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The 10kV cast-resin dry-type power transformer series (encompassing SCB10 through SCB18) represents the pinnacle of three-phase, full-copper indoor distribution technology. Strictly adhering to the GB/T 10228-2015 national standards, these transformers are meticulously engineered for urban power grids, industrial hubs, and renewable energy integrations. Supported by high-purity oxygen-free copper windings and robust epoxy resin vacuum casting, they deliver unparalleled low-loss performance, exceptional reliability, and an extended operational lifecycle.
Core Parameters:
• Voltage Configuration: 10kV (or 35kV) stepped down to 0.4kV.
• Efficiency Portfolio: Ranges from standard SCB10 up to ultra-efficient SCB18 models.
• Structure: Full Copper Windings + Vacuum Resin Cast (Class H / 180℃ Insulation).
Product Features
Built universally with high-purity oxygen-free copper. This ensures remarkably low electrical resistance, preventing overheating and minimizing load losses during continuous operation.
The epoxy resin is cast under strict vacuum conditions, eliminating air bubbles. This secures a Class H (180℃) insulation rating and ultra-low partial discharge.
The solid cast structure provides immense mechanical strength. The series easily withstands short-circuit impacts (≥28kA to ≥35kA for 2 seconds), ensuring grid stability.
Standard Natural Air (AN) cooling provides silent, stable base loads. The optional Forced Air (AF) dual-mode instantly boosts capacity to safely manage peak electrical demands.
[Image of 10kV cast-resin dry-type transformer]
SCB Series Cross-Comparison (10kV Class)
| Parameter | SCB10 | SCB11 | SCB12 | SCB13 | SCB14 | SCB18 |
| Winding Material | Full Copper (High-Purity Oxygen-Free Copper) | |||||
| Insulation Method | Epoxy Resin Vacuum Casting | |||||
| Vector Group | Dyn11 | |||||
| Rated Voltage | 10±2×2.5% / 0.4kV | |||||
| Impedance | 8% ~ 10% | |||||
| No-Load Loss (kW) | ≤ 2.2 | ≤ 2.0 | ≤ 1.8 | ≤ 1.6 | ≤ 1.4 | ≤ 1.0 |
| Load Loss (75℃, kW) | ≤ 9.5 | ≤ 9.3 | ≤ 9.1 | ≤ 8.9 | ≤ 8.7 | ≤ 8.5 |
| No-Load Current (%) | ≤ 1.0 | ≤ 0.9 | ≤ 0.8 | ≤ 0.7 | ≤ 0.5 | ≤ 0.3 |
| Insulation Class | Class H (180℃) | |||||
| Noise Level dB(A) | ≤ 58 | ≤ 57 | ≤ 55 | ≤ 53 | ≤ 51 | ≤ 48 |
| Short-Circuit Withstand (2s) | ≥ 28kA | ≥ 28kA | ≥ 29kA | ≥ 30kA | ≥ 32kA | ≥ 35kA |
* Notes: All models support AN (Natural Air) and customizable AN/AF (Forced Air) cooling modes. Protection levels are available in standard IP20, with customizable IP23 to IP54 enclosures based on application environments.
FAQ
The numerical suffix (10, 13, 14, 18) indicates the generational leap in energy efficiency and material optimization of the transformer:
1) Energy Efficiency & Loss: As the number increases, the energy efficiency dramatically improves. For example, an SCB18 transformer consumes roughly half the no-load power of an SCB10 model (≤1.0kW vs ≤2.2kW). This results in massive electricity cost savings over a 25-year lifespan.
2) Acoustic Noise: Higher-tier models like SCB14 and SCB18 utilize advanced 45° step-lap core assembly techniques and superior silicon steel, effectively dropping operational noise from 58dB down to an ultra-quiet 48dB.
3) Selection Advice: If initial capital budget is strictly constrained and the load is moderate, SCB10/11 are reliable choices. If your facility runs continuous heavy loads, aims for carbon-neutral operations, or requires Tier 1 energy compliance, the SCB14 or SCB18 will provide a vastly superior Return on Investment (ROI).
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
