CN213240400U

CN213240400U - Novel portable capacitance current tester

Info

Publication number: CN213240400U
Application number: CN202022092869.7U
Authority: CN
Inventors: 张铭凯; 张志林
Original assignee: Hebei Nengheng Electric Technology Co ltd
Current assignee: Jiusheng Zhonghong Hebei Electronic Technology Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-05-18
Anticipated expiration: 2031-04-16

Abstract

The utility model discloses a novel portable capacitance current tester, which comprises a shell, wherein rotary blocks are arranged at the middle positions of the outer surfaces of the two sides of the shell, vertical rods are arranged on the rotary blocks through sleeving, handles of an integrated structure are arranged on the vertical rods, a control bin is arranged at the middle position of the bottom in the shell, a controller connected with a terminal display through a bus is arranged in the control bin, a measurement and control module for detecting capacitance current is arranged at the right side of the control bin, and the measurement and control module is electrically connected with the controller in the control bin; the front end of the shell is provided with a shell cover, a liquid crystal display screen is fixedly installed on the shell cover through sleeving, a wiring port for measuring capacitance is formed in the right side of the liquid crystal display screen, a printer for printing capacitance current data is arranged on the left side of the liquid crystal display screen, the printer is connected with the shell cover through sleeving, a power supply button for starting equipment is arranged below the printer, and the printer and the liquid crystal display screen are both electrically connected with the controller; the utility model is simple in operation, and portable.

Description

Novel portable capacitance current tester

Technical Field

The utility model relates to a power equipment technical field specifically is a novel portable electric capacity current tester.

Background

With the development of national economy, the scale and capacity of urban and rural power networks are gradually increased. Due to the expansion of the power grid, the distributed capacitance of the power supply line to the ground is continuously increased, and the capacitance current of the system is increasingly large. Once a phase-to-ground short-circuit fault occurs in a power supply line, the electric arc at the fault point has a serious influence on a power supply system. At present, in most domestic areas, in order to eliminate the adverse effect on the system caused by the overlarge distributed capacitance, a method of additionally arranging an arc suppression coil is adopted. However, no matter what method is used for realizing arc extinction, whether the distributed capacitance of the system can be accurately measured is a key, because the capacitance current value can be obtained only if the distributed capacitance of the system is known, and the capacitance current value is input into a corresponding arc extinction coil according to the data so as to compensate the overlarge capacitance current of the system.

At present, domestic methods for measuring capacitance and current of a power system comprise a direct grounding method, a neutral point capacitance-on method and a displacement voltage method, the direct grounding method is accurate in measurement but high in danger, a large amount of safety preparation work needs to be carried out before measurement, and multiple departments need to be matched, so that the method is not practical; although the danger is reduced to a certain extent by the neutral point plus capacitor method, the calculated numerical value is inaccurate and poor in precision due to the influence of various factors such as neutral point unbalanced voltage and selected capacitance value, and needs to be repeatedly corrected, especially for a 35KV system, the neutral point offset voltage is very small due to good three-phase balance of the system, and the measurement is almost impossible; the displacement voltage method cannot be used in the occasions without arc suppression coils, the limitation is too large, and the measurement accuracy is poor due to the influence of the change of the operation mode of the power grid on the measurement. Therefore, how to simply and accurately measure the distributed capacitance and the capacitance current value of the system becomes a key problem for ensuring the safe operation of the power system.

Therefore, the inventor provides a novel portable capacitance current tester by integrating various factors.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel portable electric capacity current tester to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a novel portable capacitance current tester comprises a shell, wherein rotary blocks are arranged at the middle positions of the outer surfaces of two sides of the shell, vertical rods are installed on the rotary blocks in a sleeved mode, handles which are of an integrated structure are arranged on the vertical rods, a control bin is arranged at the middle position of the bottom in the shell, a controller which is connected with a terminal display through a bus is arranged in the control bin, a measurement and control module used for detecting capacitance current is arranged on the right side of the control bin, and the measurement and control module is electrically connected with the controller in the control bin; the casing front end is equipped with the cap, there is liquid crystal display through cup jointing fixed mounting on the cap, and the liquid crystal display right side is equipped with the wiring mouth that is used for measuring electric capacity, and the liquid crystal display left side is equipped with the printer that is used for printing electric capacity current data, and the printer links to each other through cup jointing with the cap, and the printer below is equipped with the power button who is used for starting equipment, printer and liquid crystal display all link to each other with the controller electrical property.

The during operation, at first start power button supplies power for equipment, and will need measured electric capacity to pass through the wire and link to each other with wiring accuse, and then the real-time current of electric capacity will be measured to the measurement and control module, and then with data transmission to liquid crystal display on, and print out data through the printer, when equipment is not, with the rotatory piece of handle that cup joints on crossing the montant, make handle and cap be the horizontality, the equipment of being convenient for carry, compare in traditional electric capacity current tester, and the operation is thus simple, and small, light in weight, be convenient for carry and carry out the operation, test speed is fast simultaneously, data accuracy is high, tester's intensity of labour has been alleviateed greatly, and work efficiency is improved.

As a further aspect of the present invention: a fuse used for protecting equipment is arranged above the printer, a reset button used for restarting the equipment is arranged below the wiring port, a loudspeaker giving out a warning is arranged below the reset button, and the reset button, the loudspeaker and the fuse are electrically connected with the controller; when the fuse breaks down, the alarm can be warned through the loudspeaker and replaced, and then the reset button is pressed to restart the equipment and enable the equipment to operate again.

As a further aspect of the present invention: the controller comprises a mainboard, wherein the mainboard is provided with an MCU and a network module, the measurement and control module is connected with the MCU, and the MCU is connected with the liquid crystal display screen through a bus; the device is convenient for mastering the data of the capacitance current in real time, and meanwhile, when each component on the device breaks down, the device can give an alarm through the loudspeaker in time and repair the fault position in time.

As a further aspect of the present invention: the inner wall of the right side of the shell is provided with at least 6 clamping grooves which are uniformly arranged, the clamping grooves and the shell are in an integral structure, the edge of the left side of the shell cover, which is close to the shell, is provided with clamping pins, the quantity of the clamping pins is the same as that of the clamping grooves, the clamping grooves and the shell cover are in an integral structure, and the shell cover are connected in a clamping way through the clamping pins and; convenient to detach and installation, when the inside components and parts of casing broke down simultaneously, the open cap that can be quick was maintained it.

As a further aspect of the present invention: a ventilation hole for providing heat dissipation is formed above the shell and communicated with the outside of the shell, a dustproof net is arranged in the ventilation hole, and the thickness of the dustproof net is the same as that of the shell; be convenient for cool down for the casing is inside through the ventilation hole, also prevented simultaneously that the dust from entering into in the casing.

As a further aspect of the present invention: the bottom of the shell is provided with a supporting base for supporting equipment, the bottom of the supporting base is provided with an anti-skid rubber pad, and the supporting base is connected with the anti-skid rubber pad through an adhesive; the friction between the equipment and the ground can be enhanced, and therefore the overall stability of the equipment is improved.

As a further aspect of the present invention: the surfaces of the handle, the shell and the shell cover are all provided with wear-resistant layers, and the wear-resistant layers are made of aluminum-silicon-chromium-titanium coatings and have the thickness of 0.1-0.3 mm; the wear resistance of the whole equipment can be improved, and the service life of the equipment is prolonged.

Compared with the prior art, the utility model discloses the beneficial effect of following several aspects has:

1. the utility model provides a novel portable capacitance current tester, the structure setting is ingenious and the arrangement is reasonable, the utility model discloses in; the during operation, at first start power button supplies power for equipment, and will need measured electric capacity to pass through the wire and link to each other with wiring accuse, and then the real-time current of electric capacity will be measured to the measurement and control module, and then with data transmission to liquid crystal display on, and print out data through the printer, when equipment is not, with the rotatory piece of handle that cup joints on crossing the montant, make handle and cap be the horizontality, the equipment of being convenient for carry, compare in traditional electric capacity current tester, and the operation is thus simple, and small, light in weight, be convenient for carry and carry out the operation, test speed is fast simultaneously, data accuracy is high, tester's intensity of labour has been alleviateed greatly, and work efficiency is improved.

2. The utility model further through the designed reset button and the loudspeaker, when the fuse breaks down, the fuse can be warned and replaced through the loudspeaker, and then the reset button is pressed to restart the equipment, and the equipment is operated again; through the controller of design, the real-time data of mastering the electric capacity electric current of equipment of being convenient for, when each components and parts on equipment broke down simultaneously, can be timely through the warning of speaker to timely maintain trouble department.

3. The utility model further facilitates the cooling of the inner part of the shell through the vent holes and prevents dust from entering the shell through the designed vent holes and dust screen; the clamping pins and the clamping grooves are designed, so that the disassembly and the assembly are convenient, and meanwhile, when components in the shell are in failure, the shell cover can be quickly opened to be maintained;

4. the utility model further can enhance the friction between the equipment and the ground through the anti-skid rubber pad designed on the supporting base, thereby improving the overall stability of the equipment; through the wearing layer of handle, casing and cap surface design, can improve the holistic wear resistance of equipment, also improved the life of equipment simultaneously.

Drawings

Fig. 1 is a schematic side sectional structural view of a novel portable capacitance current tester.

Fig. 2 is a schematic front structural view of a novel portable capacitance current tester.

Fig. 3 is a block diagram of a control system of a novel portable capacitance current tester.

Fig. 4 is a schematic diagram of a three-dimensional structure of a novel portable capacitance current tester.

In the figure: 1. a housing; 2. a dust screen; 3. a vent hole; 4. a card slot; 5. a shell cover; 6. clamping a needle; 7. a support base; 8. a measurement and control module; 9. a control cabin; 10. an anti-skid rubber pad; 11. rotating the block; 12. a vertical rod; 13. a handle; 14. a fuse; 15. a liquid crystal display screen; 16. a wiring port; 17. a reset button; 18. a speaker; 19. a power button; 20. a printer; 51. a main board; 52. a bus; 53. and (6) an MCU.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-4, a novel portable capacitance current tester comprises a casing 1, wherein rotary blocks 11 are arranged at the middle positions of the outer surfaces of two sides of the casing 1, vertical rods 12 are sleeved on the rotary blocks 11, handles 13 of an integrated structure are arranged on the vertical rods 12, a control cabin 9 is arranged at the middle position of the bottom in the casing 1, a controller connected with a terminal display through a bus 52 is arranged in the control cabin 9, a measurement and control module 8 for detecting capacitance current is arranged on the right side of the control cabin 9, and the measurement and control module 8 is electrically connected with the controller in the control cabin 9; 1 front end of casing is equipped with cap 5, there is liquid crystal display 15 on the cap 5 through cup jointing fixed mounting, and 15 right sides of liquid crystal display are equipped with the wiring mouth 16 that is used for measuring electric capacity, and 15 left sides of liquid crystal display are equipped with the printer 20 that is used for printing electric capacity current data, and printer 20 links to each other through cup jointing with cap 5, and printer 20 below is equipped with power button 19 that is used for starting equipment, printer 20 and liquid crystal display 15 all link to each other with the controller electrical property.

A fuse 14 for protecting equipment is arranged above the printer 20, a reset button 17 for restarting the equipment is arranged below the wiring port 16, a loudspeaker 18 for giving out a warning is arranged below the reset button 17, and the reset button 17, the loudspeaker 18 and the fuse 14 are electrically connected with the controller; the controller comprises a mainboard 51, wherein the mainboard 51 is provided with an MCU53 and a network module, the measurement and control module 8 is connected with an MCU53, and the MCU53 is connected with the liquid crystal display screen 15 through a bus 52; the inner wall of the right side of the shell 1 is provided with at least 6 clamping grooves 4 which are uniformly arranged, the clamping grooves 4 and the shell 1 are of an integral structure, the left side edge of the shell cover 5 is provided with clamping pins 6 which are close to the shell 1 and have the same number as the clamping grooves 4, the clamping grooves 4 and the shell cover 5 are of an integral structure, and the shell 1 and the shell cover 5 are connected in a clamping manner through the clamping pins 6 and the clamping grooves 4;

a ventilation hole 3 for providing heat dissipation is formed above the shell 1 and is communicated with the outside of the shell 1, a dust screen 2 is arranged in the ventilation hole 3, the thickness of the dust screen 2 is the same as that of the shell 1, a supporting base 7 for supporting equipment is arranged at the bottom of the shell 1, and an anti-skid rubber pad 10 is arranged at the bottom of the supporting base 7; the supporting base 7 is connected with the antiskid rubber pad 10 through an adhesive; the surfaces of the handle 13, the shell 1 and the shell cover 5 are all provided with wear-resistant layers, and the wear-resistant layers are made of aluminum-silicon-chromium-titanium coatings and have the thickness of 0.2 mm.

The utility model discloses a theory of operation is:

when the device works, the power button 19 is started to supply power to the device, a capacitor to be measured is connected with a wiring controller through a wire, the real-time current of the capacitor can be measured by the measurement and control module 8, data are transmitted to the liquid crystal display 15 and are printed out through the printer 20, when the device is not used, the rotating block 11 is rotated by the handle 13 sleeved on the vertical rod 12, so that the handle 13 and the shell cover 5 are in a horizontal state, the device is convenient to carry, compared with a traditional capacitor current tester, the device is simple to operate, small in size, light in weight, convenient to carry and operate, high in testing speed and high in data accuracy, the labor intensity of testers is greatly reduced, and the working efficiency is improved;

furthermore, through the designed reset button 17 and the loudspeaker 18, when the fuse breaks down, the fuse can be warned and replaced through the loudspeaker 18, and then the reset button 17 is pressed to restart the equipment and enable the equipment to operate again; the designed controller is convenient for the equipment to master the data of the capacitance current in real time, and meanwhile, when each component on the equipment breaks down, the alarm can be given through the loudspeaker 18 in time, and the fault position can be maintained in time; the clamping pins 6 and the clamping grooves 4 are convenient to detach and mount, and meanwhile, when components in the shell 1 break down, the shell cover 5 can be quickly opened to be maintained; furthermore, through the designed vent holes 3 and the dust screen 2, the interior of the shell 1 can be cooled through the vent holes 3 conveniently, and dust is prevented from entering the shell 1;

furthermore, the friction force between the equipment and the ground can be enhanced through the anti-skid rubber pad 10 designed on the supporting base 7, so that the overall stability of the equipment is improved; and then through the wearing layer of handle 13, casing 1 and the surface design of cap 5, can improve the holistic wearability of equipment, also improved the life of equipment simultaneously.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A novel portable capacitance current tester comprises a shell (1) and is characterized in that rotary blocks (11) are arranged in the middle positions of the outer surfaces of the two sides of the shell (1), vertical rods (12) are installed on the rotary blocks (11) in a sleeved mode, handles (13) which are of an integrated structure are arranged on the vertical rods (12), a control bin (9) is arranged in the middle position of the bottom in the shell (1), a controller which is connected with a terminal display through a bus (52) is arranged in the control bin (9), a measurement and control module (8) used for detecting capacitance current is arranged on the right side of the control bin (9), and the measurement and control module (8) is electrically connected with the controller in the control bin (9); casing (1) front end is equipped with cap (5), through cup jointing fixed mounting have liquid crystal display (15) on cap (5), liquid crystal display (15) right side is equipped with wiring mouth (16) that are used for measuring electric capacity, and liquid crystal display (15) left side is equipped with printer (20) that are used for printing electric capacity electric current data, and printer (20) link to each other through cup jointing with cap (5), and printer (20) below is equipped with power button (19) that are used for starting equipment, printer (20) and liquid crystal display (15) all link to each other with the controller electrical property.

2. The novel portable capacitance current tester as claimed in claim 1, wherein a fuse (14) for protecting equipment is arranged above the printer (20), a reset button (17) for restarting the equipment is arranged below the wiring port (16), a loudspeaker (18) for giving out a warning is arranged below the reset button (17), and the reset button (17), the loudspeaker (18) and the fuse (14) are all electrically connected with the controller.

3. The novel portable capacitance current tester as claimed in claim 2, wherein the controller comprises a main board (51), the main board (51) is provided with an MCU (53) and a network module, the measurement and control module (8) is connected with the MCU (53), and the MCU (53) is connected with the liquid crystal display (15) through a bus (52) in a network manner.

4. The novel portable capacitance current tester as claimed in claim 1, wherein at least 6 clamping grooves (4) are uniformly arranged on the inner wall of the right side of the housing (1), the clamping grooves (4) and the housing (1) are of an integral structure, the clamping pins (6) are arranged at the left side edge of the housing cover (5) close to the housing (1) and have the same number as the clamping grooves (4), the clamping grooves (4) and the housing cover (5) are of an integral structure, and the housing (1) and the housing cover (5) are connected through the clamping pins (6) and the clamping grooves (4) in a clamping manner.

5. The novel portable capacitance current tester as claimed in claim 4, wherein a ventilation hole (3) for providing heat dissipation is arranged above the housing (1) and is communicated with the outside of the housing (1), a dust screen (2) is arranged in the ventilation hole (3), and the thickness of the dust screen (2) is the same as that of the housing (1).

6. The novel portable capacitance current tester as claimed in claim 5, wherein the bottom of the casing (1) is provided with a supporting base (7) for supporting equipment, the bottom of the supporting base (7) is provided with an anti-skid rubber pad (10), and the supporting base (7) is connected with the anti-skid rubber pad (10) through an adhesive.

7. The novel portable capacitance current tester as claimed in any one of claims 1-5, wherein the surfaces of the handle (13), the housing (1) and the housing cover (5) are provided with wear resistant layers, the wear resistant layers are made of aluminum silicon chromium titanium coatings and have a thickness of 0.1-0.3 mm.