in power station power measuring unit is KW but in
transformer is KVA why?

Answer Posted / srikanta

generally ratings of electrical machines are depends open losses and power factor.
in case of transformer copper loss depend on current and iron loss on voltage but independent of load power factor,hence it's rating is KVA rather than KW.

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What happens when ac supply is given as excitation voltage instead of dc supply

3128


Why water bubbles when D.C. Current is passed through it? Why not when A.C. Current is passed?

1663


oil cooled transformer

1759


what are the main faults that occur in stabilizers? How they corrected and resolved ? Types of stabilizers ?

1576


I am going to appear for the RRB Chennai junior Engineer online exam. Please send me the previous exams question papers (also solved) to my mail id: rrkhandhar@yahoo.com

1516






What are the three types of compensators?

632


What is core CT & it's function?

1618


wat system call?

1527


can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?

1486


Give the topology of current amplifier with current shunt feedback?

698


dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish

1895


WHICH SIZE A.B.CABLE IS USED FOR 11KV.

1747


what is RFCT and Insulgard Relay & It's function?

1690


Can you any one explain application of buccholz relay operation and pressure relif device operation of power transformer

1436


What is difference between YNyn0 and YNyn ??

1800