Temperatuurbewaking van schakelapparatuur: Installatie van fluorescentie-glasvezeltemperatuurmeting

Invoering

Switchgear is critical electrical equipment in power systems, with bus bar connections, contacten van stroomonderbrekers, and other components prone to heating during long-term operation. Fluorescence fiber optic temperature measurement technology, met zijn unieke voordelen, provides a reliable solution for switchgear temperature monitoring.

Onderdelen van een Fluorescentie glasvezel temperatuurmeetsysteem

1. Fluorescentie glasvezel temperatuursensoren: These core components are made from fluorescent materials that convert temperature information into fluorescence signals, enabling real-time temperature monitoring.
2. Fiber Optic Transmission Lines: Used to transmit fluorescence signals from sensors to the signal processing unit, featuring excellent insulation properties and electromagnetic interference resistance to ensure stable and reliable signal transmission.
3. Signaalverwerkingseenheid: Processes and analyzes received fluorescence signals, extracts temperature information, and transmits temperature data to monitoring systems or host computers through communication interfaces.
4. Bewakings- en weergave-eenheid: 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.

Voorbereiding vóór installatie

1. Tool Preparation: Prepare necessary installation tools, including fiber optic cutting tools.
2. Personeelstraining: Ensure installation personnel understand the principles and installation procedures of fluorescence fiber optic temperature measurement systems, master techniques for routing, connecting, and securing optical fibers, and are familiar with safety precautions.
3. Installation Environment Inspection: Controleer de installatieomgeving van de schakelapparatuur om er zeker van te zijn dat deze voldoet aan de vereisten voor temperatuurmeetsystemen voor fluorescentieglasvezels. De binnenkant van de schakelapparatuur moet schoon zijn, droog, en stofvrij, olie, en vocht. Aanvullend, onderzoek de interne indeling van de kast om ervoor te zorgen dat er voldoende ruimte is voor het installeren van bedradingscomponenten.

Gedetailleerde installatiestappen

1. Installatielocaties bepalen

   Gebaseerd op de structuur van de schakelapparatuur en de lay-out van de elektrische apparatuur, selecteer geschikte temperatuurmeetpunten, meestal inclusief busbar-aansluitingen, contacten van stroomonderbrekers, kabel connectoren, en andere hittegevoelige gebieden, evenals andere kritische apparatuur binnen de schakelapparatuur. Tegelijkertijd, plan het glasvezelrouteringspad, het vermijden van parallelle installatie met lijnen met hoge stroomsterkte om elektromagnetische interferentie te verminderen, en ervoor zorgen dat de buigradius van de vezel aan de eisen voldoet.

2. Installeren van fluorescentie-glasvezelsondes

   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. Tijdens de installatie, take care to protect the probes from mechanical damage or contamination.

3. 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. Tijdens de installatie, avoid creating bends with radii smaller than specified, draaien, 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.

4. 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.

5. 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.

6. 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. Tegelijkertijd, connect the transmitter’s communication lines to monitoring systems or host computers as needed, enabling remote transmission and monitoring of temperature data.

7. 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

1. Systeeminbedrijfstelling

   Na installatie, 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. Aanvullend, set temperature alarm thresholds according to switchgear operational requirements and equipment temperature limits, ensuring the system issues timely alarm signals when temperatures are abnormal.

2. 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. Tijdens de inbedrijfstelling, promptly troubleshoot and resolve any issues if abnormal temperature data or system faults are detected, ensuring normal system operation.

3. 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, olie, or other contaminants from affecting temperature measurement accuracy; inspect temperature transmitters and monitoring and display units to ensure normal operation; periodically calibrate the temperature measurement system to maintain accuracy. Aanvullend, observe temperature changes at measurement points within the switchgear, promptly identifying and addressing temperature abnormalities to ensure safe and stable switchgear operation.

Installatie casestudy

In een renovatieproject voor schakelinstallaties op een onderstation, a fluorescence fiber optic temperature measurement system was successfully implemented. The project team first conducted a detailed assessment of the switchgear’s structure and operational status, identifying multiple critical temperature measurement points, including bus bar connections, contacten van stroomonderbrekers, and cable connectors. Tijdens de installatie, they strictly followed installation procedures, ensuring fluorescence fiber optic probes maintained close contact with measured objects and properly routing optical fibers to avoid electromagnetic interference and mechanical damage. Na installatie, inbedrijfstelling, en kalibratie, 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.

Conclusie

The application of fluorescence fiber optic temperature measurement technology in switchgear temperature monitoring provides robust protection for the safe operation of electrical equipment. The installation process must strictly adhere to standards, with thorough preparation, appropriate selection of installation locations, careful fiber routing, correct equipment connections, and detailed commissioning and calibration. Through regular maintenance and inspection, the long-term stable operation of fluorescence fiber optic temperature measurement systems can be ensured, providing timely and accurate monitoring of switchgear temperature changes, preventing equipment failures and accidents, and establishing a solid foundation for the safe and reliable operation of power systems.

Glasvezel temperatuursensor, Intelligent bewakingssysteem, Gedistribueerde fabrikant van glasvezel in China