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.

explain the application of reciprocity theorom

0 Answers  

why induction motor always operate at lagging p.f.?

4 Answers  

why SCR use in power plant

1 Answers   Edison,

why scott connection is done why not two phases are directly picked at the output of 3 phase transformer??

1 Answers  

why we use end termination xlpe cable on ht kit

1 Answers   Al Bario,

WHY DOES NEUTRAL DO NOT CARRY EVEN THOUGH IT CARRIES RETURN CURRENT?

3 Answers  

We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?

0 Answers   Siemens,

what is the VA(Volt-amphere)? define with calculation?

0 Answers  

what is encoder & its use?

1 Answers   ACC,

What is reason to get a power factor nearly zero in resistive loads

2 Answers  

What is mean by voltage & current.

12 Answers  

What is the effect of pd controller on system performance?

0 Answers