| 摘要 |
<p>PURPOSE:To facilitate the installation of a device to a compressed-gas-insulated equipment by finding a differential pressure between the gas pressure in a standard gas container provided so as to be equal to the insulated gas temperature of the gas-insulated equipment with a pressure sensor. CONSTITUTION:The compressed gas in a compressed-gas-insulated equipment 4 is confined into the 1st container 1. The gas is filled up until the gas pressure becomes the same as the gas pressure in the 2nd container 18. Since the gas- insulated equipment 4 is set to the spot so that the gas temperature in the 2nd container 18 will be the same as in the insulated gas, the gas leak will be able to be discovered if the insulated gas pressure in the gas-insulated equipment gets lower than the gas pressure in the 2nd container 18. With a pressure sensor 19 the difference of gas pressure between in the 1st container 1 and the 2nd container 18 is measured and this value is sent to an arithmetic circuit 21. If it is greater than the set value, an alarm signal is issued and sent to a monitoring device, etc.</p> |
