Items Subject to Procurement
Tohoku Electric Power Company Inc. invites manufacturers of items listed below, who can provide the items at competitive prices. Submissions by all overseas manufactures will also be gladly accepted via Japanese sales agencies.
Items Subject to Procurement
| facilities | Items | Details | Specification |
|---|---|---|---|
| Hydroelectric power | Vacuum circuit breaker | This uses extinction performance of high vacuum as arc quenching medium. | Rated voltage: 72 kV Rated current: 800 A Rated breaking current: 20kV Codes and Standards: JEC-2300-2010, JEC-2390-2013 |
| Vacuum circuit breaker | Same as above | Rated voltage: 7.2 kV Rated current: 600 A Rated breaking current: 12.5 kA Isolated, transmission lines Cords and Standards: JEC-2300-2010, JEC-2390-2013 |
|
| Cubicle gas-insulated switchgear | This contains components, including SF6 gas-insulated circuit breaker, disconnector, grounding switch, and instrument transformer, in one box (cubicle). | Rated voltage: 72 kV Used for distribution/substation Cords and standards: JEC-2350-2005, JEC-2390-2013 |
|
| Power condenser | This increases system voltage with power factor improvement. | Rated voltage: 66kV Rated capacity: 10 MVA Cords and standards: JIS C 4902-1-1~3 (2010) |