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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
30.60 Close of voting/ comment period
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 26: Effects of unbalanced voltages on the performance of three-phase cage induction motors
30.60 Close of voting/ comment period
Rotating electrical machines - Part 27-7: Insulation systems used in rotating electrical machines for sealed and moisture resistant winding type and quality control tests
30.60 Close of voting/ comment period
Rotating machinery - Part 27-8: Detection of interturn short-circuits in rotor windings of cylindrical rotor synchronous generator
30.60 Close of voting/ comment period
Rotating electrical machines - Part 27-6: On-line partial discharge measurements of rotating machine windings supplied from an inverter
20.99 WD approved for registration as CD
Rotating electrical machines - Part 30-1: Efficiency classes of line operated AC motors (IE code)
40.60 Close of voting
Rotating electrical machines - Part 30-2: Efficiency classes of variable speed AC motors (IE-code)
20.99 WD approved for registration as CD
Rotating electrical machines - Part 32: Measurement of stator end-winding vibration at form-wound windings
60.00 Standard under publication
Rotating electrical machines - Part 35: Technical requirements for electrical sheet metal and strip metal used in electrical machines
30.60 Close of voting/ comment period
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
30.60 Close of voting/ comment period
Amendment 2 (Fragment 1) - Standard voltages for LVDC supply and LVDC equipment (Proposed horizontal standard)
20.99 WD approved for registration as CD
Amendment 2 (Fragment 2) - Standard voltages for HVDC supply and HVDC equipment (Proposed horizontal standard)
20.99 WD approved for registration as CD
Field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines
30.99 CD approved for registration as DIS
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