HIGH VOLTAGE SWITCHING APPARATUS AND SWITCHING CIRCUIT USING A HIGH VOLTAGE SWITCHING APPARATUS AND METHOD FOR PRODUCING A HIGH VOLTAGE SWITCHING APPARATUS

摘要

The invention relates to a high voltage switching device with a vacuum chamber and a switchgear with a high voltage switching device. Moreover, the invention relates to a method for producing a high-voltage switching device with a vacuum chamber. The high-voltage switching device has a potting housing 1 made of a casting resin, which surrounds the housing body 3 of the vacuum chamber 2, which has a fixed contact 4A and a movable contact 5A, wherein between the inner wall of the potting 1 and the outer wall of the housing body 3 of the vacuum chamber. 2 an intermediate layer 3A is provided. The high-voltage switching device is characterized in that this intermediate layer is a casting resin layer 3A, wherein the glass transition temperature of the casting resin layer is between 10 and 40 ° C. In such a construction, in tests no cracks in the coating or wrapping of the housing body of the vacuum chamber and no external flashovers on the housing body have been shown.