Distribution Transformer Vacuum Drying Machine

  • Distribution Transformer Vacuum Drying Machine Manufacturers, Distribution Transformer Vacuum Drying Machine Factory, Supply Distribution Transformer Vacuum Drying Machine
  • Distribution Transformer Vacuum Drying Machine Manufacturers, Distribution Transformer Vacuum Drying Machine Factory, Supply Distribution Transformer Vacuum Drying Machine
Distribution Transformer Vacuum Drying Machine
  • LG VACUUM
  • JIANGSU CHINA
  • 30 DAYS
  • 100 SETS/ YEAR

Variable Pressure Vacuum Drying Machine is adjusted by the variable pressure process, which can effectively solve the rust problem of the iron core during the drying process. is adjusted by the change pressure process, which can effectively solve the rust problem of the iron core during the drying process.

Product Overview:

According to the requirements of the user, the equipment is based on the vacuum drying principle of vacuum processing and vacuum equipment design and production specifications, combined with our long-term experience in transformer production and accumulation,mainly used for drying the body of oil-immersed transformers, amorphous alloy transformer mutual inductor and capacitor . 


According to the requirements of your company, the following technical solutions are proposed to provide the variable pressure processing (33KV and 11KV two options) for the drying of electrical products for transformers of 33KV and below oil-immersed power transformers. For further consultation between the two parties.


During the drying process, the equipment continuously changes the pressure inside the drying tank to make the product heat up evenly, and can eliminate the evaporation water in the tank in time to prevent the iron core from rusting. Because the drying adopts the step-by-step method, the product is less deformed and the drying is more thorough. 


Product Function:

1. The automation level of the equipment and the processing technology level of the products can reach the domestic advanced level, and the quality of the processed products can reach the level of superior products in the industry.

2. With reasonable vacuum system, there is enough condensed water in the low temperature condenser to effectively avoid the contamination of the vacuum pump by the moisture during the drying proces.

3. The equipment is adjusted by the variable pressure process, which can effectively solve the rust problem of the iron core during the drying process.

4. In the heating process, according to the temperature of the body, the pressure in the vacuum tank is reduced to a certain value periodically by automatic pressure alternation for many times, which creates the most suitable conditions for the evaporation of moisture in the insulation of the body and makes the evaporation process of moisture in the drying process in a reasonable state.


Vacuum drying tank system:

1. Horizontal type, effective height means the height from the lower surface of the tank to the inner wall of the tank top is 3000mm. The drying tank adopts single-door method, the tank door is electrically moved sideways.Each set of doors is locked by four sets of air cylinders.

2. Ultimate vacuum ≤ 30Pa (no load, cold);

Leakage rate  ≤500Pa·L/S (no load, cold).

3. The tank is heated by the coil heater. It has four sides (lower, left, right, and rear). The heat transfer oil is used as the heat transfer medium. The heat transfer oil is connected in parallel. The hot oil inlet is as close as possible to the tank door position. There are manual adjustment valves for each channel in the import, and four channels are connected in parallel. The heating coil area meets the process requirements of the variable pressure process. The heating control is controlled by the time proportional. The coil is welded by argon arc in the curved part. Welding is not allowed in the straight pipe part, and the three-walled coil is as far as possible to the bottom. Single-sided coil pressure test is 6.5 kg, the overall pressure test is 8 kg.

4. operating temperature :135±5℃,automatic temperature control and adjustable. Four temperature sensors are arranged in the tank to measure (1) temperature of low-pressure coil and core gap ; (2) the low-pressure coil airway temperature; (3) the high-pressure coil airway temperature; (4) the tank inner space temperature. All temperature sensors require a three-wire platinum with a resistance length of 5000mm. In addition, there is an insulation resistance measurement interface with 6 points.

5. The tank flange is made of long-life silicone rubber O-ring seal structure with high temperature resistance and transformer oil resistance.

6. The tank is insulated with rock wool (thickness 150mm). White color steel plate is armoring with blue edging, and the thickness of the color steel plate is 0.6mm.

7. After the rust is removed inside the tank, spray a 300℃ high temperature resin paint.

8. Two sets of observation window devices are arranged in the drying tank to facilitate observation of indoor conditions.


Details Show:

Vacuum Drying Machine


Vacuum Drying Equipment


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