Failures’ Study of a New Character Three-Phase High Voltage Supply for industrial Microwave Generators with one magnetrons per Phase

Abstract

This article treats the development of one of the equivalent electrical models for a single phase power supply for one magnetron; in particular that of its own high voltage (HV) transformer newly dimensioned. This single phase system supplies a voltage doubler and current stabilizer circuit, which supplies a single magnetron. Then, by star connecting the three identical models of the single-phase power supply for one magnetron, we obtain a new character three-phase high voltage power supply for industrial microwave generators with one magnetron per phase. The simulation with EMTP (Electro Magnetic Transcients Program) in nominal operation has given the theoretical results close to the experimental measurements. Finally, the magnetrons’ failure of the microwave generator was also treated and allowed to observe the interaction’s influence between magnetrons; also the regulation of the anode current has been achieved successfully