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Results tagged with single-phase
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user 82111
AC power with two legs run 180 degrees out of phase
3
votes
connecting single phase motor to UK mains AC
It goes to U1 and U2 as depicted, on those contacts which have bars on them, Red and Black wire.
- 24.5k
2
votes
Three phase short circuit and line to ground short circuit
Because a line to line voltage is \$\sqrt{3}\$ higher than line to ground voltage.
- 24.5k
2
votes
SCR bridge control circuit
First to start you do need a zero cross detector and then two optoSCR or optotriacs. Basically it is the same as if you would be doing dimmer circuit. The only difference is that you do need higher vo …
- 24.5k
1
vote
Accepted
3-Phase Theory vs Practical example confusion
"Wye obviously containing a neutral line"
Of course not. You connect only three phases without neutral, the ground goes to case for safety. $$i_a+i_b+i_c=0$$
The summ of all currents is zero.
T …
- 24.5k
1
vote
Little torque of single phase asynchronous motor
Maybe the cap is just worn. It happens, you won't see by eye. The polymer caps are self healing, when the high voltage punches the plates trough a polymer isolates the shorted dots. So after time the …
- 24.5k
0
votes
Hooking up a variable frequency drive
Yes, two hots. And most important is the ground, leave the neutral unconnected. By the way what's "high-leg delta service", and the table you are refering at is not visible. Also you have to check the …
- 24.5k
0
votes
Wiring a single phase 120/240VAC motor with 8 wires
Probably like this:
simulate this circuit – Schematic created using CircuitLab
You should determine x,y,z positions with ohmmeter. The red and blue could be something else, for example the ele …
- 24.5k