yes
At Chernobyl there was a steam explosion which blew off the top of the reactor followed by a fire due to the graphite moderator burning in air, and a huge amount of radioactive material was discharged, including fission products from the fuel. I'm not sure which fast reactor you are referring to, but certainly the incident did not involve massive catastrophic failure of the reactor vessel, or it would have become a world incident as Chernobyl did.
Dounreay PFR (Prototype Fast Reactor)
You may mean FBR - this stands for Fast Breeder Reactor
British Columbia (BC) residents would be safe if Reactor 3 has a meltdown.
People in North America would be safe if a Reactor 3 meltdown at Fukushima.
Kalpakkam has both Thermal reactor (Madras Atomic Power Station) and Fast Breeder Reactor -FBTR and PFBR (Under construction). In MAPS (thermal reactor) it is Heavy Water (D2O) Which acts as a coolant as well as moderator, where as in Fast Breeder Test Reactor (FBTR) and Prototype Fast Breeder Reactor (PFBR) Sodium (Na) is used as coolant. Since there should not any moderators for fast reactors D2O will not be used as coolant in fast reactors.
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the reactor over heated and the fail safe shut down failed
Yes, they are fast nuclear reactors
See the India section of www.world-nuclear.org
Moderator is not used in case of fast breeder reactor because there is no need to slow down neutron energy. Nuclear fission takes place at high energy of neutrons.
They are 'mothballing' it. It is being decommissioned and made safe.