An automatic control method applied to the safe connection of high-voltage circuits

Abstract

The invention discloses an automatic control method applied to the safe connection of high-voltage circuits. The steps are as follows: the electrician operates the rotating handle to make the rotating shaft / interlocking block rotate forward; the interlocking block rotates forward and makes the energy storage mechanism accumulate kinetic energy. When the mechanism and the driving mechanism are on the same straight line, the energy storage mechanism releases the kinetic energy and makes the driving mechanism run. The driving mechanism runs and makes the moving contact of the wiring mechanism move closer to the static contact. Pipeline, transition valve, one-way valve 1, liquid inlet pipe, and delay valve flow into the liquid storage cylinder. In the process, the delay valve is limited by its own unit flow, so that the driving mechanism drives the wiring mechanism. The dynamic / static contact contact needs It takes a certain amount of time, that is, the time for switching the wiring device to the closed state is delayed; when the high-voltage circuit needs to be closed urgently, the electrician reversely operates the handle and reverses the rotating shaft to immediately switch the wiring device to the disconnected state.

Description

technical field [0001] The invention relates to the field of high-voltage circuits, in particular to a method for safely opening a high-voltage circuit. Background technique [0002] In the power system, high-voltage electrical equipment refers to electrical equipment with a voltage level of 1000v and above, high-voltage power supply refers to the power supply of high-voltage electrical equipment, and high-voltage switch refers to equipment connected in series between high-voltage power supply and high-voltage electrical equipment. Putting high-voltage electrical equipment into or out of operation according to the operation needs of the grid, or disconnecting the high-voltage electrical equipment from the grid when the high-voltage electrical equipment fails, in the prior art, the operator needs to manually directly operate the high-voltage switch on site to control the high-voltage The on-off of the power supply, but in the process of turning on the high-voltage power suppl...

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Problems solved by technology

[0002] In the power system, high-voltage electrical equipment refers to electrical equipment with a voltage level of 1000v and above, high-voltage power supply refers to the power supply of high-voltage electrical equipment, and high-voltage switch refers to equipment connected in series between high-voltage power supply and high-voltage electrical equipment. Putting high-voltage electrical equipment into or out of operation according to the needs of the grid operation, or disconnecting the high-voltage electrical equipment from the grid when the high-voltage electrical equipment fails, in the prior art, the operator needs to manually directly operate the high-voltage switch on site to control the high-voltage The on-off of the power supply, but in the process of turning on the high-voltage power supply, a high-voltage arc is easily formed between the contacts at both ends of the high-voltage switch. This arc is easy to contact with the operator's body and cause an electric shock accident, which is less safe. In addition, if the skin of the staff is wet during the operation, it is easy to get an electric shock accident due to exposure to high voltage, resulting in casualties and serious property losses. Therefore, a time-delay switch applied to high-voltage circuits is designed. When the electrician turns on the power, the closure of the high-voltage circuit will be delayed for a certain period of time to increase safety

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