A DEVICE AND A METHOD FOR DIAGNOSING THE STATUS OF AN ELECTRICAL APPARATUS HAVING A SEALED FLUID BASED INSULATING SYSTEM

摘要

The present invention is a state of the electrical device (14 ) having a sealing fluid -based insulation system. It relates to a method and a device 10 to diagnose . The device 10 has at least one input 24 for receiving hydraulic pressure measurements and measurements of an actual device of the current flowing through the device, including diagnostic unit 26 as well . Diagnosis unit 26 determines the theoretical hydraulic pressure corresponding to the device based on the measured current , compare the theoretical and the actual oil pressure unit oil pressure unit , and diagnosing the condition of the device based on the comparison . ;