ROV resistors are designed for field weakening of traction motors during locomotive traction operation.

RT resistors are designed to limit the current of traction motors in traction mode and to dissipate electrical energy during rheostatic braking.

These resistors are components of ROV-139, ROV-140 field weakening resistor systems and BPTR-63, BPTR-74 starting and braking resistor banks.

Climatic design: U2 in accordance with GOST 15150-69.

Technical Specifications

• Current type — DC
• Duty cycle — continuous
• Mounting position — horizontal
• Cooling type — natural or forced
• Maximum dimensions, mm — 922 × 473 × 70
• Weight, kg — 12.5–23.83
• Protection rating — IP00
• Warranty period — 2 years