The braking resistor banks BTR-1400PUHL2 and BTR-1750PUHL2 are designed to dissipate electrical energy generated by traction motors operating in generator mode during electric braking of diesel locomotives.

They can also be used as a load for diesel generators during commissioning and testing without the use of a water rheostat.

Structurally, the units are designed as metal enclosures housing ribbon-type braking resistors. The design allows replacement of individual resistor elements during operation and maintenance.

They are used in TEP70BS series diesel locomotives.

Climatic design: UHL2 in accordance with GOST 15150-69.

Technical Specifications

• Nominal resistance of resistor elements at +20 °C, Ω:

Upper row:

- BTR-1400PUHL2 — 0.26–0.78

- BTR-1750PUHL2 — 0.09–0.86

Lower row:

- BTR-1400PUHL2 — 0.26–0.78

- BTR-1750PUHL2 — 0.17–0.78

• Maximum current, A — 820
• Maximum cooling air flow, m³/min — 780
• Maximum power, kW:

- BTR-1400PUHL2 — 1400

- BTR-1750PUHL2 — 1750

• Maximum dimensions, mm — 1135 × 923 × 562
• Maximum weight, kg:

- BTR-1400PUHL2 — 275

- BTR-1750PUHL2 — 325

• Mounting position — vertical
• Current type — DC
• Duty cycle — continuous
• Cooling type — forced air
• Protection rating (GOST 14254-2015) — IP00
• Warranty period — 2.5 years