how we provide neutral earth on synchronising panel as per electrical standards?

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- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

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why ac signals are sinosuidal

2 Answers  

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xfhnchncv?

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Transformer how to maintaince a check b check c check d check

0 Answers   DIC India,

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I have 30KW Motor Starter Panel, System voltage is 480V, So i have to convert voltage 480 to 220V to give the contactor coil. How i can select control transformer, Which rating transformer i can use this panel, what is the procedure, please tell me.

2 Answers  

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why electronic instruments is more favorable than electrical?

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why cable i burning without tripping. how can protect led street lights

0 Answers   Cosma,

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how on load transformer is chnage the Tapping ?

2 Answers  

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Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?

0 Answers   Prism Cement,

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what will be the effect if you were using different brands of outlets?

0 Answers   TESDA,

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Please explain me about Relay curves and their sources to read ?

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