| 摘要 |
<p>1,091,904. Control systems for electrostatic precipitators. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Feb. 16, 1965 [Feb. 26, 1964], No. 7986/64. Heading H2H. An electrostatic precipitator is controlled by a transductor 2, the output voltage of which is sensed by a transformer 10 which through a 2 state circuit switches off the transductor control current in the event of a reduction in voltage due to spark over. A variable recovery rate circuit 12 allows reinstatement of the voltage at a controlled rate. A further circuit 6 integrates the number of spark overs and lowers the transductor output voltage with increasing frequency of spark overs.</p> |
