CN216209590U - Overhead line fault inspection instrument - Google Patents

Abstract

The utility model discloses an overhead line fault patrol instrument which comprises a signal source module, a working grounding module, a display module and a detection module, wherein the working grounding module, the signal source module, a first signal module, a line fault ground and a first line to be detected are electrically connected to form a first current loop, the working grounding module, the signal source module, a second signal module, the line fault ground and a second line to be detected are electrically connected to form a second current loop, the first signal module is provided with a first identification, the second signal module is provided with a second identification, the display module is in communication connection with the detection module, the detection information of the first current loop is provided with a first identification block, the detection information of the second current loop is provided with a second identification block, the first identification corresponds to the first identification block, and the second identification corresponds to the second identification block. The method can accurately and quickly judge the fault line, and has the characteristics of high operation efficiency and high operation accuracy.

Description

Overhead line fault inspection instrument

Technical Field

The utility model relates to the technical field of power equipment, in particular to an overhead line fault patrol instrument.

Background

In the field of power equipment, an overhead line fault patrol instrument is a common device for detecting faults of overhead lines. The detection device comprises a grounding cable, a detection power supply, a clamp-on ammeter and the like, wherein a current loop is formed by the grounding cable, the detection power supply, the clamp-on ammeter and a detected line, and whether a fault exists in the corresponding detected line is judged by detecting whether current exists in the current loop. The existing detection method comprises the following steps: the clamp-type ammeter is hung on a detected line, the detected lines on two sides of the clamp-type ammeter are respectively a first line to be detected and a second line to be detected, the first line to be detected and the second line to be detected respectively form a first current loop and a second current loop through a grounding cable, a detection power supply and the clamp-type ammeter, direct current pulse signals are respectively sent to the first line to be detected and the second line to be detected through the clamp-type ammeter, the current values of the first current loop and the second current loop are collected, and whether the corresponding detected line fails or not is judged through the current values of the two current loops. Generally, the current value of a detected line with a fault is much larger than that of a detected line without a fault, and the current value of the detected line without a fault is close to zero or equal to zero. However, in actual operation, the analog current loop displayed on the wireless terminal device of the operator is distinguished from the current loop connected to the actual overhead line in the left-right direction, and since the body positions of the operators are different, direction distinguishing errors are easily caused, and thus which current loop fails to be judged accurately and quickly.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to: the utility model provides an overhead line trouble patrols and examines appearance, its can be accurate, quick judgement trouble circuit, and the operating efficiency is high and the operation rate of accuracy is high.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an overhead line fault patrol instrument, including signal source module, work ground module, display module and detection module, detection module include detection module body and with first signal module and the second signal module of detection module body coupling, first signal module is used for being connected with the first circuit electricity that awaits measuring, the second signal module is used for being connected with the second circuit electricity that awaits measuring, work ground module, signal source module, first signal module, the first circuit that awaits measuring and circuit fault ground connection electricity are connected in order to form first current return circuit, work ground module, signal source module, the second signal module, the second circuit that awaits measuring and circuit fault ground connection electricity are connected in order to form second current return circuit, first signal module has first sign, the second signal module has the second sign, the display module is in communication connection with the detection module and can display detection information of the first current loop and the second current loop, the detection information of the first current loop is provided with a first identification block, the detection information of the second current loop is provided with a second identification block, the first identification corresponds to the first identification block, and the second identification corresponds to the second identification block.

Further, the detection signal generated by the signal source module is one of an alternating current signal, a direct current signal, a pulse signal or an inter-frequency signal.

Further, the detection module is a clamp ammeter.

Furthermore, the first signal module and the second signal module are respectively arranged on two opposite side surfaces of the detection module body.

Further, the first signal module comprises a first shell and a first connecting part arranged on the first shell, the first connecting part is used for being electrically connected with the detection module body and the first circuit to be detected, and the first shell is provided with the first mark;

the second signal module comprises a second shell and a second connecting part arranged on the second shell, the second connecting part is used for being electrically connected with the detection module body and the second line to be detected, and the second shell is provided with a second mark.

Furthermore, the first shell and the second shell are both provided with U-shaped grooves, and wire clamps used for clamping the line to be tested are arranged in the U-shaped grooves.

Further, the first signal module and the second signal module are connected with a switching module, and the switching module is used for switching the detection signal between the first signal module and the second signal module.

Furthermore, the detection module is connected with the display module through a wired communication module and/or a wireless communication module.

Further, in the display module, the first identification block and/or the second identification block are/is a direction mark indicating a line fault.

Further, the direction marks are two arrow heads with opposite directions, wherein one arrow head corresponds to the first current loop and the first mark, wherein the other arrow head corresponds to the second current loop and the second mark, or

The direction mark is detection information of the detection module on the first current loop and the second current loop, wherein the detection information of the first current loop corresponds to the first current loop and the first identifier, wherein the detection information of the second current loop corresponds to the second current loop and the second identifier, or

The direction marks are two indicator lights, one of the indicator lights corresponds to the first current loop and the first mark, and the other indicator light corresponds to the second current loop and the second mark.

Further, the first mark, the second mark, the first recognition block and the second recognition block are in the form of one or more of color, shape, pattern, lighting state or lighting color.

Further, the first mark is a first color scale, and the second mark is a second color scale.

Further, the first color scale is yellow, and the second color scale is red.

The utility model has the beneficial effects that: the first identification and the second identification are respectively arranged on the first signal module and the second signal module, and the first identification block and the second identification block of the first current loop and the second current loop on the display module correspond to the first identification and the second identification. The method is favorable for operators to quickly and accurately judge which line to be tested the fault point exists on by observing the identification of the signal module and the identification block of the current loop on the display module, and has the characteristics of high operation accuracy and high operation efficiency.

Drawings

The utility model is explained in more detail below with reference to the figures and examples.

Fig. 1 is a schematic connection diagram of an overhead line fault inspection instrument and an overhead line according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a detection module according to an embodiment of the utility model.

Fig. 3 is a schematic diagram of a display module according to an embodiment of the utility model.

In the figure:

1. a signal source module; 2. grounding the line fault; 3. a display module; 30. a display screen; 31. a first identification block; 32. a second identification block; 4. a detection module; 40. a detection module body; 41. a first signal module; 42. a second signal module; 43. wire clamps; 44. a switching module; 5. a first line to be tested; 6. a second line to be tested; 7. and a working grounding module.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to fig. 3, the overhead line fault inspection device provided by the utility model is used for detecting faults of an overhead line, and comprises a signal source module 1, a working grounding module 7, a display module 3 and a detection module 4. The signal source module 1 is configured to send a detection signal to the detection module 4, where the detection signal generated by the signal source module 1 is one of an ac signal, a dc signal, a pulse signal, or a pilot frequency signal. The display module 3 is in communication connection with the detection module 4, so that the display module 3 can send and receive data signals to and from the detection module 4, and the detection module 4 is controlled by operating the display module 3. The detection module 4 is a clamp ammeter. The detection module 4 is used for being hung on the overhead line and enabling the detection module 4 to be electrically connected with the overhead line. The detection module 4 comprises a detection module body 40 and a first signal module 41 and a second signal module 42 which are connected with the detection module body 40, wherein the first signal module 41 is used for being electrically connected with the first line to be detected 5, and the second signal module 42 is used for being electrically connected with the second line to be detected 6. It can be understood that, referring to fig. 1, a certain point on the overhead line has a fault, the fault point is communicated with the ground, and is called line fault grounding, by hanging the detection module 4 on the overhead line, taking the detection module 4 as a demarcation point, the side B of the overhead line is the first line to be detected 5, the side a of the overhead line is the second line to be detected 6, and by adopting the detection module 4 to respectively detect the first line to be detected 5 and the second line to be detected 6, it can be detected on which line to be detected the fault point exists. The detection module body 40 includes a control circuit board, and the first signal module 41 and the second signal module 42 are electrically connected to the control circuit board. The control circuit board comprises a single chip microcomputer, an AD converter, an amplifier, a booster, a rectifier and a relay, and is used for boosting and stabilizing the circuit and converting an alternating current circuit into a direct current circuit. During measurement, one end of the first line to be measured 5, which is far away from the detection module 4, is grounded through the line fault ground 2, or one end of the second line to be measured 6, which is far away from the detection module 4, is grounded through the line fault ground 2, the signal source module 1 is connected with the detection module 4 and is grounded through the working ground module 7, so that the working ground module 7, the signal source module 1, the first signal module 41, the first line to be measured 5 and the line fault ground 2 are electrically connected to form a first current loop; and the working grounding module 7, the signal source module 1, the second signal module 42, the second line to be tested 6 and the line fault ground 2 are electrically connected to form a second current loop. The detection module 4 transmits detection signals to the first line to be detected 5 and the second line to be detected 6 through the first signal module 41 and the second signal module 42, and then detects current values of the first current loop and the second current loop through the detection module 4 to determine in which current loop a fault point exists. The first signal module 41 has a first identifier, the second signal module 42 has a second identifier, and the display module 3 is communicatively connected to the detection module 4 and is capable of displaying detection information of the first current loop and the second current loop. The analog images of the first current loop and the second current loop are displayed through the display module 3. In the display module 3, the first current loop has a first identification block 31, the second current loop has a second identification block 32, the first identification block 31 corresponds to the first identification, and the second identification block 32 corresponds to the second identification. In this embodiment, the first mark is a color scale having a first color, the second mark is a color scale having a second color, and the first color is different from the second color. The first recognition block 31 has the same color as the first logo, and the second recognition block 32 has the same color as the second logo. Through the comparison of colors, the first current loop corresponding to the first signal module 41 and the second current loop corresponding to the second signal module 42 are distinguished in operation. The display module 3 comprises a display screen 30, and the detection information of the detection module 4 can be displayed on the display screen 30. The displayed content includes, but is not limited to, current values of the first current loop and the second current loop, and an analog first current loop corresponding to the first current loop and an analog second current loop corresponding to the second current loop. It can also be understood that the first identification block 31 on the analog first current loop on the display screen 30 has the same color as the first signal module 41 on the detection module 4, and the second identification block 32 on the analog second current loop on the display screen 30 has the same color as the second signal module 42 on the detection module 4. Therefore, an operator can quickly and accurately judge that the fault point occurs on the first line to be tested 5 or the second line to be tested 6 through the color correspondence, and the method has the characteristics of high operation accuracy and high operation efficiency.

In particular, the detection module 4 further comprises a switching module 44, the first signal module 41 and the second signal module 42 are connected to the switching module 44, and the switching module 44 is configured to switch the detection signal between the first signal module 41 and the second signal module 42. During the operation, the switching module 44 turns on the first current loop to detect the first line 5 to be detected. The second current loop is conducted through the switching module 44 to detect the second line 6 to be detected. The detection module 4 is controlled by the operation switching module 44 to respectively detect the first line under test 5 and the second line under test 6.

Specifically, the first signal module 41 and the second signal module 42 are respectively disposed on two opposite side surfaces of the detection module body 40. The first signal module 41 includes a first housing and a first connecting portion disposed on the first housing, the first connecting portion is used for electrically connecting with the detection module body 40 and the first line 5 to be detected, and the first connecting portion transmits a detection signal to the first line 5 to be detected. The first shell is provided with a first mark. The second signal module 42 includes a second housing and a second connecting portion disposed on the second housing, the second connecting portion is used for electrically connecting the detection module body 40 and the second line to be detected 6, and the second connecting portion transmits a detection signal to the second line to be detected 6. The second housing is provided with a second logo. The first shell and the second shell are provided with U-shaped grooves, and the first connecting portion and the second connecting portion are located at the bottom positions of the corresponding U-shaped grooves respectively. The detection module 4 can be hung on the overhead line, and the overhead line enters from the notch of the U-shaped groove and abuts against the bottom of the U-shaped groove. A wire clamp 43 for clamping the line to be tested is arranged in the U-shaped groove. When overhead line gets into the U-shaped groove and with first connecting portion and second connecting portion butt back, fastener 43 can fix overhead line in the tank bottom position, guarantees that detection module 4 is connected firmly with overhead line. First shell and second shell adopt insulating plastic material to make, first shell and second shell all are the cavity structure, and then make the volume of first shell and second shell great, the surface of first shell and second shell coats the color mark of first color and second color respectively, so that operating personnel corresponds through the color mark of observing first shell and second shell and with first discernment piece 31 and second discernment piece 32 on the display module 3, and then judge that the fault point exists on which treats the measuring line.

Specifically, the working grounding modules 7 all comprise grounding wires, the overhead lines are electrically connected with the ground through the grounding wires, the signal source module 1 is electrically connected with the ground through the grounding wires, so that the first line to be tested 5 forms a first current loop (a grounding cable in the first current loop is not shown) through the grounding wires, the ground, the detection module 4 and the signal source module 1, and the second line to be tested 6 forms a second current loop through the grounding wires, the ground, the detection module 4 and the signal source module 1.

Specifically, the detection module 4 is connected with the display module 3 through a wired communication module and/or a wireless communication module. The wired communication module that adopts of this embodiment, wired communication module are used for transmission and receiving communication signal, and detection module 4's detection data passes through wired communication module and transmits in real time to display module 3 on to supply operating personnel to use and send out detection command.

In the display module 3, the first identification block 31 and the second identification block 32 are direction marks indicating line faults, that is, when faults exist in the first line under test 5, the direction marks can indicate corresponding first current loops on the display screen 30; when a fault is present on the second line under test 6, the direction marker can indicate the corresponding second current loop on the display screen 30. The direction marks are two arrow heads with opposite directions, wherein one arrow head corresponds to the first current loop and the first mark, and the other arrow head corresponds to the second current loop and the second mark. For example, when the first line to be tested 5 has a fault, the arrow lamp corresponding to the first current loop lights up or flashes, so that the operator can obtain information that the first current loop has the fault, and meanwhile, the operator can correspond to the first identifier on the detection module 4, and thus the fault can be quickly identified to exist on the first line to be tested 5. Or, the direction mark is detection information of the detection module 4 for the first current loop and the second current loop, where the detection information of the first current loop corresponds to the first current loop and the first identifier, and the detection information of the second current loop corresponds to the second current loop and the second identifier. Or the direction mark is two indicator lights, wherein one indicator light corresponds to the first current loop and the first mark, and the other indicator light corresponds to the second current loop and the second mark.

Specifically, the first identifier, the second identifier, the first recognition block 31, and the second recognition block 32 are in the form of one or a combination of a plurality of colors, shapes, patterns, light emitting states, or light emitting colors. It can be understood that the first identifier, the second identifier, the first identification block 31 and the second identification block 32 are used for facilitating the identification of the circuit to be detected and the circuit loop by the operator, and can be distinguished by adopting different colors, or different shapes of figures, or different patterns, and different colors and brightnesses, etc., so as to realize the quick identification by the operator. In an embodiment, the first identifier and the second identifier are color marks disposed on the first signaling module 41 and the second signaling module 42. The first identification is a first color scale and the second identification is a second color scale. Wherein, the first color scale is yellow, and the second color scale is red. Namely, the first shell coating is in a yellow color scale, and the second shell coating is in a red color scale. Correspondingly, in the display module 3, the first identification block 31 corresponding to the first current loop is displayed in yellow, and the second identification block 32 is displayed in red. In the process of operation, the first identification and the second identification on the detection module 4 are correspondingly identified through the color of the first identification block 31 or the second identification block 32 on the display module 3, so that the fault on which line to be tested exists can be quickly judged.

The remarkable effects of the embodiment are as follows: the first identification block 31 and the second identification block 32 of the first current loop and the second current loop on the display module 3 are made to correspond to the first identification and the second identification by setting the first identification and the second identification to the first signal module 41 and the second signal module 42, respectively. The method is favorable for operators to quickly and accurately judge which line to be tested the fault point exists on by observing the identification of the signal module and the identification block of the current loop on the display module 3, and has the characteristics of high operation accuracy and high operation efficiency.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims (13)

1. The utility model provides an overhead line fault patrols and examines appearance, includes signal source module (1), work ground connection module (7), display module (3) and detection module (4), detection module (4) including detection module body (40) and with first signal module (41) and second signal module (42) that detection module body (40) are connected, first signal module (41) are used for with first circuit (5) electricity that awaits measuring and are connected, second signal module (42) are used for awaiting measuring circuit (6) electricity with the second and are connected, work ground connection module (7) signal source module (1) first signal module (41) first circuit (5) that awaits measuring and circuit fault ground connection (2) electricity are connected in order to form first current loop, work ground connection module (7) signal source module (1) second signal module (42), The second circuit to be tested (6) and the line fault ground (2) are electrically connected to form a second current loop, and the second current loop is characterized in that the first signal module (41) is provided with a first identifier, the second signal module (42) is provided with a second identifier, the display module (3) is in communication connection with the detection module (4) and can display detection information of the first current loop and the second current loop, in the display module (3), the detection information of the first current loop is provided with a first identification block (31), the detection information of the second current loop is provided with a second identification block (32), the first identifier corresponds to the first identification block (31), and the second identifier corresponds to the second identification block (32).

2. The overhead line fault patrol instrument according to claim 1, wherein the detection signal generated by the signal source module (1) is one of an alternating current signal, a direct current signal, a pulse signal or a pilot frequency signal.

3. The overhead line fault patrol instrument according to claim 1, wherein said detection module (4) is a clamp ammeter.

4. The overhead line fault patrol instrument according to claim 1, wherein the first signal module (41) and the second signal module (42) are respectively disposed on opposite side surfaces of the detection module body (40).

5. The overhead line fault patrol instrument according to claim 1, wherein the first signal module (41) comprises a first housing and a first connection portion arranged on the first housing, the first connection portion being used for electrically connecting the detection module body (40) and the first line under test (5), the first housing being provided with the first identifier;

the second signal module (42) comprises a second shell and a second connecting part arranged on the second shell, the second connecting part is used for being electrically connected with the detection module body (40) and the second line to be detected (6), and the second shell is provided with the second mark.

6. The overhead line fault patrol instrument according to claim 5, wherein each of the first and second housings is provided with a U-shaped groove, and a wire clamp (43) for clamping a line to be tested is arranged in the U-shaped groove.

7. The overhead line fault patrol instrument according to claim 1, wherein a switching module (44) is connected to the first signal module (41) and the second signal module (42), the switching module (44) being configured to switch the detection signal between the first signal module (41) and the second signal module (42).

8. The overhead line fault patrol instrument according to claim 1, wherein said detection module (4) and said display module (3) are connected by a wired communication module and/or a wireless communication module.

9. The overhead line fault patrol instrument according to claim 1, wherein in said display module (3), said first identification block (31) and/or second identification block (32) are direction marks indicating a line fault.

10. The overhead line fault patrol instrument of claim 9, wherein said directional indicia are two oppositely directed arrow lights, one of said arrow lights corresponding to said first current loop and said first indicia and the other of said arrow lights corresponding to said second current loop and said second indicia, or

The direction mark is detection information of the first current loop and the second current loop detected by the detection module (4), wherein the detection information of the first current loop corresponds to the first current loop and the first identifier, wherein the detection information of the second current loop corresponds to the second current loop and the second identifier, or

The direction marks are two indicator lights, one of the indicator lights corresponds to the first current loop and the first mark, and the other indicator light corresponds to the second current loop and the second mark.

11. The overhead line fault patrol instrument according to any one of claims 1 to 10, wherein said first identifier, said second identifier, said first identification block (31) and said second identification block (32) are in the form of one or a combination of colors, shapes, patterns, lighting conditions or lighting colors.

12. The overhead line fault patrol instrument of claim 11, wherein said first identifier is a first color scale and said second identifier is a second color scale.

13. The overhead line fault patrol instrument of claim 12, wherein said first color scale is yellow and said second color scale is red.

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