Gas insulated switchgear with bus-section-unit circuit breaker and disconnect switches connected to external lead-out means connectable to other gas insulated switchgear

A gas insulated switchgear equipment device included in a substation equipment device, said substation equipment device comprising first and second gas insulated main bus bars arranged in two parallel lines on an attachment surface, respectively, a bus-tie-unit interconnecting said first and second gas insulated main bus bars, and a plurality of feeder units arranged along a longitudinal direction of said gas insulated main bus bar, each of said plurality of feeder units having one end connected to each of said gas insulated main bus bars and another end connected to an insulating terminal, wherein:

• first and second bus-section-units are arranged on a portion of each of said gas insulated main bus bars of said substation equipment, respectively;
• each of said bus-section units is insulated by gas and has at least one bus-section-unit circuit breaker having a first end and a second end and disconnecting switches connected to both ends of the bus-section-unit circuit breaker;
• and
• one end of each of said bus-section-units is connected to a corresponding one of said first and second gas insulated main bus bars of said substation equipment device and another end of each of said bus-section-units is provided with at least one external lead-out means connectable to external connecting means of another substation equipment device provided at a location other than a location of said substation equipment device in which said gas insulated switchgear equipment device is included.

A gas insulated switchgear equipment device included in a substation equipment device, said substation equipment device comprising at least one gas insulated main bus bar of a phase separated type arranged in a line on an attachment surface and a plurality of feeder units of a phase separated type arranged along a longitudinal direction of said gas insulated main bus bar, each of said plurality of feeder units having one end connected to said gas insulated main bus bar and another end connected to an insulating terminal and including a circuit breaker, wherein:

• a gas insulated bus-section-unit of a phase separated type is arranged on a portion of said gas insulated main bus bar of said substation equipment device;
• said bus-section-unit includes at least one bus-section-unit circuit breaker having a first end and a second end and a disconnecting switches connected to both ends of the bus-section-unit circuit breaker;
• and
• one end of said bus-section-unit is connected to said gas insulated main bus bar of said substation equipment device and another end of said bus-section-unit is provided with at least one external lead-out means connectable to external connecting means of another substation equipment device provided at a location other than a location of said substation equipment device in which said gas insulated switchgear equipment device is included.

A gas insulated switchgear equipment device included in a substation equipment device, said substation equipment device comprising first and second gas insulated main bus bars of a phase separated type arranged in two parallel lines on an attachment surface, respectively, a bus-tie-unit interconnecting said first and second gas insulated main bus bars, and a plurality of feeder units of a phase separated type arranged along a longitudinal direction of said gas insulated main bus bar, each of said plurality of feeder units having one end connected to each of said gas insulated main bus bars and another end connected to an insulating terminal, wherein:

• first and second gas insulated bus-section-units of a three-phase integral type are arranged on a portion of each of said gas insulated main bus bars of said substation equipment device, respectively;
• each bus-section-unit includes at least one bus-section-unit circuit breaker for each of three phases, each bus-section-unit circuit beaker having a first end and a second end, and disconnecting switches respectively connected to each bus-section-unit circuit breaker at both ends of said bus-section-unit circuit;
• breaker and
• one end of each of said bus-section-units is connected to a corresponding one of said first and second gas insulated main bus bars of a said substation equipment device and another end of each of said bus-section-units is provided with at least one external lead-out means for the three phases which is connectable to external connecting means of another substation equipment device provided at a location other than a location of said substation equipment device in which said gas insulated switchgear equipment device is included.

A gas insulated switchgear equipment device in a substation equipment device, said substation equipment device comprising at least one gas insulated main bus bar of a three-phase integral type arranged in a line on an attachment surface and a plurality of feeder units of a three-phase integral type arranged along a longitudinal direction of said gas insulated main bus bar, each of said plurality of feeder units having one end connected to said gas insulated main bus bar and another end connected to an insulating terminal and including a circuit breaker, wherein:

• a gas insulated bus-section-unit of a phase integral type is arranged on a portion of said gas insulated main bus bar of said substation equipment device;
• said bus-section-unit has at least one bus-section-unit circuit breaker for each of three phases, each bus-section-unit circuit breaker having a first end and second end, and disconnecting switches respectively connected to each bus-section-unit circuit breaker at both ends of each bus-section-unit circuit breaker;
• and
• one end of said bus-section-unit is connected to said gas insulated main bus bar of said substation equipment device and another end of said bus-section-unit is provided with at least one external lead-out means for the three phases which is connectable to external connecting means of another substation equipment device provided at a location other than a location of said substation equipment device in which said gas insulated switchgear equipment device is included.

A gas insulated switchgear equipment device in a substation equipment device, said substation equipment device comprising first and second gas insulated main bus bars of three-phase integral type arranged in two parallel lines on an attachment surface, respectively, a bus-tie-unit of a three-phase integral type interconnecting said first and second gas insulated main bus bars and a plurality of feeder units of a three-phase integral type arranged along a longitudinal direction of said gas insulated main bus bar, each of said plurality of feeder units having one end connected to each of said gas insulated main bus bars and another end connected to an insulating terminal, wherein:

• first and second gas insulated bus-section-units of a three-phase integral type are arranged on a portion of each of said gas insulated main bus bars of said substation equipment device, respectively;
• each of said bus-section-units includes at least one bus-section-unit circuit breaker for each of three phases, each bus-section-unit circuit breaker having a first end and a second end, and disconnecting switches respectively connected to each bus-section-unit circuit breaker at both ends of each bus-section-unit circuit breaker;
• and
• one end of each of said bus-section-units is connected to a corresponding one of said first and second gas insulated main bus bars of said substation equipment device and another end of each of said bus-section-units is provided with at least one external lead-out means for the three phases which is connectable to external connecting means of another substation equipment device provided at a location other than a location of said substation equipment device in which said gas insulated switchgear equipment device is included.

Gas insulated switchgear equipment comprising:

• a first gas insulated switchgear equipment device included in a first substation equipment device, said first substation equipment device comprising at least one first gas insulated main bus bar of a phase separated type arranged in a line on an attachment surface and a first plurality of feeder units of a phase separated type arranged along a longitudinal direction of said first gas insulated main bus bar, and each of said first plurality of feeder units having one end connected to an insulating terminal and including a circuit breaker;
• a second gas insulated switchgear equipment device included in a second substation equipment device, said second substation equipment device comprising at least one second gas insulated main bus bar of a phase separated type arranged in a line on an attachment surface and a second plurality of feeder units of a phase separated type arranged along a longitudinal direction of said second gas insulated main bus bar, and each of said second plurality of feeder units having one end connected to an insulating terminal and including a circuit breaker;
• and
• a gas insulated bus-section-unit of a phase separated type arranged on a portion of each gas insulated main bus bar of at least one of said substation equipment devices, respectively, wherein each bus-section-unit has at least one bus-section-unit circuit breaker having a first end and a second end and disconnecting switches connected to both ends of the bus-section-unit circuit breaker, and one end of each bus-section-unit is connected to a corresponding gas insulated main bus bar of the one substation equipment device and another end of each bus-section-unit is provided with at least one external lead-out means through which and through external connecting means each corresponding gas insulated main bus bar of the one of said substation equipment devices is connected to a gas insulated main bus bar of the other substation equipment device.

Gas insulated switchgear equipment comprising:

• a first gas insulated switchgear equipment device included in a first substation equipment device, said first substation equipment device comprising first and second gas insulated main bus bars of a phase separated type arranged in two parallel lines on a first attachment surface, respectively, a first bus-tie-unit interconnecting said first and second gas insulated main bus bars, and a first plurality of feeder units of a phase separated type arranged along longitudinal directions of said first and second gas insulated main bus bars, and each of said first plurality of feeder units having one end connected to each of said first and second gas insulated main bus bars and another end connected to an insulating terminal;
• a second gas insulated switchgear included in a second substation equipment device, said second substation equipment device comprising third and fourth gas insulated main bus bars of a phase separated type arranged in two parallel lines on a second attachment surface, respectively, a second bus-tie-unit interconnecting said third and fourth gas insulated main bus bars, and a second plurality of feeder units of a phase separated type arranged along longitudinal directions of said third and fourth gas insulated main bus bars, and each of said second plurality of feeder units having one end connected to each of said third and fourth gas insulated main bus bars and another end connected to an insulating terminal;
• and
• bus-section-units of a three phase integral type arranged on a portion main bus bar of at least one of said substation equipment devices, respectively, wherein each bus-section-unit is insulated by gas and has at least one bus-section-unit circuit breaker for each of three phases, each bus-section-unit circuit breaker having a first end and a second end, and disconnecting switches respectively connected to each bus-section-unit circuit breaker at both ends of each bus-section-unit circuit breaker, and one end of each bus-section-unit is connected to a corresponding one of said gas insulated main bus bars of the one of said substation equipment devices and another end of each bus-section-unit is provided with at least one external lead-out means through which and through external connecting means each corresponding gas insulated main bus bar of the one of said substation equipment devices is connected to a gas insulated main bus bar of the other substation equipment device.

Gas insulated switchgear equipment comprising:

• a first gas insulated switchgear equipment device included in a first substation equipment device, said first substation equipment device comprising at least one first gas insulated main bus bar of a three-phase integral type arranged in a line on a first attachment surface and a first plurality of feeder units of a three phase integral type arranged along a longitudinal direction of said first gas insulated main bus bar, and each of said first plurality of feeder units having one end connected to said first gas insulated main bus bar and another end connected to an insulating terminal and including a circuit breaker;
• a second gas insulated switchgear equipment device included in a second substation equipment device, said second substation equipment device comprising at least one second gas insulated main bus bar of a three-phase integral type arranged in a line on a second attachment surface and a second plurality of feeder units of a three-phase integral type arranged along a longitudinal direction of said second gas insulated main bus bar, and each of said second plurality of feeder units having one end connected to said second gas insulated main bus bar and another end connected to an insulating terminal and including a circuit breaker;
• and
• bus-section-units of a three-phase integral type arranged on a portion of each gas insulated main bus bar of at least one of said substation equipment devices, respectively, wherein each bus-section-unit is insulated by gas and has at least one bus-section-unit circuit breaker for each of three phases, each bus-section-unit circuit breaker having at first end and a second end, and disconnecting switches respectively connected to each bus-section-unit circuit breaker at both ends of each bus-section-unit circuit breaker, and one end of each bus-section-unit is connected to a corresponding one of said gas insulated main bus bars of the one of said substation equipment devices and another end of each bus-section-unit is provided with at least one external lead-out means for three phases through which and through external connecting means each corresponding gas insulated main bus bar of the one of said substation equipment devices is connected to a gas insulated main bus bar of the other substation equipment device.

Gas insulated switchgear equipment comprising:

• a first gas insulated switchgear equipment device included in a first substation equipment device, said first substation equipment device comprising first and second gas insulated main bus bars of a three phase integral type arranged in two substantially parallel lines on a first attachment surface, respectively, a first bus-tie-unit of a three-phase integral type interconnecting said first and second gas insulated main bus bars, and a first plurality of feeder units of a three phase integral type arranged along longitudinal directions of said first and second gas insulated main bus bars, and each of said first plurality of feeder unit having one end connected to each of said first and second gas insulated main bus bars and another end including an insulating terminal;
• a second gas insulated switchgear equipment device included in a second substation equipment device, said second substation equipment device comprising third and fourth gas insulated main bus bars of a three phase integral type arranged in two substantially parallel lines on a second detachment surface, respectively, a second bus-tie-unit of a three phase integral type interconnecting said third and fourth gas insulated main bus bars, and a second plurality of feeder units of a three phase integral type arranged along longitudinal directions of said third and fourth gas insulated main bus bars, and each of said second plurality of feeder units having one end connected to each of said third and fourth gas insulated main bus bars and another end including an insulating terminal;
• and
• bus-section-units of a three phase integral type arranged on a portion of each gas insulated main bus bar of one of said substation equipment devices, respectively, wherein each bus-section-unit is insulated by gas and has at least one circuit breaker for each of three phases, each bus-section-unit having a first end and a second end, and disconnecting switches respectively connected to each bus-section-unit circuit breaker at both ends of each bus-section-unit circuit breaker, and one end of each bus-section-unit is connected to a corresponding one of said gas insulated main bus bars of the one of said substation equipment devices and another end of each bus-section-unit is provided with at least one external lead-out means through which and through external connecting means each corresponding gas insulated main bus bar of the one of said substation equipment devices is connected to a gas insulated main bus bar of the other substation equipment device.