What are the differences in measurement indicators of SF6 gas comprehensive tester

The measurement indicators of SF6 gas comprehensive tester mainly include humidity, purity, and decomposition products, which have different measurement purposes, methods, and applications. The following is a detailed comparison and summary of these measurement indicators:

1. Humidity measurement

① Measurement purpose: Humidity measurement is mainly used to detect the moisture content in SF6 gas. Moisture is one of the impurities in SF6 gas, and excessive moisture content can affect the insulation performance and operational stability of equipment.

② Measurement method: Usually, principles such as resistance capacitance method, dew point method, or electrolysis method are used for measurement. Among them, dew point method is widely used due to its high accuracy and stability.

Application: Humidity measurement is crucial in the filling, operation, and maintenance of SF6 gas, as it can promptly detect and address issues of excessive moisture in the gas.

2. Purity measurement

① Measurement purpose: Purity measurement is to detect the purity of SF6 in SF6 gas. Purity is one of the important indicators for measuring the quality of SF6 gas, which directly affects the performance and service life of equipment.

② Measurement method: Generally, principles such as thermal conductivity, gas chromatography, or infrared absorption are used for measurement. Among them, thermal conductivity method is widely used due to its simplicity and speed.

③ Application: Purity measurement is essential in the production, filling, and operation of SF6 gas to ensure that the gas quality meets standard requirements.

3. Measurement of decomposition products

① Measurement purpose: Decomposition product measurement is to detect impurities such as low fluoride produced by SF6 gas decomposition under the action of arc, corona, etc. These decomposition products have a corrosive effect on the insulation performance and metal materials of the equipment, and in severe cases, can lead to equipment failure.

② Measurement methods: Usually, electrochemical methods, gas chromatography, or infrared spectroscopy are used for measurement. Among them, electrochemical methods are widely used due to their high sensitivity and good selectivity.

③ Application: Measurement of decomposition products is particularly important in the operation and maintenance of SF6 gas, as it can promptly detect and address issues of excessive decomposition products in the gas, ensuring the safe operation of equipment.

ZC-318 SF6 gas comprehensive tester is a set of SF6 humidity, SF6 purity, SF6 decomposition products testing in one, the original three instruments to achieve the function, concentrated in one instrument. One on-site measurement can complete the three indicators detection, greatly saving the gas in the equipment, reducing the user’s workload and improving the work efficiency.

Kvtester Electronics Technology Co.,Ltd. is a high-tech enterprise specializing in power testing, testing, research and development, production, and sales of testing equipment. It has been engaged in the electrical testing industry for many years, and its products are of high quality. We welcome customers to come and purchase. Service hotline: 0086-27-81778799, to learn more, visit the official website: www.kvtester.com