CN106655143A - Three-phase combined overvoltage protector - Google Patents
Three-phase combined overvoltage protector Download PDFInfo
- Publication number
- CN106655143A CN106655143A CN201611007831.7A CN201611007831A CN106655143A CN 106655143 A CN106655143 A CN 106655143A CN 201611007831 A CN201611007831 A CN 201611007831A CN 106655143 A CN106655143 A CN 106655143A
- Authority
- CN
- China
- Prior art keywords
- zinc oxide
- disconnector
- discharging gap
- oxide valve
- valve plate
- 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.)
- Pending
Links
- 230000001012 protector Effects 0.000 title claims abstract description 12
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000011787 zinc oxide Substances 0.000 claims abstract description 46
- 230000004224 protection Effects 0.000 claims abstract description 23
- 238000007599 discharging Methods 0.000 claims description 37
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003990 capacitor Substances 0.000 abstract description 5
- 230000001939 inductive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention provides a three-phase combined overvoltage protector, which comprises a first disconnector, a second disconnector and a third disconnector, wherein one end of the first disconnector, one end of the second disconnector and one end of the third disconnector are connected with three-phase ends A, B and C of a protection device respectively, the other ends of the first disconnector, the second disconnector and the third disconnector are connected with a discharge gap assembly through a first zinc oxide varistror, a second zinc oxide varistror and a third zinc oxide varistror respectively, and the other end of the discharge gap assembly is grounded through a fourth zinc oxide varistror; and two ends of each of the first zinc oxide varistror, the second zinc oxide varistror, the third zinc oxide varistror and the fourth zinc oxide varistror are connected with one capacitor in parallel. The three-phase combined overvoltage protector is simple in structure, reasonable in arrangement, good in performance, stable in operation voltage and good in energy-saving effect, and can be automatically connected to a power grid in an autocontrol manner.
Description
Technical field
The present invention relates in power system electrical equipment over-pressure safety device, and in particular to it is a kind of three phase combined excessively electric
Pressure protector.
Background technology
At present, because of various high-voltage electrical equipments, the insulation for such as becoming electrical equipment, switch, motor etc. suffers from certain limit, is
The harm of atmospheric over-voltage and switching overvoltage to these equipment, people is avoided mostly to adopt by discharging gap and zinc oxide valve
It is combined that the arrester that piece is connected in series, such as Authorization Notice No. disclose a kind of three for the Chinese invention patent of CN 2144888Y
Formula overvoltage protection device, using midpoint M is arranged, has discharging gap and zinc oxide valve plate series connection from midpoint M into shape connection four is penetrated
The protection branch road for connecting and composing, another end points of four protection branch roads connect respectively by the A phase lines of protection equipment, B phase lines,
C phase lines and ground wire D.When atmospheric over-voltage or switching overvoltage arrive, three protection branch roads arranged side by side constitute alternate protection,
Complete three protections relatively commonly through a protection branch road again.Though this overvoltage protection device has can make alternate protection
Pressure multiple is equal with per over-pressed multiple relatively, and alternate protection value is down to into the advantage of original 30 ~ 40%；However, but existing
During assembling, because four protection branch roads are connected with each other, if zinc oxide or discharging gap go wrong, cannot rise
To the effect of protection.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of three phase combined over-voltage protector, the overvoltage protector energy
Enough more preferable protection equipment, it is to avoid cause the feelings that cannot play a protective role because zinc oxide or discharging gap go wrong
Condition occurs.
For achieving the above object, present invention employs technical scheme below：Including the first disconnector, the second disconnector and
Three Cut Off's device, one end of first disconnector, the second disconnector and Three Cut Off's device connects respectively A, B, C three-phase of protection equipment
End is connected, the other end difference zinc oxide valve plates of Jing first of the first disconnector, the second disconnector and Three Cut Off's device, the second oxidation
Zinc valve block and the 3rd zinc oxide valve plate are connected with discharging gap component, the zinc oxide valve plates of other end Jing the 4th of discharging gap component
Ground connection, the two ends of first zinc oxide valve plate, the second zinc oxide valve plate and the 3rd zinc oxide valve plate and the 4th zinc oxide valve plate
An electric capacity in parallel.
First disconnector, the second disconnector and Three Cut Off's device are vacuum contactor.
The discharging gap component is by between the first discharging gap, the second discharging gap, the 3rd discharging gap and the 4th electric discharge
Gap is formed in parallel, the first discharging gap, the second discharging gap, the 3rd discharging gap be arranged in the first zinc oxide valve plate,
The underface of zinc oxide valve block and the 3rd zinc oxide valve plate.
Beneficial effects of the present invention：Three phase combined over-voltage protector of the present invention is not only simple in structure, configuration
Rationally, functional, Self-controlled automatically accesses electrical network, and operation voltage is stable, good energy-conserving effect.By disconnector, put
Electric gap and zinc oxide valve plate composition protection branch road, are applicable not only to cut-off the guarantor of the higher-order of oscillation overvoltage that inductive load is produced
Shield, and atmospheric over-voltage and amplitude switching overvoltage can be preferably limited, and have alternate overvoltage and mutually overvoltage concurrently
Defencive function.Be connected in parallel to a capacitor respectively at the two ends of discharging gap, can eliminate in assembling process produce it is miscellaneous over the ground
The negative effect of spurious capacitance, the capacity of capacitor in parallel is set to 20 times of interelectrode capacity amount of discharging gap, can make to put
The Uniform discharge in electric gap, prevents the impact of stray capacitance over the ground.
Description of the drawings
Fig. 1 is the electrical schematic of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described.
As shown in figure 1, including the first disconnector N1, the second disconnector N2 and Three Cut Off's device N3, the first disconnector N1,
One end of two disconnector N2 and Three Cut Off's device N3 connects respectively A, B, C three phase terminals of protection equipment and is connected, the first disconnector N1, the
Other end difference Jing the first zinc oxide valve plate Y1 of two disconnector N2 and Three Cut Off's device N3, the second zinc oxide valve plate Y2 and the 3rd
Zinc oxide valve plate Y3 is connected with discharging gap component, the zinc oxide valve plate Y4 of other end Jing the 4th ground connection of discharging gap component, the
One zinc oxide valve plate Y1, the second zinc oxide valve plate Y2 and the 3rd zinc oxide valve plate Y3 and the 4th zinc oxide valve plate Y4 two ends simultaneously
Join an electric capacity C1.
In the present embodiment, the first disconnector N1, the second disconnector N2 and Three Cut Off's device N3 are vacuum contactor.Electric discharge
Gap component is by the first discharging gap X1, the second discharging gap X2, the 3rd discharging gap X3 and the 4th discharging gap X4 parallel connection
Into, the first discharging gap X1, the second discharging gap X2, the 3rd discharging gap X3 be arranged in the first zinc oxide valve plate Y1,
The underface of zinc oxide valve block Y2 and the 3rd zinc oxide valve plate Y3.
Three phase combined over-voltage protector of the present invention is not only simple in structure, and configuration is reasonable, functional, can be certainly
Control formula automatically accesses electrical network, and operation voltage is stable, good energy-conserving effect.By disconnector, discharging gap and zinc oxide valve plate
Composition protection branch road, is applicable not only to cut-off the protection of the higher-order of oscillation overvoltage that inductive load is produced, and can preferably limit
Atmospheric over-voltage processed and amplitude switching overvoltage, and have alternate overvoltage and mutually over-voltage protection function concurrently.Between electric discharge
The two ends of gap are connected in parallel to respectively a capacitor, can eliminate the negative effect of the stray capacitance over the ground produced in assembling process,
The capacity of capacitor in parallel is set to 20 times of interelectrode capacity amount of discharging gap, the electric discharge of discharging gap can be made uniform
Property, prevent the impact of stray capacitance over the ground.
The above embodiment is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of without departing from design spirit of the present invention, technical side of the those of ordinary skill in the art to the present invention
Various modifications and improvement that case is made, all should fall into the protection domain of claims of the present invention determination.
Claims (3)
1. a kind of three phase combined over-voltage protector, it is characterised in that：Including the first disconnector（N1）, the second disconnector（N2）
With Three Cut Off's device（N3）, first disconnector（N1）, the second disconnector（N2）With Three Cut Off's device（N3）One end difference
A, B, C three phase terminals for connecing protection equipment are connected, the first disconnector（N1）, the second disconnector（N2）With Three Cut Off's device（N3）It is another
Distinguish the zinc oxide valve plates of Jing first in one end（Y1）, the second zinc oxide valve plate（Y2）And the 3rd zinc oxide valve plate（Y3）With discharging gap
Component is connected, the zinc oxide valve plates of other end Jing the 4th of discharging gap component（Y4）Ground connection, first zinc oxide valve plate（Y1）、
Second zinc oxide valve plate（Y2）And the 3rd zinc oxide valve plate（Y3）With the 4th zinc oxide valve plate（Y4）A two ends electric capacity in parallel
（C1）.
2. three phase combined over-voltage protector according to claim 1, it is characterised in that：First disconnector
（N1）, the second disconnector（N2）With Three Cut Off's device（N3）It is vacuum contactor.
3. three phase combined over-voltage protector according to claim 1, it is characterised in that：The discharging gap component by
First discharging gap (X1), the second discharging gap（X2）, the 3rd discharging gap（X3）With the 4th discharging gap（X4 it is) in parallel and
Into the first discharging gap (X1), the second discharging gap（X2）, the 3rd discharging gap（X3）It is arranged in the first zinc oxide valve plate
（Y1）, the second zinc oxide valve plate（Y2）And the 3rd zinc oxide valve plate（Y3）Underface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611007831.7A CN106655143A (en) | 2016-11-16 | 2016-11-16 | Three-phase combined overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611007831.7A CN106655143A (en) | 2016-11-16 | 2016-11-16 | Three-phase combined overvoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106655143A true CN106655143A (en) | 2017-05-10 |
Family
ID=58807074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611007831.7A Pending CN106655143A (en) | 2016-11-16 | 2016-11-16 | Three-phase combined overvoltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106655143A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3832825A4 (en) * | 2018-11-28 | 2021-09-29 | Xiamen Set Electronics Co., Ltd | SURGE PROTECTION DEVICE AND SYSTEM |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2515854Y (en) * | 2001-07-06 | 2002-10-09 | 清华大学 | Overvoltage protector |
| CN2593440Y (en) * | 2003-01-09 | 2003-12-17 | 中冶赛迪工程技术股份有限公司 | Overvoltage protection apparatus |
| CN1832318A (en) * | 2006-03-21 | 2006-09-13 | 四川大学 | Hybrid Converter for HVDC Transmission System |
| CN102510054A (en) * | 2011-11-07 | 2012-06-20 | 河南博特电气有限公司 | Resistance-capacitance absorber and its production method |
| CN204290269U (en) * | 2014-12-25 | 2015-04-22 | 国家电网公司 | A kind of Modular Three-Phase Overvoltage Protector |
-
2016
- 2016-11-16 CN CN201611007831.7A patent/CN106655143A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2515854Y (en) * | 2001-07-06 | 2002-10-09 | 清华大学 | Overvoltage protector |
| CN2593440Y (en) * | 2003-01-09 | 2003-12-17 | 中冶赛迪工程技术股份有限公司 | Overvoltage protection apparatus |
| CN1832318A (en) * | 2006-03-21 | 2006-09-13 | 四川大学 | Hybrid Converter for HVDC Transmission System |
| CN102510054A (en) * | 2011-11-07 | 2012-06-20 | 河南博特电气有限公司 | Resistance-capacitance absorber and its production method |
| CN204290269U (en) * | 2014-12-25 | 2015-04-22 | 国家电网公司 | A kind of Modular Three-Phase Overvoltage Protector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3832825A4 (en) * | 2018-11-28 | 2021-09-29 | Xiamen Set Electronics Co., Ltd | SURGE PROTECTION DEVICE AND SYSTEM |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100483884C (en) | High power motor over-voltage protection device | |
| CN102545196B (en) | Multilayer discharge gap type surge protection device | |
| CN106024497B (en) | Auxiliary circuit for high-short-circuit shut-off DC circuit breaker and control method thereof | |
| CN105119299A (en) | Middle and high voltage power grid distributed series compensation system | |
| CN201663544U (en) | Filtering module with anti-electromagnetic interference and transient suppression functions | |
| CN103066582B (en) | A modular multilevel converter overvoltage protection method and its protection device | |
| CN106655143A (en) | Three-phase combined overvoltage protector | |
| CN201247725Y (en) | 3 to 35kV vacuum switch restrike restrainer | |
| CN2722487Y (en) | Arc and resonance extinction and overvoltage protector | |
| CN207799010U (en) | It is a kind of realize lightning surge and insulate voltage-withstand test simultaneously by design circuit | |
| CN208401544U (en) | A kind of over-voltage protector of energy-absorbing cumulative | |
| CN207200270U (en) | A kind of transformer neutral point DC magnetic biasing earthing or grounding means | |
| CN106129995A (en) | A kind of novel convenient practical arc-extinguishing harmonic-eliminating and overvoltage protection three-in-one unit | |
| CN204290269U (en) | A kind of Modular Three-Phase Overvoltage Protector | |
| CN110112721B (en) | An internal overvoltage protection system and method for a DC distribution network system | |
| CN106129994A (en) | A kind of novel efficient extinguishing arc and overvoltage protection | |
| CN102142680A (en) | Intelligent resistance-capacitance absorption and over-voltage comprehensive protection device | |
| CN202550522U (en) | Single-phase restriking overvoltage lightning arrester protection device of capacitance compensation device | |
| CN202797934U (en) | Improved graphite type lightning arrester | |
| CN201118228Y (en) | Combination type resistance-capacity protector capable of freely switching | |
| CN201388042Y (en) | Central high-voltage switch equal-height cabinet | |
| CN207588430U (en) | A kind of three-phase overvoltage protection of arc extinction cabinet | |
| CN206099322U (en) | Three -phase combined overvoltage protector | |
| CN103618304A (en) | Combined high-power-capacity overvoltage protector | |
| CN206471825U (en) | A kind of novel efficient extinguishing arc and overvoltage protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |