VPI Transformer

Product details

 

Vacuum Pressure Impregnated (VPI) transformers are alternatives to liquid insulated and cast resin transformers.

 

This technique involves impregnating the transformer with polyester or epoxy resin under a vacuum atmosphere, so that air bubbles,dust and small particles are substituted with dielectric resin. The subsequent polymerization in oven, through controlled thermal cycles, solidifies conductor materials, insulation and resin in a single piece, to attain superior mechanical and electrical characteristics.

 

VPI Dry Transformer

Maximum Capacity 2500KVA, up to11kv
Application for Commercial, Industrial and residential site

High temperature polyester varnish
Auto-extinguishing and maintenance free
Customized Service
E2 Environmental Class
C2 Climate Class
F1 Fire Resistance Class

Product Features

High and low voltage winding insulation materials is used Nomex and many times by VPl vacuum pressure impregnation equipment,advanced agent-free varnish,external high-intensity H-class insulation seal and high temperature curing,operating conditions to ensure that no local discharges.

Transformer winding mechanical strength,thermal conditions are good (high and low voltage coils are used above 200℃ in long-term use of Nomex insulation) of the continuous structure,to avoid the multi-layer cylindrical coil voltage is high,poor heat dissipation,easy to thermal breakdown and the shortcomings of low mechanical strength,thereby improving product reliability.

Product Advantages

VPI transformer is available from 30KVA to 2500KVA with insulation grade F(155oC) and H(180oC). It can be equipped with Enclosure Protection up to IP56. Several advantages are listed below
1, High mechanical strength.
2, Void free insulation.
3, No temperature fluctuation.
4, Easy maintenance.
5, Less prone to fire hazard.

 

VPI Dry Transformer Custom

Our team of experts specializes in the design and manufacturing of VPI transformers, ensuring the highest quality and performance standards. With our in-depth knowledge and experience, we're able to provide solutions for a wide variety of applications, including industrial, commercial, and power distribution systems.

At Ryan , our commitment to customer satisfaction and unparalleled expertise in VPI transformer technology make us the perfect partner for your power management needs. We're ready to work with you to develop a custom solution that meets your unique requirements and exceeds your expectations.

 

 

 

 

 

 

 

If the above VPI dry type transformer technical data cannot meet your needs, please send your requirements to the email address: ericwu@redq.cc

 

 

Q: What is VPI in transformer?

A:Vacuum pressure impregnated (VPI) transformers are vacuum pressure impregnated with a high temperature polyester varnish. These transformers provide an impeccable mechanical and short circuit strength so as to favour a number of commercial and industrial applications.

 

Q: Which is better VPI or cast resin?

A: The VPI method of construction provides the most reliable and cost-effective (the windings can be removed and repaired unlike with Cast Resin transformers), as well as electrically and mechanically sound windings.

 

Q: What is the difference between VPI and CRT transformers?

A: CRT has higher mechanical rigidity than VPI which gives a higher short circuit withstand capability. The insulation of the winding is of grades F(155ËšC) and H(180ËšC). This type of transformer is available from 5KVA to 30MVA ratings.

 

http://www.ryan-transformers.com/