From previous experience with the maintenance of powerful power-related devices, large power units, power components and the corresponding drivers, the frequency of damage to some electrical circuits is high, of course there will be a variety of failures in the subsequent maintenance, as demonstrated by the fact that the process of repair of electronic equipment associated with the corresponding electronic circuits is the process of finding the corresponding failure point in the maintenance process. We should also adhere to the principle of human ownership, supported by equipment, making full use of human subjective mobility, reducing maintenance costs, starting with malfunctions, analysing circuit principles, time-series relationships, work processes, identifying possible failure points, then identifying failure points, identifying failure elements, including qualitative and quantitative indicators, and then replacing the corresponding devices to restore their inherent performance indicators
1. Inquiries about the failure of the user's frequency transformer, including changes in the external environment before and after the failure, e. G., abnormal power fluctuations, changes in loads
2. Analysis of the possible causes of such malfunctions based on the user's failure description
3. Opens the equipment under repair, identifies the damaged procedures and analyses the feasibility of repair and restoration
Based on the location of the work of the damaged device, analysis of the method of operation of the circuit by reading the circuit, identification of the cause of the damage to the device and some associated electronic circuits
5. Search for relevant devices for replacement
6. In determining all possible failures, all causes are removed, and in doing so, all external conditions are generally required and will not cause further deterioration of the malfunction
When equipment works properly, access to the next program is possible, the system tests older transistor transistors, which have, among other things, the following disadvantages: easy to jump, difficult to re-start, low overload capacity due to rapid development of the igbt and cpu, improved self-diagnostic and fail-safe features within the variable, significantly improving the reliability of the variable if it uses a vector to control the “full-field automatic rectangular compensation function” in the variable, which “starts the rectangular defect” and “results from changes in environmental conditions” will well overcome the high-speed operation of microcomputers within the transformer, calculates the transects needed at the current time, amends and compensates the output voltage rapidly to offset changes in the transformer's output rectangles due to changes in external conditions, and, as a result of improved software development of the variable, it will be able to pre-set all kinds of malfunctions within the transformer and keep them running after failure has been resolved。
