What are the reasons for AVR failure in LT DGsets ?

2 Answers  

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working principle of current sensing relay? how its work?

1 Answers  

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What will be the output of an alternator ,if the field current is single phase ac supply.

1 Answers   DRDO,

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Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

0 Answers  

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how to read idmt curva

0 Answers  

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Is there chopping current in resistive circuit

0 Answers  

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Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?

0 Answers  

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Do closed loops systems require manual input?

0 Answers   Ericsson,

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1.what type of oil used in tranformer. 2.oil vesocity. 3.oil gauge. 4.witch time oil filterring & how much temperature maintaned.

9 Answers   NTPC, Reliance,

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wht do u mean by load in circuit.wht dp u mean by inductive load

7 Answers   SGS,

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what are the oils used in transformers cooling? n which type transformer is used in power systems?

1 Answers  

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how to calculate bus-bar sizes? (copper bus-bars)

2 Answers  

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