Maintenance of electrical equipment in high voltage distribution systems
As China's national economic development accelerates and its gross national product (GDP) continues to grow, it reflects the expansion of industrial enterprises and the gradual improvement of power system structures within them. When high-voltage electrical equipment is in operation, preventing malfunctions is a critical concern for all staff members. Based on the development of industrial electrical equipment, this paper explores the necessary measures for maintenance and inspection, aiming to promote the sustainable growth of enterprises.
**I. Introduction**
The production and operation of factories across China rely heavily on large-scale electrical equipment and machinery. Due to the diversity in types and quality of electrical equipment, maintaining and managing such systems is both complex and specialized. In actual operations, the maintenance process becomes even more challenging, requiring personnel to have deep knowledge of electrical systems. This ensures that maintenance efforts are not only effective but also scientifically sound, contributing to the smooth and safe operation of high-voltage equipment.
**II. Operation and Maintenance Requirements of High-Voltage Power Distribution Systems**
The high-voltage power distribution system includes components such as metal fittings, insulators, busbars, lightning arresters, voltage and current transformers, isolating switches, and high-voltage circuit breakers. Under normal conditions, these devices should operate smoothly and efficiently. Proper maintenance ensures the reliable functioning of the entire system. Key requirements include:
- Implementing SCADA data monitoring to ensure operating parameters remain within acceptable limits.
- Using DSM and LM to optimize load curves and avoid overloads during peak times.
- Applying DMS for voltage/reactive power optimization and load balancing to reduce network losses.
- Conducting mechanical calculations under various stress and weather conditions to ensure safety factors meet standards.
In daily maintenance, it's essential to consider the system’s stability and develop comprehensive, reasonable plans to ensure continuous and secure operation.
**III. Maintenance and Inspection of Electrical Equipment**
Regular maintenance and inspections are crucial for the proper functioning of electrical equipment. Early detection of potential issues can prevent failures, reduce downtime, and minimize economic losses, ultimately improving enterprise efficiency and promoting rapid development.
1. **Routine Inspection**
Routine checks are scheduled based on time intervals to ensure equipment operates safely. These inspections help identify early signs of failure and provide timely solutions, reducing the risk of major breakdowns.
2. **Periodic Inspection**
Regular inspections focus on checking specific parts of the equipment according to set schedules. This helps detect defects early, allowing for preventive actions and efficient repairs.
**IV. Equipment Parameter Supervision**
During maintenance, it's important to monitor equipment parameters to ensure they function correctly. Parameters like temperature, cooling systems, and power supply stability must be checked regularly. For example, if temperatures rise too high, automatic trip protection should activate, and cooling fans should engage. Transformers must be tested periodically, and dual power supplies should be available for critical loads.
**V. Precautions in High-Voltage Equipment Maintenance**
Maintaining high-voltage equipment involves two main aspects: implementing maintenance procedures and monitoring equipment conditions. To ensure safe and stable operation, the following steps are essential:
1. **Improve Maintenance Procedures**
Before disassembling faulty equipment, understand the root cause of the problem. Clean contact points and wiring, and check for external faults. If internal issues persist, proceed with careful disassembly and testing.
2. **Determine Maintenance Focus Based on Failure Impact**
Not all faults have the same effect. Some may only affect indicators, while others could stop the equipment entirely. Maintenance strategies should reflect the severity of each issue.
3. **Repair or Replace Components**
Some components should be replaced based on usage and reliability, while others may not require regular overhaul. Careful replacement prevents unnecessary disruptions.
4. **Focus on Cleaning and Inspection**
Even with automation, visual inspections of components remain vital. Checking for leaks, missing parts, and thermal discoloration can prevent small issues from becoming major failures.
**VI. Safety Management of Electrical Equipment**
1. **Strengthen Regular Maintenance**
Consistent maintenance ensures equipment remains in good working condition and reduces the risk of unexpected failures.
2. **Implement a Responsibility System**
Assign clear roles and responsibilities to maintainers, operators, and inspectors. Hold individuals accountable for mistakes and reward those who perform well.
3. **Enhance Training for Maintenance Personnel**
Continuous education and training improve the skills and awareness of maintenance staff, ensuring they can handle complex tasks effectively.
4. **Complete Maintenance Procedures**
Establish clear documentation and handover processes to ensure consistency and accountability. Different personnel should handle different stages of maintenance to avoid errors and inefficiencies.
**Conclusion**
The management and maintenance of high-voltage equipment play a vital role in the smooth operation of enterprises. Relevant departments should invest more in these areas to ensure adequate resources and support. While current maintenance practices still face challenges, improvements in training, procedures, and oversight can lead to better outcomes. By addressing existing issues and setting clear goals, maintenance efforts can become more efficient, scientific, and effective, ultimately ensuring the safe and reliable operation of high-voltage equipment.
40L Agriculture Drone,Agricultural Spraying Drone,Drones Agriculture Sprayer,Agricultural Sprayer
Xuzhou Jitian Intelligent Equipment Co. Ltd , https://www.jitianintelligent.com