Answer / somu0507

Transformer tap changer is placed at HT side. Following are major advantages:
1- Finer (smoother) voltage variation for per turn tap changing.
2- Lower current to handle than LT side.

i have 28/32 MVA power transformer with 11/6.6 KC voltage rating and 12%impedance.it have star connection at both side.but it have another thied winding tertiary winding.what is used of this winding. pl tell me

7 Answers  

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What is the phase relationship between the primary and secondary voltages of a transformer?

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In power generator sets, when they are coverted from 50hz to 60hz, the kva rating after conversion increases. For example, the manufacturer of a perkins 200kva @ 50Hz generator set has mentioned it to become 220kva after converstion to 60hz. What is the relation between the frequency & the KVA rating. Any formula please.

3 Answers  

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Can anybody tell me what the breakdown voltage is for air and what it is for transformer oil please?

4 Answers   Pooja Cables,

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why we use to always generate power below 16kv.why not at higher voltage?

3 Answers  

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how can you size an automatic voltage regulator?

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diff b/w normal grounding and resistance grounding

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How power factor affect on bill explain with example.

13 Answers  

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Construction of Diesel generator set?

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how brushless dc motor is operating ?

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In power transformer tappings are provided on A high voltage side B low voltage side C In middle of both the windings D both high and low voltage side

2 Answers   NNN,

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i want to trigger ATS (Mains +Generator )from external system could any body help me in this regard ?? is it posible if yes please tell me how?

1 Answers  

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