First Understand What is an On-Load Tap-Changer.
An on-load tap-changer is a device that can operate and transform the tap of the transformer under the excitation or load state of the transformer, thereby adjusting the output voltage of the transformer.
What is the Basic Principle of the On-Load Tap-Changer?
The basic principle of the on-load tap-changer is to realize the switching between the taps in the transformer winding without interrupting the load current. Therefore, the number of turns of the winding is changed, that is, the voltage ratio of the transformer is changed, so as to achieve the purpose of adjusting the voltage.
The basic conditions that the on-load tap-changer must meet:
(1) The current is continuous during the switching process.
(2) No short circuit occurs between the taps during the switching process.
What is the Function of the On-Load Tap-Changer?
In the power system, voltage quality is one of the important indicators of power quality. The load of the power system fluctuates greatly, which will cause the system voltage to fluctuate greatly. In order to stabilize the voltage of the grid and improve the voltage quality, the most effective measure is to use the on-load switch to adjust the voltage.
The stability and reliability of the on-load tap-changer directly affects the safe and stable operation of the transformer and affects the voltage quality level of the entire power system.
It can not only inverse voltage regulation, reactive power distribution, and load current regulation in the power system, but also can be used as a means to regulate voltage and current with load on special transformers used in chemical and smelting industries.
What is an On-Load Tap-Changer Transformer Oil Purifier?
Why Should We On-Load Tap-Changer Use an Online Oil Filtration Machine?
The insulating oil in the oil compartment of the transformer on-load tap-changer produces free carbon and various solid particles due to arcing caused by frequent switching changes. In addition, the oil will absorb moisture, the withstand voltage of the insulating oil will decrease, the contact performance of the switch will decrease, and the contamination in the oil will further increase.
It is understood that the on-load tap-changer should be cleaned or filtered every 1-2 years or 5000-10000 times of tap change or when the breakdown voltage is lower than 25KV. For the tap changer with frequent tap change operations during operation, it is advisable to use a charged oil purification or an online oil purifier.
Function of Online On-Load Tap-Changer Transformer Oil Purifier
The on-load tap-changer online oil purification device can be used as the bypass circulation filter of the transformer on-load tap-changer to solve the problem of the deterioration of the insulating oil in the on-load tap-changer oil chamber. The device is used in conjunction with the transformer on-load tap-changer and can perform charged purification under the normal operation of the transformer system. It can effectively remove impurities such as free carbon and metal particles in the insulating oil in the on-load tap-changer, and reduce trace moisture to ensure the breakdown voltage and service life of the oil. The on-load tap-changer online oil purifier can ensure that the electrical, physical, and chemical indicators of the insulating oil such as flash point, moisture content, breakdown voltage, and cleanliness are normal.
JZ Series Online On-Load Tap-Changer Transformer Oil Purifier
1. JZ online on-load tap-changer transformer oil filter is developed and produced by YUNENG, which can ensure the normal and safe operation of related main electrical equipment during the maintenance period.
2. The moisture content of the oil can be reduced and free carbon and metal debris can be removed during the normal operation of the transformer system.
3. It can ensure the breakdown voltage of the transformer oil, prolong the service life of the oil, and realize the function of recovering the transformer oil.
4. It can improve the safety and reliability of the on-load tap-changer and prolong the maintenance period.
If you want to know more about the on-load tap-changer online oil filtration machine, or have other questions and problems about filtering oil, please contact YUNENG. As a company specializing in the production of oil filtration devices, we can provide you with the best relevant solutions at the fastest speed.