CN215340250U

CN215340250U - Grounding wire grouping tester

Info

Publication number: CN215340250U
Application number: CN202121080676.8U
Authority: CN
Inventors: 巫荣火
Original assignee: Xiamen Zhongtang Electric Co ltd
Current assignee: Xiamen Zhongtang Electric Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-12-28
Anticipated expiration: 2031-05-19

Abstract

The utility model provides a grounding wire grouping tester, which comprises a testing platform, a testing platform and a grounding wire group testing platform, wherein the testing platform comprises a testing platform body; the tester box body is provided with an operation panel on the surface; the ground wire detection system comprises a single chip microcomputer, and a power supply module, a contactor, a voltage acquisition module, a current acquisition module and a plurality of wiring terminals which are respectively connected with the single chip microcomputer; the voltage acquisition module is connected with the wiring terminals in parallel; the wiring terminals are respectively connected with the current acquisition module and the power supply module in series; the contactor is connected with the power supply module. The contactor is a high-power contactor. The utility model has the beneficial effects that: the utility model has the beneficial effects that: can measure the multiunit earth connection simultaneously through setting up a plurality of terminals, improve detection efficiency, be equipped with powerful contactor when multiunit earth connection is experimental simultaneously and can switch one by one, until all done, and can reduce the volume of equipment by a wide margin with the contactor setting in the tester box body.

Description

Grounding wire grouping tester

Technical Field

The utility model relates to the technical field of electrical equipment testing, in particular to a ground wire grouping tester.

Background

At present, a single-phase direct-current resistance tester is used for testing a short-circuit grounding wire, in the testing process, each group of grounding wires need to be connected respectively, the grounding wires are tested after being connected without errors, only one group of grounding wires can be tested at each time, and the testing efficiency is poor. For projects with more grounding wires, firstly, manual wire replacement is complicated, and the workload is large; and the measured value can be compared with a standard value specified by the state after manual conversion, so that the test time is long and the working efficiency is low.

Disclosure of Invention

The utility model aims to provide a grounding wire grouping tester which can test direct current resistances of a plurality of grounding wires at one time and improve the working efficiency.

A grounding wire grouping tester comprises; the tester box body is provided with an operation panel on the surface; the ground wire detection system comprises a single chip microcomputer, and a power supply module, a contactor, a voltage acquisition module, a current acquisition module and a plurality of wiring terminals which are respectively connected with the single chip microcomputer; the voltage acquisition module is connected with the wiring terminals in parallel; the wiring terminals are respectively connected with the current acquisition module and the power supply module in series; the contactor is connected with the power supply module. The contactor is a high-power contactor.

Further, the power module is a constant-current constant-voltage power supply.

Further, a micro printer is arranged in the tester box body, and a printing panel of the micro printer is flush with the operation panel; the micro printer is electrically connected with the single chip microcomputer.

Furthermore, an external interface is arranged on the operation panel; the external interfaces are a U disk interface, an rs232c interface and a USB interface, and the U disk interface, the rs232c interface and the USB interface are respectively and electrically connected with the single chip microcomputer.

Further, still be equipped with the display screen on the operating panel, the display screen is even with the singlechip electricity.

Further, the terminals comprise a current terminal and a voltage terminal; the current wiring terminal and the voltage wiring terminal are respectively electrically connected with the current acquisition module.

After the technical scheme is adopted, the utility model has the beneficial effects that: can measure the multiunit earth connection simultaneously through setting up a plurality of terminals, improve detection efficiency, be equipped with powerful contactor when multiunit earth connection is experimental simultaneously and can switch one by one, until all done, and can reduce the volume of equipment by a wide margin with the contactor setting in the tester box body.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the connection between modules.

1. A tester case; 11. a binding post; 111. a current terminal; 112. a voltage terminal; 12. a display screen; 13. a micro printer; 14. a USB flash disk interface; 15. the rs232c interface; 16; a USB interface; 2. a voltage acquisition module; 3. a current collection module; 4. a power supply module; 5. a contactor; 6. and a single chip microcomputer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

As shown in fig. 1 to 2, the present embodiment discloses a ground wire grouping tester, which includes a tester box 1 and a ground wire detection system; an operation panel is arranged on the tester box body 1, and a display screen and an external interface are arranged on the operation panel; the display screen and the external interface are connected with the singlechip 6. The external interfaces are a USB flash disk interface 14, an rs232c interface 15 and a USB interface 16, and the USB flash disk interface 14, the rs232c interface 15 and the USB interface 16 are respectively connected with the single chip microcomputer 6.

The ground wire detection system comprises a single chip microcomputer 6, a power module 4, a high-power contactor 5, a voltage acquisition module 2, a current acquisition module 3 and a plurality of binding posts 11, wherein the power module 4, the high-power contactor 5, the voltage acquisition module 2, the current acquisition module 3 and the binding posts 11 are respectively connected with the single chip microcomputer 6; the binding posts 11 are arranged on the operation panel, the binding posts 11 are respectively connected with the current acquisition module 3 and the power module 4 in series, the contactor 5 is electrically connected with the power module 4, and the voltage acquisition module 2 is respectively connected with the binding posts 11 in parallel. The binding post 11 comprises a current binding post 111 and a voltage binding post 112, the current binding post 111 and the voltage binding post 112 are respectively connected with the current collection module 3, and the current binding post 111 and the voltage binding post 112 are connected with the voltage collection module 2 in parallel. The power module 4 is a constant-current constant-voltage power supply.

In order to facilitate printing, a micro printer 13 is further arranged in the tester box body 1, a printing panel of the micro printer 13 is flush with the operation panel, and the micro printer 13 is electrically connected with the single chip.

The working principle is as follows:

the grounding wire to be tested is clamped on each binding post, the grounding wire grouping tester is started to test, the voltage acquisition module 2 and the current acquisition module 3 transmit the acquired voltage value and current value to the single chip microcomputer 6, and the single chip microcomputer 6 calculates the resistance value of the grounding wire according to the acquired numerical value. After the first group of grounding wires are tested, the contactor 5 switches the circuit to the next group of grounding wires for testing until all the grounding wires are tested. The micro printer 13 may print the test result of each ground line, or may derive the test result through the usb flash disk interface 14.

To sum up, can test a plurality of earth connections simultaneously through setting up the multiunit terminal, improve efficiency of software testing, set up powerful contactor simultaneously, can realize the switching of each terminal, after a set of terminal has tested, contactor can switch to next a set of test, realizes intelligent test, reduces intensity of labour to improve efficiency of software testing. The test data can be printed by setting the micro printer, and the test result can be exported through a USB flash disk interface and the like for storage.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims

1. The utility model provides a grounding wire is tester in groups which characterized in that: comprises the following steps of;

the tester box body is provided with an operation panel on the surface;

the ground wire detection system comprises a single chip microcomputer, a power module, a contactor, a voltage acquisition module, a current acquisition module and a plurality of connecting terminal columns, wherein the power module, the contactor, the voltage acquisition module, the current acquisition module and the plurality of connecting terminal columns are respectively connected with the single chip microcomputer;

the voltage acquisition module is respectively connected with the plurality of connecting wire columns in parallel; the plurality of groups of binding posts are respectively connected with the current acquisition module and the power supply module in series; the contactor is connected with the power supply module.

2. The ground line grouping tester of claim 1, wherein: the power module is a constant-current constant-voltage power supply.

3. The ground line grouping tester of claim 1, wherein: a micro printer is arranged in the tester box body, and a printing panel of the micro printer is flush with the operation panel; the micro printer is electrically connected with the single chip microcomputer.

4. The ground line grouping tester of claim 1, wherein: the operation panel is provided with an external interface; the external interfaces are a U disk interface, an rs232c interface and a USB interface, and the U disk interface, the rs232c interface and the USB interface are respectively and electrically connected with the single chip microcomputer.

5. The ground line grouping tester of claim 1, wherein: the operation panel is also provided with a display screen which is electrically connected with the single chip microcomputer.

6. The ground line grouping tester of claim 1, wherein: the binding posts comprise a current binding post and a voltage binding post; the current wiring terminal and the voltage wiring terminal are respectively electrically connected with the current acquisition module.