Product Overview
100 kVA dry type transformer is a small, three phase, oil free, fire resistant, and environmentally friendly distribution transformer with epoxy resin casting insulation. It is suitable for 6.6kV/10kV/0.4kV power distribution systems, and is 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 overseas small power grid applications.
100 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 medium capacity applications, or as three phase transformers in industrial power systems. Thanks to their reliable performance, standardized design, and mature standardized production, delivery times are short. We manufacture strictly according to 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
- Integrated resin casting provides high insulation strength, high mechanical strength, and strong short circuit withstand capability.
- Flame retardant and self extinguishing (preventing secondary disasters).
- Excellent environmental performance, enabling operation in harsh environmental conditions.
- Extremely low maintenance requirements and low operating costs.
- Low losses, high operating efficiency, and significant energy saving advantages.
Usage scenario
● High‑rise buildings, hospitals, data centers (fire‑safe, indoor)
● Industrial workshops, commercial complexes, schools
● Tunnels, subways, airports (low noise, maintenance‑free)
● Renewable energy auxiliary power
Technical Specifications
|
Number |
Technical grade |
|
Model number |
Drying type converter for drying oil |
|
Constant capacity |
100kVA (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 |
Dry-Type Transformer FAQ
1. What is the difference between cast resin and VPI dry-type transformers?
Cast resin (epoxy) is fully encapsulated, offering better protection and lower partial discharge. VPI is vacuum pressure impregnated – also reliable but typically lower cost.
2. Do dry-type transformers make noise?
They operate at low noise levels (typically 50–65 dB). Low-noise designs are available for hospitals and residential buildings.
3. Can you customize dry-type transformers?
Yes. Custom voltage, capacity, tapping range, enclosure type, paint color, and customer logo on nameplate.
Regarding Union Power
Since 2011, we have supplied transformers to clients across the globe. We are your trusted partner for customized transformers, OEM work, and integrated power solutions. Our products – step‑down, three‑phase, and miniature – cover the full scope of project needs.
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