IEC_60186ed2.0b.img.pdf

NORMECEIINTERNATIONALEIECINTERNATIONAL186STANDARDDeuxieme editionSecond edition1987Transformateurs de tensionVoltage transformers CEI 1987 Droits de reproduction rservs-Copyright-all rights reservedAucune partie de cette publication ne peut etre reproduite niNo part of this publication may be reproduced or utilized inutilisee sous quelque forme que ce soit et par aucun pro-any form or by any means,electronic or mechanical,cede,electronique ou mecanique.y compris la photocopie etincluding photocopying and microfilm,without permissionles microfilms,sans accord ecrit de editeurin writing from the publisher.Bureau Central de la Commission Electrotechnique Intemationale 3,rue de Varemb Geneve,SuisseCommission Electrotechnique InternationaleCODE PRIXIECInternational Electrotechnical CommissionPRICE CODEXMeAyHapoHaR neTpoTeXHHecHaR HoMHCCHRPour prix,voir catalogue en vigueurFor price,see current catalogue186IEC1987-3-CONTENTSPage99CHAPTER I:GENERAL REQUIREMENTS APPLICABLETO ALL VOLTAGE TRANSFORMERSClauseSECTION ONE GENERAL1.Scope12.General requirements。111SECTION TWO-RATING AND PERFORMANCE REQUIREMENTS APPLICABLETO ALL VOLTAGE TRANSFORMERS5.Standard values of rated voltages.,.:.,6.Standard values of rated output0”*”。”。”+”。”年4。，。，。4197.Standard values of rated voltage factor218.Limits of temperature rise.9.Insulation requirements.。9a.Short-circuit withstand capability,33SECTION THREE TESTS GENERALi0.Classification of tests.,.,33SECTION FOUR-TYPE TESTS11.Temperature-rise test35l2.Short-circuit withstand capability test。3713.Impulse tests on primary winding3714.Wet test for outdoor type transformers8SECTION FIVE-ROUTINE TESTS15.Verification of terminal markings044中”中年年884。4。+，。41l6.Power-frequency tests on primary windings and measurement of partial discharges,l7.Power-frequency tests between sections and on secondary windings,.,45SECTION SIX-SPECIAL TESTSl8.Chopped lightning-impulse test on primary windings,.,。子SECTION SEVEN-MARKINGl9.Rating plate markings.,%SECTION EIGHT TERMINAL MARKINGS21.Markings47CHAPTER II:ADDITIONAL REQUIREMENTS FOR SINGLE-PHASEMEASURING VOLTAGE TRANSFORMERSSECTION NINE一GENERAL22 Scope5123.Definitions,51SECTION TEN ACCURACY REQUIREMENTS24.Accuracy class designation。25.Limits of voltage error and phase displacement.,.,。,SECTION ELEVEN-TESTS FOR ACCURACY26.Type tests,5326a.Routine tests53SECTION TWELVE-MARKING27.Marking of the rating plate of a measuring voltage transformer.