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The 50kVA cast-resin dry type transformer is a core equipment for small-capacity distribution systems. Utilizing an enhanced resin-cast insulation and a highly efficient natural air cooling design, it combines the eco-friendly, zero-fire-risk benefits of dry-type equipment with an ultra-compact footprint. This 50 kva dry type transformer is highly suitable for small-scale distribution scenarios with strict safety demands, such as small retail shops, community public facilities (streetlights, security), remote rural households, and small laboratories. It provides highly reliable and stable power transmission in standard climates (-25℃ to 40℃).
Core Parameters:
• Energy Efficiency: Tier 2 Efficiency (Complies with GB 20052-2024).
• Structure: Enhanced Resin Cast + Natural Air Cooling (Compact, anti-corrosion).
• Warranty: 3-Year Standard Warranty.
Product Features
Runs entirely oil-free with an enhanced resin cast. Extremely flame retardant and self-extinguishing, utterly preventing explosion risks in populated small spaces.
Meets Tier 2 efficiency. Copper windings drastically reduce resistance losses. The anti-condensation, anti-corrosion resin ensures a lifespan of over 25 years.
Equipped with smart temp controllers, short-circuit, and lightning surge protection devices. Operates solidly whether in a small indoor enclosure or on an outdoor pole.
Volume is just 1/3~1/2 of medium-capacity models, weighing ≤150kg. Easily maneuverable by small carts, ideal for wall-mounting or small pre-installed enclosures.
No oil checking or changing whatsoever for the 50 kva dry type transformer. A quick semi-annual wipe of the cooling channels and visual inspection is all it takes to maintain this 50 kva dry type transformer, making it perfect for unattended decentralized grids.
Can be fitted with a compact smart monitoring module to track winding temps and currents remotely, giving you complete visibility without physical site visits.
Key Specifications (50kVA Dry Type Transformer SCB10/13 Series)
| Parameter | Typical Value | Description |
| Rated Capacity | 50kVA | 50 kva dry type transformer satisfies the foundational loads for small shops, rural areas, or specific equipment. |
| Rated Voltage | HV: 10kV | LV: 0.4kV | 50 kva dry type transformer features standard grid voltages, highly adaptable for local community and rural step-down needs. |
| Vector Group | Dyn11 / Yyn0 | Mainstream connections of dry type transformer ensuring simple wiring and excellent compatibility with 3-phase loads. |
| Impedance | 4.0% ~ 4.5% | Optimized for small capacities to limit short-circuit currents and protect micro-devices. |
| No-Load Loss | ≤ 0.17kW (SCB13) | Tier 2 compliant; ultra-low idle energy consumption saves electricity costs. |
| Load Loss (120℃) | ≤ 0.85kW | Copper windings minimize resistance losses, converting energy efficiently under load. |
| Winding Temp. Rise | ≤ 100K (Class F) | Enhanced resin insulation and natural air cooling prevent heat-induced insulation aging. |
| Noise Level | ≤ 45~50dB(A) | Whisper-quiet operation, completely unobtrusive when installed near residential areas. |
| Cooling Method | AN (Natural Air Cooling) | Natural airflow effortlessly handles standard continuous full-load requirements. |
Detailed Description
The 50kVA cast-resin dry type transformer is a micro-capacity distribution unit designed with enhanced resin insulation and natural air cooling. It combines the zero-pollution, high-safety characteristics of dry-type transformers with extreme physical compactness. It represents the prime choice for decentralized, low-load power supply environments like small community facilities, independent rural grids, or localized retrofits where space and safety are premium constraints.
With a robust design encompassing thickened resin layers, this 50 kva dry type transformer is easily repels moisture, dust, and corrosion. Its oil-free nature eradicates fire hazards entirely, functioning quietly with an operational noise below 50dB. It is exceptionally lightweight (often ≤150kg), allowing for highly versatile installations such as wall mounting or pole positioning, saving massive infrastructural costs. Furthermore, it boasts a 1.2x overload capacity for 30 minutes, effortlessly buffering against sudden electrical peaks.
Standard SCB13 Series Technical Reference
| Capacity (kVA) | Impedance (%) | No-Load Loss (W) | Load Loss (W) | Total Weight (kg) | Dimensions W×D×H (mm) |
| 30 | 4.0 | 130 | 600 | 250 | 800×600×900 |
| 50 | 4.0 | 170 | 850 | 320 | 850×650×950 |
| 100 | 4.0 | 220 | 1400 | 550 | 950×700×1000 |
| 160 | 4.0 | 280 | 1900 | 750 | 1050×750×1050 |
| 200 | 4.0 | 340 | 2300 | 880 | 1100×800×1100 |
| 250 | 4.0 | 400 | 2700 | 1050 | 1150×800×1150 |
* The table displays standard SCB13 dry-type technology platform parameters. Dimensions and weights are for reference and may vary based on specific enclosure customizations.
FAQ
Our 50 kva dry type transformer achieves up to 98% efficiency, ensuring minimal energy loss during operation.
A properly maintained 50 kva dry type transformer can serve reliably for 20 to 30 years under normal working conditions.
The 50 kva dry type transformer uses natural air cooling (AN), making it safe and suitable for indoor installations.
Whatsapp: +86-13961294414
E-mail: junqiu.wang@czguanghui.cn
jocelyn.duan@czguanghui.cn
ADD: No. 1, Yulong Middle Road, Xuejia Town, Xinbei District, Changzhou City, China
Mobile: 0086-15380068868
