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The low voltage control panel and circuit breakers which enabled any of the alternators to be put on to either the technical or utility bus bars.

This was important when a mission was on so all units were up and running but were connected to the appropriate bus bars.

During down time the whole station could run on one 6 cylinder 250 kVA unit at about half load, (125 kVA) for the techinical bus and one 8 cylinder 500 kVA, again at around half load to run the rest of the station such as the air conditioning lights and power.

With thanks to Ian Hahn for the notes.