> For the complete documentation index, see [llms.txt](https://docs.mathewscompany.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mathewscompany.com/dryer-operations/dryer-operations/equipment-overview/high-voltage-cabinet.md).

# High Voltage Cabinet

The High Voltage Cabinet and associated sub-panel, shown below, contain all of the motor starters and protectors, main power disconnect, variable frequency drives (VFD's), breakers, relays, and other associated electrical hardware.

<div><figure><img src="https://3115024729-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FRYaukfq5nlgxjVPzEwDk%2Fuploads%2F59o0huMKAWI5iJN2sD8r%2FScreenshot%202024-08-05%20151306.jpg?alt=media&amp;token=d47793dd-9729-46b0-be6b-8c3081c9530c" alt="" width="253"><figcaption></figcaption></figure> <figure><img src="https://3115024729-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FRYaukfq5nlgxjVPzEwDk%2Fuploads%2F0fboJdfGx5BpUJLNseCE%2FScreenshot%202024-08-05%20151323.jpg?alt=media&amp;token=b9df1e63-86f0-4a34-99d9-97e77bd72459" alt="" width="375"><figcaption></figcaption></figure></div>

## Control Power Transformer

The Control Power Transformer transforms a portion of the incoming electrical power to reliable 120V control power, used to supply power to various electrical components.

## Variable Frequency Drive

The Variable Frequency Drive is used to control the speed of the discharge metering/sweep system and is controlled directly by the PLC.


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