CN108776301A - The fast switch-dividing calibration equipment of direct current and its method of calibration - Google Patents
The fast switch-dividing calibration equipment of direct current and its method of calibration Download PDFInfo
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- CN108776301A CN108776301A CN201810414489.5A CN201810414489A CN108776301A CN 108776301 A CN108776301 A CN 108776301A CN 201810414489 A CN201810414489 A CN 201810414489A CN 108776301 A CN108776301 A CN 108776301A
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- dividing
- direct current
- fast switch
- current
- switch
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000012795 verification Methods 0.000 claims description 11
- 238000002474 experimental method Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000002596 correlated effect Effects 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention discloses a kind of fast switch-dividing calibration equipments of direct current, including supply unit, starting switch, standard clock signal source, controller circuitry, current detection module and the fast switch-dividing connecting interface of direct current；Supply unit；Standard clock signal source provides standard clock signal；The current signal of the current detection module detection fast switch-dividing of direct current simultaneously uploads controller circuitry；Controller circuitry verifies the performance of the fast switch-dividing of direct current.The invention also discloses the methods of calibration of the fast switch-dividing calibration equipment of the direct current, including initialization and arrange parameter；Connect the fast switch-dividing of direct current；Start to verify；Record current data and time data；It is verified and is shown.The present invention flows through the current signal of the fast switch-dividing of direct current and corresponding clock signal by sampling, can be verified to the fast switch-dividing of direct current, and can be verified simultaneously to the performance and action logic relationship of the fast switch-dividing of multiple direct currents.
Description
Technical field
Present invention relates particularly to a kind of fast switch-dividing calibration equipment of direct current and its methods of calibration.
Background technology
With the development and the improvement of people's living standards of national economy technology, electric energy has become people's production and life
Essential secondary energy sources in work, endless facility is brought to the production and life of people.
The fast switch-dividing of direct current is widely used in the 220V straight-flow systems of substation, carries the weight of DC system protection
Want task.Since the power supply content of transformer station direct current system is more, loop distribution is wide, and often there are many branch in a DC network
Road needs that low-voltage circuit breaker (fast switch-dividing) is arranged to be protected, and tends to separate into three and connect to level Four, this there is soon
The matching problem of selective protection between the how correct type selecting of switch-dividing and upper and lower grade.In recent years, power supply safety reliability is wanted
It asks and steps up, the fast switch-dividing applied in straight-flow system gradually increases, if the upper and lower differential selection of grade and mismate, one
Denier, which breaks down, would be possible to cause DC power supply to bypass the immediate leadership trip event, and transformer station direct current system accident range is caused to expand.
But station personnel are in the fast switch-dividing of examination direct current at present, often only to the base of the fast switch-dividing of direct current
This characteristic carries out empirical inspection and judgement, no associated check instrument thus the characteristic of the fast switch-dividing of direct current can not be examined
Survey, especially the Graded coordination characteristic between the time-current characteristic of the fast switch-dividing of direct current and the fast switch-dividing of the superior and the subordinate's direct current into
Row verification.
Invention content
One of the objects of the present invention is to provide a kind of time-current characteristic that can be to the fast switch-dividing of direct current and the superior and the subordinate
Graded coordination characteristic between the fast switch-dividing of direct current carries out the fast switch-dividing calibration equipment of direct current of fast automatic verification.
The second object of the present invention is to provide a kind of method of calibration of the fast switch-dividing calibration equipment of the direct current.
The fast switch-dividing calibration equipment of this direct current provided by the invention, including supply unit, starting switch, standard time clock letter
Number source, controller circuitry, current detection module and the fast switch-dividing connecting interface of direct current；Supply unit is supplied to the calibration equipment
Electricity；Supply unit, starting switch and the fast switch-dividing connecting interface of direct current are sequentially connected in series；Standard clock signal source and controller circuitry
It connects and standard clock signal is provided；Current detection module is connect with controller circuitry, passes through the fast switch-dividing of direct current for detecting
Connecting interface is connected to the current signal of the fast switch-dividing of direct current of the calibration equipment and uploads controller circuitry；Controller circuitry
For the performance according to the current signal and the fast switch-dividing of standard clock source signal checking direct current of upload.
The fast switch-dividing calibration equipment of the direct current further includes touch screen；Touch screen is connect with controller circuitry, for showing
The running parameter for showing the calibration equipment is also used for user and sends out control instruction to the calibration equipment by touch screen.
The supply unit is DC low-voltage regulated power supply module, AC/DC rectification modules or external transforming plant DC
System power supply.
The starting switch is breaker or D.C. contactor.
The current detection module includes one group of input electric cur- rent measure module and the fast switch-dividing electric current inspection of several groups direct current
Survey module；Input electric cur- rent measure module is connect with starting switch, and the total current signal for detecting input simultaneously uploads controller electricity
Road；The fast switch-dividing current detection module of several groups direct current is connect with the fast switch-dividing connecting interface of direct current respectively, is flowed through for detecting
The current signal of each fast switch-dividing of direct current simultaneously uploads controller circuitry.
The fast switch-dividing connecting interface of the direct current has two groups, and each group of connecting interface separates soon for connecting a direct current
It closes.
The present invention also provides a kind of methods of calibration of the fast switch-dividing calibration equipment of direct current, include the following steps：
S1. calibration equipment power-up initializing；
S2. user is configured the fast switch-dividing calibration equipment of direct current by touch screen；
The fast switch-dividing of direct current to be verified is connected to the fast switch-dividing connecting interface of direct current by S3；
S4. it is closed starting switch, verification starts；
S5. controller circuitry record flows through the current data of the fast switch-dividing of direct current to be verified, and from standard clock signal
Source obtains the time point of the current data of the fast switch-dividing of direct current to be verified；
S6. the data that controller circuitry is obtained according to step S5 verify the fast switch-dividing of direct current to be verified, and will
Check results are exported from touch screen.
The fast switch-dividing calibration equipment of this direct current provided by the invention and its method of calibration flow through direct current by sampling and divide soon
The current signal of switch and corresponding clock signal, so as to be verified to the fast switch-dividing of direct current；In addition, the present invention provides
The fast switch-dividing calibration equipment of this direct current multiple direct currents be provided separate connecting interface soon, multiple direct currents can be separated soon simultaneously
Put capable verification into, and the calibration equipment that user can be through the invention closes the action logic of the fast switch-dividing of the superior and the subordinate's direct current
System is verified；Therefore the present invention can to the time-current characteristic and the fast switch-dividing of the superior and the subordinate's direct current of the fast switch-dividing of direct current it
Between Graded coordination characteristic carry out fast automatic verification.
Description of the drawings
Fig. 1 is the functional block diagram of apparatus of the present invention.
Fig. 2 is a kind of functional block diagram of embodiment of apparatus of the present invention.
Fig. 3 is the method flow diagram of the method for the present invention.
Specific implementation mode
It is the functional block diagram of invention device as shown in Figure 1：The fast switch-dividing calibration equipment of this direct current provided by the invention,
Including supply unit, starting switch, standard clock signal source, controller circuitry, current detection module, the fast switch-dividing connection of direct current
Interface and touch screen；Supply unit is powered to the calibration equipment；Supply unit, starting switch are connected with the fast switch-dividing of direct current and are connect
Mouth is sequentially connected in series；Standard clock signal source connect with controller circuitry and provides standard clock signal；Current detection module and control
Device circuit connection processed, for detecting the fast switch-dividing of direct current for being connected to the calibration equipment by the fast switch-dividing connecting interface of direct current
Current signal and upload controller circuitry；Controller circuitry is used for the current signal according to upload and standard time clock source signal school
Test the performance of the fast switch-dividing of direct current；Touch screen is connect with controller circuitry, the running parameter for showing the calibration equipment,
Control instruction is sent out to the calibration equipment by touch screen for user.
It is illustrated in figure 2 a kind of functional block diagram of embodiment of apparatus of the present invention：From the figure, it can be seen that in the implementation
In example, current detection module includes that one group of input electric cur- rent measure module and several groups (being two groups in the embodiment) direct current separate soon
Close current detection module；Input electric cur- rent measure module is connect with starting switch, and the total current signal for detecting input simultaneously uploads
Controller circuitry；The fast switch-dividing current detection module of two groups of direct currents is connect with the fast switch-dividing connecting interface of direct current respectively, for examining
The current signal of the excessively each fast switch-dividing of direct current of flow measurement simultaneously uploads controller circuitry.
In specific application, when only needing the detection fast switch-dividing of direct current all the way, by the fast switch-dividing of direct current to be verified
Input terminal connects one end of the fast switch-dividing connecting interface J1 of direct current, the output end connecting interface J1 of the fast switch-dividing of direct current to be verified
The other end, the direct short circuit of both ends shorting stub of the fast switch-dividing connecting interface J1 of direct current；K1 is starting switch, can be adopted
With can be by relay or contactor etc. that controller circuitry controls.When starting verification, it is closed starting switch K1, at this time due to line
In road and the electric device such as non-resistance, it is activated the direct short circuit of the fast switch-dividing of switch K1, direct current between the positive and negative anodes of power supply, therefore
The fast switch-dividing of direct current can be disconnected directly at this time, to form protection；During electric on the line and power-off, input electric cur- rent measure
The current signal of module detection power supply output simultaneously uploads controller circuitry, and the fast switch-dividing current detection module of direct current then detection stream
It crosses the current signal of the fast switch-dividing of direct current and uploads controller circuitry, while controller circuitry is from standard clock signal source record line
Road is from the time signal for being power-up to power-off；Controller circuitry, can be to straight according to the clock signal and current detection signal of acquisition
The time-current characteristic for flowing fast switch-dividing is verified.
When needing the verification fast switch-dividing of two groups of direct currents simultaneously, by the input of the fast switch-dividing of the first direct current (such as breaker)
End is connected to one end of the fast switch-dividing connecting interface J1 of direct current, the input terminal connection of the fast switch-dividing of the first direct current (such as breaker)
Input terminal to the other end of the fast switch-dividing connecting interface J1 of direct current, the fast switch-dividing of the second direct current (such as breaker) is connected to directly
One end of fast switch-dividing connecting interface J2 is flowed, the input terminal of the fast switch-dividing of the second direct current (such as breaker) is connected to direct current and divides soon
Switch the other end of connecting interface J2；K1 is starting switch, and the relay that can be controlled by controller circuitry may be used or connect
Tentaculum etc..When verification, it is closed starting switch K1, switch K1, the first direct current is activated between the positive and negative anodes of power supply at this time and separates soon
It closes, the direct short circuit of the fast switch-dividing of the second direct current, therefore two groups of fast switch-dividings of direct current can be disconnected directly at this time, to form protection；
During electric on the line and power-off, the current signal of input electric cur- rent measure module detection power supply output simultaneously uploads controller electricity
Road, and the fast switch-dividing current detection module of direct current then detects the current signal for flowing through two groups of fast switch-dividings of direct current and uploads controller
Circuit, while controller circuitry is from standard clock signal source record circuit from the time signal for being power-up to power-off；Controller circuitry
According to the clock signal and current detection signal of acquisition, the time-current characteristic of the fast switch-dividing of direct current can be verified, together
When user the action logic relationships of two groups of fast switch-dividings of direct current can be judged according to the running order of two groups of fast switch-dividings of direct current
It is verified.
It is illustrated in figure 3 the method flow diagram of the method for the present invention：This fast switch-dividing school of direct current provided by the invention
The method of calibration of experiment device, includes the following steps：
S1. calibration equipment power-up initializing；
S2. user is configured the fast switch-dividing calibration equipment of direct current by touch screen；
The fast switch-dividing of direct current to be verified is connected to the fast switch-dividing connecting interface of direct current by S3；
S4. it is closed starting switch, verification starts；
S5. controller circuitry record flows through the current data of the fast switch-dividing of direct current to be verified, and from standard clock signal
Source obtains the time point of the current data of the fast switch-dividing of direct current to be verified；
S6. the data that controller circuitry is obtained according to step S5 verify the fast switch-dividing of direct current to be verified, and will
Check results are exported from touch screen.
Claims (7)
1. a kind of fast switch-dividing calibration equipment of direct current, it is characterised in that including supply unit, starting switch, standard clock signal
Source, controller circuitry, current detection module and the fast switch-dividing connecting interface of direct current；Supply unit is powered to the calibration equipment；
Supply unit, starting switch and the fast switch-dividing connecting interface of direct current are sequentially connected in series；Standard clock signal source connects with controller circuitry
It connects and standard clock signal is provided；Current detection module is connect with controller circuitry, is separately correlated soon by direct current for detecting
Connection interface is connected to the current signal of the fast switch-dividing of direct current of the calibration equipment and uploads controller circuitry；Controller circuitry is used
In the performance according to the current signal and the fast switch-dividing of standard clock source signal checking direct current of upload.
2. the fast switch-dividing calibration equipment of direct current according to claim 1, it is characterised in that further include touch screen；Touch screen with
Controller circuitry connects, and the running parameter for showing the calibration equipment is also used for user by touch screen to the school
Experiment device sends out control instruction.
3. the fast switch-dividing calibration equipment of direct current according to claim 1, it is characterised in that the supply unit is direct current
Low pressure regulated power supply module or AC/DC rectification modules.
4. the fast switch-dividing calibration equipment of direct current according to claim 1, it is characterised in that the starting switch is open circuit
Device or D.C. contactor.
5. the fast switch-dividing calibration equipment of direct current according to claim 1, it is characterised in that the current detection module packet
Include one group of input electric cur- rent measure module and the fast switch-dividing current detection module of several groups direct current；Input electric cur- rent measure module and startup
Switch connection, for detecting the total current signal inputted and uploading controller circuitry；The fast switch-dividing current detecting of several groups direct current
Module is connect with the fast switch-dividing connecting interface of direct current respectively, for detect flow through the fast switch-dividing of each direct current current signal and
Pass controller circuitry.
6. the fast switch-dividing calibration equipment of direct current according to claim 1, it is characterised in that the direct current separately correlates soon
Connection interface has two groups, and each group of connecting interface is for connecting a fast switch-dividing of direct current.
7. the method for calibration of the fast switch-dividing calibration equipment of direct current described in a kind of one of claim 1~6, it is characterised in that including
Following steps：
S1. calibration equipment power-up initializing；
S2. user is configured the fast switch-dividing calibration equipment of direct current by touch screen；
The fast switch-dividing of direct current to be verified is connected to the fast switch-dividing connecting interface of direct current by S3；
S4. it is closed starting switch, verification starts；
S5. controller circuitry record flows through the current data of the fast switch-dividing of direct current to be verified, and is obtained from standard clock signal source
Take the time point of the current data of the fast switch-dividing of direct current to be verified；
S6. the data that controller circuitry is obtained according to step S5 verify the fast switch-dividing of direct current to be verified, and will verification
As a result it is exported from touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414489.5A CN108776301A (en) | 2018-05-03 | 2018-05-03 | The fast switch-dividing calibration equipment of direct current and its method of calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414489.5A CN108776301A (en) | 2018-05-03 | 2018-05-03 | The fast switch-dividing calibration equipment of direct current and its method of calibration |
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| CN108776301A true CN108776301A (en) | 2018-11-09 |
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| CN201810414489.5A Pending CN108776301A (en) | 2018-05-03 | 2018-05-03 | The fast switch-dividing calibration equipment of direct current and its method of calibration |
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| CN107656196A (en) * | 2017-08-16 | 2018-02-02 | 全球能源互联网研究院有限公司 | A kind of dc circuit breaker routine testing equipment |
| CN208125891U (en) * | 2018-05-03 | 2018-11-20 | 国网湖南省电力有限公司 | The fast switch-dividing calibration equipment of direct current |
-
2018
- 2018-05-03 CN CN201810414489.5A patent/CN108776301A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2916648Y (en) * | 2006-01-16 | 2007-06-27 | 天津海飞特电源科技有限公司 | Portable DC circuit breaker characteristic testing device |
| CN201229253Y (en) * | 2008-07-10 | 2009-04-29 | 周秉时 | Multifunctional switch characteristic check meter |
| CN101504449A (en) * | 2009-03-13 | 2009-08-12 | 江苏省电力公司常州供电公司 | Experiment tester for spare power automatic switching apparatus |
| CN104251976A (en) * | 2014-09-24 | 2014-12-31 | 河北工业大学 | Protection property testing device of miniature circuit breaker and running method thereof |
| CN105278324A (en) * | 2015-11-09 | 2016-01-27 | 电子科技大学 | Double-constant current source structure-based high-resolution fast time interval measurement circuit |
| CN106771995A (en) * | 2016-11-14 | 2017-05-31 | 中国人民解放军海军潜艇学院 | A kind of mold cased circuit breaker calibration equipment |
| CN107238768A (en) * | 2017-05-15 | 2017-10-10 | 国家电网公司 | A kind of direct current protecting time on-site calibration device and method based on same clock source |
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Application publication date: 20181109 |