Scientific paper ID 1249 : 2015/3

Laboratory rectifier stations are devices that are widely used in laboratory exercises, testing, repair and improvements to electrical installations and adjoining management and peripherals.

Laboratory rectifier stations are mobile power supply, where there is the possibility of fine adjustment of the effective value of the voltage over a wide range. Equipped with current limiting block which protects the station and test sites of overload and short circuit and not least ensure security and safe operation due to double galvanic isolation between input and output of the station.

The paper presents the design and modernization of the power part, management and protection of rectifying station TES 150. The modernization was performed using advanced composite IGBT transistors, microprocessor control and defend.