Is there a standard depth of gravel fill in Substation Switchyard? Please give a design/drawing. Thank you.

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When can we take Neutral as common neutral link?

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What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?

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defination of lines

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In A.C systems, fuse is placed in phase-in order to disconnect the circuit during faulty condition. But, what is the reason for putting "LINK" in neutral istead of connecting through (same) wire.

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Connection diagram for KW meter and  Kva meter

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Why 60Hz frequency is used in America what are all the benifits?

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why rating in KVA and KVAR?

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what happens when we give supply to the secondary of a transformer ?? for example 415v(pri)/110v(sec)

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i want the formula of total eletical knowledgement

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why would the rotor rotate at sub synchronous speed against the direction of rotating flux when d rotor of 3 phase IM is connected to 3 phase balanced supply and the stator windings are shortcircuited ??

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Generally transformers has delta primary and star secondary. But in some transformer i saw Star primary and delta secondary. what is the reason for chosing like this?

2 Answers  

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