Kashiwazaki-Kariwa Nuclear Power Plant
F1
Active reactors ( gross ):
The Kashiwazaki - Kariwa nuclear power plant (Japanese柏 崎 刈 羽 原子 力 発 电 所, Kashiwazaki Kariwa genshiryoku hatsudensho ) is a nuclear power plant in Japan. It is located partly in Kashiwazaki Kariwa and partly in in Niigata Prefecture. The first reactor was completed in 1985, six more followed. It is equipped with seven nuclear reactors and a total output of 8,212 MW gross ( 7965 MW net) is the most powerful nuclear power plant in the world. The area of the plant comprises 4.2 km ² and is located on the coast of the Sea of Japan.
Reactors 1 to 3 were completed from 1985 by Toshiba. The fourth and fifth reactor was supplied by Hitachi. The sixth reactor from General Electric and Toshiba. The seventh is from General Electric and Hitachi. The fuel type ATRIUM - 9 with a grid spacing of 9 × 9 are from Siemens. The operator is Tōkyō Denryoku ( TEPCO ).
Incidents
In May 2000, the block had to be switched off for the time being 6, when 300 - fold increase in iodine values were measured in the cooling circuit. 2002 turned out that 16 years falsified reports of the operator TEPCO and inspections had been deported for reasons of cost. All TEPCO nuclear power plants were shut down then. On 16 May 2003 the review was completed and the plant was started up again.
On 16 July 2007 an earthquake of magnitude 6.6 on the Richter scale in the region led to a transformer fire at the nuclear power plant, which could be deleted after about two hours. According to initial information provided by the TEPCO did not happen here in the release of radioactive material, this statement was, however, later revised: exit below the dose limits. According to information currently available larger amounts of water are withdrawn from the reactor, radioactive material was washed out. Also, 800 gallons of oil have leaked. In addition, an unknown number of container fell with radioactively contaminated clothing whose lid thereby partially opened.
The earthquake occurred on the ground accelerations which exceeded the extremes of the official estimates for this location by up to two and half times. "We have not accepted during the planning of the power plant that could occur an earthquake of this strength," said a spokesman for TEPCO three days after the accident. "But after we 've looked at the data on the aftershocks, we have realized that the fault runs directly under the nuclear power plant along. "
Not everyone, however, the surprising happened: In the original official geological surveys, although a fracture edge was several kilometers, but has not been diagnosed under the reactor, but recent reports have shown quite a fault directly below the reactor. A for this reason in 2005 by local residents demanded cancellation of the operating license dismissed by the Supreme Court in Tokyo by reference to official reports back: if it were not an active fault.
Because of earthquake damage from the Niigata Chuetsu - coast earthquake of 2007, the entire system for 21 months has been switched off.
On 5 March 2009, an employee suffered minor injuries in a fire in the face. The fire was extinguished after about 90 minutes. According to the operating reactor safety was not compromised. The cause of the fire is still unclear.
On the morning of November 19 2009, there was again an intermediate case where the smoke exiting the power plant.
On May 6, 2011, the failure of a valve was announced that would be needed in an emergency to pump water into the reactor. At the same time appeared more defects in the system; so, for example, should the devices have been poorly maintained.
Power lines
One of the power lines is part of the three-phase line Kita- Iwaki and as a double line for 1,100 kilovolts ( kV) designed operating voltage, but is currently operated at 500 kV.
Electricity production from individual blocks of the nuclear power plant since commissioning
Data of the reactor units
The Kashiwazaki - Kariwa nuclear power plant has a total of seven blocks: