CN110865285A - Switch cabinet partial discharge test model device - Google Patents
Switch cabinet partial discharge test model device Download PDFInfo
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- CN110865285A CN110865285A CN201911133541.0A CN201911133541A CN110865285A CN 110865285 A CN110865285 A CN 110865285A CN 201911133541 A CN201911133541 A CN 201911133541A CN 110865285 A CN110865285 A CN 110865285A
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- 238000012360 testing method Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052802 copper Inorganic materials 0.000 abstract description 10
- 239000010949 copper Substances 0.000 abstract description 10
- 230000009471 action Effects 0.000 abstract description 6
- 238000004088 simulation Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
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- Business, Economics & Management (AREA)
- Algebra (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a switch cabinet partial discharge test model device which comprises a linear module, an encoder and a controller, wherein the linear module comprises a stepping motor, a linear slide rail, a lead screw slide block and an electrode fixing slide block, the electrode fixing slide block is connected with a discharge electrode model and the lead screw slide block, the lead screw is in threaded connection with the lead screw slide block, the lead screw slide block is in sliding connection with the linear slide rail, the linear module drives the discharge electrode model to move up and down through the electrode fixing slide block, the controller is used for controlling the stepping motor, the encoder is connected with the stepping motor and used for feeding back a position signal of the discharge electrode model, the electrode fixing slide block is connected with an electrode guide rod, and the discharge electrode model is installed at the lower end of. The invention simulates various discharge types by automatically controlling the action of the discharge electrode model and the action of the corresponding copper bar electrode, thereby avoiding the inconvenience of manually adjusting the discharge model and simultaneously avoiding the misoperation of a tester.
Description
Technical Field
The invention belongs to the technical field of high-voltage discharge simulation, and particularly relates to a simulation device for a partial discharge test of a switch cabinet.
Background
A switch cabinet is one of the main devices of a power distribution system, and its operating state has a significant influence on the reliability of the power distribution system. The consequences caused by the fault of switch cabinet equipment in a power distribution network are very serious, and the direct damage is that lines and equipment protected by electrical equipment are damaged and electric quantity is lost; the indirect harm causes large-area power failure of users, and reduces the reliability of power supply. The distribution network equipment is large in quantity, wide in distribution and severe in working environment; the insulation material of the switch cabinet in the power distribution system is under the action of high temperature, high voltage, vibration, oil stain, moisture and chemical substances for a long time, and the deterioration effect of the insulation performance is more obvious. CIGRE has counted that about 40% of switch cabinet faults are caused by insulation defects, and China has counted the switch cabinet faults in the last 90 th century, and the results are similar. Partial discharge is a main cause of insulation failure of the high-voltage switch cabinet and is also an important sign of insulation degradation. Therefore, the rapid and accurate detection of the partial discharge in the switch cabinet is of great significance for timely removing equipment defects and improving power supply reliability.
The partial discharge type is various, in order to enable vast operation and maintenance personnel to master partial discharge knowledge as soon as possible, improve partial discharge detection level, and be applied to practice, various switch cabinet partial discharge simulation devices appear on the market at present, but are in a manual mode, a rocker needs to be manually shaken to adjust a switching electrode, and therefore the problems that the use is inconvenient, a tester is dangerous when the electrode is operated by mistake in a boosting test process, the electrode is inconvenient to switch in a skill examination process, a student easily sees a test model and the like exist.
Disclosure of Invention
The invention aims to solve the technical problem of providing a switch cabinet partial discharge test model device, which can automatically control the lifting of a discharge electrode model without manually shaking a rocker to adjust a switching electrode.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a cubical switchboard partial discharge test model device, installs on the pressure release roof of cubical switchboard bus-bar room top for control discharge electrode model goes up and down, including sharp module, encoder and controller, sharp module includes step motor, linear slide rail, lead screw slider and electrode fixing slide, electrode fixing slide is connected with discharge electrode model and lead screw slider, lead screw and lead screw slider threaded connection, lead screw slider and linear slide rail sliding connection, sharp module drive discharge electrode model through electrode fixing slide and reciprocate, the controller is used for controlling step motor, the encoder is connected with step motor for feedback discharge electrode model's position signal, electrode fixing slide connects the electrode guide arm, discharge electrode model adopts the screw thread to install at electrode guide arm lower extreme.
Preferably, the electric actuator and the control unit further comprise a linear module support frame, the upper end of the linear module is fixed with the linear module support frame through a clamping plate, and the lower end of the linear module is fixed on the electric control mechanism fixing base through a linear module fixing seat.
Preferably, the encoder fixing frame is installed at the upper end of the straight line module supporting frame, the encoder fixing frame is provided with a plane fixing portion located above the straight line module, the encoder is installed on the plane fixing portion, and the encoder is connected with the stepping motor through a coupler.
Preferably, the electric control mechanism fixing base is provided with a shielding space, and the discharge electrode model is recovered into the shielding space in the idle test state.
Preferably, the electrode fixing slider is L-shaped.
The invention simulates various discharge types by automatically controlling the action of the discharge electrode model and the action of the corresponding copper bar electrode, thereby avoiding the inconvenience of manually adjusting the discharge model and simultaneously avoiding the misoperation of a tester.
The following detailed description of the present invention will be provided in conjunction with the accompanying drawings.
Drawings
The invention is further described with reference to the accompanying drawings and the detailed description below:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a partial schematic view of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
FIG. 5 is a schematic structural diagram of an electric actuator and a control unit;
fig. 6 is a schematic structural view of a flexible buffer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.
It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Such terms as "upper", "lower", and the like, indicating an orientation or positional relationship, are based only on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced devices/elements must have a particular orientation or be constructed and operated in a particular orientation and therefore should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, a cubical switchboard partial discharge analogue means based on automatic control, including simulation cubical switchboard 2, be equipped with generating line room 21 at the inboard top of simulation cubical switchboard 2, install a plurality of female rows in the generating line room 21 and correspond through the bolt and be fixed in female copper bar electrode 22 of arranging, the top of generating line room is equipped with installs the pressure release roof, install the experimental air gap model structure 1 that discharges of partial discharge on the pressure release roof.
Wherein, experimental air gap of partial discharge model structure 1 includes:
the discharge electrode model assembly 11 comprises discharge electrode models 111, wherein various discharge electrode models are placed into the bus chamber through a pressure relief top plate, the discharge electrode models are respectively and correspondingly arranged above the bus bars, and various discharge types are simulated through the action of the discharge electrode models and corresponding copper bar electrodes;
the electric actuating mechanism and the control unit are fixed on the pressure relief top plate and comprise a linear module 12, an encoder component 13 and a controller 14, wherein the linear module 12 comprises a stepping motor 121 and a lead screw sliding block 123, the lead screw sliding block 123 is driven by the stepping motor 121 to move linearly, the lead screw sliding block 123 drives the discharge electrode model 111 to move up and down, the encoder component 13 comprises an encoder 131, the encoder 131 is connected with the stepping motor 121 and is used for feeding back a position signal of the discharge electrode model 111, and the PLC controller 14 is used for controlling the linear module to operate;
the flexible buffer 3 is arranged on the copper bar electrode 22 or the discharge electrode model 111 and is used for buffering the contact impact between the copper bar electrode 22 and the discharge electrode model 111;
and a dust cover 15 covering the electric actuator and the control unit.
The simulation switch cabinet 2 is a real switch cabinet, different discharge electrode models are controlled to fall and act on corresponding copper bar electrodes through the electric actuating mechanism and the control unit, and various discharge electrode models can fall simultaneously to simulate various discharge types, so that various fault types in the running state of the simulation switch cabinet can be simulated, a plurality of discharge electrode models are put down at one time, interference signals and discharge are generated simultaneously, and synchronous addition of the interference signals can be realized.
In addition, in order to realize remote control, a camera 23 is installed on the cabinet body behind the bus bar room and used for collecting the up-and-down movement of the discharge electrode model 111 and a discharge image acted with the copper bar electrode 22. And the intelligent terminal is communicated with the electric actuating mechanism, the control unit and the camera to monitor the discharging condition and control the electric actuating mechanism and the control unit.
Therefore, the running state of the discharge model can be monitored in real time through the camera, and the reliable running of the testing device is guaranteed. The electric actuating mechanism and the control unit of the discharge model have a remote communication function, and when a user conducts a test, the discharge type can be adjusted through intelligent terminal background operating software according to the requirement of the user, so that various discharge electrode models can be remotely, visually and freely and automatically controlled.
The discharge electrode model assembly 11 further comprises an electrode guide rod 112 and an electrode fixing sliding block 114, wherein the electrode fixing sliding block 114 is connected with the electrode guide rod 112, and the discharge electrode model 111 is installed at the lower end of the electrode guide rod by threads.
Specifically, the linear module 12 further includes a linear slide rail 124 and a lead screw 122, the lead screw 122 is in threaded connection with a lead screw slider 123, the lead screw slider 123 is in sliding connection with the linear slide rail 124, and the electrode fixing slider 114 is connected with the lead screw slider 123.
Further, electric actuator and control unit still include sharp module support frame 125, the upper end of sharp module is fixed with sharp module support frame through splint 16, the lower extreme of sharp module is fixed in electric control mechanism unable adjustment base 10 through sharp module fixing base 127, electric control mechanism unable adjustment base 10 is fixed in the pressure release roof through the bolt.
Specifically, encoder subassembly 13 is still including the encoder mount 132 of installation encoder, encoder mount 132 is installed to the upper end of sharp module support frame, the encoder mount is equipped with the plane fixed part that is located sharp module top, encoder 131 installs on the plane fixed part, the encoder passes through shaft coupling 133 and is connected with step motor 121.
In addition, in order to guide the electrode guide rod 112, the electronic control mechanism fixing base 10 is provided with a guide seat 113, and the guide seat is provided with a guide hole matched with the electrode guide rod 112.
The electric control mechanism fixing base 10 is provided with a shielding space, and the discharge electrode model is recovered into the shielding space in the idle state of the test.
As described with reference to fig. 6, the flexible buffer 3 includes a buffer upper end shell 31, a buffer lower end shell 32, a buffer fastener 33 connected between the buffer upper end shell and the buffer lower end shell, and a spring 34 mounted on the buffer fastener and elastically supported between the buffer upper end shell and the buffer lower end shell.
The buffer lower end shell is provided with a guide hole 321, the buffer upper end shell is provided with a guide post 311 which is matched with the guide hole in a guide mode, the lower end of the spring is installed in the guide hole, and the guide post is provided with a spring installation groove which is matched with the upper end of the spring. Of course, the positions of the guide posts and the guide holes can be interchanged, namely, the upper end shell of the buffer is provided with the guide holes, and the lower end shell of the buffer is provided with the guide posts which are matched with the guide holes in a guiding mode.
Further, the top of buffer upper end shell is equipped with the mounting hole, the buffer fastener is including the screw head that is located the mounting hole and passing buffer upper end shell and the screw rod of buffer lower end shell, screw rod and copper bar electrode zonulae occludens.
The flexible buffer can ensure the reliable contact between the discharge electrode and the copper bar electrode, and simultaneously, the discharge electrode model is prevented from bearing excessive stress and the service life is shortened.
Because the light in the bus chamber is not good, the camera is preferably an infrared camera, and clearer images can be collected.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in other forms without departing from the spirit or essential characteristics thereof. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (5)
1. The utility model provides a cubical switchboard partial discharge test model device installs on the pressure release roof of cubical switchboard generating line room top for control discharge electrode model goes up and down, it is characterized in: including sharp module, encoder and controller, sharp module includes step motor, linear slide rail, lead screw slider and the fixed slider of electrode, the fixed slider of electrode is connected with discharge electrode model and lead screw slider, lead screw and lead screw slider threaded connection, lead screw slider and linear slide rail sliding connection, sharp module drive discharge electrode model through the fixed slider of electrode and reciprocate, the controller is used for controlling step motor, the encoder is connected with step motor for feedback discharge electrode model's position signal, the fixed slider of electrode connects the electrode guide arm, discharge electrode model adopts the screw thread to install at electrode guide arm lower extreme.
2. The partial discharge test model device of the switch cabinet according to claim 1, characterized in that: the electric actuating mechanism and the control unit further comprise a linear module supporting frame, the upper end of the linear module is fixed with the linear module supporting frame through a clamping plate, and the lower end of the linear module is fixed on the electric control mechanism fixing base through a linear module fixing base.
3. The partial discharge test model device of the switch cabinet according to claim 2, characterized in that: the encoder fixing frame is installed at the upper end of the linear module supporting frame and is provided with a plane fixing portion located above the linear module, the encoder is installed on the plane fixing portion and is connected with the stepping motor through a coupler.
4. The partial discharge test model device of the switch cabinet according to claim 2, characterized in that: the electric control mechanism fixing base is provided with a shielding space, and the discharge electrode model is recovered into the shielding space in an idle test state.
5. The partial discharge test model device of the switch cabinet according to claim 1, characterized in that: the electrode fixing sliding block is L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911133541.0A CN110865285A (en) | 2019-11-19 | 2019-11-19 | Switch cabinet partial discharge test model device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911133541.0A CN110865285A (en) | 2019-11-19 | 2019-11-19 | Switch cabinet partial discharge test model device |
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| Publication Number | Publication Date |
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| CN110865285A true CN110865285A (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911133541.0A Pending CN110865285A (en) | 2019-11-19 | 2019-11-19 | Switch cabinet partial discharge test model device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203981831U (en) * | 2014-05-29 | 2014-12-03 | 国网山西省电力公司电力科学研究院 | A kind of local discharge of gas-insulator switchgear simulation test device |
| CN104859455A (en) * | 2015-06-16 | 2015-08-26 | 南车株洲电力机车有限公司 | Current collecting head device |
| CN104901382A (en) * | 2015-06-16 | 2015-09-09 | 南车株洲电力机车有限公司 | Charging system |
| CN105004970A (en) * | 2015-03-16 | 2015-10-28 | 华北电力大学 | Switching device of high-voltage partial discharge models under high air pressure |
| CN204789875U (en) * | 2015-05-04 | 2015-11-18 | 国家电网公司 | Cubical switchboard partial discharge detector device |
| CN206497176U (en) * | 2017-01-04 | 2017-09-15 | 广西电网有限责任公司电力科学研究院 | A kind of electric device for switch discharges model |
| CN108519534A (en) * | 2018-05-30 | 2018-09-11 | 南昌华勤电子科技有限公司 | Electrostatic discharge testing system |
| CN211785886U (en) * | 2019-11-19 | 2020-10-27 | 国网浙江平湖市供电有限公司 | Automatic control electric actuator for simulating partial discharge of switch cabinet |
-
2019
- 2019-11-19 CN CN201911133541.0A patent/CN110865285A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203981831U (en) * | 2014-05-29 | 2014-12-03 | 国网山西省电力公司电力科学研究院 | A kind of local discharge of gas-insulator switchgear simulation test device |
| CN105004970A (en) * | 2015-03-16 | 2015-10-28 | 华北电力大学 | Switching device of high-voltage partial discharge models under high air pressure |
| CN204789875U (en) * | 2015-05-04 | 2015-11-18 | 国家电网公司 | Cubical switchboard partial discharge detector device |
| CN104859455A (en) * | 2015-06-16 | 2015-08-26 | 南车株洲电力机车有限公司 | Current collecting head device |
| CN104901382A (en) * | 2015-06-16 | 2015-09-09 | 南车株洲电力机车有限公司 | Charging system |
| CN206497176U (en) * | 2017-01-04 | 2017-09-15 | 广西电网有限责任公司电力科学研究院 | A kind of electric device for switch discharges model |
| CN108519534A (en) * | 2018-05-30 | 2018-09-11 | 南昌华勤电子科技有限公司 | Electrostatic discharge testing system |
| CN211785886U (en) * | 2019-11-19 | 2020-10-27 | 国网浙江平湖市供电有限公司 | Automatic control electric actuator for simulating partial discharge of switch cabinet |
Non-Patent Citations (1)
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