New Delhi, Apr 01: The Research Designs and Standards Organisation (RDSO), a research and development unit of Indian Railways, has developed Insulated Gate Bipolar Transistor (IGBT) based Voltage Regulating Panel (VRP) for easy low current gate control. The VRP is an automatic regulating and current limiting panel for the auxilliary generator to be used for battery charging and for supplying power for control equipment. IGBT does not need forced commutation for switching off IGBT based VRP. It also provides integrated circuits, which functions as generator for working of its control. The switch mode controlled regulator is more reliable than the conventional thyristor regulator because of low power dissipation and high margin of voltage and current for the power device.
The field trial of the VRP has given trouble-free service, a railway release said.
Bureau Report