CN203561696U - Auxiliary device for ground resistance measurement - Google Patents
Auxiliary device for ground resistance measurement Download PDFInfo
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- CN203561696U CN203561696U CN201320638957.XU CN201320638957U CN203561696U CN 203561696 U CN203561696 U CN 203561696U CN 201320638957 U CN201320638957 U CN 201320638957U CN 203561696 U CN203561696 U CN 203561696U
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- supporting plate
- resistance measurement
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- welded
- face
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Abstract
The utility model relates to an auxiliary device for ground resistance measurement which is used for measuring electrical variables, particularly to an auxiliary device for ground resistance measurement which is used for ground connection, such as measurement of contact resistance of a ground plate, or to a device used for physical geography, particularly to a device that enables grounding of a generator. The purpose is to provide an auxiliary device for ground resistance measurement which is simple in structure, time-saving, safe and convenient. The auxiliary device for ground resistance measurement in the utility model comprises a welded plate (2), and a supporting plate (3) which are of conducting materials, the welded plate (2) is matched with a solder side (11) of electrical equipment (1), an insulating part of the solder side (11) is removed, the welded plate (2) is welded to the solder side (11), the supporting plate (3) is fixed on the welded plate (2), and an included angle exists between the normal of the supporting plate (3) and the normal of the welded plate (2).
Description
Technical field
The utility model relates to a kind of for measuring the grounding resistance measurement servicing unit of electric variable, particularly relates to one for ground connection, the grounding resistance measurement servicing unit of for example measurement of ground plate contact resistance.Or a kind of for geophysics, particularly relate to a kind of device of coupling the generator to the groun.
Background technology
Mostly Substation Electric Equipment down conductor is round steel or the making of zinc-plated band iron, is in operation, and down conductor, owing to sometimes suffering the impacts such as outside destroy or chemical corrosion, has tended to loss or phenomenon of rupture and occurred.Grounding body soil around also can, due to arid, freezing impact, change stake resistance, so regularly the stake resistance of Measurement accuracy transformer station is very important.According to the measurement guide rule > > regulation of < < earthing device characterisitic parameter, transformer station often need carry out grounding resistance measurement every year, this is a comparatively loaded down with trivial details job, because down conductor is anticorrosion or corrosion all affects the accuracy of measurement, during measurement, need to polish to the measurement point of every down conductor, consume a large amount of time, brought great inconvenience also to operations staff's surveying work.
The articulating of temporary ground wire in the time of in unconventional overhaul of the equipments or equipment replacement process, the accident potential that causes maintainer's induced electricity to get an electric shock in operation process because ground connection is unreliable.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of simple in structure, save time, the grounding resistance measurement servicing unit of safe ready.
The utility model grounding resistance measurement servicing unit, comprises welded plate, supporting plate.
Described welded plate and supporting plate are conductive material.Described welded plate matches with the face of weld of electrical equipment.Welded plate is welded on face of weld.On welded plate, be fixed with supporting plate.The normal of described supporting plate and the normal of welded plate have angle.
The utility model grounding resistance measurement servicing unit, wherein said supporting plate is provided with ground wire hole.Described ground wire hole is the through hole of supporting plate normal direction.
Described ground wire hole is provided with bolt.Ground wire hole has nut.Described nut matches with bolt.Nut has ground wire.
The utility model grounding resistance measurement servicing unit, wherein said supporting plate is provided with the anti-corrosion sheath matching with its shape outward.The material of described anti-corrosion sheath is rubber.
The utility model grounding resistance measurement servicing unit, wherein said supporting plate and welded plate are welded and fixed.
The utility model grounding resistance measurement servicing unit, wherein said supporting plate and welded plate are integrated.
The utility model grounding resistance measurement servicing unit, is provided with chamfering between the face of wherein said supporting plate and face.
The utility model grounding resistance measurement servicing unit, wherein said face of weld is plane.Described welded plate is the rectangular slab matching with it.
The utility model grounding resistance measurement servicing unit, wherein said face of weld is the face of cylinder.Described welded plate is the arc notch board matching with it.
The utility model grounding resistance measurement servicing unit, scribbles vaseline on wherein said welded plate and supporting plate.
The utility model grounding resistance measurement servicing unit, wherein said supporting plate is long 63mm, wide 40mm, high 4.8mm Steel material.Described welded plate is the Steel material of long 30mm, wide 40mm, high 4.8mm.Described ground wire bore dia is 16mm.The center of circle in ground wire hole is positioned at apart from left and right section 20mm, and distance of center circle is from 21mm place, outer face.
The utility model grounding resistance measurement servicing unit difference from prior art is the insulating paint that the utility model grounding resistance measurement servicing unit is polished on face of weld by milling tools, and welded plate is welded on face of weld, welded plate bottom is fixed with supporting plate, makes the electrical equipment series connection at supporting plate and face of weld place.When measurement of Grounding Resistance, only the measurement of ohmmeter need be clipped on supporting plate, the other end is clipped on down conductor, just can carry out to electrical equipment the measurement of stake resistance.Solved the problem that large electric appliances equipment does not have place can allow the measurement folder of ohmmeter clamp, simplified the process of the stake resistance to regular Measurement accuracy transformer station, the time of while having saved grounding resistance measurement, measurement point having been polished, the work efficiency while having improved grounding resistance measurement.The utility model is simple in structure, removes as far as possible unnecessary complicated machinery mechanism, can reduce self-resistance, thus the impedance while reducing ground connection.
Ground wire hole on the utility model grounding resistance measurement servicing unit medium-height trestle plate is bolted the earth terminal of temporary ground wire.Earth pile-head when ground wire can be used as temporary ground wire and articulates, during for unconventional overhaul of the equipments or equipment replacement process, temporary ground wire articulates, improve substation equipment service work efficiency, effectively prevented the accident potential of getting an electric shock because of the unreliable maintainer's of the causing induced electricity of ground connection in operation process.Supporting plate has and important meaning the standardized management of transformer station by anti-corrosion protective sleeve, and both protective cradle plate was difficult for being corroded, and has strengthened the serviceable life of grounding resistance measurement servicing unit, avoids again the unnecessary accidental injury of workmen.Welded plate and supporting plate are selected welding or the one-body molded permissible stress that can increase grounding resistance measurement servicing unit.The accidental injury when chamfering on supporting plate can avoid workman to construct.The improvement that the shape of welded plate matches as plane, the face of cylinder according to the shape of different face of weld, makes welded plate adapt to more complex situations.After end-of-job to smearing vaseline on welded plate and supporting plate, oxidation effectiveness and corrosion that can less grounding resistance measurement servicing unit.Supporting plate is selected long 63mm, wide 40mm, high 4.8mm Steel material, can reduce as much as possible the floor area of supporting plate, guarantees job applications simultaneously, completes conduction, avoids the impact of excessive resistance on ground connection.Welded plate is the Steel material of long 30mm, wide 40mm, high 4.8mm, can coordinate with supporting plate and guarantee job applications, completes conduction, avoids the impact of excessive resistance on ground connection.Ground wire bore dia is 16mm, and the center of circle in ground wire hole is positioned at apart from left and right section 20mm, apart from 21mm place, outer face, facilitates staff to use, and guarantees permissible stress.
Below in conjunction with accompanying drawing, grounding resistance measurement servicing unit of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is the axonometric drawing of the utility model grounding resistance measurement servicing unit embodiment 1;
Fig. 2 is the front view of the utility model grounding resistance measurement servicing unit embodiment 1;
Fig. 3 is the axonometric drawing of the utility model grounding resistance measurement servicing unit embodiment 2;
Fig. 4 is the axonometric drawing of the utility model grounding resistance measurement servicing unit embodiment 2 welded plates and supporting plate;
Fig. 5 is the axonometric drawing that the utility model grounding resistance measurement servicing unit embodiment 2 installs anti-corrosion sheath additional.
Embodiment
Embodiment 1
As shown in Figure 1, the utility model grounding resistance measurement servicing unit comprises welded plate 2, supporting plate 3.
Described welded plate 2 and supporting plate 3 are conductive material.Described welded plate 2 matches with the face of weld 11 of electrical equipment 1.Described face of weld 11 is plane, external dressing insulating paint.Face of weld 11 is connected with down conductor 12.Welded plate 2 is rectangular slab.Welded plate 2 is the Steel material of long 30mm, wide 40mm, high 4.8mm.Described face of weld 11 is removed insulating paint by milling tools.Welded plate 2 is welded on face of weld 11.On welded plate 2, be fixed with supporting plate 3.Described supporting plate 3 is long 63mm, wide 40mm, high 4.8mm Steel material.The normal of the normal of supporting plate 3 and welded plate 2 is 90 ° of angles.Between the face of supporting plate 3 and face, be provided with chamfering.Supporting plate 3 is integrated with welded plate 2.
As shown in Figure 2, described supporting plate 3 is provided with ground wire hole 31.Described ground wire hole 31 is the through hole of supporting plate 3 normal directions.Described ground wire hole 31 diameters are 16mm.The center of circle in ground wire hole 31 is positioned at apart from left and right section 20mm, and distance of center circle is from 21mm place, outer face.
Described ground wire hole 31 is provided with bolt 32.Ground wire hole 31 has nut 33.Described nut 33 matches with bolt 32.Nut 33 has ground wire 331.
The installation process of embodiment 1 is as follows:
1, on electric equipment 1, select rational face of weld 11.
2, utilize milling tools that the insulating paint on face of weld 11 is removed.
3, welded plate 2 is welded on face of weld.
4, the bolt on ground wire hole 31 32 is matched with nut 33.
5, ground wire 331 is connected with other equipment of wanted ground connection.
As shown in Figure 3, Figure 4, the present embodiment 2 difference from Example 1 are.Described face of weld 11 is the face of cylinder.The arc notch board of described welded plate 2 for matching with it.Welded plate 2 is welded and fixed with supporting plate 3.On described supporting plate 3, be not provided with bolt 32, nut 33 and ground wire 331.On welded plate 2 and supporting plate 3, scribble vaseline.
As shown in Figure 5, the outer anti-corrosion sheath 4 matching with its shape that is provided with of described supporting plate 3.The material of described anti-corrosion sheath 4 is preferably rubber.
The installation process of embodiment 2 is as follows:
1, on electric equipment 1, select rational face of weld 11.
2, utilize milling tools that the insulating paint on face of weld 11 is removed.
3, welded plate 2 is welded on face of weld.
4, one end of ohmmeter is clipped on supporting plate 3, the other end is clipped on down conductor 12.
5, after measurement, ammeter is regained.Welded plate 2 and supporting plate 3 are evenly smeared vaseline.And on supporting plate, be inserted in anti-corrosion sheath 4.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (10)
1. a grounding resistance measurement servicing unit, is characterized in that: comprise welded plate (2), supporting plate (3);
Described welded plate (2) and supporting plate (3) are conductive material, described welded plate (2) matches with the face of weld (11) of electrical equipment (1), welded plate (2) is welded on face of weld (11), on welded plate (2), be fixed with supporting plate (3), the normal of the normal of described supporting plate (3) and welded plate (2) has angle.
2. grounding resistance measurement servicing unit according to claim 1, is characterized in that: described supporting plate (3) is provided with ground wire hole (31), and described ground wire hole (31) is the through hole of supporting plate (3) normal direction;
Described ground wire hole (31) is provided with bolt (32), and ground wire hole (31) have nut (33), and described nut (33) matches with bolt (32), and nut (33) has ground wire (331).
3. grounding resistance measurement servicing unit according to claim 1, is characterized in that: described supporting plate (3) is outer is provided with the anti-corrosion sheath (4) matching with its shape, and the material of described anti-corrosion sheath (4) is rubber.
4. grounding resistance measurement servicing unit according to claim 2, is characterized in that: described supporting plate (3) is welded and fixed with welded plate (2).
5. grounding resistance measurement servicing unit according to claim 2, is characterized in that: described supporting plate (3) is integrated with welded plate (2).
6. grounding resistance measurement servicing unit according to claim 5, is characterized in that: between the face of described supporting plate (3) and face, be provided with chamfering.
7. grounding resistance measurement servicing unit according to claim 6, is characterized in that: described face of weld (11) is plane, the rectangular slab of described welded plate (2) for matching with it.
8. grounding resistance measurement servicing unit according to claim 6, is characterized in that: described face of weld (11) is the face of cylinder, the arc notch board of described welded plate (2) for matching with it.
9. grounding resistance measurement servicing unit according to claim 8, is characterized in that: on described welded plate (2) and supporting plate (3), scribble vaseline.
10. grounding resistance measurement servicing unit according to claim 9, it is characterized in that: described supporting plate (3) is long 63mm, wide 40mm, high 4.8mm Steel material, described welded plate (2) is the Steel material of long 30mm, wide 40mm, high 4.8mm, described ground wire hole (31) diameter is 16mm, the center of circle in ground wire hole (31) is positioned at apart from left and right end face 20mm, and distance of center circle is from 21mm place, outer face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638957.XU CN203561696U (en) | 2013-10-16 | 2013-10-16 | Auxiliary device for ground resistance measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638957.XU CN203561696U (en) | 2013-10-16 | 2013-10-16 | Auxiliary device for ground resistance measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561696U true CN203561696U (en) | 2014-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320638957.XU Expired - Fee Related CN203561696U (en) | 2013-10-16 | 2013-10-16 | Auxiliary device for ground resistance measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527494A (en) * | 2016-01-14 | 2016-04-27 | 上海惠亚铝合金制品有限公司 | Mobile resistance measurement trolley |
-
2013
- 2013-10-16 CN CN201320638957.XU patent/CN203561696U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527494A (en) * | 2016-01-14 | 2016-04-27 | 上海惠亚铝合金制品有限公司 | Mobile resistance measurement trolley |
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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: 20140423 Termination date: 20211016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |