כינעזיש פאַבריקאַנט פון דער בעסטער טעמפּעראַטור מעזשערמאַנט ויסריכט פֿאַר הויך-וואָולטידזש מאַכט ויסריכט

פיברע אַפּטיק טעמפּעראַטור סענסער, ינטעליגענט מאָניטאָרינג סיסטעם, פונאנדערגעטיילט פיברע אַפּטיק פאַבריקאַנט אין טשיינאַ

Why do high-voltage power equipment need temperature measurement

Today, with the continuous development of informatization, electric energy has been widely used in various fields. Various power infrastructure that provides electricity energy is widely distributed throughout the country, undertaking the electricity supply in various regions and fields. Among them, the power station, as the main infrastructure, its supply of electricity and reliability are related to the basic guarantee of production and life in various regions and fields. There are various high-voltage equipment installed in the power station, such as wiring strips, switches, אאז"ו ו. These high-voltage equipment are prone to heating problems due to aging, loosening, and other issues. When the heating temperature is high, not only does it need to be shut down for maintenance, but it may also cause serious accidents. אין די לעצטע יאָרן, multiple power outage and fire accidents have occurred in the fields of power transmission, metallurgy and mining, factories and enterprises, urban power supply, אאז"ו ו, caused by overheating of high-voltage electrical contacts such as high-voltage switch contacts, transformer leads, high-voltage busbars, and high-voltage cable connectors, resulting in huge economic losses. Effective monitoring and alarm of overheating of high-voltage electrical contacts is an urgent requirement for safety production. די רילייאַבילאַטי פון הויך-וואָולטידזש סוויטטשגעאַר אונטער הויך וואָולטידזש און הויך קראַנט טנאָים איז ענג שייַכות צו די טעמפּעראַטור העכערונג פון די אפגעזונדערטקייט באַשטימען קאָנטאַקטן. בעשאַס די אָפּעראַציע פון ​​די מאַכט גריד, מעטשאַניקאַל ווייבריישאַן, קאָנטאַקט יראָוזשאַן, און אנדערע סיבות קענען פאַרערגערן קאָנטאַקט טנאָים, פאַרגרעסערן קאָנטאַקט קעגנשטעל, פאַרשאַפן אַ פאַרגרעסערן אין קאָנטאַקט פונט טעמפּעראַטור, פאַרשטאַרקן קאָנטאַקט ייבערפלאַך אַקסאַדיישאַן, און פירן צו היגע וועלדינג אָדער קרייַזבויגן אָפּזאָגן אין פרייַ קאָנטאַקט פונקטן, לעסאָף קאָזינג שעדיקן צו עלעקטריקאַל עקוויפּמענט, מאַכט אַוטידזשיז, אָדער גרויס אַקסאַדאַנץ אַזאַ ווי פירעס. דעם טיפּ פון קאָנטאַקט אָוווערכיטינג שולד צופאַל איז ניט בלויז רעכט צו דער קוואַליטעט פּראָבלעם פון די הויך-וואָולטידזש קאַבינעט באַשטימען זיך, אָבער מער ימפּאָרטאַנטלי, רעכט צו דער פעלן פון עפעקטיוו מאָניטאָרינג מעטהאָדס פֿאַר די טעמפּעראַטור העכערונג פון די אפגעזונדערטקייט באַשטימען קאָנטאַקטן אין פאָרשטעלן.

In the field of sealed high and low voltage distribution cabinet equipment, due to the requirements of the working environment of the sealed distribution cabinet, the working environment of the distribution cabinet is sealed. With the aging of various electronic components and cables, the contact points between important electrical equipment and cables will heat up due to excessive contact resistance caused by dust, looseness, and oxidation. Abnormal heating parts will cause various safety hazards. אָבער, due to the sealing requirements of the sealed distribution cabinet, it is difficult for inspectors to observe the internal working situation through conventional inspection methods. דערצו, due to the fact that conventional internal temperature measurement equipment is non-contact temperature measuring instruments and is easily affected by various electromagnetic or environmental factors such as high and low temperatures inside the distribution cabinet, inaccurate temperature measurement and unstable operation may occur. Disadvantages of. דעריבער, accurate online real-time temperature measurement of sealed distribution cabinets has become an urgent problem that needs to be solved in the industry.

Traditional temperature measurement methods for high-voltage equipment

With the continuous increase of electricity load, high-voltage isolation switches often experience abnormal temperature rise in switch contacts, bus connections, and other parts due to aging, נעבעך קאָנטאַקט, or excessive contact resistance during long-term operation. If not detected and maintained in a timely manner, it will cause serious equipment accidents. דעריבער, solving the problem of switch overheating is the key to preventing such accidents, and achieving real-time temperature monitoring is an important means to ensure the safe operation of high-voltage equipment. אָבער, due to the limitations of high-voltage operation, the heating part of the contact point of the high-voltage isolation switch is difficult to achieve ordinary online temperature measurement for monitoring. The existing temperature measurement technology can only detect which one or some of the high-voltage distribution equipment is in an overheated state, and cannot test which part of the overheated high-voltage distribution equipment is causing the overheat situation. It cannot determine the location of the faulty components, which creates difficulties for equipment maintenance. Installing sensors for temperature monitoring in high-voltage equipment and using infrared thermometers for temperature measurement during inspections are traditional methods of temperature monitoring, which have the problem of low accuracy in temperature measurement results. איצט, infrared temperature measurement technology is generally used for monitoring in the market. Infrared temperature measurement is easily affected by environmental factors, and there are still significant limitations and difficulties in the application of temperature measurement in dangerous places. The market urgently needs a temperature measurement device that can implement monitoring in dangerous places, with low cost and high reliability.

Fluorescent fiber optic temperature measurement device applied in the field of electric power:

טעמפּעראַטור מעזשערמאַנט פון סוויטטשגעאַר

Due to the rapid increase in the number of high-voltage switchgear applications in the distribution network, data shows that by the end of the 1990s, there were more than 270000 distribution switches operating in the national power system, which doubled compared to the previous year. אָבער, the high-voltage switchgear in the 10kV distribution network is affected by various factors such as daily operation, external damage, and overloaded lines, resulting in a huge proportion of overheating faults. Especially during peak summer and high load periods of the power grid every year, the overall damage caused by overheating of the contacts inside the switchgear often occurs.

Circuit breaker temperature measurement

The temperature change of the switchgear contacts is the key point for online temperature rise monitoring of the switchgear. איצט, low-voltage feed switches or other combination switches use circuit breakers or contactors that are modular in design. Dynamic and static contacts are inevitably used in modular design. אָבער, the use of dynamic and static contacts will inevitably increase a fault point because they need to be frequently plugged in and out, and the current here is generally too high. In case of poor contact, it is easy to have high temperature, which can easily burn out the dynamic and static contacts.

פיברע אַפּטיק טעמפּעראַטור מעזשערמאַנט in substations

In production, accidents caused by overheating of electrical equipment connection points account for a large proportion of overall electrical accidents. If not detected in a timely manner, such hidden dangers will pose a great threat to safe power supply. In order to timely detect hidden dangers and avoid accidents, it is necessary to implement online real-time temperature monitoring and intelligent alarm for each connection point of electrical equipment.

Temperature measurement of electrical cabinet

The biggest cause of fire caused by high-voltage electrical cabinets is that individual contacts or circuits in the high-voltage electrical cabinet cannot dissipate a large amount of heat due to long-term aging or poor contact, resulting in local high temperatures, even exceeding the ignition point temperature, and thus causing a fire. In addition to timely strengthening inspections, it is necessary to promptly eliminate hidden dangers in response to these abnormal points and nip accidents in the bud.

טשאַראַקטעריסטיקס פון fluorescence fiber optic thermometer

FJINNO’s fluorescence fiber optic thermometer has the characteristics of accurate temperature measurement, high resolution, and resistance to electromagnetic interference. The fluorescence fiber optic thermometer can be reliably applied in environments with strong electromagnetic interference, especially in harsh temperature measurement environments. And combined with advanced fiber optic temperature measurement technology, the communication control between the upper computer and the data acquisition system microcontroller, the interface is beautiful, the operation is simple, and it can monitor and save data in real-time online, improving the automation and intelligence of the system.