CN105954020B - The synchronism detection method and device of disconnecting switch - Google Patents
The synchronism detection method and device of disconnecting switch Download PDFInfo
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- CN105954020B CN105954020B CN201610377783.4A CN201610377783A CN105954020B CN 105954020 B CN105954020 B CN 105954020B CN 201610377783 A CN201610377783 A CN 201610377783A CN 105954020 B CN105954020 B CN 105954020B
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of synchronism detection method and device of disconnecting switch, the disconnecting switch includes main contact and auxiliary contact, the method includes, acquire that the auxiliary contact is switched to the first moment of the second state by first state and the main contact is switched to by the first state the second moment of second state；The synchronism of the main contact and auxiliary contact movement is judged according to first moment and second moment.The scheme of the application due to the synchronism for switching the switching action moment of main contact as detection and isolation reference factor, so, the scheme of the application can accurately realize the judgement whether acted to disconnecting switch, improve disconnecting switch movement reliability.
Description
Technical field
The present invention relates to technical field of electricity, more particularly to a kind of synchronism detection method and device of disconnecting switch.
Background technique
Disconnecting switch is the common high voltage protective equipment in electric locomotive, main function be distribute rationally it is various on circuit
The operating condition of high-tension apparatus.Such as when the roof high-tension apparatus of electric locomotive breaks down, disconnecting switch can be bright by failure
Aobvious isolation, so that electric locomotive be made to can continue to run.With the development of the high-voltage electrical equipment in electric locomotive, to keeping apart
Pass point/feed motion accuracy and reliability requires higher and higher.
In the prior art, electric locomotive group divides/switching signal only in accordance with what the auxiliary contact of the disconnecting switch received was fed back,
Detection and isolation switch divides/feed motion.Inventor study the present invention during find, this detection and isolation switch motion
Mode there are the following problems: when the main contact of disconnecting switch it is not operating in place when, electric locomotive has still thought disconnecting switch
Execution, this undoubtedly can bring major hidden danger to the safe operation of electric locomotive.
Therefore, a kind of side that the synchronism for capableing of the main contact to disconnecting switch and auxiliary contact movement is detected is needed
Case.
Summary of the invention
In order to solve the above technical problems, the embodiment of the invention provides the synchronism detection methods and dress of a kind of disconnecting switch
It sets, realizes the accurate detection to disconnecting switch movement synchronism, technical solution is as follows:
The application provides a kind of synchronism detection method of disconnecting switch, and the disconnecting switch includes main contact and auxiliary touching
Head, which comprises
The first moment and the main contact that the auxiliary contact is switched to the second state by first state are acquired by described
First state is switched to the second moment of second state；
Wherein, the first state is different from second state, and the first state is in an open state or closed state,
Second state is in an open state or closed state；
It is synchronous to judge that the main contact is acted with the auxiliary contact according to first moment and second moment
Property.
Preferably, the synchronism of the disconnecting switch is judged according to first moment and second moment, comprising:
Calculate the absolute value of the difference at first moment Yu second moment；
Compare whether the absolute value is less than preset threshold, if so, determining the main contact and the auxiliary contact
Switching action is synchronous.
Preferably, the auxiliary contact include the first auxiliary contact and the second auxiliary contact, acquire the auxiliary contact by
First state is switched to the first moment of the second state, comprising:
At the time of acquiring first auxiliary contact and be switched to second state by the first state, and by the moment
As the first moment；Or,
At the time of acquiring second auxiliary contact and be switched to second state by the first state, and by the moment
As the first moment.
Preferably, the second moment that the main contact is switched to second state by the first state is acquired, comprising:
Judge the main contact by the first state be switched to second state operating space area whether
In threshold range, the area of the operating space is the area of opened areas or the area of enclosed region；
If so, acquisition current time is second moment.
Preferably, the threshold value includes:
When the main contact is switched to the closed state by the opening state, the threshold value is the face of opened areas
Long-pending 80%.
The application provides a kind of synchronism detection device of disconnecting switch, and the disconnecting switch includes main contact and auxiliary touching
Head, described device include:
First moment acquisition unit, when being switched to the first of the second state by first state for acquiring the auxiliary contact
It carves；
Second moment acquisition unit is switched to second state by the first state for acquiring the main contact
Second moment；
Wherein, the first state is different from second state, and the first state is in an open state or closed state,
Second state is in an open state or closed state；
Synchronism judging unit judges the main contact and the auxiliary according to first moment and second moment
The synchronism of contact action.
Preferably, the synchronism judging unit, comprising:
Computing unit, for calculating the absolute value of the difference at first moment Yu second moment；
Comparing unit, for the absolute value to be compared with preset threshold；
Determination unit, for determining the main contact and the auxiliary when the absolute value is less than the preset threshold
The switching action of contact is synchronous.
Preferably, the auxiliary contact includes the first auxiliary contact and the second auxiliary contact, and the first moment acquisition is single
Member, comprising:
First acquisition unit is switched to second state by the first state for acquiring first auxiliary contact
At the time of, and using the moment as the first moment；Or,
Second acquisition unit is switched to second state by the first state for acquiring second auxiliary contact
At the time of, and using the moment as the first moment.
Preferably, the second moment acquisition unit, comprising:
Judging unit is switched to the operating space of second state for judging the main contact by the first state
Area whether in threshold range, the area of the operating space is the area of opened areas or the area of enclosed region；
Third acquisition unit, for when the area of the operating space of the main contact is in threshold range, acquisition to be current
Moment is second moment.
Preferably, the threshold value includes:
When the main contact is switched to the closed state by the opening state, the threshold value is the face of opened areas
Long-pending 80%.
Technical solution provided by the embodiment of the present invention, acquisition auxiliary contact are switched to the of the second state by first state
One moment and main contact are switched to the second moment of the second state by first state, are judged according to the first moment and the second moment
The synchronism of main contact and auxiliary contact movement.Due to the application scheme by the switching action moment of main contact as judgement
The reference factor of the synchronism of disconnecting switch, so, the scheme of the application can be realized accurately to whether disconnecting switch acts
Judgement, improve disconnecting switch movement reliability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is a kind of a kind of process signal of the synchronism detection method of disconnecting switch provided by the embodiment of the present invention
Figure；
Fig. 2 is a kind of another process signal of the synchronism detection method of disconnecting switch provided by the embodiment of the present invention
Figure；
Fig. 3 is a kind of a kind of structural representation of the synchronism detection device of disconnecting switch provided by the embodiment of the present invention
Figure；
Fig. 4 is a kind of another structural representation of the synchronism detection device of disconnecting switch provided by the embodiment of the present invention
Figure；
Fig. 5 is a kind of schematic diagram of the synchronism detection device of disconnecting switch provided by the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Description and claims of this specification and the term " first " in above-mentioned attached drawing, " second " are for distinguishing class
As object, without being used to describe a particular order or precedence order.It should be understood that the data used in this way are in appropriate situation
Under can be interchanged.In addition, term " includes " and " having " and their any deformation, it is intended that cover non-exclusive packet
Contain, for example, what the process, method, system, product or equipment for containing a series of steps or units were not necessarily limited to be clearly listed
Those step or units, but may include be not clearly listed or it is intrinsic for these process, methods, product or equipment
Other step or units.
The embodiment of the present invention provides a kind of synchronism detection method and device of disconnecting switch, realizes to disconnecting switch
The detection of main contact and the synchronism of auxiliary contact movement, further improves the reliability of disconnecting switch movement.
Referring to Fig. 1, Fig. 1 is a kind of realization stream of the synchronism detection method of disconnecting switch provided by the embodiments of the present application
The synchronism detection method of Cheng Tu, the disconnecting switch includes:
Step S11, the auxiliary contact for acquiring disconnecting switch is switched to the first moment of the second state by first state, and every
The main contact for leaving pass is switched to the second moment of the second state by first state.
First state is different from the second state, and first state is in an open state or closed state, and the second state is open shape
State or closed state.
Disconnecting switch in the present embodiment includes main contact and auxiliary contact, wherein when main contact and auxiliary contact are all located
Show that disconnecting switch is in "on" position when closed state, when any contact in main contact and auxiliary contact is in open shape
Show that disconnecting switch is in gate-dividing state when state.
Step S12, to judge that the main contact is acted with the auxiliary contact according to the first moment and the second moment synchronous
Property.
Technical solution provided by the present embodiment, when acquisition auxiliary contact is switched to the first of the second state by first state
Quarter and main contact are switched to the second moment of the second state by first state, judge main touching according to the first moment and the second moment
The synchronism of head and auxiliary contact movement.Due to the synchronism for switching the switching action moment of main contact as detection and isolation
Reference factor, so, the scheme of the present embodiment can accurately realize the judgement whether acted to disconnecting switch, improve every
Reliability from switch motion.
Referring to Fig. 2, Fig. 2 is that the another of the synchronism detection method of disconnecting switch provided by the embodiments of the present application is realized
The synchronism detection method of flow chart, the disconnecting switch includes:
Step S21, the auxiliary contact for acquiring disconnecting switch is switched to the first moment of the second state by first state.
Wherein, the first state is different from second state, and the first state is in an open state or closed state,
Second state is in an open state or closed state.
Disconnecting switch in the present embodiment includes main contact and auxiliary contact, it is contemplated that the transmission of signal has irreversible
Property, auxiliary contact includes the first auxiliary contact and the second auxiliary contact again, i.e., disconnecting switch is by "on" position to gate-dividing state
And in the case of gate-dividing state to two kinds of "on" position, used auxiliary contact is different.
Correspondingly, the auxiliary contact of acquisition disconnecting switch is switched to the first moment of the second state by first state, comprising:
At the time of acquiring the first auxiliary contact and be switched to the second state by first state, and when using the moment as first
It carves；Or,
At the time of acquiring the second auxiliary contact and be switched to the second state by first state, and when using the moment as first
It carves.
Step S22, judge main contact by first state be switched to the second state operating space area whether in threshold value
In range.
The area of operating space is the area of opened areas or the area of enclosed region, e.g., when disconnecting switch is by separating brake shape
When state is to "on" position, the area of operating space is the plug-in strip of main contact and the closure conductive area of reed, when disconnecting switch by
When "on" position is to gate-dividing state, the area of operating space is the plug-in strip of main contact and the opening conductive area of reed.
It is also different to the setting of threshold value according to the difference of main contact switching action in the present embodiment, specifically, when main touching
When head is switched to closed state by opening state, threshold value is the 80% of the area of opened areas.
Step S23, when judge main contact by first state be switched to the second state operating space area in threshold value model
When enclosing interior, then acquiring current time was the second moment.
Step S24, when judge main contact by first state be switched to the second state operating space area not in threshold value
When in range, determination judges whether the time exceeds preset time to what main contact acted, if so, showing fault isolating switch, ties
Otherwise line journey returns to step 22；
Step S25, the absolute value of the difference at first moment and second moment is calculated.
Step S26, compare whether absolute value is less than preset threshold.
Step S27, when absolute value is less than preset threshold, it is determined that main contact is synchronous with the switching action of auxiliary contact；
Step S28, when absolute value is less than preset threshold, it is determined that main contact is different from the switching action of auxiliary contact
Step.
It should be noted that do not limit step S21 and step S22 in the present embodiment had executed sequence and step S21 both
It can execute before step S22 or execute after step s 22, certainly, the two also may be performed simultaneously.
Technical solution provided by the present embodiment, when acquisition auxiliary contact is switched to the first of the second state by first state
It carves and main contact is switched to the second moment of the second state by first state, and by the absolute of the first moment and the second time difference
Value is compared with preset threshold, with determine disconnecting switch movement synchronism, i.e., the embodiment of the present application by main contact with it is auxiliary
Contact action time instant difference is helped to judge the synchronism of main contact and auxiliary contact movement.Due to by the switching action of main contact
The reference factor for the synchronism that moment switchs as detection and isolation, so, the scheme of the present embodiment can be realized accurately pair
The judgement whether disconnecting switch acts improves the reliability of disconnecting switch movement.
The synchronism detection device of disconnecting switch provided by the embodiments of the present application is described below, it is described below every
The synchronism detection device for leaving pass can correspond to each other reference with the synchronism detection method of above-described disconnecting switch.
Referring to Fig. 3, Fig. 3 shows for a kind of structure of the synchronism detection device of disconnecting switch disclosed in the embodiment of the present application
It is intended to, comprising:
First moment acquisition unit 31, the auxiliary contact for acquiring disconnecting switch are switched to the second state by first state
The first moment；
Second moment acquisition unit 32, the main contact for acquiring disconnecting switch are switched to described by the first state
Second moment of two-state；
Wherein, first state is different from the second state, and first state is in an open state or closed state, and the second state is to beat
Open state or closed state.
Synchronism judging unit 33 judges what the main contact and auxiliary contact acted according to the first moment and the second moment
Synchronism.
The synchronism detection device of disconnecting switch provided by the present embodiment, acquisition auxiliary contact are switched to by first state
First moment of the second state and main contact are switched to the second moment of the second state by first state, according to the first moment with
Second moment judged the synchronism of main contact and auxiliary contact movement.Due to by the switching action moment of main contact as judgement
The reference factor of the synchronism of disconnecting switch, so, the scheme of the present embodiment can be realized accurately to whether disconnecting switch is moved
The judgement of work improves the reliability of disconnecting switch movement.
Referring to Fig. 4, Fig. 4 is another structure of the synchronism detection device of disconnecting switch provided by the embodiments of the present application
Schematic diagram, comprising:
First moment acquisition unit 41, the auxiliary contact for acquiring disconnecting switch are switched to the second state by first state
The first moment；
First state is different from the second state, and first state is in an open state or closed state, and the second state is open shape
State or closed state.
Judging unit 42, the main contact for detection and isolation switch are switched to the operating space of the second state by first state
Area whether in threshold range, the area of the operating space is the area of opened areas or the area of enclosed region；
Third acquisition unit 43, for when the area of the operating space of the main contact is in threshold range, acquisition to be worked as
The preceding moment was the second moment.
It is also different to the setting of threshold value according to the difference of main contact switching action in the present embodiment, specifically, when main touching
When head is switched to closed state by opening state, threshold value is the 80% of the area of opened areas.
Time judging unit 44, for when judging that main contact is switched to by first state the face of the operating space of the second state
When product is not in threshold range, determination judges whether the time exceeds preset time to what main contact acted, if so, showing to keep apart
Failure is closed, process is terminated, otherwise, returns to step the main contact of the detection and isolation switch in judging unit 42 by first state
Be switched to the operating space of the second state area whether the step in threshold range；
Computing unit 45, for calculating the absolute value of the difference at the first moment Yu the second moment；
Comparing unit 46, for absolute value to be compared with preset threshold；
Determination unit 47, for determining the switching action of main contact and auxiliary contact when absolute value is less than preset threshold
It is synchronous.
The synchronism detection device of disconnecting switch provided by the present embodiment, acquisition auxiliary contact are switched to by first state
First moment of the second state and main contact are switched to the second moment of the second state by first state, and by the first moment with
Second moment absolute value of the difference is compared with preset threshold, to determine that the synchronism of disconnecting switch movement, i.e. the application are implemented
Example acts time instant difference by main contact and auxiliary contact to judge the synchronism of main contact and auxiliary contact movement.Due to inciting somebody to action
The reference factor for the synchronism that the switching action moment of main contact switchs as detection and isolation, so, the scheme of the present embodiment
The judgement whether acted to disconnecting switch can be accurately realized, the reliability of disconnecting switch movement is improved.
Referring to Fig. 5, Fig. 5 is the schematic diagram of the synchronism detection device of disconnecting switch provided by the embodiments of the present application, packet
It includes:
The second auxiliary contact 52, the main contact 53 of first auxiliary contact 51 of disconnecting switch, disconnecting switch, sensing device
54, digital electronic stopwatch 55, signal cable (not shown)；
Main contact 53 is connected by signal cable 56 with digital electronic stopwatch 55；
First auxiliary contact 51 is connected by signal cable with digital electronic stopclock 55 respectively with the second auxiliary contact 52；
(the first auxiliary contact 51 or the second is auxiliary for the record isolated switch main contact head 53 of digital electronic stopwatch 55 and auxiliary contact
Help contact 52) movement when at the time of, and calculate the time difference.
It is directed to disconnecting switch individually below by gate-dividing state to "on" position and disconnecting switch by "on" position to separating brake shape
The control principle of Fig. 5 is introduced in two processes of state.
When disconnecting switch by gate-dividing state to "on" position when, the signal M-N of the first auxiliary contact feedback passes through auxiliary connection
Lock is transmitted to digital electronic stopwatch, and the signal S of main contact feedback is transmitted to digital electronic stopwatch by sensing device, twice
It is recorded and calculated at the time of the signal of feedback by stopwatch, obtains the time difference of feedback signal twice, interval time is shorter, synchronous
Property is better.
When disconnecting switch is by closing a floodgate to during separating brake, the signal R-P of the second auxiliary contact feedback is passed by auxiliary interlock apparatus
It is delivered to digital electronic stopwatch, the signal E of main contact feedback is transmitted to digital electronic stopwatch by allodynia device, feeds back twice
Signal at the time of recorded and calculated by stopwatch, obtain the time difference of feedback signal twice, interval time is shorter, and synchronism is got over
It is good.
For device or system embodiments, since it essentially corresponds to embodiment of the method, thus related place referring to
The part of embodiment of the method illustrates.Device or system embodiment described above is only schematical, wherein described
Unit may or may not be physically separated as illustrated by the separation member, and component shown as a unit can be with
It is or may not be physical unit, it can it is in one place, or may be distributed over multiple network units.It can
It is achieved the purpose of the solution of this embodiment with selecting some or all of the modules therein according to the actual needs.This field is common
Technical staff can understand and implement without creative efforts.
In several embodiments provided by the present invention, it should be understood that disclosed system, device and method are not having
It has more than in spirit and scope, can realize in other way.Current embodiment is a kind of demonstration
Example, should not be taken as limiting, given particular content should in no way limit the purpose of the application.For example, the unit or
The division of subelement, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple lists
First or multiple subelements combine.In addition, multiple units can with or component may be combined or can be integrated into another and be
System, or some features can be ignored or not executed.
In addition, described system, the schematic diagram of device and method and different embodiments, without departing from scope of the present application
It is interior, it can be with other systems, module, techniques or methods combination or integrated.Another point, shown or discussed mutual coupling
It closes or direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit can be with
It is electrically mechanical or other forms.
The above is only a specific embodiment of the invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of synchronism detection method of disconnecting switch, which is characterized in that the disconnecting switch includes main contact and auxiliary touching
Head, which comprises
The first moment and the main contact that the auxiliary contact is switched to the second state by first state are acquired by described first
State is switched to the second moment of second state；
Wherein, the first state is different from second state, and the first state is in an open state or closed state, described
Second state is in an open state or closed state；
The synchronism of the main contact and auxiliary contact movement is judged according to first moment and second moment；
Acquire the second moment that the main contact is switched to second state by the first state, comprising:
Judge the main contact by the first state be switched to second state operating space area whether in threshold value
In range, the area of the operating space is the area of opened areas or the area of enclosed region, wherein when the disconnecting switch
When by gate-dividing state to "on" position, the area of the operating space is the plug-in strip of the main contact and the closure conducting surface of reed
Product, when the disconnecting switch arrives gate-dividing state by "on" position, the area of the operating space for the main contact plug-in strip
With the opening conductive area of reed；
If so, acquisition current time is second moment.
2. the method according to claim 1, wherein judging institute according to first moment and second moment
State the synchronism of disconnecting switch, comprising:
Calculate the absolute value of the difference at first moment Yu second moment；
Compare whether the absolute value is less than preset threshold, if so, determining the switching of the main contact and the auxiliary contact
Movement synchronizes.
3. the method according to claim 1, wherein the auxiliary contact includes that the first auxiliary contact and second are auxiliary
Contact is helped, the first moment that the auxiliary contact is switched to the second state by first state is acquired, comprising:
At the time of acquiring first auxiliary contact and be switched to second state by the first state, and using the moment as
First moment；Or,
At the time of acquiring second auxiliary contact and be switched to second state by the first state, and using the moment as
First moment.
4. the method according to claim 1, wherein the threshold value includes:
When the main contact is switched to the closed state by the opening state, the threshold value is the area of opened areas
80%.
5. a kind of synchronism detection device of disconnecting switch, which is characterized in that the disconnecting switch includes main contact and auxiliary touching
Head, described device include:
First moment acquisition unit is switched to the first moment of the second state for acquiring the auxiliary contact by first state；
Second moment acquisition unit is switched to the second of second state by the first state for acquiring the main contact
Moment；
Synchronism judging unit judges the main contact and the auxiliary contact according to first moment and second moment
The synchronism of movement；
The second moment acquisition unit, comprising:
Judging unit is switched to the face of the operating space of second state for judging the main contact by the first state
Whether in threshold range, the area of the operating space is the area of opened areas or the area of enclosed region to product, wherein when
The disconnecting switch by gate-dividing state to "on" position when, the area of the operating space is the plug-in strip and reed of the main contact
Closure conductive area, when the disconnecting switch by "on" position to gate-dividing state when, the area of the operating space is described
The plug-in strip of main contact and the opening conductive area of reed；
Third acquisition unit, for acquiring current time when the area of the operating space of the main contact is in threshold range
For second moment.
6. device according to claim 5, which is characterized in that the synchronism judging unit, comprising:
Computing unit, for calculating the absolute value of the difference at first moment Yu second moment；
Comparing unit, for the absolute value to be compared with preset threshold；
Determination unit, for determining the main contact and the auxiliary contact when the absolute value is less than the preset threshold
Switching action it is synchronous.
7. device according to claim 5, which is characterized in that the auxiliary contact includes that the first auxiliary contact and second are auxiliary
Help contact, the first moment acquisition unit, comprising:
First acquisition unit, for acquire first auxiliary contact by the first state be switched to second state when
It carves, and using the moment as the first moment；Or,
Second acquisition unit, for acquire second auxiliary contact by the first state be switched to second state when
It carves, and using the moment as the first moment.
8. device according to claim 5, which is characterized in that the threshold value includes:
When the main contact is switched to the closed state by the opening state, the threshold value is the area of opened areas
80%.
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| CN106650787A (en) * | 2016-11-16 | 2017-05-10 | 合肥普望电子有限责任公司 | Method for automatically judging faults of disconnecting switches |
| CN111487529B (en) * | 2020-06-01 | 2021-05-04 | 泉州睿郎机电技术有限公司 | Method and device for detecting synchronism of contacts of dual-power transfer switch |
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| CN103604544A (en) * | 2013-11-30 | 2014-02-26 | 河北工业大学 | Device and method for dynamic testing of contact pressure of contact terminal of alternating-current contactor |
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| Publication number | Publication date |
|---|---|
| CN105954020A (en) | 2016-09-21 |
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