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WHY THE GENERATING VOLTAGE @ POWER STATION IS 11KV

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Printed Date: 06Feb2025 at 2:01pm


Topic: WHY THE GENERATING VOLTAGE @ POWER STATION IS 11KV
Posted By: manju
Subject: WHY THE GENERATING VOLTAGE @ POWER STATION IS 11KV
Date Posted: 22Feb2007 at 11:37am
 To all electrical engineers

so my electrical friends heres a question for u pupil.I think most of NIT,IIT n other reputed university students can answer this question

So the question is
Why india is generating 11KV voltage level at power station.N y only these numbers of figures r kept.11kv,22kv,33kv,66kv110kv,220kv,440kv etc.Pls reply as soon.



Replies:
Posted By: vikram_roy
Date Posted: 05Feb2008 at 10:15pm
well i can say i am not from iit or a reputed institute but as far as my knowledge goes it goes like this that its not a multiple of 11 its a multiple of 1.1 i.e. Kf(form factor)look that whenever we are generating the armature that goes through the field coils will always generate a.c. so to get maximum utilization of armature we can generate only voltage that are multiple of the form factor as if u wanna generate say 114kv or 500kv then u will finally end up with slots having conductors that are fractions i.e to say if coil 2 & 6 are made up of same conductors then 2 will be along the entire length of the armature but 6 will be only to a fractional length so total utilization of armature is not possible.But this explanation is only true iff the average value of the voltage is an integer as Kf=(avg val)/(r.m.s. val) so in this case i have a doubt as what to do for fractional avg val?


Posted By: YOUR PRASHANT
Date Posted: 29Feb2008 at 8:59pm
do you knoe about form factor   Smile
actually in india form factor is 1.1  hence every generratig voltage is in multiple of 11


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