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The dry-type distribution transformer is the ultimate centralized power hub for indoor and medium-small substations. Engineered with high-strength resin insulation, acoustic optimization, and a highly stable distribution structure, it securely delivers accurate power. Achieving the highest Tier 1 (NX1) energy efficiency standard, it reduces losses by 35%~45%. Its oil-free, dust-proof nature makes it the safest and most reliable choice for commercial skyscrapers, large factory floors, municipal facilities, and advanced data centers aiming for long-term continuous operation with minimal OPEX.
Core Parameters:
• Energy Efficiency: Tier 1 Efficiency (GB 20052-2024 NX1), maximizing long-term energy ROI.
• Structure: Stable Distribution Coils + High-Grade Silicon Steel (Partial Discharge ≤5pC).
• Enclosure: IP40+ Custom Cabinets available for complex indoor integrations.
Manufacturer Core Advantages
Complies with GB 20052-2024 Tier 1 standards. By utilizing high-grade CRGO steel, it slashes no-load and load losses by 35%~45%, delivering massive electricity savings for continuous indoor distribution.
Engineered with an optimized distribution coil structure, ensuring highly accurate voltage outputs (from 10kV/20kV down) perfectly suited for sensitive commercial and industrial loads.
Advanced vacuum casting minimizes internal air gaps, achieving a partial discharge of ≤5pC. This ensures unparalleled insulation integrity and guarantees long-term safe operations.
100% oil-free design using premium flame-retardant resin. It acts as a self-extinguishing barrier, completely eliminating the explosion hazards inherent in oil-filled units.
Available as an open-type unit or fitted with high-protection IP40 steel casings equipped with sealed cable entry ports, perfectly isolating it from dusty or complex indoor environments.
Optional smart monitoring modules offer remote, real-time tracking of critical data like winding temp and load currents, elevating the operational management of the entire distribution setup.
We offer an end-to-end service framework: precise pre-sales capacity modeling, factory inspection invitations, and a guaranteed 8-hour technical response for remote installations.
Key Specifications (Tier 1 NX1 Distribution Series)
| Parameter | Typical Value | Description |
| Energy Efficiency | Tier 1 (GB 20052-2024 NX1) | Top-tier energy savings for demanding, continuous indoor distribution networks. |
| Rated Voltage | HV: 10kV / 20kV LV: 0.4kV | Highly precise distribution output to directly power 3-phase commercial and industrial machinery. |
| No-Load Loss | Approx. 0.2kW ~ 1.8kW | Extremely low idle energy waste through premium low-loss CRGO silicon steel. |
| Load Loss (120℃) | Approx. 1.5kW ~ 11.0kW | Superb energy conversion efficiency under heavy, continuous distribution loads. |
| Partial Discharge | ≤ 5pC | Industry-leading internal insulation purity, drastically reducing electrical breakdown risks. |
| Protection Structure | IP40 or above (Optional) | Can be supplied with dedicated steel enclosures to block severe indoor dust and moisture. |
Full Series Technical Parameters (SCB13 10kV Platform)
| 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 |
| 63 | 4.0 | 180 | 1030 | 360 | 900×650×950 |
| 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 |
| 315 | 4.0 | 480 | 3300 | 1250 | 1200×850×1200 |
| 400 | 4.0 | 570 | 3900 | 1450 | 1250×900×1250 |
| 500 | 4.0 | 680 | 4800 | 1700 | 1300×950×1300 |
| 630 | 4.5 | 810 | 5880 | 1950 | 1350×1000×1350 |
| 800 | 4.5 | 980 | 7100 | 2300 | 1400×1000×1400 |
| 1000 | 4.5 | 1150 | 8600 | 2700 | 1450×1050×1450 |
| 1250 | 4.5 | 1350 | 10400 | 3200 | 1550×1100×1550 |
| 1600 | 4.5 | 1650 | 12800 | 3800 | 1650×1150×1650 |
| 2000 | 4.5 | 2050 | 15600 | 4500 | 1750×1250×1800 |
| 2500 | 4.5 | 2450 | 19000 | 5300 | 1850×1300×1900 |
| 3150 | 4.5 | 3000 | 23000 | 6500 | 2000×1400×2100 |
* The comprehensive table above showcases our base dry-type structural platform. As Tier 1 (NX1) models, the final distribution units feature heavily optimized cores, meaning actual loss values (No-Load/Load Watts) are strictly guaranteed to be substantially lower than these standard reference limits.
Detailed Description
Our Tier 1 efficiency dry-type distribution transformer is the pinnacle of indoor centralized power distribution. Built strictly under IEC and national standards, it utilizes an advanced, high-grade silicon steel core paired with a highly stable distribution coil structure. Its most prominent feature is its NX1 energy rating, which cuts electrical losses by 35%~45% over traditional units. This ensures a rapid return on investment for large-scale industrial operations, commercial skyscrapers, and high-demand municipal facilities that run high-capacity loads continuously.
Beyond efficiency, it prioritizes unparalleled safety. The completely oil-free resin insulation delivers an ultra-low partial discharge (≤5pC) and is inherently flame-retardant. Whether deployed as an open-type unit in a clean indoor substation or outfitted with a rugged IP40 steel cabinet for a dusty factory floor, it executes centralized power distribution with whisper-quiet, zero-hazard reliability.
FAQ
Choosing a Tier 1 (NX1) distribution transformer involves a slightly higher initial capital expenditure, but it delivers massive Return on Investment (ROI) over its 25+ year lifecycle:
1) Substantial OPEX Reductions: With no-load and load losses reduced by 35%~45% compared to older models, the transformer wastes significantly less electricity as heat. For a facility running continuously, this translates to thousands of dollars saved annually on electricity bills.
2) Decreased HVAC Costs: Because the transformer operates much more efficiently, it emits far less ambient heat into the electrical room. This reduces the burden on your facility's ventilation and air-conditioning (HVAC) systems, saving even more operational power.
3) Greener Footprint: Adhering to the strictest GB 20052-2024 Tier 1 standards aligns your enterprise with carbon-neutral mandates, potentially qualifying your project for government energy-saving subsidies or green-building certifications.
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
