This system addresses the current situation where high-voltage motors cannot achieve comprehensive real-time online monitoring and fault warning. By comprehensively monitoring and analyzing the operating parameters of the equipment, an online monitoring device for the comprehensive state of high-voltage motors has been developed. This device enables comprehensive state monitoring of high-voltage motors and can conduct online monitoring of the motor's operating status and insulation status without interfering with the current operation of the motor. It can promptly alarm at the initial stage of a fault, enabling the timely detection of potential hazards, providing technical support for precise fault warning and intelligent diagnosis of equipment faults, and providing necessary information to on-site technicians to reasonably arrange maintenance, thereby avoiding missed inspections and over-inspections, reducing maintenance costs, improving equipment reliability, and enhancing the safety operation level of the equipment.
By capturing the voltage and current signals of the running motor, various faults of the unit can be diagnosed, including: electrical faults occur on the voltage signal, mechanical faults will be reflected in the stator current of the driving motor, and the peaks of various frequencies on the current spectrum correspond to the fault characteristic frequencies of each component in the operating system of the unit. Therefore, by analyzing the spectra of the stator current and voltage collected, the mechanical and electrical fault information of the unit can be captured.
The collection device can be directly installed on the high-voltage cabinet to add current transformers, or it can use the built-in transformers of the equipment to collect current signals and upload them to the processing unit. By installing infrared thermal imaging sensors in the motor slip ring chamber to collect the slip ring temperature, it can be uploaded to the local device and then to the system.
• Test covers all data of electrical parameters
• Trend management of multi-parameter data of power quality
• Electrical and mechanical faults of the unit and data trend management
• Insulation data
• Three-phase temperature data of the slip ring
• Fault diagnosis
• Motor mechanical diagnosis
• Mechanical fault diagnosis
• Display of diagnostic reports and maintenance reports
• Expert-level time-domain waveform analysis and high-definition spectrum graph analysis
• Low-frequency data plotting
• High-frequency data plotting
• Motor fault waveform characteristics
No. | Technical Parameters | Technical Indicators |
1 | Software Operation | The software operation interface is user-friendly and compatible with the latest Windows 10 operating system. |
2 | Fault Intelligent Diagnosis | By collecting the current and voltage spectrum signals of the motor in the pump unit, it can intelligently diagnose and analyze early electrical faults such as stator winding inter-turn short circuit, rotor bar breakage, and uneven air gap in the screw-type pump motor; mechanical faults such as bearing wear and gear meshing. |
3 | Power Supply Monitoring | The power supply is an important component of the system. It diagnoses problems with the power supply and provides analysis methods, and analyzes the root cause of the motor's faults. |
4 | Mechanical Fault Diagnosis | Through spectral analysis, mechanical faults such as bearing wear and gear meshing can be diagnosed. |
5 | Electrical and Mechanical Problems | It can diagnose electrical faults and mechanical faults, and can determine whether the motor's problem is mechanical or electrical. |
6 | Motor Record Management | Group the units in a tree structure for easy management. The maximum number of managed units can reach 1500. And the relevant records of each unit can be entered according to time. |
7 | Bearing Database | Through the bearing database, the faults of rolling bearings can be effectively judged. The listed bearings are from major bearing manufacturers in the world, with no less than 10,000 items. At the same time, relevant bearing data can be added to further improve the bearing database. |
8 | Alarm Function | The software provides different color indications for different states of the unit on the screen, helping factory engineers quickly and conveniently browse the status of the motor. |
9 | Diagnosis Report | 1. The software can automatically generate Chinese and English fault diagnosis reports, including power supply, motor electrical and mechanical faults, etc. 2. Generate standard format word reports. |
10 | Waveform Analysis | 1. Users can observe time domain and spectrum graphs. 2. Perform analysis operations such as zooming in and out and marking. 3. Effectively annotate and analyze characteristic frequencies. |
11 | Data Trend Analysis | 1. Trend graphs display the electrical parameters collected quickly, allowing a better understanding of the changes in motor parameters; 2. Trend graphs display the fault diagnosis parameters of the motor, allowing a better understanding of the changes in motor faults; 3. It can save motor trend data for more than 5 years, allowing a better understanding of the trend changes of the unit. |
12 | Data Openness | 1. Use MS SQL database. 2. Data can provide an open interface for third parties to access. |
13 | Network Access | 1. The client software can be installed on any computer. 2. The client software is controlled by a dongle, and only authorized personnel can modify the software configuration. 3. Users with the client installed can access the server's data within the local area network. |
14 | Operating Interface | Full Chinese operating interface. |
