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If a line which is drawing approximatly 2100amps what should be earthing streep size(using galwanize streep)?
2 3844how make megger test for control cable like 12c x 1.5mm and what it apply voltage and test timing details.
22031.Why we use choke?If we use for high starting voltage then different type choke gives different voltage. Is it correct?
2 5629which of the folowing has negative temperature coefficient of resistance? a. mercury b. copper c. lead d. carbon
2 8431If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer
2709How we can recongnise the phase displacement of transformer connection between primary & scondary...plzzz explain it with example.........
BOC,
2508what is the use of commutator in dc motor if we supply ac ? commutator is used to convert ac to dc.and it is used to arrange the flux in unidirectional in case of dc supply. if we give ac as supply to dc motor what is the use of commutator?
2088Post New Electrical Engineering Questions
0.5,1,1.5,2.5,4.0.6.0,10,16 square mm electrical wires how much take maximum current in 50htz
What are the different types of controllers?
I am an American living in Vietnam and I have recently gotten a refrigerator from Japan and it is rated for 100 vac, but the power here is 220 so I bought a voltage stabilizer it has a 1 kva output rating. Can you please tell me what the amperage is? I'm confused and without a working fridge.
can anybody send the rrb chennai &rrb bopal question papers of 2006&2007.My exam is on 12 oct 2008.Its urgent
Why does the Solid state Rectifiers for 3-ph brake motors sometimes have 2 & sometimes 3 output terminals?
How to check the thermocouple is correctly connected to cable for K type? (i,e positive pole is connected to non magnetic conductor and negative pole is connected to magnetic conductor)
1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?
how can i determine the KVA/MVA rating of transformer precisely?? is there any standard test?????
WHY THE DIMENSION OF TWO SAME RATED MACHINE IS DIFFERENT ?
Why the cores of large transformers build up of circular cross section?
What is the use of iron core in a transformer?
How will be the single line diagram of series trip HT breaker? how it works?
Define end float in a motor?
why we are using earth pit in sub stations.?
Batteries used for electrical energy storage are a. Laclanche cells b. Edison cells c. Lead acid cells d.any of the above
