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Rotating electrical machines - Part 14: Mechanical vibration of certain machines with shaft heights 56 mm and higher - Measurement, evaluation and limits of vibration severity
20.99 WD approved for registration as CD
Rotating electrical machines - Part 18-31: Functional evaluation of insulation systems - Test procedures for form-wound windings - Thermal evaluation and classification of insulation systems used in rotating machines
30.60 Close of voting/ comment period
Rotating electrical machines - Part 18-41: Partial discharge free electrical insulation systems (Type I) used in rotating electrical machines fed from voltage converters - Qualification and quality control tests
30.99 CD approved for registration as DIS
Amendment 1 - Rotating electrical machines - Part 18-32: Functional evaluation of insulation systems (Type II) - Electrical endurance qualification procedures for form-wound windings
30.99 CD approved for registration as DIS
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
50.99 FDIS or proof approved for 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
30.60 Close of voting/ comment period
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)
30.60 Close of voting/ comment period
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
40.20 DIS ballot initiated: 12 weeks
Amendment 2 (Fragment 1) - Standard voltages for LVDC supply and LVDC equipment (Proposed horizontal standard)
30.20 CD study/ballot initiated
Amendment 2 (Fragment 2) - Standard voltages for HVDC supply and HVDC equipment (Proposed horizontal standard)
30.20 CD study/ballot initiated
Field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines
30.99 CD approved for registration as DIS
English