fiber bragg grating for temperature sensing Electrical fire monitoring system-INNO

The electrical fire monitoring system, automatic fire alarm system, and leakage fire alarm system, although to some extent filling the gap of rapid response and fire prevention in the event of a fire, cannot solve the problem of excessive contact resistance and heating at the internal connection points of the switchgear due to oxidation, ढील, and pollution during operation, especially the problem of high temperature rise at the connection points between the feeder cable and the busbar or switch due to overload, thus burying fire hazards.

The Design Specification for Fire Automatic Alarm System states that the temperature measurement system should mainly be installed in key heating parts such as cable joints, and contact temperature measurement should be used for lines below 1kV, and fiber optic grating temperature measurement should be used for lines above 1kV. वास्तव में, fiber optic grating temperature measurement systems can meet the requirements of contact temperature measurement, and can also be applied in high-voltage environments with excellent insulation performance.

Designers are most concerned about the temperature of the internal connection points of the switchgear, and hope to be able to obtain real-time temperature information in order to promptly handle faults. फिर भी, conventional temperature measurement methods mainly use तापमान सेंसर, infrared imaging devices, and temperature sensing cables, which cannot fully meet this requirement, mainly reflected in the following aspects:

1) Conventional temperature measurement methods such as thermocouples, थर्मिस्टर्स, और सेमीकंडक्टर तापमान सेंसर को उनके अंतर्निहित विद्युतीकरण या सिग्नल संचारित करने के लिए धातु के तारों की आवश्यकता के कारण उच्च और निम्न वोल्टेज कैबिनेट के अंदर उपयोग के लिए अनुशंसित नहीं किया जाता है।, और उनके इन्सुलेशन की गारंटी नहीं दी जा सकती.

2) हैंडहेल्ड इंफ्रारेड थर्मल इमेजर को परीक्षण की जा रही वस्तु से दूरी बनाए रखनी चाहिए, जो एक गैर-संपर्क तापमान माप पद्धति है जिसके लिए मैन्युअल संचालन की आवश्यकता होती है और निर्बाध ऑनलाइन माप प्राप्त नहीं किया जा सकता है. इसके अलावा, मापा गया तापमान डेटा वस्तु की सतह का थर्मल विकिरण मान है, जो पर्यावरण से आसानी से प्रभावित होता है और उसकी प्रामाणिकता ख़राब होती है.

हाई और लो वोल्टेज स्विचगियर सभी हैं “सील” प्रकार, और जब उपकरण चालू हो, छोटा कमरा आमतौर पर बंद रहता है. इसके अलावा, कैबिनेट के अंदर कई लाइव कंडक्टर हैं, making manual inspection very difficult.

Temperature sensing cable temperature measurement is a linear temperature measurement method that cannot locate the temperature or temperature changes at a certain point, and therefore cannot be applied to temperature measurement at switch cabinet connection points.

The characteristics and advantages of फाइबर ऑप्टिक झंझरी तापमान माप प्रणाली

जैसा कि यह सर्वज्ञात है, when the system or equipment is overloaded, the circuit breaker needs to accumulate heat before it can act, which is a long process. When the circuit breaker refuses to act or fails to act, it can cause harm to equipment such as busbars, स्विच, and cabinets, and even lead to a fire. वही फाइबर ऑप्टिक झंझरी तापमान माप प्रणाली can meet the requirements of contact temperature measurement and can measure the temperature of the monitored object in real time without power outage. It can indirectly monitor the operation of equipment or distribution circuits, allowing management personnel to know abnormal temperature information in the first time, eliminate fire hazards in the first time, and improve automation and response speed.

Introduction to the working principle of fiber optic grating temperature sensor तापमान माप के लिए

The fiber optic grating temperature measurement system uses fiber optic as the transmission medium, utilizing the temperature sensitivity of Bragg gratings and the principle of light reflection, to detect real-time temperature changes in the heating parts of power facilities in the power system, and perform multi-point temperature data collection, गणना, प्रदर्शन, निदान, और अलार्म.