What does inverter mean?
A)It is an electronic soft starter for a three phase motor
B)Alternating current phases are reversed
C)Incoming 50 Hz alternating current is digitally reformed into an output frequency to a motor in the range from 0 to 50 Hz
D)Incoming 50 Hz alternating current is digitally reformed into an output frequency to a motor in the range from 0 to 20000 Hz
E)Alternating current is electronically converted into direct current to drive a motor

Question

Quizplus · Accepted Answer

An inverter is a device that takes the incoming 50 Hz alternating current and digitally reforms it into an output frequency to a motor in the range from 0 to 50 Hz, allowing for variable speed control of the motor. This is different from a soft starter (A), which gradually increases the voltage to the motor to avoid sudden voltage surges, or reversing the alternating current phases (B), which would simply reverse the direction of the motor's rotation. Inverters also do not convert AC to DC (E), and while they can have a wide frequency range, 20,000 Hz (D) would be beyond what is typically needed for motor control.

What Does Inverter Mean