Low-voltage passive intelligent tuning filtering device

The utility model discloses a low-voltage passive intelligent tuned filtering device, and belongs to the technology field of a passive power filtering device. The utility model consists of a group of filtering circuit branches that include main filtering channels and are arranged in a case body. One end of the filtering circuit branch is connected with a busbar and the other end of the filtering circuit branch is connected with the ground. The utility model is characterized in that filtering channels of at least one filtering circuit branch are matched and provided with tuned filtering channels. An AC contactor KM1 and a current sampling instrument are connected and arranged on the filtering circuit branch. The tuned filtering controller connected with the current sampling instrument is connected with the AC contactor KM1 and the tuned filtering channel respectively. The low-voltage passive intelligent tuned filtering device has novel design and simple and reasonable structure and can detect the harmonic current real time through the intelligent tuned controller to regulate the harmonic frequency of the filtering circuit branch to protect the filtering device and the distribution transformer of users, thereby facilitating the filtering device to operate more effectively and economically.