CN215599264U - Ground resistance detection case and ground resistance check out test set - Google Patents
Ground resistance detection case and ground resistance check out test set Download PDFInfo
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- CN215599264U CN215599264U CN202022996380.2U CN202022996380U CN215599264U CN 215599264 U CN215599264 U CN 215599264U CN 202022996380 U CN202022996380 U CN 202022996380U CN 215599264 U CN215599264 U CN 215599264U
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Abstract
The utility model provides a grounding resistance detection box and a grounding resistance detection device, which comprise a box body, a man-machine interaction module, a detection module, a first test piece and a second test piece; the man-machine interaction module is arranged outside the box body, the detection module is arranged inside the box body, the first test piece and the second test piece are both connected with the detection module, the first test piece is used for assisting in detecting the ground resistance in a grounding mode, and the second test piece is used for detecting the ground resistance in a clamping mode. The problem of current ground resistance detect can't select suitable detection mode in different detection ring border, detect the precision poor is solved. Through setting up man-machine interaction module and detection module respectively in the outside and the inboard of box, realize the ground resistance detection regularization, measure work efficiency height, realize real-time detection ground resistance through man-machine interaction module and detect, realize measuring ground resistance in the distribution environment of reality according to actual conditions through first test piece and second test piece, guarantee the measurement accuracy of preferred.
Description
Technical Field
The utility model belongs to the technical field of electric power and electrical equipment, and particularly relates to a ground resistance detection box and ground resistance detection equipment.
Background
The grounding resistance refers to resistance encountered by current flowing into the ground from the grounding device and then flowing to another grounding body through the ground or spreading to a distant place, and comprises the resistances of the grounding wire and the grounding body, contact resistance between the grounding body and the resistance of the ground, and the resistance of the ground between the two grounding bodies or the resistance of the ground from the grounding body to the infinite distance. The size of the grounding resistance directly reflects the good contact between the electric device and the ground, the scale of a grounding network is projected, and whether a power distribution environment is safe or not is reflected.
Present ground connection detection mode is comparatively single, when facing multi-purpose distribution of electricity environment, needs prepare manifold check out test set, and single detection mode has lower testing result, has better testing result to comparatively manifold distribution of electricity environment for the assurance, and it is more to detect preparation work to detect work efficiency lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and solve the problem that the existing ground resistance detection box cannot ensure the reliable operation of a railway system under the complex environment condition.
In order to achieve the aim, the utility model provides a ground resistance detection box which comprises a box body, a man-machine interaction module, a detection module, a first test piece and a second test piece;
the human-computer interaction module is arranged on the outer side of the box body, the detection module is arranged on the inner side of the box body, the first test piece and the second test piece are both connected with the detection module, the first test piece is used for assisting in detecting the ground resistance in a grounding mode, and the second test piece is used for detecting the ground resistance in a clamping mode.
Optionally, the human-computer interaction module includes a control unit and a display unit;
the display unit is arranged on the outer side of the box body, one end of the control unit is connected with the display unit, the other end of the control unit is connected with the detection module, and the control unit is used for converting a signal sent by the display unit into a control signal to the detection module.
Further, the display unit comprises a touch display screen.
Further, the first test piece comprises a first auxiliary test electrode, a second auxiliary test electrode and a test wire;
the second test piece comprises a first test jaw and a second test jaw.
Optionally, the system further comprises a communication module;
the communication module is connected with the human-computer interaction module so as to remotely monitor the grounding resistance detection box.
Optionally, the system further comprises a power supply module;
the power module is arranged in the box body and used for supplying energy to the grounding resistance detection box.
The utility model provides a grounding resistance detection device, which comprises a grounding resistance detection box and an auxiliary junction box, wherein the grounding resistance detection box is connected with the auxiliary junction box;
the auxiliary junction box is connected with the ground resistance monitoring equipment and used for measuring the ground resistance of the multi-point position measuring point.
Further, the auxiliary junction box includes an isolation module;
the isolation module is used for isolating the ground resistance detection box and the auxiliary junction box.
Optionally, the auxiliary junction box further comprises a microprocessor;
the microprocessor is used for coordinating the grounding resistance detection box and the auxiliary junction box.
Optionally, the auxiliary junction box further comprises a storage module;
the storage module is used for storing the data information received by the auxiliary junction box.
According to the ground resistance detection box and the ground resistance detection equipment, the man-machine interaction module is arranged on the outer side of the box body, the detection module is arranged on the inner side of the box body, the first test piece and the second test piece are both connected with the detection module, the first test piece is used for assisting in detecting the ground resistance in a grounding mode, and the second test piece is used for detecting the ground resistance in a clamping mode. The monitoring work of the grounding resistance detection box is monitored and controlled through the arranged human-computer interaction module, the detection of the grounding resistance is intelligently controlled, the detection result is monitored in real time, and the detection efficiency is improved; the detection module comprises a first detection piece and a second detection piece, wherein the first detection piece and the second detection piece are arranged on the first detection piece, the second detection piece is arranged on the second detection piece, and the first detection piece and the second detection piece are arranged on the second detection piece.
Drawings
Fig. 1 is a schematic structural diagram of a ground resistance detection box according to an embodiment of the present invention;
fig. 2 is a block diagram of a ground resistance detection box according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a ground resistance detection device according to a second embodiment of the present invention;
fig. 4 is a block diagram of an auxiliary junction box according to a second embodiment of the present invention.
1. A ground resistance detection box; 2. an auxiliary junction box; 11. a box body; 12. a human-computer interaction module; 13. a detection module; 14. a first test piece; 15. a second test piece; 16. a communication module; 17. A power supply module; 21. an isolation module; 22. a microprocessor; 23. a storage module; 121. a control unit; 122. a display unit.
Detailed Description
The ground resistance detection box and the ground resistance detection device of the present invention will be described in detail with reference to the accompanying drawings.
Example one
As shown in fig. 1-2, an embodiment of the present invention provides a ground resistance detection box 1, which includes a box body 11, a human-computer interaction module 12, a detection module 13, a first test piece 14, and a second test piece 15; the man-machine interaction module 12 is arranged on the outer side of the box body 11, the detection module 13 is arranged on the inner side of the box body 11, the first test piece 14 and the second test piece 15 are both connected with the detection module 13, the first test piece 14 is used for assisting in detecting the ground resistance in a grounding mode, and the second test piece 15 is used for detecting the ground resistance in a clamping mode.
Specifically, the monitoring work of the grounding resistance detection box 1 is monitored and controlled through the arranged human-computer interaction module 12, the detection of the grounding resistance is intelligently controlled, the detection result is monitored in real time, and the detection efficiency is improved; the detection signal of the detection module 13 can be received through the first test piece 14 and the second test piece 15 which are arranged, and the accuracy of the detection ground resistance of the ground resistance detection box 1 is ensured by selecting the first test piece 14 or the second test piece 15 with better detection accuracy according to the actual detection environment requirement.
The man-machine interaction module 12, the detection module 13, the first test piece 14 and the second test piece 15 are combined in the box body 11, the first test piece 14 and the second test piece 15 which are collected in various detection modes are collected into a whole, detection integrity is improved, and detection working efficiency is improved.
Wherein the first test piece 14 and the second test piece 15 are used to satisfy the auxiliary grounding test method and the clamp test method, respectively. It is worth mentioning that the auxiliary grounding electrode method is suitable for a grounding mode which is convenient for disconnecting the connection with equipment, and can measure single-point or multi-point grounding. The working principle is that a test current is applied between an object to be tested and a far-point auxiliary grounding electrode, the potential difference between the object to be tested and the near-point auxiliary grounding electrode is measured, and the grounding resistance value is calculated through the current and potential difference values. The measuring scheme has less interference and more accurate measurement, but needs to be disconnected with equipment, needs to be provided with two auxiliary grounding electrodes, needs larger operation space for connecting a test line, cannot have electric conductors such as a through bottom line or a metal pipe and the like in an operation area, cannot measure along the river water edge, has better requirement on the measuring environment and has larger measuring workload. The caliper type measuring method is suitable for multipoint grounding, measures the resistance of each grounding point, and can be used for a grounding mode which cannot disconnect the connection with equipment. The working principle is that the ground resistance value is obtained by measuring the loop resistance, firstly, the sensor sends an excitation pulse signal to the ground loop to be measured, the pulse potential is induced on the ground loop to be measured, and the ground loop generates current under the action of the potential. The sensor measures the potential and the current, and the resistance of the measured loop is calculated through the potential and the current. The measuring scheme can be used without disconnecting the connection with equipment or arranging a grounding electrode, is convenient and quick, but can not really measure the resistance value of the grounding resistor in a system which forms a loop without grounding because of the measured loop resistor. The measurement result is the grounding resistance of the down lead, not the grounding resistance of the whole grounding grid, and the measurement scheme can not measure single-point grounding, so that the problem of large interference exists. The first testing piece 14 and the second testing piece 15 which are arranged are controlled by the control detecting module 13, and the first testing piece 14 or the second testing piece 15 is controlled to test according to the actual detection environment, so that the detection result of the better performance under different detection environments is met.
Optionally, the human-computer interaction module 12 includes a control unit 121 and a display unit 122; the display unit 122 is disposed outside the box 11, one end of the control unit 121 is connected to the display unit 122, the other end of the control unit 121 is connected to the detection module 13, and the control unit 121 is configured to convert a signal sent by the display unit 122 into a control signal to the detection module 13.
Further, the display unit 122 includes a touch display screen.
The detection module 13 is controlled by the touch display screen to select a proper first test piece 14 or a proper second test piece 15 to monitor the grounding resistance, so that the intelligent detection operation is realized, and the detection efficiency is improved.
Wherein, the touch display screen realizes that hand control display screen can control detecting element, improves the result of use.
The touch display screen can read measurement data, set parameters and the like in real time, and has various use requirements.
Specifically, the steps of using the ground resistance detection box 1 mainly include: the measurement items and the measurement time are set through the human-computer interaction module 12, the measurement time is set to be detected to arrive, the preset detection items are set to be detected, the test module receives signals, the corresponding first test piece 14 or the corresponding second test piece 15 is assigned to carry out measurement, after the measurement is finished, data are stored and transmitted to the human-computer interaction module 12 to be displayed, and the next measurement instruction is waited.
Wherein, ground resistance detection case 1's main parameters include: the power supply is AC220 volts, the communication mode is RS485, the test voltage is AC48 volts, the maximum test current is 250 milliamperes, the test power supply frequency is 45/55 hertz, the measuring range is 0.001-10 ohms, the working environment temperature is 10-50 ℃ below zero, and the protection grade is IP 56.
Further, the first test piece 14 includes a first auxiliary test electrode, a second auxiliary test electrode, and a test line; the second test piece 15 comprises a first test jaw and a second test jaw.
Wherein, through first auxiliary test electrode, second auxiliary test electrode and test wire, realize the auxiliary earthing electrode method, be applicable to the ground connection detection of being convenient for break off and equipment connection, can measure single-point or multiple spot ground connection detection, the interference is few in the testing process, it is more accurate to measure, realize the caliper formula measuring method through first test pincers and second test pincers, be applicable to multiple spot ground connection, measure the resistance of every ground point, can be used for can not break off the ground connection mode of being connected with equipment, need not to break off the connection with equipment in the testing process, also need not to set up telluric electricity field, convenient and fast.
Optionally, a communication module 16 is further included; the communication module 16 is connected with the human-computer interaction module 12 to remotely monitor the grounding resistance detection box 1.
Specifically, the communication module 16 is arranged, so that the human-computer interaction module 12 can communicate with an external remote monitoring upper computer, that is, the control signal sent by the human-computer interaction module 12 and the stored detection information can be controlled and acquired by the remote upper computer.
The communication module 16 may be a communication interface, and the communication interface may include RS485 or CAN, which satisfies various communication requirements.
Optionally, a power module 17 is further included; the power module 17 is arranged in the box body 11 and used for supplying energy to the grounding resistance detection box 1.
Specifically, by arranging the power supply module 17, the power supply module 17 has the functions of the human-computer interaction module 12 outside the box body 11, the detection module 13 inside the box body 11, the first test piece 14 and the second test piece 15, and the problem of external power connection is avoided.
The power module 17 can be an ac power supply or a dc power supply, and meets various use requirements.
It should be noted that the ground resistance detection box 1 provided by the utility model integrates the human-computer interaction module 12, the detection module 13, the first test piece 14, the second test piece 15, the communication module 16, the power module 17 and the like, when the ground resistance detection box is used independently, the human-computer interaction module 12 is used for selecting measurement items (ground resistance measurement, soil resistivity measurement or ground integrity measurement), and setting measurement time (measurement at certain intervals can be selected, and measurement at certain time can also be selected), and the first test piece 14 or the second test piece 15 can be used for measuring ground resistance to improve measurement efficiency.
Example two
As shown in fig. 3-4, the present embodiment is different from the first embodiment in that the present invention provides a ground resistance detection device, which includes the ground resistance detection box 1 and an auxiliary junction box 2; the auxiliary junction box 2 is connected with the ground resistance monitoring equipment, and the auxiliary junction box 2 is used for measuring the ground resistance of the multi-point measuring point.
Specifically, through the auxiliary junction box 2 that sets up to ground resistance detection case 1 can be connected to auxiliary junction box 2, realizes that ground resistance detection case 1 can measure the ground resistance of multiple spot through auxiliary junction box 2, improves measurement effect.
It is worth mentioning that when the multi-point position detection auxiliary junction box 2 is used in cooperation, at most 19 measurement points can be measured, and only the multi-point position detection auxiliary junction box 2 needs to be connected with a computer to set the measurement points, measurement items of each measurement point, measurement time and the like.
In order to meet the requirement for measuring the grounding resistances of multiple point locations, the auxiliary junction box 2 for multi-point location measurement is developed, the auxiliary junction box 2 for multi-point location measurement cannot be used independently and needs to be matched with the grounding resistance detection box 1 for use, and the grounding resistance detection box 1 matched with the auxiliary junction box 2 for multi-point location measurement can monitor 19 points at most in an online mode.
Further, the auxiliary junction box 2 includes an isolation module 21; the isolation module 21 is used for isolating the grounding resistance detection box 1 and the auxiliary junction box 2.
Optionally, the auxiliary junction box 2 further comprises a microprocessor 22; the microprocessor 22 is used for coordinating the grounding resistance detection box 1 and the auxiliary junction box 2.
Optionally, the auxiliary junction box 2 further comprises a storage module 23; the storage module 23 is used for storing the data information received by the auxiliary junction box 2.
Specifically, the auxiliary junction box 2 for multi-point measurement integrates an isolation module 21, a polling module, a data storage module, a communication module 16, a power module 17, and the like. All test points are isolated from the measuring device when not measuring. The auxiliary junction box 2 for multipoint detection contains a microprocessor 22, and can intelligently coordinate the intelligent ground resistance detection box 1 to carry out detection work.
Wherein, the main parameters of the auxiliary junction box 2 include: the power supply is AC220 volt, the communication mode is RS485, the working environment temperature is minus 10-plus 50 ℃, and the protection grade is IP 56.
Specifically, the steps of using the ground resistance detection box 1 and the auxiliary junction box 2 mainly include: setting a measuring point measuring item and measuring time on a man-machine interaction module 12 of a junction box, setting the junction box to detect that the large measuring time arrives, sending a measuring item and a measuring starting instruction to a detection module 13, starting a corresponding first testing piece 14 or a second testing piece 15 by the detection module 13 receiving the instruction, after the detection of the detection box is finished, uploading detection data to an auxiliary junction box 2 to send a detection finished signal, and storing the data received by the auxiliary junction box 2; one is to continue to send an instruction to the test module to perform the next test point when the test is not completely completed, that is, to return to sending the measurement item and the measurement start instruction to the test module 13, and the test module 13 receives the instruction to start the corresponding first test piece 14 or second test piece 15 to perform polling; and the other method is to completely detect the whole and wait for the next measurement after the test is finished.
In summary, according to the ground resistance detection box 1 and the ground resistance detection device of the present invention, the human-computer interaction module 12 is disposed outside the box body 11, the detection module 13 is disposed inside the box body 11, the first test piece 14 and the second test piece 15 are both connected to the detection module 13, the first test piece 14 is used for assisting in detecting the ground resistance in a grounding manner, and the second test piece 15 is used for detecting the ground resistance in a caliper manner. The monitoring work of the grounding resistance detection box 1 is monitored and controlled through the arranged human-computer interaction module 12, the detection of the grounding resistance is intelligently controlled, the detection result is monitored in real time, and the detection efficiency is improved; the detection signal of the detection module 13 can be received through the first test piece 14 and the second test piece 15 which are arranged, and the accuracy of the detection ground resistance of the ground resistance detection box 1 is ensured by selecting the first test piece 14 or the second test piece 15 with better detection accuracy according to the actual detection environment requirement.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A ground resistance detection box is characterized by comprising a box body (11), a man-machine interaction module (12), a detection module (13), a first test piece (14) and a second test piece (15);
the human-computer interaction module (12) is arranged on the outer side of the box body (11), the detection module (13) is arranged on the inner side of the box body (11), the first test piece (14) and the second test piece (15) are both connected with the detection module (13), the first test piece (14) is used for assisting in grounding detection of the grounding resistance, and the second test piece (15) is used for clamp type detection of the grounding resistance.
2. The ground resistance detection box according to claim 1, characterized in that the human-computer interaction module (12) comprises a control unit (121) and a display unit (122);
the display unit (122) is arranged on the outer side of the box body (11), one end of the control unit (121) is connected with the display unit (122), the other end of the control unit (121) is connected with the detection module (13), and the control unit (121) is used for converting a signal sent by the display unit (122) into a control signal to the detection module (13).
3. The ground resistance detection box according to claim 2, characterized in that the display unit (122) comprises a touch display screen.
4. The ground resistance test box according to claim 1, characterized in that the first test piece (14) comprises a first auxiliary test electrode, a second auxiliary test electrode and a test wire;
the second test piece (15) comprises a first test jaw and a second test jaw.
5. The ground resistance detection box according to claim 1, characterized by further comprising a communication module (16);
the communication module (16) is connected with the human-computer interaction module (12) so as to remotely monitor the grounding resistance detection box (1).
6. The ground resistance detection box according to claim 1, characterized by further comprising a power supply module (17);
the power module (17) is arranged in the box body (11) and used for supplying energy to the grounding resistance detection box (1).
7. A ground resistance detecting apparatus, characterized by comprising the ground resistance detecting box (1) and the auxiliary junction box (2) according to any one of claims 1 to 6;
the auxiliary junction box (2) is connected with the grounding resistance detection box (1), and the auxiliary junction box (2) is used for measuring the grounding resistance of the multi-point measuring point.
8. The ground resistance detection device according to claim 7, characterized in that the auxiliary connection box (2) comprises an isolation module (21);
the isolation module (21) is used for isolating the grounding resistance detection box (1) and the auxiliary junction box (2).
9. The ground resistance detection device according to claim 7, characterized in that the auxiliary connection box (2) further comprises a microprocessor;
the microprocessor is used for coordinating the grounding resistance detection box (1) and the auxiliary junction box (2).
10. The ground resistance detection device according to claim 7, characterized in that the auxiliary junction box (2) further comprises a storage module (22);
the storage module (22) is used for storing the data information received by the auxiliary junction box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022996380.2U CN215599264U (en) | 2020-12-12 | 2020-12-12 | Ground resistance detection case and ground resistance check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022996380.2U CN215599264U (en) | 2020-12-12 | 2020-12-12 | Ground resistance detection case and ground resistance check out test set |
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| Publication Number | Publication Date |
|---|---|
| CN215599264U true CN215599264U (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022996380.2U Active CN215599264U (en) | 2020-12-12 | 2020-12-12 | Ground resistance detection case and ground resistance check out test set |
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| Country | Link |
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| CN (1) | CN215599264U (en) |
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- 2020-12-12 CN CN202022996380.2U patent/CN215599264U/en active Active
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