CN200950428Y - Novel frequency division shunting separator - Google Patents
Novel frequency division shunting separator Download PDFInfo
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- CN200950428Y CN200950428Y CN 200620014946 CN200620014946U CN200950428Y CN 200950428 Y CN200950428 Y CN 200950428Y CN 200620014946 CN200620014946 CN 200620014946 CN 200620014946 U CN200620014946 U CN 200620014946U CN 200950428 Y CN200950428 Y CN 200950428Y
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- frequency division
- current
- shunting
- sensing elements
- current sensing
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Abstract
A novel frequency-dividing and current-dividing discoconnector used in high voltage and ultrahigh voltage lightning arresters to make the lightning arresters maintenance-free includes a frequency-dividing element, a current-dividing element, an electrode, a current induction element and a blasting element. The current induction element connects with the current-dividing element. The frequency-dividing and current-dividing discoconnector can not only endure most thunder current and operating overcurrent in the high voltage and ultrahigh voltage power system to avoid misoperation, but also swiftly carry out reliable operation with a little power current. The utility model solves the problem of that the action and the toleration mutually restrict with each other which exists in the traditional domestic and overseas discoconnectors, so that the discoconnector do not work reliably, have bad discharge capacity and are not suitable for ultrahigh voltage system. The application of the utility model can make the high voltage and ultrahigh voltage lightning arresters work stably and maintenance-free.
Description
Technical field
The utility model relates to a kind of disconnector that can be applicable to high pressure and superhigh pressure lightning arrester, especially a kind of comprise frequency division element, vent diverter and electrode can non-maintaining operation function novel frequency division shunting disconnector.
Background technology
The disconnector of present domestic and international conventional lightning arrester, can be divided into two kinds of hot melt, heat explosion types, mainly there is following subject matter in these two kinds of disconnectors: operating current and withstand current act on components identical, causative action performance and resistance characteristics curve have balancing by transposition point, thereby its performance and tolerance performance mutual restriction raising performance will be sacrificed the tolerance performance and be made cost, raising tolerance performance will be sacrificed performance and be made cost, malfunction rate height or action occur and break away from phenomenons such as unreliable.Chinese patent literature disclosed " a kind of novel lightning arrester disconnector " patent No.: ZL 01 2 28711.3 for example, it comprises inductance, fuse, electrode, goes up cap, following cap and core body framework, inductance and two ends after fuse is connected are receiving electrode respectively, last cap, down between cap and the core body framework by being threaded, fuse is contained in down in the interior core body framework inner chamber of cap, inductance is contained in the inner chamber of cap, is fixed between the exposed electrode on the upper and lower shade to constitute the gap.This patent as control element, exists action to break away from problems such as the big 10A of starting current with fuse, can not be applied to require to move the little electric power system of disengaging starting current.And all types of disconnector withstand current performances all can not satisfy the requirements at the higher level of ultrahigh voltage power system.
The utility model content
The technical problem that the utility model solves is to eliminate the shortcoming of domestic and international at present each lightning arrester with disconnector, realize both can having tolerated the operation overcurrent of any lightning current and high pressure and extra high voltage system and not misoperation, again can be under very little power current the novel frequency division shunting disconnector of action message rapidly.
Another purpose of the utility model provides at present domestic and international conventional disconnector action of a kind of solution and tolerance performance mutual restriction and through-current capability is little can not be applied to the superhigh pressure problem, reliably realizes the novel frequency division shunting disconnector of high pressure and the non-maintaining operation of superhigh pressure lightning arrester.
The technical solution of the utility model is: design a kind of novel frequency division shunting disconnector, comprise frequency division element, vent diverter, electrode, current sensing elements and open quick-fried element, described frequency division element, vent diverter, current sensing elements and open quick-fried element connected in series after, join with electrode respectively.
Described vent diverter is that last cap and following cap are formed, and is gapped between the electrode of cap and following cap on being fixed on; Be built-in with the frequency division element at last cap, be built-in with current sensing elements and open quick-fried element at following cap; Current sensing elements is electrically connected with vent diverter.
Described frequency division element is an inductance component.
Described vent diverter is that heat-resistant conductive material is made.
Described current sensing elements is a varistor.
Described varistor can send enabling signal under the predetermined value electric current.
Described predetermined value electric current is more than or equal to 0.1A.
It is described that to open quick-fried element be hermetic explosion device.
Describedly open quick-fried element and can after current sensing elements sends enabling signal, finish rapidly and break away from action.
With the utility model since adopted described frequency division element, vent diverter, current sensing elements and opened quick-fried element connected in series after, the structure of joining with electrode respectively, like this, the utility model is with regard to the operation overcurrent that both can tolerate most lightning currents and high pressure, ultrahigh voltage power system and not misoperation, again can be under very little power current action message rapidly.Solved present domestic and international conventional disconnector action and tolerance performance mutual restriction and caused that the unreliable and through-current capability of disconnector operation is little can not to be applied to problem such as ultrahigh voltage power system, the application of this utility model can make that high pressure and superhigh pressure lightning arrester are reliable realizes non-maintaining operation.
Description of drawings
Fig. 1: the electric principle schematic of equivalence of the present utility model;
Fig. 2: be structural representation of the present utility model.
Embodiment
See also Fig. 1 and Fig. 2, the utility model is a kind of novel frequency division shunting disconnector, comprise frequency division element 1, vent diverter 2 and electrode 5,6, current sensing elements 3 and open quick-fried element 4, described frequency division element 1, vent diverter 2, current sensing elements 3 and open 4 series connection of quick-fried element after, join with electrode 5,6 respectively; Electrode 6 joins with lightning arrester 8.
Described vent diverter 2 is last cap 21 and play cap 22 compositions, on being fixed between the electrode 5,6 of cap 21 and following cap 22 gapped 7; Be built-in with frequency division element 1 at last cap 21, be built-in with current sensing elements 3 and open quick-fried element 4 at following cap 22; Current sensing elements 3 is electrically connected with vent diverter 2.Described frequency division element 1 is an inductance component.Described vent diverter 2 is made for heat-resistant conductive material.Described current sensing elements 3 is a varistor.Described varistor can send enabling signal under the predetermined value electric current.Described predetermined value electric current is 0.1A.The described quick-fried element 4 that opens is hermetic explosion device.Describedly open quick-fried element 4 and can after current sensing elements 3 sends enabling signal, finish rapidly and break away from action.
Operation principle of the present utility model is:
The frequency division shunting principle:
The both end voltage of the frequency division element of being made up of inductance component 1 is directly proportional with the rate of change of electric current, under high-frequency current, frequency division element 1 two ends can produce very high overvoltage, adjust the parameter of frequency division element 1 and vent diverter 2, and the high-frequency current that can conveniently realize being scheduled to is by vent diverter 2; Because the power current frequency of system is low, and frequency division element 1 two ends can not produce high overvoltage, and vent diverter 2 can not move, then power current only flows through by current sensing elements 3 and opens the action disengaging loop that quick-fried element 4 is formed, thereby realizes the frequency division shunting simultaneously.
Utilize the withstand current and the high-frequency of operating current to compare 〉=50 than withstand current equivalent frequency and operating current equivalent frequency, the thunder and lightning and the caused high frequency overcurrent of internal system overvoltage that will need to tolerate by frequency division element 1 only act on 2 fens ebb interval loops of vent diverter, break away from loops and the power frequency operating current that lightning arrester body occurs after damaging only acts on current sensing elements 3 and open quick-fried element 4 actions, thereby realized each Hang Qilu of disconnector operating current and withstand current, disconnector power current performance and high-frequency current tolerance performance do not have the balancing by transposition point, non-interfering target.
Action message principle under the glitch electric current:
The current sensing elements 3 of power current operation by forming of lightning arrester by extraordinary varistor, temperature difference with its generation of variation of flowing through electric current, the adjustment component parameters is set, under the little electric current of predetermined 0.1A, send heat enable signal to opening quick-fried element 4, what inner hermetically sealed explosion device of being filled by an amount of explosive was formed opens quick-fried element 4 under the heat enable signal effect, explosive charge in it and reliably finish rapidly and break away from action.Realized reliably to finish under the little electric current disengaging action purpose action sensitivity and improved 100 times than our company utility model patent " a kind of novel lightning arrester disconnector ".
The reliable down tolerance principle of large impact electric current:
Vent diverter 2 is the annulus of semi-circular section by structure, has great passage section and surface, and is made up of heat-resistant conductive material.Can tolerate the direct lightning strike of 400kA and the rectangular impulse current of 2500A.Realized to tolerate the target of the operation overcurrent of almost any lightning current and high pressure and ultrahigh voltage power system.
Can tolerate the numerical analysis of most lightning currents:
China's standard amplitude of lightning current probability statistical formula:
In the following formula: I-amplitude of lightning current kA; The P-amplitude is greater than the probability of lightning current % of I
P=fI has according to following formula: the probability of lightning current 〉=400kA only has 2/100000ths. eight, and promptly 0.28%%, can tolerate the lightning current of 400kA, can tolerate most lightning currents of about 99.9972% exactly.
Can tolerate the numerical analysis of whole high pressure, ultrahigh voltage power system operation overcurrent:
500kV exchanges the ultrahigh voltage power system and uses the rectangular impulse current national Specification tolerance value of lightning arrester to be 〉=1800A, and it is 2500A that 750kV interchange ultrahigh voltage power system uses maximum tolerance value with the rectangular impulse current of lightning arrester industry.So disconnector can tolerate the rectangular impulse current of 2500A, can tolerate whole operation overcurrent of ultrahigh voltage power system exactly.
Working state analysis under the various ruuning situations:
When lightning arrester normally moves, what flow through disconnector is power frequency 50Hz electric current, frequency division element 1 two ends do not have high pressure, so vent diverter 2 is failure to actuate, electric current is by current sensing elements 3 and open quick-fried element 4, but this electric current only is a microampere order, and current sensing elements 3 can not send enabling signal, open quick-fried element 4 and also just can not move disengaging, disconnector normally moves.
When lightning arrester is struck by lightning or during high frequency overcurrent such as electric power system built-in function, frequency division element 1 two ends produce high pressure and make vent diverter 2 actions, with current sensing elements 3 and open quick-fried element 4 electric short circuits, guarantee that disconnector can misoperation.
When faults such as deterioration, short circuit occurring when lightning arrester, lightning arrester body will be by the power frequency 50Hz afterflow of electric power system, frequency division element 1 two ends do not have high pressure, vent diverter 2 is failure to actuate, electric current is by current sensing elements 3 and open quick-fried element 4, because this power frequency continued flow is enough to make current sensing elements 3 to send enabling signal, makes and open the blast action disengaging rapidly of quick-fried element 4.Realize isolation with system.
Claims (9)
1, a kind of novel frequency division shunting disconnector, comprise frequency division element (1), vent diverter (2) and electrode (5,6), it is characterized in that: also comprise current sensing elements (3) and open quick-fried element (4), described frequency division element (1), vent diverter (2), current sensing elements (3) and open quick-fried element (4) series connection after, join with electrode (5,6) respectively.
2, novel frequency division shunting disconnector according to claim 1, it is characterized in that: described frequency division element (1) is an inductance component.
3, novel frequency division shunting disconnector according to claim 2, it is characterized in that: described vent diverter (2) is made for heat-resistant conductive material.
4, novel frequency division shunting disconnector according to claim 3, it is characterized in that: described current sensing elements (3) is a varistor.
5, novel frequency division shunting disconnector according to claim 4, it is characterized in that: described varistor can send enabling signal under the predetermined value electric current.
6, novel frequency division shunting disconnector according to claim 5 is characterized in that: described predetermined value electric current is more than or equal to 0.1A.
7, novel frequency division shunting disconnector according to claim 6 is characterized in that: the described quick-fried element (4) that opens is hermetic explosion device.
8, according to claim 1 or 7 described novel frequency division shunting disconnectors, it is characterized in that: described opening finished the disengaging action rapidly after quick-fried element (4) can send enabling signal in current sensing elements (3).
9, novel frequency division shunting disconnector according to claim 1 is characterized in that: described vent diverter (2) is last cap (21) and following cap (22) composition, between the electrode (5,6) of cap on being fixed on (21) and following cap (22) gapped (7); Be built-in with frequency division element (1) at last cap (21), be built-in with current sensing elements (3) and open quick-fried element (4) at following cap (22); Current sensing elements (3) is electrically connected with vent diverter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620014946 CN200950428Y (en) | 2006-09-25 | 2006-09-25 | Novel frequency division shunting separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620014946 CN200950428Y (en) | 2006-09-25 | 2006-09-25 | Novel frequency division shunting separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200950428Y true CN200950428Y (en) | 2007-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620014946 Expired - Lifetime CN200950428Y (en) | 2006-09-25 | 2006-09-25 | Novel frequency division shunting separator |
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| CN (1) | CN200950428Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236057A (en) * | 2011-01-14 | 2011-11-09 | 广东电网公司电力科学研究院 | Method for testing release device supporting lightning arrester |
| CN103151126A (en) * | 2013-03-12 | 2013-06-12 | 郑越 | Over-voltage protector used for 220V or 380V alternating-current power system |
| CN106597040A (en) * | 2016-12-22 | 2017-04-26 | 中国西电电气股份有限公司 | Wave modulation device and test circuit for square-wave impulse current test |
-
2006
- 2006-09-25 CN CN 200620014946 patent/CN200950428Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236057A (en) * | 2011-01-14 | 2011-11-09 | 广东电网公司电力科学研究院 | Method for testing release device supporting lightning arrester |
| CN102236057B (en) * | 2011-01-14 | 2013-04-03 | 广东电网公司电力科学研究院 | Method for testing release device supporting lightning arrester |
| CN103151126A (en) * | 2013-03-12 | 2013-06-12 | 郑越 | Over-voltage protector used for 220V or 380V alternating-current power system |
| CN103151126B (en) * | 2013-03-12 | 2015-09-30 | 郑越 | For the overvoltage protector of 220V or 380V AC electric power systems |
| CN106597040A (en) * | 2016-12-22 | 2017-04-26 | 中国西电电气股份有限公司 | Wave modulation device and test circuit for square-wave impulse current test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN ABB SILVER STAR SURGE ARRESTER CO., LTD. Free format text: FORMER OWNER: SHENZHEN SILVER STAR POWER ELECTRONIC CO., LTD. Effective date: 20120604 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518110 SHENZHEN, GUANGDONG PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120604 Address after: 518000 Guangdong city of Shenzhen province Baoan District Guanlan Street Community Tourism Da BU Xiang Road Building 1301-101301-121301-141301-16A Patentee after: SHENZHEN ABB SILVER STAR ARRESTER Co.,Ltd. Address before: Baoan District Guanlan street Shenzhen Guangdong province 518000 city sightseeing road star high tech Industrial Park building A building, B building Patentee before: SHENZHEN SILVER STAR ELECTRIC Co.,Ltd. Effective date of registration: 20120604 Address after: Baoan District Guanlan street Shenzhen Guangdong province 518000 city sightseeing road star high tech Industrial Park building A building, B building Patentee after: SHENZHEN SILVER STAR ELECTRIC Co.,Ltd. Address before: 518110, Shenzhen, Guangdong province high speed Mission Hill exit Patentee before: SHENZHEN SILVER STAR POWER ELECTRONIC Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070919 |
|
| EXPY | Termination of patent right or utility model |