CN106571617B - A kind of earth leakage protective device that can carry out detection of electrical leakage automatically - Google Patents
A kind of earth leakage protective device that can carry out detection of electrical leakage automatically Download PDFInfo
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- CN106571617B CN106571617B CN201610901138.8A CN201610901138A CN106571617B CN 106571617 B CN106571617 B CN 106571617B CN 201610901138 A CN201610901138 A CN 201610901138A CN 106571617 B CN106571617 B CN 106571617B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
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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
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses the earth leakage protective devices that one kind can carry out detection of electrical leakage automatically; including buckle releaser main hook body, buckle releaser auxiliary hook body, iron core A, iron core B, iron core C and central controller; the middle part of buckle releaser main hook body is equipped with movable axis; bottom on the left of its buckle releaser main hook body is equipped with buckle releaser auxiliary hook body, and the outer surface in the middle part of buckle releaser auxiliary hook body is from left to right equidistant to be equipped with three arc of closure.The present invention passes through the iron block and spring that are arranged on buckle releaser main hook body; and the permanent magnets being arranged at the both ends of buckle releaser auxiliary hook body; iron core A, iron core B and the iron core C being equipped with; and with the conducting wire two, conducting wire seven and the conducting wire six that are wound respectively on iron core A, iron core B and iron core C; zero sequence current mutual inductor, central controller, current-controlled switch A, commutator A, commutator B, current-controlled switch B and the current-controlled switch C being equipped with again, so that the earth leakage protective device has achieved the effect that self-timing carries out detection of electrical leakage.
Description
Technical field
The present invention relates to safety utilization of electric power technical field, specially a kind of earth leakage protective that can carry out detection of electrical leakage automatically
Device.
Background technique
Earth leakage protective device is a kind of electric safety device, using very extensive in low-voltage circuit.When generation electric leakage and touching
When electric, if reach current value as defined in protector, earth leakage protective device will act immediately, cut off the power, protection the person and
The safety of equipment.A test button is equipped on its earth leakage protective device simultaneously, the principle of test button is simulation electric leakage, if
Movement, illustrates that earth leakage protective device is normal.For the reliability for examining it to act, usually monthly to carry out testing primary.
But it is existing currently, earth leakage protective device is operated by manpower, in China, though it is every
Family's each household is equipped with earth leakage protective device, but people periodically carry out earth leakage protective device electric leakage inspection and are not concerned with, and some is even
From after earth leakage protective device installation, detection of electrical leakage operation is never actively carried out, it is this kind of not focus on or ignore earth leakage protective device electric leakage
The viewpoint or thought of detection have serious security risk for household electricity.
Summary of the invention
The purpose of the present invention is to provide one kind can carry out the earth leakage protective device of detection of electrical leakage automatically, have can automatically into
The advantages of row detection of electrical leakage and warning alert function, solve earth leakage protective device in the prior art detection of electrical leakage need manually into
The problem of row operates, and since time interval is longer, can not carry out detection of electrical leakage on time.
To achieve the above object, the invention provides the following technical scheme: a kind of electric leakage that can carry out detection of electrical leakage automatically
Protector, including buckle releaser main hook body, buckle releaser auxiliary hook body, iron core A, iron core B, iron core C and central controller, the buckle releaser
The middle part of main hook body is equipped with movable axis, and the bottom on the left of buckle releaser main hook body is equipped with buckle releaser auxiliary hook body, the buckle releaser pair
Outer surface in the middle part of coupler body is from left to right equidistant to be equipped with three arc of closure, and three closure arc tops are separately connected with bottom end
Have N line, G line and a L line, the inner cavity at the buckle releaser auxiliary hook body both ends is equipped with permanent magnets, the buckle releaser main hook body right end it is interior
Chamber is equipped with iron block, and the top of buckle releaser main hook body right end is equipped with spring.
Horizontal be equipped on the outside of iron core A and iron core B, the iron core A twines respectively in the outside at the buckle releaser auxiliary hook body both ends
It is wound with conducting wire two, conducting wire seven is wound on the outside of the iron core B, the bottom of the iron block is equipped with iron core C, the iron core C vertically
Outside be wound with conducting wire six, conducting wire three and conducting wire four, three institutes are connected separately on the L line of three arc of closure bottom ends
It states and is connected separately with conducting wire one and conducting wire five on the N line of arc of closure bottom end, the middle part of the conducting wire one and conducting wire three is equipped with electricity
The top of flow control switch A, conducting wire one and conducting wire three is also connected with commutator A, and the both ends of the conducting wire two are connected to
The output input of commutator A, the middle part of the conducting wire three and is also in series between commutator A and current-controlled switch A
The middle part of current control resistor A, the conducting wire four and conducting wire five is equipped with current-controlled switch B, conducting wire five and conducting wire four
Top is also connected with commutator B, the middle part of the conducting wire four and is also in series between commutator B and current-controlled switch B
Current control resistor B, the middle part of the conducting wire six are in series with current-controlled switch C, and one end of the conducting wire seven is connected to electric current
On conducting wire six between control switch C and commutator B, the other end of conducting wire seven is then connected to conducting wire six and opens far from current control
One end of C is closed, the both ends of the conducting wire six are connected to the output input of commutator B, the N of three arc of closure bottom ends
The outside of line, G line and L line is equipped with zero sequence current mutual inductor, and the zero sequence current mutual inductor is connected with center by mutual inductor
Controller.
The inside of the central controller includes data analysis module, and the output end of the data analysis module is electrical respectively
It is connected with central control module, information transmission modular and module of warning, the input terminal and zero-sequence current of data analysis module are mutual
Sensor is mutually electrically connected, and user's mobile phone and power equipment maintaining people has been electrically connected in the output end of the information transmission modular
Member's mobile phone, the input terminal of the central control module are also electrically connected with timing module, the central control module it is defeated
Outlet be electrically connected data analysis module, shutdown control module and reset control module, the shutdown control module and
Reset control module output end respectively with current-controlled switch A, commutator A, commutator B, current-controlled switch B and electric current control
System switch C phase is electrically connected.
Preferably, described buckle releaser auxiliary hook body left end exposed one end of permanent magnets is the pole N, and the permanent magnets of right end are exposed
One end outside is the pole S.
Preferably, contact, three arc of closure are equipped between the top and N line, G line and L line of three arc of closure
Bottom end and N line, G line and L line between be movable connection structure.
Preferably, the electric current maximum target flow value of the current control resistor A and current control resistor B is 150-200 milli
Peace.
Preferably, the N line is zero curve, and G line is ground line, and L line is firewire.
Preferably, the both ends of one end and movable axis far from buckle releaser main hook body of the spring are fixed on earth leakage protective
On the shell of device.
Preferably, the timing threshold that the timing module is set is 30 day.
Compared with prior art, beneficial effects of the present invention are as follows:
1, the iron block and spring of the invention by being arranged on buckle releaser main hook body, and at the both ends of buckle releaser auxiliary hook body
The permanent magnets of setting, the iron core A being equipped with, iron core B and iron core C, and with wound respectively on iron core A, iron core B and iron core C
Conducting wire two, conducting wire seven and conducting wire six, then be equipped with zero sequence current mutual inductor, central controller, current-controlled switch A,
Commutator A, commutator B, current-controlled switch B and current-controlled switch C so that the earth leakage protective device reached self-timing into
The effect of row detection of electrical leakage and leakage pre-alarm.
2, the iron block and spring of the invention by being arranged on buckle releaser main hook body, and at the both ends of buckle releaser auxiliary hook body
The permanent magnets of setting, the iron core A being equipped with, iron core B and iron core C, and with wound respectively on iron core A, iron core B and iron core C
Conducting wire two, conducting wire seven and conducting wire six, then be equipped with zero sequence current mutual inductor, central controller, current-controlled switch A,
Commutator A, commutator B, current-controlled switch B and current-controlled switch C, so that the earth leakage protective device, can be led by utilizing
The variation that line winds generated magnetic field and current flowing direction after iron core is powered influences magnetic field, so that buckle releaser main hook
Connection between body and buckle releaser auxiliary hook body carries out automatic open-close operation, by cooperating the data being arranged in central controller point
It analyses module, information transmission modular, module of warning, timing module, central control module, shutdown control module and resets control mould
Block enables the earth leakage protective device by timing module, central control module, shutdown control module and resets control module,
It realizes the automatic electric leakage checked operation of timing, is effectively operated instead of traditional desk checking, effectively increase the peace of residential electricity consumption
All risk insurance barrier eliminates electric leakage bring security risk, meanwhile, the information transmission modular and alarm module of setting can be effective right
User carries out warning alert, and notifies simultaneously to power equipment maintaining personnel, facilitates residential electricity consumption that can restore normally to make as early as possible
With being brought convenience for user, so that the detection of electrical leakage of effective solution earth leakage protective device in the prior art needs artificial carry out
The problem of operating, and since time interval is longer, detection of electrical leakage can not be carried out on time.
Detailed description of the invention
Fig. 1 is wire connection structure schematic diagram of the present invention；
Fig. 2 is control system block diagram of the present invention；
Fig. 3 is the operation principle schematic diagram when present invention is powered off；
Fig. 4 is the operation principle schematic diagram when present invention is resetted.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-4, a kind of earth leakage protective device that can carry out detection of electrical leakage automatically, including it is buckle releaser main hook body, de-
Device auxiliary hook body, iron core A, iron core B, iron core C and central controller are detained, the middle part of buckle releaser main hook body is equipped with movable axis, tripping
Bottom on the left of device main hook body is equipped with buckle releaser auxiliary hook body, and the outer surface in the middle part of buckle releaser auxiliary hook body is from left to right equidistant to be equipped with
Three arc of closure, three closure arc tops and bottom end are connected separately with N line, G line and L line, the top of three arc of closure and N line, G
It is equipped with contact between line and L line, is movable connection structure between the bottom end and N line, G line and L line of three arc of closure, N line is zero
Line, G line are ground line, and L line is firewire, and the inner cavity at buckle releaser auxiliary hook body both ends is equipped with permanent magnets, and buckle releaser auxiliary hook body left end is forever
The exposed one end of magnetic patch is the pole N, and the exposed one end of the permanent magnets of right end is the pole S, which can facilitate buckle releaser
Auxiliary hook body is moved under the action of magnetic force magnetic field, and arc of closure is enabled to have the function that control electricity, buckle releaser main hook body are right
The inner cavity at end is equipped with iron block, and the top of buckle releaser main hook body right end is equipped with spring, the one end of spring far from buckle releaser main hook body,
And the both ends of movable axis are fixed on the shell of earth leakage protective device.
The outside at buckle releaser auxiliary hook body both ends is horizontal respectively to be equipped with iron core A and iron core B, is wound with conducting wire on the outside of iron core A
Conducting wire seven is wound on the outside of two, iron core B, the bottom of iron block is equipped with iron core C vertically, it is wound with conducting wire six on the outside of iron core C, three
It is connected separately with conducting wire three and conducting wire four on the L line of root arc of closure bottom end, is connected separately on the N line of three arc of closure bottom ends
The middle part of conducting wire one and conducting wire five, conducting wire one and conducting wire three is equipped with current-controlled switch A, the top of conducting wire one and conducting wire three
It is also connected with commutator A, the both ends of conducting wire two are connected to the output input of commutator A, the middle part of conducting wire three and are located at
Also it is in series with current control resistor A between commutator A and current-controlled switch A, the middle part of conducting wire four and conducting wire five is equipped with electricity
The top of flow control switch B, conducting wire five and conducting wire four is also connected with commutator B, the middle part of conducting wire four and be located at commutator B and
The electric current that current control resistor B, current control resistor A and current control resistor B are also in series between current-controlled switch B is maximum
Target flow value is 150-200 milliamperes, and such setting can effectively avoid conducting wire two, conducting wire seven and conducting wire six, after powered up
Because electric current is excessive conducting wire two, conducting wire seven and conducting wire six are blown, plays safety protection function, the middle part series connection of conducting wire six
There is current-controlled switch C, one end of conducting wire seven is connected on the conducting wire six between current-controlled switch C and commutator B, conducting wire
Seven other end is then connected to the one end of conducting wire six far from current-controlled switch C, and the both ends of conducting wire six are connected to commutator B
Output input, the outside of the N lines of three arc of closure bottom ends, G line and L line is equipped with zero sequence current mutual inductor, and zero-sequence current is mutual
Sensor is connected with central controller by mutual inductor.
The inside of central controller includes data analysis module, during the output end of data analysis module has been electrically connected
Control module, information transmission modular and module of warning are entreated, the input terminal and zero sequence current mutual inductor of data analysis module are mutually electric
Property connection, user's mobile phone and power equipment maintaining personnel's mobile phone has been electrically connected in the output end of information transmission modular,
The input terminal of central control module is also electrically connected with timing module, and the timing threshold that timing module is set is 30 day, so that should
Earth leakage protective device can carry out automatic electric leakage verification test with 30 days for the period, and the output end of central control module electrically connects respectively
It is connected to data analysis module, shutdown control module and resets control module, shutdown control module and the output for resetting control module
End is electrically connected with current-controlled switch A, commutator A, commutator B, current-controlled switch B and current-controlled switch C phase respectively.
The present invention is set by the iron block and spring that are arranged on buckle releaser main hook body, and at the both ends of buckle releaser auxiliary hook body
The permanent magnets set, the iron core A being equipped with, iron core B and iron core C, and with wind respectively on iron core A, iron core B and iron core C
Conducting wire two, conducting wire seven and conducting wire six, then be equipped with zero sequence current mutual inductor, central controller, current-controlled switch A, change
To device A, commutator B, current-controlled switch B and current-controlled switch C, so that the earth leakage protective device, it can be by utilizing conducting wire
The variation for winding generated magnetic field and current flowing direction after iron core is powered influences magnetic field, so that buckle releaser main hook body
Connection between buckle releaser auxiliary hook body carries out automatic open-close operation, by cooperating the data being arranged in central controller to analyze
Module, information transmission modular, module of warning, timing module, central control module, shutdown control module and reset control module,
Enable the earth leakage protective device by timing module, central control module, shutdown control module and reset control module, realizes
The automatic electric leakage checked operation of timing, effectively operates instead of traditional desk checking, and the safety for effectively increasing residential electricity consumption is protected
Barrier eliminates electric leakage bring security risk, meanwhile, the information transmission modular and alarm module of setting can be effectively to users
Warning alert is carried out, and is notified simultaneously to power equipment maintaining personnel, facilitates residential electricity consumption that can restore normal use as early as possible, is
User brings convenience.
This can carry out the earth leakage protective device of detection of electrical leakage automatically, and when carrying out automatic electric leakage inspection, timing module is in
Control module transmitting simulation electric leakage information is entreated, central control module first (resets control module to shutdown control module transmitting instruction
It is inoperative), shutdown control module is respectively to current-controlled switch A, commutator A, commutator B, current-controlled switch B and electric current control
Switch C transmitting instruction is made, so that current-controlled switch A, current-controlled switch B and current-controlled switch C closure, so that conducting wire
One, the circuit of closure is formed between conducting wire two and conducting wire three and between conducting wire four, conducting wire five, conducting wire six and conducting wire seven, so that
Conducting wire two, conducting wire seven and conducting wire six after powered up, make to form magnetic field around iron core A, iron core B and iron core C, fixed according to ampere
Then, the electric current for controlling the current output terminal output of commutator A is flowed from the right end of iron core A to left end, so that the right end magnetic of iron core A
The extremely pole S, left end magnetic pole are the pole N, while the electric current that the current output terminal for controlling commutator B exports is respectively from the left end of iron core B
It flows to right end, and is flowed from the bottom end of iron core C to top, so that the left end magnetic pole of iron core B is the pole N, right end magnetic pole is S
Pole, the top pole of iron core C are the pole N, and bottom end magnetic pole is the pole S, mutually exclusive according to homonymous magnetic pole, what synonyms pole attracted each other
Principle rotates clockwise, and simultaneously draw spring so that buckle releaser main hook body is under the influence of a magnetic field by the center of circle of movable axis
Long, buckle releaser auxiliary hook body moves under the action of synonyms pole attracts each other mutually exclusive with homonymous magnetic pole, to the left so that closing
The contact on arc and the contact separation on N line, G line and L line are closed, achievees the effect that power-off, is powered off if can not be successfully, center
Control module transmits information to data analysis module, from data analysis module control information transmission modular respectively to the mobile electricity of user
Words and power equipment maintaining personnel mobile phone issue information, while the warning lamp on earth leakage protective device is bright under the control for module of warning
It rises, if smoothly power-off is resetted from central control module to control module transmitting instruction (power-off control module is inoperative) is resetted
Control module is transmitted to current-controlled switch A, commutator A, commutator B, current-controlled switch B and current-controlled switch C and is instructed,
So that current-controlled switch A and current-controlled switch B closure, current-controlled switch C is disconnected, so that conducting wire one, conducting wire two and leading
The circuit of closure is formed between line three and between conducting wire four, conducting wire five and conducting wire seven, so that conducting wire two and conducting wire seven are being powered
Afterwards, make to form magnetic field around iron core A and iron core B, according to Ampere's law, control the electricity of the current output terminal output of commutator A
Stream is flowed from the left end of iron core A to right end, so that the right end magnetic pole of iron core A is the pole N, left end magnetic pole is the pole S, while controlling commutation
The electric current of the current output terminal output of device B is flowed from the right end of iron core B to left end, so that the left end magnetic pole of iron core B is the pole N, it is right
End magnetic pole is the pole S, according to the principle that homonymous magnetic pole is mutually exclusive, synonyms pole attracts each other, so that buckle releaser auxiliary hook body is in magnetic
It is moved to the right under the action of, simultaneously because conducting wire six is not formed into a loop on iron core C, so that the both ends of iron core C do not have
Standby magnetic pole, therefore buckle releaser main hook body is rotated counterclockwise centered on movable axis under the action of the spring, so that buckle releaser
Main hook body and buckle releaser auxiliary hook body re-connect, so that the contact on arc of closure and the contact on N line, G line and L line are again
In conjunction with, achieve the effect that Power resumption, when non-electric leakage is examined, when zero sequence current mutual inductor senses zero-sequence current,
The information of monitoring is by after the analysis of data analysis module, respectively to central control module, information transmission modular and module of warning,
So that central control module to power-off control module send instruct, carry out power down process, while information transmission modular respectively to
Family mobile phone and power equipment maintaining personnel's mobile phone issue information, and the warning lamp on earth leakage protective device is in the control of module of warning
Under light.
In summary: this can carry out the earth leakage protective device of detection of electrical leakage automatically, by being arranged on buckle releaser main hook body
Iron block and spring, and buckle releaser auxiliary hook body both ends be arranged permanent magnets, the iron core A being equipped with, iron core B and iron core
C, and with the conducting wire two, conducting wire seven and the conducting wire six that are wound respectively on iron core A, iron core B and iron core C, then the zero sequence being equipped with
Current transformer, central controller, current-controlled switch A, commutator A, commutator B, current-controlled switch B and current control are opened
C is closed, so that the earth leakage protective device has reached the effect that self-timing carries out detection of electrical leakage and leakage pre-alarm, thus effectively
The detection of electrical leakage needs for solving earth leakage protective device in the prior art are manually operated, and since time interval is longer, no
The problem of capable of carrying out detection of electrical leakage on time.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. one kind can carry out the earth leakage protective device of detection of electrical leakage, including buckle releaser main hook body, buckle releaser auxiliary hook body, iron core automatically
A, iron core B, iron core C and central controller, it is characterised in that: the middle part of the buckle releaser main hook body is equipped with movable axis, tripping
Bottom on the left of device main hook body is equipped with buckle releaser auxiliary hook body, and the outer surface in the middle part of the buckle releaser auxiliary hook body is from left to right equidistant
Equipped with three arc of closure, three closure arc tops and bottom end are connected separately with N line, G line and L line, the buckle releaser auxiliary hook
The inner cavity at body both ends is equipped with permanent magnets, and the inner cavity of the buckle releaser main hook body right end is equipped with iron block, buckle releaser main hook body right end
Top be equipped with spring；
Horizontal be equipped on the outside of iron core A and iron core B, the iron core A is wound with respectively in the outside at the buckle releaser auxiliary hook body both ends
Conducting wire two is wound with conducting wire seven on the outside of the iron core B, and the bottom of the iron block is equipped with iron core C vertically, and the iron core C's is outer
Side is wound with conducting wire six, and conducting wire three and conducting wire four are connected separately on the L line of three arc of closure bottom ends, is closed described in three
It closes and is connected separately with conducting wire one and conducting wire five on the N line of arc bottom end, the middle part of the conducting wire one and conducting wire three is equipped with electric current control
The top of system switch A, conducting wire one and conducting wire three is also connected with commutator A, and the both ends of the conducting wire two are connected to commutation
The output input of device A, the middle part of the conducting wire three and is also in series with electric current between commutator A and current-controlled switch A
The middle part of control resistor A, the conducting wire four and conducting wire five is equipped with current-controlled switch B, the top of conducting wire five and conducting wire four
It is also connected with commutator B, the middle part of the conducting wire four and is also in series with electric current between commutator B and current-controlled switch B
Resistor B is controlled, the middle part of the conducting wire six is in series with current-controlled switch C, and one end of the conducting wire seven is connected to current control
On conducting wire six between switch C and commutator B, the other end of conducting wire seven is then connected to conducting wire six far from current-controlled switch C
One end, the both ends of the conducting wire six are connected to the output input of commutator B, the N line of three arc of closure bottom ends,
The outside of G line and L line is equipped with zero sequence current mutual inductor, and the zero sequence current mutual inductor is connected with central control by mutual inductor
Device；
The inside of the central controller includes data analysis module, and the output end of the data analysis module is electrically connected
There are central control module, information transmission modular and module of warning, the input terminal and zero sequence current mutual inductor of data analysis module
It is mutually electrically connected, user's mobile phone has been electrically connected in the output end of the information transmission modular and power equipment maintaining personnel move
Mobile phone, the input terminal of the central control module are also electrically connected with timing module, the output end of the central control module
Data analysis module, shutdown control module has been electrically connected and has resetted control module, the shutdown control module and reset
The output end of control module is opened with current-controlled switch A, commutator A, commutator B, current-controlled switch B and current control respectively
It closes C phase to be electrically connected, described buckle releaser auxiliary hook body left end exposed one end of permanent magnets is the pole N, and the permanent magnets of right end are exposed
One end outside is the pole S, and contact, three arc of closure are equipped between the top and N line, G line and L line of three arc of closure
Bottom end and N line, G line and L line between be movable connection structure.
2. the earth leakage protective device that one kind according to claim 1 can carry out detection of electrical leakage automatically, it is characterised in that: described
The electric current maximum target flow value of current control resistor A and current control resistor B is 150-200 milliamperes.
3. the earth leakage protective device that one kind according to claim 1 can carry out detection of electrical leakage automatically, it is characterised in that: described
N line is zero curve, and G line is ground line, and L line is firewire.
4. the earth leakage protective device that one kind according to claim 1 can carry out detection of electrical leakage automatically, it is characterised in that: described
The both ends of spring one end and movable axis far from buckle releaser main hook body are fixed on the shell of earth leakage protective device.
5. the earth leakage protective device that one kind according to claim 1 can carry out detection of electrical leakage automatically, it is characterised in that: described
The timing threshold that timing module is set is 30 day.
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| CN201610901138.8A CN106571617B (en) | 2016-10-14 | 2016-10-14 | A kind of earth leakage protective device that can carry out detection of electrical leakage automatically |
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| CN201610901138.8A CN106571617B (en) | 2016-10-14 | 2016-10-14 | A kind of earth leakage protective device that can carry out detection of electrical leakage automatically |
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| CN106571617B true CN106571617B (en) | 2019-02-05 |
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| CN201194327Y (en) * | 2008-04-14 | 2009-02-11 | 黄华道 | Leakage detecting protection circuit |
| CN102306924A (en) * | 2011-09-14 | 2012-01-04 | 黄华道 | Leakage detecting protection circuit capable of periodically automatically detecting function integrity |
| CN103219702A (en) * | 2013-03-21 | 2013-07-24 | 温州市万盛电器有限公司 | Electric leakage detection protection circuit capable of performing timed self-detection |
| CN204464949U (en) * | 2015-03-20 | 2015-07-08 | 张家港市佰瑞普电器科技有限公司 | A kind of automatic monitoring circuit of earth fault earth leakage protective device |
| CN205122517U (en) * | 2015-10-27 | 2016-03-30 | 左冬冬 | Low -voltage circuit breaker |
| CN206099301U (en) * | 2016-10-14 | 2017-04-12 | 无锡市海升电子科技有限公司 | Leakage detection's earth -leakage protector can carry out automatically |
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| CN106571617A (en) | 2017-04-19 |
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