CN208423456U - A kind of neutral point complete set of protective apparatus - Google Patents
A kind of neutral point complete set of protective apparatus Download PDFInfo
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- CN208423456U CN208423456U CN201821025638.0U CN201821025638U CN208423456U CN 208423456 U CN208423456 U CN 208423456U CN 201821025638 U CN201821025638 U CN 201821025638U CN 208423456 U CN208423456 U CN 208423456U
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- electrode
- crossbeam
- connect
- neutral point
- complete set
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- 230000007935 neutral effect Effects 0.000 title claims abstract description 25
- 230000001681 protective effect Effects 0.000 title claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 26
- 239000004411 aluminium Substances 0.000 claims description 26
- 239000012212 insulator Substances 0.000 claims description 22
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 230000004224 protection Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model provides a kind of neutral point complete set of protective apparatus, including column, crossbeam, disconnecting switch, arrester and second electrode, one end of column and the lower end surface of crossbeam connect, the other end of column with car body for connecting, the side of beam upper end is arranged in disconnecting switch, disconnecting switch is electrically connected with transformer and crossbeam respectively, arrester is arranged on crossbeam, arrester includes first electrode, one end of first electrode is electrically connected with disconnecting switch, second electrode is connected on electrode support, the bottom end of electrode support is connected with a current transformer, current transformer is arranged on slack adjuster, the side of crossbeam is arranged in slack adjuster.The utility model solves the problems, such as that clearance distance is adjusted inconvenient and is not connected firmly by setting slack adjuster, and is connected by the way that the first connecting plate and the second connecting plate are arranged on the second electrode with electrode support, convenient for adjusting the concentricity of discharge electrode.
Description
Technical field
The utility model relates to power supply unit technical field, in particular to a kind of neutral point complete set of protective apparatus.
Background technique
Complete set of protective apparatus for transformer neutral point is mainly used for 110KV and 220KV transformer neutral point overvoltage protection.
The neutral point of earth-free transformer should install gap in 110kV and 220kV system, while the operation condition in gap having also been made
It is bright.So-called " gap " is actually the discharge electrode being made of a pair of sharp stick, and two electrodes assemble on the same axis, electrode head
Relatively, certain distance is kept, a lateral electrode connects transformer neutral point, another lateral electrode ground connection.Its working principle is that utilizing gap
The volt-second characteristic to discharge in an atmosphere, i.e., the discharge voltage in gap is higher under lightning wave effect, and discharges under power-frequency voltage
This lower characteristic of voltage, to meet the needs of two kinds of transformer neutral point thunder and lightning, power frequency overvoltage protections simultaneously.Transformer
Neutral point complete set of protective apparatus is also employed in mobile substation.Mobile substation refers to the equipment by traditional substation by ground
It moves on trailer, to realize its " mobility ".Mobile substation generally uses modularization making, and is moved by vehicle-mounted realization
It is dynamic, have the characteristics that compact-sized, convenient transportation, the perfect, flexibility and reliability of equipment and easy to maintain, while can also save expropriation of land,
The capital investment of civil engineering, equipment installation etc., is suitable for urban public distribution, residential quarters, industrial and mining enterprises and construction site
Etc. different places, the emergency service needs under accident maintenance and natural calamity can be met, to grid power supply system in substation's skill
Caused gadget has a power failure in art transformation, can also play emergency power.Common complete set of protective apparatus for transformer neutral point exists
The size for adjusting gap according to the actual situation is generally required when installing and using, and is especially mounted on the trailer of mobile substation
Neutral point complete set of protective apparatus often will cause clearance distance and discharge electrode be coaxial due to that can generate vibration in transportational process
The change of degree needs to re-start adjustment to clearance distance and discharge electrode concentricity when in use, therefore, on the one hand requires
The device flexible adjustment, another party then require each component firm and reliable connection of the device, but existing transformer neutral point at
Protective device is covered there is gap size and the adjustment inconvenience of discharge electrode concentricity, and stability is poor, and each component connection is not secured enough
The problems such as.
Summary of the invention
In consideration of it, by the way that slack adjuster is arranged, being solved the utility model proposes a kind of neutral point complete set of protective apparatus
The problem of clearance distance adjusts inconvenience and is not connected firmly, and by the way that the first connecting plate and the second connection are arranged on the second electrode
Plate is connected with electrode support, convenient for adjusting the concentricity of discharge electrode.
The technical solution of the utility model is achieved in that
A kind of neutral point complete set of protective apparatus, including column, crossbeam, disconnecting switch, arrester and second electrode, it is described vertical
One end of column is connect with the lower end surface of the crossbeam, and for connecting with car body, the disconnecting switch is set the other end of the column
The side in the upper surface of the crossbeam is set, the disconnecting switch is electrically connected with transformer and the crossbeam respectively, described lightning-arrest
Device be arranged on the crossbeam, the arrester includes first electrode, one end of the first electrode with it is described keep apart it is powered-down
Connection, the first electrode form gap with the second electrode that the crossbeam side is arranged in, and the second electrode is connected to electricity
On the pillar of pole, the bottom end of the electrode support is connected with a current transformer, and the current transformer setting is filled in gap adjustment
It sets, the side of the crossbeam is arranged in the slack adjuster.
Further, the disconnecting switch includes pedestal, and the pedestal is connect with the crossbeam, is provided on the pedestal
First insulator and second insulator, the top of the first insulator are provided with aluminium row, the top of the second insulator
It is provided with lower aluminium row, the upper aluminium row is electrically connected with transformer and the first electrode respectively, the lower aluminium row and the crossbeam
It is electrically connected, is also connected with an operator link on the pedestal, the operator link is connect with motor-operating mechanism, the electronic behaviour
Make the folding that mechanism controls lower aluminium row and upper aluminium row by the operator link.
Further, the arrester further includes third insulator, and the bottom end of the third insulator and the crossbeam connect
It connects, the top of the third insulator is connect with the first electrode.
Further, the slack adjuster includes screw rod, sliding block, first end plate and the second end plate, the first end
Plate and the second end plate are arranged on the crossbeam, and one end of the screw rod is held with the second end board shaft and connect, the screw rod
The other end passes through the first end plate and is provided with one handle, and the screw rod is connect with the first end plate bearing, on the screw rod
It is connected with sliding block, the upper surface of the sliding block is connect with the current transformer, and the two sides of the sliding block are each provided with a locking
Bar, guide groove is provided on the beam side wall, and the check lock lever passes through the guide groove and connect by nut with the crossbeam.
Further, the slack adjuster further includes graduated scale, and the guide groove is arranged in the graduated scale
Lower section.
Further, it is provided with the first connecting plate in the second electrode, is connected with first connecting plate
Two connecting plates, the second electrode are fixed on the electrode support by first connecting plate and the second connecting plate.
Compared with prior art, the utility model has the beneficial effects that
(1) the utility model solves clearance distance between discharge electrode and adjusts inconvenience by setting slack adjuster
Problem ensure that the stability of discharge voltage, preferably protect transformer.
(2) the utility model in the sliding block of slack adjuster by being arranged check lock lever, and passes through nut check in cross
Liang Shang ensure that the stability of second electrode connection, and pass through the connection of check lock lever and crossbeam, efficiently solves second electrode and connects
The problem of ground.
(3) the utility model is convenient convenient for the control of distance when gap adjustment by the way that graduated scale is arranged below guide groove
It adjusts.
(4) the utility model is connected by the way that the first connecting plate and the second connecting plate are arranged on the second electrode with electrode support
It connects, convenient for adjusting the concentricity of first electrode and second electrode.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only the preferred reality of the utility model
Example is applied, it for those of ordinary skill in the art, without any creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the overall schematic of the utility model.
Fig. 2 is the partial enlarged view of part A in Fig. 1.
Fig. 3 is the decomposition diagram of the utility model.
In figure, 1 it is column, 2 is crossbeam, 3 is disconnecting switch, 31 is pedestal, 32 is first insulator, 33 is the second insulation
Body, 34 for upper aluminium row, 35 are lower aluminium row, 36 are operator link, 37 are motor-operating mechanism, 4 are arrester, 41 are third insulation
Body, 42 be first electrode, 5 be second electrode, 51 be the first connecting plate, 52 be the second connecting plate, 6 be electrode support, 7 be electric current
Mutual inductor, 8 be slack adjuster, 81 be screw rod, 811 be handle, 82 be sliding block, 83 be check lock lever, 84 be guide groove, 85 be
End plate, 86 be the second end plate, 87 be graduated scale.
Specific embodiment
In order to be best understood from the utility model technology contents, three specific embodiments are provided below, and in conjunction with attached drawing to this
Utility model is described further.
Embodiment 1
Referring to FIG. 1 to FIG. 3, a kind of neutral point complete set of protective apparatus, including column 1, crossbeam 2, disconnecting switch 3, arrester 4
And second electrode 5, one end of the column 1 are connect with the lower end surface of the crossbeam 2, the other end of the column 1 is used for and vehicle
Body connection, the disconnecting switch 3 are arranged in the side of the upper surface of the crossbeam 2, the disconnecting switch 3 respectively with transformer and
The crossbeam 2 is electrically connected, and the arrester 4 is arranged on the crossbeam 2, and the arrester 4 includes first electrode 42, and described the
One end of one electrode 42 is electrically connected with the disconnecting switch 3, the first electrode 42 be arranged in the second of 2 side of crossbeam
Electrode 5 forms gap, and the second electrode 5 is connected on electrode support 6, and the bottom end of the electrode support 6 is connected with an electric current
Mutual inductor 7, the current transformer 7 are arranged on slack adjuster 8, and the slack adjuster 8 is arranged in the crossbeam 2
Side.By the way that slack adjuster 8 is arranged, adjusts second electrode 5 and moved along 2 direction of crossbeam, realize first electrode 42 and the
The adjusting in two electrodes, 5 gap solves the problems, such as that clearance distance is adjusted inconvenient between discharge electrode, ensure that the stabilization of discharge voltage
Property, preferably protect transformer.
Preferably, the disconnecting switch 3 includes pedestal 31, and the pedestal 31 is connect with the crossbeam 2, on the pedestal 31
It is provided with first insulator 32 and second insulator 33, the top of the first insulator 32 is provided with aluminium row 34, and described the
The top of two insulators 33 is provided with lower aluminium row 35, and the upper aluminium row 34 is electrically connected with transformer and the first electrode 42 respectively
It connects, the lower aluminium row 35 is electrically connected with the crossbeam 2, an operator link 36 is also connected on the pedestal 31, the operation connects
Bar 36 is connect with motor-operating mechanism 37, the motor-operating mechanism 37 by the operator link 36 control lower aluminium row 35 with it is upper
The folding of aluminium row 34.Instantly, it can be achieved that transformer neutral point ground connection runs when aluminium row 35 and upper aluminium row 34 are closed, aluminium arranges 35 instantly
When separating with upper aluminium row 34, the earth-free operation of transformer neutral point is realized, to avoid causing in transformer due to the system failure
Property point voltage increase and cause damage to transformer.
Preferably, the arrester 4 further includes third insulator 41, the bottom end of the third insulator 41 and the crossbeam
2 connections, the top of the third insulator 41 is connect with the first electrode 42.
Preferably, the slack adjuster 8 includes screw rod 81, sliding block 82, first end plate 85 and the second end plate 86, described
First end plate 85 and the second end plate 86 are arranged on the crossbeam 2, one end of the screw rod 81 and 86 bearing of the second end plate
Connection, the other end of the screw rod 81 pass through the first end plate 85 and are provided with one handle 811, the screw rod 81 and described first
85 bearing of end plate connects, and sliding block 82 is connected on the screw rod 81, and the upper surface of the sliding block 82 and the current transformer 7 connect
It connects, the two sides of the sliding block 82 are each provided with a check lock lever 83, are provided with guide groove 84, the check lock lever on 2 side wall of crossbeam
83 pass through the guide groove 84 and are connect by nut with the crossbeam 2.By the way that lock is arranged on the sliding block 82 of slack adjuster 8
Tightly bar 83, and through nut check on crossbeam 2, it ensure that the stability that second electrode 5 connects, and pass through check lock lever 83 and cross
The connection of beam 2 solves the problems, such as that second electrode 5 is grounded.
The application method of the utility model:
When in use, the upper aluminium row 34 in first insulator 32 is electrically connected with transformer first, and will be on arrester 4
First electrode 42 is electrically connected with upper aluminium row 34, is adjusted to first electrode 42 and the gap of second electrode 5, is unclamped at this time first
Nut on check lock lever 83 is moved horizontally with the rotate driving sliding block 82 of hand rotational handle 811, screw rod 81, second electrode 5 with
Sliding block 82 moves horizontally, and stops operating handle 811 when adjusting to suitable position, by the nut check on check lock lever 83, completes tune
Section.
A kind of neutral point complete set of protective apparatus provided in this embodiment solves electric discharge electricity by the way that slack adjuster 8 is arranged
Clearance distance adjusts inconvenient problem between pole, ensure that the stability of discharge voltage, preferably protects transformer；By
Check lock lever 83 is set, and in the sliding block 82 of slack adjuster 8 through nut check on crossbeam 2, ensure that second electrode 5 connects
The stability connect, and pass through the connection of check lock lever 83 and crossbeam 2, solve the problems, such as that second electrode 5 is grounded.
Embodiment 2
The present embodiment the difference from embodiment 1 is that, the slack adjuster 8 further includes graduated scale 87, the quarter
The lower section of the guide groove 84 is arranged in anale settting scale 87, by the way that graduated scale 87 is arranged below guide groove 84, when being convenient for gap adjustment
The control of distance facilitates adjusting.
Embodiment 3
The present embodiment and the difference of embodiment 1 and embodiment 2 are, are provided with the first connecting plate in the second electrode 5
51, it is connected with the second connecting plate 52 with first connecting plate 51, the second electrode 5 passes through first connecting plate 51
And second connecting plate 52 be fixed on the electrode support 6.The concentricity to first electrode 42 and second electrode 5 is needed before use
It is adjusted, by unclamping the first connecting plate 51 and the second connecting plate 52, it can be achieved that second electrode 5 rotates tune around electrode support 6
Section locks the first connecting plate 51 and the second connecting plate 52 after completing concentricity and adjusting.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of neutral point complete set of protective apparatus, including column, crossbeam, disconnecting switch, arrester and second electrode, feature exist
In, one end of the column is connect with the lower end surface of the crossbeam, the other end of the column for being connect with car body, it is described every
The side for closing the upper surface that the crossbeam is set is left, the disconnecting switch is electrically connected with transformer and the crossbeam respectively,
The arrester is arranged on the crossbeam, and the arrester includes first electrode, one end of the first electrode and it is described every
Powered-down connection is left, the first electrode forms gap, the second electrode with the second electrode that the crossbeam side is arranged in
Be connected on electrode support, the bottom end of the electrode support is connected with a current transformer, the current transformer setting
In gap regulating device, the side of the crossbeam is arranged in the slack adjuster.
2. a kind of neutral point complete set of protective apparatus as described in claim 1, which is characterized in that the disconnecting switch includes bottom
Seat, the pedestal are connect with the crossbeam, and first insulator and second insulator, first insulation are provided on the pedestal
The top of body is provided with aluminium row, and the top of the second insulator is provided with lower aluminium row, the upper aluminium row respectively with transformer
It being electrically connected with the first electrode, the lower aluminium row is electrically connected with the crossbeam, an operator link is also connected on the pedestal,
The operator link is connect with motor-operating mechanism, the motor-operating mechanism by the operator link control lower aluminium row with it is upper
The folding of aluminium row.
3. a kind of neutral point complete set of protective apparatus as described in claim 1, which is characterized in that the arrester further includes third
The bottom end of insulator, the third insulator is connect with the crossbeam, the top of the third insulator and the first electrode
Connection.
4. a kind of neutral point complete set of protective apparatus as described in claim 1, which is characterized in that the slack adjuster includes
Screw rod, sliding block, first end plate and the second end plate, the first end plate and the second end plate are arranged on the crossbeam, the screw rod
One end hold and connect with the second end board shaft, the other end of the screw rod passes through the first end plate and is provided with one handle, institute
It states screw rod to connect with the first end plate bearing, sliding block, the upper surface of the sliding block and the electric current is connected on the screw rod
Mutual inductor connection, the two sides of the sliding block are each provided with a check lock lever, guide groove, the check lock lever are provided on the beam side wall
It is connect across the guide groove and by nut with the crossbeam.
5. a kind of neutral point complete set of protective apparatus as claimed in claim 4, which is characterized in that the slack adjuster also wraps
Graduated scale is included, the lower section of the guide groove is arranged in the graduated scale.
6. a kind of neutral point complete set of protective apparatus as described in claim 1, which is characterized in that be provided in the second electrode
First connecting plate is connected with the second connecting plate with first connecting plate, and the second electrode is connected by described first
Plate and the second connecting plate are fixed on the electrode support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821025638.0U CN208423456U (en) | 2018-06-29 | 2018-06-29 | A kind of neutral point complete set of protective apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821025638.0U CN208423456U (en) | 2018-06-29 | 2018-06-29 | A kind of neutral point complete set of protective apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208423456U true CN208423456U (en) | 2019-01-22 |
Family
ID=65106983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821025638.0U Active CN208423456U (en) | 2018-06-29 | 2018-06-29 | A kind of neutral point complete set of protective apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208423456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635355A (en) * | 2019-10-09 | 2019-12-31 | 杭州富阳锐明科技有限公司 | Gap lightning protection device based on electromagnetic transformation |
| CN114142347A (en) * | 2021-11-29 | 2022-03-04 | 国网湖北省电力有限公司武汉市新洲区供电公司 | High-safety lightning arrester for electric power facilities |
-
2018
- 2018-06-29 CN CN201821025638.0U patent/CN208423456U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635355A (en) * | 2019-10-09 | 2019-12-31 | 杭州富阳锐明科技有限公司 | Gap lightning protection device based on electromagnetic transformation |
| CN114142347A (en) * | 2021-11-29 | 2022-03-04 | 国网湖北省电力有限公司武汉市新洲区供电公司 | High-safety lightning arrester for electric power facilities |
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| CP03 | Change of name, title or address |
Address after: No. 32 Haifu Road, Meilan District, Haikou City, Hainan Province, 571100 Patentee after: Haikou Substation Operation and Inspection Branch of Hainan Power Grid Co.,Ltd. Address before: No.23, hairuihou Road, Longhua District, Haikou City, Hainan Province, 570100 Patentee before: HAINAN POWER GRID Co.,Ltd. HAINAN POWER TRANSMISSION AND SUBSTATION MAINTENANCE BRANCH |