Wireless temperature sensor monitoring system suitable for switchgear-INNO

High voltage switchgear mostly uses metal armored enclosed switchgear. Due to the special structure of the switchgear, its dynamic and static contacts and cable joints cannot be measured for temperature during daily inspection work. Due to the highest load of the entire factory reaching 40M, the equipment heating situation is relatively serious. Saat ini, there is no online temperature measurement device for the equipment, which cannot monitor the highest temperature during equipment operation in real time. In order to completely eliminate hidden dangers and prevent system shutdown accidents, considering the stable operation of electrical equipment under high load and the extension of equipment life, online temperature measurement devices are installed for important equipment in substations.

Composition of wireless temperature measurement system

The wireless temperature measurement system consists of three parts: a high-voltage wireless temperature sensor, a low-voltage wireless temperature sensor, a wireless temperature display device, and a server end (wireless temperature measurement monitoring system software). The system adopts advanced and mature sensing technology and unique advanced wireless communication technology for high-voltage isolation and signal transmission. By utilizing its inherent insulation and anti electromagnetic interference performance, it fundamentally solves the problem of difficult monitoring of the operating temperature of contacts in high and low voltage switchgear. It has extremely high reliability and safety, thorough isolation, low price, dan instalasi mudah.

1. Sensor nirkabel
Sensor suhu nirkabel dapat dipasang pada node pemantauan pelanggan sesuka hati. Prinsip kerja utamanya adalah pemeriksaan suhu ujung depan langsung menghubungi titik pemantauan untuk penginderaan suhu. Output dari probe diubah menjadi sinyal digital melalui bagian konversi A/D, yang dikeluarkan ke MCU. MCI-J mengirimkan sinyal suhu ke perangkat tampilan suhu nirkabel melalui rangkaian unit RF.
Apabila suhu pada titik pemantauan melebihi batas, sensor suhu nirkabel tidak dibatasi oleh periode pengumpulan dan segera mengirimkan data real-time ke instrumen tampilan untuk memastikan bahwa personel yang bertugas menemukan titik kesalahan untuk pertama kalinya dan menanganinya tepat waktu.

2. Perangkat tampilan suhu nirkabel
Perangkat tampilan suhu nirkabel dapat dipasang di ruang sakelar atau ruang kontrol sesuai dengan lingkungan di lokasi. Prinsip kerja utamanya adalah catu daya AC/DC melewati rangkaian proteksi petir dan diubah menjadi rangkaian catu daya AC/DC untuk memberikan daya pada peralatan.; MCU menerima data sensor real-time melalui sirkuit RF atau menetapkan parameter sistem untuk setiap sensor. Data suhu yang diterima disimpan dalam chip penyimpanan, ditampilkan pada layar LCD, dan ditransmisikan ke perangkat lunak sistem server melalui antarmuka komunikasi seperti RS485, Ethernet, atau serat optik.
Apabila suhu pada titik pemantauan melebihi batas, perangkat tampilan menyediakan dua pengingat aktif: bel dan LED berkedip, dan mengunggah data alarm secara real time ke perangkat lunak sistem.
For the convenience of single machine operation, the wireless temperature display device provides an intuitive and clear human-machine display interface, and users can set system parameters through the receiver buttons.

3. Introduction to server-side monitoring software
Staff can log in to the WEB query system using pre assigned usernames and passwords on any computer within the LAN or WAN without installing any software. They only need to type the relevant address in the browser.
The time interval for sending temperature data and the temperature alarm threshold can be set by the upper computer software program,

Characteristics of wireless temperature measurement system

1. Keandalan tinggi
The system adopts advanced and mature sensing technology, wireless transmission technology with digital coding, and unique and advanced wireless communication technology for high-voltage isolation and signal transmission, solving the problems of mutual interference between wireless signals and error correction in data transmission. Accurate reading and high reliability. The sensor undergoes special processing inside and is installed on high-voltage electrical equipment in an equipotential state. It not only has good insulation but also strong electromagnetic interference resistance, ensuring the reliability and safety of equipment operation without any interference or impact on primary equipment.
2. Performa bebas perawatan
The system components can perform online self checks during operation, and the temperature sensor will self calibrate during each measurement. The entire temperature measurement network has become very effective and reliable due to the use of a bus type network topology structure. No manual maintenance is required during normal system operation, mencapai operasi tak berawak.

3. Stable and reliable temperature measurement module
The intelligent temperature measurement module uses wireless communication technology to transmit temperature signals. The temperature signal does not require any wiring from the temperature measurement module to the communication module, and there are no insulation safety issues. The temperature sensor can be installed on the surface of charged objects only the size of a matchbox, directly measuring the temperature of charged objects. Temperature measurement is accurate, dapat diandalkan, and highly accurate, unaffected by other factors.

4. A simple and reliable alarm method
The time interval for sending temperature data (10 minutes to 4 jam) and the temperature alarm threshold can be set by the upper computer software program. The upper computer directly sends downstream commands to the temperature display instrument. Itu temperature display instrument sets and changes the measurement time interval and alarm value of the temperature sensor wirelessly, achieving bidirectional intelligence, greatly facilitating the monitoring requirements of staff in handling different situations. Saat alarm terjadi, the monitoring computer can automatically record and display the alarm time, alarm measurement point name, and alarm status. All alarm information is recorded in the database for reference.