CN105954020A - Method and device for detecting synchronism of disconnecting switch - Google Patents
Method and device for detecting synchronism of disconnecting switch Download PDFInfo
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- CN105954020A CN105954020A CN201610377783.4A CN201610377783A CN105954020A CN 105954020 A CN105954020 A CN 105954020A CN 201610377783 A CN201610377783 A CN 201610377783A CN 105954020 A CN105954020 A CN 105954020A
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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 method and device for detecting the synchronism of a disconnecting switch, and the disconnecting switch comprises a main contact and an auxiliary contact. The method comprises the steps: collecting a first moment when the auxiliary contact is switched to a second state from a first state, and a second moment when the main contact is switched to a second state from a first state; and judging the synchronism of the operation of the main contact and the auxiliary contact according to the first and second moments. According to the scheme of the invention, the switching operation moment of the main contact serves as a reference factor for judging the synchronism of the disconnecting switch, so the method can accurately make the judgment whether the disconnecting switch operates or not, and improves the operation reliability of the disconnecting switch.
Description
Technical field
The present invention relates to technical field of electricity, particularly relate to the synchronicity detection method of a kind of disconnecting switch
And device.
Background technology
Disconnecting switch is the conventional high voltage protective equipment in electric locomotive, and its Main Function is to distribute electricity rationally
The operating condition of various high pressure equipmentes on road.As when the roof high pressure equipment of electric locomotive breaks down,
Fault can substantially be isolated by disconnecting switch, so that electric locomotive can continue to run.Along with electric power machine
The development of the high-voltage electrical equipment in car, divides/accuracy of feed motion and reliability requirement to disconnecting switch
More and more higher.
In prior art, electric locomotive group only in accordance with the disconnecting switch received auxiliary contact feed back point/close
Lock signal, it is judged that disconnecting switch point/feed motion.Inventor finds during the research present invention,
There are the following problems for the mode of this detection and isolation switch motion: arrives when the main contact of disconnecting switch is not operating
During position, disconnecting switch execution is still thought in electric locomotive, and this can give the safety of electric locomotive undoubtedly
Operation brings major hidden danger.
Therefore, need badly and a kind of the synchronicity of the main contact of disconnecting switch with auxiliary contact action can be carried out
The scheme of detection.
Summary of the invention
For solving above-mentioned technical problem, embodiments provide the synchronicity detection of a kind of disconnecting switch
Method and device, it is achieved the accurate detection to disconnecting switch action synchronicity, technical scheme is as follows:
The application provides the synchronicity detection method of a kind of disconnecting switch, and described disconnecting switch includes main contact
And auxiliary contact, described method includes:
Gather described auxiliary contact and switched to the first moment of the second state by the first state, and described master touches
Head is switched to the second moment of described second state by described first state；
Wherein, described first state is different from described second state, described first state be open mode or
Closure state, described second state is open mode or closure state；
Described main contact and described auxiliary contact action is judged according to described first moment and described second moment
Synchronicity.
Preferably, judge the synchronicity of described disconnecting switch according to described first moment and described second moment,
Including:
Calculate the absolute value in described first moment and the difference in described second moment；
Relatively whether described absolute value is less than predetermined threshold value, if, it is determined that described main contact is auxiliary with described
The switching action helping contact synchronizes.
Preferably, described auxiliary contact includes the first auxiliary contact and the second auxiliary contact, gathers described auxiliary
Contact is helped to be switched to the first moment of the second state by the first state, including:
Gather described first auxiliary contact and switched to the moment of described second state by described first state, and
Using this moment as the first moment；Or,
Gather described second auxiliary contact and switched to the moment of described second state by described first state, and
Using this moment as the first moment.
Preferably, gather described main contact switched to by described first state described second state second time
Carve, including:
Judge that described main contact is switched to the area of the operating space of described second state by described first state
Whether in threshold range, the area of described operating space is area or the face of enclosed region of opened areas
Long-pending；
The most then gathering current time is described second moment.
Preferably, described threshold value includes:
When described main contact is switched to described closure state by described open mode, described threshold value is for opening
The 80% of the area in region.
The application provides the synchronicity detection device of a kind of disconnecting switch, and described disconnecting switch includes main contact
And auxiliary contact, described device includes:
First moment collecting unit, is used for gathering described auxiliary contact and is switched to the second state by the first state
The first moment；
Second moment collecting unit, is used for gathering described main contact and is switched to described by described first state
Second moment of two-state；
Wherein, described first state is different from described second state, described first state be open mode or
Closure state, described second state is open mode or closure state；
Synchronicity judging unit, according to described first moment and described second moment judge described main contact and
The synchronicity of described auxiliary contact action.
Preferably, described synchronicity judging unit, including:
Computing unit, for calculating the absolute value in described first moment and the difference in described second moment；
Comparing unit, for comparing described absolute value with predetermined threshold value；
Determine unit, for when described absolute value less than described predetermined threshold value time, determine described main contact with
The switching action of described auxiliary contact synchronizes.
Preferably, described auxiliary contact includes the first auxiliary contact and the second auxiliary contact, when described first
Carve collecting unit, including:
First collecting unit, is used for gathering described first auxiliary contact and is switched to by described first state described
The moment of the second state, and using this moment as the first moment；Or,
Second collecting unit, is used for gathering described second auxiliary contact and is switched to by described first state described
The moment of the second state, and using this moment as the first moment.
Preferably, described second moment collecting unit, including:
Judging unit, for judging that described main contact is switched to described second state by described first state
Whether the area of operating space is in threshold range, and the area of described operating space is the area of opened areas
Or the area of enclosed region；
3rd collecting unit, for when the area of operating space of described main contact is in threshold range,
Gathering current time is described second moment.
Preferably, described threshold value includes:
When described main contact is switched to described closure state by described open mode, described threshold value is for opening
The 80% of the area in region.
The technical scheme that the embodiment of the present invention is provided, gathers auxiliary contact and is switched to second by the first state
First moment of state, and main contact switches to the second moment of the second state by the first state, according to
One moment and the second moment judge the synchronicity of main contact and auxiliary contact action.Scheme due to the application
By the reference factor of the synchronicity that the switching action moment of main contact switchs as detection and isolation, so,
The scheme of the application can realize the judgement to disconnecting switch whether action accurately, improves disconnecting switch
The reliability of action.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
A kind of stream of the synchronicity detection method of a kind of disconnecting switch that Fig. 1 is provided by the embodiment of the present invention
Journey schematic diagram；
The another kind of the synchronicity detection method of a kind of disconnecting switch that Fig. 2 is provided by the embodiment of the present invention
Schematic flow sheet；
A kind of knot of the synchronicity detection device of a kind of disconnecting switch that Fig. 3 is provided by the embodiment of the present invention
Structure schematic diagram；
The another kind of the synchronicity detection device of a kind of disconnecting switch that Fig. 4 is provided by the embodiment of the present invention
Structural representation；
The schematic diagram of the synchronicity detection device of a kind of disconnecting switch that Fig. 5 is provided by the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and not
It it is whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under creative work premise, broadly falls into the scope of protection of the invention.
Term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second " are
For distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that this
The data that sample uses can be exchanged in the appropriate case.Additionally, term " includes " and " having " and
Their any deformation, it is intended that cover non-exclusive comprising, such as, contain series of steps or
The process of unit, method, system, product or equipment are not necessarily limited to those steps or the list clearly listed
Unit, but can include that the most clearly list or intrinsic for these processes, method, product or equipment
Other step or unit.
The embodiment of the present invention provides the synchronicity detection method of a kind of disconnecting switch and device, it is achieved that to every
Leave the main contact of pass and the detection of the synchronicity of auxiliary contact action, further increase disconnecting switch and move
The reliability made.
Refer to the disconnecting switch that Fig. 1, Fig. 1 provide for the embodiment of the present application synchronicity detection method one
Planting flowchart, the synchronicity detection method of described disconnecting switch includes:
When step S11, the auxiliary contact of collection disconnecting switch are switched to the first of the second state by the first state
Carve, and the main contact of disconnecting switch is switched to the second moment of the second state by the first state.
First state is different from the second state, and the first state is open mode or closure state, the second state
For open mode or closure state.
Disconnecting switch in the present embodiment includes main contact and auxiliary contact, wherein, when main contact and auxiliary
Show that disconnecting switch is in "on" position when contact is all in closed mode, when in main contact and auxiliary contact
Arbitrary contact show that disconnecting switch is in gate-dividing state when being in open mode.
Step S12, judge described main contact and described auxiliary contact action according to the first moment and the second moment
Synchronicity.
The technical scheme that the present embodiment is provided, gathers auxiliary contact and is switched to the second state by the first state
The first moment, and main contact switches to the second moment of the second state by the first state, during according to first
Quarter and the second moment judge the synchronicity of main contact and auxiliary contact action.Owing to the switching of main contact is moved
Make the reference factor of the synchronicity that the moment switchs as detection and isolation, so, the scheme energy of the present embodiment
Enough judgements realized accurately disconnecting switch whether action, improve the reliability of disconnecting switch action.
Refer to synchronicity detection method another of the disconnecting switch that Fig. 2, Fig. 2 provide for the embodiment of the present application
A kind of flowchart, the synchronicity detection method of described disconnecting switch includes:
When step S21, the auxiliary contact of collection disconnecting switch are switched to the first of the second state by the first state
Carve.
Wherein, described first state is different from described second state, described first state be open mode or
Closure state, described second state is open mode or closure state.
Disconnecting switch in the present embodiment includes main contact and auxiliary contact, it is contemplated that the transmission of signal has
Irreversibility, auxiliary contact include again the first auxiliary contact and the second auxiliary contact, i.e. disconnecting switch by
"on" position is in the case of gate-dividing state and gate-dividing state to the two of "on" position kinds, and the auxiliary used is touched
Head is different.
Accordingly, gather disconnecting switch auxiliary contact switched to by the first state the second state first time
Carve, including:
Gather the first auxiliary contact and switched to the moment of the second state by the first state, and using this moment as
First moment；Or,
Gather the second auxiliary contact and switched to the moment of the second state by the first state, and using this moment as
First moment.
Step S22, judge whether main contact is switched to the area of the operating space of the second state by the first state
In threshold range.
The area of operating space is area or the area of enclosed region of opened areas, e.g., works as disconnecting switch
During by gate-dividing state to "on" position, the area of operating space is the plug-in strip of main contact and the Guan Bi of reed is led
Electricity area, when disconnecting switch is by "on" position to gate-dividing state, the area of operating space is main contact
Plug-in strip and reed open conductive area.
In the present embodiment, according to the difference of main contact switching action, the setting to threshold value is the most different, specifically
Ground, when main contact is switched to closure state by open mode, threshold value is the 80% of the area of opened areas.
Step S23, when judging that main contact is switched to the area of the operating space of the second state to exist by the first state
Time in threshold range, then gathering current time was the second moment.
Step S24, when judging that main contact is switched to the area of the operating space of the second state not by the first state
Time in threshold range, whether the time that judges to main contact action that determines exceeds Preset Time, if so,
Show fault isolating switch, terminate flow process, otherwise, return and perform step 22；
Step S25, calculate the absolute value of the difference in described first moment and described second moment.
Step S26, compare absolute value whether less than predetermined threshold value.
Step S27, when absolute value is less than predetermined threshold value, it is determined that the switching of main contact and auxiliary contact is moved
Synchronize；
Step S28, when absolute value is less than predetermined threshold value, it is determined that the switching of main contact and auxiliary contact is moved
Make asynchronous.
It should be noted that the present embodiment does not limit the execution sequence of step S21 and step S22,
And step S21 both can perform to perform after step s 22 before step S22, certainly,
The two can also perform simultaneously.
The technical scheme that the present embodiment is provided, gathers auxiliary contact and is switched to the second state by the first state
The first moment, and main contact switches to the second moment of the second state by the first state, and during by first
Carve the absolute value with the second time difference to compare with predetermined threshold value, to determine the synchronization of disconnecting switch action
Property, i.e. the embodiment of the present application by main contact and auxiliary contact action time instant difference judge main contact with
The synchronicity of auxiliary contact action.Owing to the switching action moment of main contact is switched as detection and isolation
The reference factor of synchronicity, so, the scheme of the present embodiment can realize accurately to disconnecting switch be
The judgement of no action, improves the reliability of disconnecting switch action.
Below the synchronicity detection device of the disconnecting switch that the embodiment of the present application provides is described, hereafter
The synchronicity detection device of the disconnecting switch described and the synchronicity detection method of above-described disconnecting switch
Can be mutually to should refer to.
Refer to the synchronicity detection device that Fig. 3, Fig. 3 are a kind of disconnecting switch disclosed in the embodiment of the present application
Structural representation, including:
First moment collecting unit 31, is switched to by the first state for gathering the auxiliary contact of disconnecting switch
First moment of the second state；
Second moment collecting unit 32, for gathering the main contact of disconnecting switch by described first state switching
The second moment for described second state；
Wherein, the first state is different from the second state, and the first state is open mode or closure state, the
Two-state is open mode or closure state.
According to the first moment and the second moment, synchronicity judging unit 33, judges that described main contact touches with auxiliary
The synchronicity of head action.
The synchronicity detection device of the disconnecting switch that the present embodiment is provided, gathers auxiliary contact by the first shape
State switches to the first moment of the second state, and main contact is switched to the second of the second state by the first state
In the moment, judge the synchronicity of main contact and auxiliary contact action according to the first moment and the second moment.Due to
By the reference factor of the synchronicity that the switching action moment of main contact switchs as detection and isolation, so,
The scheme of the present embodiment can realize the judgement to disconnecting switch whether action accurately, improves and keeps apart
The reliability of pass action.
The synchronicity referring to the disconnecting switch that Fig. 4, Fig. 4 provide for the embodiment of the present application detects the another of device
A kind of structural representation, including:
First moment collecting unit 41, is switched to by the first state for gathering the auxiliary contact of disconnecting switch
First moment of the second state；
First state is different from the second state, and the first state is open mode or closure state, the second state
For open mode or closure state.
Judging unit 42, the main contact for detection and isolation switch is switched to the second state by the first state
Whether the area of operating space is in threshold range, and the area of described operating space is the area of opened areas
Or the area of enclosed region；
3rd collecting unit 43, for when the area of operating space of described main contact is in threshold range,
Gathering current time was the second moment.
In the present embodiment, according to the difference of main contact switching action, the setting to threshold value is the most different, specifically
Ground, when main contact is switched to closure state by open mode, threshold value is the 80% of the area of opened areas.
Time judging unit 44, for when judging that main contact is switched to the action of the second state by the first state
When the area in region is not in threshold range, whether the time that judges to main contact action that determines is beyond presetting
Time, if so, show fault isolating switch, terminate flow process, otherwise, return and perform step judging unit
The main contact of the detection and isolation switch in 42 is switched to the area of the operating space of the second state by the first state
The whether step in threshold range；
Computing unit 45, for calculating the absolute value in the first moment and the difference in the second moment；
Comparing unit 46, for comparing absolute value with predetermined threshold value；
Determine unit 47, for when absolute value is less than predetermined threshold value, determine main contact and auxiliary contact
Switching action synchronizes.
The synchronicity detection device of the disconnecting switch that the present embodiment is provided, gathers auxiliary contact by the first shape
State switches to the first moment of the second state, and main contact is switched to the second of the second state by the first state
Moment, and the absolute value in the first moment with the second time difference is compared with predetermined threshold value, with determine every
From the synchronicity of switch motion, i.e. the embodiment of the present application by main contact and auxiliary contact action time instant
Difference judges the synchronicity of main contact and auxiliary contact action.Owing to the switching action moment of main contact is made
For the reference factor of the synchronicity of detection and isolation switch, so, the scheme of the present embodiment can be accurately
Realize the judgement to disconnecting switch whether action, improve the reliability of disconnecting switch action.
The synchronicity referring to the disconnecting switch that Fig. 5, Fig. 5 provide for the embodiment of the present application detects the former of device
Reason figure, including:
First auxiliary contact 51 of disconnecting switch, the second auxiliary contact 52 of disconnecting switch, main contact 53,
Sensing device 54, digital electronic stopwatch 55, signal cable (not shown)；
Main contact 53 is connected with digital electronic stopwatch 55 by signal cable 56；
First auxiliary contact 51 and the second auxiliary contact 52 are respectively by signal cable and digital electronic second
Table 55 is connected；
Digital electronic stopwatch 55 records isolated switch main contact 53 and auxiliary contact (the first auxiliary contact
51 or second auxiliary contact 52) action time moment, and calculate time difference.
Individually below for disconnecting switch by gate-dividing state to "on" position and disconnecting switch by "on" position to
The control principle of Fig. 5 is introduced by two processes of gate-dividing state.
When disconnecting switch is by gate-dividing state to "on" position, the signal M-N of the first auxiliary contact feedback leads to
Crossing auxiliary interlock apparatus and be delivered to digital electronic stopwatch, the signal S of main contact feedback is transmitted by sensing device
To digital electronic stopwatch, the moment of the signal of twice feedback is by stopwatch record and calculates, and obtains twice
The time difference of feedback signal, interval time is the shortest, and synchronicity is the best.
During disconnecting switch is by the separating brake that closes a floodgate, the signal R-P of the second auxiliary contact feedback is by auxiliary
Helping interlocking to be delivered to digital electronic stopwatch, the signal E of main contact feedback is delivered to number by allodynia device
Word formula electronic stopclock, the moment of the signal of twice feedback is by stopwatch record and calculates, and obtains twice feedback
The time difference of signal, interval time is the shortest, and synchronicity is the best.
For device or system embodiment, owing to it essentially corresponds to embodiment of the method, thus relevant
Part sees the part of embodiment of the method and illustrates.Device described above or system embodiment are only
Being schematic, the wherein said unit illustrated as separating component can be or may not be physics
Upper separate, the parts shown as unit can be or may not be physical location, i.e. can position
In a place, or can also be distributed on multiple NE.Can select according to the actual needs
Some or all of module therein realizes the purpose of the present embodiment scheme.Those of ordinary skill in the art
In the case of not paying creative work, i.e. it is appreciated that and implements.
In several embodiments provided by the present invention, it should be understood that disclosed system, device and
Method, in being not above spirit and scope, can realize in other way.Currently
Embodiment be a kind of exemplary example, should not be taken as limit, given particular content should
The purpose of this restriction the application.Such as, described unit or the division of subelement, it is only a kind of logic merit
Can divide, actual can have other dividing mode, the most multiple unit or multiple subelement knot when realizing
Unify.It addition, multiple unit can or assembly can in conjunction with or be desirably integrated into another system,
Or some features can ignore, or do not perform.
It addition, described system, apparatus and method and the schematic diagram of different embodiment, without departing from this
In the range of application, can be with other system, module, techniques or methods combine or integrated.Another point,
Shown or discussed coupling each other or direct-coupling or communication connection can be to be connect by some
Mouthful, device or the INDIRECT COUPLING of unit or communication connection, can be electrical, machinery or other form.
The above is only the detailed description of the invention of the present invention, it is noted that general for the art
For logical technical staff, under the premise without departing from the principles of the invention, it is also possible to make some improvement and profit
Decorations, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. the synchronicity detection method of a disconnecting switch, it is characterised in that described disconnecting switch includes main
Contact and auxiliary contact, described method includes:
Gather described auxiliary contact and switched to the first moment of the second state by the first state, and described master touches
Head is switched to the second moment of described second state by described first state；
Wherein, described first state is different from described second state, described first state be open mode or
Closure state, described second state is open mode or closure state；
Described main contact and described auxiliary contact action is judged according to described first moment and described second moment
Synchronicity.
Method the most according to claim 1, it is characterised in that according to described first moment with described
Second moment judged the synchronicity of described disconnecting switch, including:
Calculate the absolute value in described first moment and the difference in described second moment；
Relatively whether described absolute value is less than predetermined threshold value, if, it is determined that described main contact is auxiliary with described
The switching action helping contact synchronizes.
Method the most according to claim 1, it is characterised in that described auxiliary contact includes that first is auxiliary
Help contact and the second auxiliary contact, gather described auxiliary contact and switched to the of the second state by the first state
One moment, including:
Gather described first auxiliary contact and switched to the moment of described second state by described first state, and
Using this moment as the first moment；Or,
Gather described second auxiliary contact and switched to the moment of described second state by described first state, and
Using this moment as the first moment.
Method the most according to claim 3, it is characterised in that gather described main contact by described
One state switches to the second moment of described second state, including:
Judge that described main contact is switched to the area of the operating space of described second state by described first state
Whether in threshold range, the area of described operating space is area or the face of enclosed region of opened areas
Long-pending；
The most then gathering current time is described second moment.
Method the most according to claim 4, it is characterised in that described threshold value includes:
When described main contact is switched to described closure state by described open mode, described threshold value is for opening
The 80% of the area in region.
6. the synchronicity detection device of a disconnecting switch, it is characterised in that described disconnecting switch includes main
Contact and auxiliary contact, described device includes:
First moment collecting unit, is used for gathering described auxiliary contact and is switched to the second state by the first state
The first moment；
Second moment collecting unit, is used for gathering described main contact and is switched to described by described first state
Second moment of two-state；
Wherein, described first state is different from described second state, described first state be open mode or
Closure state, described second state is open mode or closure state；
Synchronicity judging unit, according to described first moment and described second moment judge described main contact and
The synchronicity of described auxiliary contact action.
Device the most according to claim 6, it is characterised in that described synchronicity judging unit, bag
Include:
Computing unit, for calculating the absolute value in described first moment and the difference in described second moment；
Comparing unit, for comparing described absolute value with predetermined threshold value；
Determine unit, for when described absolute value less than described predetermined threshold value time, determine described main contact with
The switching action of described auxiliary contact synchronizes.
Device the most according to claim 6, it is characterised in that described auxiliary contact includes that first is auxiliary
Help contact and the second auxiliary contact, described first moment collecting unit, including:
First collecting unit, is used for gathering described first auxiliary contact and is switched to by described first state described
The moment of the second state, and using this moment as the first moment；Or,
Second collecting unit, is used for gathering described second auxiliary contact and is switched to by described first state described
The moment of the second state, and using this moment as the first moment.
Device the most according to claim 8, it is characterised in that described second moment collecting unit,
Including:
Judging unit, for judging that described main contact is switched to described second state by described first state
Whether the area of operating space is in threshold range, and the area of described operating space is the area of opened areas
Or the area of enclosed region；
3rd collecting unit, for when the area of operating space of described main contact is in threshold range,
Gathering current time is described second moment.
Device the most according to claim 9, it is characterised in that described threshold value includes:
When described main contact is switched to described closure state by described open mode, described threshold value is for opening
The 80% of the area in region.
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| CN201610377783.4A CN105954020B (en) | 2016-05-31 | 2016-05-31 | The synchronism detection method and device of disconnecting switch |
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| CN201610377783.4A CN105954020B (en) | 2016-05-31 | 2016-05-31 | The synchronism detection method and device of disconnecting switch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113196071A (en) * | 2020-06-01 | 2021-07-30 | 龚柱 | Method and device for detecting synchronism of contacts of dual-power transfer switch |
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| CN113196071A (en) * | 2020-06-01 | 2021-07-30 | 龚柱 | Method and device for detecting synchronism of contacts of dual-power transfer switch |
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| CN105954020B (en) | 2019-05-03 |
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