what is the difference between ups & inverter

4 Answers   Cushman Wakefield, Dana Group,

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how to select size of hardware for linking aluminium busbar is it depend on area of busbar or current flowing through bus bar

0 Answers  

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Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??

0 Answers  

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What is breather? why we use it ?

3 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 is the relation between the size of the machine and the frequency? (when the frequency increases the size of machine will increase,why?)

2 Answers  

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What is earth system using on the floater TN-S or TT. Iam not sure and what ICCP

0 Answers  

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why is the core of the underground cable is spiral in shape instead of straight?

8 Answers   Mecon,

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is it possible to turn on the single phase star delta on delay timer using 24 v dc ?

0 Answers   L&T,

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WHY BREAKER ARE USED IN SUBSTATIONS?

0 Answers   Fedco,

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How to Calculate Contracted Maximum demand using motor Hp or Current

3 Answers  

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Is there any calculation to find unknwon(unferroled) phases R Y B in alternator,3 phase motor anybody shoot my problem. how can we notice this is the respective phase?

3 Answers  

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