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Past accident, trouble

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 About accident, trouble that occurred in Genkai Nuclear Power Plant, it is to be contacted the prefecture and all municipalities based on safe agreements.

 When we receive such a contact, in the prefecture, we decide to publish the content immediately each time. It was street of the next table, and tsukiyo of accident, trouble that occurred so far did not have all effect to environment.

Past accident, trouble (thing corresponding to safe agreement Article 6)

The outbreak date Nuclear reactor The situation

 26.10.28

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Outbreak We open with the other window(PDF: 172.2 kilobytes) of fire in the first radiochemistry room in 3.4 machine assistance building

 24.6.15

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Cable damage by a fire We open with the other window(PDF: 328.6 kilobytes) for lighting in sloppy solid fusion processing building

23.12.16 3, Genkai Of pump main shaft not to assign C to during periodical inspection discover breaking With new window(195KB, PDF file)
23.10.4 4, Genkai The rating output is operating, automatic shutoff With new window(101KB, PDF file) of nuclear reactor accompanied with outbreak of vacuum degree abnormality of condenser
20.6.20 4, Genkai The rating heat output is operating and, with automatic shutoff of generator, automatically stops nuclear reactor With new window(817KB, PDF file)
19.1.16 2, Genkai During periodical inspection, we discover crazing in the surplus extraction plumbing With new window(464KB, PDF file)
18.11.12 4, Genkai Adjustment is operating, and nuclear reactor manual operation stops by leak from pressurizer escape valve With new window(80KB, PDF file)
16.9.16 4, Genkai The rating output is operating, and nuclear reactor manual operation stops for quantity of hydrogen gas supply increase for generator cooling With new window(143KB, PDF file)
12.3.31 2, Genkai During periodical inspection, we detect harm of 79 steam generator narrow tubes
11.7.18 1, Genkai The rating output is operating and it outputs for the condenser narrow tube damage and decreases (50%)
11.1.29 1, Genkai The rating output is operating, and nuclear reactor manual operation stops for primary coolant pump seal return flow rate gradual increase
10.11.30 2, Genkai During periodical inspection, we detect harm of 68 steam generator narrow tubes
9.9.1 2, Genkai During periodical inspection, we detect harm of 39 steam generator heat transfer pipes
9.3.15 1, Genkai The rating output is operating and it outputs for the condenser narrow tube damage and decreases (50%)
5.9.24 3, Genkai During trial run, nuclear reactor manual operation stops for upswing in low-pressure turbine axis vibration
5.4.6 1, Genkai During periodical inspection, we detect harm of 75 steam generator narrow tubes
4.1.10 1, Genkai During periodical inspection, we detect harm of 163 steam generator narrow tubes
2.9.25 1, Genkai During periodical inspection, we detect harm of 294 steam generator narrow tubes
1.10.20 2, Genkai After carrying out trial run of emergency diesel generator during periodical inspection, overcurrent relay works, and the generator concerned automatically stops (some damages by a fire of stator winding)
H1.4.27 1, Genkai During periodical inspection, we detect harm of 410 steam generator narrow tubes
S63.6.6 1, Genkai The rating output is operating, and it is stopped nuclear reactor by primary coolant leak by residual heat pro-removal plumbing damage
62.12.23 1, Genkai During periodical inspection, we detect harm of 447 steam generator narrow tubes
62.2.7 2, Genkai During periodical inspection, we discover falling off of fuel aggregate leaf spring safety catch tool
61.10.10 - 11 1, Genkai During periodical inspection of residual heat removal pump main shaft discover breaking
61.9.24 1, Genkai During periodical inspection, we detect harm of 466 steam generator narrow tubes
60.5.23 1, Genkai During periodical inspection, we detect harm of 288 steam generator narrow tubes
60.3.27 1, Genkai The rating output is operating and automatically stops for power supply bus short circuit in place
59.3.8 1, Genkai During periodical inspection, we detect harm of 120 steam generator narrow tubes
58.9.2 1, Genkai We automatically stop by the falling of a thunderbolt and discover seat leak of pressurizer relief valve during check
57.12.22 1, Genkai During periodical inspection, we detect harm of 176 steam generator narrow tubes
57.4.10 2, Genkai After the generation resumption during periodical inspection, we automatically stop for transformer protection relay movement in place
56.8.31 1, Genkai During periodical inspection, we discover *kizu of 233 steam generator narrow tubes
56.3.13 2, Genkai During trial run, nuclear reactor stops because of disorder of valve divergence adjuster of the second side water supply control valve (automatic shutoff)
54.12.3 1, Genkai Nuclear reactor stops for seat leak of pressurizer relief valve by minute alien substance mixture
54.3.21 1, Genkai During periodical inspection, we detect harm of control rod cluster guide tube bend pin
51.3.9 1, Genkai A very small amount of radioactivity release for chemical volume control system vent valve erroneous operation
50.6.10 1, Genkai We are damaged by steel tape measure left in steam generator. Nuclear reactor stops for Surveys

 

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Copyright© 2016 Saga Prefecture.All Rights Reserved.

Saga prefectural government office (corporation number 1000020410004)

〒840-8570
1-1-59, Jonai, Saga-shi
Tel: 0952-24-2111 (main)
Copyright© 2016 Saga Prefecture.All Rights Reserved.