Answer / rajat sahu

STACKING FACTOR IS USED IN TRANSFORMER DESIGN.IT IS THE
LAMINATION BEETWEEN TWO CORE.IF STACKING FACTOR IS 1 THEN
NO LAMINATION BETWEEN CORE.so stacking factor is alway less
then 1.

Why CT secondary should not be kept open?

7 Answers   Anna University,

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We are planning to synchronized DG's with our captive plant in the event of black start of plant, but before sync we checked voltage of DG with our plant voltage and it varies from 5 V to 450 V. So in this condition how we can sync DG with plant ?

0 Answers  

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while doing high voltage test on 11kv/433 distribution transformer why we only give 28 kv on hv side and 3kv on lv side for power transformers what is the value what factors it depends

0 Answers   Enercon,

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HOW DO I CALCULATE THE SETTINGS FOR THE DIFFERENTIAL PROTECTION OF A 12kV/6.6kV, 6MVA,DYN11 XMER WITH PRIMARY SIDE CTR 400/1 AND SEC SIDE CTR 600/1?

0 Answers   Adhunik,

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WHY IS THE EARTH FAULT CURRENT ALWAYS LESS THAN THE NORMAL CURRENT??

0 Answers   Teil,

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Determine the MVA rating of the power transformer given that 110/66 kV,1000 Amps. Folks how can i calculate the MVA rating with this Data??Plz Help........

1 Answers  

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Match the following a)(X'+Y') b)X'Y' C)XY 1)NAND 2)NOR 3)Carry

0 Answers  

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What should be the conservator minimum oil level required in 2 mva transformer

2 Answers   JSW,

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Whether the vacuum contactor requires Short circuit protection?If No,why?

0 Answers   Reliance,

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What is difference between dc three point starter and dc four point starter?

3 Answers   Chettinad,

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what is relay type VDG,CDG,VTT ect?

1 Answers   Bhel,

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Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.

0 Answers   Piramal Healthcare,

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