Distributed photovoltaic grid-connected protection switch

• Main Authors: TAN XINGXIANG, XU DAKE, LI WEIZHUO, XU YUNBING, GAO HUI
• Format: Patent
• Language: Chinese; English
• Published: 02.07.2024
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-REDRADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, E.G. USINGPHOTOVOLTAIC [PV] MODULES

The utility model belongs to the field of photovoltaic power generation, and particularly relates to a distributed photovoltaic grid-connected protection switch. The technology comprises a protection box, a controller is installed in the protection box, the controller is electrically connected with a current sensor used for monitoring current, the current sensor is located outside the protection box, and the controller is electrically connected with a first temperature sensor used for monitoring line temperature and a relay used for opening and closing a circuit. The first temperature sensor and the relay are both located outside the protection box, a second temperature sensor used for monitoring the ambient temperature is installed on the top of the protection box and electrically connected with the controller, and the controller is used for receiving and processing information transmitted by the current sensor, the second temperature sensor and the first temperature sensor. And on-off of the relay is contro