How to install a high-voltage substation fiber optic temperature measurement system-INNO

Itu sistem pengukuran suhu serat optik can ensure the stable operation of high-voltage switchgear. There are many common factors that affect the safe and reliable operation of high-voltage switchgear, and poor contact at the conductive connection is one of the most important factors. FJINO’s independently developed point type fluorescent fiber temperature measurement system has a complete range of models and reasonable prices.

Due to the heat generated by current flow, almost all electrical faults will cause temperature changes at the fault point. Overheating at the connection points of the dynamic and static contacts, sambungan kabel, dll.. of the substation switchgear due to poor contact is a serious accident hazard. Dalam beberapa tahun terakhir, similar accidents have occurred in substations, causing power outages in mild cases and explosions and fires in severe cases, sangat mempengaruhi keselamatan.

Biasanya ada interval waktu dari panas berlebih pada sambungan switchgear hingga terjadinya kecelakaan. Jika anomali suhu dapat dideteksi sejak dini dan ditangani dengan cepat, itu akan sangat mengurangi kejadian kecelakaan listrik. Melalui analisis dan penelitian, telah diputuskan untuk menerapkan sistem pengukuran suhu online serat optik tipe titik switchgear tegangan tinggi. Dengan menggunakan metode pemantauan online, suhu pengoperasian peralatan listrik, terutama suhu lokasi sensitif, dapat dipantau. Ini adalah sarana penting untuk peringatan kesalahan dan pencegahan kecelakaan, dan deteksi dini terhadap tanda-tanda pemanasan sambungan peralatan pada switchgear dapat mencegah terjadinya kecelakaan ganas

The optical fiber temperature measurement system is progressiveness in the industry. FJINO has decided to apply the point type pengukuran suhu serat optik system to the temperature monitoring system of the high-voltage cabinet in the power grid, in order to achieve comprehensive requirements for temperature monitoring inside the high-voltage cabinet and improve the safety and feasibility of substation operation. Taking the 10kV high-voltage switchgear of the 110kV substation as an example, this will be explained in detail.

Solution for Installation Quantity of Sistem Pengukuran Suhu Serat Optik for High Voltage Switchgear in Substation

The substation mainly undertakes the power supply tasks for production and daily life, dengan total 39 10kV high-voltage switchgear. We need to implement online monitoring of the temperature of the upper static contacts (A, B, C) three-phase, kontak statis yang lebih rendah (A, B, C) three-phase, and cable heads (A, B, C) three-phase of the 39 switchgear, dengan total 351 titik deteksi (39 × 9:351). Each switchgear is equipped with one 9-channel thermometer installed in the instrument room on the top of the switchgear, dan satu host pemantauan terpusat dikonfigurasi di ruang kontrol utama. The fiber optic sensor is installed at the junction of the static contact and the busbar. Perlengkapan khusus dengan insulasi tinggi, konduktivitas termal yang tinggi, elastisitas tinggi, ketahanan suhu tinggi, and corrosion resistance are selected for fixing the sensing head. Optical fibers are routed along the corners of the cabinet and weak current cable trays, or tied together with insulation ties with secondary wires inside the cabinet. This monitoring system has complete monitoring and alarm functions, always ensuring that high-voltage equipment is in a monitored state, completely unaffected by human factors. Saat alarm terjadi, the system emits corresponding sound and light alarm signals, and the duty personnel have sufficient time to take corresponding measures. This is particularly important for avoiding accidents or causing fires.

Application and Implementation of Point Type Fiber Optic Temperature Measurement System for High Voltage Switchgear in Substation

The 35kV switchgear and 110kV switchgear in three substations are equipped with high-voltage switchgear point type fiber optic online temperature measurement systems. Saat ini, the temperature monitoring of 1110 kV substation and 2 35kV substations has been completed, which solves the problem of real-time online temperature monitoring of the contacts and cable joints of 35kV and 10kV high-voltage switchgear in the substations, providing a guarantee for their safe operation. The system has been running normally for 2 years and has successfully detected 9 abnormal temperature fluctuations caused by poor contact at the conductive connection and 1 fiber breakage fault, and issued alarm messages. After troubleshooting, the system displayed that the temperature at the measuring point had returned to normal.

The application of point type penginderaan serat optik technology in temperature monitoring of high-voltage switchgear in transmission systems has achieved real-time online temperature detection at key equipment points (kontak, sambungan kabel). Pada saat yang sama, we have adopted specially designed optical fibers with high voltage levels, which meet the requirements of high-voltage power switchgear equipment for fiber withstand voltage levels due to their electrical insulation, inherent safety, dan kekebalan terhadap interferensi elektromagnetik. They also have advantages such as high transmission bandwidth, sinyal stabil, ketahanan terhadap interferensi elektromagnetik, resistance to bending, kekuatan dampak tinggi, dan koneksi cepat; The material of the fiber optic sheath has characteristics such as high temperature resistance, resistensi penuaan, ketahanan terhadap korosi, isolasi tinggi, dan tidak lengket, which can adapt to harsh environments such as high voltage, suhu tinggi, dan medan elektromagnetik yang kuat.