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A method for detecting the effectiveness of the protection function for abnormal power failure of the stator of the crane motor

A motor stator and power loss protection technology, which is applied in the field of effective detection of the abnormal power loss protection function of the crane motor stator, can solve the problems of low automation, easy to miss hidden dangers, and low efficiency, so as to reduce difficulty, facilitate maintenance guidance, and improve The effect of detection efficiency

Active Publication Date: 2021-08-06
GUANGDONG INSPECTION & RES INST OF SPECIAL EQUIP ZHUHAI INSPECTION INST
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  • Claims
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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a method for detecting the effectiveness of the protection function of the abnormal power loss of the crane motor stator, which is used to solve the problem that the on-site detection of the effectiveness of the protection function of the abnormal power loss of the crane motor stator relies on the subjective experience of the inspector, and the efficiency is low , The degree of automation is low, and it is easy to miss hidden problems

Method used

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  • A method for detecting the effectiveness of the protection function for abnormal power failure of the stator of the crane motor
  • A method for detecting the effectiveness of the protection function for abnormal power failure of the stator of the crane motor
  • A method for detecting the effectiveness of the protection function for abnormal power failure of the stator of the crane motor

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Embodiment Construction

[0031] The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

[0032] Please refer to figure 1 A method for detecting the effectiveness of the protection function for abnormal power loss of the stator of a crane motor disclosed in this embodiment includes the following steps:

[0033] S1. Install the detection system on the control cabinet of the crane;

[0034] S2. Start the detection system;

[0035] S3. Through the menu operation detection system, simulate different fault types of motor stator power loss;

[0...

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Abstract

The invention discloses a method for detecting the effectiveness of a crane motor stator abnormal power loss protection function, comprising the following steps: S1. Installing a detection system on a control cabinet of the crane; S2. Starting the detection system; Different fault types of motor stator loss of power; S4. According to different fault types, corresponding shifting operations are performed to simulate the dangerous working conditions of the crane; S5. The detection system performs data collection, data display and recording. The invention solves the difficulty of cumbersome on-site manual verification procedures, facilitates the on-site test of the inspectors, reduces the difficulty of inspection and detection, improves the inspection efficiency, finds potential safety hazards in advance to the greatest extent, and gives the cause of the failure according to the inspection results of the inspection system, which is convenient Guide maintenance.

Description

technical field [0001] The invention relates to the technical field of crane fault detection, in particular to a method for detecting the effectiveness of a crane motor stator abnormal power loss protection function. Background technique [0002] The crane shall have a forward and reverse contactor fault protection function to prevent the motor from being de-energized while the brake is still energized, causing the motor to stall and causing heavy objects to fall. That is, when the fault of the forward and reverse contactor causes the motor to run out of control, the brake should be applied immediately. [0003] Bridge (gate) cranes, especially bridge (gate) cranes that lift molten metal and other dangerous goods, must be equipped with motor stator abnormal power loss protection devices to prevent the forward and reverse contactors of the lifting mechanism from failing and the brakes not working. Turn off the power and switch on in time, causing heavy objects to fall. Howe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34G01R31/00
CPCG01R31/00G01R31/34
Inventor 戚政武梁敏健彭晓军杨宁祥陈英红林晓明
Owner GUANGDONG INSPECTION & RES INST OF SPECIAL EQUIP ZHUHAI INSPECTION INST
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