BS EN 60214-1:2014

1 Scope
2 Normative references
3 Terms and definitions
4 Service conditions
5 Requirements for on-load tap-changers
6 Requirements for motor-drive mechanisms for
   on-load tap-changers
7 Requirements for de-energized tap-changers
8 Requirements for motor-drive mechanisms for
   de-energized tap-changers
9 Nameplate
10 De-energized tap-changer warning label
11 Manufacturers operating instructions
Annex A (normative) - Supplementary information on
        switching duty on main and transition contacts
        relating to resistor type tap-changers
Annex B (normative) - Supplementary information on
        switching duty relating to reactor type
        tap-changers
Annex C (normative) - Method for determining the
        equivalent temperature of the transition
        resistor using power pulse current
Annex D (informative) - Simulated a.c. circuits for
        service duty and breaking capacity tests
Annex E (informative) - Example of a synthetic
        test circuit for service duty test of
        vacuum type tap-changers
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

Pertains to on-load tap-changers of both resistor and reactor types, deenergized tap-changers, and their motor-drive mechanisms.

This part of IEC60214 applies to on-load tap-changers of both resistor and reactor types, de-energized tap-changers, and their motor-drive mechanisms. It applies mainly to tap-changers immersed in mineral insulating oil according to IEC60296 but may also be used for tap-changers with air or gas insulation or immersed in other insulating liquids insofar as conditions are applicable. It applies mainly to tap-changers with arcing contacts but may also be used for arcing-free on-load tap-changers (such as electronic switching) insofar as conditions are applicable. This part of IEC60214 applies to power and distribution transformers of all types and also to reactors. It does not apply to transformers and reactors mounted on railway rolling stock.