1. Measurement Transformers. Part 2. Additional Requirements for Current Transformers: IEC 61869-2 [on-line] (http://protect. gost.ru).
2. Instrument Transformers, Part 6: Requirements for Protective Current Transformers for Transient Performance: IEC 60044-6 (1992-03) [on-line] (http://standards/globalspec.com).
3. Standard Requirements for Instrument Transformers: IEEE/ANSI C57.13 (2016) [on-line] (
http://ieeexplore.ieee.org
).
4. Current Transformers: BS (British Standard) 3938 (1973) [on-line] (http://shop. bsigroup. com).
5. CT Requirements for GE Multilin Relays (R2) / Multiline Power Management Lentronics [on-line].— (
https://ru.scribd.com
).