| 摘要 |
PURPOSE:To eliminate the need for the man power required for analysis by storing the result of gas analysis, determining the deterioration with lapse of time and changing the sampling period of a process for drawing and analyzing oil from at least either one of a tendency to an increase or decrease and a specified value or above of the amt. of combustible gas. CONSTITUTION:An instrument 4 for automatic analysis of gas in oil takes a specified amt. of insulating oil 2 into a gas extracting part 8 through a oil drawing pipe 3 when a valve driving device 7 is started to open and close a valve 6 from a control part 5 at every specified period. The part 8 receives the start signal from the part 5, extracts the combustible gas in the insulating oil and feeds the same into a gas analyzing part 9. The part 9 receives the start signal from the part 5, analyzes the total amt. of the combustible gas or the amt. of specific several kinds of the combustible gases and transmits the same to a data processing part 10. The part 10 receives the start signal from the control part, stores the result of the analysis and determines the change thereof with lapse of time. Said part changes the sampling period of the process for drawing and analyzing the oil from at least either one of the tendency to the increase or decrease and the specified value or above of the amt. of the combustible gas. The need for the man power is thus eliminated. |
