CN214278384U - Grounding on-line detection device - Google Patents

Abstract

The utility model provides a grounding on-line detection device, belonging to the technical field of electric power maintenance equipment, comprising a grounding wire component, a voltage generator, a potential monitoring component, a signal transmission module and a power supply module, wherein one end of the grounding wire component is used for being connected with a grounding device to be detected; the voltage generator is used for generating voltage; the potential monitoring assembly is electrically connected with the other end of the grounding wire assembly and the voltage generator respectively and is used for detecting potential difference between the grounding wire assembly and the voltage generator; the signal transmission module is electrically connected with the potential monitoring assembly and is used for transmitting a signal sent by the potential monitoring assembly to the outside; the power supply module is respectively and electrically connected with the voltage generator, the potential monitoring assembly and the signal transmission module. The utility model can detect the grounding device on line in real time or in a short interval period, and avoid the damage of equipment or the occurrence of safety accidents caused by electric leakage and other faults as much as possible; the service life of the grounding device can be pre-judged through data analysis.

Description

Grounding on-line detection device

Technical Field

The utility model belongs to the technical field of the power maintenance equipment, more specifically say, relate to a ground connection on-line measuring device.

Background

The grounding is to connect a part of the power system or the electrical device to the grounding electrode through the grounding wire, and the grounding mainly has the functions of preventing people from being shocked by electricity, equipment and lines from being damaged, preventing fire and lightning, preventing static damage and ensuring normal operation of the power system.

Grounding devices can be classified into working grounds, lightning grounds, and protective grounds. The working ground is set by the operation requirements of the power system (such as neutral point grounding), so that under normal conditions, current flows through the ground electrode for a long time, but the current is unbalanced by a few amperes to a few tens of amperes. When a system has a ground fault, thousands of amperes of working current flows through the grounding electrode, but the current is cut off within 0.05-0.1 s by the relay protection device, and even if the system is backup protection, the action is generally within 1 s. Lightning protection earthing is earthing for eliminating dangerous influence of overvoltage, such as earthing of lightning rod, lightning conductor and lightning arrester. The lightning protection grounding can only flow current under the action of lightning impulse, the amplitude of the lightning current flowing through the lightning protection grounding electrode can reach dozens to hundreds of kiloamperes, but the duration is short. The protective grounding is grounding which is arranged for preventing equipment from being endangered to personal safety due to insulation damage and electrification, such as a metal shell of power equipment, a reinforced concrete pole and a metal tower. The protective earth only allows the flow of current in the event of a breakdown of the insulation of the installation, the value of which can vary within wide limits. When current flows through the three grounding electrodes, the potential of the grounding electrode can be increased, and the safety of people and equipment is affected. For this purpose, the potential increase of the ground electrode must be limited or appropriate safety measures must be taken to ensure the safety of the installation and the personnel.

The wire connected to the grounding electrode is called grounding wire, the grounding electrode and grounding wire are called grounding device, sometimes called grounding for short, and several grounding bodies are connected with each other in the ground to form a grounding network. The point of grounding in the power system is typically a neutral point. The exposed part of the grounding device is connected with the electric device, and is not electrified normally, and can be electrified under the fault condition.

In an electric power facility, a large number of grounding devices exist, and because the existing grounding devices are or contain metal components such as galvanized iron, the existing grounding devices are aged, corroded and damaged after being used for a long time or being influenced by factors such as geological changes, and the underground parts of the grounding devices are generally invisible and difficult to detect once the existing grounding devices fail. Therefore, when electric power is overhauled and maintained, the grounding device needs to be checked regularly to ensure the effectiveness of the grounding device, the existing detection mode is generally to measure by using a universal meter, but the mode can only carry out point-to-point instantaneous measurement generally at a specific time, when the grounding device is damaged or fails, the timely detection is difficult, a dangerous period exists for a period of time, and the damage of equipment or the occurrence of safety accidents caused by faults such as electric leakage and the like are easy to happen.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ground connection on-line measuring device to solve foretell technical problem.

In order to achieve the above object, the utility model adopts the following technical scheme: the ground on-line detection device comprises a ground wire component, a voltage generator, a potential monitoring component, a signal transmission module and a power supply module, wherein one end of the ground wire component is used for being connected with a to-be-detected ground device; the voltage generator is used for generating voltage; the potential monitoring assembly is electrically connected with the other end of the grounding wire assembly and the voltage generator respectively and is used for detecting potential difference between the grounding wire assembly and the voltage generator; the signal transmission module is electrically connected with the potential monitoring assembly and is used for transmitting a signal sent by the potential monitoring assembly to the outside; the power supply module is electrically connected with the voltage generator, the potential monitoring assembly and the signal transmission module respectively and used for supplying power.

In an embodiment of the present invention, the grounding on-line detecting device further includes a data processor and a housing, the data processor is electrically connected to the potential monitoring assembly, the signal transmission module and the power module respectively; the shell voltage generator, the potential monitoring assembly, the power supply module and the data processor are all arranged in the shell.

In one embodiment of the present invention, the ground wire assembly includes a conductive wire, a connecting body and two hinged claws, one end of the conductive wire is connected to the potential monitoring assembly; the connecting body is connected with the other end of the conducting wire and is provided with a first strong magnet; the two hinged claws are respectively hinged with two sides of the connecting body and are respectively provided with a second strong magnet; the two hinged claws are matched with the connecting body, a linear structure which can be completely adsorbed on the surface of the grounding device is formed when the hinged claws are unfolded, and a C-shaped structure is formed when the hinged claws are bent.

In an embodiment of the utility model, be equipped with first holding chamber and second holding chamber in the casing, voltage generator, electric potential monitoring subassembly, power module and data processor all establish in first holding chamber, and second holding chamber one side is equipped with the opening, is equipped with sealed lid on the opening, and inside is equipped with the wire winding claw for the wire conductor is accomodate in the winding.

The utility model discloses an in one embodiment, signal transmission module includes wireless signal emission module, and wireless signal emission module passes through the data line and is connected with data processor, is equipped with the draw-in groove that is used for with wireless signal emission module joint on the casing.

In an embodiment of the present invention, the housing is an insulating structure, and the slot is disposed in the second accommodating cavity; the shell is also provided with a fixing component used for fixing the shell on the grounding device to be detected.

In one embodiment of the present invention, the first strong magnet is embedded on the connecting body, and the exposed surface is flush with the surface of the connecting body; the second strong magnet is embedded on the hinged claw and penetrates through two sides of the hinged claw.

In one embodiment of the present invention, the conductive wire is rotatably connected to the connecting body through the rotating member.

The utility model discloses an in one embodiment, be equipped with the filling hole and the guiding groove that are used for the filling conducting resin on the articulated claw, the filling hole runs through the articulated claw, and the guiding groove is established on articulated claw surface, and communicates with the filling hole.

In an embodiment of the present invention, the outer end of the hinged claw is provided with a suction cup assembly, which is hinged to the outer end of the hinged claw for adjusting the angle between the adsorption plane of the suction cup assembly and the axis of the hinged claw.

The utility model provides a ground connection on-line measuring device's beneficial effect lies in: compared with the prior art, the utility model discloses connect the earth connection subassembly on waiting to detect earthing device, utilize voltage generator to apply voltage to waiting to detect earthing device continuously or discontinuously, monitor the potential difference between waiting to detect earthing device and the voltage generator through the current potential monitoring subassembly, and transmit to data platforms such as outside server or mobile device through signal transmission module, carry out online judgement; if the grounding device to be detected is more intact and effective, the potential difference monitored by the potential monitoring component is approximately the same as or has little difference with the voltage generated by the voltage generator; if the grounding device to be detected is seriously aged, damaged or failed, the potential monitoring component can hardly detect the potential difference or the detected potential difference is greatly different from the voltage generated by the voltage generator, so that whether the grounding device to be detected is intact and effective can be basically and accurately judged. Therefore, the grounding device can be detected online in real time or in a short interval period, and can be judged in time after the grounding device is damaged or loses efficacy, particularly suddenly damaged or loses efficacy, so that the dangerous period caused by the fact that the damage or the failure of the grounding device is not detected in time is shortened as much as possible, and the damage of equipment or the occurrence of safety accidents caused by faults such as electric leakage and the like is avoided as much as possible; meanwhile, the detection data can be uploaded on line and can be stored conveniently, so that the service life of the grounding device can be judged approximately by analyzing the data of the grounding device to be detected, the replacement parts of the grounding device can be prepared in advance, the replacement and the maintenance can be carried out conveniently and timely, and the waiting time of equipment can be shortened.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of an on-line grounding detection device provided in an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structural view of the inside of a housing of the online grounding detection device provided in the embodiment of the present invention, in which electronic devices and their connection relationships are schematically shown;

fig. 3 is a schematic diagram of a half-section structure of a ground wire assembly of the ground on-line detection device provided by the embodiment of the present invention.

Wherein the reference numerals in the figures are as follows:

10. a ground wire assembly; 11. a conductive wire; 12. a linker; 13. a hinged jaw;

14. a first strong magnet; 15. a second strong magnet; 16. a rotating member;

17. filling holes; 18. a guide groove; 19. a sucker component;

20. a voltage generator; 30. a potential monitoring component;

40. a signal transmission module; 41. a data line;

50. a power supply module; 60. a data processor;

70. a housing; 71. a winding claw; 72. a clamping groove.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

It is right now that the utility model provides a pair of ground connection on-line measuring device explains.

Referring to fig. 1 and fig. 2, the grounding on-line detection device provided by the present invention includes a grounding wire assembly 10, a voltage generator 20, a potential monitoring assembly 30, a signal transmission module 40 and a power module 50, wherein one end of the grounding wire assembly 10 is used for connecting with a grounding device to be detected; the voltage generator 20 is used for generating voltage; the potential monitoring assembly 30 is electrically connected with the other end of the grounding wire assembly 10 and the voltage generator 20 respectively and is used for detecting the potential difference between the grounding wire assembly 10 and the voltage generator 20; the signal transmission module 40 is electrically connected with the potential monitoring component 30 and is used for transmitting a signal sent by the potential monitoring component 30 to the outside; the power module 50 is electrically connected to the voltage generator 20, the potential monitoring assembly 30 and the signal transmission module 40, respectively, for supplying power.

Compared with the prior art, the grounding on-line detection device provided by the utility model has the advantages that the grounding line component 10 is connected to the grounding device to be detected, the voltage generator 20 is used for continuously or discontinuously applying voltage to the grounding device to be detected, the potential difference between the grounding device to be detected and the voltage generator 20 is monitored through the potential monitoring component 30, and the potential difference is transmitted to an external server or a data platform such as a mobile device through the signal transmission module 40 for on-line judgment; if the grounding device to be detected is relatively intact and effective, the potential difference monitored by the potential monitoring component 30 is approximately the same as or similar to the voltage generated by the voltage generator 20; if the grounding device to be detected is seriously aged, damaged or failed, the potential monitoring component 30 can hardly detect the potential difference or the detected potential difference is greatly different from the voltage generated by the voltage generator 20, so that whether the grounding device to be detected is intact and effective can be basically and accurately judged. Therefore, the grounding device can be detected online in real time or in a short interval period, and can be judged in time after the grounding device is damaged or loses efficacy, particularly suddenly damaged or loses efficacy, so that the dangerous period caused by the fact that the damage or the failure of the grounding device is not detected in time is shortened as much as possible, and the damage of equipment or the occurrence of safety accidents caused by faults such as electric leakage and the like is avoided as much as possible; meanwhile, the detection data can be uploaded on line and can be stored conveniently, so that the service life of the grounding device can be judged approximately by analyzing the data of the grounding device to be detected, the replacement parts of the grounding device can be prepared in advance, the replacement and the maintenance can be carried out conveniently and timely, and the waiting time of equipment can be shortened.

Referring to fig. 1 and fig. 2, an embodiment of the grounding on-line detecting device provided by the present invention is as follows:

the grounding on-line detection device further comprises a data processor 60 and a shell 70, wherein the data processor 60 is electrically connected with the potential monitoring assembly 30, the signal transmission module 40 and the power supply module 50 respectively; the housing 70, the voltage generator 20, the potential monitoring assembly 30, the power module 50 and the data processor 60 are all disposed within the housing 70.

The data processor 60 can be used to process the data obtained by the electric potential monitoring assembly 30 and transmit the data to the signal transmission module 40 for transmission.

The data processor 60 may also be electrically connected to the voltage generator 20 so as to control the voltage generated by the voltage generator 20 and the frequency and duration of the generated voltage, and to correspond the voltage to the signal monitored by the potential monitoring component 30, which is beneficial to improving the accuracy of the determination.

The voltage monitoring assembly 30 may be a mechanical device capable of sensing a voltage and providing an electrical signal to the data processor 60, or may be an electronic device such as a voltage sensor, or the like.

The voltage generator 20, the potential monitoring assembly 30, the data processor 60 and the power supply module 50 may be selected as desired in existing electronic devices, chips, etc.

The housing 70 can be used to protect the internal components, so as to prevent the internal components from being damaged in a harsh environment, and meanwhile, the internal components can be isolated from external electrical equipment, so that the internal components are prevented from being shocked by the external equipment and from failing.

Referring to fig. 1 and fig. 3, an embodiment of the grounding on-line detecting device provided by the present invention is as follows:

the grounding wire assembly 10 comprises a conductive wire 11, a connector 12 and two hinged claws 13, wherein one end of the conductive wire 11 is connected with the potential monitoring assembly 30; the connecting body 12 is connected with the other end of the conducting wire 11 and is provided with a first strong magnet 14; the two hinged claws 13 are respectively hinged with two sides of the connecting body 12 and are respectively provided with a second strong magnet 15; the two hinged claws 13 are matched with the connecting body 12, and form a linear structure which can be completely adsorbed on the surface of the grounding device when unfolded, and form a C-shaped structure when bent.

The C-shaped structure formed after bending can be clamped at the edge of a relatively flat structure such as a galvanized flat iron, a fin and the like, so that the connection performance of the structure is enhanced.

The connection among the conductive wire 11, the connecting body 12 and the two hinged claws 13 is in a conductive connection form, and the structure can be suitable for all shapes and ferromagnetic grounding devices, can be reliably and primarily connected to any position on the grounding device, is convenient for subsequent reinforcement, and can avoid scratching protective layers such as a zinc coating on the surface of the grounding device.

When the device is unfolded, a three-point adsorption structure is formed by the first strong magnet 14 and the two second strong magnets 15, so that the connecting body 12 and the two hinged claws 13 can be more firmly adsorbed on the surface of the grounding device, and the conducting wire 11 cannot be separated even if being pulled and disturbed by wind power and birds and beasts.

When the connector is bent, the first strong magnet 14 and the second strong magnet 15 can form an adsorption force which is perpendicular to each other or forms an included angle, and the connector 12 and the hinge claw 13 can be prevented from sliding out under the pulling of an external force.

When long-term connection is needed, the connecting body 12 and the hinge claw 13 can be directly adhered to the grounding device by using adhesive tape or glue, so that the possibility of falling off of the connecting body and the hinge claw is reduced.

Referring to fig. 1 and fig. 2, an embodiment of the grounding on-line detecting device provided by the present invention is as follows:

be equipped with first holding chamber and second holding chamber in casing 70, voltage generator 20, electric potential monitoring subassembly 30, power module 50 and data processor 60 all establish at first holding intracavity, and second holding chamber one side is equipped with the opening, is equipped with sealed lid on the opening, and inside is equipped with wire winding claw 71 for the electric lead 11 is accomodate in the winding.

The housing 70 is an insulating structure to improve the safety of maintenance personnel, and is beneficial to reducing the influence of the electromagnetic shielding effect on the signal transmission module 40 and improving the quality and the transmission speed of the transmission signal.

The signal transmission module 40 includes a wireless signal transmitting module, the wireless signal transmitting module is connected to the data processor 60 through the data line 41, and the housing 70 is provided with a card slot 72 for being connected to the wireless signal transmitting module.

The wireless signal transmitting module can transmit signals to equipment such as a mobile phone and a monitoring platform, and remote monitoring of the transformer leakage is achieved.

The wireless signal transmitting module is preferably arranged vertically at the edge of the housing 70 and more than 5mm away from the surrounding devices to be free from the distribution parameters. Because the transmission distance of the wireless signal transmitting module is related to the frequency and amplitude of the modulated signal, the transmitting voltage, the sensitivity of the transmitting antenna and the receiver, the receiving and transmitting environment and other factors, a battery with higher voltage can be arranged in the shell 70 as a power supply, so that the influence of the operation of the transformer on the signal is reduced.

In order to better transmit signals, the wireless signal transmitting module can be externally connected through a data line. Therefore, the wireless signal transmitting module can be arranged at a farther position, and the whole device is prevented from being damaged by high-voltage electricity leaked from the transformer.

When the wireless signal transmitting module is used, if the wireless signal transmitting module needs to be arranged at a farther position, the data wire is pulled out; if the wireless signal transmitting module is not required to be arranged at a farther position or needs to be retracted, the wireless signal transmitting module can be clamped on the card slot 72.

The clamping groove 72 is arranged in the second accommodating cavity; the housing 70 is further provided with a fixing assembly for fixing the housing 70 to the grounding device to be tested.

Referring to fig. 1 and fig. 3, an embodiment of the grounding on-line detecting device provided by the present invention is as follows:

the first strong magnet 14 is embedded on the connector 12, and the exposed surface is flush with the surface of the connector 12; the second strong magnet 15 is embedded on the hinge claw 13 and penetrates through two sides of the hinge claw 13.

The structure can ensure that the first strong magnet 14 and the second strong magnet 15 are close enough to the grounding device, so as to play a stronger adsorption role; without affecting the conductive contact of the articulated claw 13 and the connecting body 12 with the earthing device.

Referring to fig. 3, a specific embodiment of the grounding on-line detection device provided by the present invention is as follows:

the conductive wire 11 is rotatably connected to the connecting body 12 by means of a rotating member 16 to avoid the conductive wire 11 from interfering with the position of the connecting body 12 and the hinge claw 13.

Referring to fig. 3, a specific embodiment of the grounding on-line detection device provided by the present invention is as follows:

the hinge claw 13 is provided with a filling hole 17 and a guide groove 18 for filling conductive adhesive, the filling hole 17 penetrates through the hinge claw 13, and the guide groove 18 is arranged on the surface of the hinge claw 13 and communicated with the filling hole 17.

The conductive adhesive is an adhesive which has certain conductivity after being cured or dried. It can connect multiple conductive materials together to form an electrical path between the connected materials. In the electronics industry, conductive adhesives have become an indispensable new material. The variety of the conductive adhesive is various, and the conductive adhesive can be divided into a general conductive adhesive and a special conductive adhesive from the application angle. The general conductive adhesive only has certain requirements on the conductivity and the adhesive bonding strength of the conductive adhesive, and the special conductive adhesive has certain special requirements on the conductivity and the adhesive bonding strength. Such as high temperature resistance, ultra-low temperature resistance, instant curing, anisotropy, transparency and the like. The conductive paste can be classified into silver-based conductive paste, gold-based conductive paste, copper-based conductive paste, carbon-based conductive paste, and the like according to the kind of conductive particles in the conductive paste, and the most widely used conductive paste is silver-based conductive paste.

Because some new-type earthing devices or some parts of the new-type earthing devices may not be ferromagnetic structures, and the first strong magnet 14 and the second strong magnet 15 are difficult to generate firm connection, the shape of the earthing device can be matched by bending the hinged claw 13, the conductive adhesive is connected to the earthing device by the aid of the conductive adhesive, the hinged claw 13 is provided with the filling hole 17 and the guide groove 18, the conductive adhesive can be filled into a contact surface between the hinged claw 13 and the earthing device through an injector or an adhesive gun and the like, reasonable control of the filling amount of the conductive adhesive is facilitated, excessive conductive adhesive is prevented from entering the hinged part between the hinged claw 13 and the connecting body 12 to firmly glue the hinged claw 13 and being difficult to twist, and subsequent use is prevented from being influenced.

Referring to fig. 3, a specific embodiment of the grounding on-line detection device provided by the present invention is as follows:

the outer end of the hinged claw 13 is provided with a sucker component 19, and the sucker component 19 is hinged with the outer end of the hinged claw 13 and used for adjusting the angle between the adsorption plane of the sucker component 19 and the axis of the hinged claw 13.

Set up sucking disc subassembly 19 and can be convenient for hinge 13's temporary connection fixed, be convenient for follow-up adoption conducting resin etc. carry out further connection fixed, sucking disc subassembly 19 also can be conductive structure, perhaps be equipped with conductive structure such as conducting layer with the position of earthing device contact, conductive structure such as this conducting layer is connected with hinge 13 electric conduction to reinforcing electric conductivity.

The suction cup assembly 19 can be connected with the outer end of the hinge claw 13 through a one-way hinge structure, a spherical hinge structure or a universal hinge structure. The sucker components 19 on the two hinged claws 13 can also be mutually attracted, so that the sucker components 19, the two hinged claws 13 and the connecting body 12 are enclosed into an annular structure so as to be conveniently sleeved on some column structures on the grounding device.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. An on-line ground fault detection device, comprising:

one end of the grounding wire component (10) is used for being connected with a grounding device to be detected;

a voltage generator (20) for generating a voltage;

the potential monitoring assembly (30) is respectively electrically connected with the other end of the grounding wire assembly (10) and the voltage generator (20) and is used for detecting the potential difference between the grounding wire assembly (10) and the voltage generator (20);

the signal transmission module (40) is electrically connected with the potential monitoring component (30) and is used for transmitting a signal sent by the potential monitoring component (30) to the outside;

and the power supply module (50) is electrically connected with the voltage generator (20), the potential monitoring assembly (30) and the signal transmission module (40) respectively and used for supplying power.

2. The grounded on-line detector of claim 1, further comprising:

a data processor (60) electrically connected with the potential monitoring assembly (30), the signal transmission module (40) and the power supply module (50), respectively;

the voltage monitoring device comprises a shell (70), wherein the voltage generator (20), the potential monitoring assembly (30), the power supply module (50) and the data processor (60) are all arranged in the shell (70).

3. The grounded in-line detector arrangement of claim 2, wherein the grounded wire assembly (10) comprises:

a conductive wire (11) having one end connected to the potential monitoring unit (30);

the connecting body (12) is connected with the other end of the conducting wire (11) and is provided with a first strong magnet (14);

two hinged claws (13) are respectively hinged with two sides of the connecting body (12) and are respectively provided with a second strong magnet (15);

the two hinged claws (13) are matched with the connecting body (12) to form a linear structure which can be completely adsorbed on the surface of the grounding device when being unfolded, and form a C-shaped structure when being bent.

4. The online ground fault detection device of claim 3, wherein a first accommodating cavity and a second accommodating cavity are formed in the housing (70), the voltage generator (20), the potential monitoring assembly (30), the power module (50) and the data processor (60) are all arranged in the first accommodating cavity, an opening is formed in one side of the second accommodating cavity, a sealing cover is arranged on the opening, and a winding claw (71) is arranged in the second accommodating cavity and used for winding and accommodating the conductive wire (11).

5. The grounded on-line detector of claim 4, further comprising: the signal transmission module (40) comprises a wireless signal transmitting module, the wireless signal transmitting module is connected with the data processor (60) through a data line, and a clamping groove (72) used for being clamped with the wireless signal transmitting module is formed in the shell (70).

6. The grounded on-line detector of claim 5, further comprising: the shell (70) is of an insulating structure, and the clamping groove (72) is arranged in the second accommodating cavity; the shell (70) is also provided with a fixing component for fixing the shell (70) on the grounding device to be detected.

7. The grounded on-line detector of claim 3, further comprising: the first strong magnet (14) is embedded on the connector (12), and the exposed surface of the first strong magnet is flush with the surface of the connector (12); the second strong magnet (15) is embedded on the hinge claw (13) and penetrates through two sides of the hinge claw (13).

8. The grounded on-line detector of claim 3, further comprising: the conductive wire (11) is rotatably connected with the connecting body (12) through a rotating piece (16).

9. The grounded on-line detector of claim 3, further comprising: the hinge joint claw (13) is provided with a filling hole (17) and a guide groove (18) for filling conductive adhesive, the filling hole (17) penetrates through the hinge joint claw (13), and the guide groove (18) is formed in the surface of the hinge joint claw (13) and communicated with the filling hole (17).

10. The grounded on-line detector of claim 3, further comprising: the outer end of the hinge claw (13) is provided with a sucker component (19), the sucker component (19) is hinged to the outer end of the hinge claw (13) and used for adjusting an angle between an adsorption plane of the sucker component (19) and the axis of the hinge claw (13).

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