GB/T 32288-2020 Translated English of Chinese Standard (GB/T 32288-2020, GBT32288-2020): Electrical steel core for power transformers [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]This Standard specifies the model representation method, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of electrical steel cores for power transformers. This Standard applies to electrical steel laminated core for power transformers. |
Contents
Foreword | 3 |
Scope | 5 |
Model Representation Method | 6 |
Test Method | 10 |
Inspection Rules | 12 |
Appendix A Normative Test Method of Core Geometric Characteristics | 13 |
Common terms and phrases
allowable deviation Baoding caliper Figure A.21 Core for Power core geometric characteristics core section symmetry core shall comply core-to-ground insulation current and sound departure-angle deviation Vernier caliper diagonal line Diagram Voltage level Edition Electric Co Electrical Steel Core electrical steel sheet ellipse finder Figure A.14 insulation value iron core Item Reference test JB/T lamination factor level of 35kV longitudinal shearing loss and no-load measuring block measuring platform Metal hair method and tool method of core mm Key no-load current no-load loss Perfect Circle Power Transformers provisions in Table provisions of GB/T range finder Figure Reference test method requirements of longitudinal Requirements SN Item residual curvature rough area Schematic Diagram shape and allowable Shear Dimension Requirements sheet length deviation SN Item Reference sound level Standard steel ruler Figure Tapeline/laser range finder Technical Requirements Testing Diagram transverse shearing Unit Vernier caliper Figure white edge Width deviation window height window width Xi’an