Low-voltage switch loss of voltage reclosing control power transmission detection method and device

Abstract

The invention relates to a method and a device of control power transmission detection, in particular to a method and a device of low voltage switch decompression reclosure control power transmission detection. The device of the low voltage switch decompression reclosure control power transmission detection comprises a main case. A single chip microcomputer is arranged inside the main case. The single chip microcomputer is connected with a bus voltage signal input module, a control key input module, a data input (DI) module, a display module and a relay output module. The control key input module is connected with keys arranged on the front face of the main case. The display module is connected with a light crystal display (LCD) screen in the front face of the main case. The keys are arranged on the lower face of the LCD screen. A wire connecting terminal is arranged on the back face of the main case. The wire connecting terminal corresponds to the busbar voltage signal input module, the DI module and the relay output module. Reclosure can be achieved through detection of a reclosure controller power source, decompression of a busbar voltage input signal and a stage that a controlled low voltage switch is in a partitive case and automatic reclosure control can be achieved by setting delay time so that working intensity of an operator is reduced and reliability of power supply is improved.

Description

technical field [0001] The invention relates to a detection method and device for controlling power transmission, in particular to a method and device for detecting power transmission under voltage loss and reclosing control of a low-voltage switch. Background technique [0002] Due to the safety problem of the power grid, when the transformer is put into operation, it is required to disconnect the load it carries. Therefore, the outlet switches on the low-voltage side have the function of tripping when the power is lost. When the line fails and recloses successfully, the low-voltage outgoing lines of the system are all disconnected due to the instantaneous loss of line voltage. When the power supply is restored, the staff needs to send power to each power distribution room and each outgoing line one by one. It takes up to 2-3 hours, which increases the labor intensity of the staff, prolongs the power outage time, and reduces the reliability of power supply. Contents of th...

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Problems solved by technology

[0002] Due to the safety problem of the power grid, when the transformer is put into operation, it is required to disconnect the load it carries. Therefore, the outlet switches on the low-voltage side have the function of tripping when the power is lost. When the line fails and recloses successfully, the low-voltage outgoing lines of the system are all disconnected due to the instantaneous loss of line voltage. When the power supply is restored, the staff needs to send power to each power distribution room and each outgoing line one by one. It takes up to 2-3 hours, which not only increases the labor intensity of the staff, but also prolongs the power outage time and reduces the reliability of power supply

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