CN105405694A - Interlocking device for circuit breaker and isolating switch - Google Patents
Interlocking device for circuit breaker and isolating switch Download PDFInfo
- Publication number
- CN105405694A CN105405694A CN201510877077.1A CN201510877077A CN105405694A CN 105405694 A CN105405694 A CN 105405694A CN 201510877077 A CN201510877077 A CN 201510877077A CN 105405694 A CN105405694 A CN 105405694A
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- isolating switch
- interlock
- driving member
- separating brake
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
Abstract
The invention discloses an interlocking device for a circuit breaker and an isolating switch. The interlocking device comprises an input connecting lever, a connecting rod, an interlocking plate and a transmission part, wherein the transmission part is in transmission connection with a transmission shaft of the isolating switch; the interlocking plate comprises an articulated part and a limiting part; the articulated part is articulated on a corresponding cabinet body; the limiting part is used for limiting rotation of the transmission part; the rotating axis of the input connecting lever, the rotating axis of the transmission part and the articulated axis of the interlocking plate are parallel to one another; a closing limiting block and an opening limiting block are arranged on the transmission part; when the circuit breaker is in a closed state, a limiting fit is provided between the limiting part of the interlocking plate and the closing limiting block ; and when the circuit breaker is in an open state, the interlocking plate counterclockwise rotates and liftsrotation limiting on the transmission part. The interlocking device can achieve the interlocking performance without a spring; and the reliability is high. The acting force generated when a limiting fit is provided between the interlocking plate and the transmission part acts on the articulated shaft of the interlocking plate, so that the connecting rod in transmission connection with the interlocking plate receives low force; and the circuit breaker is hardly affected.
Description
Technical field
The present invention relates to medium voltage switching technology field, be specifically related to the interlock of a kind of circuit breaker and isolating switch.
Background technology
On medium voltage switchgear equipment, need well to control the divide-shut brake order of circuit breaker and isolating switch, cause danger and infringement to avoid operating improperly.When circuit breaker is in closing position, do not allow to carry out separating brake, closing operation to isolating switch, the state of isolating switch does not affect the free operant of circuit breaker simultaneously.In order to prevent hot line job, between breaker main shaft and the manual manipulation of cabinet door, increase interlock, with the safety of support personnel and equipment.
Chinese patent CN204740968U(authorized announcement date is 2015.11.04) disclose the interlocking device of a kind of breaker of switch cabinet and isolating switch, this interlocking device comprises fanning strip I, fanning strip II and blocking lever, fanning strip I is fixed on breaker main shaft, and the tip location in the plate face of fanning strip II is hinged on the left end of cabinet pole.The upper end thereof of blocking lever in the plate face of fanning strip I on the position of arc-shaped side.The right-hand member of back-moving spring is fixed on side cabinet, and the left end level pressure of back-moving spring is on the edge of fanning strip II bottom hypotenuse.The left end of cabinet pin passes back-moving spring inner space and is fixed on the left end of back-moving spring.When circuit breaker is in "on" position, fanning strip II makes back-moving spring compress, and the right-hand member of cabinet pin can block hand behaviour pivot pin makes it extract, and then the operating grip on hand behaviour cannot rotate, and the conjunction that cannot realize isolating switch divides; When
During breaker open operation, breaker main shaft drives fanning strip I to turn an angle, and then the mobile fanning strip II that drives of blocking lever rotates, back-moving spring is upheld left, and then drive cabinet pin to move to left, the stop that hand behaviour pivot pin loses cabinet pin can be extracted, and now isolated operation bar can be driven to move by the rotation of operating grip and the conjunction that realizes isolating switch divides.This interlocking gear can play chain effect to a certain extent, but when carrying out isolated operation, needs back-moving spring wherein to work.And back-moving spring is elastic component, in use for some time, elasticity changes, and probably causes meeting instructions for use, finally causes the reliability of this interlocking gear to reduce.
Summary of the invention
The object of this invention is to provide the interlock of the high circuit breaker of a kind of reliability and isolating switch, can not be operated to realize the isolating switch when breaker closing state, the state of isolating switch does not affect the divide-shut brake of circuit breaker.
In order to realize above object, circuit breaker of the present invention is as follows with the technical scheme of the interlock of isolating switch: circuit breaker and the interlock of isolating switch comprise quadric chain and the driving member for being connected with the transmission shaft driven of isolating switch, described quadric chain comprises input connecting lever, connecting rod and interlock plate, one end of connecting rod is connected with input connecting lever, the other end is connected with described interlock plate, described input connecting lever has the power intake for being in transmission connection with output shaft of circuit breaker, described interlock plate comprises for being hinged on articulated section on corresponding cabinet and for the limiting section to driving member rotary spacing, the pivot center of described input connecting lever, the hinge axes of the pivot center of driving member and interlock plate and described cabinet extends all along the longitudinal direction and is parallel to each other, described rotating part is arranged at intervals with combined floodgate guide vane end stop in the circumferential direction rotating around it axis, separating brake guide vane end stop, "on" position is at circuit breaker, the limiting section of interlock plate coordinates to stop that driving member rotates counterclockwise or coordinates to stop that driving member rotates clockwise with separating brake guide vane end stop is spacing with described combined floodgate guide vane end stop is spacing, gate-dividing state is at circuit breaker, interlock plate rotates counterclockwise and relieves the rotary spacing to driving member.
Described interlock plate is fanning strip, described interlock plate also comprises connecting portion, the other end and the connecting portion of described connecting rod are articulated and connected, described limiting section and connecting portion lay respectively at the both sides of described articulated section, the circular arc portion of described fanning strip forms described limiting section, and described limiting section has the spacing mating surface of circular arc.
Described combined floodgate guide vane end stop is combined floodgate roller, is in "on" position at circuit breaker, the outer peripheral face of described combined floodgate roller and the spacing mating surface of circular arc of described limiting section tangent.
Described separating brake guide vane end stop is separating brake roller, is in "on" position at circuit breaker, the outer peripheral face of described separating brake roller and the spacing mating surface of circular arc of described limiting section tangent.
Described separating brake roller, combined floodgate roller are all nested on the end face of driving member, and the outer face of described separating brake roller, combined floodgate roller all protrudes from the end face of described driving member.
Described driving member is formed by the gear in corresponding isolating switch, and described separating brake roller, combined floodgate roller are all arranged on the gear face of described gear.
Described gear is partial gear.
Described interlock plate is in the shape of the letter V.
Beneficial effect of the present invention: the interlock of circuit breaker of the present invention and isolating switch, "on" position is at circuit breaker, no matter isolating switch is for separating brake or closing position, the limiting section of interlock plate can with corresponding separating brake guide vane end stop or combined floodgate guide vane end stop be spacing coordinates, and isolating switch can not be operated.When circuit breaker is in gate-dividing state, interlock plate removes spacing to rotating part, and isolating switch could action, and isolating switch is in the divide-shut brake action what state does not affect circuit breaker.Interlock is not by spring, and just can realize Interlock Function, reliability is relatively high.Between interlock plate with rotating part, the spacing active force produced when coordinating can act on the jointed shaft of interlock plate, makes the connecting rod that is in transmission connection with interlock plate stressed little, does not almost affect, ensuring smooth transmission on circuit breaker.
Accompanying drawing explanation
Fig. 1 is the structural representation (state one) of the interlock of circuit breaker of the present invention and isolating switch;
Fig. 2 is the structural representation (state two) of the interlock of circuit breaker of the present invention and isolating switch;
Fig. 3 is the structural representation (state three) of the interlock of circuit breaker of the present invention and isolating switch;
Fig. 4 is the structural representation (state four) of the interlock of circuit breaker of the present invention and isolating switch.
Embodiment
The embodiment of the interlock of circuit breaker of the present invention and isolating switch: as Figure 1-4, circuit breaker and the interlock of isolating switch comprise quadric chain and the driving member for being connected with the transmission shaft driven of isolating switch, quadric chain comprises input connecting lever 2, connecting rod 3 and interlock plate, one end of connecting rod 3 is connected with input connecting lever 2, the other end is connected with interlock plate 5, input connecting lever 2 has the power intake for being in transmission connection with output shaft of circuit breaker 1, interlock plate comprises for being hinged on articulated section 51 on corresponding cabinet and for the limiting section 52 to driving member rotary spacing, interlock plate 5 is hinged on cabinet by bearing pin 4.The pivot center of input connecting lever 2, pivot center and the interlock plate 5 of driving member 7 extend all along the longitudinal direction with the hinge axes of cabinet and are parallel to each other, rotating part 7 is arranged at intervals with combined floodgate guide vane end stop in the circumferential direction rotating around it axis, separating brake guide vane end stop, "on" position is at circuit breaker, the limiting section of interlock plate coordinates to stop that driving member rotates counterclockwise or coordinates to stop that driving member rotates clockwise with separating brake guide vane end stop is spacing with described combined floodgate guide vane end stop is spacing, gate-dividing state is at circuit breaker, interlock plate rotates counterclockwise and relieves the rotary spacing to driving member.
The fanning strip of interlock plate 5 for being in the shape of the letter V, interlock plate 5 also comprises connecting portion, and the other end and the connecting portion of connecting rod 3 are articulated and connected, and limiting section 52 and connecting portion lay respectively at the both sides of articulated section, the circular arc portion of fanning strip forms limiting section 52, and limiting section 52 has the spacing mating surface of circular arc.Combined floodgate guide vane end stop is combined floodgate roller 61, is in "on" position at circuit breaker, the outer peripheral face of combined floodgate roller 61 and the spacing mating surface of the circular arc of limiting section tangent.Separating brake guide vane end stop is separating brake roller 62, is in "on" position at circuit breaker, the outer peripheral face of separating brake roller 62 and the spacing mating surface of the circular arc of limiting section tangent.Driving member 7 is formed by the gear in corresponding isolating switch, and gear is partial gear.Separating brake roller 62, combined floodgate roller 61 are all arranged on the gear face of gear.Gear face is provided with groove or hole, separating brake roller 62, combined floodgate roller 61 are all nested on the end face of driving member, and the outer face of separating brake roller 62, combined floodgate roller 61 all protrudes from the end face of driving member.
Four kinds of states that interlock of the present invention is complete are (1) breaker closing respectively, two station disconnecting switch gate-dividing states; (2) breaker closing, two station disconnecting switch "on" positions; (3) breaker open operation, two station disconnecting switch gate-dividing states; (4) breaker open operation, two station disconnecting switch "on" positions.Just often kind of state is described respectively below.
As shown in Figure 1; circuit breaker is in "on" position; interlock plate 5 and combined floodgate roller 61 tangent; if operation two station mechanism separating brakes are to (counterclockwise rotating in figure) during combined floodgate; combined floodgate roller 61 withstands interlock plate 5, and active force acts directly on bearing pin 4 by interlock plate 5, and other parts are stressed hardly; protective circuit breaker is unaffected, and when guaranteeing breaker closing, two station disconnecting switchs can not be operated.
As shown in Figure 2; circuit breaker is in "on" position; interlock plate 5 and separating brake roller 62 tangent; if operation two station mechanisms close a floodgate during separating brake (in figure, clockwise direction rotates); separating brake roller 62 withstands interlock plate 5, and active force acts directly on bearing pin 4 by interlock plate 5, and other parts are stressed hardly; protective circuit breaker is unaffected, and when guaranteeing breaker closing, two stations can not be operated.
As shown in Figure 3, when circuit breaker is from "on" position Fig. 1 to gate-dividing state Fig. 3, output shaft of circuit breaker 1 turns clockwise, drive input connecting lever 2, connecting rod 3, promotion interlock plate rotates counterclockwise, interlock plate 5 is thrown off combined floodgate roller 61 and is arrived the position not having with combined floodgate roller 61, separating brake roller 62 to interfere, at this moment two station disconnecting switchs can close a floodgate, and realize only having circuit breaker under gate-dividing state, could operate two station disconnecting switchs.
As shown in Figure 4, when circuit breaker is from "on" position Fig. 2 to gate-dividing state Fig. 4, output shaft of circuit breaker 1 turns clockwise, drive input connecting lever 2, connecting rod 3, promotion interlock plate rotates counterclockwise, interlock plate 5 is thrown off separating brake roller 62 and is arrived the position not having with combined floodgate roller 61, separating brake roller 62 to interfere, at this moment two station disconnecting switchs can separating brake, realizes only having circuit breaker under gate-dividing state, could operate two station disconnecting switchs.
In the present embodiment, isolating switch is mainly for two station disconnecting switchs.
In other embodiments, interlock plate also can not adopt fanning strip, the shape of the limiting section of interlock plate may also be leg-of-mutton and non-radiused, leg-of-mutton limiting section is equivalent to have two spacing mating surfaces, one for coordinating with the outer peripheral face of combined floodgate roller is spacing, another is for coordinating with the outer peripheral face of separating brake roller is spacing.
In other embodiments, driving member is also not limited to above-mentioned gear, also separately can arrange a gear as driving member, be connected as long as can meet driving member with the transmission shaft driven of isolating switch, and isolating switch, when action, can drive this driving member to rotate.Driving member is not partial gear yet, and why arranging partial gear is that itself can not rotating 360 degrees, and driving member may also be complete gear, or disk, or the disk-like structure of not rounded.
In other embodiments, separating brake, combined floodgate roller also can be weldingly fixed on driving member.Separating brake roller, combined floodgate roller also can replace with bearing pin, or adopt limiting plate, is not limited to cylindricality.
Claims (8)
1. the interlock of circuit breaker and isolating switch, it is characterized in that: comprise quadric chain and the driving member for being connected with the transmission shaft driven of isolating switch, described quadric chain comprises input connecting lever, connecting rod and interlock plate, one end of connecting rod is connected with input connecting lever, the other end is connected with described interlock plate, described input connecting lever has the power intake for being in transmission connection with output shaft of circuit breaker, described interlock plate comprises for being hinged on articulated section on corresponding cabinet and for the limiting section to driving member rotary spacing, the pivot center of described input connecting lever, the hinge axes of the pivot center of driving member and interlock plate and described cabinet extends all along the longitudinal direction and is parallel to each other, described rotating part is arranged at intervals with combined floodgate guide vane end stop in the circumferential direction rotating around it axis, separating brake guide vane end stop, "on" position is at circuit breaker, the limiting section of interlock plate coordinates to stop that driving member rotates counterclockwise or coordinates to stop that driving member rotates clockwise with separating brake guide vane end stop is spacing with described combined floodgate guide vane end stop is spacing, gate-dividing state is at circuit breaker, interlock plate rotates counterclockwise and relieves the rotary spacing to driving member.
2. the interlock of circuit breaker according to claim 1 and isolating switch, it is characterized in that: described interlock plate is fanning strip, described interlock plate also comprises connecting portion, the other end and the connecting portion of described connecting rod are articulated and connected, described limiting section and connecting portion lay respectively at the both sides of described articulated section, the circular arc portion of described fanning strip forms described limiting section, and described limiting section has the spacing mating surface of circular arc.
3. the interlock of circuit breaker according to claim 2 and isolating switch, it is characterized in that: described combined floodgate guide vane end stop is combined floodgate roller, be in "on" position at circuit breaker, the outer peripheral face of described combined floodgate roller and the spacing mating surface of circular arc of described limiting section tangent.
4. the interlock of circuit breaker according to claim 3 and isolating switch, it is characterized in that: described separating brake guide vane end stop is separating brake roller, be in "on" position at circuit breaker, the outer peripheral face of described separating brake roller and the spacing mating surface of circular arc of described limiting section tangent.
5. the interlock of circuit breaker according to claim 4 and isolating switch, it is characterized in that: described separating brake roller, combined floodgate roller are all nested on the end face of driving member, the outer face of described separating brake roller, combined floodgate roller all protrudes from the end face of described driving member.
6. the interlock of circuit breaker according to claim 5 and isolating switch, is characterized in that: described driving member is formed by the gear in corresponding isolating switch, and described separating brake roller, combined floodgate roller are all arranged on the gear face of described gear.
7. the interlock of circuit breaker according to claim 6 and isolating switch, is characterized in that: described gear is partial gear.
8. the circuit breaker according to claim 1 to 7 any one and the interlock of isolating switch, is characterized in that: described interlock plate is in the shape of the letter V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877077.1A CN105405694B (en) | 2015-12-03 | 2015-12-03 | The interlock of breaker and disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877077.1A CN105405694B (en) | 2015-12-03 | 2015-12-03 | The interlock of breaker and disconnecting switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105405694A true CN105405694A (en) | 2016-03-16 |
| CN105405694B CN105405694B (en) | 2018-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510877077.1A Active CN105405694B (en) | 2015-12-03 | 2015-12-03 | The interlock of breaker and disconnecting switch |
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| Country | Link |
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| CN (1) | CN105405694B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106340821A (en) * | 2016-10-20 | 2017-01-18 | 莱福士电力电子设备（深圳）有限公司 | Switchgear interlocking mechanism and switchgear |
| CN106783291A (en) * | 2017-01-03 | 2017-05-31 | 镇江华源晋昌电器有限公司 | Breaker and isolator operation interlocking mechanism |
| CN107527759A (en) * | 2017-08-23 | 2017-12-29 | 许继集团有限公司 | Three-station release unit and its interlock |
| CN110896006A (en) * | 2019-11-18 | 2020-03-20 | 许继集团有限公司 | Electrical interlocking device of circuit breaker and isolating switch and pole-mounted switch |
| CN112967898A (en) * | 2021-04-09 | 2021-06-15 | 安徽新高电气有限公司 | Permanent magnet breaker and isolator interlocking mechanism |
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| CN203966879U (en) * | 2014-07-22 | 2014-11-26 | 河南森源电气股份有限公司 | A kind of secondary aviation socket interlock of high-tension switch cabinet |
| CN204740968U (en) * | 2015-06-08 | 2015-11-04 | 山东泰开真空开关有限公司 | Switchgear circuit breaker and isolator's interlocking device |
| CN205303238U (en) * | 2015-12-03 | 2016-06-08 | 平高集团有限公司 | Circuit breaker and isolator's interlock |
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2015
- 2015-12-03 CN CN201510877077.1A patent/CN105405694B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201829382U (en) * | 2010-10-21 | 2011-05-11 | 常州市明及电气技术开发有限公司 | Interlocking mechanism of isolation switch and circuit breaker |
| CN202373489U (en) * | 2011-12-19 | 2012-08-08 | 扬州新概念电气有限公司 | Interlocking mechanism between high-voltage circuitbreaker and integrated isolating switch |
| CN203966879U (en) * | 2014-07-22 | 2014-11-26 | 河南森源电气股份有限公司 | A kind of secondary aviation socket interlock of high-tension switch cabinet |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340821A (en) * | 2016-10-20 | 2017-01-18 | 莱福士电力电子设备（深圳）有限公司 | Switchgear interlocking mechanism and switchgear |
| CN106340821B (en) * | 2016-10-20 | 2018-02-27 | 莱福士电力电子设备（深圳）有限公司 | Interlocking mechanism of switch cabinet and switch cubicle |
| CN106783291A (en) * | 2017-01-03 | 2017-05-31 | 镇江华源晋昌电器有限公司 | Breaker and isolator operation interlocking mechanism |
| CN107527759A (en) * | 2017-08-23 | 2017-12-29 | 许继集团有限公司 | Three-station release unit and its interlock |
| CN107527759B (en) * | 2017-08-23 | 2019-01-01 | 许继集团有限公司 | Three-station-release unit and its interlock |
| CN110896006A (en) * | 2019-11-18 | 2020-03-20 | 许继集团有限公司 | Electrical interlocking device of circuit breaker and isolating switch and pole-mounted switch |
| CN112967898A (en) * | 2021-04-09 | 2021-06-15 | 安徽新高电气有限公司 | Permanent magnet breaker and isolator interlocking mechanism |
| CN112967898B (en) * | 2021-04-09 | 2022-04-22 | 安徽新高电气有限公司 | Permanent magnet breaker and isolator interlocking mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105405694B (en) | 2018-10-16 |
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