乾式変圧器の選択を解決: Fクラスの選び方, Hクラス, SCB, とSCR

How to make the right choice when facing numerous dry-type transformer models on the market? この記事では、断熱レベルの秘密について詳しく説明します。 (H, F) and models (SCB and SCR), helping you choose the most suitable and economical products according to your actual needs.

Reliable Power, Anywhere. Compact and maintenance-free Dry-Type Transformer

1.Understanding insulation level: How does it affect the lifespan and performance of transformer?

The insulation level is one of the most important parameters of dry-type transformers. It directly determines the transformer’s tolerance and service life at high temperatures.

1.1 What is insulation grade?

The insulation level represents the heat resistance of the insulation material for transformer windings. It is represented by a letter, such as A, E, B, F, H, C. The higher the level, the higher the long-term working temperature allowed by the material. At present, the mainstream in the market are F-grade and H-grade.

1.2 Difference and Selection between F-Level and H-Level

• F-class insulation: The maximum allowable working temperature is 155 ℃. This is currently the most commonly used and cost-effective grade. It can meet the needs of the vast majority of conventional application scenarios, such as ordinary commercial buildings and light industries.
• H-class insulation: The maximum allowable working temperature is 180 ℃. It has higher heat resistance, therefore it has stronger overload capacity and longer lifespan. Suitable for environments with high temperatures, large load fluctuations, or higher reliability requirements, such as steel plants, data center core rooms, 等.
• Simply put, choosing H-class means providing greater temperature margin for the transformer, making it more reliable to operate under more stringent conditions.

2.Decoding Transformer Model: What is the difference between SCB and SCR?

You may often see SCB and SCR models, which represent different materials of winding conductors.

2.1 SCB: Epoxy resin cast dry-type transformer

の “B” で “SCB” represents the “foil” 巻く (usually copper foil) and casting process.

• Features: Its winding is vacuum cast in high-quality epoxy resin. This gives the transformer extremely high mechanical strength and moisture and dust resistance.
• 利点: Strong short-circuit tolerance, stable performance, 低騒音, maintenance free.
• Applicable scenarios: Almost applicable to all standard occasions, it is currently the mainstream technology in the market.

2.2 SCR: Epoxy resin wrapped impregnated dry-type transformer

の “R” で “SCR” represents a “wire wound” 巻く.

• Features: It adopts wire wound winding and is vacuum impregnated with epoxy resin.
• 利点: The heat dissipation performance is usually better, and the process is relatively flexible.
• Applicable scenarios: It is commonly used in non-standard products with special requirements or specific specifications for heat dissipation.
• For most users, SCB transformers are a more common and reliable choice due to their durability and excellent performance.

No oil, no risk! Dry-Type Transformer for enhanced safety in buildings and data centers

3.Other key considerations for selecting dry-type transformer

In addition to insulation grade and model, the following points are also crucial:

• Energy Efficiency Level: Pay attention to Chinese energy efficiency standards (GBなど 20052), choose products with Level 1 or Level 2 エネルギー効率, and achieve significant long-term energy-saving benefits.
• Protection level: such as IP20 (preventing solid foreign objects larger than 12mm from entering) or IP23 (preventing water splashing), which determines its ability to adapt to the environment.
• ブランドとアフターサービス: Choose a reputable brand to ensure professional technical support and reliable after-sales service.
• Cost considerations: It is not only necessary to compare the initial purchase price, but also to comprehensively consider the operating electricity costs, maintenance costs, and the total cost of the entire lifecycle.

Choosing the appropriate dry-type transformer is a highly technical decision. By understanding the two core elements of insulation grade and model differences, you can make wiser judgments and choose a reliable, 効率的, and economical “心臓” for your power system.

洛陽大唐能源科技有限公司, 株式会社. Rを統合したハイテク企業です&D, 変圧器などの電力機器の製造・供給, 新しいエネルギー成分, 配電盤とインバータ. 技術革新を核に, 私たちは、世界中の顧客にサービスを提供するために、高信頼性と高性能の電源ソリューションの開発に注力しています。. 厳格な品質管理システムと国際規格認証を取得しています。, これからも優れた製品を世に送り出し、お客様の安全・安定した電力システムの構築をお手伝いします.