First, the system overview The system includes two parts of the upper and lower crew. The lower crew is the motor monitor. It is mainly responsible for collecting the motor operating data (voltage, current, phase angle, active and reactive power), and performs calculations based on the collected data. Control motor protection. The upper computer adopts an industrial control computer, and each motor monitor is connected through a 485 bus. The "motor monitoring system" software is run on the upper computer, and the data sent by the lower computer is compressed and saved, and the economic operation is analyzed based on the real-time data and historical data. Fault warning.
Second, the typical application program (Figure omitted)
Cement plant (vertical kiln) typical application plan
Third, the program features
1. The collection accuracy is high. The motor monitor uses a professional multi-function electrical parameter acquisition chip with high conversion accuracy.
2. Monitor and protect the motor in real time to protect the safety of the equipment.
3. Network monitoring can check the operation status of each motor in the factory's internal network to facilitate device management.
4. The historical operating data and fault records of each motor can be checked at any time to facilitate the maintenance personnel to perform equipment maintenance.
5. Economic operation, according to the historical operating data of the motor, automatically generate economic operating analysis results, equipment load situation at a glance, convenient for equipment management personnel to select the motor to avoid energy waste.
6. Equipment early warning, the system analyzes the historical data and real-time data of the motor, and gives an early warning of the possible abnormality of the motor.
IV Conclusion In today's fierce international and domestic competition, cement companies need to use the factory's advanced information technology, automation and other advanced technologies to transform the traditional industry of cement, improve the level of management, so that the traditional industry highlights the new industry efficiency growth point. This program has realized the protection and information management of the motor, the most important electrical equipment in industrial enterprises, thereby increasing the competitiveness of cement companies and bringing the overall benefits to cement companies.