can we replace Dyn11 transformer to Yy0 transformer and what is the difference between the two type

1 Answers   Arab Contractors,

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Which motor will you choose which can operate in both lagging as well as leading power factors?

0 Answers   HPCL,

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why transformers are put with supply for 24 hours before giving supplying to a locality?

2 Answers  

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hi guys please tell me the procedure for mesuring the coil resistance of 3ph induction motor?

0 Answers  

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16kv transformeris stolen in my village.and department is not taking action.then what should i do.any shortcut .please help any idea

1 Answers  

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why neutral grounding transformer is used for generator and why it is not used for transformers?

1 Answers   UPCL,

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At 765Kv, I have seen the use of PT at line side for metering and CVT for protection, although as far as my knowledge is concern, PT at this voltage level will have huge loss and more cost as compared to CVT as CVT can also perform same function of Protection and Metering? So my question is why use PT and not CVT for metering and protection in order to reduce the cost.

1 Answers  

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what is the similarity and difference between ups and inverter?

4 Answers   GMR,

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What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.

0 Answers  

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how the high voltages are produced?and what it causes?

4 Answers  

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Do I need a special Transformer to put 240 VAC 3 phase into it and and get 480 VAC 3 phase out of it to run a machine? Or, do I just use an ordinary step down transformer and step up the voltage? Thanks

2 Answers  

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i need 24v dc from 230v ac supply how we can getit ? what are the devices &its rating requied for that ? plzz i need answer urgently .thank u

3 Answers  

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