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  • Where Are Industrial Frequency Battery Chargers Used in Metro Systems?

    Where Are Industrial Frequency Battery Chargers Used in Metro Systems?

    Apr , 16 2026
    In a metro system, many critical devices operate behind the scenes. One of them is the DC battery charger. It charges backup batteries during normal operation and supplies DC power when the grid fails. Although high-frequency chargers are smaller and more efficient, industrial frequency (SCR-based) chargers are still widely used in metro systems. The reason is simple: rail infrastructure prioritiz...
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