Fault prompting method for electric locomotive main breaker incapable of closing

Abstract

The invention discloses a fault prompting method for an electric locomotive main breaker incapable of closing. When a microcomputer receives a command of closing the main breaker, the information influencing the closing of the main breaker is checked automatically in sequence according to the following order: checking whether a driver controller key is closed, whether a governor handle is in a zero position, whether an emergency icon is in a normal position, whether a passing phase icon is in a normal position, whether an earthing switch is in a normal position and the like. If so, the next detection is conducted; and if not, failure reasons are displayed on a display interface of the microcomputer through an icon corresponding to the detecting steps. If the results of all the steps are positive, the main breaker is closed. The fault promoting method has the advantages that the self-detecting function for detecting that the main breakeris unable to close by the microcomputer is improved; the fault prompting information is very comprehensive; the information detecting interface is straightforward, so that users can find reasons that the main breaker is unable to close in the first time; the maintenance efficiency is improved; the security coefficient of a locomotive in the running process is increased, so that a microcomputer network system is more humanized; and nearly no cost is increased in the whole process. Only the corresponding software of the locomotive needs to be upgraded.

Description

technical field [0001] The invention relates to a fault prompting method, in particular to a fault prompting method in which a main circuit breaker of an electric locomotive cannot be closed. Background technique [0002] As far as electric locomotives are concerned, the main circuit breaker is the main switch between the electric locomotive and the catenary; if the main circuit breaker cannot be closed normally, the electric locomotive cannot obtain power from the catenary, and the locomotive cannot operate normally. Therefore, whether the main circuit breaker can be closed normally is very critical. [0003] In the prior art, when the electric locomotive fails, the microcomputer will disconnect the main circuit breaker in order to protect the safety of the locomotive and the catenary, and at the same time prompt the user with the corresponding fault information. The primary side current is too high, the main transformer pressure is low, the main transformer temperature is...

AI Technical Summary

Problems solved by technology

[0004] However, there is no unified display interface in the existing technology to inform the user that the main circuit breaker cannot be closed, and the prompt information is simple and incomplete. If the user encounters the problem that the main circuit breaker is disconnected and the microcomputer does not prompt, he will be at a loss.

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