Device and method for preventing people entering transformer chamber by mistaken under electrified condition

Abstract

The invention relates to a device and a method for preventing people entering a transformer chamber by mistaken under an electrified condition. After a transformer body and high-low voltage side cables are installed completely, electricity is taken from two phases of the low voltage side in the transformer chamber and connected to a rectifier in the device. The rectifier provides 24V direct current voltage to a warning lamp and an infrared opposite irradiation alarm. Once the transformer is electrified to operate, the low voltage side of the transformer is electrified, and the warning lamp on a gate of the transformer chamber is electrified to give out light to represent that the transformer is in the operation state. The a light projector and a light receiver of the infrared opposite irradiation alarm are respectively arranged on two edges of the gate in the transformer chamber, so once an external worker bursts into the transformer chamber, the infrared rays emitted by the projector will be shielded, the light receiver fails to receive the infrared rays and immediately feeds the condition back to a host, so an alarm bell arranged in the transformer chamber is allowed to give out an alarm to prompt the worker about the fact that the transformer is in the electrified operation state and prompt the worker to timely get away from the transformer chamber.

Description

technical field [0001] The invention relates to the technical field of electrical operation, in particular to a device and method for preventing accidental entry into a transformer room when power is on. Background technique [0002] In the construction process of metallurgical engineering, the transformer is an important electrical power device. The commissioning process is often accompanied by power outages and power transmission operations. However, the transformer room is different from the power distribution room. The transformer does not have the five-proof device of the power distribution cabinet. Construction personnel To judge whether the transformer is running on site, in addition to contacting the electrical personnel in the main control room, you can only rely on your ears to hear the sound of the transformer in operation. Once there is a problem of poor communication or communication failure among the on-site staff , the staff is very likely to enter the transfo...

AI Technical Summary

Problems solved by technology

[0002] In the construction process of metallurgical engineering, the transformer is an important electrical power device. The commissioning process is often accompanied by power outages and power transmission operations. However, the transformer room is different from the power distribution room. The transformer does not have the five-proof device of the power distribution cabinet. Construction personnel To judge whether the transformer is running on site, in addition to contacting the electrical personnel in the main control room, you can only rely on your ears to hear the sound of the transformer in operation. Once there is a problem of poor communication or communication failure among the on-site staff , the staff is very likely to enter the transformer room by mistake when the transformer is energized and running. In severe cases, personal electric shock casualties may also occur.

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