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Automatic insulation detection system of constant-speed motor

A detection system and automatic technology, applied in the direction of electric motor generator test, test dielectric strength, etc., can solve the problems of motor insulation change, difficult to find, etc., achieve the effect of avoiding accidents, wide application range, and improving technical management level

Active Publication Date: 2015-12-16
BEIJING SHOUGANG INT ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an automatic insulation detection system for constant-speed motors, which solves the problem that it is difficult to detect when the insulation of the motor changes

Method used

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  • Automatic insulation detection system of constant-speed motor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Set the motor to be detected on the screen of the PLC control and data acquisition system and the database 6, and realize the motor insulation detection through the insulation detection manual automatic transfer switch 3, the main circuit safety guarantee intermediate relay 4 of the constant speed motor, and the motor insulation detection working contactor 5 For the conduction of the circuit, the motor to be detected is detected by the motor leakage current signal acquisition device 1, and the detected signal is converted into an analog signal that can be uploaded by the measurement signal transmitter 2, and uploaded to the PLC control and data acquisition system And the database 6, through the PLC control and data acquisition system and the database 6 to judge the acquisition signal. When the motor insulation detection value is normal, the PLC control and data acquisition system and the database 6 send a motor normal signal to the PLC system of the production line, and ...

Embodiment 2

[0033] Set the motor to be detected on the screen of the PLC control and data acquisition system and the database 6, and realize the motor insulation detection through the insulation detection manual automatic transfer switch 3, the main circuit safety guarantee intermediate relay 4 of the constant speed motor, and the motor insulation detection working contactor 5 For the conduction of the circuit, the motor to be detected is detected by the motor leakage current signal acquisition device 1, and the detected signal is converted into an analog signal that can be uploaded by the measurement signal transmitter 2, and uploaded to the PLC control and data acquisition system And the database 6, through the PLC control and data acquisition system and the database 6 to judge the acquisition signal. If there is a problem with the insulation of the motor, an audible and visual alarm for motor failure is sent on the screen of the PLC control and data acquisition system and the database 6...

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Abstract

The invention, which belongs to the electric control field, provides an automatic insulation detection system of a constant-speed motor. A motor leak current signal collecting device, a measuring signal transmitter, an insulation detection hand-operated and automatic changing switch, a constant-speed motor main circuit safety assurance intermediate relay, and a motor insulation detection work contactor are installed in a field motor control cabinet. When the insulation resistance of the motor needs to be detected automatically, the insulation detection hand-operated and automatic changing switch is changed into an automatic state and circuit breakers QF of groups of electric machines for roller are turned off; and when the detection data carries out alarming, an accident motor is replaced, the insulation detection hand-operated and automatic changing switch is changed into a hand-operated state, and a motor main circuit power supply is turned on manually. The system has the following advantages: no normal using function of the original production line is affected; the equipment repairing and maintenance time is reduced; and production losses caused by an insulation accident of the motor are reduced.

Description

technical field [0001] The invention belongs to the technical field of electrical control, and in particular relates to an automatic insulation detection system for a constant-speed motor. It is suitable for motor insulation detection of various voltage levels and different capacities. It can make statistics on the insulation of the motor, find the change rule of the motor insulation according to the statistical data of the motor insulation, and do a good job of maintenance and inspection of the motor with gradually reduced insulation, reducing the normal production of the production line. In the process, due to the sudden damage of the motor insulation, the parking accident rate is avoided, and the huge loss to the production caused by this is avoided. Background technique [0002] In the metallurgical industry, there are many constant-speed motors. The operating environment of many motors is not only high in temperature, but also has high water mist and high humidity. In a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12G01R31/34
Inventor 刘燕吕冬梅孙靖宇张玉杰刘克清刘自春段青荣
Owner BEIJING SHOUGANG INT ENG TECH
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