CN202424066U - 500-kV power distribution device capable of increasing dead weight of jumper wire - Google Patents
500-kV power distribution device capable of increasing dead weight of jumper wire Download PDFInfo
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- CN202424066U CN202424066U CN2012200033340U CN201220003334U CN202424066U CN 202424066 U CN202424066 U CN 202424066U CN 2012200033340 U CN2012200033340 U CN 2012200033340U CN 201220003334 U CN201220003334 U CN 201220003334U CN 202424066 U CN202424066 U CN 202424066U
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- power distribution
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- lead
- wire jumper
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Abstract
The utility model discloses a 500-kV power distribution device capable of increasing the dead weight of a jumper wire. Crossover wires and the jumper wire between two sections of crossover wires are electrically connected. A main transformer wire inlet loop employs a 2*NAHLGJQ-1440 wire as the jumper wire. The crossover wires employ 2*LGKK-600 wires. The crossover wires and the jumper wire are connected through connection hardware. Compared with the scheme of adding a suspension insulator string, the 500-kV power distribution device capable of increasing the dead weight of the jumper wire has the advantages that the height of a 500-kV power distribution device framework is reduced, and steel materials are saved. Compared with the scheme of uniformly employing the 2*NAHLGJQ-1440 wire in the general design, the 500-kV power distribution device capable of increasing the dead weight of the jumper wire has the advantages that the 2*LGKK-600 wires are employed as the crossover wires, and the wire cost of the main transformer wire inlet loop and the like is saved. The crossover wires and the jumper wire of the whole power distribution device are simple in structure and attractive, and economical efficiency is realized.
Description
Technical field
The utility model relates to the 500kV power distribution equipment in a kind of power transformation engineering, belongs to the power technology field.
Background technology
The 500kV power distribution equipment is accomplished the realization of electrical main connecting wire in power distribution equipment through crisscross multilayer cross-line 1, the wire jumper 2 in electric equipment differing heights place, top, and is as shown in Figure 1.
Striding (jumping) line alternate distance, limit, to stride (jumping) line mutually be decision 500kV open type and HGIS (Hybrid Gas Insulated Switchgear to the distance of framework; High voltage switchgear) key factor of power distribution equipment size; Phase back gauge, the phase distance of (SDJ5-1995), striding (jumping) line according to " high voltage distribution installation designing technique rules " need satisfy (1) external overvoltage and windage yaw, (2) internal overvoltage and windage yaw, (3) maximum working voltage, short circuit is waved with these three kinds of conditions of windage yaw under minimum electrical distance requirement.Consider that wire jumper is used for the electric connection between two sections cross-lines, its spaced apart, phase distance are consistent with cross-line usually, according to calculating and engineering practice, generally occur under the windage yaw to the wire jumper maximum wind velocity for the harshest situation in the above-mentioned verification condition of cross-line and wire jumper.
The 500kV power distribution equipment stride (jumping) line according to ampacity, do not produce factors such as corona; Adopt LGKK-600 and two types of leads of NAHLGJQ-1440 of two divisions under most of situation; Main transformer inlet wire operating current is less relatively; General 2 * LGKK-600 lead that adopts; General 2 * NAHLGJQ-1440 the lead that adopts of 500kV circuit outlet, according to formula among " power engineering electrical design handbook (electric once part) " appendix 10-2, get spaced apart that the following two types of leads of certain common meteorological condition need satisfy and distance such as following table mutually:
Be foundation with spaced apart, the phase distance of 2 * NAHLGJQ-1440 often in the 500kV power distribution equipment design, get cubicle width 28m or 27m, corresponding spaced apart, phase distance are respectively 8m, 6m or 7.5m, 6m.Can see by last table; Though under this interval width, 2 * NAHLGJQ-1440 electrical distance everywhere can both be met, because 2 * LGKK-600 wire jumper spaced apart requires greater than 8.83m; The power distribution equipment of 28m or 27m interval width can not satisfy this requirement, needs to adopt corresponding measure.
The measure of in the past taking in the engineering is for increasing suspension insulator at 2 * LGKK-600 lead wire jumper place, become the dangle form of string wire jumper of increase shown in Figure 3 by the nothing of Fig. 2 string route that dangles.Since suspension insulator from great, windage yaw is little, has reduced the windage yaw of 2 * LGKK-600 lead wire jumper, makes that electrical distance is met under the wire jumper windage yaw.But the major defect of this measure is: (1) owing to adopt suspension insulator to increase the sag of wire jumper, the frame girder at this wire jumper place raises with respect to often needing under the situation that does not add suspension insulator, has increased the consumption of framework steel; (2) increased the suspension insulator investment of devices; (3) frame girder need be provided with the suspension insulator hanging point, has increased the complexity of beam.
2011 editions state Netcoms are with having adopted cancellation 2 * LGKK-600 lead in the design B scheme; In the 500kV power distribution equipment, all adopt the scheme of 2 * NAHLGJQ-1440 lead; But the price of present NAHLGJQ-1440 lead is the twice of LGKK-600 lead has a surplus, and this scheme has increased the cost of investment of power distribution equipment conductor greatly.
The utility model content
The purpose of the utility model is not increase suspension insulator, do not changing under the situation of 500kV power distribution equipment framework height; Realize alternate, the unanimity of distance mutually of 2 * LGKK-600,2 * NAHLGJQ-1440 lead; Realize the unification of 500kV power distribution equipment cross-line, jumper wire placement pattern, make cross-line, jumper wire construction economy, succinct, attractive in appearance.
For solving the problems of the technologies described above, the utility model provides a kind of 500kV power distribution equipment that increases the wire jumper deadweight.
With the starting point of following 3 basic conditions in 500kV power distribution equipment cross-line, the verification of wire jumper electrical distance as the present technique scheme: (1) 500kV power distribution equipment electrical distance at present generally is verified as the basis with the electrical distance of 2 * NAHLGJQ-1440 lead; 2 * NAHLGJQ-1440 lead generally can satisfy the windage yaw requirement naturally, need not take other measures.(2) in the electrical distance of cross-line, wire jumper, the harshest situation generally occurs under the windage yaw to the wire jumper maximum wind velocity.(3) in the 500kV power distribution equipment; The cross-line of 2 * LGKK-600 lead generally need not take special measure can satisfy the requirement of electrical distance; The wire jumper of 2 * LGKK-600 lead can not satisfy the requirement of electrical distance not taking to increase under the situation of measures such as suspension insulator.
The technical scheme of the utility model is that a kind of 500kV power distribution equipment that increases the wire jumper deadweight is provided; For conventional cross-line, wire jumpers that adopts 2 * LGKK-600 lead such as main transformer inlet wires; Change into and adopt 2 * NAHLGJQ-1440 lead, and still adopt 2 * LGKK-600 lead as cross-line as wire jumper.
Be connected through connecting gold utensil with said 2 * NAHLGJQ-1440 lead as said 2 * LGKK-600 lead of cross-line as wire jumper.Said connection gold utensil adopts the connection gold utensil of LGKK-600 lead device clamp and the combination of NAHLGJQ-1440 conductor strain clamp.
2 * NAHLGJQ-1440 lead generally can satisfy the windage yaw requirement naturally; Utilize its deadweight need not take other measures as wire jumper; Thereby need not increase measures such as suspension insulator; Do not change the height of 500kV power distribution equipment framework yet, saved the consumption and the suspension insulator investment of devices of framework steel, make frame girder simple for structure.And adopt 2 * LGKK-600 lead as cross-line, and generally need not take special measure can satisfy the requirement of electrical distance yet, practiced thrift the lead cost again.
The beneficial effect that the utility model reached:
The 500kV power distribution equipment of the increase wire jumper deadweight of the utility model has reduced the height of 500kV power distribution equipment framework with respect to the scheme that increases suspension insulator, has saved steel; With respect to the unified scheme that adopts 2 * NAHLGJQ-1440 lead in the universal design; Adopt 2 * LGKK-600 lead as cross-line, 2 * NAHLGJQ-1440 lead is as wire jumper, because the length of wire jumper is much smaller than cross-line; Therefore, saved the lead cost in loops such as main transformer inlet wire.
After adopting the scheme of the utility model; 2 * NAHLGJQ-1440 lead has been adopted in the wire jumper unification of different circuit in the 500kV power distribution equipment; Cross-line adopts respective wire according to the loop works electric current, makes the cross-line of whole power distribution equipment, jumper wire construction succinct, attractive in appearance, has realized economy simultaneously.
Description of drawings
Fig. 1 is a 500kV power distribution equipment sketch map in the prior art;
Fig. 2 is 2 * LGKK-600 wire jumper sketch map;
Fig. 3 is the 2 * LGKK-600 wire jumper sketch map that increases suspension insulator;
Fig. 4 is the 500kV power distribution equipment sketch map of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.Following examples only are used for more clearly explaining the technical scheme of the utility model, and can not limit the protection range of the utility model with this.
As shown in Figure 4; The 500kV power distribution equipment of the increase wire jumper deadweight of the utility model; Technical scheme does not change the structure of cross-line, wire jumper in original power distribution equipment; Unified 2 * NAHLGJQ-1440 the lead 10 that adopts in loops such as main transformer inlet wire is as wire jumper; Can adopt 2 * LGKK-600 lead 20 as cross-line, the wire jumper place in the cross-line loop of employing 2 * LGKK-600 leads 20 such as main transformer inlet wire connect gold utensil 30 cooperate and select for use, connect gold utensil 30 and adopt the gold utensil that connects that LGKK-600 lead device clamps and NAHLGJQ-1440 conductor strain clamp make up.Connect the connection gold utensil that gold utensil is chosen as NYZ-600K or NYH-600K and SY-1440NB combination in the present embodiment.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and distortion, these improvement and distortion also should be regarded as the protection range of the utility model.
Claims (4)
1. 500kV power distribution equipment that increases wire jumper deadweight carries out electric connection by the wire jumper between cross-line and two sections cross-lines, it is characterized in that main transformer inlet wire loop adopts 2 * NAHLGJQ-1440 lead as said wire jumper.
2. the 500kV power distribution equipment of increase wire jumper deadweight according to claim 1 is characterized in that said cross-line adopts 2 * LGKK-600 lead.
3. the 500kV power distribution equipment of increase wire jumper according to claim 2 deadweight is characterized in that, is connected through the connection gold utensil with said 2 * NAHLGJQ-1440 lead as wire jumper as said 2 * LGKK-600 lead of cross-line.
4. the 500kV power distribution equipment of increase wire jumper deadweight according to claim 3 is characterized in that, said connection gold utensil adopts the connection gold utensil of LGKK-600 lead device clamp and the combination of NAHLGJQ-1440 conductor strain clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200033340U CN202424066U (en) | 2012-01-06 | 2012-01-06 | 500-kV power distribution device capable of increasing dead weight of jumper wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200033340U CN202424066U (en) | 2012-01-06 | 2012-01-06 | 500-kV power distribution device capable of increasing dead weight of jumper wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202424066U true CN202424066U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200033340U Expired - Lifetime CN202424066U (en) | 2012-01-06 | 2012-01-06 | 500-kV power distribution device capable of increasing dead weight of jumper wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202424066U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078261A (en) * | 2013-01-15 | 2013-05-01 | 江苏省电力设计院 | 500kV outdoor HGIS (hybrid gas insulated switchgear) arrangement method in extra-high-voltage transformer substation |
| CN107154607A (en) * | 2017-06-22 | 2017-09-12 | 国网新疆电力公司电力科学研究院 | Transmission line of electricity drainage thread wind-proof device |
-
2012
- 2012-01-06 CN CN2012200033340U patent/CN202424066U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078261A (en) * | 2013-01-15 | 2013-05-01 | 江苏省电力设计院 | 500kV outdoor HGIS (hybrid gas insulated switchgear) arrangement method in extra-high-voltage transformer substation |
| CN107154607A (en) * | 2017-06-22 | 2017-09-12 | 国网新疆电力公司电力科学研究院 | Transmission line of electricity drainage thread wind-proof device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP JIANGSU ELECTRIC PO Free format text: FORMER NAME: JIANGSU ELECTRIC POWER DESIGNING INST. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 210009 Gulou District, Jiangsu, Nanjing new model road, No. 5 Patentee after: Chinese energy construction group Jiangsu Prov. Power Design Inst Co., Ltd Address before: 210009 Gulou District, Jiangsu, Nanjing new model road, No. 5 Patentee before: Jiangsu Electric Power Designing Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |