DC switchboard of ShchPT series is designed for application in auxiliary power supply system of normal operation of shop power units in DC networks with rated voltage 220V; for application in emergency power supply system; for reception from rectifier unit (main power supply) or from accumulator battery (backup power supply) and transfer of DC voltage to feeders of outgoing lines; for control during operation: current of charge/discharge of accumulator battery, current of recharging of accumulator battery.
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