CN217360145U - Portable electric fault patrol instrument - Google Patents
Portable electric fault patrol instrument Download PDFInfo
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- CN217360145U CN217360145U CN202220451868.3U CN202220451868U CN217360145U CN 217360145 U CN217360145 U CN 217360145U CN 202220451868 U CN202220451868 U CN 202220451868U CN 217360145 U CN217360145 U CN 217360145U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
A portable electrical fault patrol instrument comprises an ultrasonic sensing device for carrying out ultrasonic detection on a gap of electrical equipment, a TEV sensing device for detecting a partial discharge signal of the electrical equipment, and a host computer connected with the ultrasonic sensing device and the TEV sensing device through a coaxial cable; the host comprises a panel and a back plate, wherein a connecting plate is obliquely and fixedly arranged on the back plate, the tail end of the connecting plate is hinged with a connecting piece, and an ultrasonic sensing device is inserted in the connecting piece; the connecting piece comprises a connecting piece body, wherein a rotating part which is in running fit with the connecting plate and an inserting part which is in inserting fit with the ultrasonic sensing device are arranged on the connecting piece body. The utility model discloses simple structure, the operation of being convenient for can carry out the office to electrical equipment and put the detection, has improved the power supply reliability, has also improved patrolling and examining personnel's work efficiency simultaneously and has reduced patrolling and examining personnel's intensity of labour.
Description
Technical Field
The utility model relates to an electric power check out test set technical field especially relates to a portable electric fault patrols and examines appearance.
Background
In recent electrical accidents, accidents caused by low-voltage client sides account for more than 50%, the traditional electrical fault patrol measures generally adopt a mode of measuring leakage current and line joint temperature, from the current practical situation, the traditional troubleshooting mode has too much leakage current and false alarm, the fire caused by the low-voltage power distribution system is more concealed and more harmful, and people are often heard of the news such as electric shock caused by electric leakage, the news of the fire caused by electric leakage and the like in daily news reports.
The metal enclosed complete sets of switch equipment such as switch cabinets and the like are common important equipment in power systems, and the safe and reliable operation of the switch equipment determines the reliability and safety of power supply systems and plays a significant role in the power supply systems. However, the internal faults of the switch cabinet are mainly insulation faults, partial discharge can be generated when insulation defects exist in the internal faults, and partial discharge detection is the most sensitive and timely means for reflecting various potential insulation defects in advance and is one of important parameters for reflecting the insulation performance of the switch cabinet, so that the partial discharge detection has a crucial influence on the reliable operation of equipment.
Transient ground voltage and an ultrasonic method are mostly adopted for detecting partial discharge of the high-voltage switch cabinet. Transient Earth Voltage (TEV) method and ultrasonic wave method partial discharge detection are as a non-invasive detection means, and have the advantages of high sensitivity, wide frequency band, convenient operation, non-electric contact and the like for whether the inside of the switch cabinet has a discharge insulation fault.
At present, most of domestic detection equipment for the partial discharge of the switch cabinet is fixed, and has the disadvantages of large volume, complex structure and poor portability. Therefore, a portable electrical fault polling instrument is needed.
SUMMERY OF THE UTILITY MODEL
In view of this, the technical problem to be solved by the present invention is: the portable electrical fault inspection instrument is small in size, simple in structure and convenient to operate, partial discharge detection can be performed on electrical equipment, power supply reliability is improved, work efficiency of inspection personnel is improved, and labor intensity of the inspection personnel is reduced.
In order to solve the technical problem, the technical scheme of the utility model is that:
a portable electrical fault polling instrument comprises an ultrasonic sensing device for carrying out ultrasonic detection on a gap of electrical equipment, a TEV sensing device for detecting a partial discharge signal of the electrical equipment, and a host computer connected with the ultrasonic sensing device and the TEV sensing device through a coaxial cable;
the host comprises a panel and a back plate, a connecting plate is obliquely and fixedly arranged on the back plate, a connecting piece is hinged to the tail end of the connecting plate, and the ultrasonic sensing device is inserted into the connecting piece;
the connecting piece comprises a connecting piece body, wherein a rotating part which is in running fit with the connecting plate and an inserting part which is in inserting fit with the ultrasonic sensing device are arranged on the connecting piece body.
Preferably, an evasion arc surface is arranged on one side, close to the rotating portion, of the connecting piece body.
Preferably, one side of the insertion part is provided with a baffle integrally formed with the connecting piece body.
Preferably, the host is provided with an ultrasonic receiving interface and a TEV receiving interface, the ultrasonic receiving interface is connected with the ultrasonic sensing device, and the TEV receiving interface is connected with the TEV sensing device;
a mainboard is arranged in the host, and a signal acquisition conditioning module, an A/D conversion module, an FPGA acquisition cache module and a microprocessor ARM are arranged on the mainboard;
the signal input end of the signal acquisition and conditioning module is connected with the ultrasonic sensing device and the TEV sensing device respectively through the ultrasonic receiving interface and the TEV receiving interface, the signal output end of the signal acquisition and conditioning module is connected with the FPGA acquisition cache module through the A/D conversion module, the FPGA acquisition cache module is connected with the microprocessor ARM through a high-speed bus, and the digital quantity output end of the microprocessor ARM is connected with the signal acquisition and conditioning module.
Preferably, the ultrasonic sensing device comprises an ultrasonic sensor, a wave-gathering antenna is fixedly mounted on the outer side of the ultrasonic sensor, and a mounting part matched with the insertion part for use is arranged on the outer side of the ultrasonic sensor;
the installation part is provided with an ultrasonic wave sending interface, and the ultrasonic wave sending interface is connected with the ultrasonic wave receiving interface.
Preferably, a display screen and an operation key are arranged on the panel, and the display screen and the operation key are respectively connected with the microprocessor ARM.
Preferably, one side of the host is provided with a USB interface, a memory card socket and an earphone interface, and the USB interface, the memory card socket and the earphone interface are respectively connected with the microprocessor ARM.
Preferably, a battery is disposed inside the main body.
Preferably, TEV sensing device includes the TEV sensor, one side of TEV sensor is provided with magnetism and adsorbs signal coupling panel, one side of TEV sensor is provided with TEV and sends the interface, TEV send the interface with TEV receives interface connection.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
through the utility model discloses in, be provided with ultrasonic sensing device, TEV sensing device, host computer, the host computer can be simultaneously through ultrasonic sensing device, TEV sensing device, uses ultrasonic detection method and transient state ground voltage detection method to detect the location partial discharge fault point, obtains signal strength and pulse count through the analysis calculation, combines analysis maximum reduction erroneous judgement with ultrasonic amplitude simultaneously to the realization is to the accurate judgement and the location of partial discharge fault, convenient to use.
The host comprises a back plate, a connecting plate is fixedly installed on the back plate, a connecting piece is hinged to the connecting plate, an ultrasonic sensing device is inserted into the connecting piece, the host and the ultrasonic sensing device are connected through the connecting piece, the host and the ultrasonic sensing device are conveniently integrated, when an operator uses the ultrasonic detection and host operation device, the host and the ultrasonic sensing device can be operated by one hand, the ultrasonic detection and host operation can be simultaneously carried out, the recording can be carried out by the other hand, the time and the labor are saved, and the operation is convenient; meanwhile, the ultrasonic sensing device is connected with the connecting piece in an inserting mode, so that the ultrasonic sensing device is convenient to disassemble and assemble with other handheld supports, and the gaps far away from the upper portion of the electrical equipment can be independently detected through the handheld supports after the ultrasonic sensing device is disassembled, so that the application range is enlarged, and the using effect is improved.
The utility model discloses in, be provided with on the connecting piece body and avoid the cambered surface, avoid the setting of cambered surface, can prevent that the connecting piece from stopping the connecting piece around connecting plate tip pivoted in-process, colliding with the connecting plate, preventing that the connecting plate from adjusting the operation requirement of ultrasonic sensing device direction through the connecting piece, having improved the result of use.
To sum up, the utility model discloses simple structure, the operation of being convenient for can carry out the office to electrical equipment and put the detection, has improved the reliability of power supply, has also improved patrolling and examining personnel's work efficiency simultaneously and has reduced patrolling and examining personnel's intensity of labour.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic structural diagram of a connecting member according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of another direction of the connecting member in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of an ultrasonic sensing device according to an embodiment of the present invention;
fig. 6 is a schematic structural view of the ultrasonic sensor device according to another embodiment of the present invention;
FIG. 7 is a front view of FIG. 1;
FIG. 8 is a cross-sectional view A-A of FIG. 7;
in the figure:
1. an ultrasonic sensing device; 11. an ultrasonic sensor; 12. a wave-focusing antenna; 13. an installation part; 131. a T-shaped block; 14. an ultrasonic transmission interface;
2. a TEV sensing device; 21. a TEV sensor; 22. a magnetic adsorption signal coupling panel; 23. a TEV send interface;
3. a host; 31. a panel; 32. a back plate; 33. a connecting plate; 34. an ultrasonic receiving interface; 35. a TEV receive interface; 36. a main board; 37. a microprocessor ARM;
4. a connecting member; 41. a connector body; 42. a rotating part; 421. avoiding the arc surface; 43. a plug-in part; 431. a T-shaped groove; 44. a baffle plate;
51. a display screen; 52. operating a key; 53. a USB interface; 54. a memory card socket; 55. an earphone interface; 56. a battery.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 8, the utility model discloses a host computer 3 that is used for carrying out ultrasonic detection's ultrasonic sensing device 1, is used for carrying out the TEV sensing device 2 that detects to the partial discharge signal of electrical equipment, passes through coaxial cable with ultrasonic sensing device 1 and TEV sensing device 2 to the gap of electrical equipment.
The host 3 can simultaneously detect and position the partial discharge fault point by using an ultrasonic detection method and a transient earth voltage detection method through the ultrasonic sensing device 1 and the TEV sensing device 2, obtains the signal intensity and the pulse number through analysis and calculation, and simultaneously reduces misjudgment to the maximum extent by combining with ultrasonic amplitude analysis so as to realize accurate judgment and positioning of the partial discharge fault, and the use is convenient.
The host 3 comprises a panel 31 and a back plate 32, a connecting plate 33 is obliquely and fixedly arranged on the back plate 32, a connecting piece 4 is hinged to the tail end of the connecting plate 33, and the ultrasonic sensing device 1 is inserted into the connecting piece 4.
The connector 4 includes a connector body 41, and the connector body 41 is provided with a rotating portion 42 for rotationally matching with the connecting plate 33 and an inserting portion 43 for inserting and matching with the ultrasonic sensor device 1.
A baffle 44 integrally formed with the connector body 41 is disposed on one side of the insertion part 43, and a T-shaped groove 431 is disposed on the insertion part 43. In the process of plugging the ultrasonic sensing device 1 through the T-shaped groove 431, the baffle 44 blocks the ultrasonic sensing device 1, so that excessive plugging is prevented, and the stability of plugging is improved.
The host 3 is connected with the ultrasonic sensing device 1 through the connecting piece 4, so that the host 3 and the ultrasonic sensing device 1 can be conveniently integrated, when an operator uses the ultrasonic sensing device, the host 3 and the ultrasonic sensing device 1 can be operated by one hand, ultrasonic detection and host operation can be simultaneously carried out, and the record can be carried out by the other hand, so that the ultrasonic sensing device is time-saving, labor-saving and convenient to operate; meanwhile, the ultrasonic sensing device 1 is connected with the connecting piece 4 in an inserting mode, so that the ultrasonic sensing device 1 is convenient to disassemble and assemble with other handheld supports, gaps far away from the electric equipment can be independently detected through the handheld supports after the ultrasonic sensing device 1 is disassembled, the application range is expanded, and the using effect is improved.
Preferably, an evasive arc 421 is provided on the connecting member body 41 on a side close to the rotating portion 42. Avoid the setting of cambered surface 421, can prevent that connecting piece 4 from being around connecting plate 33 tip pivoted in-process, colliding with connecting plate 33, preventing that connecting plate 33 from blockking connecting piece 4, satisfy the operation requirement through connecting piece 4 adjustment ultrasonic sensing device 1 direction, improved the result of use.
The host 3 is provided with an ultrasonic receiving interface 34 and a TEV receiving interface 35, the ultrasonic receiving interface 34 is connected with the ultrasonic sensing device 1, and the TEV receiving interface 35 is connected with the TEV sensing device 2.
The host 3 is internally provided with a mainboard 36, and the mainboard 36 is provided with a signal acquisition and conditioning module, an A/D conversion module, an FPGA acquisition and cache module and a microprocessor ARM 37.
The signal input end of the signal acquisition and conditioning module is respectively connected with the ultrasonic sensing device 1 and the TEV sensing device 2 through the ultrasonic receiving interface 34 and the TEV receiving interface 35, the signal output end of the signal acquisition and conditioning module is connected with the FPGA acquisition cache module through the A/D conversion module, the FPGA acquisition cache module is connected with the microprocessor ARM37 through a high-speed bus, and the digital quantity output end of the microprocessor ARM37 is connected with the signal acquisition and conditioning module.
The panel 31 is provided with a display screen 51 and operation keys 52, and the display screen 51 and the operation keys 52 are respectively connected with the microprocessor ARM 37.
One side of the host 3 is provided with a USB interface 53, a memory card socket 54 and an earphone interface 55, and the USB interface 53, the memory card socket 54 and the earphone interface 55 are respectively connected with a microprocessor ARM 37.
The main body 3 is provided with a battery 56 inside.
The ultrasonic sensing device 1 comprises an ultrasonic sensor 11, a wave-focusing antenna 12 is fixedly mounted on the outer side of the ultrasonic sensor 11, an installation part 13 matched with the insertion part 43 is arranged on the outer side of the ultrasonic sensor 11, a T-shaped block 131 is arranged on the installation part 13, and the T-shaped block 131 is matched with a T-shaped groove 431 to realize insertion of the ultrasonic sensing device 1.
The mounting portion 13 is provided with an ultrasonic transmission interface 14, and the ultrasonic transmission interface 14 is connected to an ultrasonic reception interface 34.
The TEV sensing device 2 comprises a TEV sensor 21, a magnetic adsorption signal coupling panel 22 is arranged on one side of the TEV sensor 21, a TEV sending interface 23 is arranged on one side of the TEV sensor 21, and the TEV sending interface 23 is connected with a TEV receiving interface 35.
The utility model discloses when using, adsorb TEV sensor 21 on electrical equipment's surface or inner wall through magnetism adsorption signal coupling panel 22, handheld host computer 3, peg graft with ultrasonic sensing device 1 through connecting piece 4, and adjust the orientation of gathering ripples antenna 12 on the ultrasonic sensing device 1, after the adjustment is accomplished, handheld host computer 3 drives ultrasonic sensing device 1 and carries out ultrasonic detection to electrical equipment's gap, realize adopting ultrasonic detection method and transient state ground voltage detection method to detect the location partial discharge fault point simultaneously, and is easy to operate.
To sum up, the utility model discloses simple structure, the operation of being convenient for can carry out the office to electrical equipment and put the detection, has improved the reliability of power supply, has also improved patrolling and examining personnel's work efficiency simultaneously and has reduced patrolling and examining personnel's intensity of labour.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A portable electric fault polling instrument is characterized by comprising an ultrasonic sensing device, a TEV sensing device and a host, wherein the ultrasonic sensing device is used for carrying out ultrasonic detection on a gap of electric equipment;
the host comprises a panel and a back plate, a connecting plate is obliquely and fixedly arranged on the back plate, the tail end of the connecting plate is hinged with a connecting piece, and the ultrasonic sensing device is inserted into the connecting piece;
the connecting piece comprises a connecting piece body, wherein a rotating part which is in running fit with the connecting plate and an inserting part which is in inserting fit with the ultrasonic sensing device are arranged on the connecting piece body.
2. The portable electrical fault patrol instrument according to claim 1, wherein an evasive camber is provided on a side of the connector body near the rotating portion.
3. The portable electrical fault patrol instrument as recited in claim 1, wherein a baffle plate integrally formed with the connector body is provided at one side of the insertion part.
4. The portable electrical fault patrol instrument according to claim 1, wherein an ultrasonic receiving interface and a TEV receiving interface are arranged on the host, the ultrasonic receiving interface is connected with the ultrasonic sensing device, and the TEV receiving interface is connected with the TEV sensing device;
a mainboard is arranged in the host, and a signal acquisition conditioning module, an A/D conversion module, an FPGA acquisition cache module and a microprocessor ARM are arranged on the mainboard;
the signal input end of the signal acquisition and conditioning module is connected with the ultrasonic sensing device and the TEV sensing device respectively through the ultrasonic receiving interface and the TEV receiving interface, the signal output end of the signal acquisition and conditioning module is connected with the FPGA acquisition cache module through the A/D conversion module, the FPGA acquisition cache module is connected with the microprocessor ARM through a high-speed bus, and the digital quantity output end of the microprocessor ARM is connected with the signal acquisition and conditioning module.
5. The portable electrical fault patrol instrument according to claim 4, wherein the ultrasonic sensing device comprises an ultrasonic sensor, a wave-gathering antenna is fixedly mounted on the outer side of the ultrasonic sensor, and a mounting part matched with the plug-in part is arranged on the outer side of the ultrasonic sensor;
the installation part is provided with an ultrasonic wave sending interface, and the ultrasonic wave sending interface is connected with the ultrasonic wave receiving interface.
6. The portable electrical fault patrol instrument as claimed in claim 4, wherein a display screen and operation keys are arranged on the panel, and the display screen and the operation keys are respectively connected with the microprocessor ARM.
7. The portable electrical fault patrol instrument according to claim 4, wherein a USB interface, a memory card socket and an earphone interface are provided at one side of the host, and the USB interface, the memory card socket and the earphone interface are respectively connected with the microprocessor ARM.
8. The portable electrical fault patrol instrument of claim 4, wherein a battery is provided inside the main body.
9. The portable electrical fault patrol instrument according to claim 4, wherein the TEV sensing device comprises a TEV sensor, one side of the TEV sensor is provided with a magnetic adsorption signal coupling panel, one side of the TEV sensor is provided with a TEV transmitting interface, and the TEV transmitting interface is connected with the TEV receiving interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220451868.3U CN217360145U (en) | 2022-03-02 | 2022-03-02 | Portable electric fault patrol instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220451868.3U CN217360145U (en) | 2022-03-02 | 2022-03-02 | Portable electric fault patrol instrument |
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| CN217360145U true CN217360145U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220451868.3U Active CN217360145U (en) | 2022-03-02 | 2022-03-02 | Portable electric fault patrol instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117098350A (en) * | 2023-07-24 | 2023-11-21 | 佛山市赛控自动化设备科技有限公司 | Turnover-based detection device and method for electric automation equipment |
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2022
- 2022-03-02 CN CN202220451868.3U patent/CN217360145U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117098350A (en) * | 2023-07-24 | 2023-11-21 | 佛山市赛控自动化设备科技有限公司 | Turnover-based detection device and method for electric automation equipment |
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