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TAP-CHANGERS - PART 1: PERFORMANCE REQUIREMENTS AND TEST METHODS
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Available format(s): Hardcopy, PDF
Language(s): English
Published date: 01-01-2014
Publisher: National Standards Authority of Ireland
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.Only cited Standards give presumption of conformance to New Approach Directives/Regulations.Dates of withdrawal of national standards are available from NSAI.
FOREWORD1 Scope2 Normative references3 Terms and definitions4 Service conditions5 Requirements for on-load tap-changers6 Requirements for motor-drive mechanisms for on-load tap-changers7 Requirements for de-energized tap-changers8 Requirements for motor-drive mechanisms for de-energized tap-changers9 Nameplate10 De-energized tap-changer warning label11 Manufacturers operating instructionsAnnex A (normative) - Supplementary information on switching duty on main and transition contacts relating to resistor type tap-changersAnnex B (normative) - Supplementary information on switching duty relating to reactor type tap-changersAnnex C (normative) - Method for determining the equivalent temperature of the transition resistor using power pulse currentAnnex D (informative) - Simulated a.c. circuits for service duty and breaking capacity testsAnnex E (informative) - Example of a synthetic test circuit for service duty test of vacuum type tap-changersBibliographyAnnex 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.
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