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Electrostatic Precipitators > Penthouse Purge Air Heater Systems

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Penthouse Purge Air Heater Systems

The high voltage support insulators in the penthouse are kept clean and dry by heated air, which constantly flows down through the penthouse, swirls through the inside of the insulators and into the precipitator.

The flow of purge air is maintained by a penthouse heating system consisting of a purge air fan, which feeds into an electric heater and duct, which provides hot, dry air to the penthouse.


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