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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 19491Electricty 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 7990What is Load commutation and how it is done?Cite some example where this type of commutation is used
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2 29378for 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 4910electricity requires a medium to flow and it cannot flow through air. so how does lightning come to earth through air without any medium?
3 6351wat 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 6911Post New Electrical Engineering Questions
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how to avoid electrical shock how capacitor store charges wat are the speed control of induction motors state faradays law flemings left hand rule what is rotary converter wat is transmission and distribution what are the sources of energy abrevation of acb,vcb,sf6,igbt what is output equation of transformer which test copper iron and iron loss are calculated what is eddy current draw a single line diagram (10 marks) draw direct online starter(10 marks)
Draw a block diagramof Three UPS systems connected in Parallel mode?
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ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH
What was your role in the silicon evaluation/product ramp? What tools did you use?
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Electrical Engineering
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What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
How to calculate VCB rating for 33KV ,25 MW Power line?
