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VPI Dry Type Distribution Transformers
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VPI Dry Type Distribution Transformers。
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ABB Inc.
State Rt. 42, P.O. Box 38
Bland, VA 24315
(276) 688-3325 Fax: (276) 688-4588
www.abb.com/transformers
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VPI Dry Type
Distribution Transformers
112.5 kVA Through 15,000 kVA
600V Through 35 kV Primary Voltage
120V Through 15 kV Secondary VoltageQuality Products...Built With Pride
ABB is the global leader in power and automation technologies, partnering with utility
and industrial customers to improve performance while reducing environmental impact.
We are a full line transformer supplier representing an international community of 58
ABB transformer factories in 30 countries.
Our people make certain that our world renowned quality is exemplified by every
product that bears the ABB name. An experienced and dedicated work force ensures the
quality of our work and your satisfaction with our products. We strive for operational
excellence, lowest manufacturing cost, and short cycle times.
ABB’s mission is to be the leader in delivering quality products and services for
generation, transmission and distribution, industrial processes, mass transit, and
environmental control that meet the needs and requirements of our customers and
contribute to their success. To ensure customer satisfaction, ABB provides value-added,
integrated solutions that are driven by superior technology and performance.
ABB employees are committed to leadership in applying the company’s unique
combination of experience and global resources to meet societal goals for sustainable
growth and clean energy.
1VPI (Vacuum Pressure Impregnation) transformers are ideal for
a range of applications.
ABB’s VPI ventilated dry type transformers
are ideal for most industrial and commercial
applications. These transformers provide
excellent mechanical and short-circuit strength,
no danger of fire or explosion, no liquids
to leak, less weight than comparable cast
coil units, low total ownership costs and
low initial costs. They use a UL listed
220˚C insulation system, regardless of
temperature rating. Low installation,
maintenance and operation costs make
ABB’s VPI transformers a solid investment.
VPI transformers are non-explosive with
high resistance to flame and do not require
vaults, containmentdikes, or expensive fire
suppression systems. VPI transformers are vacuum pressure impregnated with a high temperature varnish to
assure environmental protection in most commercial and industrial applications.
Product Scope:
The VPI Process
• 112.5 kVA-15,000 kVA
• Primary Voltages: 600V-35 kV ABB’s VPI transformer coils are vacuum pressure impregnated in high
temperature polyester varnish. The process includes complete
• Primary BIL: Up to 150 kV
submersion in varnish under vacuum and pressure and regulated curing
• Secondary Voltages: 120V-15 kV using statistically process controlled equipment to ensure consistency.
• Secondary BIL: Up to 75 kV
The finished coils are effectively protected against moisture, dirt, and
most industrial contaminants. ABB’s VPI transformers are generally
Temperature Rise 80/115/150˚C suitable for use indoors or outdoors where people work and breathe.
A 220˚C Class UL Listed insulation system is used on ABB’s VPI
VPI Benefits/Advantages
transformers regardless of specified temperature rating. This system
• No danger of fire or explosion accommodates a standard temperature rise of 150˚C. Optonal
temperature rises of 80˚C and 115˚C and fan cooling allow for
• No liquid to leak
unsurpassed overload capacity.
• 220˚C Insulation Class
• ISO 9001 Registered VPI transformers offer design flexibility and are constantly used for
power upgrades and retrofit designs.
• Emergency Support:
Quick Ship Option (5 days) Special design options:
• Seismic Qualifications
• Custom Coordination
• Special Sound Requirements
• On Site Service • Low X/R Ratios
• Higher Overload Capacity
• Technical Support
• Special Altitude Requirements
• Optional UL and CSA Certification • Retrofit Designs
• Optional Nuclear 1E Certification • Higher Efficiency Requirements
• Special Ambient Conditions
-IEEE 323 - Qualified Life
• Rectifier Transformer Design
Oven curing completes the VPI process.
-IEEE 344 - Seismic Certification • Nuclear 1E Applications
2Core and Coil Construction
Core Construction
ABB’s VPI transformers utilize a
step-lap mitered core construction
to ensure optimum performance and
minimal sound levels. The mitered
core joints allow efficient flux transfer
State Rt. 42, P.O. Box 38
Bland, VA 24315
(276) 688-3325 Fax: (276) 688-4588
www.abb.com/transformers
AV
,ekonaoR
,puorG
namlessuM
ehT
50/40
desiveR
056-74
nitelluB
evitpircseD
VPI Dry Type
Distribution Transformers
112.5 kVA Through 15,000 kVA
600V Through 35 kV Primary Voltage
120V Through 15 kV Secondary VoltageQuality Products...Built With Pride
ABB is the global leader in power and automation technologies, partnering with utility
and industrial customers to improve performance while reducing environmental impact.
We are a full line transformer supplier representing an international community of 58
ABB transformer factories in 30 countries.
Our people make certain that our world renowned quality is exemplified by every
product that bears the ABB name. An experienced and dedicated work force ensures the
quality of our work and your satisfaction with our products. We strive for operational
excellence, lowest manufacturing cost, and short cycle times.
ABB’s mission is to be the leader in delivering quality products and services for
generation, transmission and distribution, industrial processes, mass transit, and
environmental control that meet the needs and requirements of our customers and
contribute to their success. To ensure customer satisfaction, ABB provides value-added,
integrated solutions that are driven by superior technology and performance.
ABB employees are committed to leadership in applying the company’s unique
combination of experience and global resources to meet societal goals for sustainable
growth and clean energy.
1VPI (Vacuum Pressure Impregnation) transformers are ideal for
a range of applications.
ABB’s VPI ventilated dry type transformers
are ideal for most industrial and commercial
applications. These transformers provide
excellent mechanical and short-circuit strength,
no danger of fire or explosion, no liquids
to leak, less weight than comparable cast
coil units, low total ownership costs and
low initial costs. They use a UL listed
220˚C insulation system, regardless of
temperature rating. Low installation,
maintenance and operation costs make
ABB’s VPI transformers a solid investment.
VPI transformers are non-explosive with
high resistance to flame and do not require
vaults, containmentdikes, or expensive fire
suppression systems. VPI transformers are vacuum pressure impregnated with a high temperature varnish to
assure environmental protection in most commercial and industrial applications.
Product Scope:
The VPI Process
• 112.5 kVA-15,000 kVA
• Primary Voltages: 600V-35 kV ABB’s VPI transformer coils are vacuum pressure impregnated in high
temperature polyester varnish. The process includes complete
• Primary BIL: Up to 150 kV
submersion in varnish under vacuum and pressure and regulated curing
• Secondary Voltages: 120V-15 kV using statistically process controlled equipment to ensure consistency.
• Secondary BIL: Up to 75 kV
The finished coils are effectively protected against moisture, dirt, and
most industrial contaminants. ABB’s VPI transformers are generally
Temperature Rise 80/115/150˚C suitable for use indoors or outdoors where people work and breathe.
A 220˚C Class UL Listed insulation system is used on ABB’s VPI
VPI Benefits/Advantages
transformers regardless of specified temperature rating. This system
• No danger of fire or explosion accommodates a standard temperature rise of 150˚C. Optonal
temperature rises of 80˚C and 115˚C and fan cooling allow for
• No liquid to leak
unsurpassed overload capacity.
• 220˚C Insulation Class
• ISO 9001 Registered VPI transformers offer design flexibility and are constantly used for
power upgrades and retrofit designs.
• Emergency Support:
Quick Ship Option (5 days) Special design options:
• Seismic Qualifications
• Custom Coordination
• Special Sound Requirements
• On Site Service • Low X/R Ratios
• Higher Overload Capacity
• Technical Support
• Special Altitude Requirements
• Optional UL and CSA Certification • Retrofit Designs
• Optional Nuclear 1E Certification • Higher Efficiency Requirements
• Special Ambient Conditions
-IEEE 323 - Qualified Life
• Rectifier Transformer Design
Oven curing completes the VPI process.
-IEEE 344 - Seismic Certification • Nuclear 1E Applications
2Core and Coil Construction
Core Construction
ABB’s VPI transformers utilize a
step-lap mitered core construction
to ensure optimum performance and
minimal sound levels. The mitered
core joints allow efficient flux transfer
AIGCVPI干式配电变压器是一种电气设备，其名称中的"Dry Type"表明该变压器采用干式绝缘技术，而非传统的油浸式或气体绝缘式。干式变压器的特点是不含液体介质，而是通过环氧树脂或其他先进绝缘材料作为冷却和绝缘介质，使得在运行过程中不易出现火灾风险，同时具有良好的环境适应性和维护便捷性。
这种类型的配电变压器广泛应用于电力系统中的配网、工业控制、商业建筑、数据中心等场所，由于其结构紧凑、重量较轻、噪音低、散热效率高以及能在各种气候条件下可靠工作等特点，被越来越多地取代传统开放式油浸变压器，在对环保、安全、运行可靠性及能效要求较高的领域得到了广泛应用。干式配电变压器通常具备多种电压等级和容量规格以满足不同场合的需求，并且还可能配备有各种附加功能如自动温控、防潮、防火等，以确保系统的高效稳定运行。
