Many variable frequency AC drives produce a ________________ output.

Reflected wave voltage reduces the voltage that the motor receives.

The frequency of the sine wave voltage available from power companies in the U.S. is ______________

What would be the volts per hertz ratio of a motor with a voltage rating of 240 VAC and a base operating frequency of 60 Hz.

Many variable frequency AC drives provide low speed boost to increase the voltage at low frequencies.

Which of the following is not a step to reduce the effects of reflected wave voltage?

Many variable frequency AC drives can be programmed so that different speeds can be selected by changing certain inputs or parameters.

Most variable frequency drives do not allow you to skip frequencies that put stress on a motor.

The AC voltage supplied by power companies is delivered as a(n) _________________ wave

Most variable frequency drives produce an output called _______________________________________.

One problem with PWM is that each pulse begins with a voltage drop that is nearly double the peak voltage.

_________________ a motor involves operating it below its standard Hp rating.

The voltage that is reflected back at the variable frequency drive by the motor is called ______________ wave voltage.

Many variable frequency drives can be programmed so that different speeds can be selected simply by activating certain ________________ or changing certain parameters.

When operating a motor with a variable frequency drive, there are certain ____________________ that cause the motor to run rough and vibrate.

Some variable frequency drives can be programmed to _____________ certain frequencies that might be harmful to the motor

A motor rated for 60 Hz operation can be operated at speeds __________________ than its base speed.

An average 2-pole industrial motor can be safely be operated up to _________ over its base speed.

The relationship of voltage to ________________- is very important to the operation of an AC motor.

The Volts per Hertz Ratio of a motor with a base voltage of 230 VAC and a base frequency of 60 Hz is ____________________.

Most variable speed drives supply a(n) __________________ Volts per Hertz Ratio at various speeds up to base speed

Below 15 Hz, a constant Volts per Hertz cannot produce adequate ________________.

__________________________ involves increasing the voltage at low frequencies in order to produce a higher Volts per Hertz Ratio

What should the maximum frequency setting be for a 2-pole motor with a 60 Hz rating?