A railway vehicle is provided with a pantograph movable under the action of a moving device between a raised position, in which it is able to cooperate in contact, in use, with a catenary conductor cable for drawing electrical energy, and a lowered position, in which it is lower than the height where, in use, such catenary is provided; the vehicle is provided with a battery pack and a control system for controlling the moving device and therefore lowering/raising the pantograph; the control system has a microprocessor control unit configured to control the moving device in response to signals containing information indicative of the actual position of the vehicle, and/or indicative of the presence or absence of the conductor cable in the vicinity of the vehicle.

A railway vehicle is provided with a pantograph movable under the action of a moving device between a raised position, in which it is able to cooperate in contact, in use, with a catenary conductor cable for drawing electrical energy, and a lowered position, in which it is lower than the height where, in use, such catenary is provided; the vehicle is provided with a battery pack and a control system for controlling the moving device and therefore lowering/raising the pantograph; the control system has a microprocessor control unit configured to control the moving device in response to signals containing information indicative of the actual position of the vehicle, and/or indicative of the presence or absence of the conductor cable in the vicinity of the vehicle.

Provided herein is an energy delivery system for transporting electrical energy from an electrical energy generation facility to an electrical energy consumption facility via rail. The energy delivery system can comprise a train comprising at least one rail car loaded with at least one battery system. The at least one battery system can comprise an energy transfer interface for wirelessly receiving energy from the energy generation facility when the train is located at the energy generation facility for charging batteries of the battery system and for wirelessly transferring energy stored by the battery system to the energy consumption facility when the train is located at the energy consumption facility.

A current collector for electrically supplying an electrical load which is movable along a conductor line. The current collector has a fastening element and at least one sliding contact with an elongate sliding contact surface, which extends in a longitudinal direction, for sliding contact with an electrically conducting line profile, which extends in the longitudinal direction, of the conductor line. The sliding contact is articulated on the fastening element at spaced apart fastening regions, so as to be movable in a feeding plane extending parallel to the longitudinal direction by means of two articulated lever arrangements. A resetting device acting on the articulated lever arrangements and on the fastening element is provided which, when the sliding contact is deflected from an inoperative position, in which the sliding contact surface preferably extends substantially parallel to the longitudinal direction, moves the sliding contact back into the inoperative position.

A vehicle system includes an instructing portion that issues open/close instructions for a charging disconnector, a discharging disconnector, and a pair of contactors. A diagnosis start determination portion determines a diagnosis start timing before entering a trolleyless section. A remaining battery capacity checks whether a battery unit has a battery capacity necessary in a trolleyless section travel. A relay operation check portion checks operability of a charging disconnector, the discharging disconnector, and the pair of contactors based on certain open/close states of a plurality of relays depending on the open/close instructions. An abnormality determination portion determines trolleyless section travel is not allowed when the relay operation check portion is incapable of checking operability or necessary remaining battery capacity, the remaining battery capacity check portion, the relay operation check portion, and the abnormality determination portion being operated when the diagnosis start determination portion determines that it is diagnosis start timing.

The present invention relates to a method for switching power supply path of at least one electrical machine, said electrical machine being arranged to be selectively supplied power by a first power supply path and a second power supply path, respectively, by alternately opening and closing said power supply paths, said first and second power supply paths being arranged to connect a power supply source to a first connection terminal means of said electrical machine. The method includes, when switching from said first power supply path to said second power supply path: opening said first power supply path; by means of said electrical machine, controlling a terminal voltage of said first connection terminal means to substantially a power supply voltage of said second power supply path; and closing said second power supply path.

The present invention relates to a method for switching power supply path of at least one electrical machine, said electrical machine being arranged to be selectively supplied power by a first power supply path and a second power supply path, respectively, by alternately opening and closing said power supply paths, said first and second power supply paths being arranged to connect a power supply source to a first connection terminal means of said electrical machine. The method includes, when switching from said first power supply path to said second power supply path: opening said first power supply path; by means of said electrical machine, controlling a terminal voltage of said first connection terminal means to substantially a power supply voltage of said second power supply path; and closing said second power supply path.

A method and a system for detecting a pantograph-catenary electric arc based on a train power supply system are provided. The method includes: boosting, by a booster transformer, a voltage of alternating current transmitted via an electric network, to generate high voltage electrical energy, where a high voltage and a great current are generated in a gap between a catenary wire and a pantograph in a discharging circuit with the high voltage electrical energy; and collecting an electric arc generated in the gap between the catenary wire and the pantograph in a case of the high voltage and the great current.

A system for testing a traction block, such as a railway traction block, includes two zones that are physically separated from one another, an operational zone located in a container and divided into at least two parts. One part is a command part accessible by an operator during testing, and the other part is a high-voltage part inaccessible during testing. The system also includes a test zone located outside the container, and configured to receive the traction block to be tested. The test zone is able to be supplied with electricity during the test by the operational zone using dedicated connections.

A high voltage circuit breaker comprises a vacuum interrupter module, a drive module, and an actuator. The vacuum interrupter module has a vacuum interrupter housing and a pair of electrical contacts disposed in the vacuum interrupter housing. At least one of the pair of electrical contacts is movable relative to the other of the pair of electrical contacts to engage and disengage the electrical contacts from one another for switching a high voltage on and off. The drive module has a drive module housing and a drive member coupled with the at least one movable electrical contact. A central part of the drive member is disposed in the drive module housing and insulated from an ambient air. The actuator is coupled to the drive member and moves the pair of electrical contacts relative to one another.