What type of capacitor is typically used in elevator systems for motor operations?

In elevator systems, electrolytic capacitors are commonly used for motor operations due to their high capacitance values and ability to handle significant voltage levels. These characteristics make them particularly suitable for applications that require a large amount of energy storage in a compact form.

Electrolytic capacitors are polarized, which allows them to provide higher capacitance in a smaller size compared to other types of capacitors. This makes them ideal for applications such as starting and running AC motors in elevators, where a quick discharge of stored energy is necessary to provide the surge required when the motor starts.

Additionally, the design of elevators often necessitates reliability and efficiency in the electrical components, and electrolytic capacitors generally have good performance in these areas when utilized correctly. The other options, while they have their own applications, do not provide the same combination of characteristics needed for the specific demands of motor operations in elevator systems.