FIELD: railway transport.
SUBSTANCE: device for determining the main resistance to movement of a freight car contains a brake activation device (6), connected to a battery, including brake hoses, an electromagnetic valve for releasing air from the brake line with a radio-controlled relay and a backup time relay. To change the time, distance travelled and speed of movement, a navigation receiver (4) is used, mounted on the car under test (1), connected to a computer (5).
EFFECT: invention improves the accuracy of measurements when determining the main resistance to movement of freight cars in a train.
1 cl, 6 dwg
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