Answer Posted / vinay gupta

electrical current is actually the flow of free electrons
through a conductor when a potential difference is applied
on it. The electric field developed across the conductor
makes the electon to flow in a definite direction.

what is the most permissible winding temp when we conducting a generator load test?(condition no load)

1662

---

solar energy light efficiency & disadvantages?

2058

---

what is an unbalance in acircuit? in a three phase 3wire circuit how an unbalance will come? in a three phase four wire system how an un balance is coming?

1775

---

Why saturation region slowly shifted in the left side?

1804

---

WHAT IS IM (INDEX OF MOUNTING )IN MOTORS

1982

---

what is parellel power factor correction?

4289

---

what things to be considered when designing UPS

1725

---

how we can do the insulation on secondary of ct explain and so that tan delta will within limit

1874

---

What are the advantages of the three-phase motor over single phase motor?

996

---

A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram

2767

---

what sort of general awareness questions are asked in o.n.g.c entrance exam?????????????????

4585

---

What does quality factor depend on in resonance?

1032

---

Please, if 1kw is equal to 1.25kva; how then do I know how many kva in 7.5kw?

1578

---

why dc is used in control circuits for MV & LV switchgeras instead of ac

1899

---

Formulae for calculating the transmission line losses for different voltage levels

2109

---