CN211603533U - Novel calibration of ground connection on resistance tester device - Google Patents
Novel calibration of ground connection on resistance tester device Download PDFInfo
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- CN211603533U CN211603533U CN201922176033.2U CN201922176033U CN211603533U CN 211603533 U CN211603533 U CN 211603533U CN 201922176033 U CN201922176033 U CN 201922176033U CN 211603533 U CN211603533 U CN 211603533U
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Abstract
The utility model provides a novel ground connection on resistance tester calibration device belongs to measurement calibration field, include: the resistance box comprises a resistance box body, a grounding column, a first binding post, a second binding post, a third binding post, a fourth binding post, a fifth binding post, a sixth binding post, a seventh binding post, an eighth binding post, a ninth binding post, a tenth binding post, an eleventh binding post, a twelfth binding post, a thirteenth binding post and a fourteenth binding post, wherein the grounding column, the first binding post, the second binding post, the third binding post, the eleventh binding post, the twelfth binding post, the thirteenth binding post and the fourteenth binding post are positioned on the resistance box body, an insulating plate is fixed at the bottom of the resistance box body, and a first resistor, a. The utility model provides a ground connection on resistance tester calibrating device has solved the not enough drawback of current ground connection on resistance tester calibrating installation resistance measurement scope effectively.
Description
Technical Field
The utility model belongs to measurement calibration field especially relates to a novel ground connection on resistance tester calibration device.
Background
The tester for ground on-resistance is used for measuring the on-resistance between the accessible metal shell and the safe grounding end (wire) of electrical equipment (such as household appliances, electric heaters, medical electrical equipment, measurement, control and laboratory electrical equipment and the like) powered by an alternating current power grid. The grounding on-resistance tester outputs alternating current or direct current to be applied between a metal shell which can be touched by a tested body and a safety grounding end (wire) of the tested body, measures voltage drop generated when the current flows through the tested body, and then obtains the grounding on-resistance value of the tested body according to the ratio of the voltage and the current. At present, the calibration device of the common ground on resistance tester in the market mainly comprises an analog electronic load and a physical resistance box calibration device. The utility model provides a resistance test range can reach 600m omega to the not enough drawback of current ground connection on-resistance tester resistance measuring range of current ground connection on-resistance tester real object resistance calibrating device, the novel resistance test range of ground connection on-resistance tester calibrating device that many measurement parlors used mainly is the JD-2A type ground resistance tester calibrating device of Zhenjiang city measurement experiment factory production, and this calibrating device's resistance measuring range is 0 ~ 120m omega, and the measuring resistance of the many ground connection on-resistance testers of production on the present market can reach 600m omega, has compensatied the not enough of JD-2A type ground resistance tester device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at that the resistance measuring range to current JD-2A type ground resistance tester calibrating installation is 0 ~ 120m omega, can not satisfy resistance measuring range on the market and the ground connection on-resistance tester calibrating installation that 600m omega's ground resistance tester's examination calibration and a resistance testing range that designs out can reach 600m omega.
In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a novel ground connection on-resistance tester calibration device, it includes the resistance box, is located ground connection post, first terminal, second terminal, third terminal, fourth terminal, fifth terminal, sixth terminal, seventh terminal, eighth terminal, ninth terminal, tenth terminal, eleventh terminal, twelfth terminal, thirteenth terminal, fourteenth terminal on the resistance box, fixes the insulation board at resistance box bottom, is fixed in first resistance, second resistance, third resistance, fourth resistance, fifth resistance, sixth resistance on the insulation board.
Further, the grounding column, the first binding column, the second binding column, the third binding column, the fourth binding column, the fifth binding column, the sixth binding column, the seventh binding column, the eighth binding column, the ninth binding column, the tenth binding column, the eleventh binding column, the twelfth binding column, the thirteenth binding column and the fourteenth binding column are copper binding columns, and the bottoms of the grounding column, the first binding column, the second binding column, the third binding column, the fourth binding column, the eighth binding column, the ninth binding column, the tenth binding column, the eleventh binding column, the twelfth binding.
Furthermore, the bottoms of the first binding post and the second binding post are connected with the bottom of the grounding post through a lead; one end of the first resistor is connected with the bottom of the grounding post through a wire, and the other end of the first resistor is connected with the bottoms of the third wiring post and the fourth wiring post through wires; one end of the second resistor is connected with the bottoms of the third binding post and the fourth binding post through a lead, and the other end of the second resistor is connected with the bottoms of the fifth binding post and the sixth binding post through a lead; one end of the third resistor is connected with the bottoms of the fifth binding post and the sixth binding post through a lead, and the other end of the third resistor is connected with the bottoms of the seventh binding post and the eighth binding post through a lead; one end of the fourth resistor is connected with the bottoms of the seventh binding post and the eighth binding post through a lead, and the other end of the fourth resistor is connected with the bottoms of the ninth binding post and the tenth binding post through a lead; one end of a fifth resistor is connected with the bottoms of the ninth binding post and the tenth binding post through a lead, and the other end of the fifth resistor is connected with the bottoms of the eleventh binding post and the twelfth binding post through a lead; one end of a sixth resistor is connected with the bottoms of the eleventh binding post and the twelfth binding post through a conducting wire, and the other end of the sixth resistor is connected with the bottoms of the thirteenth binding post and the fourteenth binding post through a conducting wire; and the positions connected above are all fastened by adopting nuts.
Furthermore, the length of the resistance box body (23) is 800mm, the width is 300mm, and the height is 300 mm.
Further, the insulating plate (22) has a length of 780mm, a width of 290mm and a thickness of 10 mm.
Furthermore, the resistance values of the first resistor (16), the second resistor (17), the third resistor (18), the fourth resistor (19), the fifth resistor (20) and the sixth resistor (21) are all 100m omega, the maximum bearing power is all 100W, and the precision is all 0.2 grade.
Because the utility model relates to an adopted above-mentioned scheme, solved the not enough drawback of current ground connection on resistance tester resistance calibrating installation resistance measurement range in kind effectively.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is a front plan view of the resistance box body (23) according to the embodiment of the present invention.
Fig. 3 is a schematic diagram of an internal circuit structure of the resistance box body (23) according to the embodiment of the present invention.
Fig. 4 is a schematic diagram of an embodiment of the present invention.
Detailed Description
The embodiments of the present invention are explained below by specific examples.
As shown in fig. 1-3, the calibration device of the ground-conduction resistance tester of the present invention comprises a resistor box (23), a ground post COM (1) located on the resistor box (23), a first post V (2), a second post 1(3), a third post a1(4), a fourth post a2(5), a fifth post B1(6), a sixth post B2(7), a seventh post C1(8), an eighth post C2(9), a ninth post D1(10), a tenth post D2(11), an eleventh post E1(12), a twelfth post E2(13), a thirteenth post F1(14), a fourteenth post F2(15), an insulating plate (22) fixed at the bottom of the resistor box (23), and a first resistor (16), a second resistor (17), a third resistor (18), a fourteenth post F2(15) fixed on the insulating plate (22), a second resistor (17), a third resistor (18), a fourth post C) fixed on the insulating plate (12, A fourth resistor (19), a fifth resistor (20), and a sixth resistor (21).
The length of the resistance box body (23) is 800mm, the width is 300mm, and the height is 300 mm.
The insulating plate (22) is 780mm long, 290mm wide and 10mm thick.
The resistance values of the first resistor (16), the second resistor (17), the third resistor (18), the fourth resistor (19), the fifth resistor (20) and the sixth resistor (21) are all 100m omega, the maximum bearing power is all 100W, and the precision is all 0.2 grade.
The grounding post COM (1), the first terminal V (2), the second terminal I (3), the third terminal A1(4), the fourth terminal A2(5), the fifth terminal B1(6), the sixth terminal B2(7), the seventh terminal C1(8), the eighth terminal C2(9), the ninth terminal D1(10), the tenth terminal D2(11), the eleventh terminal E1(12), the twelfth terminal E2(13), the thirteenth terminal F1(14), the fourteenth terminal F2(15) are copper terminals, and the bottoms of the terminals are fixedly connected with the resistance box body through a gasket and a nut.
The bottoms of the first wiring terminal V (2) and the second wiring terminal I (3) are connected with the bottom of the grounding pole COM (1) through a lead; one end of the first resistor (16) is connected with the bottom of the grounding post COM (1) through a lead, and the other end of the first resistor is connected with the bottoms of the third post A1(4) and the fourth post A2(5) through leads; one end of a second resistor (17) is connected with the bottoms of the third binding post A1(4) and the fourth binding post A2(5) through conducting wires, and the other end of the second resistor is connected with the bottoms of the fifth binding post B1(6) and the sixth binding post B2(7) through conducting wires; one end of the third resistor (18) is connected with the bottoms of the fifth terminal B1(6) and the sixth terminal B2(7) through leads, and the other end of the third resistor is connected with the bottoms of the seventh terminal C1(8) and the eighth terminal C2(9) through leads; one end of a fourth resistor (19) is connected with the bottoms of the seventh terminal C1(8) and the eighth terminal C2(9) through leads, and the other end of the fourth resistor is connected with the bottoms of the ninth terminal D1(10) and the tenth terminal D2(11) through leads; one end of a fifth resistor (20) is connected with the bottoms of the ninth terminal D1(10) and the tenth terminal D2(11) through conducting wires, and the other end is connected with the bottoms of the eleventh terminal E1(12) and the twelfth terminal E2(13) through conducting wires; one end of a sixth resistor (21) is connected with the bottoms of the eleventh binding post E1(12) and the twelfth binding post E2(13) through a lead, and the other end is connected with the bottoms of the thirteenth binding post F1(14) and the fourteenth binding post F2(15) through a lead; and the positions connected above are all fastened by adopting nuts.
When calibrating the ground conduction resistance tester, taking calibration of 100m Ω resistance as an example, as shown in fig. 4, first, a ground pole COM (1) of a resistance box body (23) is grounded, then a current output positive terminal I + of the ground conduction resistance tester is connected with a fourth terminal a2(5) on the resistance box body (23), a current output negative terminal I-is connected with a second terminal I (3) on the resistance box body (23), a voltage positive terminal V + of the ground conduction resistance tester is connected with a third terminal a1(4) on the resistance box body (23), a voltage negative terminal V-is connected with a first terminal V (2) on the resistance box body (23), and the ground conduction resistance tester outputs a set current to record a resistance value displayed on the ground conduction resistance tester.
According to the measured resistance value, adjust the terminal that current output and voltage output need be connected, in the calibration of actual ground connection on-resistance tester the utility model discloses the biggest measuring resistance can reach 600m omega, satisfies the measurement calibration of current ground connection on-resistance tester.
The embodiments of the present invention have been described above with reference to specific embodiments. The advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure provided in the specification. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Claims (6)
1. The utility model provides a novel ground connection on resistance tester calibration device which characterized in that includes: resistance box (23), be located ground post COM (1) on resistance box (23), first terminal V (2), second terminal I (3), third terminal A1(4), fourth terminal A2(5), fifth terminal B1(6), sixth terminal B2(7), seventh terminal C1(8), eighth terminal C2(9), ninth terminal D1(10), tenth terminal D2(11), eleventh terminal E1(12), twelfth terminal E2(13), thirteenth terminal F1(14), fourteenth terminal F2(15), fix insulating board (22) in resistance box (23) bottom, and be fixed in first resistance (16) on insulating board (22), second resistance (17), third resistance (18), fourth resistance (19), fifth resistance (20), sixth resistance (21).
2. The novel calibration device for the ground on resistance tester according to claim 1, wherein: the grounding post COM (1), a first post V (2), a second post I (3), a third post A1(4), a fourth post A2(5), a fifth post B1(6), a sixth post B2(7), a seventh post C1(8), an eighth post C2(9), a ninth post D1(10), a tenth post D2(11), an eleventh post E1(12), a twelfth post E2(13), a thirteenth post F1(14) and a fourteenth post F2(15) are all copper posts, and the bottoms of the posts are fixedly connected with the resistance box body through a gasket and a nut.
3. The novel calibration device for the ground on resistance tester as claimed in claim 1 or 2, wherein: the bottoms of the first wiring terminal V (2) and the second wiring terminal I (3) are connected with the bottom of the grounding pole COM (1) through a lead; one end of the first resistor (16) is connected with the bottom of the grounding post COM (1) through a lead, and the other end of the first resistor is connected with the bottoms of the third post A1(4) and the fourth post A2(5) through leads; one end of a second resistor (17) is connected with the bottoms of the third binding post A1(4) and the fourth binding post A2(5) through conducting wires, and the other end of the second resistor is connected with the bottoms of the fifth binding post B1(6) and the sixth binding post B2(7) through conducting wires; one end of the third resistor (18) is connected with the bottoms of the fifth terminal B1(6) and the sixth terminal B2(7) through leads, and the other end of the third resistor is connected with the bottoms of the seventh terminal C1(8) and the eighth terminal C2(9) through leads; one end of a fourth resistor (19) is connected with the bottoms of the seventh terminal C1(8) and the eighth terminal C2(9) through leads, and the other end of the fourth resistor is connected with the bottoms of the ninth terminal D1(10) and the tenth terminal D2(11) through leads; one end of a fifth resistor (20) is connected with the bottoms of the ninth terminal D1(10) and the tenth terminal D2(11) through conducting wires, and the other end is connected with the bottoms of the eleventh terminal E1(12) and the twelfth terminal E2(13) through conducting wires; one end of a sixth resistor (21) is connected with the bottoms of the eleventh binding post E1(12) and the twelfth binding post E2(13) through a lead, and the other end is connected with the bottoms of the thirteenth binding post F1(14) and the fourteenth binding post F2(15) through a lead; and the positions connected above are all fastened by adopting nuts.
4. The novel calibration device for the ground on resistance tester according to claim 1, wherein: the resistance box body (23) is 800mm long, 300mm wide and 300mm high.
5. The novel calibration device for the ground on resistance tester according to claim 1, wherein: the insulating plate (22) is 780mm long, 290mm wide and 10mm thick.
6. The novel calibration device for the ground on resistance tester as claimed in claim 1, wherein the first resistor (16), the second resistor (17), the third resistor (18), the fourth resistor (19), the fifth resistor (20) and the sixth resistor (21) have resistance values of 100m Ω, maximum power of 100W and accuracy of 0.2 level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922176033.2U CN211603533U (en) | 2019-12-01 | 2019-12-01 | Novel calibration of ground connection on resistance tester device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922176033.2U CN211603533U (en) | 2019-12-01 | 2019-12-01 | Novel calibration of ground connection on resistance tester device |
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| Publication Number | Publication Date |
|---|---|
| CN211603533U true CN211603533U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922176033.2U Active CN211603533U (en) | 2019-12-01 | 2019-12-01 | Novel calibration of ground connection on resistance tester device |
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| CN (1) | CN211603533U (en) |
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- 2019-12-01 CN CN201922176033.2U patent/CN211603533U/en active Active
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