Ns=(150P/f)

Ns=(120f/P)

Ns=(150f/P)

Ns=(120P/f)

Change neutral

Change all phase

Change any two phase

Change the winding only

Lead

Lag

Slip

Trip

Decrease the starting torque

Cancel the starting torque

Improve the power factor

Decrease the power factor

Fixed and reciprocating scroll

Between fixed and orbiting scrolls

Crank and connecting rod

Eccentric and cylinder