Complete Product Introduction

1. Product Brief Introduction

The S20-M-30-2500/10-NX1 transformer is an oil-immersed transformer that complies with the first-level energy efficiency standard. As an independently developed product by our company in accordance with energy efficiency standards, it is a high-efficiency and energy-saving transformer prioritized for procurement by the State Grid Corporation of China, and has advantages in R&D and design, production and manufacturing, operation and maintenance, etc.

2. Model Meaning & Explanation

The coding of the product model contains the core structural characteristics and parameter information of the transformer. The specific meaning of each part of the model is as follows:

3. Operating Environmental Conditions

• Installation altitude shall not exceed 1000m (normal time), special environment shall be specified separately;
• Ambient temperature shall not be higher than 40℃;
• Outdoor minimum temperature is -25℃.
• Transformers operating under special conditions can be provided according to user requirements.

4. Product Characteristics

• The new standard was officially implemented on June 1, 2021. Newly increased transformers must meet the new energy efficiency standard requirements, with the minimum requirement meeting the new third-level energy efficiency grade (S13 oil-immersed transformer). The S22 transformer has excellent oil insulation performance and thermal conductivity, and at the same time, the transformer has a high cost performance ratio.
• It can solve the problems of large-capacity heat dissipation and high-voltage electrical breakdown of transformers.
• The S22 oil-immersed transformer is fully sealed, which effectively prevents insulation aging and does not age.
• The core of the S22 transformer adopts higher-quality silicon steel sheets, with increased core cross-sectional area, which is energy-saving type with higher energy efficiency. The S22-630kVA saves more than 10,000 kWh of electricity per year compared with S13-630kVA.

5. Main Technical Parameters

6. Ordering Notes

When placing an order for the S20-M-30-2500/10-NX1 transformer, please provide the following information to ensure that the product meets the actual use requirements:

• Exact product model and specification
• Required rated capacity (kVA)
• Operating environmental conditions (if special requirements)
• Special technical requirements (if any)