CN108490346A - A kind of rotating fuse monitoring method and device - Google Patents
A kind of rotating fuse monitoring method and device Download PDFInfo
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- CN108490346A CN108490346A CN201810478296.6A CN201810478296A CN108490346A CN 108490346 A CN108490346 A CN 108490346A CN 201810478296 A CN201810478296 A CN 201810478296A CN 108490346 A CN108490346 A CN 108490346A
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- pole tension
- operating point
- pole
- exciting current
- threshold value
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fuses (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The invention discloses a kind of rotating fuse monitoring method and devices, belong to circuit product monitoring technical field.This method includes：Obtain the exciting current original value of each operating point；According to exciting current original value, pole tension threshold value between determining；When between each operating point pole tension data exceed between pole tension threshold value when, send out alarm signal.Pole tension threshold value between the rotating fuse monitoring method of the present invention utilizes exciting current to obtain under rotary rectification device normal operating conditions, pole tension between reality and a pole tension threshold value are compared, it is realized to the accurate monitoring of the whole process of rotary rectification device working condition with this, overcomes and only the problem of false alarm occur as reference with a pole tension in the prior art.
Description
Technical field
The present invention relates to circuit product monitoring technical field, more particularly to a kind of rotating fuse monitoring method and device.
Background technology
Fuse is so that melt is fused with the heat that itself is generated, one kind of disconnecting circuit when electric current is more than specified value
Electric appliance.
Brushless exciting generating set is by generator, rotary rectification device and Exciter Sets at one of feature is that do not have
Collector ring and carbon brush, generator amature and rotary rectification device and armature of exciter are coaxially disposed, synchronous rotary together when operation；
Exciting current is provided indirectly by exciter stator, by turning to generator after exciter progress power amplification and rotary rectification device
Son provides DC excitation.
For the detection requirement for realizing to rotating fuse, exciter is provided with " pole winding " between magnetic pole of the stator, is used for
Pole tension between acquisition armature rotor reaction.When fairing works normally, the amplitude of pole tension is with generator loading
Increase and decrease and increase and decrease；When fairing breaks down, the signal amplitude of pole tension just will appear larger amplitude variation.
Existing rotating fuse monitoring device is the work that rotary rectification device is judged by the amplitude of pole tension
State sets alarm threshold by the threshold value of pole tension.Just because of existing rotating fuse monitoring device only with
Between pole tension as reference, cause to will appear false alarm in actual use, when generator operation is at light load, even if
Rotary rectification device goes wrong, and the signal amplitude of pole tension, which does not reach threshold value, will not then alarm；In addition, at generator
When light overload state, then alarm can be sent out.
Invention content
An embodiment of the present invention provides a kind of rotating fuse monitoring method and devices, to solve existing rotating fuse
The problem of monitoring method and device only will appear false alarm as reference with pole tension.For the embodiment to disclosure
There are one basic understandings for some aspects, and simple summary is shown below.The summarized section is not extensive overview, nor wanting
It determines key/critical component or describes the protection domain of these embodiments.Its sole purpose is presented with simple form
Some concepts, in this, as the preamble of following detailed description.
According to a first aspect of the embodiments of the present invention, a kind of rotating fuse monitoring method is provided, including：Obtain each fortune
The exciting current original value of row point；According to exciting current original value, pole tension threshold value between determining；When pole tension between each operating point
Between data exceed when pole tension threshold value, alarm signal is sent out.
In some optional embodiments, the method includes：The exciting current original value for obtaining each operating point, packet
It includes：The exciting current original value of each operating point is obtained by exciting current acquisition module.
It is described according to exciting current original value, pole tension threshold value between determining, including：The exciting current of each operating point is original
It is worth input dc power flow transmitter, exciting current original value is converted to current signal by DC current transmitter.
After exciting current original value is converted to current signal by the DC current transmitter, further include：Electric current is believed
Current signal is analyzed and is converted into corresponding to extremely electric between each operating point by number input programmable controller, programmable controller
Press threshold value.
The functional relation of pole tension threshold value is U between determinationu2=7 × Ui2×Kimax/Kumax, wherein Uu2For a pole tension
Threshold value, Ui2For current signal, KimaxFor DC current transmitter input range maximum value, KumaxIt is inputted for DC voltage transmitter
Range maximum value.
It is described when between each operating point pole tension data exceed between pole tension threshold value when, send out alarm signal, including：Pass through
Between pole search coil obtain pole tension original value between each operating point.
It is described when between each operating point pole tension data exceed between pole tension threshold value when, send out alarm signal, including：It will be each
Pole tension original value input direct-current voltage transmitter between operating point, DC voltage transmitter pole tension original value by between are converted to
Voltage signal.
It is described when between each operating point pole tension data exceed between pole tension threshold value when, send out alarm signal, including：It will be electric
Signal is pressed to input programmable controller, voltage signal is analyzed and is converted between corresponding each operating point by programmable controller
Pole tension data.
It is described when between each operating point pole tension data exceed between pole tension threshold value when, send out alarm signal, including：When each
When pole tension data are without departing from pole tension threshold value between operating point, normal work indicator light is opened.
According to a second aspect of the embodiments of the present invention, a kind of rotating fuse monitoring device is provided, including：Exciting current is adopted
Collect module, the exciting current original value for obtaining each operating point；Determining module, for according to exciting current original value, determining
Between pole tension threshold value；Main control module, for when between each operating point pole tension data exceed between pole tension threshold value when, send out alarm
Signal.
In some optional embodiments, the rotating fuse monitoring device further includes monitoring module, the monitoring module
For remotely receiving the alarm signal.
The determining module includes DC current transmitter and programmable controller, and the DC current transmitter is used for will
Exciting current original value is converted to current signal, and the programmable controller by current signal for being analyzed and being converted into pair
Answer pole tension threshold value between each operating point.
The main control module include between pole search coil and DC voltage transmitter, it is described between pole search coil for obtaining
Pole tension original value between each operating point, the DC voltage transmitter are used for the pole tension original value by between and are converted to voltage letter
Number.The DC voltage transmitter is connect with the programmable controller, and the programmable controller is divided voltage signal
It analyses and is converted into pole tension data between corresponding each operating point.
Technical solution provided in an embodiment of the present invention can include the following benefits：
The rotating fuse monitoring method of the present invention is obtained using exciting current under rotary rectification device normal operating conditions
Between pole tension threshold value, pole tension between reality and a pole tension threshold value are compared, realized to rotary rectification device work with this
The accurate monitoring of whole process for making state, overcomes and only asking for false alarm occurs as reference with a pole tension in the prior art
Topic.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not
It can the limitation present invention.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the present invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is a kind of flow diagram of rotating fuse monitoring method shown according to an exemplary embodiment；
Fig. 2 is a kind of structure diagram of rotating fuse monitoring device shown according to an exemplary embodiment.
Specific implementation mode
The following description and drawings fully show specific embodiments of the present invention, to enable those skilled in the art to
Put into practice them.Embodiment only represents possible variation.Unless explicitly requested, otherwise individual components and functionality is optional, and
And the sequence of operation can change.The part of some embodiments and feature can be included in or replace other embodiments
Part and feature.The range of embodiment of the present invention includes the entire scope of claims and the institute of claims
There is obtainable equivalent.Herein, each embodiment can individually or generally be indicated that this is only with term " invention "
It is merely for convenience, and if in fact disclosing the invention more than one, be not meant to automatically limit the range of the application
For any single invention or inventive concept.Herein, relational terms such as first and second and the like are used only for one
Entity, which either operates to distinguish with another entity or operation, to be existed without requiring or implying between these entities or operation
Any actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include, so that process, method or equipment including a series of elements include not only those elements, but also to include
Other elements that are not explicitly listed.Each embodiment herein is described by the way of progressive, and each embodiment stresses
Be all difference from other examples, just to refer each other for identical similar portion between each embodiment.For implementing
For structure, product etc. disclosed in example, since it is corresponding with part disclosed in embodiment, so fairly simple, the phase of description
Place is closed referring to method part illustration.
Fig. 1 is a kind of flow diagram of rotating fuse monitoring method shown according to an exemplary embodiment.
As shown in Figure 1, the present invention provides a kind of rotating fuse monitoring method, can overcome in the prior art only with
Between pole tension there is the problem of false alarm as reference, meet to the accurate prison of the whole process of rotary rectification device working condition
It surveys.Specifically, the monitoring method includes：
Step S101 obtains the exciting current original value of each operating point；
Step S102, according to exciting current original value, pole tension threshold value between determining；
Step S103 judges pole tension threshold value between whether pole tension data exceed between each operating point, if it is, executing
Step S104, if it is not, then repeating the judgment step of step S103；
Step S104, sends out alarm signal.
In the present embodiment, as a kind of preferable case, step S101 obtains the exciting current original value of each operating point, step
Suddenly include mainly：The exciting current original value of each operating point is obtained by exciting current acquisition module.
Step S102 is according to exciting current original value, pole tension threshold value between determining, step includes mainly：By each operating point
Exciting current original value input dc power flow transmitter, DC current transmitter by exciting current original value be converted to electric current believe
Number；Current signal is inputted into programmable controller, current signal is analyzed and is converted into corresponding to each fortune by programmable controller
Pole tension threshold value between row point.
Step S103 judges that pole tension threshold value between whether pole tension data exceed between each operating point, step are mainly wrapped
It includes：Pole tension original value between each operating point is obtained by a pole search coil；Pole tension original value between each operating point is defeated
Enter DC voltage transmitter, DC voltage transmitter pole tension original value by between is converted to voltage signal；Voltage signal is inputted
Voltage signal is analyzed and is converted into pole tension number between corresponding each operating point by programmable controller, programmable controller
According to.
In the present embodiment, as a kind of preferable case, when between each operating point pole tension data without departing from a pole tension threshold
When value, normal work indicator light is opened, to indicate that rotary rectification device works normally.
When between each operating point pole tension data exceed between pole tension threshold value when, execute step S104, send out alarm signal.
Fig. 2 is a kind of structure diagram of rotating fuse monitoring device shown according to an exemplary embodiment.
As shown in Fig. 2, the present invention also provides a kind of rotating fuse monitoring device 200, which can answer
The working condition of rotating fuse is monitored for the monitoring method flow in above-described embodiment, specifically, monitoring device
200 include：
Exciting current acquisition module 210, the exciting current original value for obtaining each operating point；
Determining module 220 is used for according to exciting current original value, pole tension threshold value between determining；
Main control module 230, for when between each operating point pole tension data exceed between pole tension threshold value when, send out alarm signal
Number.
The rotating fuse monitoring device 200 of the present invention obtains rotary rectification device using exciting current and works normally shape
Pole tension threshold value between under state compares pole tension between reality and a pole tension threshold value, is realized with this and is filled to rotary rectifier
The accurate monitoring of whole process for setting working condition, overcomes and only false alarm occurs as reference with a pole tension in the prior art
The problem of.
In the present embodiment, as a kind of preferable case, determining module 220 includes DC current transmitter 221 and may be programmed
Controller 222, DC current transmitter 221 are used to exciting current original value being converted to current signal, programmable controller 222
For current signal is analyzed and is converted into correspond to each operating point between pole tension threshold value.
Main control module 230 include between pole search coil 231 and DC voltage transmitter 232, a pole search coil 231 is used for
Obtain pole tension original value between each operating point, DC voltage transmitter 232 be used for will between pole tension original value be converted to voltage
Signal.DC voltage transmitter 232 is connect with programmable controller 222, and programmable controller 222 analyzes voltage signal
And it is converted into pole tension data between corresponding each operating point.
Monitoring device 200 further includes monitoring module 240, and monitoring module 240 is for remotely receiving alarm signal.
It should be understood that the invention is not limited in the flow and structure that are described above and are shown in the accompanying drawings,
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is only limited by the attached claims
System.
Term as used herein is merely to describe specific embodiment, and be not intended to be limited to the present invention.As used herein,
Singulative " one ", "one" and "the" are also intended to including plural form, unless the context clearly indicates otherwise.It will also reason
Solution, when used in the instructions, term " include " and or " include " indicate there are the feature, entirety, step, operation,
Element and/or component, but do not preclude the presence or addition of other one or more features, entirety, step, operation, element and/or group
Part.
All devices or step in the appended claims add the corresponding construction of function element, material, operate and wait
Valence object, it is intended to include in conjunction with other elements claimed such as special requirement protection come any of function as described in executing
Structure, material or operation.The explanation that the present invention is presented is effect in order to show and describe, but is not exhaustive or sends out this
It is bright to be limited to disclosed form.Many modifications and variations are it will be evident that and not departing from for those of ordinary skills
The scope of the present invention.Selection and description embodiment are the principle of the present invention and practical application, and so that sheet in order to most preferably explain
The various embodiments with various modifications that field those of ordinary skill can be directed to the special-purpose suitable for considering understand the present invention.
Claims (10)
1. a kind of rotating fuse monitoring method, which is characterized in that including：
Obtain the exciting current original value of each operating point；
According to exciting current original value, pole tension threshold value between determining；
When between each operating point pole tension data exceed between pole tension threshold value when, send out alarm signal.
2. according to the method described in claim 1, it is characterized in that, the exciting current original value for obtaining each operating point, packet
It includes：The exciting current original value of each operating point is obtained by exciting current acquisition module.
3. method according to claim 1 or 2, which is characterized in that the pole tension data between each operating point exceed
Between pole tension threshold value when, send out alarm signal, including：Pole tension is original between obtaining each operating point by a pole search coil
Value.
4. according to the method described in claim 3, it is characterized in that, the pole tension data between each operating point exceed between pole
When voltage threshold, alarm signal is sent out, including：By pole tension original value input direct-current voltage transmitter between each operating point, directly
Galvanic electricity pressure transmitter pole tension original value by between is converted to voltage signal.
5. according to the method described in claim 4, it is characterized in that, the pole tension data between each operating point exceed between pole
When voltage threshold, alarm signal is sent out, including：Voltage signal is inputted into programmable controller, programmable controller believes voltage
It number is analyzed and is converted into corresponding to pole tension data between each operating point.
6. according to the method described in claim 5, it is characterized in that, the pole tension data between each operating point exceed between pole
When voltage threshold, alarm signal is sent out, including：When pole tension data are without departing from pole tension threshold value between each operating point, open
Open normal work indicator light.
7. a kind of rotating fuse monitoring device, which is characterized in that including：
Exciting current acquisition module, the exciting current original value for obtaining each operating point；
Determining module is used for according to exciting current original value, pole tension threshold value between determining；
Main control module, for when between each operating point pole tension data exceed between pole tension threshold value when, send out alarm signal.
8. device according to claim 7, which is characterized in that further include monitoring module, the monitoring module is for long-range
Receive the alarm signal.
9. device according to claim 8, which is characterized in that the main control module include between pole search coil, between described
Pole search coil is for obtaining pole tension original value between each operating point.
10. device according to claim 9, which is characterized in that the main control module further includes DC voltage transmitter, institute
State DC voltage transmitter for will between pole tension original value be converted to voltage signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810478296.6A CN108490346B (en) | 2018-05-18 | 2018-05-18 | Method and device for monitoring rotary fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810478296.6A CN108490346B (en) | 2018-05-18 | 2018-05-18 | Method and device for monitoring rotary fuse |
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| Publication Number | Publication Date |
|---|---|
| CN108490346A true CN108490346A (en) | 2018-09-04 |
| CN108490346B CN108490346B (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810478296.6A Active CN108490346B (en) | 2018-05-18 | 2018-05-18 | Method and device for monitoring rotary fuse |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703161A (en) * | 2019-09-18 | 2020-01-17 | 国网江苏省电力有限公司淮安市洪泽区供电分公司 | Distribution lines fuse on-line monitoring system |
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| CN110703161A (en) * | 2019-09-18 | 2020-01-17 | 国网江苏省电力有限公司淮安市洪泽区供电分公司 | Distribution lines fuse on-line monitoring system |
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| Publication number | Publication date |
|---|---|
| CN108490346B (en) | 2020-12-25 |
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