CN210572503U - Full-automatic dielectric loss tester - Google Patents
Full-automatic dielectric loss tester Download PDFInfo
- Publication number
- CN210572503U CN210572503U CN201920386965.7U CN201920386965U CN210572503U CN 210572503 U CN210572503 U CN 210572503U CN 201920386965 U CN201920386965 U CN 201920386965U CN 210572503 U CN210572503 U CN 210572503U
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- Prior art keywords
- controller
- power supply
- tester
- variable frequency
- dielectric loss
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- 238000004891 communication Methods 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 230000017525 heat dissipation Effects 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 12
- 238000012360 testing method Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses a full-automatic dielectric loss tester, including the tester body, tester body front side is equipped with the panel, be equipped with the display screen on the panel, the display screen below is equipped with the controller, the top of tester body is equipped with the printer, the printer next door is equipped with the heat dissipation wind gap, be equipped with alternating current power supply input port on the controller, be connected with variable frequency power supply on the controller, and alternating current power supply input port is connected with variable frequency power supply, variable frequency power supply is connected with step up transformer, be equipped with communication measurement circuit on the controller, be equipped with CX reverse wiring current detection and CX positive wiring current detection on the communication measurement circuit, be connected with signal processor on the controller. Through the setting of controller and variable frequency power supply and communication measuring circuit, realize the transform of voltage to be equipped with CX anti-wiring current detection and CX positive wiring current detection on communication measuring circuit, realize the test to the medium, and the setting of controller can realize the automatic measurement that accomplishes the overall process of tester, has improved work efficiency.
Description
Technical Field
The utility model relates to a dielectric loss tester especially relates to a full-automatic dielectric loss tester.
Background
The dielectric loss tester is a high-precision tester for testing the dielectric loss tangent value and capacitance of various high-voltage power equipment in the field or in a laboratory, such as a power plant, a transformer substation and the like. The instrument is an integrated structure, and a dielectric loss test bridge, a variable frequency voltage regulation power supply, a step-up transformer and an SF6 high-stability standard capacitor are arranged in the instrument. The testing high voltage source is generated by an inverter inside the instrument and is used for testing a tested product after being boosted by a transformer. However, the existing dielectric loss tester has the defects that the operation is troublesome when the dielectric loss rate is measured, the verification task is heavy, the automation degree is insufficient, and the testing efficiency of the dielectric loss rate is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art not enough, the utility model provides a full-automatic dielectric loss tester can solve present dielectric loss tester and is more troublesome when measuring the dielectric loss rate, and it is also relatively heavier to examine and determine the task, and degree of automation is not enough, influences the efficiency of software testing's of dielectric loss rate problem.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a full-automatic dielectric loss tester, which comprises a tester body, wherein the front side of the tester body is provided with a panel, the panel is provided with a display screen, the left side below the display screen is provided with a sample wiring port, the right side of the sample wiring port is provided with a controller, a control key is arranged below the controller, the right side of the controller is sequentially provided with a power switch, a USB interface and a ground wire interface, one end of the front side of the tester body is hinged with a cabinet door, the other side of the tester body is provided with a lock catch mutually matched with the cabinet door, a printer is arranged above the top of the tester body, a heat dissipation air port is arranged beside the printer, the controller is provided with an alternating current power supply input port, the controller is connected with a variable frequency power supply, the alternating current power supply input port is connected with the variable frequency power supply, the variable, be equipped with communication measuring circuit on the controller, be equipped with CX on the communication measuring circuit and bar the line current detection and CX are positive to be connected with line current and detect, be connected with signal processor on the controller, the last memory that is connected with of signal processor, be connected with the USB interface on the memory.
As a preferred technical scheme of the utility model, controller and printer, display screen and control key electric connection.
As an optimal technical scheme of the utility model, tester body bottom is equipped with the gyro wheel all around.
As an optimized technical scheme of the utility model, be equipped with overvoltage protection module and overcurrent protection module on the controller.
As the utility model discloses a preferred technical scheme, communication measuring circuit adopts variable frequency power supply control, still be equipped with accurate MPPM digital modem on the communication measuring circuit.
Compared with the prior art, the utility model discloses the beneficial effect that can reach is:
the utility model discloses a controller and variable frequency power supply and communication measuring circuit's setting realizes the transform of voltage to be equipped with the CX on communication measuring circuit and prevent that wiring current detects and the positive wiring current detection of CX, realize the test to the medium, and show the structure through the display screen, the accessible printer is in time printed out with detecting the structure simultaneously, and the setting of controller can realize the automatic complete process's of tester measurement, has improved work efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of the present invention;
wherein: 1. a tester body; 2. a panel; 3. a display screen; 4. a test article wiring port; 5. a controller; 6. a manipulation key; 7. a ground wire interface; 8. a USB interface; 9. a power switch; 10. a cabinet door; 11. locking; 12. a printer; 13. a heat dissipation air port; 14. a roller; 15. a variable frequency power supply; 16. a step-up transformer; 17. A communication measurement circuit; 18. CX reverse wiring current detection; 19. CX positive wiring current detection; 20. a signal processor; 21. a memory.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Referring to fig. 1-2, the utility model provides a full-automatic dielectric loss tester, which comprises a tester body 1, a panel 2 is arranged on the front side of the tester body 1, a display screen 3 is arranged on the panel 2, a sample wiring port 4 is arranged on the left side below the display screen 3, a controller 5 is arranged on the right side of the sample wiring port 4, a control key 6 is arranged below the controller 5, a power switch 9, a USB interface 8 and a ground wire interface 7 are sequentially arranged on the right side of the controller 5, a cabinet door 10 is hinged on one end of the front side of the tester body 1, a lock catch 11 which is matched with the cabinet door 10 is arranged on the other side of the tester body 1, a printer 12 is arranged above the top of the tester body 1, a heat dissipation air port 13 is arranged beside the printer 12, an alternating current power input port is arranged on the controller 5, a variable frequency power supply 15 is connected on the controller 5, the variable frequency power supply 15 is connected with a step-up transformer 16, the controller 5 is provided with a communication measuring circuit 17, the communication measuring circuit 17 is provided with a CX reverse wiring current detection 18 and a CX positive wiring current detection 19, the controller 5 is connected with a signal processor 20, the signal processor 20 is connected with a memory 21, and the memory 21 is connected with a USB interface 8.
The controller 5 is electrically connected with the printer 12, the display screen 3 and the operation key 6. The periphery of the bottom of the tester body 1 is provided with rollers 14. The controller 5 is provided with an overvoltage protection module and an overcurrent protection module. The communication measuring circuit 17 adopts Fourier transform, complex operation and other calculation, range switching and control of the variable frequency power supply 15, and the communication measuring circuit 17 is also provided with a precise MPPM digital modem for sending reverse wiring current signals to a low-voltage side.
The specific working principle is as follows: the ground wire is connected with a ground wire interface 7, a to-be-tested object is connected with a test object wiring port 4, external alternating current is connected with an alternating current power supply input port, the opening of equipment is controlled through a power switch 9, the operation control is carried out through an operation key 6, after the measurement is started, a high-voltage set value is sent to a variable frequency power supply 15, the variable frequency power supply 15 adjusts the output slow speed to the set value through a PID algorithm, a communication measurement circuit 17 sends the actually-measured high voltage to the variable frequency power supply 15, the low voltage is finely adjusted, and accurate high-voltage output is achieved. According to the setting of the positive/negative connection lines, the communication measuring circuit 17 automatically selects input and switches measuring ranges according to test current, the communication measuring circuit 17 filters interference by adopting Fourier transform, signal fundamental waves are separated, vector operation is carried out on standard current and test sample current, amplitude value calculation capacitance and angular difference calculation are carried out. After the measurement is finished, the communication measurement circuit 17 sends a voltage reduction instruction to slowly reduce the voltage of the variable frequency power supply 15 to 0; the signal processor 20 processes and analyzes the measurement structure and displays it through the display screen 3, and the controller 5 controls the printer 12 to print the measurement structure.
The utility model discloses the beneficial effect that can reach is: the utility model discloses a controller and variable frequency power supply and communication measuring circuit's setting realizes the transform of voltage to be equipped with the CX on communication measuring circuit and prevent that wiring current detects and the positive wiring current detection of CX, realize the test to the medium, and show the structure through the display screen, the accessible printer is in time printed out with detecting the structure simultaneously, and the setting of controller can realize the automatic complete process's of tester measurement, has improved work efficiency.
The embodiments of the present invention are not limited to the above embodiments, and according to the contents of the above embodiments of the present invention, the above preferred embodiments can also make modifications, replacements or combinations of other forms by using conventional technical knowledge and conventional means in the field without departing from the basic technical idea of the present invention, and the obtained other embodiments all fall within the scope of the present invention.
Claims (5)
1. The utility model provides a full-automatic dielectric loss tester, includes tester body (1), its characterized in that, tester body (1) front side is equipped with panel (2), be equipped with display screen (3) on panel (2), display screen (3) below left side is equipped with sample wiring port (4), sample wiring port (4) right side is equipped with controller (5), controller (5) below is equipped with manipulation key (6), controller (5) right side is equipped with switch (9), USB interface (8) and ground wire interface (7) in proper order, the front side one end of tester body (1) articulates there is cabinet door (10), the opposite side of tester body (1) is equipped with hasp (11) that mutually supports with cabinet door (10), the top of tester body (1) is equipped with printer (12), printer (12) next door is equipped with heat dissipation wind gap (13), be equipped with alternating current power supply input port on controller (5), be connected with variable frequency power supply (15) on controller (5), just alternating current power supply input port is connected with variable frequency power supply (15), variable frequency power supply (15) are connected with step up transformer (16), be equipped with communication measuring circuit (17) on controller (5), be equipped with on communication measuring circuit (17) that the CX is anti-wiring current detection (18) and CX positive wiring current detection (19), be connected with signal processor (20) on controller (5), be connected with memory (21) on signal processor (20), be connected with USB interface (8) on memory (21).
2. The fully automatic dielectric loss tester according to claim 1, wherein the controller (5) is electrically connected to the printer (12), the display screen (3) and the operation key (6).
3. The full-automatic dielectric loss tester according to claim 1, wherein rollers (14) are arranged around the bottom of the tester body (1).
4. The full-automatic dielectric loss tester according to claim 1, wherein the controller (5) is provided with an overvoltage protection module and an overcurrent protection module.
5. The full-automatic dielectric loss tester as claimed in claim 1, wherein the communication measuring circuit (17) is controlled by a variable frequency power supply (15), and the communication measuring circuit (17) is further provided with a precision MPPM digital modem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920386965.7U CN210572503U (en) | 2019-03-26 | 2019-03-26 | Full-automatic dielectric loss tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920386965.7U CN210572503U (en) | 2019-03-26 | 2019-03-26 | Full-automatic dielectric loss tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210572503U true CN210572503U (en) | 2020-05-19 |
Family
ID=70635483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920386965.7U Expired - Fee Related CN210572503U (en) | 2019-03-26 | 2019-03-26 | Full-automatic dielectric loss tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210572503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751587A (en) * | 2020-07-15 | 2020-10-09 | 武汉启亦电气有限公司 | Dielectric loss test power supply based on high-frequency power electronic transformation technology |
-
2019
- 2019-03-26 CN CN201920386965.7U patent/CN210572503U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751587A (en) * | 2020-07-15 | 2020-10-09 | 武汉启亦电气有限公司 | Dielectric loss test power supply based on high-frequency power electronic transformation technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 |