how to calculate the change over time for star delta starter for different KW motor?

0 Answers  

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i want to know about for what reason we are using star delta starter? how it works? what are the advantages?

4 Answers  

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In a 3 phase,400v,4 wire system, 2 incandescent lamps, one having 230v,100w and the other 230v,200w are connected between r phase- neutral and y phase-neutral respectively. If neutral wire breaks which lamp will fuse first and why?

3 Answers   Eskom, SSC,

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If I have a motor of 1 MW with 6.6 kV, running at 35% load, how can I save energy without reducing the load?

6 Answers   Reddy Labs,

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I need a 33/690V Dry type transformer.How to select IP class for this transformer.This will be an outdoor transformer located in a highly polluted environment.

3 Answers  

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I know the Capacitor value- 12.5KVAR, voltage 440V gas filled, then what is the formula for calculate the microfarad value for this 12.5KVAR capacitor

2 Answers  

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what is effect of length of air gap on performance of dc motor and generator?

0 Answers   DEI,

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how to control the generator output voltage? what r the condition should satisfy for synchronization?

7 Answers   HP,

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How to calculate 33 kv panther conductor line losses.

1 Answers   Construction, Orange,

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what is the difference b/w KVA and KW? the transformer are mentioned KVA rating and the loads are mentioned KW.why?

2 Answers  

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What is power in wattage of 8.5 TR AC

0 Answers  

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What is the meaning of TRI Vector meter?

7 Answers   ABB, Excel Power Switchgear,

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