The present invention provides a three-phase power supply and collection device for a maglev train. A cross beam is arranged at the middle part of the bogie of the maglev train, and the lower surface of the cross beam is provided with three sets of longitudinal bearing seats, and three insulating bushes, three collector shoes and three power supply rails corresponding to the longitudinal bearing seats; the two ends of the horizontal part of each insulating bush is a rotating shaft structure, and the vertical part of the insulating bush is a hollow tubular structure; the upper part of each collector shoe is the shoe handle, the lower part is the shoe body, and the bottom of the shoe body is in a concave semicircular shape; the top surface of each power supply rail is in a convex semicircular shape.

The present invention provides a three-phase power supply and collection device for a maglev train. A cross beam is arranged at the middle part of the bogie of the maglev train, and the lower surface of the cross beam is provided with three sets of longitudinal bearing seats, and three insulating bushes, three collector shoes and three power supply rails corresponding to the longitudinal bearing seats; the two ends of the horizontal part of each insulating bush is a rotating shaft structure, and the vertical part of the insulating bush is a hollow tubular structure; the upper part of each collector shoe is the shoe handle, the lower part is the shoe body, and the bottom of the shoe body is in a concave semicircular shape; the top surface of each power supply rail is in a convex semicircular shape.

Provided is a collected current monitoring device. A transformer current acquisition unit acquires a current value I.sub.p of a current flowing through a part of a plurality of transformers. A total collected current calculation unit calculates a current value I.sub.all of a collected current supplied by a plurality of current collectors from the current value I.sub.p by using a following Equation (1): I.sub.all=I.sub.p(M.sub.all/M.sub.p). A collected current acquisition unit acquires a current value I.sub.X of a collected current supplied by the current collector(s) other than one current collector. The collected current calculation unit calculates a current value I.sub.Y of a collected current supplied by the one current collector by subtracting the current value I.sub.X from the current value I.sub.all.

Provided is a collected current monitoring device. A transformer current acquisition unit acquires a current value I.sub.p of a current flowing through a part of a plurality of transformers. A total collected current calculation unit calculates a current value I.sub.all of a collected current supplied by a plurality of current collectors from the current value I.sub.p by using a following Equation (1): I.sub.all=I.sub.p(M.sub.all/M.sub.p). A collected current acquisition unit acquires a current value I.sub.X of a collected current supplied by the current collector(s) other than one current collector. The collected current calculation unit calculates a current value I.sub.Y of a collected current supplied by the one current collector by subtracting the current value I.sub.X from the current value I.sub.all.

A dual mode current collector includes a mounting frame having a pivot shaft extending along a pivot axis. A first current collector includes a housing pivotally connected to the pivot shaft, a shoe arm connected to the housing, and a shoe attached to the shoe arm. The shoe has a conductor surface configured to engage a rail. A second current collector includes a housing pivotally connected to the pivot shaft, a shoe arm connected to the housing, and a shoe attached to the shoe arm. The shoe has a conductor surface configured to engage a rail. A first actuator connected to the mounting frame and the first current collector is configured to rotate the first current collector about the pivot axis. A second actuator connected to the mounting frame and the second current collector is configured to rotate the second current collector about the pivot axis.

A dual mode current collector includes a mounting frame having a pivot shaft extending along a pivot axis. A first current collector includes a housing pivotally connected to the pivot shaft, a shoe arm connected to the housing, and a shoe attached to the shoe arm. The shoe has a conductor surface configured to engage a rail. A second current collector includes a housing pivotally connected to the pivot shaft, a shoe arm connected to the housing, and a shoe attached to the shoe arm. The shoe has a conductor surface configured to engage a rail. A first actuator connected to the mounting frame and the first current collector is configured to rotate the first current collector about the pivot axis. A second actuator connected to the mounting frame and the second current collector is configured to rotate the second current collector about the pivot axis.

Electrified roadway systems include a roadway, and vehicles configured to operate on the roadway. The roadway has a base, and two electrically-conductive rails mounted on the base. One of the rails is electrically connected to a source of electric power, and the other rail is electrically connected to an electrical ground. The vehicles include non-electrically-conductive tires, and an electric motor mechanically connected to, and configured to rotate at least one of the tires to propel the vehicle along the roadway. The vehicles draw electric power from the roadway via two electrical pickups. The electrical pickups are configured to move between a deployed position at which the pickups contact the respective rails, and a retracted position at which the pickups are out of contact with the rails.

Electrified roadway systems include a roadway, and vehicles configured to operate on the roadway. The roadway has a base, and two electrically-conductive rails mounted on the base. One of the rails is electrically connected to a source of electric power, and the other rail is electrically connected to an electrical ground. The vehicles include non-electrically-conductive tires, and an electric motor mechanically connected to, and configured to rotate at least one of the tires to propel the vehicle along the roadway. The vehicles draw electric power from the roadway via two electrical pickups. The electrical pickups are configured to move between a deployed position at which the pickups contact the respective rails, and a retracted position at which the pickups are out of contact with the rails.

A direct current (DC) traction power electric arc suppressing device is provided. The device comprises a parallel resistor-capacitor (RC) circuit electrically connected between a main traction power rail and an associated power rail incline end section with a narrow insulating joint installed between the main traction power rail and the associated power rail end section incline.

A direct current (DC) traction power electric arc suppressing device is provided. The device comprises a parallel resistor-capacitor (RC) circuit electrically connected between a main traction power rail and an associated power rail incline end section with a narrow insulating joint installed between the main traction power rail and the associated power rail end section incline.