D11-M·R (10 kV) Series Single-Phase Oil-Immersed Wound-Core Distribution Transformer

This product complies with the national standards GB 1094 “Power Transformers” and JB/T 10317 “Technical Parameters and Requirements for Single-Phase Oil-Immersed Distribution Transformers.” The D11‑M·R series is a single-phase oil-immersed distribution transformer featuring a wound‑core design with a single-frame, double‑core‑column structure; the outermost layer is spot‑welded without additional binding. High‑quality cold‑rolled silicon steel sheets are selected and cut on a high‑performance longitudinal slitting line, ensuring that burr heights are kept below 0.02 mm. Both the high‑ and low‑voltage windings utilize premium oxygen‑free copper wire and are wound using advanced manufacturing processes. Thanks to the adoption of new materials, innovative processes, and state‑of‑the‑art production equipment, the transformer exhibits significantly reduced no‑load and load losses, with enhanced reliability and superior performance—making it a key product promoted nationwide.

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Oil-Immersed Power Transformer Series

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Product Description

　　Product Overview:

　　　　This product complies with the national standards GB 1094 “Power Transformers” and JB/T 10317 “Technical Parameters and Requirements for Single-Phase Oil-Immersed Distribution Transformers.” The D11‑M·R series is a single-phase oil-immersed distribution transformer featuring a wound‑core design. Its core adopts a single‑frame, double‑column winding structure, with the outermost layers spot‑welded rather than bound. High‑quality cold‑rolled silicon steel sheets are selected and cut on a high‑performance slitting line, ensuring that burr heights remain below 0.02 mm. Both the high‑ and low‑voltage windings utilize premium oxygen‑free copper wire and are wound using advanced manufacturing processes. Thanks to the adoption of new materials, innovative techniques, and state‑of‑the‑art production equipment, the transformer exhibits significantly reduced no‑load and load losses, while its performance and structural integrity are markedly enhanced, making it a key product promoted nationwide.

　　Ordering Instructions:
　　When placing your order, please provide the following parameters:
　　1. Product Model
　　2. Rated Capacity
　　3. Voltage Combination
　　4. Scope of Adjustment
　　5. Frequency
　　6. Connection Group Designation
　　7. Short-circuit impedance
　　8. For products with special requirements, specify the technical specifications.

　　Technical Data Sheet for the D11-M·R (10 kV) Series Single-Phase Oil-Immersed Wound-Core Distribution Transformer

Rated Capacity (kVA)	Rated voltage		Connection Group	No-load current (%)	No-load loss (W)	Load loss (W)	Impedance Voltage (%)
Rated Capacity (kVA)	High voltage (kV)	Low voltage (kV)	Connection Group	No-load current (%)	No-load loss (W)	Load loss (W)	Impedance Voltage (%)
10	6 ±2×2.5% or 10 ±2×2.5% or 10 ±2×2.5%	2×(0.22–0.24) or 0.22–0.24	Yyn0 Dyn11	2.0	50	240	3.5
20				1.8	70	375
30				1.7	85	490
50				1.6	135	660
63				1.5	160	790
80				1.4	180	930
100				1.3	210	1100
125				1.2	235	1300
160				1.0	270	1500