CN2667624Y - Three-phase comprehensive protection zinc oxide lightning arrester - Google Patents
Three-phase comprehensive protection zinc oxide lightning arrester Download PDFInfo
- Publication number
- CN2667624Y CN2667624Y CN 200320120214 CN200320120214U CN2667624Y CN 2667624 Y CN2667624 Y CN 2667624Y CN 200320120214 CN200320120214 CN 200320120214 CN 200320120214 U CN200320120214 U CN 200320120214U CN 2667624 Y CN2667624 Y CN 2667624Y
- Authority
- CN
- China
- Prior art keywords
- phase
- discharge
- ball
- gap
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a three-phase integration protection zinc oxide arrester, which is characterized in that the product comprises four metal oxide non-linear resistances 1 realizing a gap connection with an insulation connection body 6. The utility model has a steady discharging and arc extinguishing, promising a perfect consistency with each other. When a phase-to-phase over-voltage happens, the phase-to-phase gap discharge balances the three-phase voltage at once, limiting the generation of the phase-to-phase over-voltage; when an atmospheric over-voltage happens, the discharge pressure restrict phase to ground is adopted. In normal circumstances, the non-linear resistance does not bear the power frequency voltage non-charge rate, prolonging the service life of the product; as the phase to phase insulation distance is increased due to an E phase connected at the bottom through a gap, the utility model has a perfect symmetry, can discharge current to the gap and promising no interference to the arc distinguishing, thereby being applicable to various occasions both indoor and outdoor.
Description
Technical field
The utility model relates to a kind of three-phase voltage limiter, specifically the integrated protection lightning arrester that is combined into of metal oxide nonlinear resistance series gap.
Background technology
The three-phase voltage limiter is widely used in power industry, and it has played good protection to atmospheric over-voltage, switching overvoltage and alternate superpotential restriction that power equipments such as electric power vacuum switch, motor, electric capacity, transformer occur.But also there are some defectives in known three-phase voltage limiter, and row make the extinguishing voltage instability to cause the blast of three-phase voltage limiter as the power-frequency discharge instability.What its reason was that this product adopts is many gaps series system, and be a kind of compact, the compound mode that in-line arranges, phase spacing is with distance is very little mutually, asymmetricly make that alternate Potential distribution is different, especially C and ground connection E mutually, mutual stray capacitance influences maximum, the instability that has caused discharge and extinguishing voltage makes nonlinear resistive element exceed the scope of the energy that bears and collapses.The product of described connected mode in one line in the assembly and adjustment process alternate with mutually between power-frequency sparkover voltage to be adjusted to consistency be difficulty very.
Another kind of single gap product, A, B, C be alternate to be no gap, alternate single the series gap of phase and ground.Threephase load balance under normal circumstances, A, B, C central point no current, as under three unbalanced situations of phase load, central point just has electric current and produces, nonlinear resistance will autobalance voltage, relative like this raising the chargeability of nonlinear resistive element, resistive element will accelerated ageing, especially it is aging faster to meet near the C of ground connection E phase, since higher near making the chargeability of C phase meet in stray capacitance coupling influence between the C phase of E phase than A, B, if this moment occurs the damage that overvoltage will cause product.
Summary of the invention
The utility model purpose provides a kind of three-phase integrated protection zinc oxide arrester that is combined into a gap.
Realize that above-mentioned technical solution is such:
1, three-phase integrated protection zinc oxide arrester comprises four metal oxide nonlinear resistances, it is characterized in that: be combined into the gap by an insulation connector and connect; Insulation connector middle part is provided with an indent discharge cavities, three metal oxide nonlinear resistances are located on the insulation connector in the indent discharge cavities outside, uniform three ball discharges in the same plane in the indent discharge cavities, the connecting rod at ball discharge rear portion is connected with three metal oxide nonlinear resistances by the conductor brace, the insulation connector bottom corresponding with the indent discharge cavities connecting a metal oxide nonlinear resistance by ball screw, the bulb of ball screw is positioned at three ball discharge bottoms, and and three ball discharges between equidistant.
2, according to 1 described three-phase integrated protection zinc oxide arrester, it is characterized in that: described ball discharge is anterior to be spheroid, and the rear portion is the column connecting rod.
3, according to 1 described three-phase integrated protection zinc oxide arrester, it is characterized in that: described brace one end is connecting ball discharge column connecting rod, and the other end is by being bolted to the cock of metal oxide nonlinear resistance bottom.
The utility model is combined into a discharging gap by four ball discharges; wherein three ball discharges are distributed in the same plane; the vertical central point with three balls of E phase ball forms an equilateral 3-D triangle pattern, also can adjust E phase ball apart from the 3-D triangle that forms an isosceles shape according to the requirement of protected equipment.
The utility model discharge, arc extinguishing are stablized, high conformity discharges mutually, because four ball discharges concentrate in together and form a single gap, when alternate when overvoltage occurring, when between a pair of ball, discharging, under the influence that electron ion is dissociated, will cause another ball-gap discharge immediately, make three-phase voltage balance immediately, limit alternate superpotential generation.Nonlinear resistance does not bear power-frequency voltage under the normal condition under the isolation in ball crack, has improved the useful life of product like this.
So because E is connected on the below phase insulation apart from increase by the ball crack, symmetry is good, to ball-gap discharge, arc extinguishing is noiseless to be applicable to indoor outer various occasions uses.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Three-phase integrated protection zinc oxide arrester comprises four metal oxide nonlinear resistances 1, is combined into the gap by an insulation connector 6 and connects.There is an indent discharge cavities 9 at insulation connector 6 middle parts, three metal oxide nonlinear resistances 1 are fixedly installed on the insulation connector 6 in indent discharge cavities 9 outsides by bolt 3, uniform three ball discharges 5 in the same plane in the indent discharge cavities 9, ball discharge 5 front portions are spheroid, and the rear portion is the column connecting rod.The connecting rod at ball discharge 5 rear portions is connected with three metal oxide nonlinear resistances 1 by conductor brace 4, insulation connector 6 bottoms corresponding with indent discharge cavities 9 are connecting the E cock 2 of metal oxide nonlinear resistance 1 bottom mutually by ball screw 7, the bulb of ball screw 7 is positioned at three ball discharge 5 bottoms, and and equidistant between three ball discharges 5, see Fig. 1, Fig. 2.
Nonlinear resistance does not bear power-frequency voltage under the normal condition under the isolation in ball crack.When the alternate overvoltage that occurs, when between a pair of ball, discharging, under the influence that electron ion is dissociated, will cause another ball-gap discharge immediately, make three-phase voltage balance immediately, limited alternate superpotential generation.
Claims (3)
1, three-phase integrated protection zinc oxide arrester comprises four metal oxide nonlinear resistances, it is characterized in that: be combined into the gap by an insulation connector and connect; Insulation connector middle part is provided with an indent discharge cavities, three metal oxide nonlinear resistances are located on the insulation connector in the indent discharge cavities outside, uniform three ball discharges in the same plane in the indent discharge cavities, the connecting rod at ball discharge rear portion is connected with three metal oxide nonlinear resistances by the conductor brace, the insulation connector bottom corresponding with the indent discharge cavities connecting a metal oxide nonlinear resistance by ball screw, the bulb of ball screw is positioned at three ball discharge bottoms, and and three ball discharges between equidistant.
2, three-phase integrated protection zinc oxide arrester according to claim 1 is characterized in that: described ball discharge is anterior to be spheroid, and the rear portion is the column connecting rod.
3, three-phase integrated protection zinc oxide arrester according to claim 1 is characterized in that: described brace one end is connecting ball discharge column connecting rod, and the other end is by being bolted to the cock of metal oxide nonlinear resistance bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320120214 CN2667624Y (en) | 2003-12-02 | 2003-12-02 | Three-phase comprehensive protection zinc oxide lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320120214 CN2667624Y (en) | 2003-12-02 | 2003-12-02 | Three-phase comprehensive protection zinc oxide lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2667624Y true CN2667624Y (en) | 2004-12-29 |
Family
ID=34347931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320120214 Expired - Fee Related CN2667624Y (en) | 2003-12-02 | 2003-12-02 | Three-phase comprehensive protection zinc oxide lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2667624Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243738A (en) * | 2018-08-24 | 2019-01-18 | 国网山东省电力公司青州市供电公司 | A kind of Zinc-Oxide Arrester installation pedestal |
| CN112928724A (en) * | 2021-01-26 | 2021-06-08 | 芜湖市凯鑫避雷器有限责任公司 | High-safety combined lightning arrester |
-
2003
- 2003-12-02 CN CN 200320120214 patent/CN2667624Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243738A (en) * | 2018-08-24 | 2019-01-18 | 国网山东省电力公司青州市供电公司 | A kind of Zinc-Oxide Arrester installation pedestal |
| CN112928724A (en) * | 2021-01-26 | 2021-06-08 | 芜湖市凯鑫避雷器有限责任公司 | High-safety combined lightning arrester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101896981B (en) | High voltage surge arrester and method of operating the same | |
| CN201417654Y (en) | Strong thunder load arrester for overhead transmission line | |
| CN2667624Y (en) | Three-phase comprehensive protection zinc oxide lightning arrester | |
| CN106448960A (en) | 35KV multi-gap anti-thunder insulator | |
| CN1305097A (en) | In-line detection method for vacuum level of discharge-type vacuum arc-quenching chamber | |
| CN111431034A (en) | Multi-chamber vacuum arrester with series resistor discs | |
| CN208834829U (en) | A kind of porcelain pole arm type arrester with series gaps | |
| CN207265416U (en) | A kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device | |
| CN205911090U (en) | 35kV takes many clearances lightning -proof insulator | |
| JP2002093256A (en) | Lightning protection insulator set | |
| CN211700926U (en) | Multi-chamber vacuum arrester with series resistor discs | |
| CN201113419Y (en) | Ultra-high voltage porcelain bushing type lightning arrestor | |
| CA1289615C (en) | Power spark gap assembly for high current conduction with improved sparkover level control | |
| CN203205290U (en) | Air switch contact mechanism provided with grounding contacts | |
| JP2886779B2 (en) | Ground rod for surge arrester | |
| CN212062042U (en) | Insulator structure with comprehensive protection function | |
| CN206225098U (en) | A kind of series gap metal oxide arrester | |
| CN110867728A (en) | Surge absorber | |
| CN209881406U (en) | Improved transformer neutral point complete device | |
| CN204290269U (en) | A kind of Modular Three-Phase Overvoltage Protector | |
| CN205429713U (en) | Over -voltage protector | |
| JP3283104B2 (en) | Tank type surge arrester | |
| CN201113225Y (en) | Coaxial lightning arrester | |
| CN2629311Y (en) | Tri-phase combined overvoltage protector | |
| CN203339501U (en) | Wiring system used for 220kV transformer substation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |