What is the electrical difference between Earthing Switch (ES) and Maintenance Earthing Switch (MES)?

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Why PS class CT is always preferred for Differential protection?

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

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control & auxilary circuits used for circuir breakers

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in my working site. momentary jerck in electrical supply ocurred frequently which cause of multiple losses in our electrical equipements. how can we protect our electrical machines and equipements in this situation.

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1)how many types of earth? 2)how many types of megger and how to select that range? how much time taken for megger calibration( we r using megger)

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Stator of 3-phase IM has 3 slots per pole per phase, calculate number of stator pole pairs. A 1 B 6 C 2 D 3

2 Answers  

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How to select a cable size for particular load?

0 Answers   Amit Enterprises, Takasago Engineering, Techno Electric and Engineering,

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in house wiring when two wires are same colour coding and there is no any connection one end how to find which wire is earthing wire

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how does it help for selection of a transformer.

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how a single machine can act as both motor and generator? and give explanation interms of connections?

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In Swinburne's Test on D.C.machines, why the efficiency is more when the machine runs as generator than when it runs as motor???

6 Answers   College School Exams Tests, GE, MVR, Practical Viva Questions,

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