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power system

power system

program overview

power supplies are widely used in modern electronic products, which need to have certain anti-interference ability, isolation and protection functions. different countries and regions have a series of certification standards for various power supplies entering the market to ensure the quality of power products. itech has a rich product line of power test instruments, including ac and dc sources, ac and dc loads, power analyzers, and its9500 power module automatic test system. the test power range is from dozens of w to 1152kw, the test accuracy of output voltage can reach 0.025% 0.025%fs, and the current accuracy can reach 0.05% 0.05%fs.

main criteria

  • iec62040-2/gb 7260.2

    sj/t 10541

    sj/t 10542

  • 《electromagnetic compatibility (emc) requirements for uninterruptible power supply (ups)》

    《general specification for anti-interference ac regulated power supply》

    《test method of anti-interference ac regulated power supply》

test items

ems test item 9

▪ electrostatic discharge immunity, contact discharge 4kv, air discharge 8kv
▪ rf electric field radiation immunity, maximum test field strength 3v/m
▪ electrical fast transient burst immunity, maximum test level 1kv
▪ surge (impact) immunity, maximum test level 2kv
▪ rf conducted disturbance immunity, maximum test level 10v
▪ power frequency magnetic field immunity, test field strength 3a/m
▪ voltage sag, short-time interruption and voltage variation immunity, according to iec61000-4-11
▪ immunity of attenuated oscillation wave according to iec61000-4-18

ems test item 9

▪ conducted disturbance voltage, 150khz-30mhz, qp/av
▪ radiation disturbance, 30mhz-1ghz, qp
▪ harmonic current emission test according to iec 61000-3-2
▪ voltage fluctuation and flicker test according to iec 61000-3-3

other industry solutions

shanghai suoshen electronics is widely used in many industries, such as medical treatment, automotive electronics, home appliances, lighting, electrical appliances, power supply, power facilities and so on

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