Product Overview

Dropstate transformers usually refer to transformers installed on drop fuses or related equipment that can monitor and feedback the drop state. Mainly used in rural power grids,remote suburbs and other power systems that use many drop switches. In these areas, when the line overload fuse blows or the arc tube falls, causing a power outage, the transformer can send out a signal in time to help maintenance and inspection personnel quickly locate the fault point, reduce the time and energy consumption of manual fault finding,and improve Improve emergency repair efficiency and ensure the stability and reliability of power supply.

Structural Features

It is generally composed of transformer body, fixed mechanism and electrical warehouse. The instrument transformer bodycomprises a lower shell and an upper shell that are hinged with each other, and a core induction core that is connected with the ends is installed inside, and is hinged and connected to form a cable slot to cover the arc elimination tube and other components. The fixing mechanism includes a clamp or expansion module, which is used to fixthe transformer on the arc extinguishing tube,and also includes an elastic clamp,etc., which can detect the working temperature and current of the arc extinguishing tube. A circuit board and a mercury switch type sensor connected with the circuit board are arranged in the electrical warehouse.

Working Principle

The status of the transformer is sensed through the built-in mercury switch sensor and other devices.When the transformer is in the normal position, the mercury switch is in a specific state and the circuit is in a certain stable state;and when the installed arc suppression tube falls due to a blown fuse or other reasons, the state of the mercury switch changes, thereby triggering a change in the circuit. This enables the transformer to send out corresponding drop signals through wireless signals, etc., so that staff can locate and judge faults.

Performance Index