Product Overview
The 300 kva dry type transformer is an epoxy resin insulated, three phase, oil free, fire resistant, and environmentally friendly small distribution transformer. Suitable for power distribution systems,300 kva dry type transformer is designed for efficient and reliable power distribution in industrial, commercial, and utility applications. Its compact and fire resistant design eliminates the need for oil or other coolants, making it ideal for environments with stringent safety and environmental standards. Designed to withstand heavy loads, it is an ideal solution for meeting demanding electrical requirements, providing a sustainable and cost effective option for modern electrical systems.
Our 315kVA dry type transformers have a wide range of applications: they serve as step down power transformers to meet various voltage conversion needs, and can also be used in small transformer systems for lower capacity applications, or as power transformers in industrial power systems. Their reliable performance, standardized design, and mature standardized production processes allow us to maintain a reasonable inventory level and ensure 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
- Resin casting as an integrated design ensures strong insulation, high mechanical strength, and good short circuit withstand.
- Flame retardant with self extinguishing properties (avoids secondary disasters).
- Environmentally robust, suitable for harsh operating environments.
- Very low maintenance requirements and low running costs.
- Low losses, high efficiency, and notable energy saving benefits.
Technical Specifications
|
Number |
Technical grade |
|
Model number |
Drying type converter for drying oil |
|
Constant capacity |
300kVA (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 |
Usage scenario
Our transformers are widely used in the following fields:
● Power grids & substations – Voltage step‑up/step‑down, distribution, and grid stability.
● Renewable energy – Solar farms, wind power plants, and energy storage systems (step‑up to medium/high voltage).
● Industrial facilities – Factories, mining sites, oil & gas plants, and heavy machinery power supply.
Dry Type Transformer FAQ
1. What's the difference between dry type and oil immersed transformers? Which one should I choose?
Dry type is fire safe, maintenance free, and ideal for indoor use. Oil immersed costs less and suits outdoor applications. Choose dry type for indoor, fire sensitive areas.
2. Does a dry type transformer need regular maintenance? How long does it last?
Almost no maintenance – just occasional dust cleaning. Lifespan is typically 25–30 years under normal indoor operation.
3. What capacity, voltage, and custom options do you offer?
Capacities from 30kVA to over 10,000kVA, primary voltage up to 35kV, secondary 0.4kV/0.69kV. Custom design, enclosure, paint, and logo available.
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