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.

What is maximum rating of transformer ?

2 Answers  

hi all i like to know vat is power plot in control systems also i want to know abt latest trends in electrical & electronics

0 Answers  

How magnetic balance test of single phase transformer is done,Especially in ESP transformer rectifier set.

2 Answers   Bhel,

what's the requirement of Dy11d0 connection of 3 phase transformer?what's use of it?

0 Answers   Thermal Systems,

A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

0 Answers  

why we use sinosidal voltage / current instead of others in system?

0 Answers  

How to check the cable fault / hv test of transformer cable.

0 Answers   KSEB, L&T, Siemens,

How does the slip regulator works as a startor

0 Answers  

advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor

0 Answers  

Why used in layer by layer charcoal and salt used in earth pits.

11 Answers   CESC, HP,

How can we calculate the current if we have load in KVA and if the load in KW then what formula will be use for calculating the current. please give both the formula for calculating the current.

3 Answers  

Hi frnds :) plz tell me that i have 100 KVA 3 phase generator so by thumb rule 100*1.4 = 144 amps and generaly we can operate at 80% load...so it will 144*0.8 =112 amps.... so now i m confused about single phase load.....if we use that generator only for single phase the that 112 amps is total single phase load or i can give 112 amps at red 112 amps at yellow and 112 amps at blue.... i mean that total single phase load that 100 KVA generator will take is 112+112+112=336 amp ??

2 Answers   FWO,