Your Professional Dry Type Transformer Supplier
A national high-tech enterprise focused on the power transmission and distribution sector, integrating R&D, production, sales, and service.Founded during a period of rapid development in China's power industry around the early to mid-2000s, the company capitalized on market demand generated by the construction and upgrading of power grids in Quzhou and surrounding areas. It established its foothold by relying on the local market.
Why Choose Us
Our Certificate
It holds over a hundred independent intellectual property rights and has achieved certifications including ISO9001 Quality Management System, ISO14001 Environmental Management System, ISO45001 Occupational Health and Safety Management System, ISO 50001 Energy Management System, and Social Responsibility Management System.
Advanced equipment
Our manufacturing facility is equipped with advanced machinery such as laser cutting machines, CNC punch presses and press brakes, welding and grinding robots, hydraulic shears, lathes, milling machines, and overhead cranes. We also operate complete surface treatment systems, including powder coating, curing ovens, and shot blasting equipment, ensuring efficient production and high-quality results.
Production Market
Our global footprint spans the Middle East, Southeast Asia, Europe, and Africa, supplying core electrical equipment for demanding industrial environments. With proven products and professional services, we reliably meet diverse technical needs and serve as a trusted partner worldwide.
Our Service
Our service supports you from pre-sales to after-sales. We provide one-on-one consultations to customize packaging solutions, strictly control production to ensure quality and on-time delivery with real-time updates, and offer comprehensive after-sales support for fast responses and a worry-free partnership.
1. It is safe, fire-proof, explosion-proof and pollution-free. It can be directly installed in the load center.
2. Maintenance free and low comprehensive operation cost.
3. It has good moisture-proof performance, can operate normally under 100% humidity, and can be put into operation without pre drying after shutdown.
4. Low loss, low partial discharge, low noise, strong heat dissipation capacity, 150% rated load operation under forced air cooling condition.
5. It is equipped with perfect temperature protection control system to provide reliable guarantee for the safe operation of transformer.
6. Small size, light weight, less space and low installation cost.
Types of Dry Type Transformer
Cast Resin Dry Type Transformer (CRT)
A cast resin dry type transformer (CRT) is a type of transformer that uses epoxy resin to encapsulate its primary and secondary windings. This protects the windings from moisture, dust, corrosion, and other environmental factors that can affect their insulation and performance.
Vacuum Pressure Impregnated Transformer (VPI)
A vacuum pressure impregnated transformer (VPI) is a type of transformer that uses class H polyester resin to impregnate its windings under vacuum and pressure. This eliminates any air gaps or voids in the insulation, enhancing its mechanical strength, dielectric strength, and thermal stability.
Components of Dry Type Transformer
Core and Windings
The primary winding, connected to the power source, conducts alternating current along a circular path around the core to generate a magnetic field. This field induces a voltage across the secondary winding, enabling energy transfer between the primary and secondary voltages.
Insulation
Solid insulation materials ensure electrical separation between the core, windings and winding layers. These materials separate the windings into multiple layers, mitigating potential short circuits and guaranteeing safe energy transmission.
Cooling Mechanisms
The cooling mechanisms, typically a blend of natural convection and forced air cooling techniques, maintain the transformer’s optimal operational temperature. Balancing these cooling mechanisms helps the transformer’s longevity and reliability.
Enclosure and Protection
The enclosure protects the core and windings from the elements and keeps personnel out for safety.
Terminals, Bushings and Connections
Terminals and supplementary components such as bus bars and bushings integrate the external circuits with the transformer’s internal windings and prevent flashovers.
Tap Changer
A de-energized tap changer allows for voltage adjustment. Its essential function is to alter the winding turns ratio for voltage adjustment.
Grounding System
The grounding system redirects redirecting electrical faults away from the transformer, channeling them safely into the ground. This safety measure reduces the probability of electrical shocks, equipment harm, potential fires, injury and death.
Temperature Monitoring and Protection
Temperature monitoring and protection mechanisms prevent overheating, a significant concern in transformer function, and take action if temperatures rise too high, preserving the transformer’s operational integrity.
How Do Dry-Type Transformers Work
The fundamental principle of dry-type transformers is the same as all transformers, adhering to electromagnetic induction law. They achieve voltage step-up or step-down through electromagnetic coupling between the primary and secondary windings, enabling efficient power transmission and distribution. The key difference lies in the insulation and cooling methods:
Insulation Method: Relies on a solid insulation system, such as epoxy resin or fiberglass, which tightly encapsulates the windings to isolate them from air and moisture, preventing short circuits.
Cooling Method: Relies on natural air convection or forced air cooling (via installed fans) to dissipate heat generated during operation.
Main Application Scenarios of Dry Type Transformer
Commercial and Public Buildings
Office buildings, shopping malls, hotels, hospitals, schools, stadiums, and subway stations.
Industrial Manufacturing
Chemical plants, mining facilities, shipbuilding, and other factories with strict fire safety requirements.
New Energy and Infrastructure
Photovoltaic power stations, wind farms, rail transportation, airports, and ports.
High-Tech Industries
Data centers, semiconductor manufacturing facilities, precision manufacturing workshops, and other sensitive loads with high power quality demands.
Packaging and Transportation
FAQ
We are one of the most experienced dry type transformer manufacturers and suppliers in China, specialized in providing high quality customized products. We warmly welcome you to buy dry type transformer for sale here from our factory. For quotation, contact us now.
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