CLC/TS 60034-25:2008
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Rotating electrical machines - Part 25: Guidance for the design and performance of a.c. motors specifically designed for converter supply
02-02-2024
12-12-2008
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 System characteristics
4.1 General
4.2 System information
4.3 Torque/speed considerations
4.4 Motor requirements
5 Losses and their effects (for induction motors fed from
U-converters)
5.1 General
5.2 Location of the additional losses due to converter
supply and ways to reduce them
5.3 Converter features to reduce the motor losses
5.4 Use of filters to reduce additional motor losses
due to converter supply
5.5 Temperature and life expectancy
5.6 Determination of motor efficiency
6 Noise, vibration and torsional oscillation
6.1 Noise
6.2 Vibration (excluding torsional oscillation)
6.3 Torsional oscillation
7 Motor insulation electrical stresses
7.1 General
7.2 Causes
7.3 Winding electrical stress
7.4 Insulation stress limitation
7.5 Responsibilities
7.6 Converter characteristics
7.7 Methods of reduction of voltage stress
7.8 Motor choice
8 Bearing currents
8.1 Sources of bearing currents in converter-fed
motors
8.2 Generation of high-frequency bearing currents
8.3 Common mode circuit
8.4 Stray capacitances
8.5 Consequences of excessive bearing currents
8.6 Preventing high-frequency bearing current damage
8.7 Additional considerations for motors fed by high
voltage U-converters
8.8 Bearing current protection for motors fed by
high-voltage current-source converters (I-converters)
9 Installation
9.1 Earthing, bonding and cabling
9.2 Reactors and filters
9.3 Integral motors (integrated motor and drive modules)
10 Additional considerations for permanent magnet (PM)
synchronous motors fed by U-converters
10.1 System characteristics
10.2 Losses and their effects
10.3 Noise, vibration and torsional oscillation
10.4 Motor insulation electrical stresses
10.5 Bearing currents
10.6 Particular aspects of permanent magnets
11 Additional considerations for cage induction motors
fed by high voltage U-converters
11.1 General
11.2 System characteristics
11.3 Losses and their effects
11.4 Noise, vibration and torsional oscillation
11.5 Motor insulation electrical stresses
11.6 Bearing currents
12 Additional considerations for synchronous motors
fed U-converters
12.1 System characteristics
12.2 Losses and their effects
12.3 Noise, vibration and torsional oscillation
12.4 Motor insulation electrical stresses
12.5 Bearing currents
13 Additional considerations for cage induction motors
fed by block-type I-converters
13.1 System characteristics
13.2 Losses and their effects
13.3 Noise, vibration and torsional oscillation
13.4 Motor insulation electrical stresses
13.5 Bearing currents
13.6 Additional considerations for six-phase cage
induction motors
14 Additional considerations for synchronous motors
fed by LCI
14.1 System characteristics
14.2 Losses and their effects
14.3 Noise, vibration and torsional oscillation
14.4 Motor insulation electrical stresses
14.5 Bearing currents
15 Additional considerations for pulsed I-converters (PWM CSI)
feeding induction motors
15.1 System characteristics
15.2 Losses and their effects
15.3 Noise, vibration and torsional oscillation
15.4 Motor insulation electrical stresses
15.5 Bearing currents
16 Other motor/converter systems
16.1 Drives supplied by cyclo-converters
16.2 Wound rotor induction (asynchronous) machines
supplied by I-converters in the rotor circuit
16.3 Wound rotor induction (asynchronous) machines
supplied by U-converters in the rotor circuit
Annex A (normative) - Converter characteristics
Annex B (informative) - Converter output spectra
Annex C (informative) - Noise increments due to converter
supply
Bibliography
Annex ZA (normative) - Normative references to international
publications with their corresponding
European publications
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