Why do we need to use a fluorescent fiber optic temperature measurement system for temperature measurement in capacitor cabinets-INNO

Why does the capacitor cabinet need temperature measurement

The natural heat dissipation of the capacitor cabinet body or the addition of fan heat dissipation cannot ensure the over temperature protection of the reactor when the harmonic current is high. When the line harmonic current is high, even relying on the natural heat dissipation of the capacitor cabinet body or the addition of fan heat dissipation, due to insufficient ventilation, the heat generation of the reactor is too large, which can easily damage the overall control circuit and cause insecurity.

Oleh itu, traditional over temperature protection technology has the problem of insufficient ventilation and excessive heat generation of the reactor when the harmonic current of the line is large, which can easily damage the overall control circuit and lead to unsafe conditions.

The traditional pengukuran suhu method is manual temperature measurement, which requires intensive manual viewing and monitoring of the data display of the visible switchgear. Due to the dense number of temperature monitoring points, it results in high labor intensity, easy omission, and inaccurate monitoring. Lebih-lebih lagi, traditional switchgear cannot continuously measure temperature at multiple points. During use, it has the disadvantage of not being able to measure temperature in areas that are prone to temperature rise, such as inside the drawer and at the screw connection point of the primary copper bar.

Capacitor cabinets often encounter various faults during operation, yang menimbulkan ancaman besar kepada operasi sistem kuasa yang selamat dan normal. The common faults of capacitor cabinets in power operation include oil leakage, penebat yang lemah, dan fius terbakar. Antaranya, kerosakan yang paling berbahaya dan kerap berlaku ialah kerosakan kapasitor yang disebabkan oleh pemanasan. The heating caused by capacitor cabinet faults can be divided into heating at the busbar connection point and heating at the fuse outside the capacitor, with the latter being more likely to occur. Pada masa ini, the thermal maintenance of capacitor cabinets mainly relies on infrared imaging equipment for inspection. Namun begitu, infrared thermal imaging cannot test the temperature in a closed environment, dan keputusan ujian dipengaruhi oleh musim, masa, dan kelicinan permukaan peralatan ujian. Peralatan ujian inframerah adalah mahal dan tidak boleh terus memantau suhu peralatan elektrik voltan tinggi untuk masa yang lama. Terdapat voltan tinggi pada kapasitor, dan terdapat gangguan elektromagnet yang kuat di sekelilingnya, yang sering membawa kepada penggera palsu atau penggera terlepas dalam pengesan tradisional. Oleh itu, adalah perlu untuk menggunakan penderia suhu yang sangat dipercayai dan berprestasi tinggi untuk memantau suhu kapasitor dalam masa nyata dan berkesan, untuk mengelakkan kebakaran peralatan dan kemalangan terputus bekalan elektrik. Selain itu, peralatan pengukuran suhu semasa tidak dapat mengesan suhu tertentu di dalam kapasitor.

Kabinet kapasitor FJINNO sistem pengukuran suhu gentian optik pendarfluor can accurately and real-time monitor the temperature of power equipment in the distribution system. The sensor suhu gentian optik is characterized by high voltage resistance, anti gangguan, and essential insulation, making it very suitable for temperature monitoring in the power industry. Harga berpatutan, and we welcome agency cooperation.