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How can the direction of rotation of any three phase motors be reversed?

The contact symbols in the above diagram indicate _______________________________.

____________________ diagrams show electrical components in their electrical sequence without regard for physical location.

True/False Questions

There may be times when it is desirable to have more than one START–STOP push button station to control a motor.

Many bimetal strip type overload relays can be set for either manual or automatic reset.

____________________ forces one contactor to be de-energized before the other one can be energized.

Control transformers generally have screw terminals connected to the primary and secondary leads.

The continuous change of both amplitude and polarity of the magnetic field causes currents to be induced into the metal core material; these currents are called ____________________ currents.

In a three-wire start/stop motor control circuit, the Stop Button can be wired normally open or normally closed. For the circuit to operate properly, the Stop Button should be wired_____________________.