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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.
A dry distribution transformer uses air cooling and solid insulation without insulating oil. This dry distribution transformer reduces fire risks and oil leakage troubles. It is widely installed in data centers, hospitals, office buildings and indoor substations. It features compact structure, low maintenance work and stable performance for indoor power distribution projects.
Professional dry type distribution transformer manufacturers can provide customized voltage, capacity and enclosure solutions. These dry type distribution transformer manufacturers strictly test every unit before shipment and offer complete after-sales support. Our factory supports OEM & ODM and meets IEC, CE standards for global power distribution projects.
We mainly supply cast resin dry type distribution transformer and VPI vacuum pressure impregnated transformer. Cast resin type has strong moisture and shock resistance, while VPI type delivers better cost performance. Both models have low partial discharge and low noise, suitable for different indoor and semi-outdoor power distribution scenarios.
Our dry type distribution transformer passes strict factory tests and holds ISO9001, CE and IEC certifications. We can apply for other regional certificates according to client’s project requirements. All raw materials are inspected before production to guarantee stable operation, low loss and long service life under normal working conditions.
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
