> Product Brief

Three-dimensional core oil-immersed transformer is a new type of high-reliability transformer product with more reasonable structure, better performance, and lower manufacturing cost. The product breaks through the traditional flat structure and adopts a two-relative symmetrical three-dimensional structure. And because there is no air gap in its magnetic circuit, the magnetic conductivity direction of silicon steel strip is completely consistent with the direction of the magnetic circuit, the three core columns are arranged in an equilateral triangle three-dimensional arrangement, the length of the three magnetic circuits is consistent, and they are all the shortest, and there is no waste in the processing sleeve; As a result, it is an energy-efficient transformer that uses conventional materials but operates quietly and compactly. Its outstanding performance in reducing loss and saving materials is fully in line with China's energy-saving policy.

> Model Meaning

> Implementation Standards

◇ GB1094.1~2-2013 power transformer

◇ GB1094.3-2003 power transformer

◇ GB/T1094.4-2005 Power transformer

◇ GB1094.5-2008 power transformer

◇ GB/T6451-2015 Technical parameters and requirements of three-phase oil-immersed power transformer

◇ International standard IEC76

◇ GB/T25289-2010 Technical parameters and requirements of 20kV oil-immersed power transformer

> Structural Features

◇ Energy saving, consumption reduction and noise reduction characteristics;

◇ Save materials and reduce costs;

◇ Three-phase balance anti-short circuit ability is enhanced;

◇ Stable quality and improved production efficiency;

◇ Anti-theft, small footprint, beautiful appearance;

◇ Good economy, cost-effective.

> Main Technical Parameters

S13 type 30kVA~1 600kVA three-phase double-winding non-excitation voltage regulation distribution transformer

Note: The load loss values above the diagonal line in the table apply to the Dyn11 or Yzn11 connection groups, while the load loss values below the diagonal line apply to the Yyn0 connection.

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Note 1: For transformers with a rated capacity of 500kVA and below, the negative load loss value above the slash in the table applies to Dyn11 or Yzn11 coupling groups, and the load loss below the slash is appropriate used for YynO junction groups

Note 2: According to user needs, transformers with a high voltage tap range of +2*2.5% are available.

Note 3: Transformers with a low voltage of 0.69kV are available upon request.

Note 4: Other loss values are also available if the user wishes.

Technical requirements

1. Basic requirements 5.1.1 Transformers manufactured according to this standard shall comply with the provisions of GB-1094.1, GB1094.2.G81094.3, GB1094.5 and GB/T1094.7.

2. The design, manufacture and inspection of transformer banks and components shall meet the requirements of relevant standards and regulations.

3. The sound level of the transformer should comply with the provisions of Table 2, and the sound level determination method shall be GB/T1094.10.