Vacuum capacitor switch with pre-insertion contact

A vacuum capacitor switch with pre-insertion contact, comprising:

• a vacuum enclosure;
• a first contact system includes a moving contact and a stationary contact, said stationary contact is retained inside said vacuum enclosure at substantially one end thereof;
• and
• a second contact system includes a moving contact rod, a floating contact rod and a biasing device, said floating contact rod is retained at the other end of said vacuum enclosure, said biasing device is retained on the other end of said vacuum enclosure, substantially one end of said floating contact rod is retained by said biasing device, the other end of said floating contact rod is biased toward the one end of said vacuum enclosure, said moving contact is retained on said moving contact rod, a distance that said floating contact rod extends from said biasing device is adjustable, said biasing device includes a bracket and a threaded adjuster, said bracket is secured to said vacuum enclosure, said threaded adjuster includes a bushing, a compression spring, a first nut and a second nut, wherein said bushing is retained in said bracket, said compression spring is retained on said bushing, said first nut is threaded on to said floating contact rod, said floating contact rod is inserted through said bushing, said second nut is threaded on to said floating contact rod, said floating contact rod is threadably engaged with said threaded adjuster, said floating contact rod is axially adjustable relative to said bracket, wherein a load is electrically connected between said stationary contact and said floating rod.

A vacuum capacitor switch with pre-insertion contact, comprising:

• a vacuum enclosure;
• a first contact system includes a moving contact and a stationary contact structure, said stationary contact structure includes a stationary contact support and a stationary contact, said stationary contact support includes a substantial bowl shaped cross section with angled side walls, said stationary contact extends from a bottom of said stationary contact support, said stationary contact structure is retained inside said vacuum enclosure at substantially at one end thereof;
• and
• a second contact system includes a moving contact rod, a floating contact rod and a biasing device, said floating contact rod is retained at the other end of said vacuum enclosure, said biasing device is retained on the other end of said vacuum enclosure, substantially one end of said floating contact rod is retained by said biasing device, the other end of said floating contact rod is biased toward the one end of said vacuum enclosure, said moving contact is retained on said moving contact rod, said biasing device includes a bracket and a threaded adjuster, said bracket is secured to said vacuum enclosure, said threaded adjuster includes a bushing, a compression spring, a first nut and a second nut, wherein said bushing is retained in said bracket, said compression spring is retained on said bushing, said first nut is threaded on to said floating contact rod, said floating contact rod is inserted through said bushing, said second nut is threaded on to said floating contact rod, said floating contact rod is threadably engaged with said threaded adjuster, said floating contact rod is axially adjustable relative to said bracket, wherein a load is electrically connected between said stationary contact and said floating rod.