what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?

0 Answers   CG,

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What is the formula to calculate a three phase alternator

0 Answers  

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What is class X ct? What rare its uses?

2 Answers  

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How to calculate the 2500 Kva Transformer losses Primary 11KV Secondary 415volts

1 Answers   Laurus,

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(In MEP services) HVAC in AC Plant room what else can we provide if the chiller is not considered?

0 Answers  

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What is the operating principle of turbo-generator.

0 Answers  

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Dear Sir how much cable size required from 0.75 kw to 50 kw for electric motor or pump

1 Answers  

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when we should use Central Battery system and UPS system and why? in other words, what are the differences between the two systems?

1 Answers  

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what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?

0 Answers  

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what is the std. earthing resistance for 440V system or m/c, 33000/440 Volt substation? What is the std.?

2 Answers  

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what will be the effect of leading power factor on turbogenerator (and system) that is running parallel with other TG.

1 Answers  

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what is the path of electron when a static electron is placed in a magnetic field?

1 Answers  

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