Electrostatically operated dust collector

摘要

An improved electrostatically operated dust collector is disclosed which includes a high voltage power supply circuit by way of which a direct current having high voltage fed from a commercial power supply network is applied thereto and a control circuit for controlling said high voltage power supply circuit. The improvement consists in that the dust collector further includes an intermittently operative electric power feed circuit in which feeding of DC electric power thereto is effected for a period of time T1, then feeding of electric power is intermitted for a period of time T2. The aforesaid steps are repeated. A preset circuit also forms part of the improvement in which circuit the aforesaid feeding time T1 and no-feeding time T2 are preset to a required value respectively. An intended energy saving is ensured by the improvement.