Vacuum Pressure Impregnation Equipment VPI for Motor Transformer Repair
📘 Product Description
Vacuum pressure impregnation plant is mainly used for motor and transformer coil treatment. Under the circumstance of vacuum pressure, the coil is dehydrated and degassed to reduce the impact of water and air on insulation. In the impregnation stage, the inner and outer structure is permeated by insulating varnish to upgrade insulation and improve overall electrical performance.
The purpose of vacuum impregnation is to improve moisture resistance, heat resistance, electrical conductivity, magnetic conductivity, and mechanical properties of motor coils. The treatment ensures coils are thoroughly impregnated and wrapped by a tough, elastic coating. It is a key process for quality control and production efficiency, resulting in a uniform and compact film for superior insulation.
🛠️ Main Components
✔ 2.1 Vacuum pressure impregnating tank system
✔ 2.2 Paint storage tank system
✔ 2.3 Vacuum system
✔ 2.4 Hydraulic system
✔ 2.5 Water cooling system
✔ 2.6 Pressurized air drying system
✔ 2.7 Pneumatic valve system for repainting
✔ 2.8 Electric control system
✔ 2.9 Ventilating system
📊 General Parameters
| Tank dimensions (mm) |
Vacuum degree limit |
Leakage rate |
Heating |
Cooling |
Working pressure |
Remark |
| φ1200x1600 | ≤500pa | ≤100Pa.Ls | optional | optional | ≤0.6 | H class dry-type transformer |
| φ1600x1800 | ≤500pa | ≤100Pa.Ls | optional | optional | ≤0.6 | H class dry-type transformer |
| φ1800x2000 | ≤500pa | ≤100Pa.Ls | optional | optional | ≤0.6 | H class dry-type transformer |
| φ2000x2200 | ≤500pa | ≤100Pa.Ls | optional | optional | ≤0.6 | Applicable for all |
| φ2400x2200 | ≤100pa | ≤100Pa.Ls | optional | optional | ≤0.6 | Applicable for all |
| φ2500x2500 | ≤100pa | ≤100Pa.Ls | optional | optional | ≤0.6 | Applicable for all |
| φ3200x2500 | ≤50pa | ≤100Pa.Ls | optional | optional | ≤0.6 | Applicable for all |
| φ3500x3000 | ≤50pa | ≤100Pa.Ls | optional | optional | ≤0.6 | Applicable for all |
3.1 Tank Structure
🔹 Vertical type with inspection hole lamp and window
🔹 Liquid level display
🔹 Air inlet and safety valve
🔹 Temperature: Room temperature to 80℃
🔹 Safety interlocking system and overpressure alarm
3.2 Paint Storage Tank System
🔹 Vertical structure with inspection accessories
🔹 Magnetism paint filter (200 mesh)
🔹 Stainless steel ball valves on inlet/outlet
❓ Frequently Asked Questions
1. What is the primary use of VPI equipment?
Vacuum Pressure Impregnation (VPI) equipment is mainly used for the treatment of motor and transformer coils to improve insulation, moisture resistance, and overall electrical performance.
2. How is the quality of the equipment guaranteed?
Quality is ensured through a pre-production sample before mass production and a final inspection of all components and systems before shipment.
3. What other types of vacuum equipment can I purchase?
In addition to VPI systems, we offer CT/PT Winding Machines, Transformer Winding Machines, APG Clamping Machines, and Foil Winding Machines.
4. What are the advantages of using this VPI system?
Our equipment provides a more uniform and compact insulation film, utilizes over 25 years of technical expertise, and incorporates multiple patented designs for enhanced production efficiency.
5. What delivery and payment terms are available?
We accept delivery terms including FOB, CFR, CIF, and EXW. Accepted payment types include T/T, L/C, Western Union, and Cash in USD, EUR, or CNY.
6. Can the tank dimensions be customized?
Yes, we offer various tank sizes from φ1200mm to φ3500mm, with optional heating and cooling systems to meet specific transformer or motor repair requirements.
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