A device and method for automatically increasing the terminal voltage of a low-voltage three-phase line
A terminal voltage and low voltage technology, applied in the field of power supply, can solve the problems of small transfer power, poor three-phase unbalanced effect, unbalanced line branch current, etc., and achieve the effect of reducing line loss and low three-phase current unbalanced degree
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[0025] Such as figure 1 As shown, the present invention sets a main control unit 2 at the output end of the transformer 1, and installs a commutation voltage regulation device 3 at the user input end, and the phase commutation voltage regulation device 3 includes a commutation switch 4, a power transfer compensation unit 5 and a reactive power Compensation unit 6; the commutation switch, power transfer compensation unit and reactive power compensation unit are all equipped with a voltage and current information acquisition module and a wireless communication module, and communicate with the main control unit through the wireless communication module.
[0026] The main control unit mainly includes a control circuit board, which presets parameters such as the normal voltage range value and the normal range value of the current unbalance degree, and judges whether the line voltage and current are within the normal value range, and communicates to the commutation switch, power The...
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