A power converter includes a chassis having attached thereto a holding fixture for mounting the chassis to a mounting portion in a suspended manner. The holding fixture includes a first member attached to a first surface of the chassis which faces the mounting portion, and a second member attached to the first member and a second surface of the chassis that adjoins the first surface.

A monitor vehicle for a rail system includes a wheeled trolley, an overhead vehicle body, at least one supporting structure, and at least one first sensor. The wheeled trolley is operable to move over one or more rails of the rail system. The supporting structure connects the wheeled trolley and overhead vehicle body. The first sensor is on the wheeled trolley and configured to detect at least one first parameter of the one or more rails of the rail system.

A monitor vehicle for a rail system includes a wheeled trolley, an overhead vehicle body, at least one supporting structure, and at least one first sensor. The wheeled trolley is operable to move over one or more rails of the rail system. The supporting structure connects the wheeled trolley and overhead vehicle body. The first sensor is on the wheeled trolley and configured to detect at least one first parameter of the one or more rails of the rail system.

A circuit system for a railroad vehicle according to an embodiment includes a power conversion unit, a first converter, a second converter, a power storage unit, and a control unit. The power conversion unit converts power supplied from an overhead wire into power for driving a motor for running mounted on a railroad vehicle. The first converter converts power supplied from the overhead wire into DC power. The second converter converts power output from the first converter into power for driving a load mounted on the railroad vehicle. The power storage unit is electrically connected to an input side of the second converter. The control unit inputs regenerative power output from the power conversion unit to the first converter and inputs power output from the first converter to the power storage unit in a case where it is determined that the railroad vehicle is being regenerated.

A circuit system for a railroad vehicle according to an embodiment includes a power conversion unit, a first converter, a second converter, a power storage unit, and a control unit. The power conversion unit converts power supplied from an overhead wire into power for driving a motor for running mounted on a railroad vehicle. The first converter converts power supplied from the overhead wire into DC power. The second converter converts power output from the first converter into power for driving a load mounted on the railroad vehicle. The power storage unit is electrically connected to an input side of the second converter. The control unit inputs regenerative power output from the power conversion unit to the first converter and inputs power output from the first converter to the power storage unit in a case where it is determined that the railroad vehicle is being regenerated.

Effectively control the temperature of a control unit of a railway equipment inspecting and measuring apparatus, and install the control unit of the railway equipment inspecting and measuring on the roof of the passenger car. The first space is formed between the control unit and the heat insulating case. The second space is formed between the heat insulating case and the cover. In the first space, heat is conducted between the air in the first space and the heat exchange element by the first heat conducting member, and the first fan causes circulation of the air in the first space. In the second space, heat is conducted between the air in the second space and the heat exchange element by the second heat conducting member, and the air inside the second space is diffused by blowing the air from a suction port into the second space with the second fan.

An electricity collector device (100) for connecting a vehicle (200) to electrical supply rails (308, 309) in a conduit (304) is disclosed. The device (100) comprises a collector system (400), a wheeled enclosure (101), a vehicle connection (150) and a power cable (104). The collector system (400) comprises a retractable collector arm (401, 402) adapted to be inserted into a conduit (304) containing an electrical supply rail (309, 309), and to make electrical contact with the supply rail (308, 309). The wheeled enclosure (101) houses the collector system (400), and comprises flanged wheels (102, 103) adapted to be engageable with the conduit (304). The vehicle connection (150) is for attaching the device to a vehicle (200), allowing the enclosure (101) to move with least two degrees of freedom with respect to the vehicle (200). The power cable (104) is for connecting the collector system (400) to a vehicle (200).

An electricity collector device (100) for connecting a vehicle (200) to electrical supply rails (308, 309) in a conduit (304) is disclosed. The device (100) comprises a collector system (400), a wheeled enclosure (101), a vehicle connection (150) and a power cable (104). The collector system (400) comprises a retractable collector arm (401, 402) adapted to be inserted into a conduit (304) containing an electrical supply rail (309, 309), and to make electrical contact with the supply rail (308, 309). The wheeled enclosure (101) houses the collector system (400), and comprises flanged wheels (102, 103) adapted to be engageable with the conduit (304). The vehicle connection (150) is for attaching the device to a vehicle (200), allowing the enclosure (101) to move with least two degrees of freedom with respect to the vehicle (200). The power cable (104) is for connecting the collector system (400) to a vehicle (200).

A contact wire clamp includes a first clamp body and a second clamp body. The first clamp body and second clamp body each define a contact wire channel and a safety rope channel. The safety rope channel includes a plurality of ridges, each of the plurality of ridges spaced apart from neighboring ridges to define a plurality of troughs. The contact wire clamp further includes a mechanical fastener connecting the first clamp body and the second clamp body together. The safety rope channels of the connected first clamp body and second clamp body face each other and together form a safety rope passage.

A contact wire clamp includes a first clamp body and a second clamp body. The first clamp body and second clamp body each define a contact wire channel and a safety rope channel. The safety rope channel includes a plurality of ridges, each of the plurality of ridges spaced apart from neighboring ridges to define a plurality of troughs. The contact wire clamp further includes a mechanical fastener connecting the first clamp body and the second clamp body together. The safety rope channels of the connected first clamp body and second clamp body face each other and together form a safety rope passage.