Tell me the reason of connecting domestic t/f primary in star or delta,and also secondary side.

0 Answers  

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what is the main function of lbb protection

3 Answers  

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How can calculate ups battery back up time?

25 Answers   Cisco, Cooper, Pronet, Wipro,

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what is corona ?

3 Answers  

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What is bus-bar?

1 Answers  

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Why we Do not connect the windings of the motor in delta? & what would happen if we do that? I mean the winding themselves not the three lines that are coming to the motor?

1 Answers  

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how can calculated the rating of the 11 KV transformer?

6 Answers   NBCC,

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I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

0 Answers  

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WHAT IS AIR GAP VALUE IN MM FOR A 11KV BUSHING OF 11KV/440V DISTRIBUTION TRANSFORMER. AND AIR GAP VALUE OF 25 KV BUSHING OF AT TRANSFORMER OF 25 KV TRACTION. WHAT IS THE CALCULATION FOR THE AIR GAP PERMITTED FOR BUSHINGS AT DIFFERENT VOLTAGES.

0 Answers  

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How much CTs are required to measure th curent in DOL starting of motor?PLs explain.

1 Answers  

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what is the use of power factor ? where its applicable ?

4 Answers  

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why we are used D.c. voltage in L.T.side or controling side.we can use UPS also ,in place d.c. voltage

5 Answers   ABB,

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