CN203825092U - Dedicated box for instrument for detecting ground resistor of electric transmission line - Google Patents
Dedicated box for instrument for detecting ground resistor of electric transmission line Download PDFInfo
- Publication number
- CN203825092U CN203825092U CN201320802287.0U CN201320802287U CN203825092U CN 203825092 U CN203825092 U CN 203825092U CN 201320802287 U CN201320802287 U CN 201320802287U CN 203825092 U CN203825092 U CN 203825092U
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- China
- Prior art keywords
- instrument
- transmission line
- pay
- draw drum
- power transmission
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- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 21
- 241000360057 Gavialis gangeticus Species 0.000 claims abstract description 5
- 235000018290 Musa x paradisiaca Nutrition 0.000 claims abstract description 5
- 240000005561 Musa balbisiana Species 0.000 claims abstract 2
- 238000002788 crimping Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 9
- 241000234295 Musa Species 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000270722 Crocodylidae Species 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses a dedicated box for an instrument for detecting a ground resistor of an electric transmission line, and the dedicated box mainly consists of a box body and a box cover. The interior of the box body is partitioned into at least two parallel wire-coil cavities and at least one instrument cavity. The centers of the wire-coil cavities are vertically provided with pay-off disc supports, and the pay-off disc supports are sleeved by pay-off discs which are wrapped by cables. The cables on the pay-off discs are led out from a side wall of the box body, and the end parts of the cables are connected with wiring clamps. The interior of the instrument cavity is provided with a quakeproof sponge, and the instrument for detecting the ground resistor of the electric transmission line is placed in the instrument cavity. Moreover, the cables of the two pay-off discs are respectively connected with the instrument for detecting the ground resistor of the electric transmission line through plugs. The central cavities of the pay-off discs are sleeved in the cylindrical pay-off disc supports. The upper surfaces of the pay-off discs are respectively provided with a convex turning handle. The wiring clamps are gavial clamps which can increase the contact areas of the clamps with a grounding body. The plugs are banana plugs which can reduce the wiring resistance of the instrument. The box provided by the utility model is reasonable in structure arrangement, is convenient and reliable in application, improves the work efficiency, and can guarantee the accuracy of measurement data.
Description
Technical field
What the present invention relates to is a kind of earth resistance of power transmission line measuring instrument dedicated box for powerline pole tower ground resistance surveying work, belongs to a kind of surveying instrument technical field.
Background technology
Along with the fast development of national economy, the transmission line of electricity of electric system and electric substation's quantity grow with each passing day, but being in field, power transmission sequence is often struck by lightning, and the operation of serious threat line security.Guarantee that Grounding is well the important guarantee that prevents power grid accident.Therefore, grounding resistance measurement is the work that in the work of circuit O&M, normalization is carried out, and is to carry out the important evidence that state is maked an inspection tour maintenance.
In powerline pole tower ground resistance surveying work, the problem of main outlet has following several aspect:
The one, instrument, in transportation, owing to the other reasons such as jolting, causes the deviation of instrument measurement data;
The 2nd, when measuring pole tower ground resistance, operating radius is large, and unwrapping wire and take-up adopt artificial pitch of the laps conventionally, easily causes the flexible circuit conductor phenomenon that fractures and tie a knot, and affects the accuracy of measurement data;
The 3rd, the connection clamp of stake resistance instrument in use for some time, very easily causes damage, thereby causes the deviation of measurement data.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, and provide a kind of, can improve the work efficiency of pole tower ground resistance measurement and the earth resistance of power transmission line measuring instrument dedicated box of accuracy.
The object of the invention is to complete by following technical solution, described earth resistance of power transmission line measuring instrument dedicated box, it is mainly comprised of casing and case lid, in described casing, divide and be separated with at least two juxtaposed drum chambeies and at least one instrument chamber, the central vertical in described two drum chambeies is provided with draw drum support, and on draw drum support, being equipped with the draw drum that is wound with cable, the cable in draw drum is drawn and in end, connects connection clamp from wall box; Described instrument chamber is built-in with shockproof sponge, and is placed with earth resistance of power transmission line detector within it, and the cable on described two draw drums respectively the plug by be separately connected with described earth resistance of power transmission line detector.
The central cavity of described draw drum is inserted on the draw drum support of column, is provided with a protruding turning handle on the upper surface of draw drum; Described connection clamp is one can increase the gavial clip of clip and grounding body contact area, and described plug is one can reduce the banana plug of instrument wiring self-resistance.
Described casing and case lid form by the chain connection of a side, are provided with the crimping projection that can push down draw drum on the internal face of described case lid, corresponding to two draw drums.
The present invention has reasonable structural arrangement, easy to use and reliable, not only increases work efficiency, and can guarantee the features such as measurement data correctness.
Accompanying drawing explanation
Fig. 1 is the inner-cavity structure schematic diagram of earth resistance of power transmission line measuring instrument dedicated box of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done to detailed introduction: shown in Fig. 1, earth resistance of power transmission line measuring instrument dedicated box of the present invention, it is mainly comprised of casing 1 and case lid 2, in described casing 1, divide and be separated with at least two juxtaposed drum chambeies 3 and at least one instrument chamber 4, the central vertical in described two drum chambeies 3 is provided with draw drum support 5, and on draw drum support 5, being equipped with the draw drum that is wound with cable, the cable in draw drum is drawn and in end, connects connection clamp 6 from casing 1 sidewall; Described instrument chamber 4 is built-in with shockproof sponge, and is placed with earth resistance of power transmission line detector within it, and the cable on described two draw drums respectively the plug by be separately connected with described earth resistance of power transmission line detector.
The central cavity of described draw drum is inserted on the draw drum support of column, is provided with a protruding turning handle on the upper surface of draw drum; Described connection clamp is one can increase the gavial clip of clip and grounding body contact area, and described plug is one can reduce the banana plug of instrument wiring self-resistance.
Described casing 1 and case lid 2 form by the chain connection of a side, are provided with the crimping projection 7 that can push down draw drum on the internal face of described case lid 2, corresponding to two draw drums.
The present invention has overcome existing instrument and equipment and has carried the defects such as more in disorder, after using Integral grounding resistance detection case of the present invention, owing to separating, make separately the shockproof sponge protection of stake resistance instrument, make stake resistance instrument in vehicle transport, in personnel's carrying process, be not damaged, thereby guaranteed the correctness of measurement data;
The defects such as the present invention has overcome existing wiring puts by manual circle, easily causes to be wound around and intersects, and knotting needs two people to coordinate unwrapping wire, more time-consuming; Use after the present invention, adopt roller type unwrapping wire, solve the problems such as knotting in unwrapping wire process, winding, random line, spacing deficiency, improved work efficiency;
The present invention has also overcome the little crocodile clip of available technology adopting, and to clamp the existing contact area of grounding body little, affect the defects such as measurement accuracy, use after the present invention, adopt gavial folder to increase the contact area of clip and grounding body, banana plug reduces instrument wiring self-resistance, has improved the accuracy of measuring.
Claims (3)
1. an earth resistance of power transmission line measuring instrument dedicated box, it is mainly comprised of casing and case lid, it is characterized in that dividing and being separated with at least two juxtaposed drum chambeies and at least one instrument chamber in described casing, the central vertical in described two drum chambeies is provided with draw drum support, and on draw drum support, being equipped with the draw drum that is wound with cable, the cable in draw drum is drawn and in end, connects connection clamp from wall box; Described instrument chamber is built-in with shockproof sponge, and is placed with earth resistance of power transmission line detector within it, and the cable on described two draw drums respectively the plug by be separately connected with described earth resistance of power transmission line detector.
2. earth resistance of power transmission line measuring instrument dedicated box according to claim 1, is characterized in that the central cavity of described draw drum is inserted on the draw drum support of column, is provided with a protruding turning handle on the upper surface of draw drum; Described connection clamp is one can increase the gavial clip of clip and grounding body contact area, and described plug is one can reduce the banana plug of instrument wiring self-resistance.
3. earth resistance of power transmission line measuring instrument dedicated box according to claim 1, it is characterized in that described casing and case lid form by the chain connection of a side, are provided with the crimping projection that can push down draw drum on the internal face of described case lid, corresponding to two draw drums.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320802287.0U CN203825092U (en) | 2013-12-10 | 2013-12-10 | Dedicated box for instrument for detecting ground resistor of electric transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320802287.0U CN203825092U (en) | 2013-12-10 | 2013-12-10 | Dedicated box for instrument for detecting ground resistor of electric transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203825092U true CN203825092U (en) | 2014-09-10 |
Family
ID=51480574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320802287.0U Expired - Fee Related CN203825092U (en) | 2013-12-10 | 2013-12-10 | Dedicated box for instrument for detecting ground resistor of electric transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203825092U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384009A (en) * | 2015-12-10 | 2016-03-09 | 国网北京市电力公司 | Ground wire protecting box |
| CN106443336A (en) * | 2016-09-20 | 2017-02-22 | 国网浙江省电力公司嘉兴供电公司 | Power transmission tower grounding grid detection box |
| CN109490585A (en) * | 2018-10-22 | 2019-03-19 | 黎庆佳 | A kind of high voltage transmission line tower detector |
| CN112014644A (en) * | 2020-09-01 | 2020-12-01 | 贵州电网有限责任公司 | Multifunctional tool box for testing ground resistance insulation resistance |
-
2013
- 2013-12-10 CN CN201320802287.0U patent/CN203825092U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384009A (en) * | 2015-12-10 | 2016-03-09 | 国网北京市电力公司 | Ground wire protecting box |
| CN106443336A (en) * | 2016-09-20 | 2017-02-22 | 国网浙江省电力公司嘉兴供电公司 | Power transmission tower grounding grid detection box |
| CN109490585A (en) * | 2018-10-22 | 2019-03-19 | 黎庆佳 | A kind of high voltage transmission line tower detector |
| CN112014644A (en) * | 2020-09-01 | 2020-12-01 | 贵州电网有限责任公司 | Multifunctional tool box for testing ground resistance insulation resistance |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20201210 |