CN211014593U - Phase-splitting low-voltage grounding fault detection device - Google Patents
Phase-splitting low-voltage grounding fault detection device Download PDFInfo
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- CN211014593U CN211014593U CN201921406538.7U CN201921406538U CN211014593U CN 211014593 U CN211014593 U CN 211014593U CN 201921406538 U CN201921406538 U CN 201921406538U CN 211014593 U CN211014593 U CN 211014593U
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Abstract
The utility model relates to a low pressure distribution lines earth fault detects technical field, more specifically relates to split-phase low pressure earth fault detection device, including measuring device and analytical equipment, measuring device is equipped with two at least, and measuring device carries out data measurement with three-phase circuit and zero phase circuit cooperation respectively, and analytical equipment is connected with the binding clip device, carries out data transmission. The utility model provides a phase-splitting low pressure earth fault detection device shortens operating time, improves work efficiency.
Description
Technical Field
The utility model relates to a low pressure distribution lines earth fault detects technical field, more specifically relates to split-phase low pressure earth fault detection device.
Background
In the grid, the low-voltage distribution network is at the end of the power supply system, being the last ring directly associated with the low-voltage users. When a low-voltage distribution network runs, because a line is close to the ground and other objects, branch lines and users are more, and when a single-phase low-voltage grounding fault occurs, the voltage is lower, and the qualified level of the voltage cannot be reached. And the low-voltage grounding fault is not obvious in grounding point phenomenon due to lower line voltage, and a fault point is not easy to find. When the current clamp meter is used for detecting and searching the ground fault, the current clamp meter only has one jaw, and can not simultaneously detect the separated three-phase line and the zero line.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art power meter keep silent small in quantity, can't provide split-phase formula low pressure earth fault detection device to the problem that detached three-phase line and zero line detected simultaneously, shorten operating time, improve work efficiency.
In order to solve the technical problem, the utility model discloses a technical scheme is: the split-phase low-voltage ground fault detection device comprises at least two measuring devices and at least two analyzing devices, wherein the measuring devices are respectively matched with a three-phase circuit and a zero-phase circuit to carry out data measurement, and the analyzing devices are connected with a tong head device to carry out data transmission.
In the scheme, the split-phase low-voltage ground fault detection device is provided with a measuring device and an analyzing device, at least two measuring devices are respectively matched with a three-phase circuit and a zero-phase circuit to carry out current measurement, and then data obtained by measurement are transmitted to the analyzing device to carry out data analysis so as to obtain a measuring result.
In one embodiment, the analysis device is provided with a data processing module, a display module and a data memory module, wherein the display module is connected with the data processing module, the data processing module is used for processing the data measured by the measuring device, the display module is used for displaying the data processing result, and the data memory module is used for recording the measured historical data and comparing the data.
Preferably, the analysis device is provided with a voice playing module. The voice playing module is used for voice broadcasting.
Preferably, the analysis device is provided with a charging module and an energy storage module, the energy storage module provides a working power supply for the analysis device, and the charging module supplies power to the energy storage module.
Preferably, the measuring device is provided with a binding clip, a current mutual inductance module and a voltage measuring module, wherein the binding clip can be connected with a three-phase circuit and a zero-phase circuit, the current mutual inductance module can measure the current, and the voltage measuring module can measure the voltage between the relative phase and the ground and is used for analyzing whether the voltage is in a normal range.
Preferably, the split-phase low-voltage ground fault detection device further comprises a positioning module for positioning the fault detection device.
Preferably, the measuring device is provided with a charging module and an energy storage module, the energy storage module provides a working power supply for the measuring device, and the charging module supplies power to the energy storage module.
Preferably, the measuring device is provided with a wireless transmitting module, the analyzing device is provided with a wireless receiving module, and the measuring device is in wireless connection with the analyzing device.
Preferably, the measuring device is in wired connection with the analysis device.
Preferably, four measuring devices are provided, which are respectively matched with the three-phase circuit and the zero-phase circuit.
Compared with the prior art, the utility model, have following characteristics:
the device is equipped with three-phase circuit and zero phase circuit complex measuring device, can measure the current information that obtains three-phase circuit and zero phase circuit simultaneously, can directly obtain zero sequence current's size, and convenient and fast fixes a position to the earth fault point, shortens operating time, has improved work efficiency, improves the electric energy quality.
Drawings
Fig. 1 is a schematic diagram of module connection according to an embodiment of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Example 1:
as shown in FIG. 1, the utility model provides a phase-splitting low pressure earth fault detection device, including measuring device and analytical equipment, analytical equipment is equipped with data processing module, display module and data memory module, and data processing module is used for handling measuring device measuring data, and display module is used for showing the data processing result. The analysis device is provided with a charging module and an energy storage module, the energy storage module provides a working power supply for the analysis device, the charging module supplies power to the energy storage module, and the data memory module is used for recording measured historical data and comparing the data. The analysis device is also provided with a voice playing module, and the measured result is played in a voice mode, so that the measurement result can be conveniently obtained by the staff.
The measuring device is provided with at least two clamp heads, a current mutual inductance module and a voltage measuring module, the clamp heads can be connected with a three-phase circuit and a zero-phase circuit, and the current mutual inductance module can measure the current. The measuring device is also provided with a charging module and an energy storage module, the energy storage module provides a working power supply for the measuring device, the charging module supplies power for the energy storage module, and the voltage measuring module can measure the voltage between the relative phase and the ground and is used for analyzing whether the voltage is in a normal range.
The measuring device is provided with a wireless sending module, the analysis device is provided with a wireless receiving module, the measuring device is in wireless connection with the analysis device, the wireless connection can realize data transmission at a longer distance, and the space adaptability of the fault detection device is improved.
In this embodiment, the display module of the analysis device is provided with a display screen, the display module is used for displaying the data processing result of the data processing module, and the energy storage modules of the analysis device and the measurement device are rechargeable storage batteries.
The ground fault detection device also comprises a positioning module which is used for positioning the position of the fault detection device and positioning a fault point when measuring and determining the fault.
Example 2:
the embodiment is similar to embodiment 1, and the difference is that in the embodiment, four measuring devices are provided, the measuring devices are in wired connection with the analysis device, and the four measuring devices are respectively connected with the three-phase circuit and the zero-phase circuit and used for measuring current information of the three-phase circuit and the zero-phase circuit, transmitting the measured information to the analysis device through the wired connection circuit, and conveniently and quickly locating a ground fault point according to an analysis result.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The split-phase low-voltage ground fault detection device is characterized by comprising at least two measuring devices and at least two analyzing devices, wherein the measuring devices are respectively matched with a three-phase circuit and a zero-phase circuit to carry out data measurement, and the analyzing devices are connected with a tong head device to carry out data transmission.
2. The split-phase low-voltage ground fault detection device according to claim 1, wherein the analysis device is provided with a data processing module, a display module and a data memory module, the display module is connected with the data processing module, the data processing module is used for processing data measured by the measuring device, the display module is used for displaying data processing results, and the data memory module is used for recording measured historical data and comparing the data.
3. The split-phase low-voltage ground fault detection device according to claim 1, wherein the analysis device is provided with a voice playing module.
4. The split-phase low-voltage ground fault detection device according to claim 2, wherein the analysis device is provided with a charging module and an energy storage module, the energy storage module provides working power for the analysis device, and the charging module supplies power for the energy storage module.
5. The split-phase low-voltage ground fault detection device according to claim 2, wherein the measurement device is provided with a binding clip, a current mutual inductance module and a voltage measurement module, the binding clip can be connected with a three-phase circuit and a zero-phase circuit, and the current mutual inductance module can measure the current.
6. The split-phase low-voltage ground fault detection device according to claim 2, further comprising a positioning module for positioning the fault detection device.
7. The split-phase low-voltage ground fault detection device according to claim 5, wherein the measurement device is provided with a charging module and an energy storage module, the energy storage module provides working power for the measurement device, and the charging module supplies power for the energy storage module.
8. The split-phase low-voltage ground fault detection device according to claim 5, wherein the measurement device is provided with a wireless transmission module, the analysis device is provided with a wireless receiving module, and the measurement device is wirelessly connected with the analysis device.
9. The split-phase low voltage ground fault detection device of claim 5, wherein the measurement device is wired to the analysis device.
10. A split-phase low voltage ground fault detection device according to any one of claims 1 to 7, wherein there are four measuring devices, four of which are respectively associated with a three-phase circuit and a zero-phase line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921406538.7U CN211014593U (en) | 2019-08-27 | 2019-08-27 | Phase-splitting low-voltage grounding fault detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921406538.7U CN211014593U (en) | 2019-08-27 | 2019-08-27 | Phase-splitting low-voltage grounding fault detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531206A (en) * | 2019-08-27 | 2019-12-03 | 广东电网有限责任公司 | Split-phase type low-voltage ground fault detection means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531206A (en) * | 2019-08-27 | 2019-12-03 | 广东电网有限责任公司 | Split-phase type low-voltage ground fault detection means |
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