CN112526387A - Non-contact power distribution equipment detection method - Google Patents
Non-contact power distribution equipment detection method Download PDFInfo
- Publication number
- CN112526387A CN112526387A CN202011187870.6A CN202011187870A CN112526387A CN 112526387 A CN112526387 A CN 112526387A CN 202011187870 A CN202011187870 A CN 202011187870A CN 112526387 A CN112526387 A CN 112526387A
- Authority
- CN
- China
- Prior art keywords
- distribution equipment
- power distribution
- detection
- equipment
- ultrasonic receiver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/167—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by projecting a pattern on the object
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a non-contact power distribution equipment detection method, which comprises the following steps: the method comprises the steps of firstly using a projector to sequentially project and irradiate gratings on four side walls of the power distribution equipment in parallel, if the side walls of the power distribution equipment are protruded and deformed, forming an image of the projection into a non-horizontal state, detecting an integral box body of the power distribution equipment, then vertically irradiating the surface of the power distribution equipment by using an infrared emitter, detecting the surface of the power distribution equipment to have a concave condition if the reflected infrared rays have a shadow, and if the reflected infrared rays are vertically retroreflected, not deforming the box body on the surface of the power distribution equipment. Compared with other treatment processes, the mounting frame convenient to move is used for fixing the detection equipment, the sound-proof housing is sleeved outside the whole equipment in the detection process, the influence of external noise on ultrasonic detection is prevented, the detection effect is improved, meanwhile, the remote detection equipment is used, the safety of the detection method is improved, and the detection process is more efficient.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a non-contact power distribution equipment detection method.
Background
Distribution equipment is to high voltage distribution cabinet, generator, transformer, power line, circuit breaker, low-voltage switchgear, distribution board, switch box, the collective name of equipment such as control box, above equipment all need the circular telegram to use to equipment is inside to need to pass through the electric current, after using for a long time, equipment can have the condition of ageing, thereby needs often to detect equipment.
The existing detection method for the power distribution equipment has the following defects: present detect distribution equipment often need the staff to use the test electrography to be close to and contact distribution equipment carries out contact measurement voltage current state, if distribution equipment has electric leakage phenomenon, then can cause the danger of electric shock to the staff, and if distribution equipment is bulky, then the detection range is great, staff's work load can improve greatly, can receive external factor's influence simultaneously, make the result of detection inaccurate, simultaneously because it is great to detect work load, then can't carry out a lot of and repeat the detection, the data that make the detection do not have the convincing power, make the degree of difficulty of detection achievement improve.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a non-contact power distribution equipment detection method, which fixes detection equipment by using a mounting frame convenient to move, enables the detection equipment to be convenient to move in a limiting manner, moves to a position to be detected according to needs and fixes, saves workers to hold the detection equipment by hands, greatly reduces the working strength of the workers, thereby shortening the detection time, can carry out multiple detections in the same time, namely can obtain the average value of the detection data, improves the accuracy of the detection data, blocks the influence of external noise on ultrasonic detection by sleeving a sound-proof cover on the whole equipment in the detection process, improves the detection effect, has the distance of 1m to 2m when an infrared ray and a projector are used for irradiating the outer wall of the power distribution equipment and an ultrasonic receiver are used for carrying out leakage detection on the power distribution equipment, therefore, the working personnel and the distribution equipment can be detected at a certain distance without contacting the distribution equipment, the danger of electric shock is avoided, the detection safety is improved, the difficulty of detection work is reduced, and the working efficiency of the working personnel is improved.
In order to achieve the purpose, the invention provides the following technical scheme: a non-contact power distribution equipment detection method comprises the following steps:
s1, firstly, using a projector to sequentially project and irradiate the gratings on the four side walls of the power distribution equipment in parallel, if the side walls of the power distribution equipment are projected and deformed, forming an image of the projection into a non-horizontal state, detecting the integral box body of the power distribution equipment, then, vertically irradiating the surface of the power distribution equipment by using an infrared emitter, if the reflected infrared rays have shadows, detecting that the surface of the power distribution equipment has a concave condition, and if the reflected infrared rays are vertically retroreflected, determining that the box body on the surface of the power distribution equipment is not deformed;
s2, after the overall shape of the power distribution equipment is detected, installing the ultrasonic receiver on the horizontal cross sliding frame, fixing the horizontal cross sliding frame in situ, and connecting the output end of the ultrasonic receiver with an oscilloscope through a signal line;
s3, adjust the height of horizontal sideslip support in proper order, promote ultrasonic receiver slowly on same level, carry out ultrasonic detection to distribution equipment layer by layer, if distribution equipment has the electric leakage condition locally, the electric current that produces during the electric leakage has the noise that slight electric shock produced, thereby ultrasonic receiver passes through the receiving terminal and can receives slight noise, convert the ultrasonic wave into the signal of telecommunication through the signal line and transmit the sound signal conversion visual wave band that the receiver received, detect distribution equipment from this, it does not have the unusual fluctuation to observe visual wave band, then distribution equipment does not have the electric leakage condition.
Preferably, the horizontal cross sliding frame can be adjusted in height at will and fixed.
Preferably, the ultrasonic receiver is isolated by using a sound-proof cover during detection.
Preferably, the projector detection process, the infrared detection process and the ultrasonic receiver detection process are all 1m to 2m away from the power distribution equipment.
Preferably, the ultrasonic receiver needs to detect the electric leakage 3 to 5 times.
The invention has the technical effects and advantages that:
the invention fixes the detection equipment by using the mounting frame which is convenient to move, ensures that the detection equipment is convenient to move in a limiting way, moves to the position to be detected and is fixed according to the requirement, saves the detection equipment which is held by a worker, greatly reduces the working strength of the worker, shortens the detection time, can carry out detection for multiple times in the same time, namely, can take the mean value of the detection data, improves the accuracy of the detection data, blocks the influence of external noise on ultrasonic detection by sleeving the sound-proof shield outside the whole equipment in the detection process, improves the detection effect, uses infrared rays and a projector to irradiate the outer wall of the distribution equipment and uses an ultrasonic receiver to carry out leakage detection on the distribution equipment, and ensures that the worker can carry out detection by keeping a certain distance with the distribution equipment, the electric shock hazard is avoided without contacting the distribution equipment, the detection safety is improved, the difficulty of detection work is reduced, and the work efficiency of workers is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A non-contact power distribution equipment detection method comprises the following steps:
s1, firstly, using a projector to sequentially project and irradiate the gratings on the four side walls of the power distribution equipment in parallel, if the side walls of the power distribution equipment are projected and deformed, forming an image of the projection into a non-horizontal state, detecting the integral box body of the power distribution equipment, then, vertically irradiating the surface of the power distribution equipment by using an infrared emitter, if the reflected infrared rays have shadows, detecting that the surface of the power distribution equipment has a concave condition, and if the reflected infrared rays are vertically retroreflected, determining that the box body on the surface of the power distribution equipment is not deformed;
s2, after the overall shape of the power distribution equipment is detected, installing the ultrasonic receiver on the horizontal cross sliding frame, fixing the horizontal cross sliding frame in situ, and connecting the output end of the ultrasonic receiver with an oscilloscope through a signal line;
s3, adjust the height of horizontal sideslip support in proper order, promote ultrasonic receiver slowly on same level, carry out ultrasonic detection to distribution equipment layer by layer, if distribution equipment has the electric leakage condition locally, the electric current that produces during the electric leakage has the noise that slight electric shock produced, thereby ultrasonic receiver passes through the receiving terminal and can receives slight noise, convert the ultrasonic wave into the signal of telecommunication through the signal line and transmit the sound signal conversion visual wave band that the receiver received, detect distribution equipment from this, it does not have the unusual fluctuation to observe visual wave band, then distribution equipment does not have the electric leakage condition.
Preferably, the horizontal cross sliding frame can be adjusted in height at will and fixed.
Preferably, the ultrasonic receiver is isolated by a sound-proof enclosure.
Preferably, the projector detection process, the infrared detection process and the ultrasonic receiver detection process are all 1m to 2m away from the power distribution equipment.
Preferably, the detection of the leakage by the ultrasonic receiver needs to be performed 3 to 5 times.
The method can detect 5 times within 1 hour when detecting the distribution equipment with the volume of 5 cubic meters, and the error of detection data is within the range of plus or minus 0.5, so that the detection method has high efficiency and accuracy.
Example 2
A non-contact power distribution equipment detection method comprises the following steps:
s1, firstly, using a projector to sequentially project and irradiate the gratings on the four side walls of the power distribution equipment in parallel, if the side walls of the power distribution equipment are projected and deformed, forming an image of the projection into a non-horizontal state, detecting the integral box body of the power distribution equipment, then, vertically irradiating the surface of the power distribution equipment by using an infrared emitter, if the reflected infrared rays have shadows, detecting that the surface of the power distribution equipment has a concave condition, and if the reflected infrared rays are vertically retroreflected, determining that the box body on the surface of the power distribution equipment is not deformed;
s2, after the overall shape of the power distribution equipment is detected, installing the ultrasonic receiver on the horizontal cross sliding frame, fixing the horizontal cross sliding frame in situ, and connecting the output end of the ultrasonic receiver with an oscilloscope through a signal line;
s3, adjust the height of horizontal sideslip support in proper order, promote ultrasonic receiver slowly on same level, carry out ultrasonic detection to distribution equipment layer by layer, if distribution equipment has the electric leakage condition locally, the electric current that produces during the electric leakage has the noise that slight electric shock produced, thereby ultrasonic receiver passes through the receiving terminal and can receives slight noise, convert the ultrasonic wave into the signal of telecommunication through the signal line and transmit the sound signal conversion visual wave band that the receiver received, detect distribution equipment from this, it does not have the unusual fluctuation to observe visual wave band, then distribution equipment does not have the electric leakage condition.
Preferably, the horizontal cross sliding frame can be adjusted in height at will and fixed.
Preferably, the ultrasonic receiver is isolated by a sound-proof enclosure.
Preferably, the projector detection process, the infrared detection process and the ultrasonic receiver detection process are all 1m to 2m away from the power distribution equipment.
Preferably, the detection of the leakage by the ultrasonic receiver needs to be performed 3 to 5 times.
The method can detect the power distribution equipment with the volume of 8 cubic meters for 5 times within 1 hour, and the error of detection data is within the range of plus or minus 0.5, so that the detection method has high efficiency and accuracy.
Example 3
A non-contact power distribution equipment detection method comprises the following steps:
s1, firstly, using a projector to sequentially project and irradiate the gratings on the four side walls of the power distribution equipment in parallel, if the side walls of the power distribution equipment are projected and deformed, forming an image of the projection into a non-horizontal state, detecting the integral box body of the power distribution equipment, then, vertically irradiating the surface of the power distribution equipment by using an infrared emitter, if the reflected infrared rays have shadows, detecting that the surface of the power distribution equipment has a concave condition, and if the reflected infrared rays are vertically retroreflected, determining that the box body on the surface of the power distribution equipment is not deformed;
s2, after the overall shape of the power distribution equipment is detected, installing the ultrasonic receiver on the horizontal cross sliding frame, fixing the horizontal cross sliding frame in situ, and connecting the output end of the ultrasonic receiver with an oscilloscope through a signal line;
s3, adjust the height of horizontal sideslip support in proper order, promote ultrasonic receiver slowly on same level, carry out ultrasonic detection to distribution equipment layer by layer, if distribution equipment has the electric leakage condition locally, the electric current that produces during the electric leakage has the noise that slight electric shock produced, thereby ultrasonic receiver passes through the receiving terminal and can receives slight noise, convert the ultrasonic wave into the signal of telecommunication through the signal line and transmit the sound signal conversion visual wave band that the receiver received, detect distribution equipment from this, it does not have the unusual fluctuation to observe visual wave band, then distribution equipment does not have the electric leakage condition.
Preferably, the horizontal cross sliding frame can be adjusted in height at will and fixed.
Preferably, the ultrasonic receiver is isolated by a sound-proof enclosure.
Preferably, the projector detection process, the infrared detection process and the ultrasonic receiver detection process are all 1m to 2m away from the power distribution equipment.
Preferably, the detection of the leakage by the ultrasonic receiver needs to be performed 3 to 5 times.
The method can detect the power distribution equipment with the volume of 10 cubic meters for 5 times within 1 hour, and the detection data error is within the range of plus or minus 0.5, so that the detection method has high efficiency and accuracy.
To sum up: compared with other treatment processes, the non-contact power distribution equipment detection method provided by the invention has the following advantages: the detection equipment is fixed by using the mounting rack which is convenient to move, so that the detection equipment is convenient to move in a limiting way, the detection equipment can be moved to the position to be detected and fixed as required, the detection equipment is not held by a worker, the working intensity of the worker is greatly reduced, the detection time is shortened, the detection can be carried out for multiple times in the same time, namely, the mean value of the detection data can be obtained, the accuracy of the detection data is improved, the influence of external noise on ultrasonic detection is prevented by additionally sleeving a sound-proof cover on the whole external part of the equipment in the detection process, the detection effect is improved, the distance between the infrared ray and the projector for irradiating the outer wall of the distribution equipment and the distance between the ultrasonic receiver for carrying out leakage detection on the distribution equipment is 1m to 2m, so that the worker and the distribution equipment can carry out detection while keeping a certain distance, the electric shock hazard is avoided without contacting the distribution equipment, the detection safety is improved, the difficulty of detection work is reduced, and the work efficiency of workers is improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. A non-contact power distribution equipment detection method is characterized in that: the method comprises the following steps:
s1, firstly, using a projector to sequentially project and irradiate the gratings on the four side walls of the power distribution equipment in parallel, if the side walls of the power distribution equipment are projected and deformed, forming an image of the projection into a non-horizontal state, detecting the integral box body of the power distribution equipment, then, vertically irradiating the surface of the power distribution equipment by using an infrared emitter, if the reflected infrared rays have shadows, detecting that the surface of the power distribution equipment has a concave condition, and if the reflected infrared rays are vertically retroreflected, determining that the box body on the surface of the power distribution equipment is not deformed;
s2, after the overall shape of the power distribution equipment is detected, installing the ultrasonic receiver on the horizontal cross sliding frame, fixing the horizontal cross sliding frame in situ, and connecting the output end of the ultrasonic receiver with an oscilloscope through a signal line;
s3, adjust the height of horizontal sideslip support in proper order, promote ultrasonic receiver slowly on same level, carry out ultrasonic detection to distribution equipment layer by layer, if distribution equipment has the electric leakage condition locally, the electric current that produces during the electric leakage has the noise that slight electric shock produced, thereby ultrasonic receiver passes through the receiving terminal and can receives slight noise, convert the ultrasonic wave into the signal of telecommunication through the signal line and transmit the sound signal conversion visual wave band that the receiver received, detect distribution equipment from this, it does not have the unusual fluctuation to observe visual wave band, then distribution equipment does not have the electric leakage condition.
2. The method of claim 1, wherein the step of detecting the contactless power distribution device comprises the steps of: the horizontal cross sliding frame can be adjusted in height at will and fixed.
3. The method of claim 1, wherein the step of detecting the contactless power distribution device comprises the steps of: the ultrasonic receiver is isolated by using a sound-proof cover during detection.
4. The method of claim 1, wherein the step of detecting the contactless power distribution device comprises the steps of: the distance between the projector detection process, the infrared detection process and the ultrasonic receiver detection process and the power distribution equipment is 1 m-2 m.
5. The method of claim 1, wherein the step of detecting the contactless power distribution device comprises the steps of: the detection of the leakage by the ultrasonic receiver needs to be performed 3 to 5 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011187870.6A CN112526387A (en) | 2020-10-30 | 2020-10-30 | Non-contact power distribution equipment detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011187870.6A CN112526387A (en) | 2020-10-30 | 2020-10-30 | Non-contact power distribution equipment detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112526387A true CN112526387A (en) | 2021-03-19 |
Family
ID=74979259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011187870.6A Pending CN112526387A (en) | 2020-10-30 | 2020-10-30 | Non-contact power distribution equipment detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112526387A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW554169B (en) * | 2000-02-15 | 2003-09-21 | Nikon Corp | Defect inspection apparatus |
| CN205353259U (en) * | 2016-01-28 | 2016-06-29 | 云南电网有限责任公司电力科学研究院 | A non -contact ultrasonic detection device for power equipment |
| CN107600591A (en) * | 2017-08-29 | 2018-01-19 | 刘清伟 | A kind of transformer automatic detection finished product production line flow process |
| CN107741659A (en) * | 2017-11-22 | 2018-02-27 | 青岛海信移动通信技术股份有限公司 | The detection means of LCD modules |
| CN108445367A (en) * | 2018-05-28 | 2018-08-24 | 南通大学 | Portable partial discharge detector based on ultrasound |
| CN209559740U (en) * | 2019-01-18 | 2019-10-29 | 征图新视(江苏)科技股份有限公司 | OLED screen raised grain defect detection device |
| CN110763959A (en) * | 2019-09-24 | 2020-02-07 | 武汉汉源既济电力有限公司 | High-voltage switch cabinet partial discharge detection circuit and detection method thereof |
-
2020
- 2020-10-30 CN CN202011187870.6A patent/CN112526387A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW554169B (en) * | 2000-02-15 | 2003-09-21 | Nikon Corp | Defect inspection apparatus |
| CN205353259U (en) * | 2016-01-28 | 2016-06-29 | 云南电网有限责任公司电力科学研究院 | A non -contact ultrasonic detection device for power equipment |
| CN107600591A (en) * | 2017-08-29 | 2018-01-19 | 刘清伟 | A kind of transformer automatic detection finished product production line flow process |
| CN107741659A (en) * | 2017-11-22 | 2018-02-27 | 青岛海信移动通信技术股份有限公司 | The detection means of LCD modules |
| CN108445367A (en) * | 2018-05-28 | 2018-08-24 | 南通大学 | Portable partial discharge detector based on ultrasound |
| CN209559740U (en) * | 2019-01-18 | 2019-10-29 | 征图新视(江苏)科技股份有限公司 | OLED screen raised grain defect detection device |
| CN110763959A (en) * | 2019-09-24 | 2020-02-07 | 武汉汉源既济电力有限公司 | High-voltage switch cabinet partial discharge detection circuit and detection method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5530966B2 (en) | Method and apparatus for testing insulation performance of gas insulation equipment | |
| CN102749558A (en) | Device and method for detecting cable oscillatory wave partial discharge and fault location | |
| MX2012013801A (en) | Novel method for real time tests and diagnosis of the sources of partial discharge in high voltage equipment and installations, which are in service or not in service, and physical system for the practical use of the method. | |
| CN105022020A (en) | RF electromagnetic field and radio immunity test system and method of electric energy meter | |
| CN105137157A (en) | Alternating- and direct-current high-voltage electricity testing device | |
| CN111025211A (en) | Magnitude tracing method and system of broadband voltage standard measuring device | |
| CN104764928B (en) | A kind of Portable pulse heavy-current measuring device of suitable substation field | |
| CN112526387A (en) | Non-contact power distribution equipment detection method | |
| CN105467285A (en) | Local-discharge three-dimensional space positioning sensor and fault positioning method for high-voltage electric equipment | |
| CN110412339A (en) | Current measuring device and method for power system | |
| CN112748312A (en) | SF6 gas-insulated metal enclosed complete set AC voltage-withstand and partial discharge test device | |
| Ji et al. | Review of partial discharge detection technology for transient earth voltage of HV switchgear cabinet | |
| CN217036745U (en) | Arc light sensor with temperature compensation | |
| CN114689998B (en) | Portable dial partial discharge detection device and method | |
| JPH10170589A (en) | In-substation failure point locating device | |
| CN212568989U (en) | Box-type substation signal simulation test platform | |
| CN204789785U (en) | Portable intelligent substation relay protection testing arrangement | |
| CN114660424A (en) | GIS equipment partial discharge detection diagnostic system | |
| Percebon et al. | Characterisation of factors influencing the magnetic leakage field of a 7 kW wireless electric vehicle charging system | |
| CN112505462A (en) | All-in-one transformer comprehensive test system | |
| Nicolas et al. | Specific absorption rate assessments based on a selective isotropic measuring system for electromagnetic fields | |
| CN207395888U (en) | Substation Station circle noise-measuring system | |
| CN202256584U (en) | Partial discharge ultrasonic positioning device | |
| CN212726006U (en) | Electric shock prevention switch cabinet | |
| Osmokrovic et al. | Transient electric field measurement in the liquid dielectrics using computerized laser tomography |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210319 |
|
| RJ01 | Rejection of invention patent application after publication |