Thread: Tesla Model 3
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Old 09-28-2018, 01:50 AM   #599 (permalink)
ProDigit
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Quote:
Originally Posted by Piotrsko View Post
Easy analogy: capacitor start single phase motor windings. You use the capacitor to "shift" the apparent voltage leading edge some amount of degrees, but it can also double apparent voltage at I believe 90 degree offset.
Well said.
The Tesla won't be fast charging if you have a single phase outlet, connecting to a 4 or 5 prong; because there is no voltage difference between the pins (only L1 and ground (or L2-ground, or L3-ground).

The only way using multiple outlets would work in charging the car is:
  1. If the car can be configured to charge beyond the 15A a normal breaker provides on a single line, or,
  2. If there is a phase difference between L1 and L2.

The phase difference can only be gotten with a rated capacitor, or with an extra line.
The capacitors used in AC systems or motors of the kind, usually are fixed value, which means they're meant to run on a fixed load.
Once the Motor RPM varies chances are that the motor isn't running optimally anymore.
With a Tesla, using almost all the power your home net can support.
With single phase and a cap, there will be additional losses.

Last edited by ProDigit; 09-28-2018 at 02:11 AM..
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