This part of GB 1094 applies to liquid-immersed transformers, identifies power transformers according to their cooling methods, defines temperature rise limits and gives the methods for temperature rise tests.
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Cooling Methods
5 Normal Cooling Conditions
6 Temperature Rise Limits
7 Temperature Rise Tests
Annex A (Informative) Dissolved Gases Analysis for the Detection of Local Overheating
Annex B (Informative) Techniques Used in Temperature Rise Testing of Liquid-Immersed Transformers
Annex C (Informative) Hot-spot Winding Temperature Rise Determination for OFAF and OFWF Cooled Transformers Based on the Top-liquid Temperature in Tank
Annex D (Informative) Methods to Estimate the Hot-spot Winding Temperature Rises
Annex E (Informative) Application of Optical Fibre Sensors for Winding Hot-spot Measurements
Bibliography
