Answer / santosh mulay

For HT tran. high winding & oil temp. alarm with triping
portection must be there. And Buchholz relay triping also
necessary. Addition to that Over current, earth fault realy
must be there.

Answer / nagesh.patwari

HT
Overvtg/undervtg, Earth fault,Surge protection, differential protection

LT
Undervtg, REF protection,Buccholz relay, sudden pressure relay, Overcurrent protection.

Answer / krishna

If the transformer is below 1000KVA, for the HT side
protection AB switch and HG Fuse must be used and for the LT
side protection ACB/OCB must be used.
If the transformer is above 1000KVA, for the HT side
protection VCB/ACB must be used and for the LT side
protection ACB/OCB must be used.

Answer / neeraj dubey

on ht side Drop out fuse used for overhead line and lt sie
HRC fuse with fsp ( Fuse section Pillar)

Diagram on interconnectivity of 11kv transformer with RMU (i.e, one incoming and two outgoing or two incoming and one outgoing)

0 Answers  

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why use phase displacement in transformer.and effect of phase displacement on transformer

0 Answers   IOCL, ONGC,

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what is the difference between CVT & PT?

2 Answers  

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what is ferranti effect?

3 Answers  

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what is disadvantages of high power factor

4 Answers  

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1.what is the contact resistace of CB ? 2.radioactivity should be mesured with---------?

3 Answers   Power Grid,

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Q. calculate the value of the resistor to be connected in series with a 100W; 230V lamp so that the wattage of the lamp is reduced to 35W

8 Answers  

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what relation between transmission line & communication line?

1 Answers   NTPC,

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Make a list observation on Transformer?

0 Answers   HSL,

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Why we need to carry out knee point voltage test of current transformer ?

1 Answers   Power Grid,

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WHAT IS FORMULA TO KNOW TO BACKUP TIME OF POWER PLANT 48V/50AMP DELTA POWER PLANT

1 Answers  

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In short transmission line,why does the receiving end voltage is less than sending end voltage?

4 Answers  

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