Fiber optic sensor measurement of knife gate temperature-INNO

Why does the knife switch need temperature measurement

With the increasing demand for power reliability, a certain component in a substation heats up severely and loses its original function, which means it will cause major power outages to users or major equipment damage accidents to the substation. The knife switch components of the substation, due to their rotatability and frequent operation, have always been the most vulnerable components to overheating and damage in the substation. In the safe operation system of power equipment, temperature is an important parameter to verify the normal operation of primary equipment. The connection parts of power equipment, due to changes in climate, equipment foundation, processing technology, environmental pollution, severe overload operation, kuwasiliana na oxidation, na sababu nyinginezo, cause loose crimping, insufficient pressure, changes in contact parts, and ultimately increase contact resistance. When current passes through, the temperature rises, causing equipment aging, insulation decline, na katika kesi kali, triggering arc short circuits, burning out equipment, expanding the scope of equipment damage, reducing equipment service life, and even easily causing a fire and explosion of the equipment, especially the dynamic and static contact parts of the movable knife switch, which have a high failure rate, all of which constantly threaten the safe operation of power equipment.

What are the temperature measurement methods for the knife switch

The traditional inspection method uses manual operation or automatic program control of unmanned aerial vehicles with dual light cameras (visible light cameras and thermal infrared cameras) for inspection. Kisha, visible light photos and infrared photos are exported from the unmanned aerial vehicles. Kisha, by comparing the visible light photos, the knife switch equipment and contact points on the infrared photos are found and marked. Hatimaye, the marked infrared photos are read using temperature measurement software to display the temperature of the knife switch contact points. Hata hivyo, due to the fact that there are at least dozens of infrared photos taken during a single inspection, and each photo contains more than 20 knife switch devices, manually marking the contact points of the knife switch on the infrared photos is very cumbersome and time-consuming. Aidha, it is difficult to directly find the knife switch equipment from infrared photos, na mara nyingi ni muhimu kulinganisha picha za mwanga zinazoonekana zilizochukuliwa wakati huo huo ili kuamua nafasi ya kubadili kisu kwenye picha za infrared.. Kuweka alama kwa mikono kunaweza kusababisha uwekaji alama uliokosekana au usio sahihi. Wakati huo huo, mzunguko wa ukaguzi wa vituo vidogo (angalau mara moja kwa siku) iko juu, na kazi ya kuweka alama kwa mikono inachukua muda mwingi. Kuna hitaji la haraka la njia bora zaidi ya kuibadilisha.
Mbinu za jadi za kupima halijoto kwa swichi za visu vya kituo kidogo ni pamoja na kipimo cha halijoto ya picha ya infrared ya joto, kipimo cha joto cha infrared, na kipimo cha joto cha wireless. Mbinu za kupima halijoto zilizo hapo juu zina utendakazi wa chini wa wakati halisi, gharama kubwa, au zinakabiliwa na uharibifu na haziwezi kurekebisha joto kiotomatiki. They cannot automatically cut open or close when the temperature of the knife switch suddenly rises.

Knife switch fiber optic temperature measurement device

The mfumo wa kipimo cha joto cha nyuzi za fluorescence is a device that controls the high-speed electric telescopic rod to work quickly and cut off when the temperature of the knife switch arm exceeds a certain set value, avoiding damage to electrical equipment caused by high temperature of the knife switch. More importantly, due to the large temperature difference between the two sides of the temperature difference generator on the knife switch, the power generation is large, and the fan simultaneously cools down on one side of the temperature difference generator. The temperature difference generator absorbs a large amount of heat. When the temperature of the knife switch arm drops below the set temperature, the controller controls the high-speed electric telescopic rod to quickly close the knife switch arm, achieving intelligent and automatic control of the knife switch, saving manpower and material resources, and reducing economic losses; Display the temperature signal directly and drive the local alarm device to send out information, providing a remote alarm output interface for connection to other information systems. Send the alarm and data information far to the monitoring center for real-time monitoring of the status of the unmanned substation switch, timely repair, and avoid economic losses.