FAILURE MONITORING SYSTEM OF OIL-FILLED ELECTRIC APPARATUS

摘要

PROBLEM TO BE SOLVED: To transmit s physical amount of each of a plurality of oil-filled electric apparatuses installed in the whole of a predetermined area range to a remote location using a simple infrastructure, and to further strictly manage oil temperatures of the oil-filled electric apparatuses at the remote location.SOLUTION: A transmitter 101 is arranged in each of a plurality of oil-filled transformers 11 which hermetically stores insulation oil inside an apparatus; the temperature and level of the insulation oil and the internal pressure of the apparatus are sensed to wirelessly transmit and output the sensing values thereof along with an apparatus identification code; and the sensing values and the apparatus identification code transmitted and output by the transmitter 101 are received by a data repeater 201 to be transmitted and output via a public line network 301. A management system 401 sets an upper limit value of a regulated bandwidth of the temperature of the insulation oil based on values of the level of the insulation oil and the internal pressure of the apparatus included in the sensing values received from the data repeater 201, and monitors the oil temperature.