CN1138326C - Step-up method from 35 KV to 110 KV - Google Patents
Step-up method from 35 KV to 110 KV Download PDFInfo
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- CN1138326C CN1138326C CNB001221078A CN00122107A CN1138326C CN 1138326 C CN1138326 C CN 1138326C CN B001221078 A CNB001221078 A CN B001221078A CN 00122107 A CN00122107 A CN 00122107A CN 1138326 C CN1138326 C CN 1138326C
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- circuit
- power transmission
- kilovolts
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Abstract
The present invention relates to a method for upgrading a conventional 35kV circuit to a compact 110kV circuit. A compact 110kV circuit is composed of a conducting wire, a tower, a base and wire-hanging hardware fittings which belong to the original 35kV power transmission circuit, and an overhead earth wire and an earth body, etc. which are reconfigured according to a 110kV compact principle. The present invention is characterized in that the conducting wires of the circuit have vast-scale decrease of horizontal distance and vertical distance in the same size compared with the traditional circuit. The present invention has the advantages of vast-scale decrease of construction fund, reduced circuit aisle, increased transmission power, etc., and is adapted for directly reforming a 35kV circuit into a 110kV circuit, or newly building a compact 110kV circuit.
Description
The invention belongs to electric power system and send electric professional skill field, particularly a kind of with the 35 kilovolt layout of electric size between lines of boosting when being 110 kilovolt.
At present, the compact power transmission sequence has two kinds both at home and abroad, a kind of is compact power transmission sequence based on the traditional sense of dwindling electric size such as wire spacing, and a kind of is to reduce surge impedance of a line significantly, is main compact power transmission sequence thereby improve through-put power.Because the latter has big meaning for newly-built circuit, therefore present research and construction is the latter, electric pressure all 220 kilovolts and more than.Domestic have the 110 kilovolt compact power transmission sequences of span about 50 meters that build up, but because span is less, thus dwindling of electric size seem and have little significance, be not suitable for the bigger power transmission sequence of span, because of rather than the compact of practical significance.Transform the voltage levels power transmission sequence as by the low-voltage grade, the domestic mode that all adopts routine at present promptly changes the circuit existing equipment, so investment is bigger.
The purpose of this invention is to provide a kind of original 35 kilovolt equipment that utilize, the arrangement of lines on original shaft tower is done suitable change, reconfigure, thereby save 110 kilovolts of compact power transmission sequences of construction fund by 110 kilovolts of compact line standards.
It is 110 kilovolts compact power transmission sequence that design of the present invention is conceived substantially 35 kilovolts of boosting and transformations, it is made up of lead, shaft tower, basis, hanging wire gold utensil and the parts such as the cross-arm that reconfigures by 110 kilovolts of compact principles, overhead ground wire and earth electrode of former 35 kilovolts of power transmission sequences, it is characterized in that: utilize lead (lightning conducter), shaft tower, basis, the hanging wire gold utensil equipment of original 35 kilovolt, and guarantee that original various bar type structural shape do not do change.Minimum horizontal distance is 2.9 meters between lead, and minimum perpendicular distance is 2.5 meters between lead, and the minimum level skew is 0.2 meter between last lower wire, and live part and grounded parts minimum clearance value are 1.15 meters.The maximum use of circuit span is 160 meters, when surpassing 160 meters bar is readjusted or increased newly in the bar position.Lightning outage rate and lightning withstand level index satisfy the rules setting, and the earth electrode earth resistance is not more than 7 Europe.Cross-arm changes DHSZ-20/110 type insulator crossarm on the S type straight line pole.The lead hanging wire changes V-type insulator string compound mode in the π type straight line pole.A type angle pole cross-arm is that 1.15 meters principles are done suitable lengthening by the minimum clearance distance of live part and grounded parts, and increase to hang and draw string, backguy position and mode are 1.15 meters principle by the minimum clearance distance of live part and grounded parts, but are satisfying appropriate change under the force request.
The present invention has following advantage owing to adopt above-mentioned design:
1, utilize compact power transmission sequence technology to realize that it is 110 kilovolt that 35 kilovolt are boosted, owing to use former 35 kilovolt equipment, 110 more newly-built kilovolt of investment are descended, be about 50,000 yuan/kilometer (conventional newly-built 110 kilovolt are 200,000 yuan/kilometer).
2, present technique also is applicable to newly-built 110 kilovolts of compact power transmission sequences, can receive and dwindle the circuit corridor, improves the effect of through-put power.
The present invention is provided by the following drawings and embodiment.
Fig. 1 is S type straight line pole overall structure figure of the present invention.
Fig. 2 is the overall structure view of π type straight line pole of the present invention.
Fig. 3 is the overall structure view of NA3018-30 of the present invention ° of type A type angle pole.
Fig. 4 is the overall structure view of NA3018-60 of the present invention ° of type A type angle pole.
Fig. 5 is the overall structure view of NA3018-90 of the present invention ° of type A type angle pole.
Fig. 6 is a strain insulator bar wire jumper assembly drawing.
The specific embodiments that proposes according to the present invention below in conjunction with the detailed description of the invention:
A specific embodiment of the present invention is 110 kilovolts of neat Pu A-wire compact power transmission sequences, and it is formed by 35 kilovolts of neat eastern line transformations.5.2 kilometers of this total track lengths, lead 1 is the LGJ-150 type, and design safety factor (DSF) is 2.75, and ruling span is 160 meters.The minimum level wire spacing is 3.6 meters between lead, and minimum perpendicular distance is 2.5 meters between lead, and last lower wire minimum level skew is 0.2 meter.This circuit has 32 basic S type straight line pole 2,1 basic π type straight line pole 2,5 basic A type corner types 2.This circuit utilizes path, lead 1 and shaft tower 2, the cement pole basis 3 of original circuit not to do change, original hanging wire gold utensil 4 is all reused in this engineering, straight line pole 2 adopts synthetic insulator, and strain insulator bar 2 adopts original porcelain insulator, by 110 kilovolt standard configurations.It is the GJ-35 type that this circuit is newly established lightning conducter 5 models, and the vertical range of upper conductor 1-1 and lightning conducter 5 is 2.5 meters, and lightning conducter 5 shieldings angle are not more than 30 degree, and newly-increased cement pole earth electrode 6 earth resistances are 7 Europe.Cross-arm 2-1 changes DHSZ-20/110 type insulator crossarm 2-1 into by former iron cross arm 2-1 on the S type straight line pole 2, lead 1 hanging wire changes V-type insulator string compound mode in the π type straight line pole 2, whether suitably A type angle pole 2 optic zones electricity part determines cross-arm 2-1 lengthening with the distance value size of grounded part, lead 1 increase in exterior angle is hung and is drawn string 4-1, appropriate change position that original backguy 2-2 position and live part gap width less than are 1.15 meters or change backguy 2-2 mode.
Claims (3)
1, it is the methods of 110 dried volt compact power transmission sequences that a kind of conventional 35 dried volt power transmission sequences boost, it is the lead 1 by former 35 kilovolts of power transmission sequences, S straight line pole (2), π type straight line pole (2), A type angle pole (2), basis (3), hanging wire gold utensil (4), earth electrode (6) and the last cross-arm (2-1) of S straight line pole (2) that reconfigures by 110 kilovolts of compact principles, overhead ground wire (5) parts are formed, it is characterized in that: 1 minimum horizontal distance of lead is 2.9 meters, minimum perpendicular distance is 2.5 meters between lead, lead ((1-1) up and down, (1-2)) the minimum level skew is 0.2 meter, live part and grounded parts minimum clearance value are 1.15 meters, and the maximum use of circuit span is 160 meters.
2, to boost be the method for 110 kilovolts of compact power transmission sequences to conventional 35 kilovolts of power transmission sequences according to claim 1, it is characterized in that: it is DHSZ-20/110 type insulator crossarm (2-1) that S straight line pole (2) is gone up cross-arm (2-1).
3, to boost be the method for 110 kilovolts of compact power transmission sequences to conventional 35 kilovolts of power transmission sequences according to claim 1, it is characterized in that: lead (1) hanging wire changes V-type insulator string compound mode in the π type straight line pole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001221078A CN1138326C (en) | 2000-07-17 | 2000-07-17 | Step-up method from 35 KV to 110 KV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001221078A CN1138326C (en) | 2000-07-17 | 2000-07-17 | Step-up method from 35 KV to 110 KV |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1277475A CN1277475A (en) | 2000-12-20 |
| CN1138326C true CN1138326C (en) | 2004-02-11 |
Family
ID=4589095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001221078A Expired - Fee Related CN1138326C (en) | 2000-07-17 | 2000-07-17 | Step-up method from 35 KV to 110 KV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1138326C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320903B (en) * | 2008-04-25 | 2010-06-23 | 南方电网技术研究中心 | High voltage direct current asymmetric electric power line pole tower |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620349B (en) * | 2019-09-05 | 2021-01-22 | 上海兆邦电力器材有限公司 | Method for transforming 10kV distribution line into 20kV intelligent line |
-
2000
- 2000-07-17 CN CNB001221078A patent/CN1138326C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320903B (en) * | 2008-04-25 | 2010-06-23 | 南方电网技术研究中心 | High voltage direct current asymmetric electric power line pole tower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1277475A (en) | 2000-12-20 |
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