Whatever, its rating is not sufficient for the application.
Now, can we draw a line under this?
you're wrong. no you're stupid. well you're stupider so there.
- Thread starter Besoeker
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Now, can we draw a line under this?
875 kva loaded to 840 kva
4000 v
120 line, 70 phase
Z = 4000/70 = 57 ohm
if Z is reduced 10% to 51 ohm
is there any doubt i and S will rise proportionally?
has anyone ever seen a transformer not accept load beyond 95% of its rating?
4000 v
120 line, 70 phase
Z = 4000/70 = 57 ohm
if Z is reduced 10% to 51 ohm
is there any doubt i and S will rise proportionally?
has anyone ever seen a transformer not accept load beyond 95% of its rating?
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4160V according to the OP.
If you want to assume otherwise that's fine.
- Occupation
- Licensed Electrician
carry on you two.
Fine. But I won't resort to personal insults.
why do technical posts keep getting censored?
who believes the kva would not increase?
875 kva xfmr rating
840 kva load
4000 vac
121 a line and 70 a phase
so Z = 57 ohm
if dropped to 52 ohm would delivered kva increase or stay at 840?
even if a 25% increase (120% of rating)?
who believes the kva would not increase?
875 kva xfmr rating
840 kva load
4000 vac
121 a line and 70 a phase
so Z = 57 ohm
if dropped to 52 ohm would delivered kva increase or stay at 840?
even if a 25% increase (120% of rating)?
who has?
- Location
- Chapel Hill, NC
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- Retired Electrical Contractor
No one has that is why Dave jumped in. It is great to see you two having a good discussion:thumbsup:
Proof other than OP statement?
and imo that doesn't prove it
xfmr 875
load max 840 if measured at motor
740 if measured at drive
798 if measured at filter
we need the op to follow up
Fulthrotl
~Autocorrect is My Worst Enema.~
- Occupation
- E
we may be on the verge of a historic moment for civilization
here.... the first documented occurrence of perpetual motion.....
now, if the motor in question can just be powered by posts....:happyyes:
ggunn
PE (Electrical), NABCEP certified
- Location
- Austin, TX, USA
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- Consulting Electrical Engineer - Photovoltaic Systems
What is reality?
gadfly56
Senior Member
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- New Jersey
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- Professional Engineer, Fire & Life Safety
*sigh* Just when I thought this thread couldn't get any worse...
MAC702
Senior Member
- Location
- Clark County, NV
43
The revised title isn't an insult??
gadfly56
Senior Member
- Location
- New Jersey
- Occupation
- Professional Engineer, Fire & Life Safety
No, it's 42.
only if you place weight on the opinion of the person who wrote it
lighten up, it's the internet, don't take it personal
it's populated by smug arrogant judgmental @$$clowns who think they are clever and witty
:lol:
One sue sign the transformer is not big enough is it won't allow the motor to run by dropping out contactors due to excessive voltage drop on starting. But OP has not reported any such happening. So reductio ad absurdum, the transformer is big enough.
Fulthrotl
~Autocorrect is My Worst Enema.~
- Occupation
- E
no, it's a tease.... click bait. it worked.
i've not even made it to the original thread yet..
this is more fun... like suduko, but with more content.
and no disrespect intended to anyone here... but i'm
on vacation, and the irreverence potentiometer is turned up another
quarter turn.... i'm about to run over to your photography
thread.... i've got a camera i've had for a year, that i've not
had a chance to play with until now... and it does 360 panoramic
photos at 12 MP, and 4k video.... https://www.dji.com/osmo
where would something like that be fun? how bout south side of
the grand canyon?
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