NOVELTY - The fuel convertor consists of pair of electrodes (12,14). The conductive structure (12) and electrode (14) with a gap (16) in between, is provided within the reaction chamber (18). The gap is filled with a fuel air mixture. The power supply connected to the 2 electrodes provide voltage of 100 volts to 40 kilovolts and the current of 100 milliamps to 1 amp to generate a discharge (22) to reform fuel.    USE - For hydrocarbon fuel reformer.    ADVANTAGE - Heat exchanger is used to decrease power consumption from power supply. Increases hydrogen production rate by increasing the air/fuel ratio and fuel throughput. The power supply includes saturable inductor to limit current.    DETAILED DESCRIPTION - The convertor operates at pressure up to 500 psi, includes reaction extension region electrically heated to increase residence time in high temperature zone. The extension cylinder includes electrically heated frit and/or electrically conducting honeycomb which includes catalyst in its surface. The insert either metallic or ceramic is provided in reaction extension region and in reaction chamber to increase temperature. The power supply used is a neon transformer power supply. The fuel-air mixture is selected for operation between stoichiometric partial oxidation and full oxidation and includes a catalytic water-shift reaction region which is maintained in temperature range of approximately 200-700degreesC. An additional power supply is provided for simultaneous operation in a low voltage, high current DC are mode and a high voltage, low current discharge mode. Electrical power consumption is done between 0.3-10 % of thermal power content of hydrogen rich gas produced by converter. The plasma fuel convertor is brought into contact with a catalyst. For nitrogen oxide catalyst regeneration. An electrically conductive structure forming one electrode arranged to create a gap with respect to another electrode in reaction chamber. Either of the electrode is covered with dielectric coating to produce discharge in gap between either dielectric or dielectric electrode. A fuel air mixture is provided inside the gap. The average power supplied to plasma is between 10-1000 watts. A partial oxidation reaction of hydrocarbon fuel and oxygen produces reaction products including hydrogen and carbon monoxide. The plasma sustains oxidation reaction of hydrocarbon fuel and oxygen. The fuel and air mixture is introduced upstream from the plasma and addition air fuel mixture of different composition is introduced downstream from the plasma. The air and fuel mixture introduced upstream from the plasma flows through the electrode gap. The power supply has variable frequency, with power being controlled by adjusting the frequency of power supply up to 100-200 kHz. The oxygen/fuel ratio of fuel/air mixture is varied during transient conditions. Oxygen to carbon atomic ratio during turn on and normal operation is between 1.2 and 2.5 with or without intermittent operation. Oxygen to carbon ratio is between 1.2-2.0. An oxygen sensor is provided in contact with the reformate to control conversion efficiency by changing either power level or oxygen fuel ratio or both. Plasma used is breakdown glow discharge or silent discharge plasma. The convertor includes either an inert or catalyst or nickel based catalyst on alumina substrate, which provides increased surface area downstream from the plasma discharge.    DESCRIPTION OF DRAWING(S) - The figure shows cross sectional view of high voltage, low current discharge plasma fuel convertor.    Conductive structure (12)    Electrode (14)    Gap (16)    Rector chamber (18)    Discharge (22)