SC(B)10 Series Three-Phase Resin-Insulated Dry-Type Power Transformer (35 kV Class)

The SC(B)10 series 35 kV‑class epoxy‑cast, no‑excitation‑regulating dry‑type transformer is manufactured using a F‑class epoxy resin compound with filler. After vacuum degassing via a thin‑film process, the high‑ and low‑voltage windings—reinforced with glass‑fiber molded mesh—are cast in thin layers under vacuum and pressure. This results in a dry‑type transformer characterized by exceptionally high mechanical strength, electrical strength, and thermal resistance.

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Dry-type transformer series

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Product Description

　　Overview

　　The SC(B)10 series 35 kV-class epoxy‑cast, no‑excitation voltage‑regulating dry‑type transformer is manufactured using a F‑class epoxy resin compound with filler. After vacuum thin‑film degassing, the high‑ and low‑voltage windings are cast in thin layers under vacuum and pressure, with glass‑fiber reinforced mesh embedded on both the inner and outer surfaces. It is a dry‑type transformer characterized by 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‑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 Performance Parameters

Model number Model	Voltage combination Voltage Combution	Group Association Connection symbol	No-load loss No-load Loos (W)	Load loss Load Loos (120℃) (W)	Load loss Load Loos(120℃) (W)	Short-circuit impedance %
SC10-50	35±2x2.5% /0.4	Dyn11 or Dyn0	450	1425	2.8	6
SC(B)10-100			630	2090	2.4
SC(B)10-160			790	2810	1.8
SC(B)10-200			880	3325	1.8
SC(B)10-250			990	3800	1.6
SC(B)10-315			1180	4515	1.6
SC(B)10-400			1375	5415	1.4
SC(B)10-500			1620	6650	1.4
SC(B)10-630			1865	7695	1.2
SC(B)10-800			2160	9120	1.2
SC(B)10-1000			2430	10450	1.0
SC(B)10-1250			2835	12730	0.9
SC(B)10-1600			3240	15485	0.9
SC(B)10-2000			3825	18240	0.9
SC(B)10-2500			4455	21850	0.9