iam interesting to design the control panel for 3 phase pump motors by controling single phase switches.iam plan to use fuse,contactor & relay for motor protection .how can i select the voltage & amps rating for fuse,contactor & relay plz guide me .if anybody clarify my doubt means it will more helpful for my future .

1 Answers  

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what is the need of reactor in between the transmission line?..like powergrid like that..

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A 10 kva ,400v/200V , single phase transformer with 10% leakage impedance draws a steady short -circuit line current of

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what will happen if we will not use commutater means if we will give dc to the windings in dc motor

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what is the differance between ac induction motor and ac synchronous motor?

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how to calculate the multiplying factor for energy meter with CT ratio given

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Does the electricity supply authority send its customers power (kW) or voltape (V)? Asked by Ivan Muliro

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what is RMU ?

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What will be done if we open the secondary of CT on load??

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0 Answers   TATA,

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how do you reduce the skin effect

2 Answers  

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what is a bus riser in power system and why it is used

2 Answers  

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