OP
Knobhead
After the episode I mentioned above there was a major rethink.
The data centre was split between two sites. Each was fed via two auto change over LV supplies with UPS. The two LV feeds were from different sides of the main MV boards. We had two intake substations each with a pair of 20MVA 33/11KV transformers.
For the two centres to fail entirely, all four intake transformers would have to fail. About the only way that could happen would be the 132KV grid failing totally.
The data centre was split between two sites. Each was fed via two auto change over LV supplies with UPS. The two LV feeds were from different sides of the main MV boards. We had two intake substations each with a pair of 20MVA 33/11KV transformers.
For the two centres to fail entirely, all four intake transformers would have to fail. About the only way that could happen would be the 132KV grid failing totally.
