Partial discharge characteristics of oil-immersed insulation systems under dc, combined ac-dc and dc reversed polarity voltage
Conference
·
· IEEE Trans. Power Appar. Syst.; (United States)
OSTI ID:7194243
Breakdown characteristics of insulating oil, under combined ac-dc voltage and dc reversed polarity voltage, and partial discharge characteristics of oil-immersed insulation, under combined ac-dc voltage and polarity reversal of dc voltage were made clear by elementary experiments. After that, a numerical dc field mapping method for electric field analysis of two-dimensional configurations which consist of composite insulation and field mapping methods under combined ac-dc voltage and dc reversed polarity voltage were proposed. Furthermore, partial discharge characteristics of transformer insulation under dc, combined ac-dc voltage were experimentally made clear by practical trial models.
- Research Organization:
- Hitachi Ltd., Ibaraki, Japan
- OSTI ID:
- 7194243
- Conference Information:
- Journal Name: IEEE Trans. Power Appar. Syst.; (United States) Journal Volume: PAS-95:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
200302* -- Power Transmission & Distribution-- DC Systems-- (1989-)
24 POWER TRANSMISSION AND DISTRIBUTION
BREAKDOWN
DC SYSTEMS
DIELECTRIC PROPERTIES
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATION
ELECTRICAL PROPERTIES
EQUIPMENT
HVDC SYSTEMS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PERFORMANCE
PERFORMANCE TESTING
PHYSICAL PROPERTIES
POWER SYSTEMS
SEMICONDUCTOR DEVICES
SWITCHES
TESTING
THYRISTORS
TRANSFORMERS
24 POWER TRANSMISSION AND DISTRIBUTION
BREAKDOWN
DC SYSTEMS
DIELECTRIC PROPERTIES
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATION
ELECTRICAL PROPERTIES
EQUIPMENT
HVDC SYSTEMS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PERFORMANCE
PERFORMANCE TESTING
PHYSICAL PROPERTIES
POWER SYSTEMS
SEMICONDUCTOR DEVICES
SWITCHES
TESTING
THYRISTORS
TRANSFORMERS