CN203800224U - Shunt line 90 degree spiral clamping head - Google Patents
Shunt line 90 degree spiral clamping head Download PDFInfo
- Publication number
- CN203800224U CN203800224U CN201420189251.4U CN201420189251U CN203800224U CN 203800224 U CN203800224 U CN 203800224U CN 201420189251 U CN201420189251 U CN 201420189251U CN 203800224 U CN203800224 U CN 203800224U
- Authority
- CN
- China
- Prior art keywords
- bevel gear
- shunt line
- fastening
- clamping head
- level board
- 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.)
- Expired - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002510 pyrogen Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- Breakers (AREA)
Abstract
The utility model provides a shunt line 90 degree spiral clamping head which comprises a fastening hook, a fastening screw, a fastening block, a fixation seat, a first bevel gear, a second bevel gear and a connecting plug. The shunt line 90 degree spiral clamping head provided by the utility model is suitable for shunt line installation on a conductor which is vertically arranged. Through actual operation, comparison and testing, shunt lines which are connected through the 90 degree spiral clamping head are used to carry out ground potential charged shorted isolating switch, which has the characteristics of short time, low labor intensity and being fast and convenient. Load sharing can be effectively carried out on partial current. The through-flow capability of a shorted part is improved. Practical requirements of production can be met. The number of times of first-aid repair outage and non planned outage can be reduced. The reliability of power supply is improved. The electricity sale can be improved.
Description
Technical field
The utility model belongs to electric power overhaul and safeguards and use device technique field, particularly relates to 90 ° of spiral dops of a kind of shunt line.
Background technology
In electric power system, because most of electric equipment long term exposure are in outdoor rugged environment, therefore through long-term exposing to the sun and rain, the couple corrosion phenomenon at device junction place can be very serious, result often causes device junction place to occur corrosion and heating, thereby the safe and stable operation of the equipment of giving brings great hidden danger, when serious, even can cause unplanned power failure, thereby seriously reduce power supply reliability index.
Yi Qi electric company power transformation first administrative institute's jurisdiction equipment is example, between 2009 to 2011, occurs 59 of thermal defects, and wherein the heating of GW5 type isolating switch is 29, causes unplanned power failure 18 times.Wherein the heating defect of isolating switch mostly is electric current pyrogenicity type defect, mainly concentrates on the current-carrying positions such as contact, fingertip, conducting rod junction and device junction.
According to < < charging equipment infrared diagnostics using standard > > DL/T664-2008, heating defect can be divided into general, serious, critical three kinds.Any one heating position is judged as serious or critical defect, just must be as early as possible or interruption maintenance immediately, or take to reduce the measure of load current temporarily.Therefore if at adstante febre, manage at heating position shorted on both ends shunt line, utilize the temporary transient load sharing part of this shunt line electric current, thereby reduction hot(test)-spot temperature, assurance equipment reliable power supply, when scheduled outage is overhauled, carry out again respective handling, just can greatly improve the power supply reliability of equipment, reduce unplanned power failure.In order to guarantee that shunt line is connected reliably with heating position two ends, reduce contact resistance, need there is corresponding shunt line dop.But still lack such device at present.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of reasonable in design, simple in structure, easy to operate shunt line 90 ° of spiral dops.
In order to achieve the above object, 90 ° of spiral dops of shunt line that the utility model provides comprise fastening hook, fastening leading screw, fastening block, holder, the first bevel gear, the second bevel gear and attachment plug; Wherein the side of fastening hook is formed with binding post; The L shaped plate of holder for being formed by level board and vertical panel, wherein a side of level board is connected with the lower end of fastening hook, and the middle part of level board is formed with a through hole; The first bevel gear is arranged on the bottom surface of level board in the mode of rotating; The middle part of fastening leading screw is threaded in the centre bore of above-mentioned the first bevel gear, runs through the through hole on level board simultaneously; The second bevel gear is arranged on the front end face of vertical panel in the mode of rotating, and is meshed with the first bevel gear, is connected by a connecting rod that runs through vertical panel with the attachment plug that is positioned at vertical panel rear side simultaneously; Fastening block is arranged on the upper end of fastening leading screw, and is positioned at the space that coupler body surrounds.
The cylindrical structure of described attachment plug for being made by iron material, is formed with two reference columns on its outer circumference surface.
The front end face middle part of described fastening block is formed with a deep-slotted chip breaker.
90 ° of spiral dops of shunt line that the utility model provides are applicable to, on vertically disposed wire, shunt line is installed, by practical operation and comparison test, the shunt line that adopts these 90 ° spiral dops to connect carries out the work of earth potential live short circuit isolating switch, have that the time is short, labour intensity is little, feature conveniently, load sharing part electric current effectively, increased the through-current capability at short circuit position, can meet and produce actual requirement, repairing frequency of power cut and unplanned frequency of power cut have been reduced, improve power supply reliability, increased electricity sales amount.
Accompanying drawing explanation
90 ° of spiral dop structural front view of shunt line that Fig. 1 provides for the utility model.
90 ° of spiral dop structure upward views of shunt line that Fig. 2 provides for the utility model.
Embodiment
The 90 ° of spiral dops of shunt line that the utility model provided below in conjunction with the drawings and specific embodiments are elaborated.
As shown in Figure 1 and Figure 2,90 ° of spiral dops of shunt line that the utility model provides comprise fastening hook 1, fastening leading screw 2, fastening block 3, holder 4, the first bevel gear 5, the second bevel gear 6 and attachment plug 10; Wherein the side of fastening hook 1 is formed with binding post 7; The L shaped plate of holder 4 for being formed by level board 8 and vertical panel 9, wherein a side of level board 8 is connected with the lower end of fastening hook 1, and the middle part of level board 8 is formed with a through hole; The first bevel gear 5 is arranged on the bottom surface of level board 8 in the mode of rotating; The middle part of fastening leading screw 2 is threaded in the centre bore of above-mentioned the first bevel gear 5, runs through the through hole on level board 8 simultaneously; The second bevel gear 6 is arranged on the front end face of vertical panel 9 in the mode of rotating, and is meshed with the first bevel gear 5, is connected by a connecting rod that runs through vertical panel 9 with the attachment plug 10 that is positioned at vertical panel 9 rear sides simultaneously; Fastening block 3 is arranged on the upper end of fastening leading screw 2, and is positioned at the space that coupler body surrounds.
The cylindrical structure of described attachment plug 10 for being made by iron material, is formed with two reference columns 11 on its outer circumference surface.
The front end face middle part of described fastening block 3 is formed with a deep-slotted chip breaker 12, so that contact with the intimate of wire.
The 90 ° of spiral dop usings method of shunt line that now the utility model provided are described below:
1. in the time of need to be at its shorted on both ends shunt line when heating appears in certain isolating switch, because this work is earth potential live operation, need to operate according to < < live-working safety rules > >, and can carry out after person in charge's approval.
2. before short circuit, first check the phase place of isolating switch.
3. by staff, the oxide layer at shunt line to be assembled position on isolating switch both sides wire and dop is removed, the insulating bar that available front end is fixed with wire brush carries out, and makes it contact good.
4. should guarantee that circuit breaker is in closing position, and take off trip(ping) circuit fuse, after locked tripping mechanism, can short circuit.
5. by two staff, the two ends of shorting stub are connected on the binding post 7 of two 90 ° of spiral dops, then the insulating bar front slot that inside is equipped with to strong magnets is inserted in attachment plug 10 outsides, and rotation is to utilize reference column 11 that attachment plug 10 is locked in insulating bar front slot, now fastening hook 1 is in level, lift afterwards simultaneously high insulating bar with and on 90 ° of spiral dops and shunt line, until the wire at shunt line to be assembled place is inserted in the space between fastening hook 1 and fastening block 3, then turn insulating bar, thereby by attachment plug 10, connecting rod drives the second bevel gear 6 to rotate, and the first bevel gear 5 being meshed with the second bevel gear 6 also will together rotate, drive fastening leading screw 2 rotations thereupon, make thus fastening block 3 shift to fastening hook 1 front end inner surface, until utilize fastening block 3 and fastening hook 1 front end inner surface, wire is tightly clamped.Take off insulating bar.
6. finally shunt line is supported, with antihunting, cause ground connection or short circuit.
During certain isolating switch (GW5 type) interruption maintenance, the inventor has carried out repeatedly checking and testing to used shunt line.Utilize at the scene 5501 circuit resistance testers (production of the Baoding Jin Da Electric Applicance Co., Ltd) test of comparing.Contact resistance before operating in short-circuit and shunt line in measuring range is 1.2 milliohms, and the contact resistance after short circuit in measuring range is reduced to 300 micro-ohms, and visible shunt line has played shunting action, has reached Expected Results.
Claims (3)
1. 90 ° of spiral dops of shunt line, is characterized in that: it comprises fastening hook (1), fastening leading screw (2), fastening block (3), holder (4), the first bevel gear (5), the second bevel gear (6) and attachment plug (10); Wherein the side of fastening hook (1) is formed with binding post (7); Holder (4) is the L shaped plate consisting of level board (8) and vertical panel (9), and wherein a side of level board (8) is connected with the lower end of fastening hook (1), and the middle part of level board (8) is formed with a through hole; The first bevel gear (5) is arranged on the bottom surface of level board (8) in the mode of rotating; The middle part of fastening leading screw (2) is threaded in the centre bore of above-mentioned the first bevel gear (5), runs through the through hole on level board (8) simultaneously; The second bevel gear (6) is arranged on the front end face of vertical panel (9) in the mode of rotating, and is meshed with the first bevel gear (5), is connected by a connecting rod that runs through vertical panel (9) with the attachment plug (10) that is positioned at vertical panel (9) rear side simultaneously; Fastening block (3) is arranged on the upper end of fastening leading screw (2), and is positioned at the space that coupler body surrounds.
2. 90 ° of spiral dops of shunt line according to claim 1, is characterized in that: the cylindrical structure of described attachment plug (10) for being made by iron material, is formed with two reference columns (11) on its outer circumference surface.
3. 90 ° of spiral dops of shunt line according to claim 1, is characterized in that: the front end face middle part of described fastening block (3) is formed with a deep-slotted chip breaker (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189251.4U CN203800224U (en) | 2014-04-17 | 2014-04-17 | Shunt line 90 degree spiral clamping head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189251.4U CN203800224U (en) | 2014-04-17 | 2014-04-17 | Shunt line 90 degree spiral clamping head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800224U true CN203800224U (en) | 2014-08-27 |
Family
ID=51382415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420189251.4U Expired - Lifetime CN203800224U (en) | 2014-04-17 | 2014-04-17 | Shunt line 90 degree spiral clamping head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800224U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167678A (en) * | 2014-09-10 | 2014-11-26 | 国家电网公司 | Device replacing 110 KV disconnecting switch under electrification condition and application method thereof |
| CN104485528A (en) * | 2014-12-12 | 2015-04-01 | 国家电网公司 | Grounding wire |
| CN104868403A (en) * | 2015-05-08 | 2015-08-26 | 国家电网公司 | Portable 120-to-400mm2 aluminum conductor steel reinforced cable shunting clamp and use method thereof |
| CN106505442A (en) * | 2016-10-28 | 2017-03-15 | 国网天津市电力公司 | Indoor ground wire break-in earthing dop |
-
2014
- 2014-04-17 CN CN201420189251.4U patent/CN203800224U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167678A (en) * | 2014-09-10 | 2014-11-26 | 国家电网公司 | Device replacing 110 KV disconnecting switch under electrification condition and application method thereof |
| CN104167678B (en) * | 2014-09-10 | 2016-05-25 | 国家电网公司 | Device and the application process thereof of 110 kilovolts of isolating switches of charged for replacement |
| CN104485528A (en) * | 2014-12-12 | 2015-04-01 | 国家电网公司 | Grounding wire |
| CN104868403A (en) * | 2015-05-08 | 2015-08-26 | 国家电网公司 | Portable 120-to-400mm2 aluminum conductor steel reinforced cable shunting clamp and use method thereof |
| CN104868403B (en) * | 2015-05-08 | 2017-11-28 | 国家电网公司 | A kind of portable 120~400mm2Steel-cored aluminium strand shunt line fixture and application method |
| CN106505442A (en) * | 2016-10-28 | 2017-03-15 | 国网天津市电力公司 | Indoor ground wire break-in earthing dop |
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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 | ||
| CP02 | Change in the address of a patent holder |
Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee after: State Grid Corporation of China Patentee after: STATE GRID TIANJIN ELECTRIC POWER Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: STATE GRID TIANJIN ELECTRIC POWER Co. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |