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Rotating electrical machines - Part 25: AC electrical machines used in power drive systems - Application guide
30.60 Close of voting/ comment period
Rotating electrical machines - Part 26: Effects of unbalanced voltages on the performance of three-phase cage induction motors
60.00 Standard under publication
Rotating machinery - Part 27-8: Detection of interturn short-circuits in rotor windings of cylindrical rotor synchronous generator
20.99 WD approved for registration as CD
Rotating electrical machines - Part 27-6: On-line partial discharge measurements of rotating machine windings supplied from an inverter
50.00 Final text received or FDIS registered for formal approval
Rotating electrical machines - Part 30-1: Efficiency classes of line operated AC motors (IE code)
50.60 Close of voting. Proof returned by secretariat
Rotating electrical machines - Part 30-2: Efficiency classes of variable speed AC motors (IE-code)
30.20 CD study/ballot initiated
Rotating electrical machines - Part 32: Measurement of stator end-winding vibration at form-wound windings
60.00 Standard under publication
Guidelines for condition-based evaluation and maintenance of cylindrical-rotor synchronous generators
20.99 WD approved for registration as CD
Technical Specifications for adjustable speed pumped storage system and its generator-motor
20.99 WD approved for registration as CD
Rotating electrical machines - Part 8: Terminal markings and direction of rotation
40.99 Full report circulated: DIS approved for registration as FDIS
Amendment 2 (Fragment 1) - Standard voltages for LVDC supply and LVDC equipment (Proposed horizontal standard)
40.00 DIS registered
Amendment 2 (Fragment 2) - Standard voltages for HVDC supply and HVDC equipment (Proposed horizontal standard)
40.00 DIS registered
Field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines
30.99 CD approved for registration as DIS
IEC 60050-192: International Electrotechnical Vocabulary (IEV) – Part 192: Dependability
60.00 Standard under publication
IEC 60050-417: International Electrotechnical Vocabulary (IEV) - Part 417: Marine energy - Wave, tidal and other water current converters
40.99 Full report circulated: DIS approved for registration as FDIS
IEC 60050-421 International Electrotechnical Vocabulary (IEV) Part 421: Power transformers and reactors
50.60 Close of voting. Proof returned by secretariat
IEC 60050-602 International Electrotechnical Vocabulary (IEV) - Part 602: Generation, transmission and distribution of electricity - Generation
40.60 Close of voting
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