Upkeep of Facilities
The Bureau of Transportation systematically implements the maintenance and management of facilities and equipment such as dams and generators so as to generate hydropower stably.
Water drainage to inspect the Shiromaru Dam
Water is drained every few years to meet the legal inspection requirements for generation equipment such as dams and conduits.
Water release from the gate
Water drainage with the gate open to inspect the Shiromaru Dam
Lake Shiromaru with its floor exposed because of water drainage
Conduit inspection of Tamagawa Power Plant No.3
These scenes show the inspection of the conduit connecting to Tamagawa Power Plant No.3.
Water inlet channel entrance
Water channel after drainage
Water channel inspection scene
Video for approx. 40 seconds
Maintenance of water turbine generators
at Tamagawa Power Plant No.3
For stable generation of hydropower, maintenance and management of facilities and equipment such as dams and generators are systematically implemented.
In addition to daily inspection, the plant undertakes large-scale maintenance and inspection every few years, and also performs repair and modification as required.
Rotor hanging
Rotor hanging
Water wheel hoist
Aerial inspection of power lines
We own power lines that lead for approx.. 6 km from Tamagawa Power Plant No.1 to the Tokyo Electric Power Group's substations.
To deliver stable electricity, maintenance and management are systematically implemented.
These photos show an aerial inspection of power lines to check that there are no problems with the power line equipment.
Power line
Aerial power line inspection
Aerial power line inspection
