ByPavan Mulani
Kamal SinghViranchi Kumar Mishra
Chandra PrakashPrashant Makwana
Samir SarvadiJawahar K
GET-APL
Objective
To introduce a new device to provide direct connection to the high-voltage power grid without using a step-up transformer.
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Contents Introduction Construction Cable construction Cooling system Fault current behavior Merits and demerits Conclusion
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What is powerformer ?
Powerformer is same as generator but only difference in construction.
GeneratorTransform
erPowerforme
r
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Conventional Vs. Powerformer
Conventional system
System with Powerformer
1. Generator2. Generator
Circuit breaker3. Surge arrestor4. Transformer5. Circuit breaker
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ConstructionPowerformer Conventional
Stator winding:
1.High voltage cable 2.XLPE insulation3.Only Cylindrical winding
Stator winding:
1. Copper bars2. Paper insulation3. Rectangular
Rotor winding is same in both the systems
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Cable Construction
1) Conductor2) Inner semi conductor layer3) XLPE insulation4) Outer semi conducting layer04/11/23 8Powerformer
Nature of electric field
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Cooling system
Cooling done at zero potential Tap water can be usedXLPE pipes used axiallyNo radial ductLess risk of short circuit
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Fault current behavior
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Currently used
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MeritsHigh efficiencyLow lossMore reliableLow environment impact
Demerits Occupies Large volume More expensive
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Conclusion
Direct connection to power grid without using transformer
Can generate power upto 220 kVSlot size decreases due to less insulationEconomical, reliable and more efficientvery clean and compact power plant
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Thank you
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