CN106597040B - A kind of harmonic device of rectangular impulse current test and experimental loop - Google Patents
A kind of harmonic device of rectangular impulse current test and experimental loop Download PDFInfo
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- CN106597040B CN106597040B CN201611201128.XA CN201611201128A CN106597040B CN 106597040 B CN106597040 B CN 106597040B CN 201611201128 A CN201611201128 A CN 201611201128A CN 106597040 B CN106597040 B CN 106597040B
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- 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
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/08—Cooling, heating or ventilating arrangements
- H01C1/084—Cooling, heating or ventilating arrangements using self-cooling, e.g. fins, heat sinks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C13/00—Resistors not provided for elsewhere
- H01C13/02—Structural combinations of resistors
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a kind of harmonic device of rectangular impulse current test and experimental loops, including build-out resistor, build-out resistor mounting device and thread guide devices；Build-out resistor is set to inside build-out resistor mounting device, and build-out resistor mounting device is connect with thread guide devices.The invention also discloses the cascaded structures and parallel-connection structure of above-mentioned harmonic device.The present invention solves the case where rectangular impulse current waveform wave rear caused by square wave impact current generator impedance loop and testing resistance piece impedance mismatch can not return to zero；Can as needed by multiple the device of the invention in parallel or in series, it is simple, convenient quick in parallel or in series to reach required build-out resistor numerical value；Lead block is set, so that when lead, without dismantling lead bolt, the step of lead block to be directly inserted into the connecting groove opened up on top electrode radiating block, avoids cumbersome disassembly lead bolt.
Description
[technical field]
It is tested the present invention relates to rectangular impulse current waveform adjustment technical field more particularly to a kind of rectangular impulse current
Harmonic device and experimental loop.
[background technique]
Arrester core component is zinc oxide resistance sheet, carries out through-flow energy to zinc oxide resistance sheet using rectangular impulse current
The examination of power is the common method of current national standard and international standard.For 10kV and arrester below, rectangular impulse electricity
Stream view the requirement in peak value be generally 150A and hereinafter, exist at this time laboratory square wave impact current generator impedance loop and
The case where resistor disc impedance mismatch, showing as rectangular impulse current waveform wave rear can not return to zero.
Since the square wave impact current generator ontology in laboratory is usually fixed, adjusting square wave impact current generator
Impedance loop can only using fine tuning by the way of carry out, result generally can not be met the requirements.
[summary of the invention]
Adjust difficult to solve square wave impact current generator impedance loop in the prior art, that there are processes is numerous for waveform adjustment
Trivial, inconvenient technical problem, the present invention provides a kind of harmonic device of rectangular impulse current test and experimental loops, can
As needed in parallel or in series by multiple the device of the invention, to reach required build-out resistor numerical value, in parallel or string
Join simple, convenient quick；Lead block is set, so that, without dismantling lead bolt, being directly inserted into lead block when lead
The connecting groove opened up on electrode radiating block, the step of avoiding cumbersome disassembly lead bolt.
To achieve the above object, the invention adopts the following technical scheme:
A kind of harmonic device of rectangular impulse current test, the harmonic device include build-out resistor, build-out resistor installation dress
It sets and thread guide devices；The thread guide devices are connect with build-out resistor mounting device；
The build-out resistor mounting device includes build-out resistor clamping part and build-out resistor radiating part connected to it；It is described
Build-out resistor clamping part includes top electrode, top electrode fixed card buckle, lower electrode and lower electrode fixed card buckle；The top electrode installation
Inside the top electrode fixed card buckle, the lower electrode is installed on inside the lower electrode fixed card buckle, the top electrode with
Lower electrode is opposite to be installed；The top electrode fixed card buckle is connected through a screw thread with lower electrode fixed card buckle, and the build-out resistor is set
It is placed in inner space composed by top electrode fixed card buckle and lower electrode fixed card buckle.
As a further improvement of the present invention, the build-out resistor radiating part includes top electrode radiating block and the heat dissipation of lower electrode
Block；The top electrode radiating block is bolted with the top electrode, and the lower electrode radiating block passes through with the lower electrode
It is bolted；Connecting groove is opened up on the top electrode radiating block, the lower electrode radiating block extends outward connection bump, institute
It states connecting groove and is connect respectively with the thread guide devices with the connection bump.
As a further improvement of the present invention, the top electrode radiating block and lower electrode radiating block open up for outer wall one week
Thermally conductive airslide.
The thread guide devices include lead block and pedestal；Top electrode lead bolt, the lead are set in the lead block
Block extends outward lead protrusions, and the lead protrusions and connecting groove match and be inserted into the connecting groove；It is described
Base groove is opened up on pedestal, the base groove matches with the connection bump, and the connection bump is inserted into the bottom
In seat groove, lower contact conductor bolt is also set up on the pedestal.
As a further improvement of the present invention, the connecting groove and the depth of the base groove are all larger than corresponding recesses
Diameter；The size of the connecting groove and connection bump matches.
As a further improvement of the present invention, the top electrode radiating block, top electrode, lower electrode, lower electrode radiating block, bottom
The material of seat and lead block is aluminium；The material of the top electrode fixed card buckle and lower electrode fixed card buckle is polytetrafluoroethyl-ne
Alkene.
It as a further improvement of the present invention, further include at least one set of build-out resistor mounting device, wherein in thread guide devices
Lead block connect with the connecting groove in first group of build-out resistor mounting device, the connection in this group of build-out resistor mounting device
The raised connecting groove with another group of adjacent Matching installation device is connected, and the connection in last group of Matching installation device is convex
It rises and is connect with the base groove on the pedestal in thread guide devices, multiple groups build-out resistor mounting device is sequentially connected from head to tail to form mutually
Cascaded structure.
It as a further improvement of the present invention, further include a splice bar, at least one set of build-out resistor mounting device and one
A lead block opens up at least two through-holes on the splice bar, opens up on the pedestal corresponding to the number of openings on splice bar
Base groove, the connection bump of build-out resistor mounting device connects with corresponding base groove, the lead protrusions of lead block with
The connecting groove connection of build-out resistor mounting device connection, the contact conductor bolt in lead block pass through the through-hole, make with it is upper
The connected lead block of contact conductor bolt is connected in parallel；Multiple groups build-out resistor mounting device forms structure parallel with one another.
As a further improvement of the present invention, further include a splice bar, multiple groups build-out resistor mounting device and multiple draw
Line block opens up at least two through-holes on the splice bar, bottom corresponding with the number of openings on splice bar is opened up on the pedestal
Seat groove, multiple build-out resistor mounting devices are arranged side by side, and its connection bump is connected with corresponding base groove, first layer
The connecting groove of build-out resistor mounting device is connect with second layer build-out resistor mounting device or lead block, second layer build-out resistor
Mounting device is connect with third layer build-out resistor mounting device or another lead block, and every layer sets gradually；All lead block
The connecting groove that lead protrusions are connect with build-out resistor mounting device connects, and the contact conductor bolt in lead block passes through described logical
Hole is connected in parallel the lead block being connected with top electrode lead bolt；Multiple groups build-out resistor mounting device forms serial-parallel group
Close structure.
A kind of circuit of square wave impact current generator, including weighing the harmonic device, harmonic device and test product resistance
Piece is arranged in parallel；The build-out resistor selects zinc oxide resistance sheet, and square wave discharge capacity is 800A, 1200A, direct current ginseng
Examining voltage is 0.8kV and 1.3kV.
Compared with the existing technology, the invention has the following advantages:
Harmonic device in the present invention passes through setting build-out resistor mounting device and thread guide devices, build-out resistor clamping part
Including top electrode, top electrode fixed card buckle, lower electrode and lower electrode fixed card buckle, and top electrode fixed card buckle is fixed with lower electrode
Threaded connection is snapped through, using being able to solve square wave impact current generator impedance loop and testing resistance piece in the loop
The case where rectangular impulse current waveform wave rear caused by impedance mismatch can not return to zero, ensure that the personal safety of disassembly personnel.
Further, top electrode is installed by bolt respectively in the top electrode being connected directly with build-out resistor piece and lower electrode to dissipate
Heat block and lower electrode radiating block, can prevent during use, the heat damages that build-out resistor piece releases itself, in time
The heat for generating build-out resistor piece conduct.
Further, lead block is set, so that, without dismantling lead bolt, lead block is directly inserted into top electrode when lead
The connecting groove opened up on radiating block, the step of avoiding cumbersome disassembly lead bolt.
To make square wave impact current generator impedance loop match with testing resistance piece impedance, the increased build-out resistor of institute
Numerical value needs be constantly adjusted, in adjustment, it may be necessary to build-out resistor piece progress operation in series or in parallel.Multiple groups
Build-out resistor mounting device is sequentially connected end to end realization and is serially connected.Contact conductor bolt in lead block passes through the through-hole,
It is connected in parallel the lead block being connected with top electrode lead bolt；The lead protrusions of lead block are connect with build-out resistor mounting device
Connecting groove connection, the connection of the connection bump of build-out resistor mounting device and corresponding base groove realizes parallel connection.It can basis
It needs multiple the device of the invention in parallel or in series, to reach required build-out resistor numerical value, grasps in parallel or in series
Make simple, convenient and efficient.
A kind of circuit of square wave impact current generator of the invention is set by the way that harmonic device is in parallel with test product resistor disc
It sets, so that square wave impact current generator impedance loop is matched with testing resistance piece impedance, solve rectangular impulse current
The case where rectangular impulse current waveform wave rear caused by device impedance loop and testing resistance piece impedance mismatch can not return to zero, also protects
The personal safety of disassembly personnel is demonstrate,proved.
[Detailed description of the invention]
Fig. 1 is the structural schematic diagram of harmonic device in the present invention；
Fig. 2 is the cascaded structure schematic diagram of harmonic device in one embodiment of the present invention；
Fig. 3 is the parallel-connection structure schematic diagram of harmonic device in one embodiment of the present invention.
[specific embodiment]
Below in conjunction with attached drawing of the invention, technical solution of the present invention is clearly and completely described.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example belongs to the range of this reality invention protection.
As shown in Figure 1, harmonic device of the invention, including top electrode 3, top electrode fixed card buckle 4, lower electrode 5 and lower electricity
Pole fixed card buckle 6；Top electrode 3 is installed on inside top electrode fixed card buckle 4, and lower electrode 5 is installed in lower electrode fixed card buckle 6
Portion, top electrode 3 and the opposite installation of lower electrode 5；Internal screw thread, lower 6 outer wall of electrode fixed card buckle is arranged in 4 inner wall of top electrode fixed card buckle
External screw thread is set, and top electrode fixed card buckle 4 is connected through a screw thread with lower electrode fixed card buckle 6, makes top electrode fixed card buckle 4 under
Cavity is formed between electrode fixed card buckle 6, for placing build-out resistor piece 14.When top electrode fixed card buckle 4 and lower electrode are fixed
After buckle 6 fastens, build-out resistor piece 14 is directly contacted with top electrode 3 and lower electrode 5.Wherein top electrode 3, lower electrode 5 material
Matter is aluminium, is realized conductive；The material of top electrode fixed card buckle 4 and lower electrode fixed card buckle 6 is polytetrafluoroethylene (PTFE), is insulation material
Material.
To prevent during use, the heat damages itself that build-out resistor piece 14 releases are needed build-out resistor
The heat that piece 14 generates conducts, therefore leads to respectively in the top electrode 3 being connected directly with build-out resistor piece 14 and lower electrode 5
Bolt installation top electrode radiating block 1 and lower electrode radiating block 7 are crossed, in order to accelerate radiating rate, in top electrode radiating block 1 and lower electricity
Outer wall one week of pole radiating block 7 opens up multiple thermally conductive airslides 2, after opening up thermally conductive airslide 2, increases top electrode radiating block
1 and lower electrode radiating block 7 heat dissipation area cooling it is fast, wherein the material of top electrode radiating block and lower electrode radiating block is aluminium.
To avoid the cumbersome of installing and dismounting lead, it is provided with lead block 11, top electrode lead bolt is set in lead block 11
12, lead block 11 extends outward lead protrusions, and connecting groove 9, lead protrusions and connecting groove are opened up on top electrode radiating block 1
9 match, and the depth of connecting groove 9 is greater than the diameter of connecting groove；It further include pedestal 10, it is recessed to open up pedestal on pedestal 10
Slot, lower electrode radiating block 7 extend outward connection bump 8, and connection bump 8 matches with base groove, and the depth of base groove
Degree is greater than the diameter of connecting groove, also sets up lower contact conductor bolt 13 on pedestal.Wherein, lead block, the material of pedestal are
Aluminium.In use, two electric wires are connect with top electrode lead bolt 12 with lower contact conductor bolt 13 respectively, then by lead
Block 11 is inserted into the connecting groove 9 opened up on top electrode radiating block 1, and lower electrode radiating block 7 is extended outward connection bump 8
It is inserted into 10 groove of pedestal, the build-out resistor piece work being placed between top electrode 3 and lower electrode 5 can be realized.
To make square wave impact current generator impedance loop match with testing resistance piece impedance, the increased build-out resistor of institute
Numerical value needs be constantly adjusted, in adjustment, it may be necessary to build-out resistor piece progress operation in series or in parallel.Series connection
When structure as shown in Fig. 2, the connection bump 8 of the lower electrode radiating block 7 of one group of impedance-matching device is inserted into another group of resistance
In the connecting groove 9 of the top electrode radiating block 1 of anti-coalignment.Structure when in parallel is as shown in figure 3, pass through splice bar 15
Realize the connection of at least two groups impedance-matching device.At least two through-holes, top electrode lead bolt are wherein opened up on splice bar 15
12 pass through through-hole, are connected in parallel at least two lead block 11, and open up and the number of openings on splice bar 15 on pedestal 10
And the corresponding base groove in position, for being connect with the connection bump 8 of lower electrode radiating block 7.At least two lead block 11 are divided
Be not connected with the connecting groove 9 of top electrode radiating block 1, and other related devices connected, can be realized build-out resistor and
Connection.
Harmonic device combination of the invention is not limited to series connection and parallel-connection structure listed above, can select according to demand
Select the form of series, parallel combination.At least two through-holes are opened up on splice bar 15, opened up on the pedestal 10 on splice bar
The corresponding base groove of number of openings, multiple build-out resistor mounting devices are arranged side by side, and its connection bump 8 and corresponding pedestal
Groove connection, the connecting groove 9 and second layer build-out resistor mounting device or lead block of the build-out resistor mounting device of first layer
11 connections, second layer build-out resistor mounting device are connect with third layer build-out resistor mounting device or another lead block 11, often
Layer is set gradually；The connecting groove 9 that the lead protrusions of all lead block 11 are connect with build-out resistor mounting device connects；Lead block
Contact conductor bolt 12 on 11 passes through the through-hole, so that the lead block 11 being connected with top electrode lead bolt 12 is in parallel even
It connects；Multiple groups build-out resistor mounting device forms series-parallel combination structure.
In addition, also a kind of circuit of square wave impact current generator of the present invention, including weighing harmonic device of the invention, harmonic
Device is arranged in parallel with test product resistor disc；In use, the zinc oxide resistance sheet square wave discharge capacity that build-out resistor 14 is selected is
800A, 1200A, DC reference voltage are 0.8kV and 1.3kV.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (9)
1. a kind of harmonic device of rectangular impulse current test, which is characterized in that the harmonic device include build-out resistor (14),
With resistor installing device and thread guide devices；The thread guide devices are connect with build-out resistor mounting device；
The build-out resistor mounting device includes build-out resistor clamping part and build-out resistor radiating part connected to it；The matching
Resistance clamping part includes top electrode (3), top electrode fixed card buckle (4), lower electrode (5) and lower electrode fixed card buckle (6)；On described
Electrode (3) is installed on top electrode fixed card buckle (4) inside, and the lower electrode (5) is installed on the lower electrode fixed card buckle
(6) internal, the top electrode (3) and the opposite installation of lower electrode (5)；The top electrode fixed card buckle (4) and lower electrode fixing card
Button (6) is connected through a screw thread, and the build-out resistor (14) is arranged in top electrode fixed card buckle (4) and lower electrode fixed card buckle (6)
In the inner space of composition；
The build-out resistor radiating part includes top electrode radiating block (1) and lower electrode radiating block (7)；The top electrode radiating block
(1) it is bolted with the top electrode (3), the lower electrode radiating block (7) and the lower electrode (5) are connected by bolt
It connects；It is opened up connecting groove (9) on the top electrode radiating block (1), the lower electrode radiating block (7) extends outward connection bump
(8), the connecting groove (9) connect with the thread guide devices respectively with the connection bump (8).
2. the harmonic device of rectangular impulse current test according to claim 1, which is characterized in that the top electrode heat dissipation
Block (1) opens up thermally conductive airslide (2) in outer wall one week with lower electrode radiating block (7).
3. the harmonic device of rectangular impulse current test according to claim 1, which is characterized in that the thread guide devices packet
Include lead block (11) and pedestal (10)；Top electrode lead bolt (12) are set on the lead block (11), the lead block (11)
Lead protrusions are extended outward, the lead protrusions and connecting groove (9) match and are inserted into the connecting groove (9)；
Base groove is opened up on the pedestal (10), the base groove matches with the connection bump (8), the connection bump
(8) it is inserted into the base groove, lower contact conductor bolt (13) is also set up on the pedestal (10).
4. the harmonic device of rectangular impulse current test according to claim 3, which is characterized in that the connecting groove
(9) corresponding recesses diameter is all larger than with the depth of the base groove；The size of the connecting groove (9) and connection bump (8)
Match.
5. the harmonic device of rectangular impulse current test according to claim 3, which is characterized in that the top electrode heat dissipation
Block (1), top electrode (3), lower electrode (5), lower electrode radiating block (7), pedestal (20) and lead block (11) material be aluminium；
The material of the top electrode fixed card buckle (4) and lower electrode fixed card buckle (6) is polytetrafluoroethylene (PTFE).
6. the harmonic device of rectangular impulse current test according to claim 3, which is characterized in that further include at least one set
Build-out resistor mounting device, wherein the lead block in thread guide devices (11) and the connection in first group of build-out resistor mounting device are recessed
Slot (9) connects, the company in connection bump (8) and another group of adjacent Matching installation device in this group of build-out resistor mounting device
It connects groove (9) to be connected, the bottom on the pedestal (10) in connection bump (8) and thread guide devices in last group of Matching installation device
Seat groove connection, multiple groups build-out resistor mounting device, which is sequentially connected from head to tail to form, is serially connected structure.
7. the harmonic device of rectangular impulse current test according to claim 3, which is characterized in that further include one and connect
Plate (15), at least one set of build-out resistor mounting device and a lead block (11) open up at least two on the splice bar (15)
Through-hole opens up base groove corresponding with the number of openings on splice bar on the pedestal (10), build-out resistor mounting device
Connection bump (8) is connected with corresponding base groove, what the lead protrusions of lead block (11) were connect with build-out resistor mounting device
Connecting groove (9) connection；Contact conductor bolt (12) in lead block (11) passes through the through-hole, so that with top electrode lead spiral shell
The connected lead block (11) of bolt (12) is connected in parallel；Multiple groups build-out resistor mounting device forms structure parallel with one another.
8. the harmonic device of rectangular impulse current test according to claim 4, which is characterized in that further include one and connect
Plate (15), multiple groups build-out resistor mounting device and multiple lead block (11) open up at least two through-holes on the splice bar (15),
Base groove corresponding with the number of openings on splice bar is opened up on the pedestal (10), multiple build-out resistor mounting devices are side by side
Setting, and its connection bump (8) is connected with corresponding base groove, the connecting groove of the build-out resistor mounting device of first layer
(9) it is connect with second layer build-out resistor mounting device or lead block (11), second layer build-out resistor mounting device and third layer
It is connected with resistor installing device or another lead block (11), every layer sets gradually；The lead protrusions of all lead block (11) with
Connecting groove (9) connection of build-out resistor mounting device connection；Contact conductor bolt (12) in lead block (11) passes through described
Through-hole, so that the lead block (11) being connected with top electrode lead bolt (12) is connected in parallel；Multiple groups build-out resistor mounting device shape
At series connection-parallel combination structure.
9. a kind of circuit of square wave impact current generator is adjusted including harmonic device described in claim 1 to 8 any one
Wave apparatus is arranged in parallel with test product resistor disc；The build-out resistor (14) selects zinc oxide resistance sheet, square wave discharge capacity
For 800A, 1200A, DC reference voltage is 0.8kV and 1.3kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611201128.XA CN106597040B (en) | 2016-12-22 | 2016-12-22 | A kind of harmonic device of rectangular impulse current test and experimental loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611201128.XA CN106597040B (en) | 2016-12-22 | 2016-12-22 | A kind of harmonic device of rectangular impulse current test and experimental loop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106597040A CN106597040A (en) | 2017-04-26 |
| CN106597040B true CN106597040B (en) | 2019-02-22 |
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| CN201611201128.XA Active CN106597040B (en) | 2016-12-22 | 2016-12-22 | A kind of harmonic device of rectangular impulse current test and experimental loop |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346425C (en) * | 2004-09-24 | 2007-10-31 | 西安交通大学 | Wave regulating resistor for regulating inpulse current wave form |
| CN200950428Y (en) * | 2006-09-25 | 2007-09-19 | 深圳市银星电力电子有限公司 | Novel frequency division shunting separator |
| CN101227152B (en) * | 2007-11-29 | 2010-04-14 | 国网电力科学研究院 | High-capacity square wave impact current generator |
| CN101916994B (en) * | 2010-08-06 | 2012-08-22 | 深圳Abb银星避雷器有限公司 | Large through-flow frequency division and current-distribution type separator |
| CN103048501A (en) * | 2012-12-19 | 2013-04-17 | 苏州泰思特电子科技有限公司 | Impact current generating device |
| CN103105542B (en) * | 2013-01-17 | 2015-01-14 | 清华大学 | High voltage electrode device for pulsed electro-acoustic space charge measuring system |
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Effective date of registration: 20210817 Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an province high tech Zone No. 7 Tang Xing Lu Patentee before: CHINA XD ELECTRIC Co.,Ltd. Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |
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Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: Xi'an High Voltage Electrical Apparatus Research Institute Co.,Ltd. Address before: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |
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