Why Earthin is not required in Xformer primary side when it is in Star / star?

2 Answers  

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What is fault clearing time for Current Limiting Moulded Case Circuit Breaker?.

0 Answers   DAE, Hindalco,

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WHY WE USE CABLE JUNCTION AFTER BETWEEN TANSMISSION LINE AND TRANSFORMER

1 Answers   L&T,

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why they charge more bill for low power factor rather than high power factor

2 Answers  

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how we calculate the short circuit capacity of the busbar in LV & HT?

0 Answers  

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Can we use 3 phase energy meter for measureing power in 2 phase 440 V phase circuit?

2 Answers  

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WORKING PRINCIPLE OF VACCUM CKT BREAKER ?

2 Answers  

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Why we use parllel operation of alternator

1 Answers  

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How to reduce power factor correction capacitors failure in an industrial environment with vsd and computers usage in the system

2 Answers   ABB,

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what is the need of capacitor in transmission lines?and how it works.

2 Answers   SCCL,

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what is the use of buchzloys relay?

2 Answers  

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our company have 750 kva oil transformer.still we have facing a problem that is when voltage is 11.5 kv coming from HT side then LT-side voltage is 420v or above at tape 1.please give me best solution to decrease the voltage

4 Answers   Gannon Dunkerley,

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