Blocks of Braking Resistors BTR-1400PUKhL2 and BTR-1750PUKhL2

The BTR-1400PUKhL2 and BTR-1750PUKhL2 braking resistor blocks are designed to dissipate the electrical energy of traction motors in electric braking mode of the diesel locomotive.
The blocks can also be used for loading the diesel generator during adjustment and testing of the locomotive without applying a water rheostat load.
Structurally, the blocks are made in the form of a casing with band-type resistors inside. The housing design ensures the possibility of replacing any band resistor during maintenance.
Applied on TEP70BS locomotives.
Climatic version UHL2 according to GOST 15150-69.

Technical specifications:
Rated resistance of the block’s resistive elements at +20 °C, Ohm (upper row of the block):
- for BTR-1400PUKhL2 – 0.26–0.78
- for BTR-1750PUKhL2 – 0.09–0.86

• Rated resistance of the block’s resistive elements at +20 °C, Ohm (lower row of the block):
  - for BTR-1400PUKhL2 – 0.26–0.78
  - for BTR-1750PUKhL2 – 0.17–0.78
• Maximum current, A, not more than – 820
• Maximum airflow through the blocks, m³/min – 780
• Maximum power, kW:
  - for BTR-1400PUKhL2 – 1400
  - for BTR-1750PUKhL2 – 1750
• Overall dimensions, mm, max – 1135×923×562
• Weight, kg, max:
  - for BTR-1400PUKhL2 – 275
  - for BTR-1750PUKhL2 – 325
• Working position – vertical
• Current type – DC
• Operating mode – continuous
• Cooling type – forced air
• Protection degree according to GOST 14254-2015 – IP00
• Warranty period – 2.5 years