Power supply device of intelligent current relay

• Main Authors: KAMURO, KOH, CHANG XIANRONG, LI YANGJUN, CAO SEN, MENG JIE, GAO BINGYI, ZHANG QIANG, XU XINCHENG, HE ZICHUN
• Format: Patent
• Language: Chinese; English
• Published: 27.10.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The utility model discloses a power supply device of an intelligent current relay, which relates to the field of electronics, solves the problem that a zero sequence current protection function fails when a single-phase alternating-current power supply for supplying power to the intelligent current relay fails, and comprises a single-phase alternating-current power supply, a direct-current power supply and a power supply switching device, the input end of the power supply switching device is connected with a single-phase alternating-current power supply and a direct-current power supply, and the output end of the power supply switching device is connected with the intelligent current relay; the power supply switching device controls and switches the single-phase AC power supply or the DC power supply to supply power to the intelligent current relay. In the application, the power supply switching device controls the single-phase AC power supply or the DC power supply to supply power to the intelligent current