Questions tagged [single-phase]

AC power with two legs run 180 degrees out of phase

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10
votes
3answers
16k views

Single-phase to 3-phase conversion

I have seen some boxes (with some capacitor circuits inside) which do single-phase power supply to 3-phase power supply conversion. The problem with them is that they cause the load motor to heat up, ...
2
votes
1answer
3k views

Single Phase Induction Motor Wiring help

I have purchased a Single Phase Induction Motor that runs anti-clockwise, I require it to run clockwise however I am unable to figure how to change the wiring to do this, any help would be appreciated....
2
votes
1answer
21k views

How do I change rotation direction of single phase fan motor?

I have a single phase AC motor. I found it from Photocopy machine. That motor same to Fan motor. It has a capacitor to make phase angle. I don't know what is the correct name of my motor. Can I ...
1
vote
2answers
2k views

Does only wiring 2 poles of a 3 pole overload relay have any effect?

When wiring a single phase starter, they tend to jumper the overload such that all phases of the overload are used. Now, considering that the overload has 3 separate bimetal strips all connected to ...
0
votes
1answer
95 views

Why 2 pole induction motors don't use auxiliary windings while running (while others do)?

Most motors with more than 2 poles I see (4 poles, 6 poles etc) use a run capacitor and a use the auxiliary winding all the time. Some even employ starting capacitors but they always have a run ...
0
votes
3answers
2k views

How can voltage be zero when current is non zero? (Single phase series circuits)

We were taught about single phase series circuits today and I had a bit of a problem understand this little thing. Let's look at this case 1) purely capacitive circuit It's said that current leads ...