How amny AH battery required for 600va inverter ?And how many hours it will give backup for ceiling fan ?

3 Answers   HCL,

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what is the difference between synchronization and paralleling?

13 Answers   BARC,

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What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )

0 Answers   Ambuja,

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Are we do it in single transformer with dual primary as 11 KV and 33 KV and constant output as 415 Volts?.

1 Answers  

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what is the significance of per unit impedance ?

7 Answers   HP,

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In more then 1 phase bulb will glow are not?if yes then how it will glow?

2 Answers  

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1.In two wattmeter method if one wattmeter shows Negative reading then wat is reason? 2.Wat is the reason for low voltage in houses? 3.Wat is meant by current and voltage? wat is difference between the two?

10 Answers   Engineering,

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Difference between rating factor of cable and derating factor of cable?

0 Answers  

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What are various accuracy classes of CT(Current Transformer)

1 Answers  

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HOW TO CONNECT THREE PHASE OVER LOAD RELAY FOR SINGLE PHASE

2 Answers   Quest,

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what is the difference between arc and spark

2 Answers  

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Why Transistors are not used as switching devices?

15 Answers  

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