Fluorescent fiber optic temperature measurement system for cable joints in switchgear switching stations-INNO

Dengan perkembangan ekonomi kota, penerapan jalur kabel 10kV pada jaringan distribusi perkotaan semakin meluas, dan kabinet utama ring serta stasiun switching juga banyak digunakan dalam jalur kabel jaringan distribusi. Sebagai titik lemah dalam pengoperasian jaringan listrik yang aman dan andal, Performa dan kualitas kepala kabel tidak hanya bergantung pada bahan kepala kabel saja, tetapi juga pada proses pembuatan kepala kabel, dan terkait dengan ukuran muatan waktu nyata. Salah satu faktor di atas dapat menyebabkan pemanasan kepala kabel di dalam unit utama ring 10kV, stasiun peralihan, dan switchgear. Jika tidak diperiksa atau dipantau pada waktu yang tepat, bebannya akan terus bertambah, dan temperatur kepala kabel akan naik hingga menyebabkan ledakan pada kepala kabel. Bahkan dapat menyebabkan selongsong insulasi di dalam kabinet pecah, dan kotak gas umum SF6 bocor, mengakibatkan seluruh unit utama ring atau switchgear dihilangkan. Unit utama ring dua dari empat yang umum bernilai 300000 yuan, ditambah biaya bahan pemeliharaan, biaya konstruksi, dan kerugian pemadaman listrik, mengakibatkan kerugian beberapa ratus ribu yuan. Biaya perpindahan stasiun lebih tinggi, dan kerugiannya akan lebih besar, jadi konsekuensinya cukup serius. Inspeksi dan pengukuran suhu perlu diperkuat untuk mencegah terjadinya kecelakaan.

Sistem pengukuran suhu serat optik neon untuk stasiun switching switchgear dan sambungan kabel

(1) Realize early prediction of equipment failures caused by overheating, and take preventive measures;

(2) Ketika terjadi kesalahan panas berlebih, sistem dapat memberikan alarm dan secara akurat menemukan posisi panas berlebih, guiding maintenance work.

(3) Visually display the specific locations and names of cable joints, peralatan, and bus temperatures, and continuously monitor temperature in real-time. Save historical data as a basis for accumulating operational experience and analyzing accidents.

(4) Equipped with RS485 network interface, it can be connected to the management network within the station to achieve information sharing. Computers connected to the local area network within the station can also have temperature display and alarm functions. The host installed in the main control room and connected computers can automatically display corresponding alarm prompts.

(5) The fiber optic temperature online monitoring and control system, as a substitute for traditional temperature sensing fire detectors, has advantages such as high accuracy, fast data transmission and reading speed, good adaptive performance, and accurate and intuitive fault detection. It realizes many functions that traditional temperature measurement cannot achieve and problems that cannot be solved on site.

(6) Different alarm temperatures can be set for each temperature sensor through the system as needed. When the temperature reaches the predetermined value, the system alarms and displays the position of the faulty cable head.

(7) The system can analyze and judge whether the temperature of the switchgear and cable heads is normal or not, and alarm potential accidents based on the trend of temperature changes. It has functions such as over temperature alarm, abnormal temperature rise alarm, automatic recording and printing of out of limit accidents, and accident recall.

Keuntungan dari fiber optic temperature measurement system for switchgear

1. Operasi yang stabil. Itu sistem pengukuran suhu serat optik has the function of online collection, pemantauan, and analysis of on-site temperature. These analyses include over temperature analysis, temperature rise trend analysis, temperature gradient analysis, and automatic environmental temperature compensation. It can also make alarms, comparisons, historical records, and other processing to ensure that handling is done before cable accidents occur. These methods are all based on extensive on-site practice and have high reliability and accuracy.

2. Visual display

Itu temperature measurement system of the switchgear fully utilizes the advantages of temperature monitoring, displaying the temperature value diagram of the switchgear intuitively on the software interface, and displaying the distribution positions of the switchgear contacts and cable joints in the switchgear layout diagram, which can display the temperature value of the measured point in real time and intuitively. The historical record analysis function predicts fire accidents in switchgear and cable joints, and saves the temperature changes at all measurement points since the system installation. By selecting different measuring points and time periods as needed, pengoperasian switchgear dan sambungan kabel dapat dianalisis secara komprehensif. Berdasarkan tren kenaikan suhu, tingkat penuaan switchgear dan sambungan kabel dapat diprediksi sejak dini, dan kemungkinan lokasi gangguan panas berlebih dapat ditentukan, memberikan dasar untuk pemeliharaan peralatan.

3. Pengaturan parameter yang fleksibel

Itu pengukuran suhu serat optik perangkat untuk switchgear memenuhi berbagai persyaratan kompleks di lokasi. Pengaturan parameter yang fleksibel membuat analisis sistem dan fungsi alarm menjadi lebih komprehensif. Pengguna dapat secara fleksibel mengonfigurasi parameter seperti interval perekaman, metode pencatatan, nilai alarm suhu, dan nilai alarm tren suhu berdasarkan situasi aktual di lokasi.

4. Fungsi inspeksi mandiri perangkat online yang komprehensif secara efektif memastikan pengoperasian peralatan yang aman. The system has device self inspection function and self diagnosis ability, which facilitates equipment inspection and maintenance work, while also ensuring the normal and effective operation of the equipment.

Itu sistem pengukuran suhu serat optik neon is very suitable for online monitoring of high-voltage switchgear and cable heads. Saat ini, it is mostly used in 35/10kV power supply systems across the country. Each fluorescent fiber optic terminal is connected to a sensor suhu serat optik corresponding to a temperature measurement point, which is easy to install and implement and easy to expand. Practice has proven reliable operation, timely detection of hidden dangers, achieving predictive control of equipment, effectively reducing power supply accidents, and providing a basis for planned maintenance. Sebaiknya dipromosikan dan diterapkan pada peralatan lain yang memerlukan pengukuran suhu online.