Transformer Safety, update on 61558 standard

This comprehensive presentation, led by Antwi and Markus, delves into the critical aspects of transformer safety and the methods by which a high level of safety can be achieved in transformer design and application. Understanding and adhering to international safety standards is paramount, especially in power supply units (SMPS) where transformers play a crucial role. The presentation will particularly focus on the IEC 61558 safety standard and its implications. 

The session will discuss: 

• The safety standard IEC 61558 in direct relation to both transformer design principles and their application in Switch-Mode Power Supply (SMPS) units. 
• The new aspects of the 2021 version of IEC 61558, which is yet to be fully released globally, providing an early insight into future requirements. 
• A detailed presentation of the various IEC 61558 safety levels relevant to transformer design, specifically addressing: 
• Overvoltage categories and their impact on insulation requirements. 
• Precise requirements for creepage and clearance distances to prevent electrical breakdown. 
• The importance and methodology of the partial discharge test for assessing insulation quality. 
• The acceptance and harmonization of IEC 61558 with other relevant safety standards, such as IEC 62368. 

Presentation: Transformer Safety, update on 61558 standard