Patent ID: 11870235
Assignee: LS ELECTRIC CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 4:
5. The self power relay of claim 1, wherein the self power generator includes:
a source power receiver for receiving three phases system powers of a power transmission and distribution line or a power system as the source power;
a rectifying switching circuit for rectifying three phases system voltages and currents of the three phases system powers;
a voltage converter for converting the rectified three phases system voltages to three phases system voltages having a preset constant voltage level; and
a direct current (DC) converter for converting the three phases system voltages having the preset constant voltage level to a DC voltage to generate the driving power as the DC voltage and supplying the driving voltage to the relay unit.