METHOD AND APPARATUS FOR REMOTELY DETECTING AND MONITORING HIGH VOLTAGE FACILITY OPERATING STATE WITHOUT CONTACT

摘要

Process and device for the contactless optical remote measuring and controlling of temperature, current, voltage and frequency values of a high-voltage apparatus, using sensors (5) and optical waveguides (6) and/or applying the photoluminescence and/or electroluminescence of a varistor body (1) in the form of an oxide-ceramic component. Where electroluminescence of a Co-doped ZnO varistor body (1) is used, it is possible continuously to measure and monitor the temperature by comparing two signals and, by measuring the total intensity, the current and voltage status of an over-voltage arrestor. Its temperature alone can also be monitored by utilising the photoluminescence of doped ZnO ceramics. IMAGE