IEC 60034-22:2009

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Rating
5 Limits of temperature and temperature rise
   5.1 Base continuous rating
   5.2 Peak continuous rating
6 Parallel operation
   6.1 General
   6.2 Effect of electromechanical vibration and its
       frequency
7 Special load conditions
   7.1 General
   7.2 Unbalanced load current
   7.3 Sustained short-circuit current
   7.4 Occasional excess current capability
   7.5 Total harmonic distortion (THD)
   7.6 Radio interference suppression
8 Asynchronous generators with excitation equipment
   8.1 General
   8.2 Rated speed and rated slip
   8.3 Sustained short-circuit current
   8.4 Range of voltage setting
   8.5 Parallel operation
9 Operating limit values
10 Rating plate
Annex A (informative) - AC generator transient voltage
        characteristic following a sudden change in load
Bibliography

IEC 60034-22:2009 establishes the principal characteristics of a.c. generators under the control of their voltage regulators when used for reciprocating internal combustion engine driven generating set applications and supplements the requirements given in IEC 60034-1. It covers the use of such generators for land and marine use, but excludes generating sets used on aircraft or used to propel land vehicles and locomotives. The most important changes with respect to the previous edition are:
- technical changes to many definitions;
- revision of table 1 and of the annex.