SC(B)12 (35 kV) Series Three-Phase Resin-Insulated Dry-Type Distribution Transformer

Product Overview The SC(B)10-13 series 35kV-class epoxy‑cast, non‑excited voltage‑regulating dry‑type transformers are manufactured using F‑ or H‑class epoxy resin compounds with fillers. After vacuum degassing through a thin film process, the windings—both high and low voltage—are cast under vacuum and pressure in thin layers, reinforced with glass‑fiber forming meshes on their inner and outer surfaces. These transformers exhibit exceptionally high mechanical strength, electrical insulation strength, and thermal resistance. Product Features 1. Flame-retardant, explosion-proof, pollution-free, maintenance-free, and capable of decentralized installation at load centers, reducing capital investment and costs. 2. Low losses and excellent energy-saving performance, delivering significant operational cost savings. 3. Partial discharge levels below 10 pC; coils do not absorb moisture or dust, offering high mechanical strength and reliable operation, further reducing expenses. 4. Excellent short-circuit withstand capability and superior lightning impulse resistance. 5. Housing options include stainless steel, cold‑rolled sheet steel, and aluminum alloy; available configurations comprise forced‑air cooling and natural heat dissipation types, with cable entry/exit arrangements customizable to upper-in/upper-out, lower-in/upper-out, or lower-in/lower-out configurations. 6. Transformers can be equipped with temperature control and display systems as per customer requirements, compatible with external temperature monitoring systems. Ordering Notes When placing an order, please provide the following parameters: 1. Product model number 2. Rated capacity 3. Voltage combination 4. Regulation range 5. Frequency 6. Connection group designation 7. Short-circuit impedance 8. Special technical requirements for customized products Technical Data Sheet for SC(B)11 Series 35kV Three‑Phase Resin‑Insulated Dry‑Type Distribution Transformers Rated Rated Voltage Connection No‑Load Current (%) No‑Load Loss (W) Load Loss (W) at 75°C Impedance Voltage (%) Capacity Group (kVA) High Voltage (kV) Low Voltage (kV) 50 35 0.4 Yyn0 2.3 360 1420 6 80 — — 2.1 440 1820 ±2×2.5% Dyn11 — — — 870 100 — — 2 504 2090 125 — — 1.8 550 2390 160 — — 1.5 632 2810 200 — — 1.5 704 3320 250 — — 1.3 792 3800 315 — — 1.3 936 4510 400 — — 1.1 1100 5410 500 — — 1.1 1300 6650 630 — — 1 1490 7690 800 — — 1 1730 9120 1000 — — 0.75 1940 10400 1250 — — 0.75 2260 12700 1600 — — 0.75 2590 15400 2000 — — 0.75 3060 18200 2500 — — 0.75 3560 21800

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Dry-type transformer series

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Product Description

Product Overview
　　The SC(B)10-13 series 35 kV-class epoxy‑cast, no‑excitation‑regulating dry‑type transformer utilizes a F‑class or H‑class epoxy resin compound containing fillers. After vacuum thin‑film degassing, the windings—high‑ and low‑voltage—are cast in thin layers under vacuum and pressure, with glass‑fiber reinforced mesh embedded on both the inner and outer surfaces. This results in a dry‑type transformer boasting exceptionally high mechanical strength, electrical strength, and thermal 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‑draft and natural‑convection cooling. 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 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 35 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)
50	35	0.4	Yyn0	2.3	360	1420	6
80				2.1	440	1820
	±2×2.5%		Dyn11
						870
100				2	504	2090
125				1.8	550	2390
160				1.5	632	2810
200				1.5	704	3320
250				1.3	792	3800
315				1.3	936	4510
400				1.1	1100	5410
500				1.1	1300	6650
630				1	1490	7690
800				1	1730	9120
1000				0.75	1940	10400
1250				0.75	2260	12700
1600				0.75	2590	15400
2000				0.75	3060	18200
2500				0.75	3560	21800