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73 400Hz Power Meters: The "Precision Steward" of Aviation and Specialized Power Supply Systems Among the electricity meter family, there is a special member silently guarding the deck lights of aircraft carriers, the testing equipment in aircraft hangars, and the uninterruptible power supply of data centers—the 400Hz power meter. Unlike ordinary civilian 50Hz or 60Hz electricity meters, the 400Hz power meter is specifically designed for medium- and high-frequency specialized...
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