working principal of online ups
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In MEP Services what are parts of STP and what are there function?
in transfomer which type of oil is use!
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State the frequency for rc phase shift oscillator?
1. what is the power factor of a purely inductive load? 2. Which type of transformer connection is preferred in case of power supply transformers? 3. In power transformer usually which winding is closer to the core? 4. what will happen to the generated emf if the no. of poles of an alternator is increased?
is it necessarry to charge the battery of ups always??
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why are use star delta startor.
HOW MUCH KVA DG SET REQUIRED for charging 12v 4000 ah battery?
A 400KVA ,50HZ TRANSFORMER IS TO BE OPERATED AT 50HZ.THEN KVA RATING OF THE TRANSFORMER?.
If i switch on a transformer but with no load connected to the secondary path.Is the transformer will burn?
List the time domain specifications.
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