IEC 62271-110:2017 Part 110: Inductive load switching

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IEC 62271-110:2017 High-voltage switchgear and controlgear - Part 110: Inductive load switching

IEC 62271-110:2017 is applicable to AC switching devices designed for indoor or outdoor installation, for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 1? 000 V and applied for inductive current switching. It is applicable to switching devices (including circuit-breakers in accordance with IEC 62271-100) that are used to switch high?voltage motor currents and shunt reactor currents and also to high-voltage contactors used to switch high-voltage motor currents as covered by IEC 62271-106.
This fourth edition cancels and replaces the third edition published in 2012 and constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- all switching devices are now covered, not only circuit-breakers;
- a limited number of T10 tests no longer covers shunt-reactor switching tests below 52 kV;
- evaluation and reporting of a re-ignition-free arcing time window has been added.

Publication type        International Standard
Publication date        2017-07-28
Edition        4.0
Available language(s)        English/French
TC/SC        TC 17/SC 17A - Switching devicesrss
ICS        29.130.10 - High voltage switchgear and controlgear
Stability date          2022
Pages        63
File size        1524 KB