Why we use duplex coil and hook switch in telephone system?

0 Answers  

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what is the meaning of powerfactor

6 Answers   NTP,

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what is dol starter

1 Answers  

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Which level of the Transformer oil got dielectric strengh? And why?

0 Answers   HSL,

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How do you reset circuit breaker?

1 Answers   Bhel, Kaveri Steels,

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A LT ckt i mean 440 volt flow of current100A.at this time HT current what will ON 11 KV &33 KV.plz givemy answer with example

2 Answers   Neptune,

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what is Over current, earth fault (O/C+E/F) ?

2 Answers  

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how can u say about the line by looking at the tower ? {voltage rating of the line}

3 Answers   BARC, London,

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what will happen if one of the phases from a 3-phase motor is disconnected?? stop/run at 2/3rd speed or run at same speed????

3 Answers  

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what happen if we give square wave instead of sine wave to the transformer

8 Answers  

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Which type of drive is advantageous AC or DC and why?

5 Answers  

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FOR 16/20 MVA 132/33 KV ONAN/ONAF TYPE TRANSFORMER IT IS DESIGNED FOR 16 MVA WITH ONAN CONDITION.IT BECOMES 20 MVA UNDER ONAF CONDITION.LOAD LOSS IS GUARANTEED FOR 65KW AT 20 MVA AND % IMPEDANCE 13.75. PLEASE TELL US AT WHAT LOAD LOSS AND % IMPEDANCE IT SHOULD BE DESIGNED FOR 16 MVA AND WHAT WILL BE ITS EFFICIENCY AT 20 MVA?

0 Answers  

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