To obtain the full, updated document, you should use official standards bodies: IEC Webstore : The primary source for the international standard.
Critical for neutral system grounding. Major Sections of the Standard iec 600766 updated free pdf download
The standard, officially titled "Power transformers – Part 6: Reactors," is the definitive international guideline for the design, testing, and application of electrical reactors. This standard ensures that critical power system components—like shunt and current-limiting reactors—meet uniform quality and safety performance levels across global markets. Current Status and Updates To obtain the full, updated document, you should