CN201229896Y - Interlocking control apparatus for opening and closing of outdoor vacuum circuit breaker - Google Patents
Interlocking control apparatus for opening and closing of outdoor vacuum circuit breaker Download PDFInfo
- Publication number
- CN201229896Y CN201229896Y CNU2008200288822U CN200820028882U CN201229896Y CN 201229896 Y CN201229896 Y CN 201229896Y CN U2008200288822 U CNU2008200288822 U CN U2008200288822U CN 200820028882 U CN200820028882 U CN 200820028882U CN 201229896 Y CN201229896 Y CN 201229896Y
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- CN
- China
- Prior art keywords
- circuit breaker
- closing
- switch
- interlocking
- isolating switch
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- 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.)
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Abstract
The utility model discloses an opening and closing interlocking control device of an outdoor vacuum circuit breaker, comprising an interlocking panel (5), a circuit breaker operating mechanism (3) and a long connecting rod stop pin (4) of which the expansion and contraction is controlled by the circuit breaker operating mechanism (3). A travel switch is arranged near a side through hole of a base (7) of an isolating switch and is connected in a closing loop of an internal control circuit of the circuit breaker operating mechanism (3); and a laminating arm of the stroke switch (6) is tightly contacted with the interlocking panel (5). When the isolating switch is in the tripping state, a normally closed contact of the stroke switch is opened and the circuit breaker is in refused and closing state; when the isolating switch is in the closing state, the normally closed contact of the stroke switch is reset, the closing loop is switched on and the circuit breaker is allowed to be closed. As the combination of mechanical and electrical double interlocking, the utility model forms a stable fault proof interlocking mechanism, thus being safe and reliable and having simple structure and convenient installation.
Description
Technical field
The utility model relates to a kind of outdoor vacuum circuit breaker, and what be specifically related to is a kind of outdoor vacuum circuit breaker folding interlock control apparatus.
Background technology
What present the most widely used outdoor vacuum circuit breaker adopted is three-phase column support type structure, this outdoor vacuum circuit breaker is mainly by breaker body 1, isolating switch 2 and operating mechanism 3 three parts are formed (as depicted in figs. 1 and 2), its breaker body is with vacuum interrupter, main conductive circuit, the insulation support waits parts to organically combine, be integrated into a pole, and the isolating switch A of circuit breaker choosing dress, B, C three links, obviously visible fracture is arranged, also possesses breaker body mechanical anti-misoperation interlock, its break performance is reliable and stable, does not have burning, explosion hazard.
But the interlock of this outdoor vacuum circuit breaker is owing to drive that long connecting rod spacer pin 4 stretching in the through hole of isolating switch base side realize when only just relying on the conversion of circuit breaker operation mechanism deciliter position.In actual mechanical process; often occur interlock plate 5 in rotation process, spacer pin 4 pushed up back original position or with spacer pin push up metaboly; make the protective effect of spacer pin loss of interlocking; and then the misoperation of generation isolating switch under charged state; cause hard arc to produce, operating personnel's security incident takes place.
The utility model content
The purpose of this utility model is to overcome deficiency of the prior art, proposes a kind of safe and reliable outdoor vacuum circuit breaker folding interlock control apparatus.
The technical scheme that realizes above-mentioned purpose is: outdoor vacuum circuit breaker folding interlock control apparatus, comprise interlock plate, circuit breaker operation mechanism and be subjected to circuit breaker operation mechanism to control its flexible long connecting rod spacer pin, through hole is attached with a travel switch in isolating switch base side, travel switch is connected in the closing circuit of breaker operating mechanism internal control circuit, and the laminating arms of travel switch and interlock plate are in tight contact condition.
Operation principle of the present utility model is: when isolating switch was in gate-dividing state, interlock plate was depressed the travel switch laminating arms, and the travel switch normally-closed contact of string in closing circuit is opened, and circuit breaker is in and is rejected "on" position; Interlock plate separates with the travel switch laminating arms when isolating switch is in "on" position, and the travel switch normally-closed contact of string in closing circuit resets, and closing circuit is connected, and circuit breaker is in and is allowed to "on" position.
The utility model outdoor vacuum circuit breaker folding interlock control apparatus is owing to be the combination of machinery and electric dual interlock, formed the firm anti-error interlocking device of a cover, thoroughly stopped the possibility of isolating switch hot line job, therefore greatly improved the security reliability of circuit breaker, and this control device is simple in structure, installs easily.
Description of drawings
Fig. 1 is the structural representation of a kind of outdoor vacuum circuit breaker in the prior art.
Fig. 2 is the lateral plan of Fig. 1.
Fig. 3 is the scheme of installation of the utility model outdoor vacuum circuit breaker folding interlock control apparatus.
Fig. 4 is the structural representation of the utility model outdoor vacuum circuit breaker folding interlock control apparatus.
Fig. 5 is the circuit diagram that the utility model travel switch is connected with breaker body.
Among the figure: 1. breaker body, 2. isolating switch, 3. breaker operating mechanism, 4. interlock plate, 5. long connecting rod spacer pin, 6. travel switch, 7. isolating switch base.
Embodiment
Below in conjunction with Figure of description and embodiment utility model is further described.
What Fig. 3 showed is a kind of embodiment schematic diagram that model is the folding interlock control apparatus on the ZW32-12 type outdoor vacuum circuit breaker that is installed in.Travel switch 6 is installed near the lower right of isolating switch base 7 side through holes, the laminating arms of travel switch 6 and interlock plate 5 are in tight contact condition, the two ends of travel switch 6 are connected by the closing circuit of lead with breaker operating mechanism 3 inner control circuits, form closed circuit as shown in Figure 4.
As shown in Figure 4, CK is a travel switch among the figure, and DL is an auxiliary switch, and M is an energy storage motor, and DX is a rectifier cell, and HQ is a closing coil, and TQ is a switching winding.When the user pressed the accumulation power supply button, electric current was switched on to energy storage motor by normally-closed contact a1, the a2 of the travel switch of CKa, and mechanism carries out energy storage.By the conversion of travel switch contact, CKa contact a1, a2 normally-closed contact were opened after energy storage finished, and disconnected tank circuit, and CKa normally opened contact a3, the a4 closure in the closing circuit is ready for closing a floodgate simultaneously.The DL contact is normally closed in the closing circuit at this moment, and CKb, CKc contact are normally opened contact.CKb, CKc are isolating switch interlocking travel switch, its b1, b2 when being set to the isolating switch separating brake, c1, c2 contact are installed for often opening early stage, and normally-closed contact was opened normally opened contact b1, b2, c1, c2 closure simultaneously after isolating switch closed a floodgate.At this moment, b1, b2, c1, c2 are normally opened contact in the closing circuit, and its normally opened contact was just closed after isolating switch all closed a floodgate before and after waiting, and closing circuit can constitute current circuit, and the user carries out can closing a floodgate after the reclosing command operation.If forward and backward isolating switch has one not close a floodgate, the closing circuit of operating mechanism is in open circuit all the time, can't close a floodgate.The interlocking action can realize.The b3 of CKb, CKc, b4, c3, c4 contact make things convenient for user's telemonitoring for the long-range indication model that the user provides isolating switch.When the user needs interruption maintenance to safeguard, for avoiding operator's hot line job isolating switch,, make the isolating switch can't separating brake as long as the spacer pin that circuit breaker is in the "on" position mechanical interlocks is in the position that ejects all the time.Have only ability disconnecting switch operation after spacer pin withdraws from behind the breaker open operation.
Claims (1)
1. outdoor vacuum circuit breaker folding interlock control apparatus, comprise interlock plate (5), circuit breaker operation mechanism (3) and be subjected to circuit breaker operation mechanism (3) to control its flexible long connecting rod spacer pin (4), it is characterized in that: through hole is attached with a travel switch (6) in isolating switch base (7) side, described travel switch (6) is connected in the closing circuit of described breaker operating mechanism (3) internal control circuit, and the laminating arms of travel switch (6) and described interlock plate (5) are in tight contact condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200288822U CN201229896Y (en) | 2008-04-18 | 2008-04-18 | Interlocking control apparatus for opening and closing of outdoor vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200288822U CN201229896Y (en) | 2008-04-18 | 2008-04-18 | Interlocking control apparatus for opening and closing of outdoor vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201229896Y true CN201229896Y (en) | 2009-04-29 |
Family
ID=40634838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200288822U Expired - Lifetime CN201229896Y (en) | 2008-04-18 | 2008-04-18 | Interlocking control apparatus for opening and closing of outdoor vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201229896Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891046A (en) * | 2012-09-21 | 2013-01-23 | 北海银河开关设备有限公司 | Circuit breaker interlocking device |
| CN103165353A (en) * | 2013-03-01 | 2013-06-19 | 上海电器科学研究院 | Emergency latching device for low-voltage circuit breaker |
-
2008
- 2008-04-18 CN CNU2008200288822U patent/CN201229896Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891046A (en) * | 2012-09-21 | 2013-01-23 | 北海银河开关设备有限公司 | Circuit breaker interlocking device |
| CN102891046B (en) * | 2012-09-21 | 2015-03-18 | 北海银河开关设备有限公司 | Circuit breaker interlocking device |
| CN103165353A (en) * | 2013-03-01 | 2013-06-19 | 上海电器科学研究院 | Emergency latching device for low-voltage circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090429 |
|
| CX01 | Expiry of patent term |