Gas insulation switchgear

Abstract

A gas insulation switchgear having a lowered overall height is provided. The height of the gas insulation switchgear can be lowered by constructing the gas insulation switchgear so as to comprise a breaker unit 13 horizontally arranged in the lower side and containing a conductor for one phase in a container; an actuator 41 arranged in the axial direction of the breaker unit 13; and a main bus isolator unit 4 horizontally arranged in both sides of a bus side connecting conductor 46 through the bus side connecting conductor 46 arranged vertically and connected to the breaker unit 13.

What is claimed is:  
     
         1 . A gas insulation switchgear comprising: 
 a breaker unit horizontally arranged and containing a conductor for one phase in a container;    a bus side connecting conductor vertically arranged and connected to said breaker;    three-phase single-unit type main bus units arranged in both sides of said bus side connecting conductor and in an axial direction of said breaker unit; and    a line side connecting conductor connected to said breaker unit.    
     
     
         2 . A gas insulation switchgear for bus communication line comprising: 
 a breaker unit horizontally arranged and containing a conductor for one phase in a container;    a bus side connecting conductor vertically arranged and connected to said breaker;    a three-phase single-unit type main bus A connected to said bus side connecting conductor;    a line side connecting conductor connected to said breaker unit; and    a three-phase single-unit type main bus B connected to said line side connecting conductor, wherein a connecting port to the main bus A of said bus side connecting conductor and a connecting port to the main bus B of said line side connecting conductor are arranged in the same direction.    
     
     
         3 . A gas insulation switchgear comprising: 
 a breaker unit having a bus section line and a bus communication line horizontally arranged, containing a conductor for one phase in a container;    a bus side connecting conductor vertically arranged and connected to said breaker;    three-phase single-unit type main bus units arranged in both sides of said bus side connecting conductor and in an axial direction of said breaker unit; and    a line side connecting conductor connected to said breaker units.    
     
     
         4 . In a substation comprising a transmission line, a bus communication line, a bus section line and a transformer line, a gas insulation switchgear having a voltage transformer unit in said bus section line.  
     
     
         5 . A gas insulation switchgear comprising: 
 a breaker unit having a bus section line horizontally arranged, containing a conductor for one phase in a container;    a bus side connecting conductor vertically arranged and connected to said breaker;    three-phase single-unit type main bus units arranged in both sides of said bus side connecting conductor and in an axial direction of said breaker unit;    a line side connecting conductor connected to said breaker units; and    a voltage transformer connected to an end portion of said main bus.    
     
     
         6 . A gas insulation switchgear according to  claim 1 , wherein said line side conductor has an isolator unit, and said breaker unit and said isolator unit are mounted on a base, and a portion between the breaker unit and the bus side connecting conductor and a portion between the breaker unit and the isolator unit are so constructed as to be separable.  
     
     
         7 . A gas insulation switchgear according to  claim 6 , wherein a second base is arranged below said base.  
     
     
         8 . A method of installing a gas insulation switchgear, the gas insulation switchgear comprising a breaker unit horizontally arranged and containing a conductor for one phase in a container; a bus side connecting conductor vertically arranged and connected to said breaker; three-phase single-unit type main bus units arranged in both sides of said bus side connecting conductor and in an axial direction of said breaker unit; and a line side connecting conductor connected to said breaker unit, said breaker unit and said isolator unit being mounted on a base, a portion between the breaker unit and the bus side connecting conductor and a portion between the breaker unit and the line side connecting conductor being so constructed as to be separable, wherein 
 said gas insulation switchgear is transported as a unit when said gas insulation switchgear is transported, and said gas insulation switchgear is mounted on a second base.    
     
     
         9 . A method of installing a gas insulation switchgear according to  claim 8 , wherein when said breaker unit is disassembled, said breaker unit is dismounted by supporting said main bus unit with the other support column, and detaching the portion between the breaker unit and the bus side connecting conductor and the portion between the breaker unit and the line side connecting conductor after removing said second base.  
     
     
         10 . A gas insulation switchgear comprising: 
 a breaker unit horizontally arranged;    a bus side connecting conductor vertically arranged and connected to said breaker;    a current transformer unit arranged below said bus side connecting conductor;    three-phase single-unit type main bus units arranged in both sides of said bus side connecting conductor and in an axial direction of said breaker unit; and    a line side connecting conductor connected to said breaker unit.    
     
     
         11 . A gas insulation switchgear according to any one of  claim 1  and  claim 2 , wherein a current transformer unit is connected to said breaker unit, and said breaker unit, said bus side connecting conductor and said current transformer are so constructed as to have a common gas section.  
     
     
         12 . A gas insulation switchgear according to any one of  claim 1  and  claim 2 , wherein a current transformer unit is connected to said breaker unit, and said current transformer is so constructed to have a tank different from a tank of the breaker unit.  
     
     
         13 . A gas insulation switchgear comprising: 
 a breaker unit horizontally arranged;    a bus side connecting conductor vertically arranged and connected to said breaker;    three-phase single-unit type main bus units arranged in both sides of said bus side connecting conductor and in an axial direction of said breaker unit; and    a line side connecting conductor connected to said breaker unit, wherein    said line side connecting conductor is connected to a line side component through a current transformer arranged vertically and an extendable joint.    
     
     
         14 . A gas insulation switchgear according to  claim 13 , wherein said main conductors for three phases are horizontally or vertically arranged in a row.  
     
     
         15 . A gas insulation switchgear comprising: 
 a breaker unit horizontally arranged;    a bus side connecting conductor vertically arranged and connected to said breaker;    three-phase single-unit type main bus units arranged in both sides of said bus side connecting conductor and in an axial direction of said breaker unit; and    a line side connecting conductor connected to said breaker unit, wherein    an insulation spacer is horizontally arranged between said line side connecting conductor and said breaker unit, and a grounding device is arranged in said main bus unit.    
     
     
         16 . A gas insulation switchgear comprising: 
 a breaker unit horizontally arranged;    a bus side connecting conductor vertically arranged and connected to said breaker;    three-phase single-unit type main bus units arranged in both sides of said bus side connecting conductor and in an axial direction of said breaker unit; and    a line side connecting conductor connected to said breaker unit, wherein    said line side connecting conductor is connected to a breaker side grounding device, an isolator and a line side isolator which are contained in a container vertically arranged.