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我厂使用的260型高频设备,系五十年代的产品,是采用闸流管整流电路的。由于元器件老化及氧化日益严重,加上闸流管自身的缺陷,不仅开机前需长时间预热,而且开机后常出现逆弧、跳闸或高压调不上等故障,给工作带来很大不便。经我们长期观察发现其原因是由闸流管整流电路引起的。为此,我们使用QL20/20型高压硅整流桥取代了闸流管整流电路,对高频设
I plant 260 high-frequency equipment, the Department of the fifties products, is the use of thyristor rectifier circuit. Due to aging components and oxidation increasingly serious, coupled with the thyristor own shortcomings, not only need a long time before starting warm-up, and often appear after turning on the reverse arc, tripping or high voltage does not wait for the fault, to work a great deal inconvenient. After long-term observation we found that the reason is caused by the thyristor rectifier circuit. To this end, we use the QL20 / 20 high-voltage silicon rectifier bridge to replace the thyristor rectifier circuit, set the high-frequency