOCL of Electrical streem .... plz send ....its urgent....

0 Answers  

---

Why does The speed of motor used in elevator remain constant irrespective of load??

1 Answers  

---

How the cable size for a motor is decided

14 Answers   NTPC,

---

We operate a 10 Mw facility and we have been experiencing several trips due to fluctuations on the MVAR? We have checked all issues related to the AVR and we have found all OK? Can anyone help us? The grid voltage, internal voltage, all regular parameters look ok. MVAR fluctuate and there it goes the unit? What could be happening? Thanks!

5 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 neutral wire don't shock?

9 Answers  

---

What are the types of transformers according to the arrangement of iron cores?

0 Answers  

---

A group of machines (wind turbines) connected with 33KV feeder and each machines are having individual VCB. The 33KV feeder connected with 110KV/33KV substation. The 33KV feeder tripped by over current at Substation and fault recorded at Substation as OC-R&Y phase. Same time the group of machines VCB tripped by over voltage, the fault recorded voltage was above 66KV by numerical Under/Over voltage relay. While grid drop time, this much of voltage hike is possible?

1 Answers  

---

How does ELCB work when exist earth foult? and How does RCCB work when exist earth foult?

1 Answers  

---

how many types of ACB breakers, describe briefly..?

0 Answers  

---