CN219715517U - Power grid capacitance current tester - Google Patents
Power grid capacitance current tester Download PDFInfo
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- CN219715517U CN219715517U CN202320506080.2U CN202320506080U CN219715517U CN 219715517 U CN219715517 U CN 219715517U CN 202320506080 U CN202320506080 U CN 202320506080U CN 219715517 U CN219715517 U CN 219715517U
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- groove
- box body
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- 238000005452 bending Methods 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to the technical field of power equipment testing, and particularly discloses a power grid capacitance current tester. The box body and the box cover are of a high-low structure, the box body and the box cover are connected in a matched mode through a flange with a bent edge and a bent groove, and a pressing plate is arranged in the box cover; supporting legs capable of being clamped into the clamping grooves are arranged on two sides of the box body: the utility model can play a role in buffering in the use or transportation process, reduces the influence of vibration on the tester, improves the accuracy and protects the precise electronic elements in the tester. The utility model is convenient for splicing and connecting the box cover and the box body and is convenient for operation. The utility model can ensure that the tester tests in the description state, improves the testing accuracy and protects the instrument.
Description
Technical Field
The utility model relates to the technical field of power equipment testing, in particular to a power grid capacitance current tester.
Background
As the capacity of the grid increases, the distributed capacitance on the system lines increases. At present, the power neutral point of the power distribution system in China is not directly grounded, so that when a line is in single-phase grounding, the current flowing through the fault point is actually capacitance current generated by a line-to-ground capacitance. According to statistics, faults of the power distribution network are caused by arcing caused by overlarge capacitance current when a line is in single-phase grounding and the arc cannot be automatically extinguished.
The traditional tester needs to be held by a worker or directly put on the ground when detecting, the tester is easy to encounter slight impact in the use process, and for the high-precision tester, the precision tester is easy to damage some precision electronic components when being impacted.
Disclosure of Invention
The utility model provides a power grid capacitance current tester capable of effectively protecting precise electronic elements in order to make up the defects of the prior art.
The utility model is realized by the following technical scheme:
the utility model provides a power grid capacitance current tester, includes box and case lid, places the tester in the box, its characterized in that, box and case lid are split type structure, box both ends are one high one low, the case lid both ends are supporting one high one low, the high end of box lid is added to the high end of box equals the low end of box lid is added to the low end of box lid, the flange is extended respectively to the box front and back side, the bending groove that matches with the flange outwards is respectively bent to the case lid front and back side; a pressing plate is arranged in the box cover through a plurality of springs; the box cover is provided with a handle, a through hole is formed in the box cover at the handle, the pressing plate is connected with a T-shaped handle, and the handle extends out of the through hole; the side surfaces of the two ends of the box body are respectively provided with a front clamping groove and a rear clamping groove, and supporting feet are hinged in the clamping grooves; the supporting legs comprise supporting rods and bases, the bases are provided with rotating adjusting cylinders, and the adjusting cylinders are in threaded connection with the supporting rods; the clamping groove is provided with a groove matched with the base; the tester is characterized in that a plurality of inserting grooves in the vertical direction are formed in the inner walls of the side surfaces of the two ends of the box body, a pressure spring is arranged in each inserting groove, and matched inserting strips are arranged at the two ends of the tester.
The pressing plate is provided with a concave-convex surface which is matched with the upper surface of the tester, and is coated with sponge.
The handle is provided with a strip hole, and the top end of the handle is positioned in the strip hole.
Two clamping grooves at the same end are communicated through a transverse groove, a connecting rod is arranged in the transverse groove, and the connecting rod connects two supporting rods at the same end to realize synchronous rotation.
When the base is clamped in the groove, the part of the base exposed outside is of a hollow structure.
And a level gauge is arranged on the upper surface of the tester.
The high end and the low end of the box body and the box cover are respectively provided with a matched inclined plane.
The beneficial effects of the utility model are as follows:
according to the utility model, the tester is fixed in the box body in the front-back and left-right directions through the matching of the inserting grooves and the inserting strips, and then the tester is fixed in the up-down direction through the actions of the pressure springs, the pressure plates and the springs, so that the buffer effect can be realized in the use or transportation process, the influence of vibration on the tester is reduced, the accuracy is improved, and the precise electronic elements in the tester are protected.
The split type box cover is arranged, the handle on the box cover can lift the pressing plate upwards, so that the box cover and the box body are conveniently connected in a plugging mode, and the operation is convenient.
The utility model is provided with the supporting leg and the level gauge which are clamped into the clamping groove in a turnover way, and the height of the supporting leg can be adjusted, so that the tester can be ensured to test in a horizontal state, the testing accuracy is improved, and the instrument is also protected.
Drawings
The utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of a front view of a support leg of the present utility model after being retracted;
FIG. 2 is a schematic diagram of a front view of the support frame of the present utility model after the support frame is lowered;
FIG. 3 is a left-hand structural schematic diagram of FIG. 2;
FIG. 4 is a schematic view of the bottom structure of the base of FIG. 3;
FIG. 5 is an enlarged schematic view of the structure of FIG. 3 at C;
FIG. 6 is a schematic cross-sectional view of the structure of FIG. 3 in the direction A-A;
FIG. 7 is an enlarged schematic view of the structure shown at B in FIG. 2;
fig. 8 is an enlarged schematic view of the handle portion of fig. 3.
In the figure, 1 box, 2 case lid, 3 flange, 5 curved groove, 6 grafting groove, 7 pressure spring, 8 grafting strip, 9 spring, 10 clamp plate, 11 sponge, 12 handle, 13 through-holes, 14 handle, 15 rectangular hole, 16 draw-in groove, 17 transverse groove, 18 connecting rod, 19 bracing piece, 20 base, 21 adjustment cylinder, 22 recess, 23 fretwork hole, 24 level gauge, 25 tester.
Detailed Description
The drawings illustrate specific embodiments of the utility model. As shown in fig. 1 to 8, the capacitive current tester for a power grid comprises a box body 1 and a box cover 2, wherein one end of the box body 1 is high, the other end is low (the left low and the right high are taken as an example in the embodiment), the highest point of the lower section is flush with the high ends of the side surfaces of the front side and the rear side of the box body 1, the box cover 2 is also left low and right high, the high end of the box body 1 plus the high end of the box cover 2 is equal to the low end of the box body 1 plus the low end of the box cover 2, that is, when the box cover 2 and the box body 1 are combined together, the two ends of the box body are still high; as shown in fig. 6, for the sake of close fitting, the high and low ends of the case 1 and the case cover 2 are both inclined surfaces for fitting; as shown in fig. 3 and 5, flanges 3 extend outwards from the upper ends of the front and rear sides of the case 1, and the front and rear sides of the case cover 2 are formed with curved grooves 5 matching with the flanges 3.
The inner walls of the two sides of the box body 1 are provided with a plurality of inserting grooves 6 in the vertical direction, the bottom of each inserting groove 6 is provided with a pressure spring 7, the outer walls of the two ends of the tester 25 are provided with inserting strips 8, and the inserting strips 8 are inserted into the inserting grooves 6 to extrude the pressure springs 7.
The inner surface of the case cover 2 is provided with a pressing plate 10 through a plurality of springs 9, the pressing plate 10 is provided with a concave-convex surface which is matched with the upper surface of the tester 25, and the sponge 11 is coated on the pressing plate.
A handle 12 is mounted on the case cover 2, and the handle 12 may be fixed to the case cover 2 or may be hinged to the case cover 2.
A through hole 13 is formed in the case cover 2 between two connecting points of the handle 12 and the case cover 2, a handle 14 is connected to the pressing plate 10, the handle 14 extends out of the through hole 13, the upper end of the handle 14 is of a T shape, if the handle 12 is fixed on the case cover 2, two strip holes 15 are formed in the vertical parts on two sides of the handle 12, and the T-shaped end of the handle 14 is located in the strip holes 15 to play a guiding role.
Two clamping grooves 16 in the up-down direction are respectively formed in the left end and the right end of the box body 1, the two clamping grooves 16 are respectively communicated through a transverse groove 17, a connecting rod 18 is arranged in the transverse groove 17, two ends of the connecting rod 18 are respectively and axially arranged in the two clamping grooves 16, a supporting leg is respectively fixed at the clamping grooves 16 at the two ends of the connecting rod 18, and the supporting leg can be clamped in the clamping grooves 16.
The supporting legs comprise a supporting rod 19 and a base 20, the base 20 is round, a shaft-rotating adjusting cylinder 21 is arranged at the center of the base 20, the supporting rod 19 is in threaded connection with the adjusting cylinder 21, and lifting of the supporting rod 19 can be achieved through the adjusting cylinder 21.
When the support rod 19 rotates to be fully clamped into the clamping groove 16, a groove 22 capable of being clamped into the base 20 is formed in the upper end of the clamping groove 16, only a part of the base 20 can be clamped into the groove 22, the rest part of the base is exposed out, and a hollowed-out hole 23 is formed in the exposed part, so that the support rod 19 can be pulled out as a pull ring.
The cross section of the clamping groove 16 is U-shaped, that is, the whole supporting rod 19 is clamped into the clamping groove 16.
To accommodate the adjustment of the support feet, a level 24 is mounted on the upper surface of the tester 25.
The insertion end of the bent groove 5 may be made in a bell-mouth shape for easy insertion.
The use process is as follows:
opening: holding the handle 12, clamping the handle 14 between fingers, and holding, wherein the pressing plate 10 is separated from the surface of the tester 25 under the action of the handle 14, and then pushing the case cover 2 to the side to open the case cover 2; then pinch or pull the base 20 to rotate the supporting rod 19, fall on the ground, the upper half part of the supporting rod 19 is still clamped in the clamping groove 16 to play a role in stabilizing the supporting rod 19, the level gauge 24 is observed to see whether the tester 25 is horizontal, and if not, the tester 25 is regulated by rotating the regulating cylinder 21 on a certain supporting leg until the tester 25 is horizontal.
Closing: the support rod 19 is rotated in the opposite direction so that the support rod 19 is integrally caught in the catching groove 16 and a part of the base 20 is caught in the recess 22. Then, the handle 12 and the handle 14 are pinched again, the flange 3 is aligned with the curved groove 5, the case cover 2 is pushed in, the curved edge of the flange 3 is contacted and matched with the curved edge of the curved groove 5 until the high end of the case cover 2 is aligned with the high end and the low end is aligned with the low end, then the handle 12 and the handle 14 can be loosened, and the pressure plate 10 can press the tester 25 under the action of the spring 9.
The technical features are known to those skilled in the art except the technical features described in the specification.
Claims (7)
1. The utility model provides a power grid capacitance current tester, includes box (1) and case lid (2), places tester (25) in box (1), characterized by, box (1) and case lid (2) are split type structure, one is high one at box (1) both ends is low, case lid (2) both ends are supporting one high one low, the high end of box lid (2) is added to the high end of box (1) is equal to the low end of box (1) is added to the low end of box lid (2), flange (3) are extended respectively to the front and back side of box (1), outside bending of the front and back side of box lid (2) goes out curved groove (5) with flange (3) are supporting respectively; a pressing plate (10) is arranged in the box cover (2) through a plurality of springs (9); the box cover (2) is provided with a handle (12), a through hole (13) is formed in the box cover (2) at the handle (12), the pressing plate (10) is connected with a T-shaped handle (14), and the handle (14) extends out of the through hole (13); the side surfaces of the two ends of the box body (1) are respectively provided with a front clamping groove and a rear clamping groove (16), and supporting feet are hinged in the clamping grooves (16); the supporting leg comprises a supporting rod (19) and a base (20), the base (20) is provided with an adjusting cylinder (21) which rotates axially, and the adjusting cylinder (21) is in threaded connection with the supporting rod (19); the clamping groove (16) is provided with a groove (22) matched with the base (20); the device is characterized in that a plurality of inserting grooves (6) in the vertical direction are formed in the inner walls of the side surfaces of the two ends of the box body (1), a pressure spring (7) is arranged in each inserting groove (6), and matched inserting strips (8) are arranged at the two ends of the tester (25).
2. Grid capacitive current tester according to claim 1, characterized in that the pressure plate (10) has a concave-convex surface matching the upper surface of the tester (25) and is coated with a sponge (11).
3. Grid capacitive current tester according to claim 1, characterized in that the handle (12) is provided with a strip hole (15), and the top end of the handle (14) is located in the strip hole (15).
4. The electric network capacitance current tester as claimed in claim 1, wherein two clamping grooves (16) at the same end are communicated through a transverse groove (17), a connecting rod (18) is arranged in the transverse groove (17), and the connecting rod (18) connects two supporting rods (19) at the same end to realize synchronous rotation.
5. The electric network capacitance and current tester as claimed in claim 4, wherein the exposed part of the base (20) is a hollow structure when the base is clamped in the groove (22).
6. Grid capacitive current tester according to claim 1, characterized in that the upper surface of the tester (25) is provided with a level (24).
7. The electric network capacitance current tester according to claim 1, wherein the high end and the low end of the box body (1) and the box cover (2) are respectively provided with matched inclined planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320506080.2U CN219715517U (en) | 2023-03-16 | 2023-03-16 | Power grid capacitance current tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320506080.2U CN219715517U (en) | 2023-03-16 | 2023-03-16 | Power grid capacitance current tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219715517U true CN219715517U (en) | 2023-09-19 |
Family
ID=88000942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320506080.2U Active CN219715517U (en) | 2023-03-16 | 2023-03-16 | Power grid capacitance current tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219715517U (en) |
-
2023
- 2023-03-16 CN CN202320506080.2U patent/CN219715517U/en active Active
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