Answer / vasu

transformer works on mutual induction

Answer / hardworker

A transformer works on the principle of Faraday's law of
electromagnetic Induction.A transformer consists of 2
coils;a primary winding to which supply is given & a
secondary winding to which load is connected.
When supply is given to the primary coil,an alternating
current flows through the coil.This alternating current
sets up an alternating flux in the core which links the
primary as well as secondary winding.Due to rate of change
of flux,an emf is induced in both the coils.The emf induced
in the primary is called Self induced emf & the emf induced
in the secondary winding is the mutual induced emf.

Answer / padmanabh thakur (geu)

on Faraday law of electromagnetic induction

Answer / niranajn

on the principle of electromagnetic induction

Answer / kapil bahadure

the trasformer work on the priciple of mutul induction.
when pramory connect to the suplly then magnetic flux
produced & cut with secodory of trasformer & iduced emf in
it.

why pure sine wave inverter used for desktop ?

1 Answers  

What will be the voltage regulation of a full load and 0.80 power factor lagging load transformer when a two winding single phase transformer has a voltage regulation of 4.5% at full load and unity power factor?

0 Answers   HPCL,

If the kvar rating of capacitor bank is 600 kvar at 525V then what it's rating at 415v.

2 Answers  

FOR ELECTRICAL TRANSMISSION TOWER WHAT SHOULD BE THE MINIMUM HEIGHT FROM THE GROUND? AND WHAT SHOULD BE THE DISTANCE BETWEEN THE TWO CONDUCTOR?

1 Answers  

What is the permissible sound level for 1000kva DG set and how the sound level is calculated.

1 Answers  

what is the principle of generator , induction motor,d.c motor

1 Answers  

I find that underground strip-armoiured,4core,LT PVC cables in an earthed power distribution sytem are occasionly found in charred condition-with no trace of it except ash. Is this because of no proper earth connection/continuity (giving rising to high armour resistance)in the joint enroute or because of insufficient capability (again due to high armour resistance)of cable-armour to carry fault current or due to neglected /unprotected overloading of the cable or due to high armour currents caused by power thefts where only phase(s) are unauthorisely tapped & at the point of poer consumption earth terminal is established by burring underground a not so good earthing rod (or using an underground water pipe for the purpose)

1 Answers  

why two windings are using in single phase AC motor

3 Answers  

(1)For 3 No 1500 KVA transformer require on one single bus bar or need to be section through bus coupler means upto 3MVA.(2) 22KV Net work system as ring, How maney I/C required or 0ne I/C and one O/G.(3) What should be rating of VCB for 22 KV line.(4)Electrical/mechanical inter lock, why we need.

0 Answers  

In any Industry, Which voltage level either 3.3kV or 6.6KV to be chosen? Then I would like to know ,Is there any cost consideration or Rating of motor?

5 Answers  

For a Potential Transformer(PT), the primary neutral terminal must be grounded before energization. Why....? What will be heppend if we energize the PT without grounded the primary neutral point? Why..........?

2 Answers  

How we can calculate what type of supply we need for an example sometimes we take 11 KV and sometime 33KV from EB ?

4 Answers