IEC TS 60034-25:2014

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 System characteristics
5 Losses and their effects (for induction electrical
   machines fed from voltage source converters)
6 Acoustic noise, vibration and torsional oscillation
7 Electrical machine insulation electrical stresses
8 Bearing currents
9 Installation
10 Additional considerations for permanent magnet
   (PM) synchronous electrical machines fed by voltage
   source converters
11 Additional considerations for cage induction electrical
   machines fed by high voltage source converters
12 Additional considerations for synchronous electrical
   machines fed by voltage source converters
13 Additional considerations for cage induction electrical
   machines fed by block-type current source converters
14 Additional considerations for synchronous electrical
   machines fed by LCI
15 Additional considerations for cage induction electrical
   machines fed by pulsed current source converters
   (PWM CSI)
16 Wound rotor induction (asynchronous) electrical
   machines supplied by voltage source converters
   in the rotor circuit
17 Other electrical machine/converter systems
18 Special consideration for standard fixed-speed
   induction electrical machines in the scope of
   IEC 60034-12 when fed from voltage source converter
19 Additional considerations for synchronous reluctance
   electrical machine fed by voltage source converters
Annex A (informative) - Converter characteristics
Annex B (informative) - Output characteristics of 2 level
        voltage source converter spectra
Annex C (informative) - Voltages to be expected at the power
        interface between converter and electrical machine

IEC TS 60034-25:2014 describes the performance characteristics of a.c. electrical machines for use on converter supplies. For electrical machines specifically designed for converter duty application design features are defined. It also specifies the interface parameters and interactions between the electrical machine and the converter including installation guidance as part of a power drive system, but except for the voltage at the power interface which is described in IEC 61800-8. The main technical changes with regard to the previous edition are as follows:
- merging of IEC TS 60034-17 into IEC TS 60034-25 adding a clause which now includes all specific requirements for standard non-definite purpose electric machines;
- removal of Annex C: Noise increments due to converter supply.