what is difference between AC VVVF drive & Dc VVVF drive explain their working principle?

13 Answers   Apollo, OPS,

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What is an iron loss or core loss pi?

0 Answers  

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According to general circuit diagram of 1-Phase t/f , why the primary is not get short circuited ,even though the supply terminals both are directly connected through primary winding?

4 Answers  

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What is depreciation factor?

0 Answers   HCC,

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what is photo voltic cell,& what are the materials associated with that?and any spcifications like volts/cm etc?

0 Answers  

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how the inner and outer body is separated in aircrafts?

0 Answers  

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USE OF 8 WAY PAN ASSEMBLY

0 Answers   TCS,

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In UPS, battery connections if parallel connection given, what will happen?

2 Answers  

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why voltage drop will occurs in 3 phase line?

12 Answers   ABB, Servo,

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Differenciate between circuit wiring and sub main wiring with illustrations

0 Answers   MU,

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DG cranking voltage?

0 Answers  

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What is the causes Power Factor become leading and what is the effect of Electrical system ?

2 Answers  

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