Electric railway power-supply system
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsKazuo Tsutsumi, Takahiro Matsumura, Chiyoharu Tonda, Kazuya Nishimura, Fumiya Goto
Life of this patent
Estimating the term…
Abstract
To present an electric railway power-supply system not requiring vast area for installation, excellent in rapid charge-discharge characteristic, and low in manufacturing cost. At a substation 9 for electric railway having a transformer 3 for receiving power from an alternating-current power line 2, a rectifying device 4 connected to the transformer 3, and a feeder line 5 connected to the rectifying device 4, a nickel hydrogen battery 8 is provided as a direct-current supply facility, and the nickel hydrogen battery 8 is directly coupled to the feeder line 5.
Claims27
An electric railway power-supply system comprising:
- a substation for an electric vehicle;
- a feeder line connected to the substation for supplying a direct-current power from the substation;
- and
- a Nickel Metal Hydride battery, as a direct-current electric power facility, coupled directly to the feeder line.
An electric railway power-supply system to be installed in an electric railway substation, the electric railway power-supply system comprising:
- a transformer for receiving power from an alternating-current power circuit,
- a rectifying device connected to the transformer,
- a feeder line connected to the rectifying device, and
- a Nickel Metal Hydride battery, as a direct-current electric power facility, which is coupled directly to the feeder line.
An electric railway power-supply system comprising:
- a feeder line which is coupled to a substation for an electric vehicle and receives a direct-current power from the substation;
- and
- an electric power storage and supply device having a Nickel Metal Hydride battery,
- wherein the Nickel Metal Hydride battery is directly coupled to the feeder line, and the electric power storage and supply device is installed at a different place from the yard of the substation.
An electric railway power-supply system having a substation for electric railway and an electric power supply and storage device,
- wherein the substation comprises:
- a transformer for receiving power from an alternating-current power line,
- a rectifying device connected to the transformer,
- a feeder line connected to the rectifying device, and
- a first Nickel Metal Hydride battery as a direct-current power supply device, which is directly coupled to the feeder line, and
- the electric power supply and storage device includes a second Nickel Metal Hydride battery, and the second Nickel Metal Hydride battery is directly connected to the feeder line, and the electric power storage and supply device is installed in a place different from the yard of the substation.
Dependencies are inferred from the claim text.