High frequency energisation systems
There have been few departures in the past from the use of traditional mains frequency rectified supplies for precipitator energisation, owing, in part, to the lack of availability of suitable high frequency high voltage transformers and high speed switching power thyristors; consequently the conventional 50/60 Hz design has dominated the precipitation market. The circuit architecture of the conventional design, whilst being robust and simple has, however, a number of technical drawbacks.
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