CN109444617A - A kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure - Google Patents
A kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure Download PDFInfo
- Publication number
- CN109444617A CN109444617A CN201811610341.5A CN201811610341A CN109444617A CN 109444617 A CN109444617 A CN 109444617A CN 201811610341 A CN201811610341 A CN 201811610341A CN 109444617 A CN109444617 A CN 109444617A
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- China
- Prior art keywords
- voltage transformer
- harmonic elimination
- elimination apparatus
- detection
- shell
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Classifications
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- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of voltage transformer harmonic elimination apparatus testers with quick detection mounting structure, including shell, the housing forward end fixes sleeve, detection bar is set in fixes sleeve, detection bar front end is equipped with detection probe, it is set with fixed mechanism in detection bar on front side of the fixes sleeve, probe is will test when for detecting and is quick installed at voltage transformer；The present invention provides a kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure, structure setting is ingenious and connection and reasonable arrangement, when the invention works, harmonic elimination apparatus is mounted on voltage transformer, judge the harmonic elimination effect of harmonic elimination apparatus to test harmonic elimination apparatus by measuring the resonance frequency of voltage transformer, detection probe is quick installed on voltage transformer by fixed mechanism, facilitates operation；Ingehious design of the present invention has Resonance detector mechanism, and fast and easy accurately detects the resonance of voltage transformer.
Description
Technical field
The present invention relates to harmonic elimination test equipment technical field, specifically a kind of voltage with quickly detection mounting structure is mutual
Sensor harmonic elimination apparatus tester.
Background technique
Resonance eliminator is the damping device for protecting voltage transformer primary side, for the resonance in harmonic elimination power grid, in 6-35kV
Property point ungrounded electric net work in electromagnetic potential transformer (hereinafter referred to as PT), when bus is unloaded or outlet is less, because closing a floodgate
Charging or the at runtime excitation of the reasons such as ground fault elimination, can make voltage transformer supersaturated, then there may be ferromagnetic humorous
Vibration overvoltage.It is unstable to there is phase-to-ground voltage, ground connection instruction malfunction, the abnormal phenomenon such as PT high-voltage fuse fusing, seriously
When will lead to PT and burn, then cause other accident.Such case just needs to install resonance eliminator.
Resonance eliminator principle, essence are a kind of high capacity nonlinear resistors, play damping and current limliting.It can play
The effect of good limitation Ferroresonance Overvoltage Caused by PT.If 6-35kV neutral point of electric network is earth-free, Y0 wiring on bus
TV first winding becomes power grid unique metal channel over the ground.Power-to-ground capacitance has a charge and discharge by TV first winding
The transient process of electricity.Test measures usually has highest amplitude to shove up to several amperes of power frequency half-wave through TV at this time, this electric current has
It may be by TV high-voltage wire iron-melting fusing.And after being mounted with resonance eliminator, this shove will be effectively suppressed, high voltage fuse no longer because
This shove and fuse.
However currently used for the harmonic elimination apparatus of voltage transformer in test, when generally being worked by harmonic elimination apparatus, measurement
The resonant intensity of voltage transformer and frequency actually determine the harmonic elimination effect of harmonic elimination apparatus, however it is mutual to be conventionally used to measurement voltage
The tester structure of sensor resonance is stiff, especially inconvenient quickly detection installation；And test accuracy is poor.
Summary of the invention
The purpose of the present invention is to provide a kind of voltage transformer harmonic elimination apparatus tests with quick detection mounting structure
Instrument, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure, including shell, the housing forward end
Fixes sleeve, detection bar is set in fixes sleeve, and detection bar front end is equipped with detection probe, detection bar on front side of the fixes sleeve
On be set with fixed mechanism, will test probe when for detecting and be quick installed at voltage transformer；Front side is solid in the shell
Surely it is equipped with resonant transducer ontology, cavity is equipped in the resonant transducer ontology, is set with piston in cavity, detection bar runs through
Resonant transducer ontology is protruded into cavity and is fixedly connected with piston middle part, and the resonant transducer ontology rear end fixation is set
There is the pressure-sensitive diaphragm of sealing cavity, is fixed with vibrating diaphragm on the outside of pressure-sensitive diaphragm, vibrating diaphragm is fixed on by two support columns
On pressure-sensitive diaphragm, outside is respectively equipped with pick-up coil and single coil excitement, pick-up coil and single coil excitement in shell internal vibration diaphragm
It is immobilized in the shell on wall by pick-up bracket and exciting bracket respectively, resonance test master is fixed on the outside of the housing rear end
Machine, resonance test host and are equipped with display screen.
When work, harmonic elimination apparatus is mounted on voltage transformer, is judged by measuring the resonance frequency of voltage transformer
To test harmonic elimination apparatus, it is mutual that detection probe by fixed mechanism is quick installed at voltage for the harmonic elimination effect of harmonic elimination apparatus
On sensor, facilitating operation, the resonance on voltage transformer is transmitted on resonant transducer ontology by detection probe and detection bar,
Detection bar causes the deformation of pressure-sensitive diaphragm by piston compression pressure diaphragm, and the deformation of pressure-sensitive diaphragm drives fixed frame
Angulation change is simultaneously tensioned vibrating diaphragm, so that the eigentone of vibrating diaphragm changes, and the two of vibrating diaphragm
Side is respectively equipped with single coil excitement and pick-up coil, the amplifying circuit composition positive feedback oscillation in single coil excitement and resonance test host
Circuit, supplements the energy of decaying to maintain the vibration of vibrating diaphragm, pick-up coil be used to detect the vibration frequency of vibrating diaphragm from
And convenient for the resonance frequency of resonance test Framework computing voltage transformer, to be imitated to the harmonic elimination of the harmonic elimination apparatus of voltage transformer
Fruit is tested.
Further, detection bar is corresponded on described this body sidewall of resonant transducer equipped with pilot sleeve, detection bar is sleeved on
In pilot sleeve, gasket is equipped in pilot sleeve.
Further, the pilot sleeve extends to hull outside through inner walls.
Further, the fixed mechanism mechanism includes fixing seat, is equipped with transverse sleeves in the middle part of fixing seat, fixing seat passes through
Transverse sleeves are sleeved in detection bar, and the fixing seat two sides have been respectively articulated with claw, and claw bottom is fixedly connected with operating stick,
The operating stick middle and lower part is connect by fastening spring with fixes sleeve front end outer wall, and the detection probe of detection bar outer end protrudes into two
Between claw.
Further, the claw is articulated and connected by hinge and fixing seat.
Further, the housing bottom bilateral symmetry is equipped with support frame, and support frame as described above bottom end is equipped with traveling wheel, described
Traveling wheel is locking castor.
Compared with prior art, the present invention have the following aspects the utility model has the advantages that
1. the present invention provides a kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure, structure setting is skilful
Wonderful and connection and reasonable arrangement, when the invention works, harmonic elimination apparatus is mounted on voltage transformer, by the resonance for measuring voltage transformer
Frequency judges the harmonic elimination effect of harmonic elimination apparatus to test harmonic elimination apparatus, and detection probe is quickly pacified by fixed mechanism
On voltage transformer, facilitate operation；
2. ingehious design of the present invention has Resonance detector mechanism, fast and easy accurately detects the resonance of voltage transformer, electricity
Resonance on pressure mutual inductor is transmitted on resonant transducer ontology by detection probe and detection bar, and detection bar is compressed by piston
Pressure-sensitive diaphragm, and then cause the deformation of pressure-sensitive diaphragm, the deformation of pressure-sensitive diaphragm drives the angulation change of fixed frame and is tensioned vibration
Diaphragm so that the eigentone of vibrating diaphragm changes, and is respectively equipped with single coil excitement in the two sides of vibrating diaphragm
With pick-up coil, the amplifying circuit in single coil excitement and resonance test host forms positive feedback oscillating circuit, supplements the energy of decaying
The vibration to maintain vibrating diaphragm is measured, pick-up coil is used to detect the vibration frequency of vibrating diaphragm consequently facilitating resonance tests host
The resonance frequency for calculating voltage transformer integrates to test the harmonic elimination effect of the harmonic elimination apparatus of voltage transformer
Carry out convenient test of the present invention quick and precisely.
Detailed description of the invention
Fig. 1 is a kind of top view of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure.
Fig. 2 is a kind of cross-sectional view of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure.
Fig. 3 is a kind of side view of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure.
In figure: 1, shell；2, fixes sleeve；3, fastening spring；4, operating stick；5, claw；6, fixing seat；7, it laterally covers
Cylinder；8, detection bar；9, detection probe；10, display screen；11, resonance tests host；12, resonant transducer ontology；13, cavity；
14, pilot sleeve；15, gasket；16, piston；17, pressure-sensitive diaphragm；18, pick-up bracket；19, vibrating diaphragm；19-1, fixation
Frame；20, pick-up coil；21, single coil excitement；22, exciting bracket；23, support frame；24, traveling wheel；25, hinge.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Please refer to Fig. 1-3, a kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure, including shell
Body 1, the 1 front end fixes sleeve 2 of shell are set with detection bar 8 in fixes sleeve 2, and 8 front end of detection bar is equipped with detection probe 9,
It is set with fixed mechanism in the 2 front side detection bar 8 of fixes sleeve, probe 9 is will test when for detecting and is quick installed at voltage
On mutual inductor；Front side is fixed with resonant transducer ontology 12 in the shell 1, is equipped with sky in the resonant transducer ontology 12
Chamber 13, is set with piston 16 in cavity 13, detection bar 8 protruded into cavity 13 through resonant transducer ontology 12 and in piston 16
Portion is fixedly connected, and 12 rear end of resonant transducer ontology is fixed with the pressure-sensitive diaphragm 17 of sealing cavity 13, pressure membrane
Vibrating diaphragm 19 is fixed on the outside of piece 17, vibrating diaphragm 19 is fixed on pressure-sensitive diaphragm 17 by fixed frame 19-1, in shell 1
Outside is respectively equipped with pick-up coil 20 and single coil excitement 21 in vibrating diaphragm 19, and pick-up coil 20 and single coil excitement 21 pass through respectively
Pick-up bracket 18 and exciting bracket 22 are fixed on 1 inner wall of shell, and resonance test host is fixed on the outside of 1 rear end of shell
11, resonance tests host 11 and is equipped with display screen 10.
Detection bar 8 is corresponded on 12 side wall of resonant transducer ontology equipped with pilot sleeve 14, detection bar 8 is sleeved on guiding
In sleeve 14, gasket 15 is equipped in pilot sleeve 14.
The pilot sleeve 14 extends to 1 outside of shell through 1 inner wall of shell.
The fixed mechanism includes fixing seat 6, and transverse sleeves 7 are equipped in the middle part of fixing seat 6, and fixing seat 6 passes through transverse sleeves 7
It is sleeved in detection bar 8,6 two sides of fixing seat have been respectively articulated with claw 5, and 5 bottom of claw is fixedly connected with operating stick 4, institute
It states 4 middle and lower part of operating stick to connect by fastening spring 3 with 2 front end outer wall of fixes sleeve, the detection probe 9 of 8 outer end of detection bar is stretched
Enter between two claws 5.
The claw 5 is articulated and connected by hinge 25 and fixing seat 6.
1 bottom of the shell bilateral symmetry is equipped with support frame 23, and 23 bottom end of support frame as described above is equipped with traveling wheel 24, the row
Walking wheel 24 is locking castor.
The working principle of the invention is: when work, harmonic elimination apparatus is mounted on voltage transformer, and tester is visited by detection
First 9 abut voltage transformer, and resonance is transmitted in the cavity of resonant transducer ontology by detection probe 9 and detection bar 8, into
And it is transmitted to the deformation for causing pressure-sensitive diaphragm 17 on pressure-sensitive diaphragm 17, the deformation of pressure-sensitive diaphragm 17 drives the angle of fixed frame 19-1
Change and be tensioned vibrating diaphragm 19, so that the eigentone of vibrating diaphragm 19 changes, and in vibrating diaphragm 19
Two sides are respectively equipped with single coil excitement 21 and pick-up coil 20, the amplifying circuit composition in single coil excitement 21 and resonance test host 11
Positive feedback oscillating circuit supplements the energy of decaying to maintain the vibration of vibrating diaphragm 17, and pick-up coil 20 is for detecting vibrating membrane
The vibration frequency of piece is consequently facilitating resonance test host 11 calculates the resonance frequency of voltage transformer, thus to voltage transformer
The harmonic elimination effect of harmonic elimination apparatus is tested, and ingehious design of the present invention has fixed mechanism, conveniently be will test probe 9 and is quick installed at
On voltage transformer, particular by operating stick 4 is pulled, claw 5 is fixed on voltage transformer, then loosens operating stick 4,
The firm grip under the action of elastic-restoring force of fastening spring 3 of claw 5, detection probe 9 abut voltage transformer, so realize
Quickly detection installation, integrates convenient test of the present invention quick and precisely.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
Various changes can be made.
Claims (6)
1. a kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure, including shell (1), feature exists
In shell (1) the front end fixes sleeve (2), fixes sleeve (2) is interior to be set with detection bar (8), and detection bar (8) front end is equipped with
Detection probe (9) is set with fixed mechanism in detection bar (8) on front side of the fixes sleeve (2)；
Front side is fixed with resonant transducer ontology (12) in the shell (1), is equipped in the resonant transducer ontology (12)
Cavity (13), cavity (13) is interior to be set with piston (16), and detection bar (8) protrudes into cavity (13) through resonant transducer ontology (12)
It is interior and with piston (16) in the middle part of be fixedly connected, resonant transducer ontology (12) rear end is fixed with sealing cavity (13)
Pressure-sensitive diaphragm (17), be fixed with vibrating diaphragm (19) on the outside of pressure-sensitive diaphragm (17), vibrating diaphragm (19) passes through fixed frame
(19-1) is fixed on pressure-sensitive diaphragm (17), in shell (1) internal vibration diaphragm (19) outside be respectively equipped with pick-up coil (20) and
Single coil excitement (21), pick-up coil (20) and single coil excitement (21) are fixed by pick-up bracket (18) and exciting bracket (22) respectively
On shell (1) inner wall, resonance test host (11) is fixed on the outside of shell (1) rear end, resonance tests host (11)
It is equipped with display screen (10).
2. a kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure according to claim 1,
It is characterized in that, corresponding to detection bar (8) on resonant transducer ontology (12) side wall equipped with pilot sleeve (14), detection bar
(8) it is sleeved in pilot sleeve (14), is equipped with gasket (15) in pilot sleeve (14).
3. a kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure according to claim 3,
It is characterized in that, the pilot sleeve (14) extends on the outside of shell (1) through shell (1) inner wall.
4. a kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure according to claim 1,
It is characterized in that, the fixed mechanism includes fixing seat (6), transverse sleeves (7) are equipped in the middle part of fixing seat (6), fixing seat (6) is logical
It crosses transverse sleeves (7) to be sleeved on detection bar (8), fixing seat (6) two sides have been respectively articulated with claw (5), claw (5) bottom
It is fixedly connected with operating stick (4), operating stick (4) middle and lower part is connected by fastening spring (3) and fixes sleeve (2) front end outer wall
It connects, the detection probe (9) of detection bar (8) outer end protrudes between two claws (5).
5. a kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure according to claim 4,
It is characterized in that, the claw (5) is articulated and connected by hinge (25) and fixing seat (6).
6. a kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure according to claim 1,
It is characterized in that, shell (1) the bottom bilateral symmetry is equipped with support frame (23), support frame as described above (23) bottom end is equipped with traveling wheel
(24), the traveling wheel (24) is locking castor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811610341.5A CN109444617B (en) | 2018-12-27 | 2018-12-27 | Voltage transformer harmonic elimination device tester with rapid detection and installation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811610341.5A CN109444617B (en) | 2018-12-27 | 2018-12-27 | Voltage transformer harmonic elimination device tester with rapid detection and installation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109444617A true CN109444617A (en) | 2019-03-08 |
| CN109444617B CN109444617B (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811610341.5A Active CN109444617B (en) | 2018-12-27 | 2018-12-27 | Voltage transformer harmonic elimination device tester with rapid detection and installation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109444617B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440903A (en) * | 2019-09-03 | 2019-11-12 | 皖西学院 | A kind of lathe viberation detector |
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| DE10123789A1 (en) * | 2001-05-16 | 2002-11-21 | Philips Corp Intellectual Pty | Power supply system |
| CN1439870A (en) * | 2003-03-19 | 2003-09-03 | 张滨华 | Resonant densimeter with longitudinal vibration mode |
| US20070236213A1 (en) * | 2006-03-30 | 2007-10-11 | Paden Bradley E | Telemetry method and apparatus using magnetically-driven mems resonant structure |
| US20110062797A1 (en) * | 2008-05-29 | 2011-03-17 | Wojciech Piasecki | Protection system for voltage transformers |
| CN108020805A (en) * | 2018-01-09 | 2018-05-11 | 广东电网有限责任公司电力科学研究院 | The ferromagnetic resonance determination methods and system of a kind of voltage transformer for electric power distribution network |
| CN209373003U (en) * | 2018-12-27 | 2019-09-10 | 国网河南省电力公司洛阳供电公司 | A kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure |
-
2018
- 2018-12-27 CN CN201811610341.5A patent/CN109444617B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10123789A1 (en) * | 2001-05-16 | 2002-11-21 | Philips Corp Intellectual Pty | Power supply system |
| CN1439870A (en) * | 2003-03-19 | 2003-09-03 | 张滨华 | Resonant densimeter with longitudinal vibration mode |
| US20070236213A1 (en) * | 2006-03-30 | 2007-10-11 | Paden Bradley E | Telemetry method and apparatus using magnetically-driven mems resonant structure |
| US20110062797A1 (en) * | 2008-05-29 | 2011-03-17 | Wojciech Piasecki | Protection system for voltage transformers |
| CN108020805A (en) * | 2018-01-09 | 2018-05-11 | 广东电网有限责任公司电力科学研究院 | The ferromagnetic resonance determination methods and system of a kind of voltage transformer for electric power distribution network |
| CN209373003U (en) * | 2018-12-27 | 2019-09-10 | 国网河南省电力公司洛阳供电公司 | A kind of voltage transformer harmonic elimination apparatus tester with quick detection mounting structure |
Non-Patent Citations (1)
| Title |
|---|
| 王豪等: "基于光电检测的振弦式应变传感器的设计与实现", 传感技术学报, vol. 27, no. 12, pages 1601 - 1605 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440903A (en) * | 2019-09-03 | 2019-11-12 | 皖西学院 | A kind of lathe viberation detector |
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| Publication number | Publication date |
|---|---|
| CN109444617B (en) | 2023-08-25 |
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