CN202997326U - Insulated bus and high-voltage switch device - Google Patents

Insulated bus and high-voltage switch device Download PDF

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Publication number
CN202997326U
CN202997326U CN 201220695701 CN201220695701U CN202997326U CN 202997326 U CN202997326 U CN 202997326U CN 201220695701 CN201220695701 CN 201220695701 CN 201220695701 U CN201220695701 U CN 201220695701U CN 202997326 U CN202997326 U CN 202997326U
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China
Prior art keywords
terminals
bus
maintenance
cable
work
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CN 201220695701
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Chinese (zh)
Inventor
常立智
李明春
李洪涛
孙建
王鉴
车仓会
袁丽
付颖涛
潘炳府
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State Grid Corp of China SGCC
Beijing Lead Electric Equipment Co Ltd
Beijing Electric Power Corp
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State Grid Corp of China SGCC
Beijing Lead Electric Equipment Co Ltd
Beijing Electric Power Corp
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Priority to CN 201220695701 priority Critical patent/CN202997326U/en
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Abstract

The utility model discloses an insulated bus and a high-voltage switch device. The insulated bus comprises a plurality of wiring terminals including a first working wiring terminal, a second working wiring terminal, a third working wiring terminal, a first maintenance wiring terminal, a first grounding wiring terminal, a second maintenance wiring terminal, a second grounding wiring terminal, a third maintenance wiring terminal and a third grounding wiring terminal. The first working wiring terminal is used for receiving electric energy of first power equipment; the second working wiring terminal is used for outputting electric energy to second power equipment; the third working wiring terminal is used for outputting electric energy to a transformer; the first maintenance wiring terminal is used for maintaining the circuit state of a first maintenance cable; the second maintenance wiring terminal is used for maintaining the circuit state of a second maintenance cable; and the third maintenance wiring terminal is used for maintaining the circuit state of a third maintenance cable. The high-voltage switch device includes the insulated bus. The insulated bus has the advantages: the structure is simple, the connection relationship is simple, the volume of a box-type substation is small, and the occupation space is small.

Description

Isolated bus and high voltage switching device
Technical field
The utility model relates to field of electrical equipment, in particular to a kind of isolated bus and high voltage switching device.
Background technology
Now, in primary and secondary main line in the urban district and new city key area, the construction of shopping mall, leisure center and elaboration block is near international level, but the part power distribution network of these Recreation areas, especially prepackage type case become the very serious road occupying problem of (hereinafter to be referred as " case change ") existence relatively, many casees changes not only tie up gold ground, downtown area, and unordered spoiling the fun straggly.Perhaps be the reason of landscaping, quotidian case change seems somewhat inferior in new reference system, and, will communicate by letter, in process that 10 kilovolts and following electric power overhead cable are renovated with entering, because the case variable volume is excessive and brought very large difficulty to construction.Case with a 250kVA capacity becomes example; high-pressure section generally adopts the looped network switch apparatus of SF6 insulation to realize the function of 10kV part one road inlet wire, one tunnel outlet, one road band tranformer protection; in similar ring main unit product, the volume minimum is that 975mm(is wide) * 751mm(is dark) * 1361mm(is high); its electrical systematic drawing is as shown in Figure 1: low-pressure section mainly adopts moulds shell switch or bar switch, the overall dimension that whole case becomes into: 2850mm(is wide) * 1300mm(is dark) * 1800mm(is high).
For become complex structure, the annexation complexity of high-pressure section in prior art due to case, cause the problem that the case variable volume is large, floor space is large, effective solution is not yet proposed at present.
The utility model content
The complex structure, the annexation that become high-pressure section for the correlation technique case are complicated, cause the problem that the case variable volume is large, floor space is large, effective solution is not yet proposed at present, for this reason, main purpose of the present utility model is to provide a kind of isolated bus and high voltage switching device, to address the above problem.
To achieve these goals, according to an aspect of the present utility model, a kind of isolated bus is provided, this isolated bus comprises: a plurality of terminals, wherein, terminals comprise: the first work terminals, the second work terminals, the 3rd work terminals, the first maintenance terminals, the first ground connection terminals, the second maintenance terminals, the second ground connection terminals, the 3rd maintenance terminals and the 3rd ground connection terminals, wherein, the first work terminals, as the input interface of isolated bus structure, be used for receiving the electric energy of the first power equipment; The second work terminals are connected with the first work terminals by the wire that is built in isolated bus, are used for output electric energy to the second power equipment; The 3rd work terminals are connected with the first work terminals by the wire that is built in isolated bus, are used for the output electric energy to transformer; The first maintenance terminals are connected with the first ground connection terminals by the wire that is built in isolated bus, are used for the line status of maintenance the first maintenance cable; The second maintenance terminals are connected with the second ground connection terminals by the wire that is built in isolated bus, are used for the line status of maintenance the second maintenance cable; The 3rd maintenance terminals are connected with the 3rd ground connection terminals by the wire that is built in isolated bus, are used for the line status of maintenance the 3rd maintenance cable.
Further, the first work terminals are connected with the first power equipment by the inlet wire cable, are used for importing the electric current that flows out from the first power equipment; The second work terminals are connected with the second power equipment by the first outlet cable, are used for the electric current that the first work terminals import is exported to the second power equipment; The 3rd work terminals are connected with transformer by the second outlet cable, are used for the electric current that the first work terminals import is exported to transformer.
Further, the first maintenance terminals are connected with the first maintenance cable, and the first ground connection terminals are connected with the first earth cable, and the first inspection earthing terminals are used for the line status of maintenance the first maintenance cable; The second maintenance terminals are connected with the second maintenance cable, and the second ground connection terminals are connected with the second earth cable, and the second maintenance terminals are used for the line status of maintenance the second maintenance cable; The 3rd maintenance terminals are connected with the 3rd maintenance cable, and the 3rd ground connection terminals are connected with the 3rd earth cable, and the 3rd maintenance terminals are used for the line status of maintenance the 3rd maintenance cable.
Further, the first work terminals and the vertical setting mutually on the longitudinal direction of isolated bus of the first ground connection terminals; The second work terminals and the vertical setting mutually on the longitudinal direction of isolated bus of the second ground connection terminals.
further, the first work terminals comprise the first cylindricality bus, the second work terminals comprise the second cylindricality bus, the 3rd work terminals comprise the 3rd cylindricality bus, the first maintenance terminals comprise the 4th cylindricality bus, the first ground connection terminals comprise the 5th cylindricality bus, the second maintenance terminals comprise the 6th cylindricality bus, the second ground connection terminals comprise the 7th cylindricality bus, the 3rd maintenance terminals comprise the 8th cylindricality bus, the 3rd ground connection terminals comprise the 9th cylindricality bus, wherein, the first cylindricality bus is connected with the second cylindricality bus by the first main bus bar that is built in isolated bus, to set up the annexation between the first work terminals and the second work terminals, the first cylindricality bus is connected with the 3rd cylindricality bus by the second main bus bar that is built in isolated bus, to set up the annexation between the first work terminals and the 3rd work terminals, the 4th cylindricality bus is connected with the 5th cylindricality bus by the first earth bus that is built in isolated bus, to set up the annexation between inlet wire cable and the first ground connection terminals, the 6th cylindricality bus is connected with the 7th cylindricality bus by the second earth bus that is built in isolated bus, to set up the annexation between the first outlet cable and the second ground connection terminals, the 8th cylindricality bus is connected with the 9th cylindricality bus by the 3rd earth bus that is built in isolated bus, to set up the annexation between the second outlet cable and the 3rd ground connection terminals.
Further, the first end of the second main bus bar is connected with the second main bus bar, and the second end of the second main bus bar is connected with the 3rd cylindricality bus.
Further, each terminals comprises respectively: pluggable cable head, and wherein, the pluggable cable head of the first work terminals is connected with the inlet wire cable; The pluggable cable head of the second work terminals is connected with the first outlet cable; The pluggable cable head of the 3rd work terminals is connected with the second outlet cable; The pluggable cable head of the first maintenance terminals is connected with the first maintenance cable; The pluggable cable head of the second maintenance terminals is connected with the second maintenance cable; The pluggable cable head of the 3rd maintenance terminals is connected with the 3rd maintenance cable; The pluggable cable head of the first ground connection terminals is connected with the first earth cable; The pluggable cable head of the second ground connection terminals is connected with the second earth cable; The pluggable cable head of the 3rd ground connection terminals is connected with the 3rd earth cable.
Further, fault detector and potential indicator, mounting strap electrical indicator on the second outlet cable are installed respectively on inlet wire cable/first outlet cable.
Further, on the pluggable cable head of the 3rd work terminals, fuse is installed.
to achieve these goals, according to an aspect of the present utility model, a kind of high voltage switching device is provided, this high voltage switching device comprises isolated bus, isolated bus is three, wherein, three isolated buses are respectively the first isolated bus, the second isolated bus and the 3rd isolated bus, wherein, the input interface of the first isolated bus is connected with the A phase output interface of the first power equipment, the first output interface of the first isolated bus is connected with the A phase input interface of the second power equipment, the second output interface of the first isolated bus is connected with the A phase input interface of transformer, the input interface of the second isolated bus is connected with the B phase output interface of the first power equipment, the first output interface of the second isolated bus is connected with the B phase input interface of the second power equipment, and the second output interface of the second isolated bus is connected with the B phase input interface of transformer, the input interface of the 3rd isolated bus is connected with the C phase output interface of the first power equipment, the first output interface of the 3rd isolated bus is connected with the C phase input interface of the second power equipment, and the second output interface of the 3rd isolated bus is connected with the C phase input interface of transformer.
Make the simple in structure of isolated bus by isolated bus of the present utility model by a plurality of terminals, use simple, the complex structure, the annexation that have solved prior art raising middle flask change high-pressure section are complicated, cause the problem that the case variable volume is large, floor space is large, realized that isolated bus is simple in structure, annexation is simple, thereby when the isolated bus with the application is applied in the case change, the case variable volume is little, floor space is little, and when the high-pressure section work that case becomes, can not interfere between cable.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the electrical systematic drawing according to the high-pressure section of the case change of prior art;
Fig. 2 a is the perspective view according to the isolated bus of the embodiment of the present application;
Fig. 2 b is the rearview according to the isolated bus of the embodiment of the present application;
Fig. 2 c is the cutaway view according to the C-C of Fig. 2 a illustrated embodiment;
Fig. 2 d is the cutaway view according to the B-B of Fig. 2 a illustrated embodiment;
Fig. 2 e is the cutaway view according to the A-A of Fig. 2 b illustrated embodiment;
Fig. 3 is the electrical systematic drawing according to the high voltage switching device of the embodiment of the present application;
Fig. 4 a is the front view according to the high voltage switching device running status of the embodiment of the present application;
Fig. 4 b is the vertical view according to the high voltage switching device running status of Fig. 4 a illustrated embodiment; And
Fig. 4 c is the end view according to the high voltage switching device running status of Fig. 4 a illustrated embodiment.
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As shown in Fig. 2 a to 2e, this isolated bus comprises: a plurality of terminals, wherein, terminals comprise: the first work terminals, the second work terminals, the 3rd work terminals, the first maintenance terminals, the first ground connection terminals, the second maintenance terminals, the second ground connection terminals, the 3rd maintenance terminals and the 3rd ground connection terminals, wherein, the first work terminals as the input interface of isolated bus structure, are used for receiving the electric energy of the first power equipment; The second work terminals are connected with the first work terminals by the wire that is built in isolated bus, are used for output electric energy to the second power equipment; The 3rd work terminals are connected with the first work terminals by the wire that is built in isolated bus, are used for the output electric energy to transformer; The first maintenance terminals are connected with the first ground connection terminals by the wire that is built in isolated bus, are used for the line status of maintenance the first maintenance cable; The second maintenance terminals are connected with the second ground connection terminals by the wire that is built in isolated bus, are used for the line status of maintenance the second maintenance cable; The 3rd maintenance terminals are connected with the 3rd ground connection terminals by the wire that is built in isolated bus, are used for the line status of maintenance the 3rd maintenance cable.
Adopt the application's isolated bus, by a plurality of terminals are set on isolated bus, wherein, terminals comprise: the first work terminals, the second work terminals, the 3rd work terminals, the first maintenance terminals, the first ground connection terminals, the second maintenance terminals, the second ground connection terminals, the 3rd maintenance terminals and the 3rd ground connection terminals.Wherein, the first work terminals are used for receiving the electric energy of the first power equipment; The second work terminals are connected with the first work terminals by the wire that is built in isolated bus, are used for output electric energy to the second power equipment; The 3rd work terminals are connected with the first work terminals by the wire that is built in isolated bus, are used for the output electric energy to transformer; The first maintenance terminals are connected with the first ground connection terminals by the wire that is built in isolated bus, are used for the line status of maintenance the first maintenance cable; The second maintenance terminals are connected with the second ground connection terminals by the wire that is built in isolated bus, are used for the line status of maintenance the second maintenance cable; The 3rd maintenance terminals are connected with the 3rd ground connection terminals by the wire that is built in isolated bus, are used for the line status of maintenance the 3rd maintenance cable.the various operating modes that isolated bus by the application may occur when having taken into full account work and maintenance, make the simple in structure of isolated bus by a plurality of terminals, use simple, solved the complex structure of prior art raising middle flask change high-pressure section, annexation is complicated, cause the case variable volume larger, the problem that floor space is large, realized that isolated bus is simple in structure, annexation is simple, thereby when the isolated bus with the application is applied in the case change, the case variable volume is little, floor space is little, and when the high-pressure section work that case becomes, can not interfere between cable.
Wherein, the isolated bus in above-described embodiment can be the isolated bus row of epoxy casting 10kV.
In above-described embodiment of the application, the first work terminals are connected with the first power equipment by the inlet wire cable, are used for importing the electric current that flows out from the first power equipment; The second work terminals are connected with the second power equipment by the first outlet cable, are used for the electric current that the first work terminals import is exported to the second power equipment; The 3rd work terminals are connected with transformer by the second outlet cable, are used for the electric current that the first work terminals import is exported to transformer.
Particularly, the first work terminals as the input interface of isolated bus structure, are used for receiving the electric energy of the first power equipment; The second work terminals be connected with the first work terminals by the wire that is built in isolated bus, and the second work terminals are used for output electric energy to the second power equipment as the first output interface of isolated bus structure; The 3rd work terminals be connected with the first work terminals by the wire that is built in isolated bus, and the 3rd work terminals are used for the output electric energy to transformer as the second output interface of isolated bus structure.Wherein, the material of the wire in above-described embodiment can be copper, aluminium matter, copper cover aluminum matter.
According to above-described embodiment of the application, the first maintenance terminals are connected with the first maintenance cable, and the first ground connection terminals are connected with the first earth cable, and the first maintenance terminals are used for the line status of maintenance the first maintenance cable; The second maintenance terminals are connected with the second maintenance cable, and the second ground connection terminals are connected with the second earth cable, and the second maintenance terminals are used for the line status of maintenance the second maintenance cable; The 3rd maintenance terminals are connected with the 3rd maintenance cable, and the 3rd ground connection terminals are connected with the 3rd earth cable, and the 3rd maintenance terminals are used for the line status of maintenance the 3rd maintenance cable.Wherein, the line status described in above-described embodiment can be the state whether each cable can work.
Wherein, the first maintenance cable in this embodiment is same cable with above-mentioned inlet wire cable, and the second maintenance cable and above-mentioned the first outlet cable are same cables, and the 3rd overhauls cable and above-mentioned the second outlet cable is same cable.
Whether particularly, the first maintenance terminals are connected with the first ground connection terminals, normal for maintenance the first maintenance cable as the first maintenance interface of isolated bus; Whether the second maintenance terminals are connected with the second ground connection terminals, normal for maintenance the second maintenance cable as the second maintenance interface of isolated bus; Whether the 3rd maintenance terminals are connected with the 3rd ground connection terminals, normal for maintenance the 3rd maintenance cable as the 3rd maintenance interface of isolated bus.
According to above-described embodiment of the application, each terminals comprises respectively: pluggable cable head, and wherein, the pluggable cable head of the first work terminals is connected with the inlet wire cable; The pluggable cable head of the second work terminals is connected with the first outlet cable; The pluggable cable head of the 3rd work terminals is connected with the second outlet cable; The pluggable cable head of the first maintenance terminals is connected with the first maintenance cable; The pluggable cable head of the second maintenance terminals is connected with the second maintenance cable; The pluggable cable head of the 3rd maintenance terminals is connected with the 3rd maintenance cable; The pluggable cable head of the first ground connection terminals is connected with the first earth cable; The pluggable cable head of the second ground connection terminals is connected with the second earth cable; The pluggable cable head of the 3rd ground connection terminals is connected with the 3rd earth cable.Wherein, on the pluggable cable head of the 3rd work terminals, fuse is installed.
Wherein, be respectively arranged with the insulation protection cap on each terminals, the insulation protection cap is arranged on the socket of the terminals that are complementary with pluggable cable head.
According to above-described embodiment of the application, the first work terminals and the vertical setting mutually on the longitudinal direction of isolated bus of the first ground connection terminals; The second work terminals and the vertical setting mutually on the longitudinal direction of isolated bus of the second ground connection terminals.
Particularly, the above-mentioned setting of isolated bus after making service work finish, if do not extract earth connection, just can't make pluggable cable head be installed to the service position, can't work, and has effectively avoided the possibility of personnel's misoperations.The various possibilities that the design of above-mentioned service position, maintenance position and earthing position has occurred when having taken into full account work and maintenance when having guaranteed high-pressure section work, can not interfere between cable.
as shown in Fig. 2 a to 2e, the first work terminals comprise the first cylindricality bus, the second work terminals comprise the second cylindricality bus, the 3rd work terminals comprise the 3rd cylindricality bus, the first maintenance terminals comprise the 4th cylindricality bus, the first ground connection terminals comprise the 5th cylindricality bus, the second maintenance terminals comprise the 6th cylindricality bus, the second ground connection terminals comprise the 7th cylindricality bus, the 3rd maintenance terminals comprise the 8th cylindricality bus, the 3rd ground connection terminals comprise the 9th cylindricality bus, wherein, the first cylindricality bus is connected with the second cylindricality bus by the first main bus bar that is built in isolated bus, to set up the annexation between the first work terminals and the second work terminals, the first cylindricality bus is connected with the 3rd cylindricality bus by the second main bus bar that is built in isolated bus, to set up the annexation between the first work terminals and the 3rd work terminals, the 4th cylindricality bus is connected with the 5th cylindricality bus by the first earth bus that is built in isolated bus, to set up the annexation between the first maintenance terminals and the first ground connection terminals, the 6th cylindricality bus is connected with the 7th cylindricality bus by the second earth bus that is built in isolated bus, to set up the annexation between the second maintenance terminals and the second ground connection terminals, the 8th cylindricality bus is connected with the 9th cylindricality bus by the 3rd earth bus that is built in isolated bus, to set up the annexation between the 3rd maintenance terminals and the 3rd ground connection terminals.
In addition, as shown in Fig. 2 e, each terminals is connected with the case change by securing member 10 respectively.
Wherein, showing in Fig. 2 a to 2e: outlet is to the earth bus 1 of Repair of Transformer, main bus bar 2, the earth bus 3 of line maintenance, main bus bar 4, cylindricality bus 5, cylindricality bus 6, cylindricality bus 7, M10 * 30 hexagon socket cap head screws 8, dowel screw 9.Fig. 2 e is connected with Fig. 2 b to show and is connected the securing member 10 of isolated bus to the power equipment.
In addition, as shown in Fig. 2 a, the first end of the second main bus bar is connected with the first bus, and the second end is connected with the 3rd cylindricality bus.
Particularly, each terminals is arranged on the main body of isolated bus by connector respectively.
In addition, fault detector and potential indicator are installed on inlet wire cable/first outlet cable respectively, mounting strap electrical indicator on the second outlet cable, and each terminals of isolated bus all can be provided with status indicator.
Fig. 3 shows the electrical systematic drawing that case becomes high-pressure section, the connection diagram when Fig. 4 a to 4c shows the running status of three-phase.
As shown in Fig. 3, Fig. 4 a, Fig. 4 b, Fig. 4 c, this high voltage switching device comprises isolated bus, isolated bus is three, wherein, three isolated buses are respectively the first isolated bus, the second isolated bus and the 3rd isolated bus, wherein, the input interface of the first isolated bus is connected with the A phase output interface of the first power equipment, the first output interface of the first isolated bus is connected with the A phase input interface of the second power equipment, and the second output interface of the first isolated bus is connected with the A phase input interface of transformer; The input interface of the second isolated bus is connected with the B phase output interface of the first power equipment, the first output interface of the second isolated bus is connected with the B phase input interface of the second power equipment, and the second output interface of the second isolated bus is connected with the B phase input interface of transformer; The input interface of the 3rd isolated bus is connected with the C phase output interface of the first power equipment, the first output interface of the 3rd isolated bus is connected with the C phase input interface of the second power equipment, and the second output interface of the 3rd isolated bus is connected with the C phase input interface of transformer.
Adopt the application's high voltage switching device, on isolated bus by the employing of the high voltage switching device in case becomes, a plurality of terminals are set, wherein, terminals comprise: the first work terminals, the second work terminals, the 3rd work terminals, the first maintenance terminals, the first ground connection terminals, the second maintenance terminals, the second ground connection terminals, the 3rd maintenance terminals and the 3rd ground connection terminals.Wherein, the first work terminals are used for receiving the electric energy of the first power equipment; The second work terminals are connected with the first work terminals by the wire that is built in isolated bus, are used for output electric energy to the second power equipment; The 3rd work terminals are connected with the first work terminals by the wire that is built in isolated bus, are used for the output electric energy to transformer; The first maintenance terminals are connected with the first ground connection terminals by the wire that is built in isolated bus, are used for the operating state of maintenance the first work terminals; The second maintenance terminals are connected with the second ground connection terminals by the wire that is built in isolated bus, are used for the operating state of maintenance the second work terminals; The 3rd maintenance terminals are connected with the 3rd ground connection terminals by the wire that is built in isolated bus, are used for the operating state of maintenance the 3rd work terminals.the various operating modes that isolated bus by the application may occur when having taken into full account work and maintenance, make the simple in structure of isolated bus by a plurality of terminals, use simple, solved the complex structure of prior art raising middle flask change high-pressure section, annexation is complicated, cause the case variable volume larger, the problem that floor space is large, realized that isolated bus is simple in structure, annexation is simple, thereby when the isolated bus with the application is applied in the case change, the case variable volume is little, floor space is little, and when the high-pressure section work that case becomes, can not interfere between cable.
Wherein, illustrated in Fig. 4 a to 4c: band fuse unit plug-in elbow type cable end 11, fault detector 12, plug-in elbow type cable end 13, status indicator 14, insulation protection cap 15, case become with epoxy casting isolated bus row 16, electrification display 17.Wherein, 14 of status indicators show the status indicator at the first work terminals, and in actual applications, each terminals all can have status indicator.
Particularly, the application's isolated bus is applied to case becomes, there is two states in the high-pressure section that case becomes, i.e. normal operating condition and inspecting state.As shown in Fig. 4 a, when normal operation, the inlet wire cable is connected on isolated bus (being epoxy casting 10kV isolated bus row) by plug-in elbow type cable end, go out line current by the connected mode derivation of plug-in elbow type cable end and the first outlet cable, connect with other power equipments on looped network, the second work terminals (being the outlet of transformer side) that case becomes upper isolated bus are by realizing with the plug-in elbow type cable end of fuse and the connected mode of the second outlet cable.when inspecting state, take to first work terminals (being inlet wire) maintenance as example: with insulating bar respectively with A, B, insulation protection cap on the C three-phase on the first maintenance terminals is pulled up, then with insulating bar respectively with A, B, plug-in elbow type cable end on the C three-phase on the first work terminals is pulled up to be inserted on corresponding the first maintenance terminals, re-use insulating bar respectively with A, B, after insulation protection cap on the C three-phase on the first ground connection terminals is pulled up, check respectively A with electroscope, B, on the C three-phase, whether the first ground connection terminals are charged, if it is not charged, respectively the earth cable head is inserted on the first ground connection terminals with insulating bar, the earth cable head of this moment becomes main earth bus by cable and case and is connected, therefore when circuit is carried out inspection operation, the maintenance cable is ground connection well all, fail safe is higher.For in the embodiment of the present application by the second/the 3rd maintenance position when carrying out line maintenance, inspection operation is with to overhaul the operating sequence of position when carrying out line maintenance by first identical.
Particularly, the environment for use condition of the application's high voltage switching device is as follows:
Height above sea level :≤2000m; Ambient temperature: 40 ℃~+ 45 ℃; 20 ℃ of the highest average temperatures of the whole year; 35 ℃ of the highest daily mean temperatures; Relative humidity :≤95%(25 ℃); Shock resistance: ground horizontal acceleration 0.3g; Ground normal acceleration 0.15g; Effect simultaneously continues three sine waves; Coefficient of safety: 1.67; Electric cable accessories long-term work temperature, overload temperature and short circuit temperature satisfy and its accessory cables requirement.
Technical parameter sees table 1 for details.
Table 1
Figure BDA00002589170700071
Figure BDA00002589170700081
from above description, can find out, the utility model has been realized following technique effect: the various operating modes that the isolated bus by the application may occur when having taken into full account work and maintenance, make the simple in structure of isolated bus by a plurality of terminals, use simple, solved the complex structure of prior art raising middle flask change high-pressure section, annexation is complicated, cause the case variable volume larger, the problem that floor space is large, realized that isolated bus is simple in structure, annexation is simple, thereby when the isolated bus with the application is applied in the case change, the case variable volume is little, floor space is little, and when the high-pressure section work that case becomes, can not interfere between cable.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims (10)

1. isolated bus, it is characterized in that, comprise a plurality of terminals, wherein, described terminals comprise: the first work terminals, the second work terminals, the 3rd work terminals, the first maintenance terminals, the first ground connection terminals, the second maintenance terminals, the second ground connection terminals, the 3rd maintenance terminals and the 3rd ground connection terminals, wherein
Described the first work terminals as the input interface of described isolated bus structure, are used for receiving the electric energy of the first power equipment;
Described the second work terminals are connected with described the first work terminals by the wire that is built in described isolated bus, are used for exporting described electric energy to the second power equipment;
Described the 3rd work terminals are connected with described the first work terminals by the wire that is built in isolated bus, are used for exporting described electric energy to transformer;
Described the first maintenance terminals are connected with described the first ground connection terminals by the wire that is built in described isolated bus, are used for the line status of maintenance the first maintenance cable;
Described the second maintenance terminals are connected with described the second ground connection terminals by the wire that is built in described isolated bus, are used for the line status of maintenance the second maintenance cable;
Described the 3rd maintenance terminals are connected with described the 3rd ground connection terminals by the wire that is built in described isolated bus, are used for the line status of maintenance the 3rd maintenance cable.
2. isolated bus according to claim 1, is characterized in that,
Described the first work terminals are connected with the first power equipment by described inlet wire cable, are used for importing the electric current that flows out from described the first power equipment;
Described the second work terminals are connected with described the second power equipment by described the first outlet cable, are used for the electric current that described the first work terminals import is exported to described the second power equipment;
Described the 3rd work terminals are connected with described transformer by described the second outlet cable, are used for the electric current that described the first work terminals import is exported to described transformer.
3. isolated bus according to claim 1, is characterized in that,
Described the first maintenance terminals are connected with described the first maintenance cable, and described the first ground connection terminals are connected with the first earth cable, and described the first inspection earthing terminals are used for overhauling the line status of described the first maintenance cable;
Described the second maintenance terminals are connected with described the second maintenance cable, and described the second ground connection terminals are connected with the second earth cable, and described the second maintenance terminals are used for overhauling the line status of described the second maintenance cable;
Described the 3rd maintenance terminals are connected with described the 3rd maintenance cable, and described the 3rd ground connection terminals are connected with the 3rd earth cable, and described the 3rd maintenance terminals are used for overhauling the line status of described the 3rd maintenance cable.
4. according to claim 2 or 3 described isolated buses, is characterized in that,
Described the first work terminals and the vertical setting mutually on the longitudinal direction of described isolated bus of described the first ground connection terminals;
Described the second work terminals and the vertical setting mutually on the longitudinal direction of described isolated bus of described the second ground connection terminals.
5. isolated bus according to claim 4, it is characterized in that, described the first work terminals comprise the first cylindricality bus, described the second work terminals comprise the second cylindricality bus, described the 3rd work terminals comprise the 3rd cylindricality bus, described the first maintenance terminals comprise the 4th cylindricality bus, described the first ground connection terminals comprise the 5th cylindricality bus, described the second maintenance terminals comprise the 6th cylindricality bus, described the second ground connection terminals comprise the 7th cylindricality bus, described the 3rd maintenance terminals comprise the 8th cylindricality bus, described the 3rd ground connection terminals comprise the 9th cylindricality bus, wherein,
Described the first cylindricality bus is connected with described the second cylindricality bus by the first main bus bar that is built in described isolated bus, to set up the annexation between described the first work terminals and described the second work terminals;
Described the first cylindricality bus is connected with described the 3rd cylindricality bus by the second main bus bar that is built in described isolated bus, to set up the annexation between described the first work terminals and described the 3rd work terminals;
Described the 4th cylindricality bus is connected with described the 5th cylindricality bus by the first earth bus that is built in described isolated bus, to set up the annexation between described inlet wire cable and described the first ground connection terminals;
Described the 6th cylindricality bus is connected with described the 7th cylindricality bus by the second earth bus that is built in described isolated bus, to set up the annexation between described the first outlet cable and described the second ground connection terminals;
Described the 8th cylindricality bus is connected with described the 9th cylindricality bus by the 3rd earth bus that is built in described isolated bus, to set up the annexation between described the second outlet cable and described the 3rd ground connection terminals.
6. isolated bus according to claim 5, is characterized in that, the first end of described the second main bus bar is connected with described the second main bus bar, and the second end of described the second main bus bar is connected with described the 3rd cylindricality bus.
7. isolated bus according to claim 1, is characterized in that, each described terminals comprises respectively: pluggable cable head, wherein,
The pluggable cable head of described the first work terminals is connected with the inlet wire cable;
The pluggable cable head of described the second work terminals is connected with the first outlet cable;
The pluggable cable head of described the 3rd work terminals is connected with the second outlet cable;
The pluggable cable head of described the first maintenance terminals is connected with described the first maintenance cable;
The pluggable cable head of described the second maintenance terminals is connected with described the second maintenance cable;
The pluggable cable head of described the 3rd maintenance terminals is connected with described the 3rd maintenance cable;
The pluggable cable head of the first ground connection terminals is connected with the first earth cable;
The pluggable cable head of the second ground connection terminals is connected with the second earth cable;
The pluggable cable head of the 3rd ground connection terminals is connected with the 3rd earth cable.
8. isolated bus according to claim 7, is characterized in that, fault detector and potential indicator, mounting strap electrical indicator on described the second outlet cable are installed on described inlet wire cable/first outlet cable respectively.
9. isolated bus according to claim 7, is characterized in that, on the pluggable cable head of described the 3rd work terminals, fuse is installed.
10. a high voltage switching device, is characterized in that, comprises the described isolated bus of any one in claim 1 to 9, described isolated bus is three, and wherein, three described isolated buses are respectively the first isolated bus, the second isolated bus and the 3rd isolated bus, wherein
The input interface of described the first isolated bus is connected with the A phase output interface of the first power equipment, the first output interface of described the first isolated bus is connected with the A phase input interface of described the second power equipment, and the second output interface of described the first isolated bus is connected with the A phase input interface of described transformer;
The input interface of described the second isolated bus is connected with the B phase output interface of the first power equipment, the first output interface of described the second isolated bus is connected with the B phase input interface of described the second power equipment, and the second output interface of described the second isolated bus is connected with the B phase input interface of described transformer;
The input interface of described the 3rd isolated bus is connected with the C phase output interface of the first power equipment, the first output interface of described the 3rd isolated bus is connected with the C phase input interface of described the second power equipment, and the second output interface of described the 3rd isolated bus is connected with the C phase input interface of described transformer.
CN 201220695701 2012-12-14 2012-12-14 Insulated bus and high-voltage switch device Expired - Lifetime CN202997326U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103872592A (en) * 2012-12-14 2014-06-18 国家电网公司 Insulated bus and high-voltage switch device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103872592A (en) * 2012-12-14 2014-06-18 国家电网公司 Insulated bus and high-voltage switch device
CN103872592B (en) * 2012-12-14 2016-06-08 国家电网公司 Isolated bus and high-tension switch gear

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