Why is shaft current insulation required on large motors & when should it be checked i.e. before or after assembly?

2 Answers   Aramco,

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fog produced due to?

2 Answers   MAHINDRA,

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what is polarity in ac system? and how do identified?

1 Answers  

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What is the latest generation of circuit breakers called?

3 Answers   Epitome, Focus Energy, Jakson, KDC, L&T,

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WHICH IS BETTER( FOR POWER SAVING)- ON LINE OR OFF LINE UPS ?

3 Answers   Punjab National Bank,

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Why soda is added with water in Lrs of Sliipring motor…to Increase or decrease resistance of water?

1 Answers  

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what & how to check the lightning arrester

0 Answers   ABC Telecom,

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keeping in view of parallel operation which of the 3 phase transformer connection are possible? a)delta-delta to delta-star b) delta-delta to star-delta c) star-star to delta-delta d) delta-star to star-delta

4 Answers   Ecil, Siemens,

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What is the difference between earthed and unearthed cable

5 Answers   FT, L&T, Suzlon,

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why transmission is only 3 phase and not 2 or 4 or poly phases

0 Answers   Infosys,

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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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what would happen nif we increase or decrease the capacitor of a flood light.

1 Answers  

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