CN101916994A - Large through-flow frequency division and current-distribution type separator - Google Patents
Large through-flow frequency division and current-distribution type separator Download PDFInfo
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- CN101916994A CN101916994A CN 201010247989 CN201010247989A CN101916994A CN 101916994 A CN101916994 A CN 101916994A CN 201010247989 CN201010247989 CN 201010247989 CN 201010247989 A CN201010247989 A CN 201010247989A CN 101916994 A CN101916994 A CN 101916994A
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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
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Abstract
A large through-flow frequency division and current-distribution type separator comprises a separator body and a current-distribution device arranged outside the separator body and connected in parallel with the separator body, wherein the separator body comprises an upper wiring terminal (8A), a low wiring terminal (8B), a frequency division element (1), a disjunction skeleton (2), a current sensing element (3), an opening-explosion element (4); the current-distribution device comprises an upper run-off plate (5A), a low run-off plate (5B), an upper connecting guide plunger (6A), a low connecting guide plunger (6B), an upper current-distribution ball (7A) and a low current-distribution ball (7B); and the discharging surfaces of the upper current-distribution ball (7A) and the low current-distribution ball (7B) are in a hemispheroid structure and are relatively separated to form a discharging space. The large through-flow frequency division and current-distribution type separator can satisfy the application of a super-high voltage system, reliably bear the operation overcurrent of a super-high voltage system without electrode wear, damage or mistaken deionization, quickly and reliably act in a small power current, and realize the reliable operation without maintenance for a super-high voltage lightning arrester.
Description
[technical field]
The present invention relates to the metal oxide arrester release unit.Especially refer to a kind of large through-flow frequency division and current-distribution type separator.
[background technology]
All there are the little problem of through-flow tolerance in domestic and international conventional hot melt, heat explosion type disconnector at present, generally only can tolerate≤switching impulse current of 35kV system, seldom can realize tolerance 110-220kV system operation impulse current, and malfunction rate height very easily occur or move breaking away from phenomenons such as unreliable.Chinese patent " novel frequency division shunting disconnector " (patent No.: ZL 2,006 2 0014946.4), comprise frequency division element, vent diverter, upper and lower 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 upper and lower electrode respectively, realized≤through-flow problems such as 220kV system operation impulse current tolerance; And can realize the basic demand of extra high voltage systems such as 500kV operation by 20 big through-flow rectangular impulse current tolerances of 2000A; But after 20 big through-flow rectangular impulse current tests of 2000A, obvious ablation phenomen can appear in sparking electrode, and reliability is under suspicion, and is difficult to realize non-maintaining operation.
[summary of the invention]
The object of the present invention is to provide the operation overcurrent that can reliably tolerate extra high voltage system that a kind of superhigh pressure lightning arrester uses and can occur electrode erosion hardly, disconnector is damaged or mistake breaks away from, again can be under very little power current the large through-flow frequency division and current-distribution type separator of action message rapidly.Realize the reliable non-maintaining operation of superhigh pressure lightning arrester.
The technical solution adopted for the present invention to solve the technical problems is: a kind of large through-flow frequency division and current-distribution type separator is provided, a detachment device noumenon is arranged, comprise upper connecting terminal, lower connecting terminal, frequency division element, disjunction skeleton, current sensing elements and open quick-fried element, the frequency division element is loaded on disjunction skeleton top; Current sensing elements with open quick-fried element from top to bottom successively order be assemblied in disjunction skeleton bottom after stacking, on the disjunction skeleton, the bottom is connected with lower connecting terminal with upper connecting terminal respectively, it is characterized in that: comprise that also one is set in the outer part flow arrangement in parallel with detachment device noumenon of detachment device noumenon, described part flow arrangement comprises end tab, following end tab, last connection guide gip, the lower link guide gip, last shunting ball and following shunting ball, last shunting ball is a hemisphere shape structure with shunting the ball front end down, on, under shunt the ball face and relatively isolate and form discharging gap, last shunting ball is connected with an end of last connection guide gip, the other end of last connection guide gip is connected with last end tab, and last end tab is connected with upper connecting terminal; Shunt ball down and be connected with an end of lower link guide gip, the lower link guide gip other end is connected with following end tab, and following end tab is connected with lower connecting terminal.
Upper and lower connection guide gip can be to be connected with upper and lower shunting ball with upper and lower end tab by screw thread.The upper and lower shunting ball of shunting core parts front end is the hemisphere shape, and the field intensity uniformity that it is good makes the discharge of disconnector under the extra high voltage system switching overvoltage be distributed in large-area ball electrode outer surface (face discharge) more uniformly; Overcome belt electrode because field intensity is inhomogeneous, the shortcoming that discharge is carried out at the protrusion surface of electrode that goes in ring (line discharge or some discharge).
Described upper and lower shunting ball can use the metal graphite composite material manufacturing.Because of the temperature of electrical discharge arc usually greater than 2000 ℃, the fusing point of common metal material (as copper, steel etc.) only is 1000～1600 ℃, and the fusing point of graphite material can reach 3500 ℃, so graphite electrode is compared conventional copper, steel electrode disconnector, the performance of the high temperature resistant arc erosion of electrode in the time of can significantly improving discharge.Upper and lower shunting ball electrode rear portion can be the metal Materials with High Strength, graphic discharge sphere and discharging current is introduced connected reliably firmly.
The invention has the beneficial effects as follows: can satisfy extra high voltage system and use, can reliably tolerate the operation overcurrent of extra high voltage system and do not damage or mistake breaks away from, electrode erosion can not occur, disconnector is damaged; Again can under the very little power current when afterflow appears in lightning arrester body generation deterioration or faults such as flashover, short circuit automatically, action message, realize the reliable non-maintaining operation of superhigh pressure lightning arrester.
[description of drawings]
The invention will be further described below in conjunction with accompanying drawing.
Accompanying drawing is a structural representation of the present invention.
Among the figure: 1 for the frequency division element, 2 for the disjunction skeleton, 3 for current sensing elements, 4 for to open quick-fried element, 5A be last end tab, 5B for end tab, 6A down be last connection guide gip, 6B be lower link guide gip, 7A be last shunting ball, 7B for shunt ball down, 8A is that upper connecting terminal, 8B are lower connecting terminal.
[embodiment]
Referring to accompanying drawing, the present invention has a detachment device noumenon, comprises upper connecting terminal 8A, lower connecting terminal 8B, frequency division element 1, disjunction skeleton 2, current sensing elements 3 and opens quick-fried element 4, and frequency division element 1 is loaded on disjunction skeleton 2 tops; Current sensing elements 3 with open quick-fried element 4 order stack successively from top to bottom after be assemblied in disjunction skeleton 2 bottoms, on the disjunction skeleton 2, the bottom is connected with lower connecting terminal 8B with upper connecting terminal 8A respectively, it is characterized in that: comprise that also one is set in the outer part flow arrangement in parallel with detachment device noumenon of detachment device noumenon, described part flow arrangement comprises end tab 5A, following end tab 5B, last connection guide gip 6A, lower link guide gip 6B, last shunting ball 7A and following shunting ball 7B, last shunting ball 7A is a hemisphere shape structure with shunting ball 7B discharge face down, on, under shunt ball 7A, the 7B discharge face is isolated the formation discharging gap relatively, last shunting ball 7A is connected with the end of last connection guide gip 6A, the other end of last connection guide gip 6A is connected with last end tab 5A, and last end tab 5 is connected with upper connecting terminal 8; Shunt ball 7B down and be connected with the end of lower link guide gip 6B, the lower link guide gip 6B other end is connected with following end tab 5B, and following end tab 5B is connected with lower connecting terminal 8B.
In an embodiment of the present invention, upper and lower shunting ball 7A, 7B are made by metal graphite composite material, and its discharge face is shaped as sphere, and disjunction skeleton 2 is made by the insulation engineering material.
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 part flow arrangement 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, opens 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 the part flow arrangement action, 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 power frequency (50Hz) afterflow of electric power system, frequency division element 1 two ends do not have high pressure, part flow arrangement 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.
Measured result of the present invention is as shown in the table: from the following table measured data as seen, the present invention tolerates the energy force rate disconnector raising both at home and abroad at present of system operation impulse current more than 2 times, satisfies the requirement of ultrahigh voltage power system requirements tolerance 20 times 〉=1800 peace 2mS rectangular impulse current abilities fully.
The measured result table
Claims (3)
1. large through-flow frequency division and current-distribution type separator, a detachment device noumenon is arranged, comprise upper connecting terminal (8A), lower connecting terminal (8B), frequency division element (1), disjunction skeleton (2), current sensing elements (3) and open quick-fried element (4), frequency division element (1) is loaded on disjunction skeleton (2) top; Current sensing elements (3) with open quick-fried element (4) from top to bottom successively order be assemblied in disjunction skeleton (2) bottom after stacking, on the disjunction skeleton (2), the bottom is connected with lower connecting terminal (8B) with upper connecting terminal (8A) respectively, it is characterized in that: comprise that also one is set in the outer part flow arrangement in parallel with detachment device noumenon of detachment device noumenon, described part flow arrangement comprises end tab (5A), following end tab (5B), last connection guide gip (6A), lower link guide gip (6B), last shunting ball (7A) and following shunting ball (7B), last shunting ball (7A) is a hemisphere shape structure with shunting ball (7B) discharge face down, on, under shunt ball (7A, 7B) discharge face is isolated the formation discharging gap relatively, last shunting ball (7A) is connected with an end of last connection guide gip (6A), the other end of last connection guide gip (6A) is connected with last end tab (5A), and last end tab (5A) is connected with upper connecting terminal (8A); Shunt ball (7B) down and be connected with an end of lower link guide gip (6B), lower link guide gip (6B) other end is connected with following end tab (5B), and following end tab (5B) is connected with lower connecting terminal (8B).
2. according to the large through-flow frequency division and current-distribution type separator of claim 1, it is characterized in that: described upper and lower shunting ball (7A, 7B) is made by metal graphite composite material.
3. according to the large through-flow frequency division and current-distribution type separator of claim or 2, it is characterized in that: disjunction skeleton (2) is made by the insulation engineering material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010247989 CN101916994B (en) | 2010-08-06 | 2010-08-06 | Large through-flow frequency division and current-distribution type separator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010247989 CN101916994B (en) | 2010-08-06 | 2010-08-06 | Large through-flow frequency division and current-distribution type separator |
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| Publication Number | Publication Date |
|---|---|
| CN101916994A true CN101916994A (en) | 2010-12-15 |
| CN101916994B CN101916994B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010247989 Active CN101916994B (en) | 2010-08-06 | 2010-08-06 | Large through-flow frequency division and current-distribution type separator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734823A (en) * | 1985-11-01 | 1988-03-29 | Joslyn Corporation | Fault current interrupter and explosive disconnector for surge arrester |
| CN2588521Y (en) * | 2002-12-25 | 2003-11-26 | 王保巨 | Thermal-explosion type breaker |
| CN2777715Y (en) * | 2005-03-10 | 2006-05-03 | 卫华 | Isolator lightning arrester |
| CN201004353Y (en) * | 2006-09-25 | 2008-01-09 | 深圳市银星电力电子有限公司 | External serial clearance arrester with failure indication device |
| CN201859719U (en) * | 2010-08-06 | 2011-06-08 | 深圳市银星电气股份有限公司 | Large current disconnector for supervoltage lightning arrester |
-
2010
- 2010-08-06 CN CN 201010247989 patent/CN101916994B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734823A (en) * | 1985-11-01 | 1988-03-29 | Joslyn Corporation | Fault current interrupter and explosive disconnector for surge arrester |
| CN2588521Y (en) * | 2002-12-25 | 2003-11-26 | 王保巨 | Thermal-explosion type breaker |
| CN2777715Y (en) * | 2005-03-10 | 2006-05-03 | 卫华 | Isolator lightning arrester |
| CN201004353Y (en) * | 2006-09-25 | 2008-01-09 | 深圳市银星电力电子有限公司 | External serial clearance arrester with failure indication device |
| CN201859719U (en) * | 2010-08-06 | 2011-06-08 | 深圳市银星电气股份有限公司 | Large current disconnector for supervoltage lightning arrester |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| Publication number | Publication date |
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| CN101916994B (en) | 2012-08-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| 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: 20120606 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20120606 Address after: 518000 Chinese Guangdong city of Shenzhen province Baoan District Guanlan Street Community Tourism Da BU Xiang Road Building 1301-101301-121301-141301-16A Applicant after: Shenzhen Silver Star Power Electronic Co., Ltd. Address before: Baoan District Guanlan street Shenzhen Guangdong province 518000 city sightseeing road star high tech Industrial Park Applicant before: Shenzhen Silver Star Electric Co., Ltd. |
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Address after: No. 851, Fangshan Second Road, industrial zone, Xiamen Torch High tech Zone (Xiang'an), Xiamen, Fujian Province Patentee after: Xiamen ABB arrester Co., Ltd Address before: 518000 Guangdong city of Shenzhen province Baoan District Guanlan Street Community Tourism Da BU Xiang Road Building 1301-101301-121301-141301-16A Patentee before: SHENZHEN ABB SILVER STAR ARRESTER Co.,Ltd. |
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| CP03 | Change of name, title or address |