Indoor high-voltage live display device DXN8-Q/T type with self-test function for 10kV high-voltage cabinet cable indicator

           High-voltage live display indicator: It is a safety device directly installed on indoor electrical equipment, intuitively showing whether the electrical equipment is energized. When the equipment is energized, the display window emits a flashing light, warning people that the high-voltage equipment is energized. When there is no voltage, there is no indication. This device is usually installed on incoming busbars, circuit breakers, main transformers, switch cabinets, and other places where it is necessary to indicate whether they are energized.

          Operating principle: Utilizing the principle of electric field coupling between high-voltage electric fields and sensors, it performs inductive (non-contact) sampling for display from a safe distance. The sensor has three units, each connected to the 'A, B, C' three-phase busbars, with no direct contact with the high-voltage energized body and maintaining a certain safety distance. It receives the electric field signal from the high-voltage energized body and transmits it to the display power supply.

          When the equipment is energized, the three-phase indicator lights on the display will light up, indicating that the high-voltage equipment is energized. In case of a grounding fault in the system, the indicator light corresponding to the grounded phase will naturally extinguish.