The best manufacturer of temperature monitoring devices for high-voltage cable joints-INNO

Many power distribution industries in the power system are prone to safety accidents in hot weather or long-term operation, which are mostly caused by the heating of the connection points in the cabinet. Oleh itu, in order to avoid and reduce accidents, it is mainly necessary to know the temperature changes and values of the contacts in advance. Namun begitu, existing temperature measurement methods, whether active wired non-contact or passive wired contact, have one or another problems, such as interference from the surrounding environment and electromagnetic fields, isipadu yang besar, vulnerability, complex installation, difficult maintenance, inability to withstand high temperatures, poor insulation performance, easy false alarms under high temperatures, large temperature differences from the actual temperature values, penggantian bateri, short lifespan, dan seterusnya.

Cable joints are a key component of cable power transmission, and the process of cable joints includes various factors such as insulation materials, stress control and crimping quality, as well as sealing and heat dissipation. Easy to cause problems, resulting in a high failure rate of cable heads. Mengikut statistik, cable head failures account for over 80% of cable operation failures.

Mengapa sambungan kabel memerlukan pengukuran suhu

Dalam beberapa tahun kebelakangan ini, with the growth of the economy, the demand for electricity has gradually increased, and the power system has also developed towards large capacity, voltan tinggi, and intelligence. The safe and efficient operation of the power system is closely related to the healthy development of the economy and the stability of people’s lives. The high-voltage cables in China’s power system have the characteristics of high voltage and high current. Splices are generally used to connect them at the T-junction of users, the overlap between the high-voltage pile head of column switches and cables, and the overlap between the high-voltage pile head of transformers and cables. After a period of use, the joint may overheat due to metal fatigue, ubah bentuk, and other issues, which can cause power failures. Oleh itu, the power department needs to monitor the temperature situation at the joints of each high-voltage cable in real time to avoid overheating of the joints and causing power failures, ensuring the normal operation of power supply. The safety accidents in the distribution industry of China’s power system are mostly caused by the heating of the connection points in the cabinet. Oleh itu, in order to avoid and reduce the occurrence of accidents, it is mainly necessary to know the temperature changes and values of the contacts in advance.

Selepas kabel diletakkan, untuk menjadikannya satu garisan yang berterusan, setiap bahagian talian mesti disambungkan secara keseluruhan melalui sambungan kabel. Namun begitu, disebabkan oleh kesan kulit daripada caj, kehilangan arus pusar, dan kehilangan sederhana penebat, haba tambahan dihasilkan, yang menyebabkan suhu kabel meningkat. Apabila arus beban kabel terlalu besar, suhu sambungan kabel akan meningkat secara mendadak, menyebabkan wayar teras menjadi panas dan menyebabkan kebakaran; Selain itu, terdapat celah pada sambungan kabel, yang boleh membenarkan air hujan meresap masuk dan menyebabkan sambungan kabel menjadi lembap, membawa kepada kemalangan. The power cable joint operates under high voltage (35kV dan ke bawah) and high current (630A and below) syarat. Semasa operasi, heating can have an impact on the system operation. In order to monitor the temperature at the middle joint of the cable, the traditional temperature measurement method currently used is to manually measure the temperature at the cable joint using an infrared thermometer, which increases the workload of the staff and cannot continuously measure the temperature. It is difficult to timely understand the situation when accidents occur. The problem with the detection method of the infrared online temperature monitor is that it can only be randomly monitored, and monitoring is greatly affected by environmental factors such as high temperature, voltan tinggi, high electric field, dll. Oleh itu, real-time monitoring of the temperature at the cable joint cannot be carried out, which can easily lead to accidents. Both active wired non-contact and passive wired contact types have various problems, such as interference from the surrounding environment and electromagnetic fields, isipadu yang besar, susceptibility to damage and breakage, complex installation, difficult maintenance, rintangan suhu tinggi, poor insulation performance, susceptibility to false alarms at high temperatures, significant temperature differences from actual temperature values, penggantian bateri, short lifespan, dan seterusnya.

FJINNO cable joint fiber optic online temperature measurement system is the latest fiber optic temperature measurement technology developed using advanced fluorescence fiber optic temperature measurement principles. The pengukuran suhu gentian optik sensor has accurate temperature measurement accuracy, kelajuan tindak balas yang cepat, operasi yang stabil, and is widely used in the power cable industry. Harga berpatutan, and we welcome agency cooperation.