Product Overview
The 50 kVA dry type transformer is a small, three phase, oil free, fire resistant, and environmentally friendly distribution transformer with epoxy resin casting insulation. This step up step down transformer is suitable for 6.6kV/10kV/0.4kV power distribution systems, primarily used for voltage conversion, power distribution, and stable power supply. The product is compact, has low losses, low noise, requires no maintenance, and has strong short circuit withstand capability. It can operate safely for extended periods in indoor, basement, small factory, building, and computer room environments, and is widely used in industrial, construction, municipal, and small power grid applications.
Our 50 kVA dry type transformers have a wide range of applications: they can be used as step down transformers to meet various voltage conversion needs, in small transformer systems for lower capacity applications, or as three phase distribution transformers in industrial power systems. Thanks to their reliable performance and standardized design, and thanks to mature standardized production, we maintain a reasonable inventory level for immediate delivery. We manufacture in strict accordance with multiple international and regional standards: IEC, GB, JIS, ANSI, IEEE, and UL, while meeting energy efficiency ratings (Level 1/Level 2) and SCB series requirements. All products have passed rigorous testing and certification according to the relevant standards.
Product advantages
|
Characteristics |
Product Technology Excellence |
|
Low local power emission |
Using epoxy resin vacuum casting process, the partial discharge quantity is ≤5pC, which is far below the standard requirement and significantly extends the insulation life. |
|
Anti short circuit ability strength |
The coil is cast as a rigid block, which can withstand the huge electrodynamic force generated during a sudden short circuit, without the risk of displacement or cracking. |
|
Tide resistant |
It can be stored and operated in high humidity environments without pre drying; when used with a protective shell, it is suitable for dusty or corrosive environments. |
Technical Specifications
|
Number |
Technical grade |
|
Model number |
Drying type converter for drying oil |
|
Constant capacity |
50kVA (Adjustable demand system) |
|
Imported electricity (Gaogu) |
6.6kV,10kV,11kV,20kV,22kV,22.9kV,35kV(Adjustable demand system) |
|
Export electricity (low pressure) |
0.38kV,0.4kV,(Adjustable demand system) |
|
Voltage regulation range |
±5%,±2×2.5%,(Adjustable demand system) |
|
Number of phases |
Three phase(Adjustable demand system) |
|
Frequency |
50Hz/60Hz |
|
Link Group |
Dyn11,Yyn0,Yd11,Dyn5,YNd11(Adjustable demand system) |
|
Winding material |
Aluminum/Copper |
|
No load loss |
(Adjustable demand system) |
|
Load loss |
(Adjustable demand system) |
|
No load current |
(Adjustable demand system) |
|
Temperature rise limit |
100K,125K(Corresponding to F/H class insulation)(Adjustable demand system) |
|
Short circuit impedance |
(Adjustable demand system) |
|
Cooling method |
AN (natural cooling) or AF (forced air cooling) |
|
Insulation class |
Class F (Class H optional) |
|
Partial discharge |
≤5pC |
|
Implementation Standards |
IEC,GB,JIS,ANSI,IEEE,UL |
Why choose Union Power
• Complete set of accessories: Includes a full set of accessories such as shock absorbers, noise reducers, and temperature controllers; fault indicators, cable terminals, and other accessories.
• Professional Installation Service: Equipped with certified high voltage electricians and senior engineers, supporting on site professional installation and remote online installation guidance.
• Commissioning and Testing: Possessing advanced and complete electrical testing equipment, performed by professional operators to ensure safe power supply.
• After sales Support: 24/7 online technical support; on site after sales service promises arrival at the destination within 5 days (for replacement of special components, the arrival time of the component shall prevail).
• Customization Capability: Providing professional one stop customized solutions based on specific customer needs and application scenarios.
• Delivery Guarantee: Multiple production bases and strict quality control ensure rapid delivery and effectively avoid supply chain disruption risks.
Dry-Type Transformer FAQ
1. Do dry-type transformers need regular maintenance?
Very low maintenance – only occasional dust cleaning and visual inspection. No oil testing, no filter changes.
2. How long does a dry-type transformer last?
Under normal indoor operation, 25–30 years or more.
3. What capacity and voltage do you offer for dry-type transformers?
Capacity: 30kVA – 10,000kVA+. Primary voltage: up to 35kV. Secondary: 0.4kV, 0.69kV, or custom.
Product information and Certificates
We provide the following complete technical documentation and quality documents:
• Material Safety Data Sheet (MSDS)
• Factory Test Report
• Certificate of Conformity
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