what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?

0 Answers  

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what questions will be asked for 11/33KV licence interview APSEB hyderabad. Can any one share question and answers.

0 Answers  

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What is the name of the winding from which the supply is taken for load connections?

0 Answers  

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what is use of governer in diesle engine

1 Answers   Aricent,

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For 160kw motor what size of cable and material is needed.?

1 Answers  

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how can we run the induction motor at 9000 rpm ,by keeping frequency constant??

2 Answers  

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I did oil BDV test of 1600 KVA trafo 20KV/400V as per IEC 156. Result is 1) 58 KV 2) 58 KV 3)40 KV 4) 50 KV 5) 58 KV 6) 18 KV. Avr is 47 KV. Can we say oil is still ok even in the 6th test BDV is 18 KV ?

1 Answers  

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explain the meaning of harmonic resonance

0 Answers  

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How maesure earth neutral value & how much maximum value value required in between earth & neutral.

0 Answers   Bellsonica, NEC,

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How to connected to energy meter, pt, ct, ammeter, voltmeter and selector switch.

1 Answers   Omplas,

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what is the difference between relay, contactor

4 Answers   BRSS, Vishay Intertechnology,

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what is inverter and converter

7 Answers   Shrishti Power Technologies,

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