Genesis Ark

The Genesis Ark was a Time Lord prison ship built on their home Planet of Gallifrey, it was designed to contain all Daleks captured by the Time Lords. The Genesis Ark appeared in in the Season 28 finale "Doomsday".

Activation
The only way for the Genesis Ark to be activated is for it to be touched by a being that has time travelled. A Time Traveller carries a sort of background radation that normal beings do not.