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In DC current-excitation to transformer, why it sucks more current? Eventhough there is no power transfer between primary and secondary? R is very low so it should suck less current only na thn y its current increases?
2 5559inductance and capacitance may result in periodic reversals of the direction of energy flow,how???
1 3382For two systems transmitting the same amount of real power, the system with the lower power factor will have higher circulating currents due to energy that returns to the source from energy storage in the load.???
Bhel,
1967Post New Electrical Engineering Questions
Define what is difference between fuse and breaker?
I would like to know that the fault curretn at base load and at 10% generation will be same? Fault level of BUS remain same with different generation?
How will you utilise electrical power? You can start from the generating station.
Could you measure voltage in series?
why does rotor rotets?
When MICC cables used ?
Why 15Amp. MCB is suitable to carry load of 1.5Ton Ac please Explain?
What kind of maintenance is conducted for Transformer
what is ramping rate of generator
What is the capacity of the Fastners 12mm?
if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.
what is Insulation monitoring device. where it is used? (in switchgear room or control panel or in field equipment)
why can we use cosine wave instead of sine in ac supply as both have same rms vale and ripple factor
BSNL TTA EXAM QUESTION
What do you mean by dependent and independent voltage sources?
