| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for accurately recognizing a drying state of content in an oil-filled electric device. <P>SOLUTION: When insulation oil 5b with much saturated moisture content is injected into a tank 1, and is heated and circulated by using an insulation oil circulating device 16, the circulated oil volume and water content in the oil are measured with a flow meter 18 and a moisture meter 19 mounted on an oil pipe 17. The flow meter 18 and moisture meter 19 are online connected to an external computer 20. By observing the circulated oil volume and water content in the oil on the computer, a starting point and an end point of dry processing is recognized and an optimum drying time is calculated. <P>COPYRIGHT: (C)2013,JPO&INPIT |
