What are the advantages of a three-phase system over a single-phase system?

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Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more

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What does the kvar means?

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Can earth resistance be measured without connecting the earth electrode? and should earthing connections be disconnected What is the effect of connecting two cables of different sizes in parallel with supply? Thanks in Advance. I am intrested to get in touch with some tecnocrats/engineers,my mail i.d is : hiremathvijay@rediffmail.com

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what is an unbalance in acircuit? in a three phase 3wire circuit how an unbalance will come? in a three phase four wire system how an un balance is coming?

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Don't you have similar question banks related to Oral Certification Examination conducted by Mercantile Marine Departments / Directorate of Shipping, Ministry of Shipping for Electro Technical Officer?

0 Answers   Bernhard Schulte Shipmanagement,

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What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

0 Answers   ABB,

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What is the accepted limit to increase the choosen transformer capacity over the load and why ?

2 Answers   Asec,

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what is electricity

3 Answers   APGenco,

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Rated moter voltage and frequency is 380volt 60 hz but moter is running at 380votac 50hz is this harmful for moter winding

1 Answers   Infosys,

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STATE WORKING OF SF6 C.B.?

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How many types oil using in transformer ? How many letars using in transformer..?

0 Answers   TATA,

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