CN212965324U - Online visual electric quantity analysis and detection device of rotating equipment - Google Patents
Online visual electric quantity analysis and detection device of rotating equipment Download PDFInfo
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- CN212965324U CN212965324U CN202021541036.8U CN202021541036U CN212965324U CN 212965324 U CN212965324 U CN 212965324U CN 202021541036 U CN202021541036 U CN 202021541036U CN 212965324 U CN212965324 U CN 212965324U
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Abstract
The utility model relates to an equipment operation and maintenance technical field specifically disclose a visual electric quantity analysis detection device of online of rotating equipment. The detection device comprises a microcomputer, a voltage/current wiring harness, a current clamp and a voltage power taking module, wherein the current clamp and the voltage power taking module are connected with the microcomputer through the voltage/current wiring harness, the current clamp is connected with a primary load loop and performs transformation ratio sampling on current of the primary load loop, the voltage power taking module is connected with the primary load loop and performs transformation ratio sampling on voltage of the primary load loop, sampling values of the current clamp and the voltage power taking module are fed back to the microcomputer through the voltage/current wiring harness to perform data processing, and the processed data are displayed in a curve form through a display screen connected with the microcomputer. The detection device is used, so that the on-line sampling operation of the rotary equipment without power failure is realized, and a basis is provided for the maintenance engineer to perform fault location and fault analysis.
Description
Technical Field
The utility model belongs to the technical field of equipment operation and maintenance, concretely relates to visual electric quantity analysis detection device of online of rotating equipment.
Background
In all industrial fields, the drive units, such as pumps, fans, process systems, are not kept separate from the motor, as are nuclear power plants.
The nuclear power plant has thousands of rotating electrical machines, mainly three-phase asynchronous motors, through maintenance operation of nearly more than ten years, we find that the professional attribute of the motor is very strong, many defects can not be through the alternate direct current resistance of the motor and the judgement of whether insulation resistance to the ground is normal, for example, after a motor with a certain load is started, an overload relay in an upstream power distribution loop reports a fault and a switch trips, the electrical performance of the motor is checked to be normal, manual coiling of the load does not have a jam phenomenon, the fault reason can not be located at one time, then an electrical worker finds that the distortion of current and voltage waveform is serious by recording the waveform of output voltage and current at the side of a power distribution panel, judges that the motor is abnormal inside, and then the defect is eliminated after the motor is replaced.
The wave recording equipment is heavy, the wave recording equipment needs to be matched with computer software for wave recording, a temporary power supply needs to be connected for power supply, and the wave recording operation is very complicated. In addition, because the space of the power distribution cabinet of the rotary equipment is narrow and small, in order to guarantee safety, a wire needs to be merged into a wire outlet terminal when a voltage is obtained, and after the wave recording is finished, the rotary equipment is required to be powered off and isolated, and then the power obtaining lead wire can be taken out, so that the rotary equipment is started and stopped for many times.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a visual electric quantity analysis detection device of online of rotating equipment solves the visual monitoring problem of output voltage and electric current before industry field rotating equipment starts, through CT pincers and voltage power-taking clamp, can carry out electric quantity analysis under the operating mode that does not have a power failure, and is high-efficient portable, and visual interface also seems humanized and succinct especially moreover.
The technical scheme of the utility model as follows: the detection device comprises a microcomputer, a voltage/current wire harness, a current clamp and a voltage electricity taking module, wherein the current clamp and the voltage electricity taking module are connected with the microcomputer through the voltage/current wire harness, the current clamp is connected with a load primary loop and carries out transformation ratio sampling on current of the load primary loop, the voltage electricity taking module is connected with the load primary loop and carries out transformation ratio sampling on voltage of the load primary loop, sampling values of the current clamp and the voltage electricity taking module are fed back to the microcomputer through the voltage/current wire harness to carry out data processing, and processed data are displayed in a curve form through a display screen connected with the microcomputer.
The microcomputer is connected with a power-on/power-off button which is a multiplexing button, the microcomputer is powered on by pressing the button for a short time, and the microcomputer is powered off by pressing the button for a long time for 3 seconds.
The microcomputer is connected with a battery module, wherein the battery module adopts a rechargeable lithium battery with 12V voltage and 10Ah capacity, and can provide a working power supply for the whole detection device.
The microcomputer is connected with the USB export module and can export the waveform displayed on the display screen to an external storage medium.
The display screen is characterized in that a soft button is arranged in a display page of the display screen and comprises a start recording button and a stop recording button, wherein after the start recording button is pressed down, the detection device automatically records three-phase voltage and three-phase current waveforms, and after the stop recording button is pressed down, the detection device stops recording, rated current of rotary equipment can be input into the display screen, and curve waveform amplitude is convenient to display.
The current clamp samples the current of the load primary loop according to a transformation ratio of 1000/1.
And the voltage electricity taking module samples the voltage of the load primary loop according to the transformation ratio of 400/5.
The microcomputer adopts an Atmega128 singlechip as a logic control core.
The microcomputer has a power self-checking function.
The utility model discloses a show the effect and lie in: an online visual electric quantity analysis detection device of rotary equipment, through follow-on voltage power acquisition clamp and existing CT pincers, sample the voltage and the electric current waveform of rotary equipment start-up process and operation in-process, after data processing and the logic analysis through the device host computer, carry out the curve of waveform and show, realized the online sampling operation that rotary equipment does not have a power failure, and demonstrate the electric quantity curve of start-up process and operation in-process directly perceivedly, carry out fault location and failure analysis for maintenance engineer and provide the foundation.
Drawings
Fig. 1 is a control logic diagram of an online visual electric quantity analysis and detection device of a rotating apparatus according to the present invention;
fig. 2 is a hardware block diagram of an online visualized electric quantity analysis and detection device of a rotating apparatus according to the present invention;
in the figure: 1. a microcomputer; 2. an on/off button; 3. a battery module; 4. a display screen; 5. a voltage/current harness; 6. current clamping; 7. a voltage electricity taking module; 8. and a USB export module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, an online visual electric quantity analysis and detection device for a rotating device includes a microcomputer 1, a voltage/current wire harness 5, a current clamp 6 and a voltage electricity taking module 7, wherein the current clamp 6 and the voltage electricity taking module 7 are connected with the microcomputer 1 through the voltage/current wire harness 5, the current clamp 6 is connected with a load primary loop, and samples a current of the load primary loop according to a transformation ratio of 1000/1, the voltage electricity taking module 7 is connected with the load primary loop, and samples a voltage of the load primary loop according to a transformation ratio of 400/5, and sampling values of the current clamp 6 and the voltage electricity taking module 7 are fed back to the microcomputer 1 through the voltage/current wire harness 5 for data processing; the microcomputer 1 adopts an Atmega128 singlechip as a control core, processes a feedback signal of a voltage/current wire harness 5, displays the processed feedback signal in a curve form through a display screen 4 connected with the microcomputer 1, soft buttons are arranged in the page of the display screen 4 and comprise a start recording button and a stop recording button, wherein after the start recording button is pressed, a detection device automatically records three-phase voltage and three-phase current waveforms, and after the stop recording button is pressed, the detection device stops recording, and rated current of rotary equipment can be input into the display screen 4, so that the amplitude of the curve waveform can be conveniently displayed; the microcomputer 1 is connected with an on/off button 2, the on/off button 2 is a multiplexing button, the button is pressed for a short time to start up, and the button is pressed for a long time for 3 seconds to realize shutdown; the microcomputer 1 is connected with the battery module 3, wherein the battery module 3 adopts a rechargeable lithium battery with 12V voltage and 10Ah capacity, and can provide a working power supply for the whole detection device; the microcomputer 1 is connected with a USB export module 8, and can export the waveform displayed on the display screen 4 to an external storage medium.
Claims (9)
1. The utility model provides a visual electric quantity analysis detection device of online of rotating equipment which characterized in that: the detection device comprises a microcomputer (1), a voltage/current wiring harness (5), a current clamp (6) and a voltage electricity taking module (7), wherein the current clamp (6) and the voltage electricity taking module (7) are connected with the microcomputer (1) through the voltage/current wiring harness (5), the current clamp (6) is connected with a load primary loop and conducts transformation ratio sampling on current of the load primary loop, the voltage electricity taking module (7) is connected with the load primary loop and conducts transformation ratio sampling on voltage of the load primary loop, sampling values of the current clamp (6) and the voltage electricity taking module (7) are fed back to the microcomputer (1) through the voltage/current wiring harness (5) to conduct data processing, and processed data are displayed in a curve form through a display screen (4) connected with the microcomputer (1).
2. The on-line visual electric quantity analysis and detection device of the rotating equipment according to claim 1, characterized in that: the microcomputer (1) is connected with the power-on/power-off button (2), the power-on/power-off button (2) is a multiplexing button, the power-on is realized by pressing the button for a short time, and the power-off is realized by pressing the button for a long time for 3 seconds.
3. The on-line visual electric quantity analysis and detection device of the rotating equipment according to claim 1, characterized in that: the microcomputer (1) is connected with the battery module (3), wherein the battery module (3) adopts a rechargeable lithium battery with 12V voltage and 10Ah capacity, and can provide a working power supply for the whole detection device.
4. The on-line visual electric quantity analysis and detection device of the rotating equipment according to claim 1, characterized in that: the microcomputer (1) is connected with the USB export module (8) and can export the waveform displayed on the display screen (4) to an external storage medium.
5. The on-line visual electric quantity analysis and detection device of the rotating equipment according to claim 1, characterized in that: be equipped with the soft button in the demonstration page of display screen (4), the soft button is including starting the record ripples button and stopping the record ripples button, and wherein, after pressing the start record ripples button, detection device automatic recording three-phase voltage and three-phase current waveform, after pressing the stop record ripples button, detection device stops the record ripples, can also input rotary equipment's rated current in display screen (4), is convenient for show curve waveform amplitude.
6. The on-line visual electric quantity analysis and detection device of the rotating equipment according to claim 1, characterized in that: the current clamp (6) samples the current of the load primary loop according to the transformation ratio of 1000/1.
7. The on-line visual electric quantity analysis and detection device of the rotating equipment according to claim 1, characterized in that: and the voltage electricity taking module (7) samples the voltage of the load primary loop according to the transformation ratio of 400/5.
8. The on-line visual electric quantity analysis and detection device of the rotating equipment according to claim 1, characterized in that: the microcomputer (1) adopts an Atmega128 singlechip as a logic control core.
9. The on-line visual electric quantity analysis and detection device of the rotating equipment according to claim 1, characterized in that: the microcomputer (1) has an electric quantity self-checking function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021541036.8U CN212965324U (en) | 2020-07-29 | 2020-07-29 | Online visual electric quantity analysis and detection device of rotating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021541036.8U CN212965324U (en) | 2020-07-29 | 2020-07-29 | Online visual electric quantity analysis and detection device of rotating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212965324U true CN212965324U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021541036.8U Active CN212965324U (en) | 2020-07-29 | 2020-07-29 | Online visual electric quantity analysis and detection device of rotating equipment |
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| Country | Link |
|---|---|
| CN (1) | CN212965324U (en) |
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2020
- 2020-07-29 CN CN202021541036.8U patent/CN212965324U/en active Active
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