Comparison of PD and DF test results before and after voltage endurance tests

Author

Zhu, H. ; Halldorson, G.L.

Author_Institution

Powertech Labs., Canada

fYear

2004

fDate

19-22 Sept. 2004

Firstpage

422

Lastpage

425

Abstract

The voltage endurance test on coils/bars is an accelerating aging test of the insulation system. The voltage endurance test can be used to assess the insulation quality of coil manufacturing. Partial discharge (PD) and dissipation factor (DF) tests are also diagnostic tools to discover insulation problems in coils/bars. Based on a large testing database, this paper presents the test data on a number of coils/bars to observe the general insulation performance of new coils/bars before and after voltage endurance tests. A comparison of PD and DF test results before and after voltage endurance tests can evaluate the effect of the aging tests on the insulation system. The paper would be helpful for both coil manufacturers and machine users to understand the insulation performance of machine coils/bars before and after voltage endurance tests.

Keywords

ageing; coils; insulation testing; life testing; machine insulation; machine testing; partial discharge measurement; PD; accelerating aging test; dissipation factor testing; insulation quality; insulation system; machine coils-bars; partial discharge testing; voltage endurance tests; Accelerated aging; Bars; Coils; Databases; Insulation testing; Life estimation; Manufacturing; Partial discharges; System testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 2004. Conference Record of the 2004 IEEE International Symposium on

ISSN

1089-084X

Print_ISBN

0-7803-8447-4

Type

conf

DOI

10.1109/ELINSL.2004.1380625

Filename

1380625