NOCTI Mechatronics 5

The transformer winding to which the line is connected is called the _________ winding.

primary

Which of the following is true of a control transformer?

It has two input coils and one output coil

How do you change the direction in a split-phase motor?

Switch the connection to the starting winding

In a split phase motor, which of the following statements is true?

The starter winding is a smaller size wire than run winding wire.

Which is true of an induction motor?

There is no physical electrical connection to the rotor

The following diagram represents a/an _______________ transformer. file:///C:/Users/20gderr/Downloads/0_0.png

isolation

What is the purpose of the capacitor in a capacitor-start motor?

To create a phase shift between the run winding and the start winding

How does a three-phase motor windings get connected for low-voltage?

parallel

The low voltage windings of a three phase motor are connected in .

parallel

What is the main purpose of the centrifugal switch in a capacitor-start motor?

It is closed at start-up to place the capacitor in series with the Start winding which creates the phase shift needed to rotate the rotor

How do you reverse the direction of rotation in the split-phase motor?

Reverse the polarity of the start winding

An electric motor is used to change?

electrical energy into mechanical energy

A motor _______________ is a motor controller that includes overload protection.

starter

The winding ratio of a _______________ transformer has a rating of 3:1 winding ratio?

step-down