CN105785264B - State-Inspect of High-Voltage Circuit device - Google Patents
State-Inspect of High-Voltage Circuit device Download PDFInfo
- Publication number
- CN105785264B CN105785264B CN201610266012.8A CN201610266012A CN105785264B CN 105785264 B CN105785264 B CN 105785264B CN 201610266012 A CN201610266012 A CN 201610266012A CN 105785264 B CN105785264 B CN 105785264B
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- Prior art keywords
- contact
- breaker
- state
- sensor
- fault alarm
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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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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
Abstract
A kind of State-Inspect of High-Voltage Circuit device is provided, including：Fault alarm contact；And Condition Monitoring Unit, including first sensor, controller and communication interface, wherein when failure electric current leads to circuit breaker tripping in the major loop of breaker, position change occurs for fault alarm contact, position after position change occurs for first sensor sensing fault alarm contact, controller will be spread out of based on the position sensed by first sensor, the fault trip state of monitoring breaker via communication interface in relation to the information of fault trip state.
Description
Technical field
The present invention relates to circuit fields, relate more specifically to a kind of State-Inspect of High-Voltage Circuit device.
Background technology
In most cases, since the electric current of the main contact in breaker is bigger or voltage is higher, it is impossible to directly supervise
Survey combined floodgate, the gate-dividing state of main contact.Generally, it needs to monitor main contact in the assembled auxiliary contact in the outside of breaker
It closes a floodgate, gate-dividing state；And it needs when the assembled fault alarm contact in the outside of breaker carrys out monitoring breaker because failure
The state of dropout, wherein fault alarm contact only can just be acted when breaker is because of fault trip.
The operation principle of current auxiliary contact is：The handle of auxiliary contact and the handle of breaker link；Work as breaker
When combined floodgate or separating brake, the handle of breaker drives the handle of auxiliary contact to move together；The handle band dynamic auxiliary of auxiliary contact is touched
The contact closure or disconnection of head, is switched on or switched off indicator light connected to it or buzzer line, shows the combined floodgate of breaker
Or gate-dividing state.
The operation principle of current fault alarm contact is：The dropout of the dropout driving lever and breaker of fault alarm contact is dialled
Bar links；When breaker since load-side short circuit or overload occurs when failures are threaded off, the dropout driving lever of breaker is prior to disconnected
The handle action of road device, drives the dropout driving lever action of fault alarm contact, and then makes the contact of fault alarm contact from open circuit
Normally open position when device closes a floodgate is transformed into closed position, connects indicator light, buzzer etc. in auxiliary line, and display or prompting are disconnected
The fault trip state of road device.
As can be seen that current auxiliary contact and/or the application of fault alarm contact to be that machine driving contact principle is come real
The monitoring of existing circuit-breaker status, occupied space is larger, complicated, and cost is higher.
Invention content
The present invention provides a kind of novel State-Inspect of High-Voltage Circuit devices.
State-Inspect of High-Voltage Circuit device according to an embodiment of the invention, including：Fault alarm contact；And state prison
Survey unit, including first sensor, controller and communication interface, wherein when in the major loop of breaker failure electric current lead
When causing circuit breaker tripping, position change occurs for fault alarm contact, and first sensor sensing fault alarm contact occurs position and changes
Position after change, fault trip state of the controller based on the position monitoring breaker sensed by first sensor, and via logical
Believe that interface will be spread out of in relation to the information of fault trip state.
State-Inspect of High-Voltage Circuit device according to another embodiment of the present invention, including：Auxiliary contact；And status monitoring list
Member, including second sensor, controller and communication interface, wherein when breaker closing or separating brake, position occurs for auxiliary contact
Change, second sensor senses the position of auxiliary contact, and controller is based on the position monitoring breaker sensed by second sensor
Combined floodgate or gate-dividing state, and via communication interface by relation to close a floodgate or gate-dividing state information spread out of.
State-Inspect of High-Voltage Circuit device according to embodiments of the present invention reduces cost than traditional accessories apparatus, subtracts simultaneously
The small installation space of breaker state monitoring apparatus.
Description of the drawings
From below in conjunction with the accompanying drawings to the present invention specific embodiment description in the present invention may be better understood,
In：
Fig. 1 is that State-Inspect of High-Voltage Circuit device according to embodiments of the present invention connect the schematic diagram used with breaker；
Fig. 2 is the structure diagram that fault alarm contact 1, auxiliary contact 2 and moving contact 4 are installed together；
Fig. 3 is the structure chart that fault alarm contact 1 and auxiliary contact 2 are mounted on to the rivet 7 on moving contact 4；
Fig. 4 is the structure front view of moving contact 4；
Fig. 5 is the structure section view that fault alarm contact 1 and auxiliary contact 2 are linked together by rivet 7 and moving contact 4
Figure；
Fig. 6 is the structure diagram of fault alarm contact base 12；
Fig. 7 is the structure diagram of auxiliary contact seat 22.
Specific embodiment
The feature and exemplary embodiment of various aspects of the invention is described more fully below.In following detailed description
In, it is proposed that many details, in order to provide complete understanding of the present invention.But to those skilled in the art
It will be apparent that the present invention can be implemented in the case of some details in not needing to these details.Below to implementing
The description of example is used for the purpose of by showing that the example of the present invention is better understood from the present invention to provide.The present invention never limits
In any concrete configuration set forth below and algorithm, but cover under the premise of without departing from the spirit of the present invention element,
Any modification, replacement and the improvement of component and algorithm.In the the accompanying drawings and the following description, well known structure and skill is not shown
Art is unnecessary fuzzy to avoid causing the present invention.
The present invention provides a kind of State-Inspect of High-Voltage Circuit device, wherein fault alarm contact and auxiliary contact can be pacified
Mounted in circuit breaker internal, Condition Monitoring Unit is mounted on to the side of the non-thickness direction of breaker.Condition Monitoring Unit includes the
One sensor, second sensor, controller and communication interface, controller by the fault alarm that first sensor senses based on being touched
The position monitoring circuit-breaker status of the auxiliary contact of the position of head and second sensor sensing, and will have shutdown via communication interface
The information of road device state is spread out of to for example, remote monitoring center.The State-Inspect of High-Voltage Circuit device is dropped than traditional accessories apparatus
Low cost, while reduce the installation space of State-Inspect of High-Voltage Circuit device.
Fig. 1 is that State-Inspect of High-Voltage Circuit device according to embodiments of the present invention connect the schematic diagram used with breaker.Such as
Shown in Fig. 1, which includes fault alarm contact 1, auxiliary contact 2 and Condition Monitoring Unit 3.Wherein,
Fault alarm contact 1 is rotationally installed together with moving contact 4；Auxiliary contact 2 is fixedly mounted on moving contact 4；State
Monitoring unit 3 is in the side of the non-thickness direction of breaker and is fixedly mounted together with breaker, including controller
311st, first sensor 312, second sensor 313 and communication interface (not shown).
In the embodiment shown in fig. 1, when failure electric current in the major loop of breaker, breaker mechanism can be in mistake
Trigger action under the action of current protector.At this point, under the action of moving contact 4 and lock 5 phase can occur for fault alarm contact 1
For the position change of moving contact 4, wherein lock 5 is a part for the operating mechanism of breaker, and one end passes through failure
The oblong hole of Alarm contactor 1.When first sensor 312 senses the position signal of the generation of fault alarm contact 1 and by the position
When confidence number sends controller 311 to, controller 311 can analyze and process the position signal, so as to fulfill to breaker
Fault trip state monitoring.Then, controller 311 can be via communication interface by the fault trip state in relation to breaker
Information outflow.
That is, when failure electric current in the major loop of breaker, fault alarm contact 1 is in the work of moving contact 4
With lower generation position change, first sensor 312 senses fault alarm contact 1 and the position after position change, controller 311 occurs
Based on the position sensed by first sensor 312, the fault trip state of monitoring breaker, and via communication interface through there is shutdown
The information outflow of the fault trip state of road device.
In the embodiment shown in fig. 1, when breaker closing or separating brake, moving contact 4 drives auxiliary contact 2 to move together
(without relative motion occurs with auxiliary contact 2), makes auxiliary contact 2 change with respect to the position of second sensor 313.It is auxiliary
Helping contact 2, nearest apart from the position of second sensor 313, second sensor 313 can sense when breaker is in closing position
The stronger position signal generated to auxiliary contact 2, and send this position signal to controller 311 and analyze and process, it controls
Device 311 processed realizes the "on" position monitoring of breaker based on the stronger position signal.Auxiliary contact 2 is in separating brake in breaker
Position letter farthest apart from the position of second sensor 313 during position, that the auxiliary contact 2 that second sensor 313 senses generates
It number can die down and even to disappear, the position signal that controller 311 is died down or disappeared based on this realizes that the gate-dividing state of breaker is supervised
It surveys.Then, controller 311 spreads out of the information of the combined floodgate in relation to breaker or gate-dividing state via communication interface.
That is, when breaker closing or separating brake, auxiliary contact 2 moves together with moving contact 3, second sensor
The position of 313 sensing auxiliary contacts 2, controller 311 is based on the combined floodgate of position monitoring breaker sensed by second sensor 313
Or gate-dividing state, and spread out of the information of the combined floodgate in relation to breaker or gate-dividing state via communication interface.
In some embodiments, fault alarm contact 1 and auxiliary contact 2 can use individually, and can also make simultaneously
With.If fault alarm contact 1 is used alone, the second sensor 313 in Condition Monitoring Unit 3 can remove；If it is used alone
Auxiliary contact 2, the first sensor 312 in Condition Monitoring Unit 3 can be removed.
In some embodiments, first sensor and second sensor can be Hall sensors, fault alarm contact and
Auxiliary contact can respectively include magnet.When the position of fault alarm contact or auxiliary contact changes, it is fixed thereon
Magnet can generate the position of first sensor or second sensor the magnetic field signal of different powers, first sensor or the
The position letter that two sensors are sensed to generate fault alarm contact or auxiliary contact by the magnetic field signal to different powers
Number, and the position signal is transmitted to controller, which is based on by controller.
Fig. 2 is the structure diagram that fault alarm contact 1, auxiliary contact 2 and moving contact 4 are installed together.Such as Fig. 2
Shown, fault alarm contact 1 includes fault alarm contact base 12 and magnet 11；Auxiliary contact 2 includes auxiliary contact seat 22 and magnetic
Iron 21；Fault alarm contact 1 and auxiliary contact 2 are linked together by rivet 7 and moving contact 4.Here, magnet 11 and magnet 21
It can be the same or different, fault alarm contact base 12 can be made with auxiliary contact seat 22 of non-permeable material.
Fig. 3 is the structure chart that fault alarm contact 1 and auxiliary contact 2 are mounted on to the rivet 7 on moving contact 4.Such as Fig. 3 institutes
Show, rivet 7 is the rivet for having step, including the first rivet shaft, the second rivet shaft that length is L2 and riveting that length is L1
Nail head.Wherein, a diameter of ∮ B of the first rivet shaft, a diameter of ∮ A of the second rivet shaft, a diameter of ∮ C of rivet head.
Fig. 4 is the structure front view of moving contact 4.Fig. 5 is that fault alarm contact 1 and auxiliary contact 2 are touched by rivet 7 with dynamic
First 4 structure sectional views to link together.With reference to Fig. 4 and Fig. 5, detailed description fault alarm contact 1 and auxiliary contact 2 with
The mounting structure of moving contact 4.
As shown in Figure 4 and Figure 5, fault alarm contact 1 is linked together by rivet 7 and moving contact 4.The first of rivet 7
The length L1 of rivet shaft is slightly larger than the maximum gauge of fault alarm contact 1；The length L2 of second rivet shaft of rivet 7 is more than dynamic touch
First 4 thickness；The diameter ∮ C of the rivet head of rivet 7 are slightly larger than the diameter of the rivet hole in fault alarm contact 1；Moving contact 4
Rivet hole 61 diameter ∮ A ' slightly larger than the diameter ∮ A of the second rivet shaft of rivet 7, and be slightly less than the first rivet of rivet 7
The diameter ∮ B of axis；It ensure that after fault alarm contact 1 and moving contact 4 rivet between fault alarm contact 1 and moving contact 4 still
There is gap.Due between rivet 7 and the rivet hole 61 of fault alarm contact 1 there are gap, so fault alarm contact 1 is touched with dynamic
It can be relatively rotated after first 4 connection.
As shown in Figure 4 and Figure 5, auxiliary contact 2 is linked together by rivet 7 and moving contact 4.It is set in auxiliary contact 2
There is the stepped hole coordinated with rivet 7；The length L1 of first rivet shaft of rivet 7 is slightly less than the thickness of moving contact 4 and auxiliary contact 2
Stepped hole in large hole the sum of depth；It ensure that auxiliary contact 2 and moving contact 4 and auxiliary contact 2 after the riveting of moving contact 4
Between there is no gap, so auxiliary contact 2 connect with moving contact 4 after relative to the position of moving contact 4 be fixed.
Those skilled in the art are it is to be understood that though it is shown that touched fault alarm using the rivet 7 with step
First 1, the example that auxiliary contact 2 and moving contact 4 link together, but can also utilize do not have in other embodiments
The rivet or screw of step link together fault alarm contact 1, auxiliary contact 2 and moving contact 4.
Fig. 6 is the structure diagram of fault alarm contact base 12.As shown in fig. 6, fault alarm contact 12 includes the first riveting
Nail hole 121, the 122 and first magnet placing groove 123 of round boss being arranged on the first rivet hole 121.Wherein, magnet 11 is put
It puts in the first magnet placing groove 123 of fault alarm contact base 12, the shape of the first magnet placing groove 123 is round or U
Shape (shown in figure round as example), is provided on the side wall of the magnet placing groove a plurality of, such as 3 or more the first fillets erect
Muscle 124, the diameter cut diameter of a circle and be slightly less than magnet 11 that these the first fillet vertical bars 124 are formed, makes magnet 11 and failure report
Part interference fit is generated between alert contact base 12.In some embodiments, magnet 11 can be sticked to event with high temperature resistant glue
Hinder on Alarm contactor seat 12, to prevent magnet 11 from coming off after being heated in use.
It should be noted that in some embodiments, the round boss 122 shown in Fig. 6 is provided only on fault alarm and touches
First 1 contacts with moving contact 4 on the edge of the first rivet hole 121 of side, to reduce fault alarm contact base 12 and moving contact 4
Contact surface, and then reduce the frictional force generated during the motion between moving contact 4 and fault alarm contact 1.
Fig. 7 is the structure diagram of auxiliary contact seat 22.As shown in fig. 7, auxiliary contact seat 22 is placed including the second magnet
221 and second rivet hole 222 of slot.Wherein, 22 edge of auxiliary contact seat have protrusion limit features, with ensure auxiliary contact 2 with
It is kept at an angle between moving contact 4, and prevents auxiliary contact 2 from relatively rotating around rivet 7, make auxiliary contact 2 with moving
Contact 4 is fixedly installed togather.Magnet 21 is placed in the second magnet placing groove 221 of auxiliary contact seat 22, second magnet
The shape of placing groove 221 is round or U-shaped (showing U-shaped as example in figure), is set on the side wall of the second magnet placing groove 221
It is equipped with a plurality of, such as 3 or more the second fillet vertical bars 223, the tangential circle diameter undersized that these the second fillet vertical bars 223 are formed
In the diameter of magnet 21, make to generate part interference fit between magnet 21 and auxiliary contact seat 22.It in some embodiments, can be with
Magnet 21 is sticked on fault alarm contact base 22 with high temperature resistant glue, to prevent magnet 21 from being taken off after being heated in use
It falls.
In some embodiments, Condition Monitoring Unit 3 can screw, hook, or both combine by way of with it is disconnected
Road device is installed together.Control device is mounted in state detection unit 3.Control device includes controller 311, first sensor
312nd, second sensor 313 and communication interface.Controller 311 is sensed to first sensor 312 and second sensor 313
Position signal analyzed and processed after, can know circuit-breaker status and can be via communication interface by related breaker shape
The information outflow of state.In some embodiments, controller 311 can utilize light or voice signal, to indicate circuit-breaker status.
State-Inspect of High-Voltage Circuit device according to embodiments of the present invention is more attached than traditional auxiliary contact and fault alarm contact
Part is simple in structure, reduces cost.Meanwhile Condition Monitoring Unit 3 can be installed in the side of the non-thickness direction of breaker,
So as to effectively save installation space.
The present invention can realize in other specific forms, without departing from its spirit and essential characteristics.Therefore, current reality
Apply example be all counted as being exemplary rather than in all respects it is limited, the scope of the present invention by appended claims rather than on
State description definition, also, fall into claim meaning and equivalent in the range of whole change all to be included in this
Among the range of invention.
Claims (11)
1. a kind of State-Inspect of High-Voltage Circuit device, which is characterized in that including：
Fault alarm contact；And
Condition Monitoring Unit, including first sensor, controller and communication interface, wherein
When failure electric current leads to the circuit breaker tripping in the major loop of the breaker, the fault alarm contact hair
Raw position change,
The first sensor senses the fault alarm contact and the position after position change occurs,
The controller monitors the fault trip state of the breaker based on the position sensed by the first sensor, and
It will be spread out of via the communication interface in relation to the information of the fault trip state.
2. State-Inspect of High-Voltage Circuit device as described in claim 1, which is characterized in that further include：
Auxiliary contact, wherein
The Condition Monitoring Unit further includes second sensor,
When the breaker closing or separating brake, position change occurs for the auxiliary contact,
The second sensor senses the position of the auxiliary contact,
The controller monitors the combined floodgate or gate-dividing state of the breaker based on the position sensed by the second sensor,
And the information in relation to the combined floodgate or gate-dividing state is spread out of via the communication interface.
3. State-Inspect of High-Voltage Circuit device as claimed in claim 2, it is characterised in that
The moving contact of the fault alarm contact and the breaker is installed in rotation on together,
When failure electric current leads to the circuit breaker tripping in the major loop of the breaker, the fault alarm contact exists
Position change occurs under the action of the moving contact.
4. State-Inspect of High-Voltage Circuit device as claimed in claim 3, it is characterised in that
The moving contact of the auxiliary contact and the breaker is fixedly mounted together,
When the breaker closing or separating brake, the auxiliary contact moves together with the moving contact.
5. State-Inspect of High-Voltage Circuit device as described in claim 1, it is characterised in that
The moving contact of the fault alarm contact and the breaker is installed in rotation on together,
When failure electric current leads to the circuit breaker tripping in the major loop of the breaker, the fault alarm contact exists
Position change occurs under the action of the moving contact.
6. State-Inspect of High-Voltage Circuit device as described in claim 1, which is characterized in that the Condition Monitoring Unit is located at described
The side of the non-thickness direction of breaker.
7. State-Inspect of High-Voltage Circuit device as claimed in claim 2, which is characterized in that the first sensor and the second sensing
Device is Hall sensor.
8. State-Inspect of High-Voltage Circuit device as claimed in claim 7, which is characterized in that the fault alarm contact includes failure
Alarm contactor seat and magnet, the magnet are fixedly mounted together with the fault alarm contact base.
9. State-Inspect of High-Voltage Circuit device as claimed in claim 7, which is characterized in that the auxiliary contact includes auxiliary contact
Seat and magnet, the magnet are fixedly mounted together with the auxiliary contact seat.
10. a kind of State-Inspect of High-Voltage Circuit device, which is characterized in that including：
Auxiliary contact；And
Condition Monitoring Unit, including second sensor, controller and communication interface, wherein
When the breaker closing or separating brake, position change occurs for the auxiliary contact,
The second sensor senses the position of the auxiliary contact,
The controller monitors the combined floodgate or gate-dividing state of the breaker based on the position sensed by the second sensor,
And the information in relation to the combined floodgate or gate-dividing state is spread out of via the communication interface.
11. State-Inspect of High-Voltage Circuit device as claimed in claim 10, it is characterised in that
The moving contact of the auxiliary contact and the breaker is fixedly mounted together,
When the breaker closing or separating brake, the auxiliary contact moves together with the moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266012.8A CN105785264B (en) | 2016-04-25 | 2016-04-25 | State-Inspect of High-Voltage Circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266012.8A CN105785264B (en) | 2016-04-25 | 2016-04-25 | State-Inspect of High-Voltage Circuit device |
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| Publication Number | Publication Date |
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| CN105785264A CN105785264A (en) | 2016-07-20 |
| CN105785264B true CN105785264B (en) | 2018-06-08 |
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| CN201610266012.8A Active CN105785264B (en) | 2016-04-25 | 2016-04-25 | State-Inspect of High-Voltage Circuit device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872839B (en) * | 2018-04-23 | 2021-05-04 | 珠海格力电器股份有限公司 | Method, device and system for detecting pull-in fault of contactor |
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| JP3711153B2 (en) * | 1995-03-24 | 2005-10-26 | 寺崎電気産業株式会社 | Circuit breaker |
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| EP1100100B1 (en) * | 1999-11-12 | 2006-10-04 | MAGNETI MARELLI SISTEMI ELETTRONICI S.p.A. | A circuit for detecting the state of electrical switches |
| CN101568982A (en) * | 2007-01-22 | 2009-10-28 | 西门子公司 | Method for detecting a switch position of an isolating switch, or of a grounding switch |
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| Publication number | Publication date |
|---|---|
| CN105785264A (en) | 2016-07-20 |
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