SC(B)11 (10 kV) Series Three-Phase Resin-Insulated Dry-Type Distribution Transformer

The SC(B)11-13 series epoxy‑cast, non‑excited voltage‑regulating dry‑type transformers are manufactured using F‑class or H‑class epoxy resin compounds with fillers. After vacuum degassing via a thin‑film process, the windings—both high‑ and low‑voltage—are cast in thin layers under vacuum and pressure, with glass‑fiber reinforced winding forms providing structural support. The result is a dry‑type transformer boasting exceptionally high mechanical strength, electrical insulation performance, and thermal resistance. It is an excellent choice for urban grid modernization projects and is particularly well suited for critical applications such as high‑rise buildings, airports, power stations, and commercial centers that demand fire‑proof, explosion‑proof, and moisture‑resistant operation. Product Features: 1. Flame‑retardant, explosion‑proof, pollution‑free, maintenance‑free, and capable of decentralized installation at load centers, reducing capital investment and lowering overall costs. 2. Low losses and excellent energy‑saving performance, delivering significant operational cost savings. 3. Partial discharge levels below 10 pC; the windings are non‑hygroscopic and dust‑repellent, offering high mechanical strength and superior reliability while further reducing expenses. 4. Excellent short‑circuit withstand capability and strong resistance to lightning surges. 5. The enclosure is available in three materials—stainless steel, cold‑rolled sheet, and aluminum alloy—and comes in two cooling configurations: forced‑air ventilation and natural heat dissipation. Wiring options include top‑in/top‑out, bottom‑in/top‑out, and bottom‑in/bottom‑out arrangements. 6. Transformers can be equipped with temperature control and display systems according to customer requirements, and may be integrated with external temperature‑control systems. Ordering Notes: When placing your order, please provide the following parameters: 1. Product model number 2. Rated capacity 3. Voltage configuration 4. Voltage regulation range 5. Operating frequency 6. Transformer connection group designation 7. Short‑circuit impedance 8. Any special technical requirements.

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Dry-type transformer series

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Product Description

The SC(B)11‑13 series epoxy‑cast, non‑excited voltage‑regulating dry‑type transformers are manufactured using F‑ or H‑class epoxy resin compounds with fillers. After vacuum degassing via a thin‑film process, the windings—both high‑ and low‑voltage—are cast in thin layers under vacuum and pressure, with their inner and outer surfaces reinforced by glass‑fiber forming meshes. The result is a dry‑type transformer boasting exceptionally high mechanical strength, electrical insulation performance, and thermal resistance. It is an excellent solution for urban power‑grid upgrades and is particularly well suited for critical applications in high‑rise buildings, airports, power stations, commercial centers, and other environments that demand fire‑proofing, explosion‑proofing, and moisture resistance.
　 Product Features
　　1. Flame-retardant, explosion-proof, pollution-free, maintenance-free, and capable of decentralized installation at the load center, thereby reducing capital investment and lowering costs.
　　2. Low losses and excellent energy-saving performance deliver significant operational cost savings.
　　3. Partial discharge level is less than 10 pC; the coil is non-hygroscopic and dust‑resistant, with high mechanical strength and excellent reliability, resulting in cost savings.
　　4. Excellent short-circuit resistance and superior lightning‑impulse withstand capability.
　　5. The enclosure is available in three materials—stainless steel, cold-rolled sheet, and aluminum alloy—and comes in two configurations: forced‑air cooling and natural heat dissipation. Cable entry and exit can be configured as top‑in/top‑out, bottom‑in/top‑out, or bottom‑in/bottom‑out.
　　6. The transformer can be equipped with a temperature control and display system upon customer request, and it can be used in conjunction with a temperature control system.
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 SC(B)11 Series 10 kV Three-Phase Resin-Insulated Dry-Type Distribution Transformer

Rated	Rated voltage		Connection	No-load current (%)	No-load loss (W)	Load Loss (W) (75°C)	Impedance Voltage (%)

Capacity			Group

(kVA)	High voltage (kV)	Low voltage (kV)
30	6	0.4	Yyn0	2	170	710	4
50				2	240	1000
	±2×2.5%		Dyn11
						870
80	or			1.5	330	1380
100				1.5	360	1570
125	6.3			1.3	420	1850
160				1.3	480	2130
200	±2×2.5%			1.1	550	2530
250				1.1	640	2760
315	or 10			1	790	3470
400				1	880	3990
500	±2×2.5%			1	1040	4880
630				0.85	1200	5880
630				0.85	1170	5960	6
800				0.85	1360	6960
1000				0.85	1590	8130
1250				0.85	1880	9690
1600				0.85	2200	11700
2000				0.7	2740	14400
2500				0.7	3240	17100
1600				0.85	2200	12900	8
2000				0.7	2740	15900
2500				0.7	3240	18800