CN107741521A - Three-phase system non-contact type high voltage is powered to judge instruction device and its method - Google Patents
Three-phase system non-contact type high voltage is powered to judge instruction device and its method Download PDFInfo
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- CN107741521A CN107741521A CN201711240642.9A CN201711240642A CN107741521A CN 107741521 A CN107741521 A CN 107741521A CN 201711240642 A CN201711240642 A CN 201711240642A CN 107741521 A CN107741521 A CN 107741521A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The present invention relates to a kind of powered judgement instruction device of three-phase system non-contact type high voltage and its method, including：Induction module, measurement module, data processing module display module, control module and power module；Induction module is connected with measurement module；Measurement module, display module and control module are connected with data processing module；Induction module, measurement module, display module, control module and data processing module are connected with power module.The induced signal of position to be detected is obtained by induction module, the intensity and phase of the induced signal are obtained by measurement module；The relation between the relation between the relation between the relation and diverse location induced signal phase between diverse location induced signal intensity and default diverse location induced signal intensity and default diverse location induced signal phase is matched by data processing module, determines the powered situation of three-phase system to be detected.
Description
Technical field
The present invention relates to a kind of powered judgement instruction device of three-phase system non-contact type high voltage and its method.
Background technology
In high-voltage system, powered folding circuit can cause the device damage even system failure, and operating personnel are strayed into
Electrification in high voltage interval more entail dangers to life.To ensure the security of the lives and property, it should take the necessary measures and avoid above-mentioned accident from occurring, have
The measure of effect includes installing electrification in high voltage state indicating device and electrified locking device for equipment.Electrification in high voltage state indicating device
For reminding operating personnel's system to be in electriferous state, hot line job is not answered or enters entering into charged intervals；Electrified locking device then may be used
With the forced blocking operating mechanism when system is powered and powered interval, operating personnel's maloperation or mistakenly entering charged chamber are avoided.On
The premise for stating two kinds of device work is the correct electriferous state for judging high-pressure system.
Judging the method for high-pressure system electriferous state mainly has three kinds：First method is that hair is installed on high-voltage charged body
Body of light, light is driven by electric field energy when system is powered, indicates its electriferous state.This decision method is only behaviour
Make personnel and alarm signal is provided, it is impossible to provide forced blocking signal for blocking device.Because alarm signal is easily by " artificial to neglect
Depending on ", the effect of its safety guarantee is limited.
Second method is that high voltage is converted to low-voltage by capacitance partial pressure, and the low-voltage is used directly for driving
Light, the microprocessor that low-pressure side can also be sent to as signal are handled, once microprocessor judges high pressure
Side is powered, will export forced blocking signal block operating mechanism and powered interval.This method has mandatory protection function, peace
Full guaranteeing role is stronger, but its shortcoming is that high voltage is connected with the earth by distinct capacitor, potential safety hazard be present.
The third method is to install inductive probe, the microprocessor of low-pressure side outside the electrical safety distance of high-voltage charged body
Device judges whether high-voltage charged body is powered according to induced signal.Once microprocessor judges that high-voltage charged body is powered, will export
Forced blocking signal block operating mechanism and powered interval.This method has higher because it is not contacted directly with high-voltage charged body
Security performance, so as to obtain increasingly extensive application.But in three-phase system the induced signal of each sensor simultaneously by
To the influence of three-phase electriferous state, judging whether a certain phase in high-pressure side is powered according to the induced signal of some sensor in isolation is
It is infeasible.It is therefore necessary to propose that a kind of non-contact type high voltage of energy each phase electriferous state of accurate judgement three-phase system is powered to sentence
Disconnected method, and meet the high reliability non-contact type high voltage charge indicating device that power system " five is anti-" requires.
The content of the invention
Instruction device and its method are judged it is an object of the invention to provide a kind of three-phase system non-contact type high voltage is powered,
To overcome defect present in prior art.
To achieve the above object, the technical scheme is that：A kind of powered judgement of three-phase system non-contact type high voltage refers to
Showing device, including：It is arranged at three-phase system to be detected position to be detected and is sensed for sensing high-pressure side charged signal with obtaining
The induction module of signal, for measure induced signal intensity and phase with obtain the measurement module of measurement data, for measurement
The data processing module that data are handled, the display module for indicating electrification in high voltage state, for controlling blocking mechanism
Control module and the power module for providing working power；The induction module is connected with the measurement module；The survey
Amount module, the display module and the control module are connected with the data processing module；It is the induction module, described
Measurement module, the display module, the control module and the data processing module are connected with the power module.
Further, a kind of powered determination methods of three-phase system non-contact type high voltage are also provided, obtained by induction module
The induced signal of position to be detected, and obtain by measurement module the intensity and phase of the induced signal；Data processing module leads to
Cross the relation between the relation and diverse location induced signal phase between diverse location induced signal intensity, with it is default not
Matched with the relation between the relation between location sensitive signal intensity and default diverse location induced signal phase, really
The powered situation of fixed three-phase system to be detected.
In an embodiment of the present invention, the powered situation of the three-phase system is represented by following 8 kinds powered assembled states：
1）A, B, C three-phase are powered；
2）A, B two-phases are powered, and C phases are not charged；
3）A, C two-phases are powered, and B phases are not charged；
4）B, C two-phases are powered, and A phases are not charged；
5）A phases are powered, and B, C two-phase are not charged；
6）B phases are powered, and A, C two-phase are not charged；
7）C phases are powered, and A, B two-phase are not charged；
8）A, B, C three-phase are not charged.
In an embodiment of the present invention, the induced signal intensity includes：Amplitude, virtual value or average value.
In an embodiment of the present invention, the relation between the diverse location induced signal intensity includes：Be more than, be less than,
It is equal to or absolute difference is in preset range.
In an embodiment of the present invention, the relation between the diverse location induced signal phase includes：Diverse location sense
Phase difference between induction signal is in preset range.
In an embodiment of the present invention, the position to be detected comprises at least two.
Compared to prior art, the invention has the advantages that：A kind of three-phase system proposed by the present invention is non-contact
Formula electrification in high voltage judges instruction device and its method, there is provided a kind of energy each the non-of phase electriferous state of accurate judgement three-phase system connects
Touch electrification in high voltage device and determination methods, meet the powered finger of high reliability non-contact type high voltage in power system " five is anti-"
The requirement shown.
Brief description of the drawings
Fig. 1 is the powered schematic diagram for judging instruction device of three-phase system non-contact type high voltage in the present invention.
Fig. 2 is sensor scheme of installation in one embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawings, technical scheme is specifically described.
The present invention provides a kind of powered judgement instruction device of three-phase system non-contact type high voltage, as shown in figure 1, including：If
Be placed in three-phase system to be detected position to be detected and for sense high-pressure side charged signal with obtain the induction module of induced signal,
For measuring induced signal intensity and phase to obtain the measurement module of measurement data, the number for being handled measurement data
According to processing module, the display module for indicating electrification in high voltage state, the control module for controlling blocking mechanism and it is used for
The power module of working power is provided；Induction module is connected with measurement module；Measurement module, display module and control module
It is connected with data processing module；Induction module, measurement module, display module, control module and data processing module with
Power module is connected.
In the present embodiment, above-mentioned functional module can be that One function module is realized in multiple physical devices mutual cooperations
Function or a physical device realize multiple functional modules.
Further, also provide a kind of three-phase system non-contact type high voltage powered judgement indicating means, pass through induction module
The induced signal of position to be detected is obtained, and the induced signal intensity and induced signal of the induced signal are obtained by measurement module
Phase；Data processing module is by by the relation and diverse location induced signal between different location sensitive signal intensities to be detected
Relation and default diverse location induced signal between relation between phase, with default diverse location induced signal intensity
Relation between phase is matched, and determines the powered situation of three-phase system to be detected.
In the present embodiment, when it is determined that three-phase system to be detected powered situation after, shown by display module corresponding to
Information, and corresponding blocking mechanism is controlled by the control module.
In the present embodiment, diverse location induced signal intensity includes：Amplitude, virtual value or average value.
In the present embodiment, the relation between diverse location induced signal intensity includes：It is more than, is less than, being equal to or difference
Absolute value is in preset range.
In the present embodiment, the relation between diverse location induced signal phase includes：Between diverse location induced signal
Phase difference be in preset range.
In the present embodiment, position to be detected comprises at least two.The sensor probe minimum number of induction module is 2
It is individual.
In order to allow those skilled in the art to further appreciate that technical scheme proposed by the invention, with reference to specific implementation
Example illustrates.
The inductive pick-up schematic view of the mounting position that the present embodiment provides is as shown in Fig. 2 wherein：
Three-phase high-voltage electrical body is provided, the advanced B phases of A phase C phases in advance in phase, B-phase is between A phases and C phases on position.
In the present embodiment, respectively near three-phase electrical body, each phase senses three inductive pick-ups of induction module
Device is less than the distance between other two-phase electrical bodies with the distance of corresponding phase electrical body.Table 1 is the use provided in the present embodiment
In judging induced signal strength relationship and induced signal phase corresponding to the various powered assembled states of three-phase system electriferous state
The parameter preset of the affiliated scope of potential difference.Wherein, exist in induced signal strength relationship and be approximately equal to situation and pass through two induced signals
The absolute value of difference determines, when absolute difference be in preset range, then two values pass through to be approximately equal to and limited between it
Relation.Preset range corresponding to absolute difference determines according to specific actual conditions.
Table 1
Wherein,It is the induced signal intensity of A phases,It is the induced signal intensity of B phases,It is that C is passed on from one to another
The induced signal intensity of sensor；
Wherein,It is the phase difference of A phases induced signal and B phase induced signals,It is B phases induced signal and C phase induced signals
Phase difference.
Wherein, when A, B, C three-phase are not charged, induced signal intensity is zero, does not consider phase problem.
Pass through the relation between the diverse location induced signal intensity that will be gathered and diverse location induced signal phase
Between relation matched with above-mentioned parameter preset, consider the strength relationship and the affiliated scope of phase difference of induced signal,
Which kind of electriferous state can be in accurate judgement three-phase system.
In the present embodiment, above-mentioned parameter preset specifically determines according to the quantity of sensor, installation site in induction module.
Above is presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, caused function are made
During with scope without departing from technical solution of the present invention, protection scope of the present invention is belonged to.
Claims (7)
- A kind of 1. powered judgement instruction device of three-phase system non-contact type high voltage, it is characterised in that including：It is arranged to be detected three Phase system position to be detected and for sense high-pressure side charged signal with obtain the induction module of induced signal, for measure sense Signal intensity and phase to obtain the measurement module of measurement data, for measurement data is handled data processing module, For indicating the display module of electrification in high voltage state, the control module for controlling blocking mechanism and for providing working power Power module；The induction module is connected with the measurement module；The measurement module, the display module and described Control module is connected with the data processing module；It is the induction module, the measurement module, the display module, described Control module and the data processing module are connected with the power module.
- 2. a kind of powered determination methods of three-phase system non-contact type high voltage, it is characterised in that obtained by induction module to be detected The induced signal of three-phase system position to be detected, and obtain by measurement module the intensity and phase of the induced signal；At data Module is managed by by the relation between the relation and diverse location induced signal phase between diverse location induced signal intensity, with The relation between relation and default diverse location induced signal phase between default diverse location induced signal intensity is entered Row matching, determine the powered situation of three-phase system to be detected.
- 3. the powered determination methods of three-phase system non-contact type high voltage according to claim 2, it is characterised in that the three-phase The powered situation of system is represented by following 8 kinds powered assembled states：1）A, B, C three-phase are powered；2）A, B two-phases are powered, and C phases are not charged；3）A, C two-phases are powered, and B phases are not charged；4）B, C two-phases are powered, and A phases are not charged；5）A phases are powered, and B, C two-phase are not charged；6）B phases are powered, and A, C two-phase are not charged；7）C phases are powered, and A, B two-phase are not charged；8）A, B, C three-phase are not charged.
- 4. the powered determination methods of three-phase system non-contact type high voltage according to claim 2, it is characterised in that the sensing Signal intensity includes：Amplitude, virtual value or average value.
- 5. the powered determination methods of three-phase system non-contact type high voltage according to claim 2, it is characterised in that the difference Relation between location sensitive signal intensity includes：It is more than, is less than, being equal to or absolute difference is in preset range.
- 6. the powered determination methods of three-phase system non-contact type high voltage according to claim 2, it is characterised in that the difference Relation between location sensitive signal phase includes：Phase difference between diverse location induced signal is in preset range.
- 7. the powered determination methods of three-phase system non-contact type high voltage according to claim 2, it is characterised in that described to be checked Location is put including at least two.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711240642.9A CN107741521B (en) | 2017-11-30 | 2017-11-30 | Three-phase system non-contact high-voltage electrification judging and indicating device and method thereof |
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| CN201711240642.9A CN107741521B (en) | 2017-11-30 | 2017-11-30 | Three-phase system non-contact high-voltage electrification judging and indicating device and method thereof |
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| CN107741521A true CN107741521A (en) | 2018-02-27 |
| CN107741521B CN107741521B (en) | 2023-06-09 |
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Cited By (4)
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| CN110726966A (en) * | 2019-12-03 | 2020-01-24 | 积成电子股份有限公司 | Device and method for monitoring existence and nonexistence of non-contact electric energy meter |
| CN111025006A (en) * | 2019-12-20 | 2020-04-17 | 云南电网有限责任公司玉溪供电局 | Non-contact voltage detection and phase recognition device |
| CN112787650A (en) * | 2020-12-30 | 2021-05-11 | 国网河北省电力有限公司 | Method and device for rapidly judging three-phase position of isolating switch |
| CN114280354A (en) * | 2021-12-21 | 2022-04-05 | 镇江市百汇电器有限公司 | Three-phase system non-contact high-voltage live detection circuit |
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| CN110726966A (en) * | 2019-12-03 | 2020-01-24 | 积成电子股份有限公司 | Device and method for monitoring existence and nonexistence of non-contact electric energy meter |
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| CN112787650B (en) * | 2020-12-30 | 2022-09-13 | 国网河北省电力有限公司 | Method and device for rapidly judging three-phase position of isolating switch |
| CN114280354A (en) * | 2021-12-21 | 2022-04-05 | 镇江市百汇电器有限公司 | Three-phase system non-contact high-voltage live detection circuit |
| CN114280354B (en) * | 2021-12-21 | 2023-11-14 | 镇江市百汇电器有限公司 | Non-contact high-voltage live detection circuit of three-phase system |
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| CN107741521B (en) | 2023-06-09 |
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