초록 ▼

A remote contamination sensing device for contamination on insulation of electric power lines and substations includes a data logger and a supporting structure to which a sensing capacitor with at least two conductors is attached such that the conductors are spaced apart and insulated from each othe

A remote contamination sensing device for contamination on insulation of electric power lines and substations includes a data logger and a supporting structure to which a sensing capacitor with at least two conductors is attached such that the conductors are spaced apart and insulated from each other. A capacitance measuring device, for measuring capacitance data between the conductors, is connected to the data logger. A hygrometer, for measuring the relative humidity of the ambient air, is also connected to the data logger. A first temperature sensor, for measuring the ambient temperature, and a second temperature sensor, for measuring the surface temperature of the capacitance sensor, are connected to the data logger. The measured capacitance data, relative humidity data, ambient temperature data, and surface temperature data are stored in the data logger. A computer is provided for processing the capacitance data, relative humidity data, ambient temperature data, and surface temperature data to determine the level of contamination based on calibration data stored in the computer.

대표청구항 ▼

[ What we claim is:] [1.] A remote contamination sensing device for contamination on insulation of electric power lines and substations; said contamination sensing device comprising:a data logger;a supporting structure;a sensing capacitor comprising at least two conductors attached to said supportin

[ What we claim is:] [1.] A remote contamination sensing device for contamination on insulation of electric power lines and substations; said contamination sensing device comprising:a data logger;a supporting structure;a sensing capacitor comprising at least two conductors attached to said supporting structure so as to be spaced apart and insulated from each other;a capacitance measuring device, for measuring the capacitance between said conductors, connected to said data logger;a hygrometer, for measuring the relative humidity of the ambient air, connected to said data logger;a first temperature sensor, for measuring the ambient temperature, connected to said data logger;a second temperature sensor, for measuring the surface temperature of said capacitance sensor, connected to said data logger;said measured capacitance data, said measured relative humidity data, said measured ambient temperature data, and said measured surface temperature data stored in said data logger;a computer for processing said capacitance data, said relative humidity data, said ambient temperature data, and said surface temperature data to determine the level of contamination based on calibration data stored in the computer.