How much energy save vfd if motor run on 50 Hz (full speed)

3 Answers   Reliance,

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what is the diff. btwn. electronic regulator and ordinary rheostat regulator for fans?

3 Answers  

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What if the difference beween internal and exrteranal LBB?

0 Answers  

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I decided to provide a 11KV / 440V Xformer in my Substaion. What are the protection required for that?

5 Answers  

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Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.

0 Answers  

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please send previous exams question papers

0 Answers  

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Why we use less dia. fuse and conductors at H.T. side, although we use higher dia. cables on L.t. side?

4 Answers   RRB,

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block diagram of 2 ups system connected in hot stand by mode?

0 Answers  

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In ac motor,when dc supply is given what happend to the motor?

3 Answers  

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what is the difference between on line & off line UPS

3 Answers  

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What is the HVDC Transmission System? What are the conditions applicable to lay an HVDC Line?

0 Answers  

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how to calculate current in HT side when we having LT current

2 Answers  

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