Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?

0 Answers   WCC,

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When Neutral exceeds or equals the phase current in both single phase * three phase system?

1 Answers  

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i wasted one year for the job after completed my btech what can i say about 1year time in interview

0 Answers   Infotech,

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in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply

0 Answers  

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what relation between transmission line & communication line?

1 Answers   NTPC,

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what are the accessories need to be added while doing estimation for the following: 1.MCCB 2.MCB 3.ACB

0 Answers  

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On what basis primary and secondary of a transformer is chosen?

2 Answers  

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What's the differs between voltage & current & emf.

1 Answers   CTS, NTPC, TCS,

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Basic motor transformer generator

0 Answers   eCentric Solutions,

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draw tube light circuit

0 Answers   Badve, KPTL,

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For a 50MVA (138/69/13.8 KV) transformer, what would be the maximum demand in order not to exceed 80% of its operating capacity.

2 Answers  

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Is there any question in the name of Static Switch in UPS??

0 Answers  

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