Optical fiber sensing technology is a sensing technology formed with the development of optical fiber and optical fiber communication technology. Due to the characteristics and advantages of wide working range, good linearity, strong anti-interference performance, small size, and high reliability, it is widely used in equipment monitoring in many special environments such as high voltage, large noise, high temperature, and strong corrosion.

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The fluorescent optical fiber temperature sensing technology used in this system has the advantages of anti-high voltage, no electromagnetic interference, long-term reliability, easy expansion, etc. It can monitor the temperature of box transformer, high-voltage switchgear, ring network cabinet, outdoor and underground cable joints of power generation and power supply system in real time.

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A variety of power supply and control lines in the low-voltage drawer cabinet are arranged in a relatively narrow space, so that the heat is gathered and should not be dissipated, causing the temperature to rise. Excessive temperature will cause the current carrying capacity of the circuit breaker to decrease, which is different from the actual setting value, which is easy to cause the circuit breaker protection trip. The fluorescent optical fiber temperature sensor is a temperature measurement technology based on optical signals. The sensor has no conductor structure, is insulated and resistant to electromagnetic interference, and has a small size and a long life. It is very suitable for direct measurement of hot spots of connectors in this scenario.

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The system adopts fluorescent optical fiber temperature sensing technology. The light source and fluorescent optical fiber are all imported components. It has the advantages of high voltage resistance, no electromagnetic interference, long-term reliability and easy expansion. It can monitor the temperature of various monitoring points such as dry-type transformer winding, switch contact and cable joint in the step-up box-type substation used by wind power and photovoltaic in real time. It has RS485 and optical fiber communication interface, MODBUS and IEC61850 communication protocol, the switchgear is further intelligent, digital and networked, which is suitable for all the needs of intelligent substations.

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The system adopts fluorescent optical fiber temperature sensing technology. The light source and fluorescent optical fiber are all imported components. It has the advantages of high voltage resistance, no electromagnetic interference, long-term reliability and easy expansion. It can monitor the temperature of various monitoring points such as dry-type transformer winding, switch contact and cable joint in the step-up box-type substation used by wind power and photovoltaic in real time. It has RS485 and optical fiber communication interface, MODBUS and IEC61850 communication protocol, the switchgear is further intelligent, digital and networked, which is suitable for all the needs of intelligent substations.

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