Phase failure protection device and control method for multi-redundant intelligent charge quantity display

Abstract

A phase-break protection device with multiple redundant intelligent charging quantity display, including a phase-break protector and a protection relay, a phase-break protector including a comprehensive unit and two sets of independent working units with the same structure, a comprehensive unit, and two sets of The working units exchange information through two-machine communication; the working unit includes: current sampling module, processor module, dynamic drive module, voltage detection module and power supply module; the integrated unit includes: integrated processor module, communication module, display module and Integrated power supply module; the control method includes: starting, determining the main control machine and the hot standby machine, and the main control machine performs control work: collecting, processing and analyzing and logically judging the current signal; outputting or stopping the output of the drive power supply; according to the drive power supply The detection result of the voltage makes a decision whether to switch the working unit; the phase failure protection device has high reliability, can provide a basis for fault analysis and display and alarm in real time, and its control method is scientific, rigorous and safe.

Description

technical field [0001] The invention relates to a circuit protection device and a control method, in particular to a phase failure protection device and a control method for a multiple redundant intelligent charging quantity display suitable for an AC electric switch machine on a railway line. Background technique [0002] The railway line changes the running path of the train through the turnout, and the equipment that changes the position of the turnout is called a switch machine; according to the difference of the action power supply, it is divided into a DC electric switch machine and an AC electric switch machine; the AC electric switch machine uses a three-phase motor , when the three-phase power supply loses a phase, the current of the other two phases increases rapidly, causing the winding of the three-phase motor to be burned due to excessive temperature rise. When a phase failure occurs, the action power supply of the switch machine is cut off in time through the p...

AI Technical Summary

Problems solved by technology

[0007] 1. Low reliability, when a certain device fails to work normally, it will directly cause the switch to fail to complete the conversion, cause the failure of the driving equipment, affect the driving efficiency, and even cause the railway to be paralyzed;

[0008] 2. There is no power display, no intuitive and effective means of maintenance and prevention;

[0009] 3. Failure analysis basis cannot be provided

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