Product Overview
The 250 kVA dry type step down transformer is a small, three phase, oil free, fire resistant, and environmentally friendly distribution transformer with epoxy resin cast insulation.dry type power transformer 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.
250 kVA dry type step down 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, Transformer maintains a reasonable inventory level, enabling immediate delivery. We manufacture strictly according to multiple international and regional standards: IEC, GB, JIS, ANSI, IEEE, UL, while meeting energy efficiency ratings (Level 1/Level 2) and SCB series requirements. All products have passed the rigorous testing and certification of the corresponding standards.
Technical Specifications
|
Number |
Technical grade |
|
Model number |
Drying type converter for drying oil |
|
Constant capacity |
250kVA (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 |
Product Advantages
● Offering a fully sealed, leak‑free structure – maintenance‑free and stable for years of operation.
● Providing excellent insulation, efficient cooling, high overload capacity, and reliable performance even in outdoor harsh sites.
● Achieving low loss and high efficiency, which lowers both energy consumption and running costs.
● Designed with a compact structure – saves space, simplifies installation, and adapts easily to various sites.
● Delivering high cost‑effectiveness and a long service life, reducing overall operation and maintenance expenditure.
● Resisting short circuits and impact stresses – fully capable of continuous heavy‑load operation.
Dry Type Transformer FAQ
1. How long does a dry-type transformer last?
Under normal indoor operation, 25–30 years or more.
2. 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.
3. Can dry-type transformers be used outdoors?
Yes, but must be installed inside an IP54 or higher weatherproof enclosure to protect against rain, dust, and direct sun.
Hot Tags: 250 kva dry type step down transformer, China 250 kva dry type step down transformer manufacturers, suppliers, factory, air cooled dry type transformer, electrostatic shield dry type transformer, enclosed dry type transformer, indoor dry type transformer, inverter duty transformer, wound core dry type transformer
