how are reversing the direction of rotation of dc motor

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why control circuit voltage always chooses to be 110v and 220v? and in where it is 110v and 220v? and in where it AC and DC?

2 Answers  

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what is different between phase and netural

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What are unstable systems?

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WRITEDOWN FEW RELY CODES

0 Answers   Equate,

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What happen if 200 KVAR capacitor connected to power continuesly?

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transformer losses

1 Answers  

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what is mppt (maximum power point tracking ) and how they used in solar power generation ??? what are the main components used in mppt?????

0 Answers  

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what is stiffness factor

2 Answers   NTPC, Power Plant,

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Here iam a question with SYNCHRONIZATION PANNEL related issue, as i want to design a SYNC.pannel board iam giving the 2 nos of 1MVA Generators to sync pannel , then what wil be the out put of the sync pannel, whether it wil be one cable coems from the sync panel or two cables.. as iam using two transformers to meet my load demand, so pls clear me whether two cables comes from sync panel to connect to transformers or only one cable

3 Answers  

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How can calculate ups battery back up time?

25 Answers   Cisco, Cooper, Pronet, Wipro,

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what is corona

3 Answers  

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