what will happen if we give a dc supply to a transformer.?
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how can I calculate charging current of cable/overhead conductor? what is roll of voltage in it ?
Earth leakage relay basic knowledge principle
1.how many types of relays? 2.difference between ATS& STS?
Whether 3 phase induction motorwith 100 hp capacity , Amp 160 for which sensitive earth fault relay , type CTUM 15 can be used?
is the value of inductance depends upon the evalue of thitha in doubly excited machine?
What are the types of instrument transformer?
Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?
The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?
what is the difference between transformer,converter and transducer
what is the difference between megger and earth resister ??
How many types of interlocking use in screw type air compressor,make-Kaser(BSD MODEL)?
What is phenomenon of electromagnetic induction and how it works?
What does quality factor depend on in resonance?
I need bhel previous year quetion papers for electrical engineering department.I searched but i could not find out
Why control of DC motor is simpler?