| 摘要 |
A capacitor arrangement having a device for monitoring and disconnecting an electrical capacitor, especially a heavy-current capacitor, which is arranged in a gasproof housing inside which there is an overpressure resulting from excessive heating of the capacitor, from which the operation of an electrical switch, which is connected in the supply circuit of the capacitor, is derived. The switch is controlled by a pressure sensor which senses the pressure inside the housing and triggers when the maximum permissible overpressure is reached. In addition, self-monitoring of the disconnection protection and monitoring of the capacitor housing for leakage points that occur can take place by means of the pressure sensor or a second pressure sensor. To this end, a small minimum overpressure is set for the inside of the capacitor housing, so that the switch is also triggered as soon as the internal pressure falls below the minimum overpressure.
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