Answer / yalelet

Base transceiver Station

what is the disadvantages of common earthing for AC and DC equipment? (i am talking about inverter control room and inverter duty transformer earthing is common...?)

0 Answers   TATA,

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why the vector group of excitation transformer is YD5(150 deg)how is this factor decided.

1 Answers  

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A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

0 Answers  

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which on of the transformer have more core losses and why? 1. Distribution Transformer 2. Power Transformer

5 Answers  

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what is corona effect

3 Answers  

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WHAT IS THE DIFFERENCE BETWEEN NUTREL AND EARTHING

10 Answers   Areva,

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When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?

0 Answers   UOM,

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why there is a humming noise in transformer

8 Answers   Bhel,

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Explain about technical and non technical losses in distribution system?

0 Answers  

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how does a current carrying conductor posess a magnetic field. what is the reason for the production of electro magnetic field around the conductor

2 Answers   Vizag Steel,

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how can a transformer test by megger?

1 Answers  

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What happen while we measure the Current in Rotor?

1 Answers  

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