What is on-load voltage regulation of transformers? (Part 2)

The principle of on-load voltage regulation is to set multiple taps on the high-voltage winding or low-voltage winding of the transformer. By switching the tap changer, different taps are connected to the circuit to change the number of turns of the winding and then adjust the output voltage. Next, we will introduce in detail the disadvantages of on-load voltage regulation.

Content

●High cost
The structure of on-load voltage regulation transformers is relatively complex and requires special tap changers and voltage regulation control systems, which makes their manufacturing and maintenance costs relatively high. In addition, the operation of on-load voltage regulation transformers also requires a certain amount of energy consumption, increasing the operating cost of the system.

●Reliability issues
Since the tap changer of on-load voltage regulation transformers needs to be switched under load, this places very high requirements on the reliability of the tap changer. If the tap changer fails, it may cause the transformer to be unable to regulate voltage normally and even affect the safe operation of the power system.

●Have a certain impact on the system
When on-load voltage regulation transformers perform voltage regulation operations, they may have a certain impact on the power system. For example, during the voltage regulation process, it may cause voltage fluctuations and current impacts, causing interference to other equipment in the system. In addition, frequent voltage regulation of on-load voltage regulation transformers may also affect the stability of the system.

In Summary

In conclusion, on-load voltage regulation of transformers is an important voltage regulation method. It can automatically adjust the output voltage under load, maintain voltage stability, improve power supply quality, and enhance system flexibility. But at the same time, on-load voltage regulation also has disadvantages such as high cost, reliability issues, and a certain impact on the system. In practical applications, according to specific circumstances, the advantages and disadvantages of on-load voltage regulation need to be comprehensively considered, and the voltage regulation method of transformers should be reasonably selected and used to ensure the safe, stable and efficient operation of the power system.

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