This standard specifies terms and definitions, product model, performance parameters, technical requirements, test items, marking, lifting, packaging, transportation and storage of oil-immersed amorphous alloy core distribution transformers.
This standard is applicable to:
——Off-circuit-tap-changing and single-phase oil-immersed amorphous alloy core distribution transformer of voltage class 6kV or 10kV, rated frequency 50Hz and rated capacity 5kVA ~160 kVA (hereinafter referred to as "single-phase transformer");
——Off-circuit-tap-changing and three-phase oil-immersed amorphous alloy core distribution transformer of voltage class 6kV, 10kV or 20kV , rated frequency 50Hz and rated capacity 30kVA ~2500 kVA (hereinafter referred to as "three-phase transformer");
——Off-circuit-tap-changing and three-phase oil-immersed amorphous alloy core distribution transformer of voltage class 35kV, rated frequency 50Hz and rated capacity 50kVA ~2500 kVA (hereinafter referred to as "three-phase transformer").
Note 1: the products of other rated capacity may make reference to this standard.
Note 2: the term transformer refers to three-phase transformer from Chapter 6.
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Product Model
5 Voltage Class 6kV and 10kV
6 Voltage Class 20 kV
7 Voltage Class 35 kV
Appendix A (Normative) Test Items for Transformer of Double High Voltages
This standard specifies terms and definitions, product model, performance parameters, technical requirements, test items, marking, lifting, packaging, transportation and storage of oil-immersed amorphous alloy core distribution transformers.
This standard is applicable to:
——Off-circuit-tap-changing and single-phase oil-immersed amorphous alloy core distribution transformer of voltage class 6kV or 10kV, rated frequency 50Hz and rated capacity 5kVA ~160 kVA (hereinafter referred to as "single-phase transformer");
——Off-circuit-tap-changing and three-phase oil-immersed amorphous alloy core distribution transformer of voltage class 6kV, 10kV or 20kV , rated frequency 50Hz and rated capacity 30kVA ~2500 kVA (hereinafter referred to as "three-phase transformer");
——Off-circuit-tap-changing and three-phase oil-immersed amorphous alloy core distribution transformer of voltage class 35kV, rated frequency 50Hz and rated capacity 50kVA ~2500 kVA (hereinafter referred to as "three-phase transformer").
Note 1: the products of other rated capacity may make reference to this standard.
Note 2: the term transformer refers to three-phase transformer from Chapter 6.
Contents of GB/T 25446-2010
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Product Model
5 Voltage Class 6kV and 10kV
6 Voltage Class 20 kV
7 Voltage Class 35 kV
Appendix A (Normative) Test Items for Transformer of Double High Voltages
