Answer / k.prakashchandra

Now Freon 22 is being used and it will be discontinued after
the year 2013 as it is also found to be harmful to ozone layer.

Answer / arun

the sf6 gas is used during fult occur in a.c sub station

what is the principle of servo motor

2 Answers  

---

Why NGR is required for 11Kv geneartor in power plant

2 Answers   AB Inc, ABB,

---

Is it required to use Automatic transfer Switch in L&T panel board if we use AMF panel with DG set? How the single line diagram will be? Please forward the material to sreenu_207@yahoo.co.in

0 Answers   HAL,

---

1) why a dg set shows variation of power factor and load when synchronised with other dgs? 2)Why the load sharing is not become equal in all dgs?. 3)When a dg set will not run on auto start?

0 Answers  

---

How to checked frequency drive output voltages?

0 Answers  

---

Why armour HT XLPE power cable required to Earth?

1 Answers  

---

Pls tell me whether we can use EN3A material for shafts of Permanent magnet alternator.What will be the effect of magnetic and nonmagnetic material for shafts on magnetic properties of PM rotor .

0 Answers  

---

anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

0 Answers  

---

i work as a technician at a private company.. i used to take amp reading for certain appliances such as air con.. the problem is when i clamp the neutral, wire there is a current reading.. from my understanding for single phase system neutral should not have current unless if the circuit is not complete.. yet the air con still work

3 Answers  

---

Can u start a tube light without a starter?

8 Answers   Adani,

---

why power factor is lagging and leading(i.e -1to +1)

2 Answers  

---

how many units (kwh) are there if in one MW?

5 Answers  

---