CN107015100A - The over-pressed test circuit of electric leakage and the pressure tester that leaked electricity - Google Patents
The over-pressed test circuit of electric leakage and the pressure tester that leaked electricity Download PDFInfo
- Publication number
- CN107015100A CN107015100A CN201710306652.1A CN201710306652A CN107015100A CN 107015100 A CN107015100 A CN 107015100A CN 201710306652 A CN201710306652 A CN 201710306652A CN 107015100 A CN107015100 A CN 107015100A
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- Prior art keywords
- circuit
- voltage
- electric leakage
- over
- wave
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- 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
- G01R19/06—Measuring real component; Measuring reactive component
-
- 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
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
-
- 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
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/1659—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window)
- G01R19/16595—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window) with multi level indication
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention provides the over-pressed test circuit of one kind electric leakage and the pressure tester that leaked electricity, it is related to detection of electrical leakage technical field, wherein, the over-pressed test circuit of electric leakage includes：Transforming circuit, current rectifying and wave filtering circuit, comparison circuit, output circuit and voltmeter；Transforming circuit is used to carry out transformation to electrical leakage voltage and exported to current rectifying and wave filtering circuit；Current rectifying and wave filtering circuit is used to carry out rectifying and wave-filtering to the electrical leakage voltage after transformation；Comparison circuit is used to the electrical leakage voltage after rectifying and wave-filtering and reference voltage being compared, and comparative result is exported to output circuit；Output circuit shows comparative result；Voltmeter is arranged at the input of transforming circuit, current rectifying and wave filtering circuit, comparison circuit or output circuit, solve prior art can not and meanwhile provide current electrical leakage voltage whether overvoltage and electric leakage type, reached the technique effect of automatic prompting active electrical leakage voltage overvoltage.
Description
Technical field
The present invention relates to detection of electrical leakage technical field, surveyed more particularly, to the over-pressed test circuit of one kind electric leakage and electric leakage overvoltage
Try instrument.
Background technology
During being overhauled to power transmission sequence or electrical equipment, when occur Leaked Current of Line to Ground when, electric leakage circuit with
Ground formation loop, while there is voltage generation, has electric current to flow through.This voltage can drive electrical equipment to work, with using power supply
Voltage phase difference is very few, and usual this voltage is referred to as active voltage.It can just be measured using voltmeter or universal meter.
But not all voltage measured by voltmeter or universal meter, electrical equipment can be driven to do work, make electricity
Gas equipment works, that is to say, that the voltage measured by voltmeter or universal meter may without carrying load ability, generally by it is this not
The voltage that can be done work is referred to as reactive voltage, and this voltage will not drive loaded work piece, and more people will not be damaged.
But, when leaking electricity, prior art can not provide electric leakage type simultaneously, and current electrical leakage voltage whether
Overvoltage, electric leakage type refers to active voltage and reactive voltage, maintenance personal is carried out unnecessary maintenance, or can not
Reasonably according to the order of importance and emergency arrangement maintenance of accident order, overhaul efficiency is relatively low.
The content of the invention
In view of this, it is an object of the invention to provide the over-pressed test circuit of one kind electric leakage, to solve to deposit in the prior art
Electric leak detecting device can not provide whether electrical leakage voltage over-pressed simultaneously, and electric leakage type technical problem.
In a first aspect, the embodiments of the invention provide the over-pressed test circuit of one kind electric leakage, including：Transforming circuit, rectification filter
Wave circuit, comparison circuit, output circuit and voltmeter；
Transforming circuit is used to carry out transformation to electrical leakage voltage and exported to current rectifying and wave filtering circuit；
Current rectifying and wave filtering circuit is used to carry out rectifying and wave-filtering to the electrical leakage voltage after transformation；
Comparison circuit is used to the electrical leakage voltage after rectifying and wave-filtering and reference voltage being compared, and comparative result is exported
To output circuit；
Output circuit shows comparative result；
Voltmeter is arranged at the input of transforming circuit, current rectifying and wave filtering circuit, comparison circuit or output circuit.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, also
Including gear selection circuit, electrical leakage voltage is inputted after gear selection circuit to transforming circuit.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of second of first aspect, wherein, gear
The input of position selection circuit is also associated with fuse.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the third of first aspect, wherein, gear
The gear voltage of position selection circuit includes：2V, 127V, 220V, 380V, 660V, 1140V and 1250V.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 4th of first aspect kind, wherein, it is whole
Flowing filter circuit includes bridge rectifier, and the π type filter circuits connected with bridge rectifier, and π type filter circuits
Connect comparison circuit.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 5th of first aspect kind, wherein, it is defeated
Go out circuit and comparative result is shown by alarm, alarm is preset with some alarm sounds；
Compared result is sorted out, and the comparative result after classification and alarm sound are corresponded.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 6th of first aspect kind, wherein, when
Electrical leakage voltage is active voltage, and when the electrical leakage voltage after rectifying and wave-filtering is more than or equal to reference voltage, alarm output the
One alarm sound；
When the electrical leakage voltage after rectifying and wave-filtering is less than the reference voltage, alarm exports the second alarm sound.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 7th of first aspect kind, wherein, when
When electrical leakage voltage is reactive voltage, alarm is in off working state.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 8th of first aspect kind, wherein, it is defeated
Going out circuit also includes indicator lamp, and the state of indicator lamp is corresponding with the alarm sound of alarm.
Second aspect, the embodiment of the present invention also provides one kind and leaked electricity pressure tester, including first aspect and its may be real
Apply the over-pressed test circuit of electric leakage described in mode.
The embodiment of the present invention brings following beneficial effect：
The over-pressed test circuit of electric leakage provided in an embodiment of the present invention carries out transformation to electrical leakage voltage and defeated by transforming circuit
Go out to current rectifying and wave filtering circuit；Rectifying and wave-filtering is carried out to the electrical leakage voltage after transformation by current rectifying and wave filtering circuit；Pass through comparison circuit
Electrical leakage voltage after rectifying and wave-filtering and reference voltage are compared, and comparative result is exported to output circuit；Finally export
Circuit shows comparative result.Shown accordingly according to comparative result, both given electric leakage type, and to active electricity
Pressure has carried out over-pressed display, facilitates detection of electrical leakage and maintenance to power transmission network and electrical equipment.
Other features and advantages of the present invention will be illustrated in the following description, also, partly be become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in accompanying drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram for the over-pressed test circuit of electric leakage that the embodiment of the present invention 1 is provided；
Fig. 2 is a kind of schematic diagram of the preferred embodiment for the over-pressed test circuit of electric leakage that the embodiment of the present invention 1 is provided；
Fig. 3 is a kind of circuit diagram of the preferred embodiment for the over-pressed test circuit of electric leakage that the embodiment of the present invention 1 is provided；
Fig. 4 is the circuit diagram of another preferred embodiment for the over-pressed test circuit of electric leakage that the embodiment of the present invention 1 is provided；
Fig. 5 be the embodiment of the present invention 2 provide electric leakage pressure tester schematic diagram；
Fig. 6 be the embodiment of the present invention 2 provide electric leakage pressure tester application method flow chart.
Icon：The over-pressed test circuit of 1- electric leakages；10- gear selection circuits；11- transforming circuits；12- current rectifying and wave filtering circuits；
13- comparison circuits；14- output circuits；15- reference voltage input circuits；2- display screens.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Current leakage testses circuit can not provide electrical leakage quantity simultaneously, and electric leakage is active voltage or reactive voltage,
Based on this, a kind of over-pressed test circuit of electric leakage provided in an embodiment of the present invention and the pressure tester that leaked electricity can be provided Lou simultaneously
Electricity and electric leakage type.
For ease of understanding the present embodiment, first to a kind of electric leakage overvoltage test electricity disclosed in the embodiment of the present invention
Road describes in detail.
Embodiment 1
As shown in figure 1, a kind of over-pressed test circuit of electric leakage, including：Transforming circuit 11, current rectifying and wave filtering circuit 12, comparison are electric
Road 13, output circuit 14 and voltmeter V；Transforming circuit 11 is used to carry out transformation to electrical leakage voltage and exported to current rectifying and wave filtering circuit
12；Current rectifying and wave filtering circuit 12 is used to carry out rectifying and wave-filtering to the electrical leakage voltage after transformation；Comparison circuit 13 is used for rectifying and wave-filtering
Electrical leakage voltage afterwards is compared with reference voltage, and comparative result is exported to output circuit 14；The display of output circuit 14 ratio
Relatively result；Voltmeter V is arranged at the input of transforming circuit 11, current rectifying and wave filtering circuit 12, comparison circuit 13 or output circuit 14.
The present embodiment carries out transformation to electrical leakage voltage by transforming circuit and exported to current rectifying and wave filtering circuit；Filtered by rectification
Wave circuit carries out rectifying and wave-filtering to the electrical leakage voltage after transformation；By comparison circuit by the electrical leakage voltage after rectifying and wave-filtering and reference
Voltage is compared, and comparative result is exported to output circuit；Last output circuit shows comparative result.According to than
Relatively result is shown accordingly, has both given electric leakage type, and has carried out over-pressed display to active voltage, is facilitated to transmission of electricity
The detection of electrical leakage and maintenance of network and electrical equipment.
As shown in Figures 2 and 3, as the another embodiment of the present embodiment, in addition to gear selection circuit 10, electric leakage
Voltage is inputted after gear selection circuit 10 to transforming circuit 11.Transforming circuit 11 includes primary induction coil L1, iron core and secondary
Level induction coil L2.
Gear selection circuit 10 includes some gear on-offs, and different gear on-offs connect primary according to different magnitudes of voltage
The diverse location of coil.The voltage gear voltage of gear selection circuit 10 in the present embodiment be preferably but not limited to 2V, 127V,
220V, 380V, 660V, 1140V and 1250V, can meet the detection of electrical leakage of common power transmission network and electrical equipment, specifically used
When can according to detection object utilization voltage scope be configured accordingly.
In order to improve the security of detection of electrical leakage, the input of the gear selection circuit 10 of the present embodiment is also associated with insurance
Silk FUSE, i.e. leakage current enter gear selection circuit 10 after fuse FUSE.If transmission line of electricity or electrical equipment are because of short circuit
And there is high current, or because other situations there is electric current and exceed fuse FUSE rated current when, blowout is to protect
Other circuits.
It should be noted that the voltmeter V of such a embodiment is preferably disposed on the input of gear selection circuit 10.
Current rectifying and wave filtering circuit 12 in the present embodiment includes bridge rectifier, and the π connected with bridge rectifier
Type filter circuit, and π types filter circuit connection comparison circuit.
First pass through bridge rectifier to electrical leakage voltage carry out full-wave rectification, then by π type filter circuits to rectification after
Electrical leakage voltage be filtered, and the electrical leakage voltage after rectifying and wave-filtering is exported to comparison circuit.
Comparison circuit 13 in the present embodiment uses existing comparable chip, by the electrical leakage voltage after filter rectification and reference electricity
Pressure is compared, and reference voltage can be same magnitude of voltage, and the comparison circuit of such a embodiment is simple in construction, and directly enters
Row compares, speed.
Different reference voltages can also be configured in the present embodiment for different gears, and preferably by reference voltage and gear
Position be associated, i.e., while gear select, also reference voltage is selected, such a embodiment suitable for compared with
The over-pressed test circuit of the electric leakage of big voltage measurement scope, and the use of the over-pressed test circuit of electric leakage using such a embodiment
Scope is wider.
As shown in figure 4, the comparison circuit 13 in the present embodiment is preferably also connected with reference voltage input circuit 15, user is received
The reference voltage being manually entered, and send it to comparison circuit 13, comparison circuit 13 by the electrical leakage voltage after rectifying and wave-filtering with
The reference voltage of reception is compared, such a embodiment, and flexibility is strong, and user rule of thumb can join with detection scene change
Examine voltage.
As an embodiment of the present embodiment, output circuit 14 shows comparative result, alarm bag by alarm
Include some alarm sounds；Compared result is sorted out, and the comparative result after classification is corresponding with alarm sound progress.Specifically
For：
When electrical leakage voltage be active voltage, and when the electrical leakage voltage after rectifying and wave-filtering be more than or equal to reference voltage when, report
Alert device exports the first alarm sound；When the electrical leakage voltage after rectifying and wave-filtering is less than reference voltage, alarm output second is alarmed
Sound.
Active voltage can drive electrical equipment to work, therefore, and when electric leakage is active voltage, knot is compared in different classification
Fruit is exported by the alarm sound of different alarms.Meanwhile, voltmeter displays that electrical leakage voltage value.
Reactive voltage can not drive electrical equipment to work, therefore, and when electrical leakage voltage is reactive voltage, alarm is in non-
Working condition, but now voltmeter has electrical leakage voltage value.
It should be noted that when in transmission line of electricity without electric leakage, voltmeter no-voltage value, while alarm also alarm free sound
Sound.
In addition, the output circuit 14 of the present embodiment also includes indicator lamp, the state of indicator lamp and the alarm sound of alarm
Correspondence, be specially：
When electric leakage is active voltage, and when the electrical leakage voltage after rectifying and wave-filtering is more than or equal to reference voltage, alarm
The alarm sound of device is the first alarm sound, and now indicator lamp shows the first color；Electrical leakage voltage after rectifying and wave-filtering is small
When reference voltage, alarm exports the second alarm sound, and now indicator lamp shows second of color.
When electric leakage is reactive voltage, alarm is in off working state, and indicator lamp is also at off working state, voltmeter
Show electrical leakage voltage value.
When transmission line of electricity or electrical equipment are without electric leakage, alarm, indicator lamp are in off working state, while voltmeter
No-voltage value.
The first alarm sound in the present embodiment can be distinguished with the second alarm sound by frequency or broadcasting content,
The present embodiment is preferably distinguished by frequency, is specially：The frequency of first alarm sound is higher than the second alarm sound.
Embodiment 2
One kind is present embodiments provided to leak electricity pressure tester, including the over-pressed test circuit 1 of the electric leakage described in embodiment 1.
As shown in figure 5, electric leakage in the present embodiment pressure tester also include display screen 2, the display for electrical leakage voltage.
The present embodiment preferably also includes reference voltage input circuit, for input reference voltage, reference voltage input circuit
Staff can be allow rule of thumb to be configured with detection scene to reference voltage.
The pressure tester provided in an embodiment of the present invention that leaked electricity, the over-pressed test circuit of electric leakage provided with above-described embodiment has
There is identical technical characteristic, so can also solve identical technical problem, reach identical technique effect.
As shown in fig. 6, present embodiments providing a kind of application method for the tester that leaked electricity, comprise the following steps：
S1. suitable voltage gear is selected according to power utilization environment.
Gear voltage in the present embodiment is preferably but not limited to 2V, 127V, 220V, 380V, 660V, 1140V and 1250V.
S2. black line is connected with ground wire, red line is put at detection of electrical leakage.
As shown in figure 3, black line at B is connected with ground wire, A ends red line is put at detection of electrical leakage.Electric leakage in this step
It can be the sense of such as relay at the detection of electrical leakage of transmission line of electricity or at the detection of electrical leakage of electrical equipment at detection
Coil or switch is answered to be possible to electric leakage, therefore this is likely to become at the detection of electrical leakage described in the present embodiment at two.
S3. connect circuit, and according to the output information of output circuit, judge electric leakage type, and with the presence or absence of leaking electricity
Pressure.
When alarm sends the first alarm sound, indicator lamp is red, then illustrates electric leakage for active voltage, and overvoltage.This
When in time corresponding measure should be taken to repair it.
When alarm sends the second alarm sound, indicator lamp is yellow, then explanation electric leakage is active voltage, without overvoltage.
When alarm, indicator lamp are in off working state, and voltmeter has registration, and it is reactive voltage to illustrate electric leakage.
When alarm, indicator lamp are in off working state, and voltmeter then illustrates no electrical leakage voltage also without registration.
In the description of the embodiment of the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " company
Connect " it should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or it is integrally connected；It can be machine
Tool is connected or electrically connected；Can be joined directly together, can also be indirectly connected to by intermediary, can be two members
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
If the function is realized using in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
Finally it should be noted that：Embodiment described above, is only the embodiment of the present invention, to illustrate the present invention
Technical scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those within the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of technical scheme of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. the over-pressed test circuit of one kind electric leakage, it is characterised in that including：It is transforming circuit, current rectifying and wave filtering circuit, comparison circuit, defeated
Go out circuit and voltmeter；
The transforming circuit is used to carry out transformation to electrical leakage voltage and exported to the current rectifying and wave filtering circuit；
The current rectifying and wave filtering circuit is used to carry out rectifying and wave-filtering to the electrical leakage voltage after transformation；
The comparison circuit is used to the electrical leakage voltage after rectifying and wave-filtering and reference voltage being compared, and comparative result is exported
To the output circuit；
The output circuit shows the comparative result；
The voltmeter is arranged at the transforming circuit, the current rectifying and wave filtering circuit, the comparison circuit or the output circuit
Input.
2. the over-pressed test circuit of electric leakage according to claim 1, it is characterised in that described also including gear selection circuit
Electrical leakage voltage is inputted after the gear selection circuit to the transforming circuit.
3. the over-pressed test circuit of electric leakage according to claim 2, it is characterised in that the input of the gear selection circuit
It is also associated with fuse.
4. the over-pressed test circuit of electric leakage according to claim 3, it is characterised in that the gear electricity of the gear selection circuit
Briquetting is included：2V, 127V, 220V, 380V, 660V, 1140V and 1250V.
5. the over-pressed test circuit of electric leakage according to claim 1, it is characterised in that the current rectifying and wave filtering circuit includes bridge-type
Rectification circuit, and the π type filter circuits connected with the bridge rectifier, and the π types filter circuit connects the ratio
Compared with circuit.
6. the over-pressed test circuit of electric leakage according to claim 1, it is characterised in that the output circuit is aobvious by alarm
Show the comparative result, the alarm is preset with several alarm sound；
The comparative result is sorted out, and the comparative result after classification is corresponding with alarm sound progress.
7. the over-pressed test circuit of electric leakage according to claim 6, it is characterised in that when the electrical leakage voltage is active electricity
Pressure, and when the electrical leakage voltage after the rectifying and wave-filtering is more than or equal to the reference voltage, the alarm output first is reported
Alert sound；
When the electrical leakage voltage after the rectifying and wave-filtering is less than the reference voltage, the alarm exports the second alarm sound.
8. the over-pressed test circuit of electric leakage according to claim 7, it is characterised in that when the electrical leakage voltage is reactive voltage
When, the alarm is in off working state.
9. the over-pressed test circuit of electric leakage according to claim 8, it is characterised in that the output circuit also includes indicating
Lamp, the state of the indicator lamp is corresponding with the alarm sound of the alarm.
The pressure tester 10. one kind was leaked electricity, it is characterised in that including the electric leakage overvoltage test described in claim any one of 1-9
Circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306652.1A CN107015100A (en) | 2017-05-04 | 2017-05-04 | The over-pressed test circuit of electric leakage and the pressure tester that leaked electricity |
| PCT/CN2017/090056 WO2018201593A1 (en) | 2017-05-04 | 2017-06-26 | Leakage overvoltage test circuit, leakage overvoltage tester and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306652.1A CN107015100A (en) | 2017-05-04 | 2017-05-04 | The over-pressed test circuit of electric leakage and the pressure tester that leaked electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107015100A true CN107015100A (en) | 2017-08-04 |
Family
ID=59449010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710306652.1A Pending CN107015100A (en) | 2017-05-04 | 2017-05-04 | The over-pressed test circuit of electric leakage and the pressure tester that leaked electricity |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107015100A (en) |
| WO (1) | WO2018201593A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006148990A (en) * | 2004-11-16 | 2006-06-08 | Fuji Electric Fa Components & Systems Co Ltd | Leakage detecting circuit |
| CN201584764U (en) * | 2009-12-04 | 2010-09-15 | 无锡华阳科技有限公司 | Pulse DC current leakage protection device |
| CN201699389U (en) * | 2010-06-24 | 2011-01-05 | 王赵 | Pulsating direct-current electricity-leakage and overvoltage protection device for electricity-leakage protection switch |
| CN207067293U (en) * | 2017-05-04 | 2018-03-02 | 中领世能（天津）科技有限公司 | Over-pressed test circuit of leaking electricity and the pressure tester that leaked electricity |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364688B (en) * | 2012-03-30 | 2017-05-10 | 中家院（北京）检测认证有限公司 | Three-jack socket electric leakage detection circuit |
-
2017
- 2017-05-04 CN CN201710306652.1A patent/CN107015100A/en active Pending
- 2017-06-26 WO PCT/CN2017/090056 patent/WO2018201593A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006148990A (en) * | 2004-11-16 | 2006-06-08 | Fuji Electric Fa Components & Systems Co Ltd | Leakage detecting circuit |
| CN201584764U (en) * | 2009-12-04 | 2010-09-15 | 无锡华阳科技有限公司 | Pulse DC current leakage protection device |
| CN201699389U (en) * | 2010-06-24 | 2011-01-05 | 王赵 | Pulsating direct-current electricity-leakage and overvoltage protection device for electricity-leakage protection switch |
| CN207067293U (en) * | 2017-05-04 | 2018-03-02 | 中领世能（天津）科技有限公司 | Over-pressed test circuit of leaking electricity and the pressure tester that leaked electricity |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018201593A1 (en) | 2018-11-08 |
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Application publication date: 20170804 |