Smart Power Transformer body/Core vacuum drying chamber, vacuum drying Oven for transformer windings coil.Email:transformercore99@gmail.com/Whats app:+86 18632727083
Vacuum Drying Oven
The vacuum drying oven is designed for drying the parts and elements of transformers, reactor and related electrical products. The transformer drying equipment adopts variable pressure drying principle suggested by Dr.
Description
The vacuum drying oven is designed for drying the parts and elements of transformers, reactor and related electrical products. The transformer drying equipment adopts variable pressure drying principle suggested by Dr. Moll from Germany. It can save about 30-45% time of drying compared with conventional vacuum drying system. Rectangle and round chamber can be option according to the production need.
Applications
1. 10-110KV/100MVA level transformer body drying
2. 110-500KV level transformer winding drying
3. 110-1000KV level current/voltage reactor body drying
4. Capacitor drying
5. Other electrical material drying
Characteristics
1. With advanced heating principle, the vacuum drying oven enjoys high production efficiency.
2. Variable pressure with heating temperature ensures smooth drying condition.
3. Modular design, PLC automatic control with touch screen operation
4. Convenient operating with complete parameter indicating, recording and alarm.
Main Components of Transformer Drying Equipment
1. Vacuum chamber
2. Trolley and driving device
3. Vacuum pump
4. Low temperature condensate
5. Heating
6. Pneumatic pipeline
7. Cooling water
8. Hydraulic
9. Control
Parameters of Vacuum Drying Oven
Vane Pump Leybold brand Germany
PLC Mitsubishi brand.
VACUUM DRYING OVEN FOR TRANSFORMER WINDINGS
A vacuum drying oven is a multipurpose device. It is used to dry transformer windings, electric motor rotors, powders and pastes, adsorbents, metal ceramics, wood etc. In this article we focus on the vacuum drying oven for transformers.
When drying of transformer windings becomes necessary
Drying of transformer windings is important at all stages of transformer life cycle. This is due to the fact that moisture reduces the dielectric strength of the insulation and accelerates its aging. Moisture can enter the windings even during transformer assembly, making it necessary to dry the wingdings. The dielectric strength of a well dried oil-impregnated cardboard is 20-25 times higher than that of untreated cardboard.
Contamination with water also occurs during operation of the transformer, again, demanding action. The drying process can be performed in a vacuum drying oven. While it is not the only method of winding drying, it is still one of the most popular due to simplicity and the uniformity of moisture removal from the entire volume of the insulation.
Vacuum drying oven: how it works
A vacuum oven dries transformer windings in several stages. First, the insulation is heated, releasing water from the internal layers to the outside as vapor. The vapor is then carried from the surface of the insulation to the outside. the The motion of water inside the insulation is due to the different concentrations of moisture and temperature at different points of the windings. Moisture moves from high concentration spots and hotter points to the portions with lower temperature.
Water migration from the internal layers of the windings is facilitated by thorough heating of the transformer core.
vacuum drying ovens
manufactures vacuum drying ovens for transformer windings and many other materials. Each oven is produced for specific conditions and capabilities available on customer site. Here are the things that can be select:
oven dimensions;
the heating method: oil, steam, IR etc;
door drive: mechanical, pneumatic or hydraulic;
Transformer Vacuum Drying Oven
Transformer Vacuum Drying Oven is applied for drying of oil immersed transformers, transformers, capacitors and other products body,comparing the traditional hot air circulation drying, ordinary vacuum drying and low-frequency drying Equipment, the processing time can be shorten about 1/3, energy consumption can be decreased by 30% -50% and after treatment, the minimum water content of insulating materials can be 5ppm. Comparing the investment with the kerosene vapor phase drying oven,it is 25% -45% of that kind.It is with reliable and energy saving process. Transformation of vacuum drying oven is currently used for voltage 220kv and 110kv ,below the power transformer 500kv ,below transformer and other paper-insulated power. Transformer vacuum drying oven is the best choice for drying equipment.
Work.
Specification :Rectangular Design:
Ultimate vacuum Leakage rate Operating temp. Temp. accuracy
VFT-4025 4000×2500×2500,VFT-4030 4000×3000×3000,VFT-5030 5000×3000×3000,VFT-5035 5000×3000×3500,VFT-6040 6000×4000×4000,VFT-7545 7500×4000×4500,VFT-8545 8500×4500×4500
,VFT-9050 9000×4500×5000,
Power Transformer Core/body vacuum drying chamber, vacuum drying Oven for transformer windings
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