Answer / prashant

refer BL THERAJA VOL2

Answer / samarjit gope

transformer working on mutual induction

Answer / t.k.

Trasformer workes on the law of faraday emf= -dǾ/dt or you
can say principle of maganitic induction.

Answer / zahid

transformer works on the principal of mutual induction.That
is a changing currrent n one coil induce an e.m.f in another
coil.

Answer / vasudeva rao

transformer mainly works on the mutual induction principle.
if primary gets excited with supply the winding itself
induces flux, these flux links with windings produces emf
in primary these primary flux links with secondary winding
and produces emf according to the mutual induction
principle.

why the supply power frequency is 50hz in india? where as it is 60hz in US?

4 Answers  

Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com

0 Answers  

How the surge voltage can be arrested in electronic devices

1 Answers  

is there interlocking between duty and standby chilled water pumps?

1 Answers  

what is vtg limit of earth and neutral at transformer side?

0 Answers   IOCL,

for 8 mva 33/11 kv transformer what will be the setting of differential relay on which it trip & what is the HF setting in this relay

2 Answers  

In Power transformer oil temperature or winding temperature will be high

3 Answers  

whydoes the p.f of diesel generator always be 0.8 explain how will you determine the shortcircuit capacity of network

1 Answers   Dalkia,

1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?

0 Answers  

What happen if we have run 415 V,50Hz designed motor at on 480V,60HZ

8 Answers  

why voltage ratings of xmission are in 11, 33,66kv and why not 11.5 ,16,19 or any other

2 Answers   HCL,

what is power plant?

2 Answers