Comprehensive fault control method for polymorphic power quality management device
A power quality and comprehensive control technology, applied in the direction of circuit devices, emergency protection circuit devices, electrical components, etc., can solve the problem that the system control strategy control method has not been optimized and improved, so as to prevent device overload, protect safety, and protect equipment safety Effect
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[0037] Example
[0038] In this embodiment, as figure 2 As shown, a multi-state power quality control device mainly includes: over-voltage protection device, input switch cabinet, 10kV / 380V step-down transformer, soft charging device, phase-shifting transformer, 3*n power unit modules, grounding resistance, bypass It is composed of open switch cabinet and output switch cabinet.
[0039] Among them, the output end of the overvoltage protection device is connected to the input switch cabinet, 10kV / 380V step-down transformer, and bypass switch cabinet respectively; the input switch cabinet is connected to the 10kV winding of the phase-shifting transformer; the 10kV / 380V step-down transformer is connected to the soft charging device; The soft charging device is connected with the third winding of the phase-shifting transformer; the bypass switch cabinet is connected with the output switch cabinet; the 3*n group 690V secondary winding of the phase-shifting transformer is connected with...
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