22 Figure 4 – Leakage fields for a three-winding transformer with decoupled valve windings. 11 Figure 3 – Leakage f ields for a three-winding transformer with closely coupled valve windings. IEC TR 6:2019 is available as IEC TR 6:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. 90 Figure 1 – B6U or DB 6 pulse double bridge connection. 78 Ann ex J ( nor mativ e) Cor relation between I EC 61378- 1 and IEC 601 46- 1-1 r ati ngs. 73 Ann ex I ( inf ormative) Phase dis placem ent con nec tions and ter minal indications of converter transformers. 71 Ann ex H ( inf orm ati ve) Det erm ination o f the trans former voltag e r ati o a nd pha se displacement by the turn ratio measurements. 70 Ann ex G ( inf ormativ e) Short-circuit m eas ure ments of recti fier trans formers e qui ppe d with built in transductors. 3D simulation and guidelines for tank losses evaluation and tank hotspot calculation. 67 Ann ex F ( inf orm ati ve) Determinat ion of los s in transform er tan k due to magne tic fie ld. The unit rating and number of generating sets shall be adapted to the load profile. 66 Ann ex E ( inf ormative) Guidel ines for des ign review. 4.15) Location of electrical equipment in units (see IEC 61892-1. 57 Ann ex D ( inf orm ati ve) Examples o f dut y cyc les. 56 Ann ex C ( inf orm ati ve) Current sha rin g m eas urement in high c urren t v alv e windings. 38 Ann ex B ( inf ormative) Short-circ uit tes t c urrents and load l oss es in trans form ers for single-way converters (total loss injection). 35Īnn ex A ( inf ormative) Determinat ion of trans former ser vice l oad los s a t r ate d nonsinusoidal converter current from measurements with rated transformer current of fundamental frequency. On load noise level with transductors and/or IPT. Test of temperature rise on dry-type transformers. Test bus bars configuration for short circuit of high current valve windings. Load loss measurement in rectifier transformers with transductors in the same tank. 31ĭielectric test between interleaved valve windings. Measurement of voltage ratio and phase displacement. Measurement of commutating reactance and determination of the inductive voltage drop. Voltage drops in transformers and reactors. Losses in interphase transformers, current-balancing reactors, seriessmoothing reactors and transductors.
19Įffect of geometrical winding arrangement and magnetic coupling between windings on their eddy current losses due to harmonics in transformers with three or more windings wound on the same core limb. 15Ĭurrent sharing, losses and hot spot in high current windings. 15ĭetermination of transformer load loss under distorted current loading. Load loss and voltage drop in transformers and reactors. Units with tertiary windings loaded with filter and compensation. Phase displacement and terminal identification f or three-phase transformer. Transformer energized from a converter/inverter with or without variable frequency. Rated power at rated frequency and load capability. Provision for unusual service conditions. ® Registered trademark of the International Electrotechnical CommissionĬONTENTS FOREWORD. INTERNATIONAL ELECTROTECHNICAL COMMISSION Omformere.Converter transformers – Part 1: Transform Transformers ers for industrial applications the insulation tests have been revised considering the insulation co-ordination Ģ9.200 - Likerettere.
the service condition tolerances have been revised according to the IEC 61000 series correction of definitions and addition of new terms, especially terms concerning EMC, harmonic distortion and insulation co-ordination re-edition of the whole standard according to the current directives This fourth edition constitutes a technical revision and introduces five main changes: Parts of this standard are also applicable to other types of electronic power converter provided that they do not have their own product standards. It is primarily intended to specify the basic requirements for converters in general and the requirements applicable to line commutated converters for conversion of a.c.
IEC 6:2009 specifies the requirements for the performance of all semiconductor power converters and semiconductor power switches using controllable and/or non-controllable electronic valve devices. Semiconductor converters - General requirements and line commutated converters - Part 1-1: Specification of basic requirements