1.Overview of Transformer Vacuum Oil Injection Equipment:
Transformer vacuum oil injection equipment is used for vacuum oil
injection during transformer manufacturing and maintenance
processes, ensuring that there are no bubbles or impurities inside
the transformer, improving its insulation performance and
operational reliability.
2.Main functions of transformer vacuum oil injection equipment:
Vacuum treatment:Vacuum removal of gas and moisture inside the
transformer.
Oiling:Inject insulating oil in a vacuum state to ensure that the
oil is pure and free of bubbles.
Filter:Remove impurities and moisture from the oil through a
multi-stage filtration system.
3.Composition of Transformer Vacuum Oil Injection Equipment:
Vacuum pump:Used for vacuuming.
Filling pump:Used for injecting insulating oil.
Filtration system:Including coarse and fine filtration to ensure
the cleanliness of the oil.
Control system:Automated control with monitoring and alarm
functions.
Oil tank:Store insulating oil.
4.Technical parameters of transformer vacuum oil injection
equipment:
Vacuum degree:It can reach below 0.1Pa.
Oil injection speed:Adjustable, usually 10-100L/min.
Filtration:Up to 1 micron or less.
Power supply:380V/50Hz or customized.
Operation temperature:-10 ℃ to 50 ℃.
5.Application fields of transformer vacuum oil injection equipment:
Transformer manufacturing: Oil injection for new transformers.
Transformer maintenance: replacement and replenishment of old
transformer oil.
Power system: maintenance of transformers in substations and power
plants.
6.Advantages of Transformer Vacuum Oil Injection Equipment
Efficient:Automated operations to improve efficiency.
Reliable:Ensure the insulation performance of the transformer.
Environment protection:The filtration system reduces oil waste and
pollution.
7.Maintenance and upkeep of transformer vacuum oil injection
equipment:
Regular inspection:Check the vacuum pump, oil injection pump, and
filtration system.
Replace the filter element:Regularly replace the filter element of
the filtration system.
Cleaning equipment:Keep the equipment clean and prevent
contamination.
8. Operation method of transformer vacuum oil injection equipment:
By conducting a vacuum test to check the strength of the fuel tank,
the local elastic deformation should generally not exceed twice the
thickness of the tank wall, and the tightness of the vacuum system
should be checked.
1. Vacuum the transformer oil tank at a uniform speed, reach the
specified vacuum degree, and maintain it for 2 hours before
starting to inject oil into the tank (usually the evacuation time
is 1/3 to 1/2 of the exposure time to air). The oil injection
temperature should be slightly higher than the body temperature;
2. Stop injecting oil into the transformer at a speed of 3-5 t/h,
about 200mm from the top of the tank, and continue vacuuming for
more than 4 hours;
3. Transformer oil replenishment: When the transformer is refilled
with oil after vacuum oil injection, it needs to be injected
through the oil storage tank oil injection pipe. It is strictly
prohibited to inject oil from the lower throttle. When refilling,
the oil flow should be slowly injected into the transformer until
it reaches the specified oil level, and then let it rest for 12
hours.
