When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?
1636Dear Sirs, I am a technical persons.In one of our Electrical Sub- Station, We have installed three numbers of 1250KVA ,11KV/0.415KV Transformer to feed the Factory load. We have found some abnormality. In one of our Transformers the leakeage current from transformer body to earth through earth continuity wire is almost 86 Amp but in other transformer it is (5-10)Amp. where the load current on three phase and neutral are respectively 1360Amp,1400Amp,1370 Amp & 176Amp. So please any technical person help me about the reasons of this situation and how I can rectify the fault. Moreover,I have measured the earth resistance of the Earth continuity wire which is less than 1 Ohm. Thanks Tapas Barua
3 4773I've heard that most of the substations are rated in multiples of 1.11 because of form factor.What is form factor?
3 4205How much pole motor can be desion for 415 volt ,50 hz.Power supply. in pratical condition . Prakash veer singh
5 6851hi friends iam collecting details about motor,generator & transformer so send some web links to about motor,generator & transformer ,please help me .i need your help.thank u
4 5135Can someone tell me how to calculate the size of a power cable? What are the factors involved in cable sizing?
5 6463Could anyone clarify my wondering. What is the difference between knee point voltage and saturation voltage of the CT. Is their any formula to calculate these values?
2 5429Post New Electrical Engineering Questions
A well system is when , no. of bus bar is less or more. Tell me the concept of it.
In case of generator when we consume more power produces by it why load on generator increase and starts sound more. and how it is adjusted..
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The 3 phase 400 hp 440 volt slip ring induction motor do not take one phase amps why ? The motor is running good condition
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why magnetising curve not start with zero voltage?
A car's starter motor draws a current of 100 A at 12,0 V when starting the engine. The mechanical power required to turn the engine is 960 W. At what rate is energy from the battery converted to non-mechanical forms of energy?
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What size cable (based on voltage drop) is required to supply a 40 A three phase boiler if the wiring system is 75V single insulated cables installed in non-metallic rigid conduit 56m from the main switchboard? Voltage drop in the consumer's mains is 8V.
model question paper for supervisor trainee
Why 30kw 40 hp 4 pole 3ph induction motor over heated?any steps on reduction in heat?
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Write a note on Treatment for electric shock.
