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Analysis of the Frequency Characteristics of Corona Discharge at Low Pressure.

ADA239940

Publication Date	1991
Personal Author	Lewis, T. G.; Karady, G. G.; Sirkis, M. D.
Page Count	83
Abstract	Corona discharge is becoming more of a concern now that the space program is looking at higher power and voltage requirements for future missions. Improved detection methods for studying corona discharge will increase the knowledge base of how this phenomenon occurs, what effects it has on power systems, and how it is affected by outside influences. A better understanding of corona discharge will enable designers to improve on the space applications of insulation and dielectrics, and develop proper detection techniques. A test system was designed and constructed to measure the frequency spectrum of corona discharge current in low pressure. Various test samples in different arrangements were energized by ac voltage until corona discharge occurred. This same test was repeated at different pressures. The results indicate that the frequency spectrum of the discharge current changes with a change in pressure. At low pressures, the discharge frequency spectrum is concentrated in a narrow band with a peak at 17 kHz. As the pressure is increased, the spectral width increases to include components across a much broader band. Other tests were performed to correlate the frequency spectrum data to the shape of the discharge pulse and the physical appearance of the glow discharge. (Author)
Keywords	Alternating current Detection Dielectrics Electric current Electric discharges Electrical corona Energy Frequency Glow discharges Insulation Low pressure Narrowband Power supplies Pulses Requirements Sampling Space sciences Space technology Spectra Test and evaluation Voltage Width Corona discharges Power distribution Theses
Source Agency	Non Paid ADAS
NTIS Subject Category	46G - Plasma Physics 46 - Physics 84 - Space Technology 97I - Electric Power Production
Corporate Authors	Phillips Lab., Kirtland AFB, NM.
Document Type	Technical Report
Title Note	Rept. for Jan 90-Apr 91.
NTIS Issue Number	199124

Analysis of the Frequency Characteristics of Corona Discharge at Low Pressure.

Analysis of the Frequency Characteristics of Corona Discharge at Low Pressure.
ADA239940

Publication Date	1991
Personal Author	Lewis, T. G.; Karady, G. G.; Sirkis, M. D.
Page Count	83
Abstract	Corona discharge is becoming more of a concern now that the space program is looking at higher power and voltage requirements for future missions. Improved detection methods for studying corona discharge will increase the knowledge base of how this phenomenon occurs, what effects it has on power systems, and how it is affected by outside influences. A better understanding of corona discharge will enable designers to improve on the space applications of insulation and dielectrics, and develop proper detection techniques. A test system was designed and constructed to measure the frequency spectrum of corona discharge current in low pressure. Various test samples in different arrangements were energized by ac voltage until corona discharge occurred. This same test was repeated at different pressures. The results indicate that the frequency spectrum of the discharge current changes with a change in pressure. At low pressures, the discharge frequency spectrum is concentrated in a narrow band with a peak at 17 kHz. As the pressure is increased, the spectral width increases to include components across a much broader band. Other tests were performed to correlate the frequency spectrum data to the shape of the discharge pulse and the physical appearance of the glow discharge. (Author)
Keywords	Alternating current Detection Dielectrics Electric current Electric discharges Electrical corona Energy Frequency Glow discharges Insulation Low pressure Narrowband Power supplies Pulses Requirements Sampling Space sciences Space technology Spectra Test and evaluation Voltage Width Corona discharges Power distribution Theses
Source Agency	Non Paid ADAS
NTIS Subject Category	46G - Plasma Physics 46 - Physics 84 - Space Technology 97I - Electric Power Production
Corporate Authors	Phillips Lab., Kirtland AFB, NM.
Document Type	Technical Report
Title Note	Rept. for Jan 90-Apr 91.
NTIS Issue Number	199124