Braking systems of trains

On the steeper slopes of 0.017 to switch to electric braking drive the automatic brakes first step, then include an electric brake and if necessary, release the automatic brakes. This mode improves the smoothness of braking and eliminates the increase in speed above the set, if for any reason, the electric brake does not come into effect. On the downhill slope is allowed to include smaller electric braking without the use of automatic brakes. At the same time for smoother compression trains for 10-15 stand with brake current is not more than 20% of full value, and then raise it to the desired value. In the empty passenger and freight trains include electric braking without the initial use of automatic brakes, if the rate does not exceed the accepted connection set for the traction motors. The maximum braking force of the electric brake on the local regulations restrict the conditions are squeezing the head of the convoy of empty wagons and carriages malozagruzhennyh bins passenger type. For curves of radius 250-300 m electric braking force applied to the head of the convoy shall not exceed 50 ton, and for freight trains, with all the freight cars loaded to full capacity - 100 n.

With the simultaneous use of automatic brakes and braking of the locomotive to maintain a constant speed electric brake provide in its automatic mode (electric VL80r, VL80T) or manual control. Strengthening or weakening of the automatic brake application is made, taking into account significant changes in speed or profile path.