High speed train power unit
A high speed train power unit comprising: carbody that comprises: a roof; a floor; a driver's cab at a front end of the carbody; and a technical compartment that comprises: a low voltage zone that comprises an air conditioning unit designed to condition the driver's cab, wherein the air conditioning unit is on the roof, a traction zone that comprises a rheostatic brake on the roof, and a technical zone, wherein the low voltage zone, the traction zone, and the technical zone of the technical compartment are respectively located next to each other along a longitudinal axis of the power unit; at least two bogies mounted under the floor of the carbody; and a main transformer located under the carbody between the bogies.
1. A high speed train power unit comprising:
a carbody that comprises:
a roof;
a floor;
a driver's cab at a front end of the carbody; and
a technical compartment that comprises:
a low voltage zone that comprises an air conditioning unit designed to condition the driver's cab, wherein the air conditioning unit is on the roof;
a traction zone that comprises a rheostatic brake on the roof; and
a technical zone;
wherein the low voltage zone, the traction zone, and the technical zone of the technical compartment are respectively located next to each other along a longitudinal axis of the power unit;
at least two bogies mounted under the floor of the carbody;
a main transformer located under the carbody between the bogies, wherein the bogies are powered by traction motors;
at least one additional winding; and
an electric cabinet that contains the main transformer and the at least one additional winding, wherein the electric cabinet is placed under the carbody between the bogies.
2. The high speed train power unit of claim 1 further comprising power supply cables designed to be connected to electric energy storage batteries arranged in a rail car adjacent to the power unit.
3. The high speed train power unit of claim 1 , wherein the traction zone further comprises at least one traction unit electrically connected to the additional winding, wherein the traction unit and the additional winding form an electrical energy conversion circuit.
4. The high speed train power unit of claim 1 , wherein the traction zone and the technical zone each comprise a ventilation group.
5. The high speed train power unit of claim 1 , wherein the technical compartment comprises a central corridor having a width measured perpendicularly to the longitudinal axis and in a horizontal direction in a configuration of normal use of the power unit, the width having a value between 500 mm and 750 mm.
6. The high speed train power unit of claim 1 , wherein the low voltage zone, the traction zone, and the technical zone each comprise at least one air inlet and an air outlet installed in the roof.
7. The high speed train power unit of claim 1 , wherein the technical zone is at a rear end of the power unit opposite to the front end with the driver's cab and the low voltage zone, wherein the traction zone and the technical zone are respectively located next to each other along the longitudinal axis of the power unit.
8. The high speed train power unit of claim 1 , wherein a pantograph is located on a roof of the technical zone and wherein the technical zone comprises, under a cover on the roof of the technical zone, a high voltage block comprising a circuit breaker and/or a disconnector designed to electrically isolate the pantograph of a traction chain included in the power unit.
9. The high speed train power unit of claim 1 , comprising three removable covers installed on the roof to protect the low voltage zone, the traction zone, and the technical zone, respectively.