Field Weakening Resistors ROV and Braking Resistors RT

ROV resistors are designed to provide field weakening of traction motors in locomotive traction mode.
RT resistors are designed to limit the current of traction motors in traction mode and to dissipate electrical energy in locomotive rheostatic braking mode.
The resistors are components for ROV-139, ROV-140 field weakening resistors and BПTP-63, BПTP-74 brake-starting resistor blocks.
Climatic version: U2 according to GOST 15150-69.

Technical specifications:

• Current type – DC
• Operating mode – continuous
• Operating position – horizontal
• Cooling type – natural / forced
• Overall dimensions, mm, max – 922×473×70
• Weight, kg, max – from 12.5 to 23.83
• Degree of protection – IP00
• Service life – 2 years