Answer / sandeep

It is quite possible to operate two transformer in parallel, but condition is both must have same voltage. Here at one side of transformer there is voltage difference with the factor of (3)^1/3 and circulating current will flow at one side of the transformer leading to the increased ohmic losses and thereby efficiency decreases.

for testing busbar (33kv) hi-pot .whether we can apply DC r not.and what is the test volt for that .explain

4 Answers   WGPSN,

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when the time of backcharging the transformer three phases only enough or three phase with neutral is must.from these which one is the best one.

0 Answers  

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Name different types of fault and which instrument is used to measures earth,short,open cicuit fault?

6 Answers   NTPC, Vijai Electricals,

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aternator every parts and its working

0 Answers   adag,

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In scott connection why connect teaser transformer to 86.6% and main transformer to 50%..

1 Answers   Silicon,

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wat is syncronization . wat parameter will take for syncronization.

2 Answers   IIT,

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wd do u understand by stablity of ps?

2 Answers   IOCL,

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I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.

0 Answers   HCL, TCS,

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what exactly commisioning work does in electrical site work... LT side?..

0 Answers  

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How to check the efficiency of the generator , air compressors.

1 Answers   CIL,

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use of choke in APFC panels

2 Answers   Kemrock,

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In HI POT test what is reason for applying the AC VOLTS and DC VOLTS in different applications what is the nessesity for this ?

0 Answers  

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