CN110660546A - Metallic oxide tank type lightning arrester with fracture for GIS combined electrical apparatus - Google Patents
Metallic oxide tank type lightning arrester with fracture for GIS combined electrical apparatus Download PDFInfo
- Publication number
- CN110660546A CN110660546A CN201910931849.3A CN201910931849A CN110660546A CN 110660546 A CN110660546 A CN 110660546A CN 201910931849 A CN201910931849 A CN 201910931849A CN 110660546 A CN110660546 A CN 110660546A
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- China
- Prior art keywords
- arrester
- fracture
- shell
- combined electrical
- electrical apparatus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/01—Mounting; Supporting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Gas-Insulated Switchgears (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention discloses a metallic oxide tank type lightning arrester with a fracture for a GIS combined electrical appliance, which comprises a bottom plate, a shell, a supporting insulator, a base, resistance sheets, a junction box, binding posts, a low-voltage conductor and sealing rings, wherein the shell is installed on the upper side of the bottom plate, the supporting insulator is arranged at the center of the bottom end inside the shell, the base is installed on the upper side of the supporting insulator, a plurality of groups of resistance sheets are installed on the upper side of the base, the junction box is installed on the side surface of the shell, the binding posts are arranged at the contact parts of the inside of the junction box and the shell, the low-voltage conductor is installed at the center of the binding posts, and a plurality of groups of sealing rings are installed at the contact parts of the low-voltage conductor and the binding posts Material, time, etc.
Description
Technical Field
The invention relates to the technical field of lightning arresters, in particular to a metal oxide tank type lightning arrester with a fracture, which is used for GIS combined electrical appliances.
Background
The lightning arrester is an electrical apparatus for protecting electrical equipment from being damaged by high transient overvoltage and limiting follow current time and normally limiting follow current amplitude, after the zinc oxide lightning arrester in the prior art is butted with a GIS combined electrical apparatus, when a GIS carries out on-site handover withstand voltage test, the voltage cannot rise to a required value due to the limitation of rated operating voltage of the lightning arrester, if the voltage resistance test of the GIS equipment needs to be carried out, the original lightning arrester needs to be removed and replaced by other tools, and after the test is finished, the lightning arrester is installed back. Or the upper end of the lightning arrester is additionally provided with an isolating switch to realize the isolation of the GIS main body equipment and the lightning arrester.
Disclosure of Invention
The invention aims to provide a metal oxide can-type arrester with a fracture for GIS combined electrical appliances, wherein the rated operating voltage of an arrester body is lower in a system, the arrester cannot be used for carrying out integral voltage resistance on the system, the arrester needs to be isolated in the test process or is not installed for carrying out the test, the arrester can be partially isolated from the system, the tail end of the arrester is not grounded and does not form a loop with the system, so that a resistor disc of the arrester is protected from being influenced by heavy current, the high-voltage side bearing capacity of the arrester is the same as the bearing capacity of the system, therefore, the whole equipment can be pressurized for testing only under the condition that a valve plate of the arrester is protected from being damaged, when the GIS is subjected to voltage resistance test, the isolated fracture is only needed to be opened, the loop of the arrester is disconnected, the internal insulation of the GIS can be pressurized for checking, and the trouble of repeated disassembly and assembly of a zinc oxide arrester is avoided, the cost of labor, materials, time and the like can be saved, and the problems in the prior art can be solved.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a take metallic oxide pot-type arrester of fracture that GIS combined electrical apparatus used, includes bottom plate, casing, support insulator, base, resistance card, terminal box, terminal, low voltage conductor and sealing washer, the side-mounting casing of bottom plate, the inside bottom center department of casing is equipped with support insulator, support insulator's side-mounting base, a plurality of groups of resistance cards of side-mounting of base, the side-mounting terminal box of casing, the inside of terminal box is equipped with the terminal with the contact site of casing, the center department of terminal installs the low voltage conductor, a plurality of groups of sealing washers are installed with the contact site of terminal to the low voltage conductor.
Preferably, the resistance card is made of a zinc oxide material.
Preferably, the resistance card is fixedly installed through a bolt group in a counter bore on the base.
Preferably, the two ends of the bottom plate are respectively provided with a fixed bolt group.
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to a metallic oxide can-type arrester with a fracture used for a GIS combined electrical apparatus, the rated operating voltage of an arrester body is lower in a system, the arrester cannot be used for carrying out integral voltage resistance on the system, the arrester needs to be isolated in the test process or is not installed for testing, the arrester can be partially isolated from the system, the tail end of the arrester is ungrounded, a loop is not formed with the system, the arrester resistor disc is protected from being influenced by heavy current, the bearing capacity of the high-voltage side of the arrester is the same as that of the system, therefore, the whole equipment can be tested by pressurizing only under the condition of protecting the arrester valve disc from being damaged, when the GIS is tested for voltage resistance, the isolation fracture is opened only to disconnect the arrester loop, and the internal insulation of the GIS can be tested by pressurizing, the invention has complete and reasonable structure, avoids the trouble of repeated assembly and disassembly of a zinc oxide arrester, meanwhile, the cost of labor, materials, time and the like can be saved.
Drawings
FIG. 1 is a schematic cross-sectional view of a low voltage conductor of the present invention with the low voltage conductor broken away;
fig. 2 is a schematic cross-sectional view of the low-voltage conductor of the present invention.
In the figure: 1. a base plate; 2. a housing; 3. a support insulator; 4. a base; 5. resistance cards; 6. a junction box; 7. a binding post; 8. a low voltage conductor; 9. and (5) sealing rings.
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. 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.
Referring to fig. 1-2, a metallic oxide tank arrester with a fracture for a GIS combined electrical apparatus includes a bottom plate 1, a housing 2, a supporting insulator 3, a base 4, a resistor disc 5, a junction box 6, a binding post 7, a low voltage conductor 8 and a sealing ring 9, the housing 2 is installed on the upper side of the bottom plate 1, fixed bolt sets are respectively installed on two ends of the bottom plate 1, the supporting insulator 3 is arranged at the center of the inner bottom end of the housing 2, the base 4 is installed on the upper side of the supporting insulator 3, a plurality of groups of resistor discs 5 are installed on the upper side of the base 4, the resistor discs 5 are made of zinc oxide material, the resistor discs 5 are fixedly installed through the bolt sets in counter bores on the base 4, the junction box 6 is installed on the side surface of the housing 2, the binding post 7 is arranged at the contact position between the inside of the junction box 6 and the housing 2, the low voltage conductor 8 is installed at, the bearing capacity of the high-voltage side of the lightning arrester is the same as that of a system, so that the whole equipment can be pressurized for testing only under the condition that the valve plate of the lightning arrester is protected from being damaged.
The difference between the invention and the prior art is as follows: after the zinc oxide arrester and the GIS combined electrical apparatus are butted in the prior art, when the GIS carries out on-site handover withstand voltage test, the voltage is limited by the rated operating voltage of the arrester, the voltage can not rise to the required value, if the GIS equipment needs to be subjected to withstand voltage check, the original arrester needs to be removed and replaced by other tools, after the test is finished, the arrester is installed back, or an isolating switch is added at the upper end of the arrester to realize the isolation of the GIS main body equipment and the arrester, the rated operating voltage of the arrester body used by the GIS combined electrical apparatus of the invention is lower in the system, the arrester body can not carry out integral withstand voltage on the system, the arrester needs to be isolated in the test process, or the arrester is not installed for test, the arrester can be isolated from part of the system, the tail end of the arrester is not grounded, a loop is not formed with the system, and the arrester resistance chip 5 is protected from large current, the bearing capacity of the high-voltage side of the lightning arrester is the same as that of a system, so that the whole equipment can be pressurized to test only under the condition that the valve plate of the lightning arrester is protected from being damaged, when the voltage resistance test is carried out on the GIS, only the isolation fracture needs to be opened, the lightning arrester loop is disconnected, the inner insulation of the GIS can be pressurized and checked, the trouble of repeated disassembly and assembly of the zinc oxide lightning arrester is avoided, and the cost of labor, materials, time and the like can be saved.
In summary, the following steps: the invention relates to a metallic oxide pot-type arrester with a fracture used for a GIS combined electrical apparatus, the rated operating voltage of the arrester body is lower in a system, the arrester cannot be used for carrying out integral voltage resistance on the system, the arrester needs to be isolated in the test process or is not installed for carrying out the test, the arrester can be partially isolated from the system, the tail end of the arrester is ungrounded, a loop is not formed with the system, the arrester resistor disc 5 is protected from being influenced by heavy current, the bearing capacity of the high-voltage side of the arrester is the same as that of the system, therefore, the whole equipment can be tested by pressurizing only under the condition that the arrester valve disc is protected from being damaged, when the GIS is tested for voltage resistance, the isolation fracture is only needed to be opened, the arrester loop is disconnected, and the inner insulation of the GIS can be pressurized and checked, the invention has complete and reasonable structure, avoids the trouble of repeated disassembly and assembly of a zinc oxide arrester, meanwhile, the cost of labor, materials, time and the like can be saved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a take metallic oxide pot-type arrester of fracture that GIS combined electrical apparatus used, includes bottom plate (1), casing (2), supporting insulator (3), base (4), resistance card (5), terminal box (6), terminal (7), low voltage conductor (8) and sealing washer (9), its characterized in that: the side-mounting type low-voltage electric connector is characterized in that a shell (2) is mounted on the upper side of a bottom plate (1), a supporting insulator (3) is arranged at the center of the bottom end of the shell (2), a base (4) is mounted on the upper side of the supporting insulator (3), a plurality of groups of resistance discs (5) are mounted on the upper side of the base (4), a junction box (6) is mounted on the side of the shell (2), a binding post (7) is arranged on the contact position of the inside of the junction box (6) and the shell (2), a low-voltage conductor (8) is mounted at the center of the binding post (7), and a plurality of groups of sealing rings (9) are mounted on the contact.
2. The can-type arrester of metal oxide with fracture used for GIS combined electrical apparatus of claim 1, characterized in that: the resistance card (5) is made of zinc oxide.
3. The can-type arrester of metal oxide with fracture used for GIS combined electrical apparatus of claim 1, characterized in that: the resistance card (5) is fixedly installed through a bolt group in a counter bore on the base (4).
4. The can-type arrester of metal oxide with fracture used for GIS combined electrical apparatus of claim 1, characterized in that: and fixed bolt groups are respectively arranged at two ends of the bottom plate (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910931849.3A CN110660546A (en) | 2019-09-29 | 2019-09-29 | Metallic oxide tank type lightning arrester with fracture for GIS combined electrical apparatus |
| CN202010195625.3A CN111383807B (en) | 2019-09-29 | 2020-03-19 | Tank-type lightning arrester with isolated fracture at low-voltage end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910931849.3A CN110660546A (en) | 2019-09-29 | 2019-09-29 | Metallic oxide tank type lightning arrester with fracture for GIS combined electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110660546A true CN110660546A (en) | 2020-01-07 |
Family
ID=69039790
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910931849.3A Withdrawn CN110660546A (en) | 2019-09-29 | 2019-09-29 | Metallic oxide tank type lightning arrester with fracture for GIS combined electrical apparatus |
| CN202010195625.3A Active CN111383807B (en) | 2019-09-29 | 2020-03-19 | Tank-type lightning arrester with isolated fracture at low-voltage end |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010195625.3A Active CN111383807B (en) | 2019-09-29 | 2020-03-19 | Tank-type lightning arrester with isolated fracture at low-voltage end |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110660546A (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4930039A (en) * | 1989-04-18 | 1990-05-29 | Cooper Industries, Inc. | Fail-safe surge arrester |
| CN201820554U (en) * | 2010-09-21 | 2011-05-04 | 中国西电电气股份有限公司 | Three-phase tank-type lightning arrester |
| CN202084365U (en) * | 2011-05-05 | 2011-12-21 | 中国西电电气股份有限公司 | Tank-type arrester disconnecting device for GIS |
| CN108389668A (en) * | 2018-05-10 | 2018-08-10 | 南阳金冠电气有限公司 | A kind of single-phase tank-type lightning arresters of band fracture GIS |
-
2019
- 2019-09-29 CN CN201910931849.3A patent/CN110660546A/en not_active Withdrawn
-
2020
- 2020-03-19 CN CN202010195625.3A patent/CN111383807B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111383807B (en) | 2022-03-18 |
| CN111383807A (en) | 2020-07-07 |
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Application publication date: 20200107 |