What is a key difference between static and rotary inverters?

Static inverters are designed to convert direct current (DC) into alternating current (AC) and they operate at a constant frequency. This means that once they convert the input DC, the output AC frequency remains fixed, making them ideal for applications where a predictable and stable frequency is necessary. This is particularly useful in many industrial and commercial applications where consistent power supply is crucial.

In contrast, rotary inverters, which involve mechanical components, can be influenced by various factors like load conditions, leading to variability in output frequency. Therefore, the key characteristic of static inverters is their ability to maintain a constant frequency, which distinguishes them from rotary systems that may offer more flexibility but do not guarantee a consistent frequency.

Given this context, the assertion regarding static inverters producing a constant frequency accurately captures the distinction and functionality of these devices compared to their rotary counterparts.