why not phase to phase fault occure in raining day in hv sub-station?
Because rain drops are not continuous. Only in rare cases if rain is full than not only LL but LLL fault can also occur. But in transmission lines the design and slag plays the important role. Also insulators are designed so that water cannot accumulate.
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transformer phasor diagram under load explain it?
What is meant by system?
1.why are not using acb 33kv ht side? is there any problem 2.what is difference between acb,vcb,sf6 breackers? 3.what is the function of invertor and convertor in ups?
apti mainly on logical reasoning, verbal and non-verbal ability (70 percent) and remaining technical. I was in ee but technical had mech ques like on turbines and welding.
how to calculate power consumption in slip ring motor at different step
Three phase alternators are connected in star connection why?
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what is the formula of starting current of 3phase and 1 phase motor???
In a three-phase full converter, every SCR conducts for a.60deg. b. 120deg. C.180deg. d.90deg
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in india why we not use frequency above 50 hz for distrubuting power ?
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