1.Familiarity with National and IEC Standards

Standards are the technical legislative framework for product design. Whether a product can be released to the market depends on its compliance with relevant standards. Ensuring product performance meets the required standards is the prerequisite for discussing its technical and economic attributes. Therefore, understanding standards is essential for successful product design.

• Standard Systems in China:
  Standards are classified into three levels: national standards (GB), industry standards (JB, ZB, and DL), and enterprise standards. They are further divided into mandatory and non-mandatory (recommended) standards.
• International Standards:
  To align with global practices and enhance competitiveness, China has adopted IEC (International Electrotechnical Commission) standards. For export products, other advanced standards may also apply, such as BS (British Standards), ANSI (American National Standards Institute), DIN (German Standards), and others.
• Relevant Standards:
  Key standards include GB 1094, GB/T 6451, GB 6450, GB/T 10228, and GB 311, among others.

2.Understanding Customer Requirements

A company’s economic success depends on whether its products are market-oriented, cost-efficient, high-quality, and competitively priced. Meeting customer needs is crucial to product sales and business sustainability.

While generalization and standardization are important, designs should also accommodate diverse user requirements, particularly for competitive market segments.

3.Familiarity with Raw Material Supply

Transformer manufacturing relies on materials such as silicon steel sheets, copper (or aluminum) conductors, steel, insulation materials, and transformer oil.

• Challenges: Variability in material quality due to multiple supply channels, including domestic and imported sources, large and small manufacturers, or newly developed suppliers.
• Importance: Understanding the quality and properties of materials helps optimize usage, ensuring product quality while reducing costs.

4.Knowledge of Factory Processes and Equipment

Converting advanced designs into high-quality products requires good raw materials, appropriate processes, and skilled workers.

• Examples:
• Core lamination quality affects the selection of core process coefficients.
• Insulation treatment processes directly impact dielectric strength and partial discharge levels.
• Continuous Improvement: Regular technological upgrades to adopt advanced production techniques and equipment are essential for product quality improvement and innovation.

5.Emphasis on Standardization and Generalization

The degree of product standardization and generalization directly impacts productivity and cost-effectiveness. This is particularly critical for mass-produced medium and small power or distribution transformers.

• Factories should incorporate market research findings and standard requirements into design processes to achieve high levels of standardization and generalization.