What Is A Low Voltage Pole Mounted Circuit Breaker? What Is It Used For?

Lv Pole Mounted Circuit Breakers integrates vacuum circuit breaker, disconnector and grounding switch. Compared with traditional high-voltage fixed switchgear XGN2 or XGN66, KYN28, etc., it is necessary to install disconnectors, vacuum circuit breakers and grounding switches separately in the complete set factory, install and debug mechanical interlocks, which are complex and time-consuming, and require high technical skills of workers. After using this product, it is equipped with a multifunctional vacuum circuit breaker, and the switch body has an isolation position, a circuit breaker position, and a grounding position. It is more integrated and systematic, and the installation is simple, fast, convenient and reliable.

The so-called three positions refer to three working positions: 1. The closing position of the main break of the disconnector is connected, 2. The isolation position of the main break is separated, and 3. The grounding position on the grounding side. The three-position isolating switch actually integrates the functions of the isolating switch and the grounding switch, and is completed by a knife, so that mechanical interlocking can be achieved to prevent the main circuit from being energized and the grounding knife is closed, because a knife can only be in one position, unlike the traditional isolating switch, the main knife is the main knife, the ground knife is the ground knife, and the two knives may be operated incorrectly. The three-position isolating switch uses a knife, and the working position of a knife is unique at a certain moment, either in the main switch closing position, or in the isolating position or the grounding position.

The three-position switch actually integrates the functions of the isolating switch and the grounding switch, and is completed by a knife, so that mechanical interlocking can be achieved to prevent the main circuit from being energized and the grounding knife is closed, because a knife can only be in one position, unlike the traditional isolating switch, the main knife is the main knife, the ground knife is the ground knife, and the two knives may be operated incorrectly. The three-position isolating switch uses a knife, and the working position of a knife is unique at a certain moment, either in the main switch closing position, or in the isolating position or the grounding position. In traditional GIS, the isolating switch and the earthing switch are two functional units, which are controlled by electrical interlocking. The latest design uses a three-position isolating switch to avoid the possibility of misoperation.