Detection device for linkage of protection pressing plate of transformer substation

Abstract

The invention relates to a detection device for linkage of protection pressing plates of a transformer substation. The device comprises a box body, a main control board and an upper computer. The maincontrol board is arranged in the box body. The main control board comprises a single-chip microcomputer and an alarm assembly. The single-chip microcomputer is connected with the upper computer. Thesingle-chip microcomputer receives the state of a protection pressing plate and transmits information to the upper computer for checking, and the single-chip microcomputer is in communication connection with the alarm assembly through a serial port. The device has the advantages that the state information of the protection pressing plate is received through the single-chip microcomputer and checked through the upper computer, and due to the fact that the single-chip microcomputer can receive the state information of the protection pressing plate in real time, misoperation of the pressing platecan be effectively prevented, and the safety level of a power grid is improved. Pressing plate misoperation is alarmed in real time, pressing plate mistaken switching and missing switching can be found in time, protection locking, misoperation or refusal is avoided, traffic safety risks are reduced, personal safety is guaranteed, and operation and maintenance personnel can be prevented from driving vehicles to run back and forth in all transformer substations through alarm signals sent by the alarm assembly.

Description

technical field [0001] The invention relates to a detecting device for linkage of a substation protection pressure plate. Background technique [0002] In the smart substation, the soft press plate and the hard press plate are closely related to each other, and there is a sequence of switching on and off. Once the pressure plate is improperly operated, it may cause the protection device to be locked, and in severe cases, it may even cause the protection to malfunction or refuse to operate, affecting the safe and stable operation of the power grid. [0003] At present, in order to prevent safety accidents caused by misoperation of the pressure plate, the "General Regulations for Field Operation of 220 kV Substations" requires that the pressure plate be manually checked twice a year. However, the manual check cycle is long. Before the next press plate check, once the press plate is misoperated, the operation and maintenance personnel will not be able to find it in time, buryi...

AI Technical Summary

Problems solved by technology

However, the manual check cycle is long. Before the next check of the press plate, once the press plate is misoperated, the operation and maintenance personnel will not be able to find it in time, and it will bury the potential safety hazard for the power grid.

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