DC Excitation Current Regulator for Traction Motors DRP 300/300 - Automatic Control for Metro Trains

The traction motor excitation current regulator of DRP-300/300 type is designed for automatic stepless regulation of excitation current of two groups of traction motors of metro cars in braking mode. The regulator is used both on newly developed and in-service cars of 81-714, 81-717 series and their modifications instead of obsolete thyristor regulator of excitation current RT-300/300 and is characterised by improved mass and dimensional characteristics, simplified design, lower maintenance costs. Execution : -in terms of exposure to climatic factors of the external environment according to the group of execution "U" category 2,

• - in terms of environmental impact and contact with live parts according to the group "U" category 2, - in terms of environmental impact and contact with live parts according to the group "IP 54".

• - with regard to the impact of mechanical factors of the external environment according to the group M25.