How must High Speed Trainset moved dead in tow?

How must High Speed Trainset moved dead in tow?

• A. HST must not be coupled together. When a locomotive tows a HST, Pantographs must be down, and 480Volts cables must be connected between locomotive and trainset. Main reservoir and brake pipe must be coupled. The emergency magnet valve must be set to IN, and both power cars must have Pantograph selector set to off.
• B. HST must be coupled together. Pantographs must be up and 480V cables connected.
• C. HST must not be coupled together. When a locomotive tows a HST, pantographs must be down, and 480Volts cables must be connected between locomotive and trainset. Main reservoir and brake pipe must be coupled. The emergency magnet valve must be set to IN, and both power cars must have Pantograph selector set to off.
• D. HST cannot be moved dead in tow.

Answer: (C)

Moving a High Speed Trainset dead in tow relies on letting the locomotive control the braking and power while isolating the trainset’s own traction electricals. The proper setup is to keep the two power cars of the set not coupled together and to have the locomotive at one end. Pantographs must be lowered to avoid contact with overhead wires during the move. 480-volt cables should be connected between the locomotive and the trainset to provide the necessary power/control signals, and the main reservoir and brake pipe must be connected so the locomotive can independently apply and release the trainset’s brakes. The emergency magnet valve should be set to IN to ensure the brake system remains in a safe state for towing, and both power cars’ pantograph selectors should be set to off to prevent any unintended energizing or interlock actions. This combination ensures safe, controlled movement without energizing the trainset or creating electrical conflicts.

Moving a High Speed Trainset dead in tow relies on letting the locomotive control the braking and power while isolating the trainset’s own traction electricals. The proper setup is to keep the two power cars of the set not coupled together and to have the locomotive at one end. Pantographs must be lowered to avoid contact with overhead wires during the move. 480-volt cables should be connected between the locomotive and the trainset to provide the necessary power/control signals, and the main reservoir and brake pipe must be connected so the locomotive can independently apply and release the trainset’s brakes. The emergency magnet valve should be set to IN to ensure the brake system remains in a safe state for towing, and both power cars’ pantograph selectors should be set to off to prevent any unintended energizing or interlock actions. This combination ensures safe, controlled movement without energizing the trainset or creating electrical conflicts.