H - Electricity – 01 – H
Patent
H - Electricity
01
H
337/100, 306/331
H01H 33/02 (2006.01) H01H 33/77 (2006.01)
Patent
CA 1332959
Improved switchblade-type, air dielectric switchgear apparatus is provided which utilizes a minimum of supporting insulators and incorporates readily field-replaceable bushing assemblies so that the switchgear apparatus may be serviced in the field using only conventional tools. In preferred forms, the switchgear apparatus includes internal switch assemblies making use of substantially ver- tically oriented switchblades mounted for pivotal movement about an elevated, generally horizontal axis located above the corresponding stationary contacts. The replaceable bushing assemblies are advantageously mounted at a level for interconnec- tion with the upper ends of associated switchblades, and the assemblies include a conical outermost connection end adapted to receive a line connecting elbow, together with an elongated, inwardly extend- ing, electrically conductive intermediate portion carrying an innermost terminal. The inner terminal is designed for frictionally engaging the upper end of an associated switchblade, and for this purpose includes a pair of depending, spring-loaded contact plates. If a given bushing assembly requires re- placement, it is only necessary to externally dis- connect the assembly from the switch housing wall, followed by manual removal of the defective assem- bly. An identical replacement assembly is then inserted through the tank wall and the assembly terminal is initially positioned relative to the switchblade, this operation being facilitated by visual inspection through a window below the bushing assemblies. The replacement bushing is then attached using external connection hardware, this operation serving to properly and finally position the terminal relative to the switchblade.
578405
Roberts Gerald B.
West Edward L.
Gowling Lafleur Henderson Llp
Hubbell Incorporated
LandOfFree
Replaceable bushing and contact assembly for blade type air... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Replaceable bushing and contact assembly for blade type air..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Replaceable bushing and contact assembly for blade type air... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1295315