pengenalan
Switchgear ialah peralatan elektrik kritikal dalam sistem kuasa, dengan sambungan bar bas, sesentuh pemutus litar, dan komponen lain yang terdedah kepada pemanasan semasa operasi jangka panjang. Teknologi pengukuran suhu gentian optik pendarfluor, dengan kelebihannya yang unik, menyediakan penyelesaian yang boleh dipercayai untuk pemantauan suhu suis.
Komponen a Sistem Pengukuran Suhu Gentian Optik Pendarfluor
- Penderia Suhu Gentian Optik Pendarfluor: Komponen teras ini diperbuat daripada bahan pendarfluor yang menukar maklumat suhu kepada isyarat pendarfluor, membolehkan pemantauan suhu masa nyata.
- Talian Penghantaran Gentian Optik: Digunakan untuk menghantar isyarat pendarfluor daripada penderia ke unit pemprosesan isyarat, menampilkan sifat penebat yang sangat baik dan rintangan gangguan elektromagnet untuk memastikan penghantaran isyarat yang stabil dan boleh dipercayai.
- Unit Pemprosesan Isyarat: Proses dan analisis menerima isyarat pendarfluor, mengekstrak maklumat suhu, and transmits temperature data to monitoring systems or host computers through communication interfaces.
- Unit Pemantauan dan Paparan: Displays real-time temperature values from various measurement points within the switchgear and includes alarm functionality. When temperatures exceed set thresholds, timely alarm signals alert maintenance personnel to take appropriate measures.
Persediaan Pra-Pemasangan
- Tool Preparation: Prepare necessary installation tools, including fiber optic cutting tools.
- Personnel Training: Ensure installation personnel understand the principles and installation procedures of fluorescence fiber optic temperature measurement systems, master techniques for routing, menyambung, and securing optical fibers, and are familiar with safety precautions.
- Installation Environment Inspection: Check the switchgear installation environment to ensure it meets the requirements for fluorescence fiber optic temperature measurement systems. The interior of the switchgear should be clean, kering, and free of dust, minyak, dan kelembapan. Selain itu, examine the cabinet’s internal layout to ensure sufficient space for installing wiring components.
Detailed Installation Steps
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Determining Installation Locations
Based on the switchgear structure and electrical equipment layout, select appropriate temperature measurement points, typically including bus bar connections, sesentuh pemutus litar, cable connectors, and other heat-prone areas, as well as other critical equipment within the switchgear. serentak, plan the fiber optic routing path, avoiding parallel installation with high-current lines to reduce electromagnetic interference, and ensuring the fiber’s bending radius meets requirements.
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Installing Fluorescence Fiber Optic Probes
Install the fluorescence fiber optic probes at the determined measurement points. For areas such as bus bar connections, use specialized mounting fixtures to secure probes firmly to the surface of the object being measured, ensuring good thermal contact between the probe and the object. Semasa pemasangan, take care to protect the probes from mechanical damage or contamination.
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Laying Optical Fibers
Following the planned routing path, lay optical fibers within the switchgear. Secure the fibers along cabinet walls or equipment surfaces, using cable ties or other fasteners to bind the fibers to internal structures or equipment. Exercise care not to apply excessive force that might damage the fibers. Semasa pemasangan, avoid creating bends with radii smaller than specified, berpusing, knotting, or other damaging configurations. Protect fibers from sharp objects that could scratch or compress them. For excess fiber sections, coil and secure them appropriately, ensuring the coil diameter exceeds the specified minimum bending radius and that the fibers are firmly secured to prevent loosening due to vibration or other factors.
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Connecting Optical Fibers to Temperature Transmitters
Connect the installed optical fibers to the fluorescence fiber optic temperature transmitters. Temperature transmitters are typically installed in the switchgear’s instrument room and connected to optical fibers via ST connectors or other appropriate connection methods. During connection, ensure the ST connectors are clean and dust-free, following correct procedures to connect the fibers securely to the transmitter, avoiding false connections or misalignment issues.
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Installing Temperature Transmitters
Install the fluorescence fiber optic temperature transmitters in the switchgear’s instrument room. Installation methods may include rail mounting or screw fixation, ensuring transmitters are firmly and stably installed, and accessible for future maintenance and repair.
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Connecting Power and Communication Lines
Connect the temperature transmitter’s power lines to the switchgear’s power supply, typically requiring a 24V DC power source, and ensure stable and reliable power supply. serentak, connect the transmitter’s communication lines to monitoring systems or host computers as needed, enabling remote transmission and monitoring of temperature data.
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Installing Monitoring and Display Units
Install monitoring and display units in locations convenient for observation and operation, such as on the switchgear panel or in the control room. Connect these units to temperature transmitters via communication lines, ensuring temperature data is displayed accurately and in real-time on the monitoring interface, with alarm functions operating normally.
Post-Installation Commissioning and Considerations
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Pentauliahan Sistem
Selepas pemasangan, commission the entire fluorescence fiber optic temperature measurement system. Verify normal signal transmission from fiber optic sensors, ensuring temperature data is accurately transmitted from sensors to signal processing units and correctly displayed on monitoring and display units. Selain itu, set temperature alarm thresholds according to switchgear operational requirements and equipment temperature limits, ensuring the system issues timely alarm signals when temperatures are abnormal.
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Calibration and Verification
Calibrate the fluorescence fiber optic temperature measurement system using standard temperature sources or by comparison with other temperature measurement equipment of known accuracy, ensuring the system’s precision and reliability. Semasa pentauliahan, promptly troubleshoot and resolve any issues if abnormal temperature data or system faults are detected, memastikan operasi sistem normal.
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Regular Maintenance and Inspection
During switchgear operation, regularly maintain and inspect the fluorescence fiber optic temperature measurement system. Check the security of optical fibers, ensuring they have not loosened, been damaged, or been subjected to external interference; clean fiber surfaces and fluorescence fiber optic probes to prevent dust, minyak, or other contaminants from affecting temperature measurement accuracy; periksa pemancar suhu dan unit pemantauan dan paparan untuk memastikan operasi normal; menentukur sistem pengukuran suhu secara berkala untuk mengekalkan ketepatan. Selain itu, amati perubahan suhu pada titik pengukuran dalam alat suis, mengenal pasti dan menangani keabnormalan suhu dengan segera untuk memastikan operasi suis yang selamat dan stabil.
Kajian Kes Pemasangan
In a switchgear renovation project at a substation, sistem pengukuran suhu gentian optik pendarfluor telah berjaya dilaksanakan. Pasukan projek mula-mula menjalankan penilaian terperinci tentang struktur suis dan status operasi, mengenal pasti pelbagai titik pengukuran suhu kritikal, termasuk sambungan bar bas, sesentuh pemutus litar, dan penyambung kabel. Semasa pemasangan, mereka mengikuti prosedur pemasangan dengan ketat, ensuring fluorescence fiber optic probes maintained close contact with measured objects and properly routing optical fibers to avoid electromagnetic interference and mechanical damage. Selepas pemasangan, pentauliahan, dan penentukuran, the system accurately monitored temperature changes at various measurement points within the switchgear and issued timely alarm signals. Through this system, maintenance personnel could monitor switchgear temperature conditions in real-time, promptly identifying and addressing temperature abnormalities caused by poor contacts and other issues, effectively preventing equipment failures and power outages, and enhancing the substation’s power supply reliability and operational safety.
Kesimpulan
Aplikasi teknologi pengukuran suhu gentian optik pendarfluor dalam pemantauan suhu suis memberikan perlindungan yang teguh untuk pengendalian peralatan elektrik yang selamat.. Proses pemasangan mesti mematuhi piawaian dengan ketat, dengan persiapan yang rapi, pemilihan lokasi pemasangan yang sesuai, penghalaan gentian berhati-hati, sambungan peralatan yang betul, dan pentauliahan dan penentukuran terperinci. Melalui penyelenggaraan dan pemeriksaan berkala, operasi stabil jangka panjang sistem pengukuran suhu gentian optik pendarfluor boleh dipastikan, menyediakan pemantauan yang tepat pada masanya dan tepat terhadap perubahan suhu suis, mencegah kegagalan peralatan dan kemalangan, dan mewujudkan asas yang kukuh untuk operasi sistem kuasa yang selamat dan boleh dipercayai.
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