Answer / chandan kumar

hysterisis losses increases bcoz high grade steel is solenly
used in core material to reduce hysterisis losses while
laminated core is used to reduce eddy current losses.and
copper losses occur due to resistences of primary and
secondary windings....

Answer / somu0507

The main purpose of iron core is to provide low reluctance path.The copper has much lower permeability(approximately equal to 1) than iron and has comparatively higher conductivity. The following effects will occur if copper is used instead of Iron (for same supply of voltage and frequency):
1-It can be seen from voltage equation of the transformer that if supply voltage and frequency is constant then require flux is constant. to produce same flux, very high magnatising current will be required (as copper has very high reluctance than iron) which will result in VERY HIGH COPPER LOSSES in primary winding. Consequently the primary winding may get burn.
2- As the copper has higher conductivity HIGHER EDDY CURRENT LOSSES will occur.
2- Being a non magnetic material, Copper has very narrow Hysteresis loop, hence HYSTERESIS LOSSES WILL BE LESS.

Answer / anil kumar

the main purpose of core is to proviod low resis path .to that steel is used. if we use copper,hence large amont of eddy currets will produce causes short circuit.hence eddy loss plays main role.

Answer / saikrishna

if transformer core is made up of copper the conductivity of
copper will be more and hence eddy currents will flow
through core therefore eddy current losses will increases.

Answer / mangal singh

copper losses..........

what will happen if dc motor given ac supply

11 Answers   Mahaveer,

What happens when the polarity changes in CT? Explain briefly?

8 Answers  

in 11kv/400v transformer when only one phase of 11kv supply fails what happens to sec voltage and why

6 Answers  

Why Indian Electricity frequency desined 50 Cycles as developed countrys are using high frequency with low voltage

1 Answers  

why voltage rating not mention at HPSV or HPMV lamps?

2 Answers   OPS,

can any tell me how to do wiring connection in L&T 3ph 4wire E301 CT operated energy meter, what is P1,P2,P3,P0. M1,M2,M3, L1,L2,L3.

2 Answers   Bhartiya International,

Can we use a Potential Transformer for Auxilliary Power supply( Spring charge Motor, Lighting etc)?

1 Answers  

What mean by MLTP

0 Answers   Machino,

CAN WE GENERATE AC WITHOUT DC EXCITATION?

1 Answers  

i have been tasked with a design of protection, metering and control(PMC) relay panel extension to accommodate all PMC relays.There is an already existing panel where this one will be built.What are the design aspects for this kind of project? thank you.

0 Answers  

How to measure size of cable on a given load

0 Answers   Green India Engineering Solutions,

how can we measure 220kv or more than these voltages ...?and also how can we conform whether we r getting 220kv from generating stations throuth the h v transmission lines?

1 Answers