Following up this article..[Reactor4]Coolant system is provisionally back on to be fully recovered tomorrow
SFP4 is not fully recovered yet.
On 7/2/2012, Tepco announced like this below,
Upon investigation, it was confirmed that a system trip occurred as a result of UPS
failure causing the loss of power supply to the monitoring instrument. The cooling
system was recovered by supplying power to the monitoring instrument through a
bypass. After replacing the failed UPS, power supply through UPS will be recovered.
UPS is not replaced to be a new one yet. Tepco stated they are planning to obtain the new UPS during this week.
Also, they still haven’t sorted out what caused the UPS trouble.
↓ 2:33 ~Iori Mochizuki