Search Results - "Laghari, J.R."

Models for insulation aging under electrical and thermal multistress by Cygan, P., Laghari, J.R.

“…A review of the methods and models used in lifetime studies of solid insulators under single- and multiple-stress conditions is presented. The statistical…”
Get full text

Effect of high energy electron radiation on MIPB-impregnated polypropylene film by Hammoud, A.N., Laghari, J.R., Krishnakumar, B.

“…The effect of impregnating capacitor-grade polypropylene film with an aromatic hydrocarbon fluid is examined with a view towards assessing the response under…”
Get full text

A brief survey of radiation effects on polymer dielectrics by Laghari, J.R., Hammoud, A.N.

“…Future space power needs are extrapolated to be at least three to four orders of magnitude more than is currently available. This long-term reliable power will…”
Get full text

Energy-storage pulsed-power capacitor technology by Laghari, J.R., Sarjeant, W.J.

“…Fundamentals of dielectric capacitor technology and multifactor stress aging of all classes of insulating media that form elements of this technology are…”
Get full text

Determination of aging-model constants under high frequency and high electric fields by Khachen, W., Laghari, J.R.

“…Polypropylene film is tested for life under HV, frequencies up to 30 kHz, and aging and breakdown studies are conducted. The life data obtained is applied to…”
Get full text

High-voltage pulsed life for multistressed polypropylene capacitor dielectric by Laghari, J.R.

“…High-voltage polypropylene capacitors were aged under singular as well as simultaneous multiple stresses (electrical, thermal, and radiation) at the University…”
Get full text

Effects of multistress aging (radiation, thermal, electrical) on polypropylene by Cygan, S.P., Laghari, J.R.

“…Capacitor-grade polypropylene films were aged under multiple stresses (electrical, thermal, and radiation). The aging experiments were performed for both…”
Get full text

Effects of fast neutron radiation on polypropylene by Cygan, S., Laghari, J.R.

“…Capacitor-grade polypropylene films were irradiated in a 2-MW thermal nuclear reactor and exposed to fast neutron radiation at a flux rate of 2.6*10/sup 12/…”
Get full text

Simulation of air core pulse transformer by Suthar, J.L., Laghari, J.R.

“…A high voltage air core pulse transformer was simulated using PSPICE program. The most common problem encountered in transformer winding insulation, that of…”
Get full text

Polypropylene for high voltage high frequency airborne applications by Khachen, W., Laghari, J.R.

“…Polypropylene is characterized for airborne high-power applications under high-voltage, high-frequency conditions. The properties that are measured include the…”
Get full text

A review of electrical and thermal multistress aging models by Cygan, P., Laghari, J.R.

“…A review of the methods and models used in lifetime studies of solid insulators under single- and multiple-stress conditions is presented. The statistical…”
Get full text

Breakdown studies of SF/sub 6//argon gas mixtures by Khechen, W., Laghari, J.R.

“…Mixtures of argon and SF/sub 6/ were investigated to determine the improvement in the dielectric strength compared to that of pure argon. It was found that a…”
Get full text

Glow discharge aging of Kapton film by Khachen, W., Laghari, J.R.

“…Summary form only given, as follows. Kapton film is commonly used as an electrical and thermal insulator in most spacecraft. The voltages associated with space…”
Get full text

High temperature studies of perfluoroalkoxy (PFA) film (for HV capacitors) by Suthar, J.L., Laghari, J.R.

“…Teflon perfluoroalkoxy (PFA) film was characterized electrically to explore the possibility of its use for high-temperature high-voltage capacitors for space…”
Get full text

Usefulness of SPICE in high voltage engineering education by Suthar, J.L., Laghari, J.R., Saluzzo, T.J.

“…The usefulness of the SPICE circuit analysis program is demonstrated in high voltage engineering education, where assembling the actual circuit might be very…”
Get full text

A prediction of deposition of contaminants on insulator surface with and without grading rings by Alem, M., Laghari, J.R.

“…The deposition of contaminants on a HVDC insulator is primarily governed by the inwardly-directed component of the electric field at the insulator surface…”
Get full text

Accelerated life studies of polyimide film under electrical and thermal multistress by Laghari, J.R., Cygan, P.J.

“…Accelerated life studies on a high-temperature polyimide film (Kapton) were conducted under simultaneous electrical and thermal stress at 60 Hz and 400 Hz. The…”
Get full text

Effect of ionizing radiation on the electrical characteristics of polyvinylidene fluoride (PVF/sub 2/) by Suthar, J.L., Laghari, J.R.

“…The influence of high-energy electron irradiation on the electrical properties of biaxially oriented polyvinylidene fluoride (PVF/sub 2/) film was…”
Get full text

Dielectric breakdown of polypropylene under high frequency fields by Khachen, W., Laghari, J.R., Sarjeant, W.J.

“…Polypropylene, a low-loss, high-dielectric-strength film was characterized for its dielectric properties under high-voltage, high-frequency conditions. The…”
Get full text

Effect of nuclear radiation on the electrical properties of chemical double layer capacitors by Laghari, J.R., Hammoud, A.N.

“…The effects of nuclear radiation on the electrical properties of chemical double-layer capacitors are determined. The capacitors were irradiated in a 2-MW…”
Get full text