The best manufacturer of fiber optic temperature measurement systems for switchgear

1. Introduction to Fiber Optic Temperature Measurement System

The switch cabinet transformer fiber optic temperature measurement system adopts fluorescent fiber optic temperature sensing technology, and the light source and fluorescent fiber optic are all independently developed by the manufacturer. It has the advantages of high voltage resistance, no electromagnetic interference, intrinsic safety, long-term reliability, and easy expansion. It can monitor the temperature of various monitoring points such as dry-type transformer windings, switch contacts, and cable joints in step-up box substations used for wind and photovoltaic power in real-time online. It has RS485 and fiber optic communication interfaces, MODBUS, and IEC61850 communication protocols, making the switch cabinet further intelligent, digital, and networked, suitable for all needs of intelligent substations.

2. The main functions of the fiber optic temperature measurement system for switchgear

1) Collect temperature information of transformer windings (dry or oil), dynamic and static contacts of circuit breakers, and cable heads.

2) Using various diagnostic methods to analyze the health status of equipment, including analysis of all device parameter limit exceeding alarms and other judgment methods.

3) Provide sound and light alarms, dry contact output, human-machine interface display of alarm information, etc.

4) Provide an upper computer software system that displays real-time information on each contact point of the current switchgear, as well as historical data on the temperature information of each contact point over a certain period of time.

3. Characteristics of fiber optic temperature measurement device for switchgear

Suitable for various types of box type substations such as European, American, and Huabian substations, real-time collection of temperature information from monitoring points such as dry-type transformer winding cores, circuit breakers, and cable heads;

The fluorescent fiber optic temperature measurement device adopts a touch screen design and is suitable for various high and low temperature environments;

The fluorescent fiber optic temperature measurement method has the characteristics of wide temperature measurement range, high accuracy, and fast temperature measurement speed;

Fluorescent optical fibers are resistant to high temperature, creep, and pollution flashover, and the fluorescent probe can be safely used in any environment;

The fluorescent fiber optic sensor adopts high-quality products, which have the characteristics of small size, good flexibility, bending resistance, and long service life (up to 25 years or more);

The product itself will not reduce the overall insulation and voltage resistance performance of the transformer box.

4. Composition of fiber optic temperature measurement sensors for switchgear

The system consists of fluorescent fiber optic (including sensing head), fiber optic temperature transmitter, fluorescent fiber optic communication software, etc.

5. Fluorescent fiber optic temperature measurement system for switchgear

Temperature data collection and transmission. In the online temperature monitoring system for high-voltage switchgear, the data acquisition and temperature control terminal is the bottom layer of the structure, including temperature measurement sub nodes and collection nodes. The fiber optic temperature sensor is mainly set at the contact part of the high-voltage switchgear, and the data is transmitted to the collection node through the network. The contact temperature acquisition terminal: The operating environment of the high-voltage switchgear is relatively complex, the space is enclosed and narrow, and it faces high voltage and strong electromagnetic environments. After comprehensive comparison, fluorescent fiber optic temperature sensors are selected.

The specific working parameters are as follows, which can be customized

① Working voltage: DC5V or 220V;

② Temperature measurement range: -40 ℃ to+200 ℃;

③ Measurement accuracy: ± 1% ℃ or 1% of the full range;

④ Multi channel temperature measurement: 1-32 channels;

⑤ Anti interference situation: High voltage, strong electromagnetic interference ability.

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