IEC TS 60034-27:2006

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Nature of PD in rotating machines
   4.1 Basics of PD
   4.2 Types of PD in rotating machines
   4.3 Pulse propagation in windings
5 Measuring techniques and instruments
   5.1 General
   5.2 Influence of frequency response of measurement system
   5.3 Effects of PD coupling units
   5.4 Wide-band and narrow band measuring systems
6 Visualization of measurements
   6.1 General
   6.2 Minimum scope of PD data presentation
   6.3 Additional means of PD data representation
7 Test circuits
   7.1 General
   7.2 Individual winding components
   7.3 Complete winding
8 Normalization of measurements
   8.1 General
   8.2 Individual winding components
   8.3 Complete windings
9 Test procedures
   9.1 Acquiring PD measurements on windings and winding
        components
   9.2 Identifying and locating the source of partial
        discharges
10 Interpretation of test results
   10.1 General
   10.2 Interpretation of PDIV, PDEV and Q[m]
   10.3 PD pattern recognition
11 Test report
Annex A (informative) On-line partial discharge measurements
Annex B (informative) Non-electrical methods of PD detection
                      and methods for localization
Annex C (informative) External noise, disturbance and sensitivity
Annex D (informative) Methods of disturbance suppression
Annex E (informative) Interpretation of PD magnitude data and
                      phase resolved PD patterns
Bibliography

Provides a common basis for measuring techniques and instruments, the arrangement of test circuits, normalization and testing procedures, noise reduction, the documentation of test results, the interpretation of test results with respect to partial discharge off-line measurements on the stator winding insulation of rotating electrical machines.