what is difference between ac1 and ac3 contactor and why it is needed to be selected?

1 Answers  

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defination of lines

0 Answers  

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what is meant by impedance & transient protection?

0 Answers  

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what is the right cable size for 100 hp mpter.

3 Answers  

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How can i learn to programme every VFD. Or is there any typical study to understand VFD programming.

1 Answers   Volkswagen,

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if earthing is not connected to computers any problem ?

2 Answers   HP,

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how to calculate bus-bar sizes? (copper bus-bars)

2 Answers  

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why asa method ZPF method is more accurate than ASA method?

0 Answers  

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I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

1 Answers  

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derive DC RMS value for half wave rectifier?

0 Answers   BARC,

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How is the AVR working?

1 Answers  

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Is potential difference materials property ..? if yes tnen how.. explain brifly.

0 Answers  

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