how wud i know that whether i have to use unitized package substation or transformer?

1 Answers  

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What is Cement

11 Answers   ACC, L&T, Reliance Cement,

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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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what is the meaning of servo motor. In trains, what type of the motors we are using at the bottom of each compartment

5 Answers  

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why white color LED light is not possible?

1 Answers  

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WHAT IS SITTING AMPS IN OVER-LOAD RELAY FOR 1PH OR 3PH MOTORS?IF ITS NAME PLATE GIVEN MAX AMPS 10AMPS?

0 Answers  

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in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?

0 Answers   apspdcl,

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how we can calculate power factor without knowing current in 230v 100w load ?

10 Answers  

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WHAT IS B & C CLASS SURGE PROTECTION AND WHAT IS DIFFERENCE BETWEEN B & c CLASS SP

2 Answers   Bharti,

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What is the difference b/w chock and ballast?

2 Answers   Emami,

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I want the details about BHEL company examination.Can anyone able to help me please.

0 Answers  

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What is means by MacAdam Ellipse?

1 Answers  

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