Answer Posted / ssnslm

Line losses are minimum in higher voltage level so we
choose 11 Kv for transmitting 10 Kw power.

What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?

2643

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We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?

10443

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sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

2173

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why and how voltage sharing in transformer, during magnetic balance test ?

2330

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For the requirement of a furnace of temperature range up to 1200 oC using silicon carbide rods, What is the required rate of transformer needed (please do it with all details)?

1943

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In a 3 phase 4-wire system. For a 3.5 core cable if all loads are single phase and balanced, what will be neutral current? will it be sum of all phase currents? Or it will be zero? And if loads are unbalanced what will be neutral current?

1707

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if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

1953

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How can we calculate the KVA rating of a Distribution transformer from its core details?

2053

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Could the power factor on electrical system can affect the registration of the kwhr meter or the CT/PT? 

1956

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Explain about 3 phase motor fault current calculation with examples?

2933

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What are the different types of controllers?

1076

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How many gap between finger contact in a.c.b. and v.cb.?

1279

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HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?

3942

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if sf6 gas low in gis what will happen

817

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What is the difference between rated and per unit in transformer?

2188

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