CN209625948U - A kind of 500kV exchange polymeric housed metal oxide arrester - Google Patents
A kind of 500kV exchange polymeric housed metal oxide arrester Download PDFInfo
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- CN209625948U CN209625948U CN201822076920.8U CN201822076920U CN209625948U CN 209625948 U CN209625948 U CN 209625948U CN 201822076920 U CN201822076920 U CN 201822076920U CN 209625948 U CN209625948 U CN 209625948U
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Abstract
The utility model discloses a kind of 500kV to exchange polymeric housed metal oxide arrester, including grading ring and at least two unit of an arrester, at least two unit of an arrester is connected in series, the grading ring is located at the upper end of the unit of an arrester on top, the unit of an arrester includes composite sheath and the insulating cylinder in composite sheath, several resistor discs are equipped in the insulating cylinder, the resistor disc is equipped with the conductive rod that longitudal section is inverted T-shaped, the pressing plate connecting with insulating cylinder is set on the conductive rod, the composite sheath both ends are equipped with flange, the resistor disc has convex block, the resistor disc upper surface is equipped with the groove to match with convex block.The antiseismic ability of the arrester is strong, and can reliably guarantee that equipment operates normally in AC Substation.
Description
Technical field
The utility model belongs to arrester technical field, and in particular to a kind of 500kV exchange polymeric housed metal oxide arrester.
Background technique
In 500kV AC transmission system, AC gapless arrester is important protection equipment, is parallel to route
In, for preventing system voltage from damage relevant device because thunder and lightning, operation etc. are excessively high.Currently used for 500kV AC Substation
Middle arrester is usually composed in series using three section porcelain cover members；The major defect of this arrester is that porcelain housing integrally resists
Curved intensity is lower, causes this arrester shock resistance poor, with being not directly applicable 8 degree and the above seismic fortification intensity
Area.
Utility model content
The utility model aims to solve the shortcomings of the prior art, it is strong to provide a kind of antiseismic ability, and energy
The reliable 500kV polymeric housed metal oxide arrester for guaranteeing that equipment operates normally in AC Substation.
A kind of 500kV exchange polymeric housed metal oxide arrester, including grading ring and at least two unit of an arrester, the arrester
Element is connected in series, and the grading ring is located at the upper end of the unit of an arrester on top, and the unit of an arrester includes composite sheath
With the insulating cylinder being located in composite sheath, the insulating cylinder is interior to be equipped with several resistor discs, the arrester of the arrester bottom
Element uses built-in insulation terminal low voltage tapping structure.
Arrester is connected using two section unit of an arrester, and lower end uses built-in insulation terminal low-pressure line-outgoing, and grading ring is located at
At the top of the unit of an arrester on top, the lightning arrester body total height is not more than 6m.
From top to bottom first segment unit of an arrester height is 2.765m, the second section unit of an arrester 4 to the lightning arrester body
Height is 2.81m.
The unit of an arrester includes composite sheath, resistor disc column and low-pressure line-outgoing insulated terminal.
It is connected between the flange and silastic material using high-strength epoxy adhesive mucilage binding.
Several resistor discs are composed in series resistor disc column.
The built-in insulation terminal low voltage tapping structure includes the seal cover board for being mounted on tower bottom element lower end, is arranged close
Outlet low-voltage insulated terminal on sealing plate, the outlet low-voltage insulated terminal are connect by line bank with insulated column, outlet low-voltage
Insulated terminal passes through seal cover board, is tightly connected between outlet low-voltage insulated terminal and seal cover board by seal assembly.Outlet
Low-voltage insulation terminal and low-voltage ground cable connection.
The resistor disc is equipped with the conductive rod that longitudal section is inverted T-shaped, and suit is connect with insulating cylinder on the conductive rod
Pressing plate, the composite sheath both ends are equipped with above-mentioned flange.
The resistor disc has convex block, and the resistor disc upper surface is equipped with the groove to match with convex block.
The cross section of the convex block is triangle or rectangle.
The grading ring is using circle, using aluminum alloy materials, is linked to be an entirety by welding.
The insulating cylinder is formed using high strength glass fiber coiling.
The resistor disc is equipped with through-hole.
Low-pressure line-outgoing insulated terminal uses poured with epoxy resin product.
The inner groovy across through-hole is offered on the resistor disc.
When in use, the lower part of upper resistor disc is equipped with convex block to the device of the utility model, and lower resistor disc is equipped with groove, electricity
It is connected by convex block with matched groove structure between resistance piece, and is compressed resistor disc by the pressing plate at insulating cylinder both ends
So that resistor disc is formed one integral into punching rod structure, enhances the intensity of arrester resistance core, increase integral bending
Greatly, arrester arrester shock resistance is improved.The cross section of the convex block is triangle or rectangle, and two resistor discs are connected to one
Rising can not rotate, and increase the stability of core.Arrester bears the effect of power-frequency voltage for a long time, additionally will be discontinuously
The effect of the transient overvoltages such as Frequency Transient Overvoltage, lightning surge and switching overvoltage is born, the effect of these overvoltage
As a result lead to the raising of Zinc-Oxide Arrester internal resistance piece temperature, if Zinc-Oxide Arrester cannot in time give out heat
It goes, resistor disc temperature will be more than a certain limiting value, cause Zinc-Oxide Arrester heat damage, so that losing keeps arrester ineffective.
The resistor disc is equipped with through-hole, and pressure release cooling channel is formed after the connection of several resistor discs, accelerates arrester in high tender feeling
Heat under condition distributes speed, to improve the ability of arrester reply icing flashover and lightning stroke trip failure, greatly improves
The security reliability of arrester.In addition it no longer needs to install metal fin between resistor disc additional, to reduce the height of arrester
Degree, arrester center of gravity reduce, and arrester center of gravity is low, and intensity is high, and 9 degree for can satisfy that horizontal acceleration is 0.5g are provided fortification against earthquakes strong
Spend regional requirement.
The 500kV polymeric housed metal oxide arrester of the utility model is suitable for 500kV AC transmission system, it has the advantage that:
(1), the unit of an arrester is designed using seat design, designs composite sheath diameter according to force-bearing situation, it is anti-to improve arrester
Tolerance is shaken, by the antiseismic test under the conditions of 0.5g horizontal acceleration, can meet 9 degree of seismic fortification intensity areas makes
With.(2), the grading ring is formed using integral solder, is pressed to arrester pressure.(3), inside the unit of an arrester by
Several resistor discs are composed in series, compact-sized, are manufactured easy for installation.(4), insulating cylinder uses high strength glass fiber material,
It is made up of sandwich wound solidification, both ends high-strength epoxy adhesive mucilage binding flange, flange uses polygonized structure, bonding pad
It is connected using hole, bending resistance breakdown strength reaches 60Mpa or more, and overall performance is excellent.(8), the low-pressure line-outgoing insulated terminal is adopted
With embedding structure, arrester whole height is reduced, arrester anti-seismic performance is effectively improved.Arrester bending resistance shock strength is high, whole
Body is had excellent performance, and has passed through the antiseismic test under the conditions of 0.5g horizontal acceleration, can meet 9 degree of seismic fortification intensity areas
It uses.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the bottom unit of an arrester structural schematic diagram of the utility model；
Fig. 3 is the resistor disc attachment structure schematic diagram of the utility model；
Fig. 4 is the resistor disc overlooking structure diagram of the utility model；
Fig. 5 is built-in insulation terminal low voltage tapping structure schematic diagram of the invention；
Fig. 6 is the schematic diagram of insulated terminal low voltage tapping structure in the prior art.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Embodiment one: as shown in Figs. 1-2, a kind of 500kV exchange polymeric housed metal oxide arrester, including grading ring 1 and at least two
Unit of an arrester 2, at least two unit of an arrester 2 are connected in series, and the grading ring 1 is located at the unit of an arrester on top
Upper end, the unit of an arrester include composite sheath 5 and the insulating cylinder 7 in composite sheath 5, are equipped in the insulating cylinder 7
Several resistor discs 8, the resistor disc 8 are equipped with the conductive rod 3 that longitudal section is inverted T-shaped, suit and insulation on the conductive rod 3
The pressing plate 4 of cylinder connection, 5 both ends of composite sheath are equipped with flange 6.
The grading ring 1 is using circle, using aluminum alloy materials, is linked to be an entirety by welding.
The insulating cylinder 7 is formed using high strength glass fiber coiling.
Arrester is connected using two section unit of an arrester, and lower end uses built-in insulation terminal low-pressure line-outgoing, and grading ring is located at
At the top of the unit of an arrester on top, the lightning arrester body total height is not more than 6m.
From top to bottom first segment unit of an arrester height is 2.765m, the second section unit of an arrester 4 to the lightning arrester body
Height is 2.81m.
The unit of an arrester includes composite sheath, resistor disc column and low-pressure line-outgoing insulated terminal.
It is connected between the flange and silastic material using high-strength epoxy adhesive mucilage binding.
Several resistor discs are composed in series resistor disc column.
The built-in insulation terminal low voltage tapping structure includes the seal cover board 32 for being mounted on tower bottom element lower end, and setting exists
Outlet low-voltage insulated terminal 11 on sealing plate, the outlet low-voltage insulated terminal are connect by line bank 34 with insulated column, out
Line low-voltage insulation terminal passes through seal cover board, is connected between outlet low-voltage insulated terminal and seal cover board by the sealing of seal assembly 33
It connects.Outlet low-voltage insulated terminal is connect with low-voltage ground cable 31.
The resistor disc is equipped with the conductive rod that longitudal section is inverted T-shaped, and suit is connect with insulating cylinder on the conductive rod
Pressing plate, the composite sheath both ends are equipped with flange.
Embodiment two: as shown in figures 1 to 6, a kind of 500kV exchange polymeric housed metal oxide arrester, including grading ring 1 and at least two
Unit of an arrester 2, at least two unit of an arrester 2 are connected in series, and the grading ring 1 is located at the unit of an arrester on top
Upper end, the unit of an arrester include composite sheath 5 and the insulating cylinder 7 in composite sheath 5, are equipped in the insulating cylinder 7
Several resistor discs 8, the resistor disc 8 are equipped with the conductive rod 3 that longitudal section is inverted T-shaped, suit and insulation on the conductive rod 3
The pressing plate 4 of cylinder connection, 5 both ends of composite sheath are equipped with flange 6.
The resistor disc has convex block 10, and the resistor disc upper surface is equipped with the groove 11 to match with convex block.
The cross section of the convex block is triangle or rectangle, and the resistor disc after preventing connection relatively rotates.
The grading ring 1 is using circle, using aluminum alloy materials, is linked to be an entirety by welding.
The insulating cylinder 7 is formed using high strength glass fiber coiling.
The resistor disc 8 is equipped with through-hole 13.
Low-pressure line-outgoing insulated terminal uses poured with epoxy resin product.
The inner groovy 12 across through-hole is offered on the resistor disc, convenient for the heat that generates between resistor disc from inner groovy
Into through-hole and then pressure relieving cooling.
Arrester is connected using two section unit of an arrester, and lower end uses built-in insulation terminal low-pressure line-outgoing, and grading ring is located at
At the top of the unit of an arrester on top, the lightning arrester body total height is not more than 6m.
From top to bottom first segment unit of an arrester height is 2.765m, the second section unit of an arrester 4 to the lightning arrester body
Height is 2.81m.
The unit of an arrester includes composite sheath, resistor disc column and low-pressure line-outgoing insulated terminal.
It is connected between the flange and silastic material using high-strength epoxy adhesive mucilage binding.
Several resistor discs are composed in series resistor disc column.
The built-in insulation terminal low voltage tapping structure includes the seal cover board 32 for being mounted on tower bottom element lower end, and setting exists
Outlet low-voltage insulated terminal 11 on sealing plate, the outlet low-voltage insulated terminal are connect by line bank 34 with insulated column, out
Line low-voltage insulation terminal passes through seal cover board, is connected between outlet low-voltage insulated terminal and seal cover board by the sealing of seal assembly 33
It connects.Outlet low-voltage insulated terminal is connect with low-voltage ground cable 31.
The resistor disc is equipped with the conductive rod that longitudal section is inverted T-shaped, and suit is connect with insulating cylinder on the conductive rod
Pressing plate, the composite sheath both ends are equipped with flange.
When in use, the lower part of upper resistor disc is equipped with convex block to the device of the utility model, and lower resistor disc is equipped with groove, electricity
It is connected by convex block with matched groove structure between resistance piece, and is compressed resistor disc by the pressing plate at insulating cylinder both ends
So that resistor disc is formed one integral into punching rod structure, enhances the intensity of arrester resistance core, increase integral bending
Greatly, arrester arrester shock resistance is improved.The cross section of the convex block is triangle or rectangle, and two resistor discs are connected to one
Rising can not rotate, and increase the stability of core.Arrester bears the effect of power-frequency voltage for a long time, additionally will be discontinuously
The effect of the transient overvoltages such as Frequency Transient Overvoltage, lightning surge and switching overvoltage is born, the effect of these overvoltage
As a result lead to the raising of Zinc-Oxide Arrester internal resistance piece temperature, if Zinc-Oxide Arrester cannot in time give out heat
It goes, resistor disc temperature will be more than a certain limiting value, cause Zinc-Oxide Arrester heat damage, so that losing keeps arrester ineffective.
The resistor disc is equipped with through-hole, and pressure release cooling channel is formed after the connection of several resistor discs, accelerates arrester in high tender feeling
Heat under condition distributes speed, to improve the ability of arrester reply icing flashover and lightning stroke trip failure, greatly improves
The security reliability of arrester.In addition it no longer needs to install metal fin between resistor disc additional, to reduce the height of arrester
Degree, arrester center of gravity reduce, and arrester center of gravity is low, and intensity is high, and 9 degree for can satisfy that horizontal acceleration is 0.5g are provided fortification against earthquakes strong
Spend regional requirement.
Claims (10)
1. a kind of 500kV exchanges polymeric housed metal oxide arrester, it is characterised in that: including grading ring and at least two unit of an arrester, institute
The series connection of at least two unit of an arrester is stated, the grading ring is located at the upper end of the unit of an arrester on top, the arrester member
Part includes composite sheath and the insulating cylinder in composite sheath, several resistor discs are equipped in the insulating cylinder, described lightning-arrest
The unit of an arrester of device bottom uses built-in insulation terminal low voltage tapping structure, the built-in insulation terminal low voltage tapping structure packet
Include the seal cover board for being mounted on tower bottom element lower end and the outlet low-voltage insulated terminal being arranged on sealing plate, the outlet low-voltage
Insulated terminal is connect by line bank with insulated column, and outlet low-voltage insulated terminal passes through seal cover board, outlet low-voltage insulated terminal
It is tightly connected between seal cover board by seal assembly.
2. 500kV as described in claim 1 exchanges polymeric housed metal oxide arrester, it is characterised in that: the resistor disc is equipped with vertical
Section is the conductive rod of inverted T-shaped, and the pressing plate connecting with insulating cylinder is set on the conductive rod, and the composite sheath both ends are equipped with method
It is blue.
3. 500kV as claimed in claim 2 exchanges polymeric housed metal oxide arrester, it is characterised in that: the grading ring uses circle,
And use articles made of aluminium alloy.
4. 500kV as claimed in claim 3 exchanges polymeric housed metal oxide arrester, it is characterised in that: the insulating cylinder is using high-strength
Spend glass fibre coiling molding.
5. 500kV as claimed in claim 4 exchanges polymeric housed metal oxide arrester, it is characterised in that: the resistor disc is equipped with logical
Hole.
6. 500kV as claimed in claim 5 exchanges polymeric housed metal oxide arrester, it is characterised in that: low-pressure line-outgoing insulated terminal is adopted
With poured with epoxy resin product.
7. 500kV as claimed in claim 6 exchanges polymeric housed metal oxide arrester, it is characterised in that: arrester is lightning-arrest using two sections
The series connection of device element, lower end use built-in insulation terminal low-pressure line-outgoing, the superposed unit of an arrester top of grading ring.
8. 500kV as claimed in claim 7 exchanges polymeric housed metal oxide arrester, it is characterised in that: the lightning arrester body is by upper
And lower first segment unit of an arrester height is 2.765m, 4 height of the second section unit of an arrester is 2.81m.
9. 500kV as claimed in claim 8 exchanges polymeric housed metal oxide arrester, it is characterised in that: outside the flange and silicon rubber
It is connected between set using high-strength epoxy adhesive mucilage binding.
10. 500kV as claimed in claim 9 exchanges polymeric housed metal oxide arrester, it is characterised in that: the unit of an arrester includes
Composite sheath, resistor disc column and low-pressure line-outgoing insulated terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822076920.8U CN209625948U (en) | 2018-12-11 | 2018-12-11 | A kind of 500kV exchange polymeric housed metal oxide arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822076920.8U CN209625948U (en) | 2018-12-11 | 2018-12-11 | A kind of 500kV exchange polymeric housed metal oxide arrester |
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| Publication Number | Publication Date |
|---|---|
| CN209625948U true CN209625948U (en) | 2019-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822076920.8U Active CN209625948U (en) | 2018-12-11 | 2018-12-11 | A kind of 500kV exchange polymeric housed metal oxide arrester |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584173A (en) * | 2020-05-26 | 2020-08-25 | 恒大电气有限公司 | Arrester and valve block dry pressing forming device thereof |
| CN113223794A (en) * | 2021-05-07 | 2021-08-06 | 大连法伏安电器有限公司 | Composite casing arrester production equipment integrated device |
-
2018
- 2018-12-11 CN CN201822076920.8U patent/CN209625948U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584173A (en) * | 2020-05-26 | 2020-08-25 | 恒大电气有限公司 | Arrester and valve block dry pressing forming device thereof |
| CN111584173B (en) * | 2020-05-26 | 2021-08-17 | 恒大电气有限公司 | Lightning arrester |
| CN113223794A (en) * | 2021-05-07 | 2021-08-06 | 大连法伏安电器有限公司 | Composite casing arrester production equipment integrated device |
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