With the rapid development of China's economy and the progress of industrial technology, the scale of China's power supply market has reached 328.8 billion CNY in 2020 and it is expected to increase to 540 billion CNY in 2025 according to authoritative research institutions. In the power industry, variable frequency and voltage power supply is an important testing equipment for export electrical manufacturers, which matches different power supply test conditions in different countries. The industry standard of variable frequency and voltage power supply is perfect, which is of great significance to support the manufacturing and exporting of national electrical equipment.
The original SJ/T10691-1996 General Standard for Variable Frequency and Voltage Power Supply has been used for over 21 years, and the actual requirements and technologies of the industry have undergone significant changes. In 2017, Ainuo Instrument proposed the revision proposal to the National Committee for Standardization of Electronic Measuring Instruments (TC153), which was finally adopted after years of work and expert support.
The revision creatively put forward the rated output power and current requirements of the inverter power supply to solve the problem that the power load capacity in the industry is not open and transparent to users. At the same time, it also puts forward the requirement of variable frequency and voltage power supply noise to solve the problem of noise pollution degree caused by users to the environment. The revision improves the variable frequency and voltage power supply specifications and promotes the sustainable and healthy development of electrical test power supply industry.
