1. Early on, it was not advisable to use the pre-inspection and maintenance method for switch-mode power supplies, as domestic phase-controlled power supply components tend to age easily and have low reliability. Maintenance through pre-inspection and repair does have some positive significance. However, the high-frequency switch-mode power supplies of the 1990s utilized new components, which are of high quality, operate stably and reliably, and come with comprehensive self-protection functions and a high degree of automation. Continuing to use the traditional pre-inspection and maintenance approach would not only fail to uncover potential issues but could also cause some man-made faults due to repeated disassembly. We have experienced instances in our actual work where disassembly led to damage.
2. Regular Data Analysis Required We regularly print out various information recorded by our switch-mode power supply computers, which allows for easy access to the historical data of the power supply itself, such as when power outages occurred, when battery charging and discharging took place, and the current working status of the electroplating power supply, etc. Through the analysis of this data, we can identify certain issues and, if necessary, make timely data adjustments. Aircraft Ground Power 2, 36V Aircraft Power Supply 1, 400HZ Frequency Converter Power Supply 7, 115/200V Power Supply 2, 27V DC Power Supply 5, 400HZ Power Supply 12, Aircraft Power Supply
3. Installation of Dust-Proof Isolation Devices Necessary We are aware that rooms without dust-proof isolation devices tend to have higher dust concentrations. Since most switch-mode power supplies are cooled by forced air cooling, the air flow inevitably carries dust into the equipment. Given that switch-mode power supplies are not meant to be frequently disassembled and cleaned, excessive dust accumulation can lead to electrical leakage and short circuits during humid weather, causing malfunctions. Our unit experienced an automatic shutdown of a module within less than six months of operation. Upon technical inspection, it was found that the internal dust had buried the electronic components, and the confirmed cause of the malfunction was dust-induced short circuits. With the deterioration of the environment, dust pollution has become one of the main sources of contamination. A 2000A module is valued at around 70,000 to 80,000 yuan, and installing an isolation device in a power room costs approximately 8,000 yuan. Therefore, from both economic and reliability perspectives, the installation of dust-proof isolation devices is necessary, and those with the means should also consider installing air conditioning equipment.
4. Timely Implementation of Centralized Monitoring With the expansion of communication equipment, electroplating power equipment is increasing, and their distribution points are becoming more scattered. This results in a growing number of personnel needed for maintenance, creating a contradiction with downsizing and efficiency improvements. One important way to resolve this contradiction is through the implementation of centralized monitoring. The implementation of centralized monitoring can be gradually carried out based on existing conditions, without the need to strive for immediate perfection. By implementing centralized monitoring, we can achieve a reduction in personnel and increased efficiency, address the timeliness of fault handling, and also reduce the number of spare parts. This is a win-win situation and deserves to be widely promoted.
