November 16th 2012
General update
Lots of activity at the moment. For example
-The Main data Hall 1 aircon installation is advancing well for both the A and B sets (Stulz and Airedale).
-Linking both the A and B plant rooms to the first suite level dedicated power distribution room (PDR-1) is also advancing well.
-The generators Deep Sea auto changeover panels have been tested this week and are now working and tested for various different power failure scenarios. For example;
'HV power feed A' failure (mains power remains for Plant room B but primary generator 1 starts and supplies power to plant room A).
'HV power feed B' failure (mains power remains for Plant room A but primary generator 1 starts and supplies power to plant room B).
'HV power feed A and B' failure (Primary generator 1 starts and supplies power to both plant room A and also plant room B).
All of above but then generator 1 fails to start so secondary Generator 2 starts instead.
Then, as above but generator 1 starts but then fails after initially starting so generator 2 then starts instead. Then, generator 1 starts but then fails so generator 2 starts but then it fails so the two systems try generator 1 again etc etc.
Obviously the chance of both HV supplies failing and also the primary Generator also failing to start is very remote but this testing ensures that the two changeover control panels can cope with any eventuality (including losing communication with each other in which case both generators will start and both plant rooms then independently select the first feeds to reach them). Phew!
NB: All tests were completed successfully on the first live time of test of each of the above scenarios (thanks to Ken who programmed the solution).
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In the right corner we have Airedale free cooling units and in the left corner we have Stulz DX units. Round 1... |
Plant Room A (PR-A) almost complete. |
Dual Deep Sea generator auto changeover control panels. |
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