Answer / vijay kandpal

Actualy transformer transfer electric power, therefor its
rating is in KVA, and the power factor only due to load
whose rating in KW
So here losses in transformer either by core and copper does
not affect the power factor.

Answer / rashmi

copper loss depends on current & core loss depends on
voltage so total loss depends on volt amp product not on the
phase angle between voltage and current i.e independent of
load power factor

Answer / tarun aggarwal ymca

Core loss depends upon the voltage applied & ohmic losses depend upon the current flowing & none of these losses depend upon the power factor

actually it is a tricky question we can say that in Loaded transformer when power factor of load changes the current changes in transformer so will the ohmic (cu) loses and lly when current more lag the Voltage the magnetizing and demagnetizing of iron (cause of core lose) is always have effect on it more the current lag more late the flux will reach reach it maximum value in comparison with voltage


this Question require some cool thinking,all things are indirectly

for any other trciky answer just write tarun aggarwal ymca in google and get the ans :)

Answer / prabhakar jha

core loss is a variable loss in the core.due to alternating magnetic flux educed in core. copper loss is a constant loss its not depend in load & unload...

Answer / ali

core losess are depend on lamination of the core,and
freqency
copper losess are depend on the current flow in the
core,and frequency does not depend on power factor

How to run 1ph motor(230 VOLTS its full load amps is 4.5 ampa))with 480 volts main(we didn hav neutral)Thn we go for step down transformer.Our load 10 amps,so we conisder this amps in primary are secondary side

1 Answers  

What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor

0 Answers   Viva,

The electrical energy required to raise the tempreture of a given amount water is 200 kwh. If the heat losses are 20%, the energy required is?

0 Answers  

What is shutdown of electrical sub station?

0 Answers   UCEP Bangladesh,

active elements are those which are capable of

2 Answers  

why capacitor offer reactance to alternating current?

1 Answers   Electrical,

what is load despatching

0 Answers   NTPC,

is any body explain me why return current in three phase power system is less then in a red, yellow, blue phases??? as we know Ir+Iy+Ib=In then why nutral wire has less then phase current????

2 Answers   Bhel, DRIEMS,

why star point of motor shall not be grounded?

8 Answers  

cany anyone suggest electrical wesites for providing study materials?

0 Answers  

what is the maximum Load capasity in LV-Panel,MDB,SMDB & Final DB'S in Electrical disribution system?

2 Answers   Sterling,

what is function of reactor coil in Power factor correction panel

1 Answers