DocumentCode :
1676652
Title :
Advances in direct current high voltage continuity testing. Report of the NEMA magnet wire MW-7 technical committee
Author :
Barta, Donald J.
Author_Institution :
Phelps Dodge Magnet Wire Co., USA
fYear :
1999
fDate :
6/21/1905 12:00:00 AM
Firstpage :
165
Lastpage :
168
Abstract :
The NEMA magnet wire technical committee has been investigating direct current high voltage continuity (HVC) testing of magnet wire for several years. This paper describes efforts to better define (1) a continuity fault, (2) the continuity testing equipment, and (3) a new HVC electrode option. The description of the DC-HVC testing equipment in NEMA MW-1000 Part 3 needs to be improved to reduce the variations allowed in the equipment design and the corresponding wire testing results. The description of the equipment can be improved even without a better definition and understanding of an HVC fault. Investigations of the fault current waveform at the fault circuit has resulted in new insights in the detection and definition of HVC faults. The other major HVC issue still. Remaining is eliminating the double counting of faults by the dual sheave electrodes. A new graphite fiber electrode may resolve the issues of double counting without the potential of introducing any additional problems
Keywords :
carbon fibres; electrical faults; electrodes; magnets; testing; wires (electric); HVC electrode; NEMA MW-1000 Part 3; NEMA Magnet Wire MW-7 Technical Committee; continuity fault; continuity testing equipment; direct current high voltage continuity testing; double counting elimination; graphite fiber electrode; Circuit faults; Circuit testing; Electrical fault detection; Electrodes; Fault currents; Fault detection; Optical fiber devices; Pulleys; Voltage; Wire;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Insulation Conference and Electrical Manufacturing & Coil Winding Conference, 1999. Proceedings
Conference_Location :
Cincinnati, OH
ISSN :
0362-2479
Print_ISBN :
0-7803-5757-4
Type :
conf
DOI :
10.1109/EEIC.1999.826200
Filename :
826200
Link To Document :
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