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How to calculate the lighting load & power load requirement by knowing area of building/room. Is there any thumb rule?
3 19268Electricty is generated at around 16kV, then step up to 220kV for transmission then steped down to power transformers then DTs and then through the LT n/w it reaches the consumer end. At the consumer end 230V supply is required. So, why is electricity not generated directly at 230V and transmitted?
4 7778What is Load commutation and how it is done?Cite some example where this type of commutation is used
NTPC,
2 29221for 8 mva 33/11 kv transformer what will be the setting of differential relay on which it trip & what is the HF setting in this relay
2 4795electricity requires a medium to flow and it cannot flow through air. so how does lightning come to earth through air without any medium?
3 6156wat is the advantage of increse in frequency?how the powersupply range decreses as the frequency increses?like in america,it uses 110 ac and 60 hz?
4 6729Post New Electrical Engineering Questions
can i use ups power as a raw power for another ups
The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is
What is the range of the stator resistance of 3 phase induction motor?
Why generation voltage in thermal power plant is between 11kv to 33kv?
v/f drive basic princeple
As we use capacitor bank in 3ph ckt to improve PF, can we use capacitor in single ph domestric use, in house we have Fan,Mixer,electric cooker,iron,tube choke they also lag the system,because it is inductive load. if it is possible to improve PF of single ph system-- if yes- type of capacitor to be used,connection diagram, working in detail. if no-- list it.
Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?
Why we are use dol starter up to 10 hp
1)What is a Triode? What are its uses? 2) What is a Triac? 3) What is a Thyristor?
hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx
How can we findout the maximum efficiancy of Transformer? At which load?
what is difference between 5A and 100A CT constructional wise and operation?
why u r living from presentaly working.
Why are the laminations insulated from each other?
If more than rated DC voltage appears across trip coil of the breaker, what will happen? e.g. in 110V DC circuit system, if voltage across battery terminal showing 121 V
