Connecting system for gas-insulated switchgear apparatus

Claim 2

A connecting system and a gas-insulated switchgear apparatus, comprising gas-insulated devices of respective phases installed in a predetermined installation space, an electrical device installed on a foundation formed on a side of said gas-insulated devices, bushings of respective phases supported on a rest on the other side of said electrical device opposite to said gas-insulated devices, and gas-insulated bus bars connecting the gas-insulated devices of respective phases and said bushings with the electrical device therebetween, said gas-insulated bus bars having cases, said system further comprising a plurality of independent pits formed within the foundation of said electrical device, each pit containing only gas insulated bus bar of a respective phase, and entry hatches receiving the gas-insulated bus bars, said entry hatches being formed in a predetermined size, transport means disposed in each of said pits for enabling laying of said gas-insualted bus-bars in said pits, and transfer means mounted on each of the cases of said gas-insulted bus bars of a predetermined length and disposed for engagement with said transport means, said gas-insulated bus bars being laid in the pits by cooperation of said transport means and said transfer means.

Claim 3

A connecting system according to claim 1, wherein said transport means includes a couple of rail embers arranged at predetermined intervals in each of said pits.

Claim 4

A connecting system according to claim 2, wherein said couple of rail members are supported at predetermined intervals on support members.

Claim 5

A connecting system according to claim 1, wherein said transfer means are rotary members mounted on the lower part of each case of the gas-insulated bus bars and are engaged with the transport means.

Claim 6

A connecting system according to claim 1, further comprising a substantially channel-shaped frame member secured to the lower surface of each of said cases of said gas-insulated bus bars, said transfer means being mounted on said frame member.

Claim 7

A connecting system according to claim 1, wherein said transport means includes a couple of rail members secured to the side walls of each of the pits of respective phases, and the transfer means mounted on each of the cases of the gas-insulated bus bars are engaged with said transport means.

Claim 8

A connecting system according to claim 1, further comprising at least two arcuate frame members replaceably mounted on each of the cases of the gas-insulated bus bars at predetermined intervals, said transfer means being secured to said arcuate frame members.

Claim 9

A connecting system according to claim 1, wherein said entry hatches have a common shape and communicate with the pits of respective phases, each of said entry hatches including a closing plate closed after delivery of the gas-insulated bus bars of the predetermined length.

Claim 10

A connecting system and a gas-insulted switchgear apparatus, comprising gas-insulated devices of respective phases installed in a predetermined installation space, an electrical device installed on a foundation formed on a side of said gas-insulated devices, bushings of respective phases supported on a rest on the other side of said electrical device opposite to said gas-insulated devices, and gas-insulated bus bars connecting the gas-insulated devices of respective phases and said bushings with the electrical device therebetween, said gas-insulated bus bars having bases, said system further comprising a plurality of independent pits containing said gas-insulated bus bars of respective phases and formed within the foundation of said electrical device, and entry hatches receiving the gas-insulated bus bars, said entry hatches being formed in a predetermined size, transport means disposed in each of said pits for enabling laying of said gas-insulated bus-bars in said pits, said transport means including a couple of rail members arranged at predetermined intervals in each of said pits, and transfer means mounted on each the cases of said gas-insulated bus bars of a predetermined length and disposed for engagement with said transport means, said transport means being rotary members mounted on the lower part of each case of the gas-insulated bus bars and being engaged with said transport means, said gas-insulated bus bars being laid in said pits by cooperation of said transport means and said transfer means.

Claim 11

A connecting system and a gas-insulted switchgear apparatus, comprising gas-insulated devices of respective phases installed in a predetermined installation space, an electrical device installed on a foundation formed on a side of said gas-insulated devices, bushings of respective phases supported on a rest on the other side of said electrical device opposite to said gas-insulated devices, and gas-insulated bus bars connecting the gas-insulated devices of respective phases and said bushings with the electrical device therebetween, said gas-insulated bus bars having bases, said system further comprising a plurality of independent pits containing said gas-insulated bus bars of respective phases and formed within the foundation of said electrical device, and entry hatches receiving the gas-insulated bus bars, said entry hatches being formed in a predetermined size, transport means disposed in each of said pits for enabling laying of said gas-insulated bus-bars in said pits, said transport means including a couple of rail members arranged at predetermined intervals in each of said pits, and transfer means mounted on each the cases of said gas-insulated bus bars of a predetermined length and disposed for engagement with said transport means, said transport means being rotary members mounted on the lower part of each case of the gas-insulated bus bars and being engaged with said transport means, said gas-insulated bus bars being laid in said pits by cooperation of said transport means and said transfer means.

Claim 12

A connecting system and a gas-insulated switchgear apparatus, comprising a gas-insulated devices of respective phases installed in a predetermined installation space, an electrical device installed on a foundation formed on a side of said gas-insulated devices, bushings of respective phases supported on a rest on the other side of said electrical device opposite to said gas-insulated devices, and gas-insulated bus bars connecting the gas-insulated devices of respective phases and said bushings with the electrical devices therebetween, said gas-insulated bus bars having cases, said system further comprising a plurality of indpendent pits formed within the foundation of said electrical device, each pit containing only one gas insulated bus bar of a respective phase, and entry hatches receiving the gas-insulated bus bars, said entry hatches being formed in a predetermined size, transport means disposed in each of said pits for enabling laying of said gas-insulated bus-bars in said pits, said transport means including a coupled of rail members arranged at predetermined intervals in each of said pits, a substantially channel-shaped frame member secured to the lower surface of each of the cases of said gas-insulated bus bars, and transfer members mounted on said frame member and disposed for engagement with said transport means, said gas-insulated bus bars being laid in said pits by cooperation of said transport means and said transfer means.

Claim 13

A connecting system and a gas-insulated switchgear apparatus, comprising a gas-insulated devices of respective phases installed in a predetermined installation space, an electrical device installed on a foundation formed on a side of said gas-insulated devices, bushings of respective phases supported on a rest on the other side of said electrical device opposite to said gas-insulated devices, and gas-insulated bus bars connecting the gas-insulated devices of respective phases and said bushings with the electrical devices therebetween, said gas-insulated bus bars having cases, said system further comprising a plurality of indpendent pits formed within the foundation of said electrical device, each pit containing only one gas insulated bus bar of a respective phase, and entry hatches receiving the gas-insulated bus bars, said entry hatches being formed in a predetermined size, transport means disposed in each of said pits for enabling laying of said gas-insulated bus-bars in said pits, said transport means including a coupled of rail members arranged at predetermined intervals in each of said pits, a substantially channel-shaped frame member secured to the lower surface of each of the cases of said gas-insulated bus bars, and transfer members mounted on said frame member and disposed for engagement with said transport means, said gas-insulated bus bars being laid in said pits by cooperation of said transport means and said transfer means.