A kind of employing line steel tower series compensation system
The utility model belongs to the high voltage equipment field, relates to a kind of series compensation device, particularly relates to adopting line steel tower in the series compensation device power distribution equipment, and the turnover line is the design of vertical arrangement.
Along with the growth at full speed of national economy, domestic a large amount of 500kV, 750kV and 1000kV transformer station build successively and put into operation, and the transmission capacity of electrical network and stable type level are also standing baptism, are head it off, and the part circuit need be installed series compensation device.According to system situation, this string is mended device can build or be provided with separately string benefit station jointly with transformer station, conventional arrangement according to present series compensation device, generally all adopt door type framework turnover line, lead is arranged in parallel, it is very big to take up an area of index, and the soil becomes valuable day by day as non-renewable resources, and the contradiction between the two is increasing; Simultaneously, the arrangement of conventional series compensation device is difficult to solve the interlaced arrangement problem between each phase of same loop, is unfavorable for operating maintenance.Therefore, be necessary the layout design scheme of series compensation device is studied, mainly be to solve following problem: floor space is restricted when string benefit device zone, conventional arrangement is difficult to satisfy and takes up an area of when requiring, how the reasonably optimizing string is mended arrangement, satisfy and take up an area of index, save land expropriation cost; Conventional string is mended interlaced arrangement between each phase of the same loop of device, is unfavorable for operating maintenance, how to address this problem, and satisfies the run unit requirement; Conventional string complement system complex structure, steel using amount is big, how to simplify wiring, saves steel using amount, saves the investment of lead and gold utensil.
The utility model content:
The purpose of this utility model is to provide and can satisfies actual requirement of engineering, a kind of line steel tower that adopts in power distribution equipment, and the turnover line is the series compensation device new design structure of vertical arrangement.
For achieving the above object, the utility model takes following technical pattern to be achieved:
A kind of employing line steel tower series compensation system, described series compensation system comprises series compensation device body, line steel tower, lead, insulator string and open type equipment; The turnover line of described series compensation system all adopts line steel tower, respectively the series compensation device body is arranged in circuit both sides or a side.
Described series compensation device body comprises series capacitor, lightning arrester, discharging gap, bypass breaker, auxiliary circuit breaker, damping element, auxiliary equipment, insulated platform.
Described open type equipment comprises lightning arrester, isolating switch and voltage transformer.
Other lightning arrester, isolating switch, the voltage transformer of being provided with of described series compensation device body.
Described line steel tower is common-tower double-return or single loop line tower, and the turnover line is vertical arrangement.
Described insulated platform is one or more.
Adopt line steel tower in the series compensation of the present utility model system, the turnover line is the series compensation device new design structure of vertical arrangement, described series compensation device has adopted line steel tower to replace conventional door type framework, each phase conductor of turnover line is vertical arrangement, corresponding to common-tower double-return and single loop tower, respectively series compensation device is arranged in circuit both sides or a side.
The utility model advantage is:
1, adopt line steel tower, pass in and out line all by after the vertical direction arrangement, both be beneficial to the rationalization partition of string benefit device on the different circuits, significantly compression strings recruits the occupation of land of electric installation zone again, and the reduction land expropriation cost economizes the land resource;
2, avoided each phase series compensation platform interlaced arrangement of installing on the different circuits, for between each circuit, normal operation maintenance, the maintenance between mending of circuit and string created advantage, every loop line road string is mended or the repair and maintenance of circuit does not all have influence on the normal operation on this loop line road or another loop line road;
3, string is mended the outside that device is arranged in circuit, has reduced loss of outage when string is mended turnaround of unit, has saved construction investment.
4, owing to adopted and identical tower and the conductor arrangement mode of circuit specialty, can cooperate more in phase, reduce the project of transmitting and converting electricity gross investment with circuit.
5, according to transformer station's (or string is mended the station) actual conditions, each building is arranged in turnover line lead below, not newly-increased the occupation of land, further economize the land resource.
6, line steel tower is only established each 1 in inlet wire and outlet tower, is used for A and is connected mutually and under the C phase conductor draws, and B phase conductor junction has adopted two strain insulator strings to be connected in series in the middle of the circuit, establishes the circuit tower no longer separately, has saved investment.
7, this scheme framework steel using amount is few, saves construction investment;
8, this scheme wiring is succinct, saves the investment of gold utensil and lead.
Description of drawings:
Fig. 1 is the utility model electrical principle wiring schematic diagram.Among the figure: 1, lead; 2, series compensation device body; 3, isolating switch; 4, lightning arrester; 5, voltage transformer; 6, isolating switch; 7, lightning arrester.
Fig. 2 is the utility model power distribution equipment floor map.Among the figure: 1, lead; 2, series compensation device body; 3, isolating switch; 4, lightning arrester; 5, voltage transformer; 6, isolating switch; 7, lightning arrester; 8, iron tower.
Fig. 3 is the vertical sectional schematic diagram of the utility model power distribution equipment.Among the figure: 1, lead; 2, series compensation device body; 4, lightning arrester; 5, voltage transformer; 6, isolating switch.
Fig. 4 is the horizontal sectional schematic diagram of the utility model power distribution equipment (a middle phase conductor connection section).Among the figure: 1, lead; 2, series compensation device body; 3, isolating switch; 4, lightning arrester.Need to prove that lead divides A, B, C three-phase, this figure has only illustrated middle phase (being the B phase) lead to connect section, and other two are connected section similarly.
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
Referring to Fig. 1,2,3,4, a kind of line steel tower that adopts in power distribution equipment, turnover line are the series compensation device power distribution equipment new design structure of vertical arrangement such as Fig. 1～shown in Figure 4.As can be seen from the figure, this kind design arrangement mode has adopted line steel tower, the turnover line is vertical arrangement, then can cooperate easily with the circuit specialty, string benefit device is staggered mutually mutually for each, it is more convenient that equipment is installed maintenance, saved a large amount of occupations of land simultaneously, and more conventional series compensation device arrangement has had very large optimization.
Can draw by above-mentioned analysis, in power distribution equipment, adopt line steel tower, the series compensation device power distribution equipment new design structure that the turnover line is vertical arrangement have floor space little, save expropriation of land, cooperates more with circuit coordinate, reduce that project of transmitting and converting electricity is invested, operating maintenance characteristics such as conveniently, can in engineering, use; And, the power distribution equipment design arrangement scheme of series compensation device solves structure for providing a new optimization.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.