CN203631997U - Three-phase insulating rod applied to transformer station and application of three-phase insulating rod - Google Patents

Three-phase insulating rod applied to transformer station and application of three-phase insulating rod Download PDF

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Publication number
CN203631997U
CN203631997U CN201320876652.2U CN201320876652U CN203631997U CN 203631997 U CN203631997 U CN 203631997U CN 201320876652 U CN201320876652 U CN 201320876652U CN 203631997 U CN203631997 U CN 203631997U
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CN
China
Prior art keywords
phase
bus
insulating rod
rod
isolating switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201320876652.2U
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Chinese (zh)
Inventor
邵松涛
周海鹏
王志毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Energy Engineering Group Anhui Electric Power Design Institute Co Ltd
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China Energy Engineering Group Anhui Electric Power Design Institute Co Ltd
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Application filed by China Energy Engineering Group Anhui Electric Power Design Institute Co Ltd filed Critical China Energy Engineering Group Anhui Electric Power Design Institute Co Ltd
Priority to CN201320876652.2U priority Critical patent/CN203631997U/en
Application granted granted Critical
Publication of CN203631997U publication Critical patent/CN203631997U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a three-phase insulating rod applied to a transformer station and application of the three-phase insulating rod. Fixing fittings are arranged on the insulating rod at a defined interval in the axial direction of the insulating rod, each fixing fitting is used for independently fixing each phase lead or each phase conductor of three phase lines. Two ends of the insulating rod are respectively provided with a fixing piece, and the insulating rod is horizontally installed on support members through the fixing parts. Umbrella skirt are arranged on the insulating rod and are respectively arranged between every two adjacent fixing fittings and between each fixing piece and one adjacent fixing fitting at a defined interval and in a defined shape. Distances and umbrella skirt arrangement between every two adjacent fixing fittings on the insulating rod and between each fixing piece and one adjacent fixing fitting can meet requirements of insulation levels and creepage distances of corresponding voltage grades. According to the three-phase insulating rod, the vertical dimension of a power distribution unit region is effectively reduced, land occupied by the transformer station is reduced, and the application range of an AIS power distribution unit is widened.

Description

Be applied in three phase isolated rod and application thereof in transformer station
Technical field
The utility model relates to a kind of insulating rod, more specifically says the three phase isolated rod being applied in transformer station.
Background technology
In transformer station's power distribution equipment, many occasions need to arrange downlead, and for connecting levels electric equipment, downlead is three-phase structure, and phase spacing need meet electric insulation requirement.Prior art generally adopts suspension insulator, or suspension type post insulator 11 is set running through on beam 61 as shown in Figure 3 a, and downlead and connected conductor thereof are fixed.Taking the AIS power distribution equipment of double-bus structure with I bus and II bus as example, as shown in Figure 3 b: 0 ° of isolating switch of two groups of vertical-telescopics is set, wherein 0 ° of isolating switch of one group of vertical-telescopic is as I isolating switch 2a, 0 ° of isolating switch of another group vertical-telescopic is as II isolating switch 2b, and the three-phase moving contact of two groups of isolating switches is arranged in parallel with I bus 4a and II bus 4b respectively.Three I suspension type post insulator 11a are set above I isolating switch 2a, and I fixed contact 3a is fixed on the below of I suspension type post insulator 11a by gold utensil; Three II suspension type post insulator 11b are set above II isolating switch 2b, and II fixed contact 3b is fixed on II suspension type post insulator 11b below by gold utensil.On bus framework 5, install respectively and run through beam 61a for No. I and run through beam 61b No. II, I suspension type post insulator 11a is fixed on the below of running through beam 61a for No. I, and II suspension type post insulator 11b is fixed on the below of running through beam 61b for No. II.I bus is each to be connected with the I fixed contact 3a of corresponding phase by I downlead 7a respectively mutually; II bus is each to be connected with the II fixed contact 3b of corresponding phase by II downlead 7b respectively mutually.
Run through beam 61a and run through beam 61b for No. II for running through setting due to No. I, and go between and need to avoid certain electrical distance between 7b under I downlead 7a and No. II, to avoid downlead to running through beam electric discharge.Therefore, I bus 4a and I run through between beam 61a and I isolating switch 2a needs to widen spacing, in like manner II bus 4b and run through beam 61b for No. II and II isolating switch 2b between also need to widen spacing, cause upper strata bus longitudinal size excessive, and then increased the layout size in whole power distribution equipment district.Simultaneously, the impact that is subject to electrical distance due to the height of I suspension type post insulator 11a and II suspension type post insulator 11b cannot be compressed, in fixed contact height one timing of isolating switch, need raise bus framework 5 to meet height matching relationship, cause bus framework height higher, increase construction investment, be also greatly unfavorable for operation maintenance and maintenance.
Utility model content
The utility model is for avoiding the existing weak point of above-mentioned prior art, a kind of three phase isolated rod being applied in transformer station is provided, make the fixing more flexible of downlead and connected conductor thereof, to reduce longitudinal size and transformer station's floor space in power distribution equipment district, save investment.
The utility model is that technical solution problem adopts following technical scheme:
The design feature that the utility model is applied in the three phase isolated rod in transformer station is: on insulating rod, with the intervals of setting, each fixing gold utensil is set along the axial of insulating rod, described each fixing gold utensil is respectively used to each phase conductor or each phase conductor in independent fixing triple line, two ends at described insulating rod arrange respectively fixture, and described insulating rod is arranged on supporting member by described fixture level; On described insulating rod, be between every two adjacent fixing gold utensils and between fixing gold utensil and two ends fixture by setting spacing and arrangements full skirt, the distance on insulating rod between adjacent two fixing gold utensils and between each fixing gold utensil and two ends fixture and full skirt configure the insulation level and the creepage distance requirement that meet corresponding voltage grade.
The design feature that the utility model is applied in the three phase isolated rod in transformer station is also: described insulating rod is the being combined through series connection structure of single insulator structure or many insulators, adopts fiberglass or ceramic material; Full skirt adopts silicon rubber or ceramic material.
The feature of the application of the utility model three phase isolated rod in transformer station is: for the double-bus structure with I bus and II bus, circuit breaker is single-row layout, adopt 0 ° of isolating switch of two groups of vertical-telescopics, wherein 0 ° of isolating switch of one group of vertical-telescopic is as I isolating switch, and the three-phase moving contact of I isolating switch is arranged along the direction parallel with I bus; 0 ° of isolating switch of another group vertical-telescopic is as II isolating switch, and the three-phase moving contact of II isolating switch is arranged along the direction parallel with II bus;
Above the moving contact of I isolating switch, by the height of setting, I three phase isolated rod is set along the direction parallel with I bus, the three-phase I fixed contact of I isolating switch is distributed on I three phase isolated rod to set spacing, and I bus is each to be connected with the I fixed contact of corresponding phase by I downlead respectively mutually; Above the moving contact of II isolating switch, by the height of setting, II three phase isolated rod is set along the direction parallel with II bus, three-phase II fixed contact in II isolating switch is distributed on II three phase isolated rod to set spacing, and II bus is each to be connected with the II fixed contact of corresponding phase by II downlead respectively mutually;
No. I suspention beam and No. II suspention beam are set respectively in the bottom of the bus framework for being fixedly installed I bus and II bus, I three phase isolated rod and II three phase isolated rod are fixedly installed on respectively on No. I suspention beam and No. II suspention beam, make I three phase isolated rod be level in the direction setting along parallel with bus respectively with II three phase isolated rod.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model three phase isolated rod, for substituting conventional suspension insulator or suspension type post insulator in prior art transformer station, is used for fixing downlead and connected conductor thereof.Make full use of three phase isolated rod and be not subject to the electrical distance restriction of downlead, the feature of flexible arrangement, make the setting of upper strata bus compacter, thereby reduce transformer station's power distribution equipment longitudinal size and floor space, save investment;
2, in the utility model, three phase isolated rod adopts two ends fixing horizontal mounting means, and it can arbitrarily be adjusted with the discrepancy in elevation between bus framework, can reduce bus framework height, and saving construction investment, facilitates transformer station's O&M and maintenance;
3, the utility model can be used for substituting prior art comprehensively, and owing to having broken through electrical distance restriction, its range of application is more extensive.
4, the utility model can be widely used in 10kV~1000kV transformer station power distribution equipment.Taking the 220kV power distribution equipment of 2011 editions universal design 220-C-1 schemes of State Grid Corporation of China as example, former power distribution equipment longitudinal size is 54 meters, the novel power distribution equipment that utilizes the utility model to derive, can make its longitudinal size be optimized for 31.5 meters, save and take up an area 41.7%, approximately 300,000 yuan of construction investments are also saved at each interval simultaneously.In 220-C-1 scheme, 220kV power distribution equipment is totally 11 intervals, adopts the utility model version can save approximately 3,300,000 yuan of civil engineering costs, saves and takes up an area approximately 0.32 hectare, saves 720,000 yuan of land expropriation costs.Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model is specifically applied schematic diagram;
Fig. 3 a is prior art centre mounted type post insulator scheme of installation;
Fig. 3 b is the execution mode schematic diagram of scheme shown in Fig. 3 a;
Number in the figure: 1 insulating rod, 1a is I three phase isolated rod, 1b is II three phase isolated rod; 2a is I isolating switch, and 2b is II isolating switch; 3a is I fixed contact, and 3b is II fixed contact; 4a is I bus, and 4b is II bus; 5 bus frameworks; 6 supporting members; 6a is No. I suspention beam, and 6b is No. II suspention beam, and 61 run through beam; 61a runs through beam No. I, and 61b runs through beam No. II; 8 fixing gold utensils; 9 fixtures; 10 full skirts; 11 suspension type post insulators; 11a is I suspension type post insulator; 11b is II suspension type post insulator.
Embodiment
Referring to Fig. 1, the three phase isolated rod being applied in the present embodiment in transformer station is on insulating rod 1, with the intervals of setting, each fixing gold utensil 8 is set along the axial of insulating rod 1, each fixing gold utensil 8 is respectively used to each phase conductor or each phase conductor in independent fixing triple line, two ends at insulating rod 1 arrange respectively fixture 9, and insulating rod 1 is arranged on supporting member 6 by fixture 9 levels; On insulating rod 1, be between every two adjacent fixing gold utensils 8 and between fixing gold utensil 8 and two ends fixture 9 by setting spacing and arrangements full skirt 10, the distance on insulating rod 1 between adjacent two fixing gold utensils 8 and between each fixing gold utensil 8 and two ends fixture 9 and full skirt configure the insulation level and the creepage distance requirement that meet corresponding voltage grade.
In concrete enforcement, insulating rod 1 is the being combined through series connection structure of single insulator structure or many insulators, adopts fiberglass or ceramic material; Full skirt 10 adopts silicon rubber or ceramic material.
Referring to Fig. 2, for the double-bus structure with I bus 4a and II bus 4b, and circuit breaker is the scheme of single-row layout, adopt 0 ° of isolating switch of two groups of vertical-telescopics, wherein 0 ° of isolating switch of one group of vertical-telescopic is as I isolating switch 2a, and the three-phase moving contact of I isolating switch 2a is arranged along the direction parallel with I bus 4a; 0 ° of isolating switch of another group vertical-telescopic is as II isolating switch 2b, and the three-phase moving contact of II isolating switch 2b is arranged along the direction parallel with II bus 4b.
Above the moving contact of I isolating switch 2a, by the height of setting, I three phase isolated rod 1a is set along the direction parallel with I bus 4a, the three-phase I fixed contact 3a of I isolating switch 2a is distributed in I three phase isolated rod 1a above to set spacing, and I bus 4a is each to be connected with the I fixed contact 3a of corresponding phase by I downlead 7a respectively mutually.
Above the moving contact of II isolating switch 2b, by the height of setting, II three phase isolated rod 1b is set along the direction parallel with II bus 4b, three-phase II fixed contact 3b in II isolating switch 2b is distributed in II three phase isolated rod 1b above to set spacing, and II bus 4b is each to be connected with the II fixed contact 3b of corresponding phase by II downlead 7b respectively mutually.
In the embodiment shown in Fig. 2 b, No. I suspention beam 6a and No. II suspention beam 6b are set respectively in the bottom of the bus framework 5 for being fixedly installed I bus 4a and II bus 4b, I three phase isolated rod 1a and II three phase isolated rod 1b are fixedly installed on respectively No. I suspention beam 6a and suspend beam 6b for No. II in midair above, make I three phase isolated rod 1a be level in the direction setting along parallel with bus respectively with II three phase isolated rod 1b.
In the present embodiment, utilize a three phase isolated rod to substitute three suspension type post insulators of prior art, structure is simpler, easier for installation, and cost declines to some extent.Utilize the fixing downlead of the utility model three phase isolated rod and static contact isolation switch, between downlead and suspention beam, not limited by electrical distance, make upper strata bus can be arranged in isolating switch directly over, effectively compress the required longitudinal size of upper strata busbar arrangement, thereby reduced transformer station's power distribution equipment longitudinal size and floor space.In addition, because suspention beam can arbitrarily be adjusted height as required, the discrepancy in elevation of three phase isolated rod and the static contact isolation switch being attached thereto and bus framework is compressible, thereby reaches the object that reduces bus framework height, reduces investment outlay.
In the present embodiment, three phase isolated rod also can be widely used in utilizing in prior art the occasion of suspension insulator or the fixing downlead of suspension type post insulator and connected conductor thereof, such as, be used for replacing the main transformer in 2011 editions universal design 220-C-2 schemes of State Grid Corporation of China, the suspension type post insulator that mother establishes interval, all can play the effect of simplifying power distribution device structure, reducing investment outlay.

Claims (3)

1. the three phase isolated rod being applied in transformer station, it is characterized in that: on insulating rod (1), with the intervals of setting, each fixing gold utensil (8) is set along the axial of insulating rod (1), described each fixing gold utensil (8) is respectively used to each phase conductor or each phase conductor in independent fixing triple line, at the two ends of described insulating rod (1), fixture (9) is set respectively, described insulating rod (1) is arranged on supporting member (6) by described fixture (9) level; On described insulating rod (1), be between every two adjacent fixing gold utensils (8) and between fixing gold utensil (8) and two ends fixture (9) by setting spacing and arrangements full skirt (10), between upper adjacent two the fixing gold utensils of insulating rod (1) (8), and distance between each fixing gold utensil (8) and two ends fixture (9) and full skirt configuration meet insulation level and the creepage distance requirement of corresponding voltage grade.
2. the three phase isolated rod being applied in transformer station according to claim 1, is characterized in that: described insulating rod (1) is the being combined through series connection structure of single insulator structure or many insulators, adopts fiberglass or ceramic material; Described full skirt (10) adopts silicon rubber or ceramic material.
3. the transformer station of three phase isolated rod described in an application rights requirement 1, it is characterized in that: for the double-bus structure with I bus (4a) and II bus (4b), circuit breaker is single-row layout, adopt 0 ° of isolating switch of two groups of vertical-telescopics, wherein 0 ° of isolating switch of one group of vertical-telescopic is as I isolating switch (2a), and the three-phase moving contact of I isolating switch (2a) is arranged along the direction parallel with I bus (4a); 0 ° of isolating switch of another group vertical-telescopic is as II isolating switch (2b), and the three-phase moving contact of II isolating switch (2b) is arranged along the direction parallel with II bus (4b);
Top at the moving contact of I isolating switch (2a) arranges I three phase isolated rod (1a) along the direction parallel with I bus (4a) by the height of setting, the three-phase I fixed contact (3a) of I isolating switch (2a) is distributed in I three phase isolated rod (1a) above to set spacing, and I bus (4a) respectively connects with the I fixed contact (3a) of corresponding phase by I downlead (7a) respectively mutually; Top at the moving contact of II isolating switch (2b) arranges II three phase isolated rod (1b) along the direction parallel with II bus (4b) by the height of setting, II isolating switch 2b) in three-phase II fixed contact (3b) to set spacing, to be distributed in II three phase isolated rod (1b) upper, II bus (4b) is II fixed contact (3b) connection with corresponding phase by II downlead (7b) respectively mutually respectively;
No. I suspention beam (6a) and No. II suspention beam (6b) are set respectively in the bottom of the bus framework (5) for being fixedly installed I bus (4a) and II bus (4b), I three phase isolated rod (1a) and II three phase isolated rod (1b) are fixedly installed on respectively No. I suspention beam (6a) and No. II suspention beam (6b) is upper, makes I three phase isolated rod (1a) be level in the direction setting along parallel with bus respectively with II three phase isolated rod (1b).
CN201320876652.2U 2013-12-26 2013-12-26 Three-phase insulating rod applied to transformer station and application of three-phase insulating rod Withdrawn - After Issue CN203631997U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320876652.2U CN203631997U (en) 2013-12-26 2013-12-26 Three-phase insulating rod applied to transformer station and application of three-phase insulating rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320876652.2U CN203631997U (en) 2013-12-26 2013-12-26 Three-phase insulating rod applied to transformer station and application of three-phase insulating rod

Publications (1)

Publication Number Publication Date
CN203631997U true CN203631997U (en) 2014-06-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103715615A (en) * 2013-12-26 2014-04-09 中国能源建设集团安徽省电力设计院 Three-phase insulation rod applied to transformer substation and application thereof
CN108551141A (en) * 2018-04-23 2018-09-18 李宪宝 Suspension insulator lifts Quick Release folder and installation method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103715615A (en) * 2013-12-26 2014-04-09 中国能源建设集团安徽省电力设计院 Three-phase insulation rod applied to transformer substation and application thereof
CN103715615B (en) * 2013-12-26 2016-07-06 中国能源建设集团安徽省电力设计院有限公司 It is applied in the three-phase insulation rod in transformer station and adopts the transformer station of this insulating bar
CN108551141A (en) * 2018-04-23 2018-09-18 李宪宝 Suspension insulator lifts Quick Release folder and installation method

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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 ANHUI ELECTRIC POWE

Free format text: FORMER NAME: CHINA ENERGY CONSTRUCTION GROUP ANHUI ELECTRIC POWER DESIGN INSTITUTE

CP01 Change in the name or title of a patent holder

Address after: 230601, No. 369, prosperous road, Hefei economic and Technological Development Zone, Anhui

Patentee after: Co., Ltd of China Energy Construction Group Anhui Electric Power Design Institute

Address before: 230601, No. 369, prosperous road, Hefei economic and Technological Development Zone, Anhui

Patentee before: Anhui Electric Power Design Institute, CEEC

AV01 Patent right actively abandoned

Granted publication date: 20140604

Effective date of abandoning: 20160706

C25 Abandonment of patent right or utility model to avoid double patenting