High-voltage test alarm

Abstract

A high-voltage test alarm comprises an alarm starting return circuit and an alarm module. The alarm starting return circuit comprises a relay, a remote control module, a starting return circuit direct current power source and a relay normally open contact. A relay is connected between a control box of an alternating current withstand voltage instrument set device and a switch in parallel, wherein the switch is used for controlling a power source of the control box of an alternating current withstand voltage instrument. The starting return circuit direct current power source, and the relay normally open contact and the remoter control module are connected in series to form an electric return circuit. The alarm module is installed on a transformer voltage-sharing ball of the alternating current withstand voltage instrument set device by means of insulation process. The alarm module comprises a signal receiving module, an alarm direct current power source, a light alarm module and an audible alarm, wherein the light alarm module and the sound alarm module are connected with each other in parallel to form a parallel branch, and then the parallel branch is connected with the alarm direct current power source in series through the signal receiving module. The high-voltage test alarm is applicable to the field of electric power project (electric test) and capable of effectively avoiding occurrence of person electric shock accidents in the process of the high-voltage tests.

Description

technical field [0001] The application belongs to the technical field of electric power systems, and relates to a new type of high-voltage test alarm, which is applicable to the field of electric power engineering (electrical test), and can effectively prevent personal electric shock accidents during high-voltage tests. Background technique [0002] According to the "Safety Regulations", special fences must be set up during the high-pressure test and the "stop, high-voltage danger" sign must be hung outward, and special personnel must be supervised during the test. In the actual work, there are some behaviors that do not implement the "Safety Regulations", such as the steps in the operation without the permission of the person in charge; there is no special supervision during the pressurization process, and the singing is incorrect and randomly interrupted; After the test, the test power switch was not disconnected in time, the test product was not discharged and short-circu...

AI Technical Summary

Problems solved by technology

2. Disadvantages and deficiencies: During the use of the sound and light alarm fence, there are two operations of turning on and turning off the power supply. At the same time, the alarm scanning area needs to be adjusted before use. This undoubtedly adds two operations to the originally complicated high-voltage test process. If scanning Improper adjustment of the area may also lead to false alarm signals

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