Vacuum oil injection equipment is used for high-end electrical equipment

November 10, 2025
Latest company news about Vacuum oil injection equipment is used for high-end electrical equipment

Have you ever encountered an accident where a newly manufactured transformer or high-voltage cable experiences partial discharge, a decline in insulation performance, or even breakdown shortly after being put into operation? Often, the problem does not come from the equipment itself, but is hidden in the insulating oil - bubbles and moisture. Vacuum oil injection technology is precisely a standard process developed to completely eliminate this hidden danger.

 

I. What is vacuum Oil Injection? Innovative craftsmanship that transcends tradition

 

Vacuum oil injection is not simply "adding oil". It is a precise process that efficiently dehydrates and deglows electrical equipment in a high vacuum environment and simultaneously completes oil injection.

 

You can understand it as performing a precise operation on the equipment that is "bubble-free and microbe-free"

 

Create a vacuum: First, apply high vacuum to the tank that needs to be filled with oil (such as a transformer oil tank) to significantly reduce the internal pressure.

 

Breaking down barriers: In a vacuum environment, the boiling points of dissolved water and gases in the oil decrease, causing them to boil rapidly, precipitate out and be extracted.

 

Clean injection: Under vacuum conditions, the purified insulating oil is smoothly injected. In an environment free from air interference, the oil can thoroughly penetrate every insulating gap.

 

Ii. Why is vacuum Oil Injection Indispensable? Four core values

 

Ultimate insulation, ensuring safety

 

Eliminating the "bubble killer" : The bubbles remaining in the insulating paper can become conductive paths under high voltage, causing partial discharge and eventually leading to insulation breakdown. Vacuum oiling can completely eliminate air bubbles and increase dielectric strength by more than 30%.

 

Resist aging and extend life

 

Eliminating the "culprits of aging" : Moisture and oxygen are the main catalysts for the aging of insulating oil and solid insulating materials. Vacuum oil injection has greatly eliminated these two major culprits, extending the service life of the equipment by several years or even decades.

 

Improve efficiency and reduce costs

 

One-time success, no rework: Traditional oil injection often requires repeated degassing and standing, which is time-consuming and labor-intensive. Vacuum oil injection is achieved in one step, significantly shortening the installation and commissioning cycle and reducing the overall operation and maintenance costs.

 

It is strict in response and stable and reliable

 

For equipment with ultra-high voltage levels (such as above 500kV) or operating in harsh environments (such as offshore wind power and hot and humid regions), vacuum oil injection has become a mandatory process to ensure their long-term stable operation.

 

Iii. Our Solution: Born for "Stability"

 

We are well aware that every oil injection is related to the electrical safety of a circuit, a substation and even a city. Therefore, our vacuum oil injection equipment is designed as

 

High efficiency and all-round performance: With a high ultimate vacuum degree and fast pumping speed, it can quickly create an ideal oil injection environment for large transformers and other equipment.

 

Intelligent control: PLC automatic control realizes the entire process of vacuuming, oil injection, oil replenishment and oil discharge is fully automated, eliminating human errors.

 

Durable and sturdy: The core components are made of internationally renowned brands, ensuring continuous and stable output under heavy working conditions.