Aux 2 Unit 5 Quiz 2

Correct Answer:
C) The motor starts smoothly with a controlled ramp-up in voltage and frequency

Explanation:
A solid-state (inverter) starter controls the voltage and frequency applied to the motor, allowing a smooth, gradual increase in speed. This reduces mechanical stress and limits the inrush current during startup.

Correct Answer:
C) Smooth acceleration with reduced mechanical and electrical stress

Explanation:
Solid-state starters offer smooth acceleration by gradually increasing the voltage and frequency, which reduces mechanical and electrical stress on the motor and the power network.

Correct Answer:
B) They provide a smoother start with lower initial current

Explanation:
Solid-state starters gradually increase the voltage and frequency, which allows for a smoother start and lower initial current compared to DOL starters that apply full voltage immediately.

Correct Answer:
A) Higher initial cost and more complex setup

Explanation:
Solid-state starters are typically more expensive and complex to install and configure compared to conventional starters, such as direct-on-line or STAR/DELTA starters.

Correct Answer:
C) It reduces the inrush current, preventing electrical stress

Explanation:
Inverter starters regulate the voltage and frequency during startup, limiting the inrush current and protecting both the motor and the electrical network from high initial surges

Correct Answer:
C) It prevents sudden torque spikes and mechanical shock

Explanation:
A controlled ramp-up in voltage and frequency ensures that the motor starts smoothly, minimizing torque spikes and mechanical shock, which protects the motor and connected equipment.

Correct Answer:
B) It provides continuous monitoring and adjustment of motor speed and torque

Explanation:
Solid-state (inverter) starters allow precise control over motor speed and torque, which can be beneficial for applications requiring adjustable speed and smooth operation.