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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?
2114Dear 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 6032I've heard that most of the substations are rated in multiples of 1.11 because of form factor.What is form factor?
3 5586How much pole motor can be desion for 415 volt ,50 hz.Power supply. in pratical condition . Prakash veer singh
5 8647hi 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 6747Can someone tell me how to calculate the size of a power cable? What are the factors involved in cable sizing?
5 8222Could 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 6651Post New Electrical Engineering Questions
what is errection pcbs?
kindly send me 11KV MV motor differential protection procedure by primary injection method.
What are the types of excitation system?
Why sometime AVR and sometime Booster coil is used in Alternator? what is the diferance between AVR & Booster coil due to which they are selected
what is transistors comprised of?
when we have to purchase the transformer by own i.e how much load will preferred HT connection?
HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com
The Q-facr o of a coil given as wL/R. what will be shape of Q versus frequency graph.
hi friend i am going too attend for hpcl in this month please help me by sending written test question papers i am in the stream of E.E.E
what is meant by moulded case circuit breaker ?
1)Explain why the cradle guard is used on railway crossing in overhead line construction?
In HI POT test what is reason for applying the AC VOLTS and DC VOLTS in different applications what is the nessesity for this ?
what is the differences between microprocessor and general purpose computer
What is capacitance?
What is miller crystal oscillator? Explain its operation?
