DD CLC/TS 60034-18-42:2011

INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Voltage effects from converter operation
5 Type II insulation systems
6 Stress factors for converter-fed Type II insulation
   systems
7 Qualification and acceptance tests
8 Qualification of turn insulation
9 Qualification of ground wall insulation systems
10 Qualification of the stress control and corona
   protection system
11 Preparation of test objects
12 Qualification test procedures
13 Qualification test pass criteria
14 Acceptance test for Type II insulation systems
   (Type test)
15 Analysis, reporting and classification
Annex A (informative)
Annex B (informative)
Annex C (informative)
Annex ZA (normative) - Normative references
         to international publications with their
         corresponding European publications

Describes criteria for assessing the insulation system of stator/rotor windings of single or polyphase AC machines which are subjected to repetitive impulse voltages, such as pulse width modulation (PWM) converters, and expected to withstand partial discharge activity during service.

This Technical Specification defines criteria for assessing the insulation system of stator/rotor windings of single or polyphase AC machines which are subjected to repetitive impulse voltages, such as pulse width modulation (PWM) converters, and expected to withstand partial discharge activity during service. It specifies electrical qualification and acceptance tests on representative samples which verify fitness for operation with voltage-source converters.

This document does not apply to:

• Rotating machines which are fed by converters only for starting.

• Electrical equipment and systems for traction.

NOTE Although this Technical Specification deals with voltage-source converters, it is recognised that there are other types of converters that can create repetitive impulse voltages. For these converters, a similar approach to testing can be used if needed.