UA61498C2 - Device for measuring of electrical equipment temperature - Google Patents

Abstract

The invention relates to the temperature measuring technique, namely to temperature measuring on alive equipment. The device for temperature measuring on electrical equipment comprises a pulse generator, a recording device, lightguide-optical systems, where a lightguide, a polarizer and an optical element are series-connected, a lightguide cone generic for all lightguide-optical systems and an analyzer, a spectral filter, a light receiver connected with a key circuit, at that two key circuit outputs are connected to a switcher through a nonlinear function block and a delay line respectively. At that the nonlinear function block output is connected to the recording device, the pulse generator is electrically connected to the switcher and the key circuit. The device contains fiber-optical insulating elements and additional fiber-optical lines. The optical elements are made from thermo-optical material and are used as temperature sensors. The generator of electrical impulses is simultaneously a synchronous generator of light impulses and is connected to the lightguide cone by its outputs through respective to each output fiber-optical insulating elements, lightguides, polarizers, thermo-optical elements and fiber-optical lines. The analyzer is located after the lightguide cone and is connected to the light receiver through the fiber-optical line, the fiber-optical insulating element and the spectral filter. One output of the synchronous generator of light impulses is series-connected to the lightguide cone through the fiber-optical insulating element, the standard lightguide, the polarizer and thermo-optical element. The invention allows to extend a range of the device use, namely of possibility of measuring of temperature on the alive equipment parts, to increase the measurement accuracy and safety.