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why there is a need to alter "delta" to "star" ?

O

OZ

Jan 1, 1970
0
why there is a need to alter "delta" to "star" ?
 
H

Harry Chickpea

Jan 1, 1970
0
3 phase power is far superior to "house power" 2-phase because there
is always a voltage across some winding of your 3-phase large motors
constantly pulling on the load. 3-phase motor power is very smooth
and more efficient because of it.

While this is true, it is more a correction of a fault of AC power than a
superiority over DC motors. Since DC motors were able to use commutators,
which also supply power to the proper winding, they were initially far superior
to the AC motors. DC motors were more tolerant of varying speeds and were the
motor of choice for trolleys and electrified railroads for many years. It took
the improved solid state switching control circuits to allow large AC motors to
finally become superior to the old commutator style motor.
It is good to note this is all the invention of the genius Nikola
Tesla, for whom I have great admiration and consider the true genius
behind AC, Radio, etc.....

I also have great admiration for this genius. Variations of his ideas are
constantly being rediscovered. The passive RFID tags use a variation of his
wireless power technology. I think it would be fascinating to test his
building oscillators and attempt to use one to level one of the 1950s era
multistory structures slated for demolition.
 
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