CN214174594U - Current transformer polarity automatic checkout device - Google Patents
Current transformer polarity automatic checkout device Download PDFInfo
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- CN214174594U CN214174594U CN202022507971.9U CN202022507971U CN214174594U CN 214174594 U CN214174594 U CN 214174594U CN 202022507971 U CN202022507971 U CN 202022507971U CN 214174594 U CN214174594 U CN 214174594U
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- 238000001514 detection method Methods 0.000 claims description 18
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- 239000004973 liquid crystal related substance Substances 0.000 abstract description 7
- 230000005284 excitation Effects 0.000 description 8
- 238000004804 winding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
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- 229910001416 lithium ion Inorganic materials 0.000 description 2
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- 230000005674 electromagnetic induction Effects 0.000 description 1
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- 238000009413 insulation Methods 0.000 description 1
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Abstract
The utility model discloses a current transformer polarity automatic checkout device belongs to the current transformer field. The utility model provides a current transformer polarity automatic checkout device, includes main body cover, main body cover's top surface fixed mounting has display device, main body cover's inside one side fixed mounting has data acquisition device, main body cover's inner wall one side fixed mounting has the socket, main body cover's inner wall opposite side fixed mounting has the terminal, main body cover's inside fixed mounting has the place ahead fixed mounting that is located data acquisition device to have the mount pad. The device can realize integrated wiring, avoids repeated wiring on site, and has high operability and easy operation; the power supply loop adopts constant voltage output, has a charging function, can complete charging by adopting a common charger, and has stable power supply output; the digital liquid crystal module can sample to microampere level, and the accuracy of the equipment is greatly improved.
Description
Technical Field
The utility model relates to a GIS hyperfrequency detection area, more specifically say, relate to a current transformer polarity automatic checkout device.
Background
The current transformer converts a large current on a primary side into a small current on a secondary side through a certain transformation ratio according to the electromagnetic induction principle, and is widely applied to the aspects of relay protection, electric energy metering, remote measurement and control and the like. The basic structure of the current transformer is similar to that of a transformer, the current transformer is also provided with two windings, namely a primary winding or a primary winding and a secondary winding or a secondary winding, insulation is arranged between the two windings, so that electric isolation is realized between the two windings, and the current transformer is required to carry out polarity experiments before handover and overhaul, so that the problem of charge pursuit caused by incorrect operation and wrong metering of a protection device in a relay protection loop and a metering loop due to wrong polarity correction during wiring is prevented, and therefore, the polarity experiments are necessary before commissioning.
The prior art mainly adopts a pointer type universal meter and a dry battery to be combined for use, the dry battery is utilized to communicate with an excitation loop of a mutual inductor to form excitation, and corresponding directions can be displayed on the pointer type universal meter to assist personnel in judging. The defect of the scheme is that the electric quantity of the dry battery is attenuated, so that excitation indication is not obvious, and observation of personnel is influenced; the observation and judgment of personnel directly influences the polarity judgment accuracy rate, and the personnel are required to have higher experience and technical level; the on-site connection of the pointer type multimeter and the dry battery also needs to be installed on site, and the accuracy is influenced due to the conditions of infirm connection, wrong connection and the like.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
Aiming at the problem that the power attenuation of a dry battery in the prior art causes unobvious excitation indication and influences the observation of personnel; the observation and judgment of personnel directly influences the polarity judgment accuracy rate, and the personnel are required to have higher experience and technical level; the on-site connection of the pointer type multimeter and the dry battery also needs to be installed on site, and the accuracy is influenced due to the conditions of infirm connection, wrong connection and the like.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
An automatic polarity detection device for a current transformer comprises a main body shell, wherein a display device is fixedly mounted on the outer surface of the top end of the main body shell, a data acquisition device is fixedly mounted on one side inside the main body shell, a socket is fixedly mounted on one side of the inner wall of the main body shell, a binding post is fixedly mounted on the other side of the inner wall of the main body shell, a mounting seat is fixedly mounted in front of the data acquisition device inside the main body shell, a power supply device is arranged on the top end of the mounting seat, a data processing device is arranged on one side of the power supply device inside the main body shell, fixing bolts are fixedly mounted at four corners of the data processing device, the data processing device is fixedly connected with the main body shell through the fixing bolts, an A/D (analog/digital) circuit conversion is fixedly mounted on one side of the data acquisition device inside the main body shell, the utility model discloses a main body cover's mounting bracket, including main body cover, mounting bracket, controller, the top of mount pad, the top opposite side of mount pad is provided with second splint, one side of mount pad is provided with the knob, the knob rotates with the mount pad to be connected, the spout has been seted up to the surface of mount pad, the inboard fixed mounting of first splint and second splint has the cushion, the bottom fixed mounting of second splint has the slider, slider and spout phase-match, the inside of spout is provided with the screw rod, screw rod and slider threaded connection, the one end and the knob fixed connection of screw rod.
Preferably, the inside fixed mounting of terminal has the contact pin, the surface of main part shell is located the one end fixed mounting of terminal and has solid fixed ring.
Preferably, the inner wall both sides fixed mounting of terminal has the fore-set, the inside of terminal has inserted the joint, the terminal matches with the joint.
Preferably, one end of the connector is fixedly provided with a baffle, one end of the connector, which is positioned on one side of the baffle, is fixedly provided with a wire, one end of the wire is sleeved with a connecting ring, and the connecting ring is in threaded connection with the fixing ring.
Preferably, the outer surface of the joint is provided with a transverse groove, one end of the outer surface of the joint, which is positioned on the transverse groove, is provided with a vertical groove, and the top column is matched with the transverse groove.
Preferably, the top end of the outer surface of the controller is fixedly provided with a display screen, and a plurality of keys are arranged on the outer surface of the controller below the display screen.
Preferably, the outer surface of the controller is provided with an activation button below the key.
Preferably, the mode conversion button is arranged on one side of the outer surface of the controller, which is positioned on the fixing ring.
Preferably, the bottom end of the controller is provided with a first interface, one side of the bottom end of the controller, which is located at the first interface, is provided with a second interface, and one side of the bottom end of the controller, which is located at the second interface, is provided with a third interface.
Preferably, the first interface, the second interface and the third interface have different specifications and sizes.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
the scheme can realize integrated wiring by adopting the device, avoids repeated wiring on site, and has high operability and easy operation; the power supply loop adopts constant voltage output, has a charging function, can complete charging by adopting a common charger, and has stable power supply output; the digital liquid crystal module can sample microampere (volt) level, so that the accuracy of the equipment is greatly improved, the number of field workers is small due to the arranged controller, the controller is convenient to carry, and the polarity test work can be completed by only one tester; the polarity of the current transformer is detected under the condition that the box transformer or the small metering cabinet is inconvenient to test, and the working efficiency can be improved by using the controller; the polarity of the current transformer is detected under the conditions that the working environment is relatively severe and other potential safety hazards exist, and the personal safety of workers can be effectively guaranteed by using the controller.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the structure of the present invention;
FIG. 3 is a block diagram of the system of the present invention;
fig. 4 is a schematic structural view of the mounting base of the present invention;
fig. 5 is an internal structure view of the mounting base of the present invention;
FIG. 6 is a wiring diagram of the terminal of the present invention;
FIG. 7 is a structural schematic of the joint of the present invention;
fig. 8 is a front view of the controller of the present invention;
fig. 9 is a top view of the controller of the present invention.
The reference numbers in the figures illustrate:
1. a main body housing; 2. a display device; 3. a data acquisition device; 4. a socket; 5. a binding post; 6. a mounting seat; 7. a data processing device; 8. A/D line conversion; 9. a mounting frame; 10. a controller; 11. a first splint; 12. a second splint; 13. a knob; 14. a chute; 15. a rubber pad; 16. a slider; 17. a screw; 18. inserting a pin; 19. a fixing ring; 20. a top pillar; 21. a joint; 22. a baffle plate; 23. a connecting ring; 24. a wire; 25. a transverse groove; 26. a vertical slot; 27. a display screen; 28. pressing a key; 29. a start button; 30. a mode switching button; 31. a first interface; 32. a second interface; 33. a third interface; 34. a power supply device.
Detailed Description
The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the present invention; rather than all embodiments. Based on the embodiment of the utility model; all other embodiments obtained by a person skilled in the art without making any inventive step; all belong to the protection scope of the utility model.
Example 1:
referring to fig. 1 to 9, an automatic polarity detection device for a current transformer includes a main body case 1, a display device 2 is fixedly installed on an outer surface of a top end of the main body case 1, a data acquisition device 3 is fixedly installed on one side inside the main body case 1, and the data acquisition device 3 should have the following conditions: the volume is small, the weight is light, and the carrying and the use are convenient; the data acquisition device has high accuracy in data acquisition, can resist external magnetic field interference, has undistorted acquisition amount in the transmission process, is convenient for workers to judge and analyze, a socket 4 is fixedly arranged on one side of the inner wall of the main body shell 1, a binding post 5 is fixedly arranged on the other side of the inner wall of the main body shell 1, a mounting seat 6 is fixedly arranged in front of the data acquisition device 3 in the main body shell 1, a power supply device 34 is arranged at the top end of the mounting seat 6, a data processing device 7 is arranged on one side of the power supply device 34 in the main body shell 1, fixing bolts are fixedly arranged at four corners of the data processing device 7, the data processing device 7 is fixedly connected with the main body shell 1 through the fixing bolts, an A/D circuit conversion 8 is fixedly arranged on one side of the data acquisition device 3 in the main body shell 1, main body housing 1's rear end fixed mounting has mounting bracket 9, controller 10 has been laid to mounting bracket 9's inside, top one side fixed mounting of mount pad 6 has first splint 11, the top opposite side of mount pad 6 is provided with second splint 12, one side of mount pad 6 is provided with knob 13, knob 13 rotates with mount pad 6 to be connected, spout 14 has been seted up to the surface of mount pad 6, the inboard fixed mounting of first splint 11 and second splint 12 has cushion 15, the bottom fixed mounting of second splint 12 has slider 16, slider 16 and 14 phase-matches of spout, the inside of spout 14 is provided with screw rod 17, screw rod 17 and 16 threaded connection of slider, the one end and the knob 13 fixed connection of screw rod 17, current transformer polarity automatic checkout device mainly comprises five parts: power supply unit 34, data acquisition device 3, AD converting circuit 8, data processing apparatus 7 and LCD screen display device 2, power supply unit 34 mainly provides stable DC power supply, for data acquisition, handle and demonstration provide the electric energy, provide the excitation for mutual-inductor excitation circuit, keep providing stable direct current pulse signal source, link to each other current transformer and detection device by terminal 5, at first carry out data acquisition, convert analog model into digital model through AD converting circuit 8 and transmit to data processing apparatus 7 module, show the testing result through liquid crystal display screen at last, power supply unit 34 should possess the following condition: the volume is small, the weight is light, and the carrying and the use are convenient; the system has the function of stabilizing the transmission of the direct current power supply; can charge repeatedly, the work of conveniently going out, when installing power supply unit 34, can rotate the knob 13 of 6 one sides of mount pad, it rotates to drive screw rod 17 through knob 13, slider 16 can drive the second splint 12 of one side and remove to one side along spout 14, pull open the distance between first splint 11 and the second splint 12, then lay power supply unit 34 on mount pad 6, it drives second splint 12 and removes to rotate knob 13 at last, fix power supply unit 34 through first splint 11 and second splint 12, and can adjust the distance of first splint 11 and second splint 12 according to power supply unit's 34 specification, the inboard of first splint 11 and second splint 12 is provided with cushion 15, avoid at fixed in-process, cause the damage to power supply unit 34.
Preferably, the contact pin 18 is fixedly installed inside the contact post 5, the fixing ring 19 is fixedly installed at one end of the outer surface of the main body housing 1, which is located at the contact post 5, and the connecting ring 23 is connected to the rotating joint 21, so that the connecting ring 23 is in threaded connection with the fixing ring 19 at one end of the contact post 5.
Preferably, the top column 20 is fixedly installed on two sides of the inner wall of the terminal 5, the joint 21 is inserted into the terminal 5, the terminal 5 is matched with the joint 21, and in the wiring process, the joint 21 at one end of the lead 24 needs to be inserted into the terminal 5.
Preferably, a baffle 22 is fixedly installed at one end of the connector 21, a lead 24 is fixedly installed at one end of the connector 21, which is located at one side of the baffle 22, a connecting ring 23 is sleeved at one end of the lead 24, and the connecting ring 23 is in threaded connection with the fixing ring 19.
Preferably, the outer surface of the joint 21 is provided with a transverse groove 25, one end of the outer surface of the joint 21, which is located at the transverse groove 25, is provided with a vertical groove 26, the top pillar 20 is matched with the transverse groove 25, the top pillar 20 on the inner wall of the terminal 5 slides in from the transverse groove 25 on the surface of the joint 21 until reaching the intersection of the transverse groove 25 and the vertical groove 26, and then the joint 21 is rotated to enable the top pillar 20 to slide into one end of the vertical groove 26 to clamp the joint 21.
Preferably, a display screen 27 is fixedly installed at the top end of the outer surface of the controller 10, the display screen 27 is a color high-lattice liquid crystal screen, the touch screen is low in power consumption and multi-parameter display, a large-capacity high-performance lithium ion rechargeable battery is arranged in the display screen, the automatic polarity detection device of the current transformer is mainly applied to field polarity detection work of the current transformer, a plurality of keys 28 are arranged on the outer surface of the controller 10, which is located below the display screen 27, and the keys 28 can be used for inputting certain parameters for the transformer so as to ensure the input pulse amplitude.
Preferably, the outer surface of the controller 10 is provided with an actuating button 29 below the key 28, and the actuating button 29 can select a corresponding mode according to the type of a transformer, such as a voltage transformer, a current transformer, an electromagnetic type, a capacitor, and the like, and can input different types of pulse values according to different types of transformers.
Preferably, the outer surface of the controller 10 is provided with a mode switching button 30 at a side of the fixing ring 19.
Preferably, the bottom end of the controller 10 is provided with a first interface 31, one side of the bottom end of the controller 10, which is located at the first interface 31, is provided with a second interface 32, one side of the bottom end of the controller 10, which is located at the second interface 32, is provided with a third interface 33, the first interface 31, the second interface 32 and the third interface 33 are connected with a secondary wire and a primary wire according to the field situation, and the experimental cable is durable due to the adoption of a plug-in plug.
Preferably, the first interface 31, the second interface 32 and the third interface 33 have different specifications.
The working principle is as follows: the polarity automatic detection device of the current transformer mainly comprises five parts: the power supply device 34, the data acquisition device 3, the A/D conversion circuit 8, the data processing device 7 and the liquid crystal display device 2, the power supply device 34 mainly provides a stable direct current power supply, the power supply device provides electric energy for data acquisition, processing and display, the excitation is provided for the excitation loop of the mutual inductor, a stable direct current pulse signal source is kept to be provided, the current mutual inductor is connected with the detection device through the wiring terminal 5, firstly, the data acquisition is carried out, the analog model is converted into the digital model through the A/D conversion circuit 8 and is transmitted to the data processing device 7 module, finally, the detection result is displayed through the liquid crystal display screen, in the wiring process, the connector 21 at one end of the lead 24 is required to be inserted into the wiring terminal 5, the top column 20 on the inner wall of the wiring terminal 5 slides in from the transverse groove 25 on the surface of the connector 21 until the intersection of the transverse groove 25 and the vertical groove 26 is reached, then the connector 21 is rotated, the top post 20 slides into one end of the vertical groove 26 to clamp the joint 21, and simultaneously, the connecting ring 23 at one end of the joint 21 is rotated, so that the connecting ring 23 is in threaded connection with the fixing ring 19 at one end of the binding post 5, the wiring firmness is increased, when the power supply device 34 is installed, the knob 13 at one side of the installation seat 6 can be rotated, the knob 13 drives the screw 17 to rotate, the slider 16 can drive the second clamping plate 12 at one side to move to one side along the sliding groove 14, the distance between the first clamping plate 11 and the second clamping plate 12 is pulled open, then the power supply device 34 is placed on the installation seat 6, finally, the knob 13 is rotated to drive the second clamping plate 12 to move, the power supply device 34 is fixed through the first clamping plate 11 and the second clamping plate 12, the distance between the first clamping plate 11 and the second clamping plate 12 can be adjusted according to the specification of the power supply device 34, the rubber pads 15 are arranged on the inner sides of the first clamping plate 11 and the second clamping plate 12, avoiding damage to the power supply unit 34 during the fixing process; the data acquisition device 3 has high accuracy in acquiring data, can resist external magnetic field interference, has no distortion of acquisition amount in the transmission process, and is convenient for workers to judge and analyze; the data processing device 7 has small volume and light weight, and is convenient to carry and use; the data processing efficiency is high, can sense the little change of the volume of gathering, and the controller 10 of the current transformer polarity automatic checkout device mainly comprises four bibliographic categories: the device comprises a key 28, a display screen 27 and interfaces, wherein the key 28 can be used for inputting certain parameters for a mutual inductor to ensure the input of a pulse amplitude value, a starting button 29 can be used for selecting corresponding modes according to the type of the mutual inductor, such as a voltage mutual inductor, a current mutual inductor, an electromagnetic type and a capacitor, different types of pulse values are input according to different types of the mutual inductor, a first interface 31, a second interface 32 and a third interface 33 are connected with a secondary wire and a primary wire according to the field conditions, an experimental wire adopts a plug-in plug and is durable, the display screen 27 adopts a color high-lattice liquid crystal screen, the touch screen is low in power consumption and multi-parameter display, and a high-capacity high-performance lithium ion rechargeable battery is arranged in the display screen.
The above; is only a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; according to the technical scheme of the utility model and the improvement conception, equivalent substitution or change is carried out; are all covered by the protection scope of the utility model.
Claims (10)
1. The utility model provides a current transformer polarity automatic checkout device, includes main body cover (1), its characterized in that: the top end outer surface of the main body shell (1) is fixedly provided with a display device (2), one side of the inside of the main body shell (1) is fixedly provided with a data acquisition device (3), one side of the inner wall of the main body shell (1) is fixedly provided with a socket (4), the other side of the inner wall of the main body shell (1) is fixedly provided with a binding post (5), the inside of the main body shell (1) is fixedly provided with a mounting seat (6) in front of the data acquisition device (3), the top end of the mounting seat (6) is provided with a power supply device (34), one side of the inside of the main body shell (1) in the power supply device (34) is provided with a data processing device (7), four corners of the data processing device (7) are fixedly provided with fixing bolts, and the data processing device (7) is fixedly connected with the main body shell (1) through the fixing bolts, the data acquisition device is characterized in that an A/D (analog to digital) line conversion device (8) is fixedly installed on one side of a data acquisition device (3) in the main body shell (1), a mounting frame (9) is fixedly installed on the rear end of the main body shell (1), a controller (10) is placed in the mounting frame (9), a first clamping plate (11) is fixedly installed on one side of the top end of the mounting seat (6), a second clamping plate (12) is arranged on the other side of the top end of the mounting seat (6), a knob (13) is arranged on one side of the mounting seat (6), the knob (13) is rotatably connected with the mounting seat (6), a sliding groove (14) is formed in the outer surface of the mounting seat (6), rubber pads (15) are fixedly installed on the inner sides of the first clamping plate (11) and the second clamping plate (12), a sliding block (16) is fixedly installed on the bottom end of the second clamping plate (12), and the sliding block (16) is matched with the sliding groove (14), the inside of spout (14) is provided with screw rod (17), screw rod (17) and slider (16) threaded connection, the one end and knob (13) fixed connection of screw rod (17).
2. The automatic polarity detection device for the current transformer according to claim 1, wherein: the inside fixed mounting of terminal (5) has contact pin (18), the one end fixed mounting that the surface of main part shell (1) is located terminal (5) has solid fixed ring (19).
3. The automatic polarity detection device for the current transformer according to claim 2, wherein: the inner wall both sides fixed mounting of terminal (5) has fore-set (20), the inside of terminal (5) is inserted and is had joint (21), terminal (5) and joint (21) phase-match.
4. The automatic polarity detection device for the current transformer according to claim 3, wherein: the one end fixed mounting who connects (21) has separation blade (22), the one end that connects (21) is located one side fixed mounting of separation blade (22) has wire (24), the pot head of wire (24) is equipped with go-between (23), go-between (23) and solid fixed ring (19) threaded connection.
5. The automatic polarity detection device for the current transformer according to claim 4, wherein: the outer surface of the joint (21) is provided with a transverse groove (25), one end, located on the transverse groove (25), of the outer surface of the joint (21) is provided with a vertical groove (26), and the top column (20) is matched with the transverse groove (25).
6. The automatic polarity detection device for the current transformer according to claim 1, wherein: the outer surface top fixed mounting of controller (10) has display screen (27), the surface of controller (10) is located the below of display screen (27) and is provided with a plurality of button (28).
7. The automatic polarity detection device for the current transformer according to claim 6, wherein: the outer surface of the controller (10) is provided with a starting button (29) below the key (28).
8. The automatic polarity detection device for the current transformer according to claim 7, wherein: and a mode conversion button (30) is arranged on one side, positioned on the fixing ring (19), of the outer surface of the controller (10).
9. The automatic polarity detection device for the current transformer according to claim 8, wherein: the bottom of controller (10) has seted up first interface (31), second interface (32) have been seted up to the bottom of controller (10) one side that is located first interface (31), third interface (33) have been seted up to the bottom of controller (10) one side that is located second interface (32).
10. The automatic polarity detection device for the current transformer according to claim 9, wherein: the first interface (31), the second interface (32) and the third interface (33) are different in specification and size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022507971.9U CN214174594U (en) | 2020-11-04 | 2020-11-04 | Current transformer polarity automatic checkout device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022507971.9U CN214174594U (en) | 2020-11-04 | 2020-11-04 | Current transformer polarity automatic checkout device |
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| Publication Number | Publication Date |
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| CN214174594U true CN214174594U (en) | 2021-09-10 |
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| CN202022507971.9U Active CN214174594U (en) | 2020-11-04 | 2020-11-04 | Current transformer polarity automatic checkout device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115616457A (en) * | 2022-12-01 | 2023-01-17 | 佛山德玛特智能装备科技有限公司 | Mover polarity detector and motor mover polarity detection method |
-
2020
- 2020-11-04 CN CN202022507971.9U patent/CN214174594U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115616457A (en) * | 2022-12-01 | 2023-01-17 | 佛山德玛特智能装备科技有限公司 | Mover polarity detector and motor mover polarity detection method |
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