METHOD AND ARRANGEMENT FOR LOW-PRESSURE LOCKING OF A GAS-FILLED DEVICE

摘要

The present invention relates to a method and a device for low-pressure locking of a gas-filled device. A steering movement of a pressure detector (11) in association with a gas tank in the device is used to control and, if needed, to hinder the operation of a switch disconnector used e.g. in the transmission of electricity by means of a low-pressure locking device conforming with the invention. The low-pressure locking monitors and sees to it that the gas pressure in the shielding-gas-filled switch disconnector continuously remains on an operational level. The structure of the low-pressure locking of the invention significantly facilitates repairing device malfunction due to environmental variations, and simplifies charging the low-pressure locking.