Still cant get past the plot hole of having the power switch in a bunker on the other side of the raptor paddock (as for raptors, recent research suggests they were feathered and far smaller than their Hollywood cousins) thus meaning humans had to go through the paddock to switch the power back on. I suppose putting the power bunker underneath the cafeteria for instance would have been stupid in the extreme so I'll shut up.
Plot hole solved : The Raptors didn't have a paddock as such, like the T-Rex did - they were in a cage in a hole in the ground. Dennis Nedry kept the Raptor fences on when he engineered his escape, but the complete turn-off switched them off as well. The Raptors escaped their cage and were out in the open when they hunted Muldoon and Ellie. The power switch in the bunker was just on the other side of the compound - i.e. the Visitor Centre Campus. Which makes sense really - have all your important electronic equipment away from the main building in case of fire etc.