Vacuum Pressure Impregnation Equipment VPI System
Brief 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. Vacuum pressure impregnation is a key process in quality control and production efficiency management, ensuring a more uniform and compact film for superior insulation performance.
Main Components
- Vacuum pressure impregnating tank system
- Paint storage tank system
- Vacuum system
- Hydraulic system
- Water cooling system
- Pressurized air drying system
- Pneumatic valve system for repainting
- Electric control system
- Ventilating system
General Parameters
| Tank Dimensions (mm) |
Vacuum Degree Limit |
Leakage Rate |
Heating |
Cooling |
Working Pressure |
Remark |
| φ1200x1600 |
≤500pa (no load) |
≤100Pa.Ls |
Optional |
Optional |
≤0.6 |
Applicable for H class dry-type transformer |
| φ1600x1800 |
≤500pa (no load) |
≤100Pa.Ls |
Optional |
Optional |
≤0.6 |
Applicable for H class dry-type transformer |
| φ1800x2000 |
≤500pa (no load) |
≤100Pa.Ls |
Optional |
Optional |
≤0.6 |
Applicable for H class dry-type transformer |
| φ2000x2200 |
≤500pa (no load) |
≤100Pa.Ls |
Optional |
Optional |
≤0.6 |
Applicable for all |
| φ2400x2200 |
≤100pa (no load) |
≤100Pa.Ls |
Optional |
Optional |
≤0.6 |
Applicable for all |
| φ2500x2500 |
≤100pa (no load) |
≤100Pa.Ls |
Optional |
Optional |
≤0.6 |
Applicable for all |
| φ3200x2500 |
≤50pa (no load) |
≤100Pa.Ls |
Optional |
Optional |
≤0.6 |
Applicable for all |
Tank & Storage System Structure
Tank Structure: Vertical type equipped with inspection hole lamp and window, liquid level display, air inlet, safety valve, and safety interlocking system. Includes overpressure alarms and automatic decompression valves.
Paint Storage: Vertical type with magnet paint filters (200 mesh), stainless steel ball valves, and comprehensive liquid level monitoring.
Production & Customization
Frequently Asked Questions
1. What equipment can I purchase for transformer production?
We offer a full range of machinery including CT/PT Winding Machines, Transformer Winding Machines, APG Clamping Machines, Foil Winding Machines, and specialized Vacuum Impregnation Equipment.
2. How is the quality of the VPI system guaranteed?
Quality is ensured through a rigorous process including pre-production samples before mass production and a comprehensive final inspection of all systems before shipment.
3. What are the main benefits of using Vacuum Pressure Impregnation?
It significantly improves moisture resistance, heat dissipation, electrical conductivity, and the mechanical strength of coils compared to standard impregnation methods.
4. Can the tank dimensions be customized for specific needs?
Yes, we provide various tank sizes ranging from φ1200mm to φ3500mm, with optional heating and cooling systems to meet specific industrial requirements.
5. What technical expertise supports your equipment manufacturing?
Our equipment is backed by 25 years of industry experience, featuring 11 patented products and a workforce of over 200 skilled specialists across 8 production workshops.
6. What international delivery and payment terms are accepted?
We support multiple delivery terms including FOB, CFR, CIF, and EXW. Payments can be processed via T/T, L/C, Western Union, or Cash in USD, EUR, or CNY.
Pirooz Power
