Insulation monitoring system for motor in power plant
An insulation monitoring and motor technology, applied in the field of motors, can solve the problems of heavy workload and low efficiency, and achieve the effects of improving work efficiency, ensuring measurement accuracy, and reducing labor intensity
Inactive Publication Date: 2017-12-29
成都瑞联汇诚机电设备有限公司
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Problems solved by technology
When inspectors need to manually conduct a comprehensive insulation measurement on the motors of the whole power plant, they need to frequently shuttle around the power plant with a megohmmeter. The workload is heavy and the efficiency is low, and large measurement errors are prone to occur.
Method used
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Embodiment Construction
[0012] The embodiments of the present invention will be further described below in conjunction with the drawings.
[0013] Such as figure 1 As shown, a power plant motor insulation monitoring system provided by the present invention includes a central processing unit, a measuring voltage module, a relay array, a sampling circuit, a data acquisition module, a display screen, a keyboard, and an alarm module.
[0014] The central processing unit is connected to the measuring voltage module, the measuring voltage module is used for voltage conversion, and the external power supply is converted into the power required for measuring the insulation of the motor; the measuring voltage module is connected to the relay array, and the measuring voltage module converts the converted voltage Loaded on the relay, the relay array is used to connect and switch between the measuring voltage module and each motor, and the measured voltage is sequentially loaded on each motor. The relay array is conn...
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The invention relates to an insulation monitoring system for a motor in a power plant. The system comprises a central processor, a measurement voltage module, a relay array, a sampling circuit, a data collection module, a display screen, a keyboard, and an alarm module. The central processor is connected with the measurement voltage module, and the measurement voltage module is connected with the relay array. The relay array is connected with the sampling circuit, and the sampling circuit is connected with the data collection module. The data collection module is used for collecting corresponding voltage, current and resistance signals of the sampling circuit, and transmitting the signals to the central processor. The display screen, the keyboard and the alarm module are respectively connected with the central processor. The system achieves the centralized automatic monitoring of the insulation of the motor in the power plant under the condition that the performances of the motor are not affected, improves the work efficiency while guaranteeing the measurement accuracy, reduces the labor intensity of a routing inspection worker, and provides an important guarantee for the safety operation of the motor.
Description
Technical field [0001] The invention relates to the technical field of electric motors, in particular to a motor insulation monitoring system for power plants. Background technique [0002] In order to ensure safety, the motor needs to be measured for insulation before use, and it is allowed to start only when the insulation is good. The electric motor is an important part of the power plant, and a power plant has nearly 100 electric motors of various types. When the inspectors need to manually conduct a comprehensive insulation measurement of the motors of the entire power plant, they need to frequently shuttle the hand-held megohmmeter to all corners of the power plant. The workload is large and the efficiency is low, and large measurement errors are prone to occur. Summary of the invention [0003] The purpose of the present invention is a high-efficiency and high-accuracy power plant motor insulation monitoring system. [0004] In order to achieve the above purpose, the techni...
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IPC IPC(8): G01R27/02G01R31/12
CPCG01R27/025G01R31/1227
Inventor 甘昌海
Owner 成都瑞联汇诚机电设备有限公司