CN203630225U - 750kV line tension dual-string insulator hand-operated zero value detection device - Google Patents
750kV line tension dual-string insulator hand-operated zero value detection device Download PDFInfo
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- CN203630225U CN203630225U CN201320632898.5U CN201320632898U CN203630225U CN 203630225 U CN203630225 U CN 203630225U CN 201320632898 U CN201320632898 U CN 201320632898U CN 203630225 U CN203630225 U CN 203630225U
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- 239000012212 insulator Substances 0.000 title claims abstract description 46
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000001360 synchronised effect Effects 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract 1
- 239000012211 strain insulator Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
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Abstract
The utility model discloses a 750kV line tension dual-string insulator hand-operated zero value detection device. The 750kV line tension dual-string insulator hand-operated zero value detection device comprises a framework (4), belt walking mechanisms, a detection execution mechanism and a detection control mechanism, wherein a central portion of the framework (4) is arranged at a lower middle position between dual insulator strings, the belt walking mechanisms are respectively arranged at upper portions of two sides of the framework (4), an upper portion of the central portion of the framework is provided with an insulation rod connection ear pedant (5), the framework (4) is driven by the belt walking mechanisms to carry out stepping along an axial direction of insulators (1) and pauses when reaching a measuring position of each insulator (1), two detection arms are inserted in adjacent insulator (1) connection steel caps to measure resistance values of the insulators (1), and degraded low value or zero value insulators are timely discovered and replaced. The 750kV line tension dual-string insulator hand-operated zero value detection device has advantages of simple equipment device, convenient operation, high detection efficiency and low labor intensity.
Description
Technical field
The utility model relates to a kind of for 750kV extra high voltage network hot line job insulator pick-up unit, particularly a kind of device that two strings of strain insulators is carried out to charged manual zero value detection.
Background technology
Insulator is the critical elements of overhead transmission line, and its effect is that live wire and ground are kept apart effectively, makes them keep current potential separately.In service at circuit, insulator bears the impact of the effect of high voltage, mechanical load and the variation of physical environment for a long time, makes it aging or damaged, causes insulator dielectric level to decline, and threatens the safe operation of circuit.
According to the requirement in DL/T596-1996 " power equipment preventive trial rules ", the insulation resistance of every suspended insulator lower than prescribed level, is generally just thought low value or zero resistance insulator.For guaranteeing the normal operation of insulator, detecting in time low value or zero resistance insulator becomes frequent and important task in transmission line of electricity operation maintenance work, is also the difficult problem that in producing at present, urgent need will solve.
Transmission line of electricity band electro-detection anchor support zero resistance insulator, the general sparking distance method that adopts detects, the features such as the difficult observation of existence and accuracy of measurement are poor, particularly 750kV strain tower of transmission line insulator sheet number is more, general single string is between 35-53 sheet, testing tool is long and heavy, and operation is not only wasted time and energy, and is also not easy to long-distance transport.
Summary of the invention
Order of the present utility model is that design one is applicable to two charged insulator null value or the low value detection devices of manually carrying out of insulator string of 750kV power line tension, this device can be in charged situation, and manual, quick and easy carries out low value or zero value detection to two insulator strings.
The technical scheme the utility model proposes is: the two manual zero value detection devices of insulator string of 750kV line tension, comprise framework, belt travel mechanism, detect topworks and detect control gear, it is characterized in that: the center section of described framework is arranged in position on the lower side between two insulator string strings, synchronous belt and synchronous pulley form belt travel mechanism, belt travel mechanism lays respectively at framework two upper lateral parts, and the synchronous belt of belt travel mechanism is fitted in the top of insulator chain; Center section top at framework is provided with insulating bar connecting lug.
The material of described framework is glass epoxy silk extubation tube P850.
Deteriorated insulator be found and be changed to this device can, to two charged low value or the zero value detection of carrying out of insulator string of 750kV power line tension, in time, and its advantage is that apparatus is simple, easy to operate, testing efficiency is high, labour intensity is low.
Accompanying drawing explanation
Fig. 1 is the utility model example structure front view;
Fig. 2 is the utility model example structure left view;
Fig. 3 is the utility model example structure vertical view.
In figure, 1. insulator, 2. synchronous pulley, 3. synchronous belt, 4. framework, 5. insulating bar connecting lug.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
The two manual zero value detection devices of insulator string of 750kV line tension that the utility model is related, comprise framework 4, belt travel mechanism, detect topworks and detect control gear, synchronous belt 3 and synchronous pulley 2 form belt travel mechanism, framework 4 drags stepping on insulator chain by belt travel mechanism and walks, detecting topworks is detecting under control gear control, two detection arm that detect topworks stretch into respectively the connection steel cap place of adjacent two insulators 1, under spring action, be close to steel cap, pulse high-voltage (15000V) in detection arm acts on insulator 1, can produce the pulse current of microampere order, the size of this electric current depends on the resistance value of insulator 1, to this current sample, carry out A/D conversion and numerical analysis, can obtain the resistance value of insulator 1.
If Fig. 1 is to as shown in Fig. 3, the center section of described framework 4 is arranged in position on the lower side, gap between the string of two strings of strain insulators, for 750kV transmission line of electricity, two strings of strain insulators string spacing is generally 500 millimeters, and the intermediate host structure of framework 4 can be arranged on this space; Synchronous belt 3 and synchronous pulley 2 form belt travel mechanism, belt travel mechanism lays respectively at two upper lateral parts of framework 4, the belt travel mechanism of every side comprises a synchronous belt 3 and two synchronous pulleys 2, the wheel shaft of synchronous pulley 2 is fixed on two upper lateral parts of framework 4, and the synchronous belt 3 of belt travel mechanism is fitted in the upper end of insulator 1; This structure of framework 4 and with being connected of two strings of strain insulators, the stepping on two strings of strain insulators of whole pick-up unit is moved more steady, testing process is safe and reliable.
Center section top at framework 4 is provided with insulating bar connecting lug 5, insulating bar and insulating bar abutment ring 5 adaptations, operating personnel pull by insulating bar or promote whole pick-up unit in the stepping of two strings of strain insulators axis direction, while arriving the best assigned position that each insulator 1 measures, suspend, it is optimum detection position that detection arm is positioned at insulator 1 steel cap middle part, contact the most reliable at this position probing arm with steel cap, two detection arm stretch into the connection steel cap place of adjacent insulator 1, resistance to insulator 1 is measured, thereby determines low value or zero resistance insulator.
Due to the Special use environment of measurement mechanism and the overall weight requirement of device, measurement mechanism must select that density is little, good rigidly, material that insulating property are good.Through comparing, select the structural shape of glass epoxy silk extubation tube P850 as this device, this material has good insulating property, higher physical strength and machining property, there is the feature such as more stable size and good chemical resistance, be widely used in the aspects such as motor, the defeated modified line of transformer high-voltage road, oil, chemical industry, communication, playing insulation and support booster action, is the regeneration product of 3240 expoxy glass laminated products.
Claims (2)
- The two manual zero value detection devices of insulator string of 1.750kV line tension, comprise framework (4), belt travel mechanism, detect topworks and detect control gear, it is characterized in that: the center section of described framework (4) is arranged in position on the lower side between two insulator string (1) strings, synchronous belt (3) and synchronous pulley (2) form belt travel mechanism, two belt travel mechanisms lay respectively at framework (4) two upper lateral parts, and the synchronous belt (3) of belt travel mechanism is fitted in the upper end of insulator (1); Be provided with insulating bar connecting lug (5) on the center section top of framework (4).
- 2. the two manual zero value detection devices of insulator string of 750kV line tension according to claim 1, is characterized in that: the material of described framework (4) is glass epoxy silk extubation tube P850.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320632898.5U CN203630225U (en) | 2013-10-14 | 2013-10-14 | 750kV line tension dual-string insulator hand-operated zero value detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320632898.5U CN203630225U (en) | 2013-10-14 | 2013-10-14 | 750kV line tension dual-string insulator hand-operated zero value detection device |
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| Publication Number | Publication Date |
|---|---|
| CN203630225U true CN203630225U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320632898.5U Expired - Fee Related CN203630225U (en) | 2013-10-14 | 2013-10-14 | 750kV line tension dual-string insulator hand-operated zero value detection device |
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| CN (1) | CN203630225U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207864A (en) * | 2016-09-28 | 2016-12-07 | 国网四川省电力公司检修公司 | A kind of manned dolly on 500kV strain insulator string |
| CN106443266A (en) * | 2016-10-18 | 2017-02-22 | 国家电网公司 | Ultra-high-voltage transmission line low-zero-value insulator intelligent detection apparatus and detection method |
| CN106684757A (en) * | 2017-01-22 | 2017-05-17 | 国网河南省电力公司检修公司 | Mobile car for entering electric field along strain tower insulator string in extra-high voltage live working |
-
2013
- 2013-10-14 CN CN201320632898.5U patent/CN203630225U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207864A (en) * | 2016-09-28 | 2016-12-07 | 国网四川省电力公司检修公司 | A kind of manned dolly on 500kV strain insulator string |
| CN106443266A (en) * | 2016-10-18 | 2017-02-22 | 国家电网公司 | Ultra-high-voltage transmission line low-zero-value insulator intelligent detection apparatus and detection method |
| CN106443266B (en) * | 2016-10-18 | 2019-06-04 | 国家电网公司 | UHV transmission line faulty insulator intelligent detection device and detection method |
| CN106684757A (en) * | 2017-01-22 | 2017-05-17 | 国网河南省电力公司检修公司 | Mobile car for entering electric field along strain tower insulator string in extra-high voltage live working |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20191014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |