True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)

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In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.

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what is the difference between a hooter and a mcp

2 Answers  

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what is the relevance of knee point voltage in protection and metering grade CT ? and basically what is knee point voltage ?

2 Answers  

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What is transposition in a transmision line?

2 Answers  

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How do I calculate a WTI CT ofa 1250kVA 6600/400V transformer

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how test transfomer(3 phase75kva) by megger

0 Answers   HPL,

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why we used star delta starter for above 5hp motors

2 Answers  

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In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes

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What does negative slip of an induction motor signify?

10 Answers   Tata Elxsi,

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why does in transformer the v/f ratio constant?

2 Answers   TATA,

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What is the magnetic field (coil DC ) of Turbo Expander?

0 Answers   TATA,

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