CN106298380A - There is the chopper of instruction leakage function - Google Patents
There is the chopper of instruction leakage function Download PDFInfo
- Publication number
- CN106298380A CN106298380A CN201510275756.1A CN201510275756A CN106298380A CN 106298380 A CN106298380 A CN 106298380A CN 201510275756 A CN201510275756 A CN 201510275756A CN 106298380 A CN106298380 A CN 106298380A
- Authority
- CN
- China
- Prior art keywords
- electric leakage
- rod
- overcurrent
- iron core
- chopper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/046—Means for indicating condition of the switching device exclusively by position of operating part, e.g. with additional labels or marks but no other movable indicators
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- Breakers (AREA)
Abstract
A kind of chopper with instruction leakage function, it is characterised in that this chopper includes: indicating mechanism and double dropout post rod mechanism;Described indicating mechanism includes the indication piece that leaks electricity, and is provided with electric leakage labelling;When there being leak current fault to occur, under the effect of electromagnetic force, electric leakage dropout push rod included by described pair of dropout post rod mechanism is ejected, thus release the locking to described electric leakage indication piece, described electric leakage indication piece rotates under the effect of the electric leakage indication piece spring coordinated with it together with circuit breaker handle, thus demonstrate the generation with instruction leak current fault of the electric leakage labelling on described electric leakage indication piece, now this chopper is off.
Description
Technical field
The present invention relates to a kind of chopper, in particular it relates to one has instruction leakage function
Chopper.
Background technology
In the prior art, with generally only a kind of indicating fault of circuit breaker of creepage protection function
Function, i.e. occurs various fault (short circuit, transship, leak electricity) all can indicate, and this makes the client cannot
Quickly understand the concrete reason broken down, consequently, it is possible to make time lengthening of fixing a breakdown.
Therefore, a kind of chopper that can indicate that fault type is needed in the art especially.
Summary of the invention
In order to solve defect of the prior art, the present invention provides a kind of open circuit with creepage protection function
Device.The present invention distinguishes different faults class by arranging the most proprietary dropout push rod for different faults
Type, particularly has individually electric leakage labelling instruction fault type at the product when there being electric leakage to occur, thus
Client can be allowed quickly to know the type that fault occurs.
According to an aspect of the present invention, it is provided that a kind of chopper with instruction leakage function, its feature
Being, this chopper includes: indicating mechanism and double dropout post rod mechanism;Described indicating mechanism includes electric leakage
Indication piece, is provided with electric leakage labelling;When there being leak current fault to occur, under the effect of electromagnetic force,
Electric leakage dropout push rod included by described pair of dropout post rod mechanism is ejected, thus releases and refer to described electric leakage
Show the locking of part, described electric leakage indication piece coordinate with it electric leakage indication piece spring effect under with open circuit
Device handle rotates together, thus demonstrates that the electric leakage labelling on described electric leakage indication piece is to indicate leak current fault
Generation, now this chopper is off.
Described indicating mechanism also includes securing rod, securing rod back-moving spring and reference test bar;In closed state,
Described securing rod locks described electric leakage indication piece;When there being leak current fault to occur, under the effect of electromagnetic force,
Electric leakage dropout push rod included in described pair of dropout post rod mechanism is ejected, thus promotes described securing rod
It is rotated up the locking releasing described securing rod with described electric leakage indication piece;In the off state, described survey
One end of bar locks described securing rod so that it cannot return to the position under closure state.
In the off state, along with described circuit breaker handle rotates towards the position under closure state, described
Reference test bar is released from the locking of described securing rod, and described securing rod is at the work of described securing rod back-moving spring
Returning to the position under closure state under with, described electric leakage indication piece returns to also with described circuit breaker handle
Position under closure state, described securing rod locks described electric leakage indication piece.
According to another aspect of the present invention, described pair of dropout post rod mechanism also includes overcurrent release top
Bar, overcurrent move iron core, the dynamic iron core of electric leakage and solenoid.
When there being leak current fault to occur, described electric leakage dropout push rod quilt under the actuating of iron core is moved in described electric leakage
Eject, so that circuit breaker trip unlocks described electric leakage indication piece to realize electric leakage instruction simultaneously.
When there being overcurrent fault to occur, described overcurrent release push rod moves the cause of iron core in described overcurrent
It is ejected under Dong, so that circuit breaker trip, but described overcurrent release push rod will not unlock described leakage
Electricity indication piece, thus without electric leakage labelling occur.
When there being leak current fault to occur, iron core motion is moved in the most described electric leakage, thus promotes it to be abutted against
Wherein one end of the dynamic iron core push rod of electric leakage, described electric leakage dropout top stem casing is located at described electric leakage and moves iron core push rod
The other end.
When there being overcurrent fault to occur, described overcurrent moves iron core motion, thus promotes it to be abutted against
Wherein one end of described overcurrent release push rod.
Described overcurrent release push rod has overcurrent release push-rod hole, and iron core push rod quilt is moved in described electric leakage
Insert in this overcurrent release push-rod hole and can move, in institute in this overcurrent release push-rod hole
State the dropout push rod that leaks electricity described in the other end of overcurrent release push rod and be accommodated in this overcurrent release push rod
In through hole and can move in this overcurrent release push-rod hole.
Described pair of dropout post rod mechanism also includes the support with rack ventilating hole, described overcurrent release push rod
Through this rack ventilating hole, move iron core and described overcurrent is moved and being arranged the dynamic ferrum of electric leakage between iron core in described electric leakage
Core back-moving spring, moves at described support and described overcurrent and arranges overcurrent between iron core and move plunger return bullet
Spring.
The solenoid that the described pair of dropout post rod mechanism includes moves iron core and described round described overcurrent
Support is arranged.
Based on the present invention, designed by distinctive double-pole, such that it is able to different faults type by not
Same course of action shows:
1) when there being leak current fault to occur, electric leakage dropout push rod is single movement under the dynamic iron core of electric leakage drives,
Above-mentioned indicating mechanism is utilized to realize electric leakage instruction while making circuit breaker trip.
2) when simply overcurrent fault occurs, only overcurrent release push rod moves iron core in overcurrent
Drive lower action so that circuit breaker trip, but electric leakage indicating mechanism will not be unlocked, do not have electric leakage
Instruction.
Designed by two special push rods, thus realize product and individually there is electric leakage instruction function.
So far, in order to present invention detailed description in this can be better understood, and for this
The bright contribution to prior art can preferably be realized, and the disclosure outlines this most widely
Inventive embodiment.Certainly, embodiments of the present invention are described below and will be formed appended
Claimed subject matter.
Before explaining embodiments of the invention in detail, it will be appreciated that the present invention in its application not
It is restricted to propose in the following description or the details of structure illustrated in the accompanying drawings and the configuration of parts.
The present invention can have the embodiment in addition to those of description, and can be implemented in various ways and enter
OK.Furthermore, it will be appreciated that the wording used at this and term and summary are for purposes of description,
It is not considered as determinate.
Similarly, it would be recognized by those skilled in the art that the design that the disclosure is based on can easily be used
Make to design the basis of other structure, for implementing several purposes of the present invention.It is important, therefore, that institute
Attached claim will be understood that and includes such equivalent structure, as long as they are without departing from the essence of the present invention
And scope.
Accompanying drawing explanation
By figure below those skilled in the art will present invention may be better understood, and more can be clear
Embody advantages of the present invention to Chu.Accompanying drawing described herein only for the illustration purpose of selected embodiment,
Rather than the most possible embodiment and be intended to not limit the scope of the present invention.
Fig. 1 illustrates that the chopper with instruction leakage function according to a preferred embodiment of the invention is in and closes
Conjunction state;
Fig. 2 illustrates that the chopper with instruction leakage function according to a preferred embodiment of the invention is in disconnected
Open state;
Fig. 3 illustrates that one end locking securing rod of reference test bar makes it cannot return to state when closing;
Fig. 4 illustrates the double de-of the chopper with instruction leakage function according to a preferred embodiment of the invention
The sectional view of button post rod mechanism;
Fig. 5 A, 5B and 5C illustrate that double dropout post rod mechanisms according to a preferred embodiment of the invention are respectively
It is in closure state, overcurrent fault state and leak current fault state.
Detailed description of the invention
Below with reference to accompanying drawing to being described in detail according to a preferred embodiment of the invention.By accompanying drawing with
And corresponding explanatory note, it will be understood to those of skill in the art that feature and the advantage of the present invention.
Fig. 1 illustrates that the chopper with instruction leakage function according to a preferred embodiment of the invention is in and closes
Conjunction state, wherein this chopper includes indicating mechanism 1 and double dropout post rod mechanism 7;Described indicating mechanism
1 includes the indication piece 2 that leaks electricity, and is provided with electric leakage labelling 2-1.In closed state, due to instruction machine
Leak electricity described in securing rod 3 abutting contact of structure 1 indication piece 2, so that described electric leakage indication piece 2 is with disconnected
Road device handle is in the close position, and then described electric leakage labelling 2-1 will not show.
When there being leak current fault to occur, as in figure 2 it is shown, under the effect of electromagnetic force, described double tops of threading off
Electric leakage dropout push rod 4 included by linkage 7 is ejected, the movement progress securing rod 3 of push rod 4, from
And the bar 3 locking to described electric leakage indication piece 2 that unlocks, described electric leakage indication piece 2 is coordinating with it
Electric leakage indication piece spring (not shown) effect under rotate together with circuit breaker handle, described electric leakage refers to
Show that part 2 and circuit breaker handle are in open position, thus demonstrate the electric leakage on described electric leakage indication piece 2
Labelling 2-1 is to indicate the generation of leak current fault, and now this chopper is off.
As it is shown in figure 1, described indicating mechanism 1 also includes securing rod back-moving spring 5 and reference test bar 6;?
Under closure state, described securing rod 3 locks described electric leakage indication piece 2;When there being leak current fault to occur,
Under the effect of electromagnetic force, electric leakage dropout push rod 4 included in described pair of dropout post rod mechanism 7 is pushed up
Go out, thus promote described securing rod 3 to be rotated up the lock of described securing rod 3 and described electric leakage indication piece 2
Fixed releasing;In the off state, as shown in Figure 2,3, one end of described reference test bar 6 locks described lock
Fixed pole 3 is so that it cannot return to the position under closure state.
In the off state, along with described circuit breaker handle 1 rotates towards the position under closure state, institute
The locking stating reference test bar 6 and described securing rod 3 is released from, and described securing rod 3 resets at described securing rod
Returning to the position under closure state under the effect of spring 5, described electric leakage indication piece 2 is also with described disconnected
Road device handle returns to the position under closure state, and described securing rod 3 locks described electric leakage indication piece 2.
According to another aspect of the present invention, such as Fig. 4, having according to a preferred embodiment of the invention is shown
The sectional view of double dropout post rod mechanisms of the chopper of instruction leakage function, wherein said pair of dropout push rod machine
Structure 7 also includes that overcurrent release push rod 8, overcurrent move iron core 9, the dynamic iron core 10 of electric leakage and electromagnetic wire
Circle 15.
When there being leak current fault to occur, described electric leakage dropout push rod 4 moves the cause of iron core 10 in described electric leakage
It is ejected under Dong, so that circuit breaker trip unlocks described electric leakage indication piece 2 to realize electric leakage instruction simultaneously.
When there being overcurrent fault to occur, described overcurrent release push rod 8 moves iron core 9 in described overcurrent
Actuating under be ejected so that circuit breaker trip, but described overcurrent release push rod 8 will not unlock
Described electric leakage indication piece 2, thus without electric leakage labelling occur.
When there being leak current fault to occur, the most described electric leakage is moved iron core 10 and is moved, thus promote its institute against
The wherein one end of the dynamic iron core push rod 11 of electric leakage, described electric leakage dropout push rod 4 is set in described electric leakage
The other end of dynamic iron core push rod.
When there being overcurrent fault to occur, described overcurrent is moved iron core 9 and is moved, thus promote its institute against
The wherein one end of the described overcurrent release push rod 8.
Described overcurrent release push rod 8 has overcurrent release push-rod hole 8-1, and iron core is moved in described electric leakage
Push rod 11 is inserted in this overcurrent release push-rod hole 8-1 and at this overcurrent release push-rod hole
8-1 can move, held at the dropout push rod 4 that leaks electricity described in the other end of described overcurrent release push rod 8
It is contained in this overcurrent release push-rod hole 8-1 and can move in this overcurrent release push-rod hole 8-1
Dynamic.
Described pair of dropout post rod mechanism 7 also includes the support 12 with rack ventilating hole 12-1, described the most electric
Stream dropout push rod 8 through this rack ventilating hole 12-1, moves iron core 10 and described overcurrent is moved in described electric leakage
Electric leakage dynamic iron core return-spring 13 is set between iron core 9, moves ferrum at described support 12 and described overcurrent
Overcurrent is set between core 9 and moves iron core return-spring 14.
The solenoid 15 that the described pair of dropout post rod mechanism 7 includes moves iron core 9 round described overcurrent
Arrange with described support 12.
Fig. 5 A, 5B and 5C illustrate that double dropout post rod mechanisms according to a preferred embodiment of the invention are respectively
It is in closure state, overcurrent fault state and leak current fault state.
As shown in Figure 5A, when double dropout post rod mechanisms are in closure state, it is multiple that iron core is moved in described electric leakage
Position spring 13 and described overcurrent are moved iron core return-spring 14 and are in non-compressed state, and described electric leakage takes off
Button push rod 4 and described overcurrent release push rod 8 are in the position not being ejected.
As shown in Figure 5 B, when double dropout post rod mechanisms are in overcurrent fault state, described electric leakage is moved
Iron core 10 does not moves, and described overcurrent is moved iron core 9 and moved, and iron core return-spring 13 is moved in described electric leakage
It is in non-compressed state, but described overcurrent is moved iron core return-spring 14 and is in compressive state, described
Overcurrent moves the described overcurrent release push rod 8 that the athletic meeting of iron core 9 promotes it to be abutted against, thus institute
Stating overcurrent release push rod 8 to be ejected, and dropout push rod 4 position of leaking electricity keeps constant, described electric leakage takes off
Button push rod 4 will not promote securing rod 3, and then the bar 3 that cannot unlock is to described electric leakage indication piece 2
Locking, described electric leakage indication piece 2 cannot rotate to show electric leakage labelling 2-1.
As shown in Figure 5 C, when double dropout post rod mechanisms are in leak current fault state, ferrum is moved in described electric leakage
Core 10 moves, and described overcurrent is moved iron core 9 and do not moved, and described electric leakage is moved at iron core return-spring 13
In compressive state, but described overcurrent is moved iron core return-spring 14 and is in non-compressed state, described leakage
The athletic meeting of electronic iron core 10 promotes its described electric leakage abutted against to move iron core push rod 11, thus described
Electric leakage dropout push rod 4 is ejected, and described overcurrent release push rod 8 remains stationary as, and described electric leakage is threaded off
Push rod 4 promotes securing rod 3, and then the bar 3 locking to described electric leakage indication piece 2 that unlocks, described
Electric leakage indication piece 2 rotates thus is shown by electric leakage labelling 2-1.
Above in association with accompanying drawing, the present invention is described in detail, it can be seen that set by distinctive double-pole
Meter, the present invention can be shown different faults type by different course of action:
1) when there being leak current fault to occur, electric leakage dropout push rod is single movement under the dynamic iron core of electric leakage drives,
Above-mentioned indicating mechanism is utilized to realize electric leakage instruction while making circuit breaker trip.
2) when simply overcurrent fault occurs, only overcurrent release push rod moves iron core in overcurrent
Drive lower action so that circuit breaker trip, but electric leakage indicating mechanism will not be unlocked, do not have electric leakage
Instruction.
Designed by the two of the present invention special push rods, thus realize product and individually there is electric leakage indicated work
Energy.
With reference to specific embodiment, although the present invention is illustrated the most in the specification and illustrated in the drawings, but should
Work as understanding, in the case of without departing from the scope of the invention defined in claim, art
Personnel can make multiple change and the alternative many of element of multiple equivalent.And, have herein
Combination and the collocation of technical characteristic, element and/or function between body embodiment are the distinctest, therefore
According to these disclosure of thats, art personnel will appreciate that the technology in embodiment is special
Levy, element and/or function can optionally be incorporated in another specific embodiment, unless foregoing
There is other description.Additionally, according to the teachings of the present invention, in the scope without departing from present invention essence, suitable
Special situation or material is answered to may be made that many changes.Therefore, the present invention is not limited to accompanying drawing and is illustrated
Individual other specific embodiment, and conduct described in this description is at present for implementing contemplated by the present invention
The specific embodiment of preferred forms, and it is intended that include falling into description above and appended
All of embodiment in right.
Claims (11)
1. a chopper with instruction leakage function, it is characterised in that this chopper includes:
Indicating mechanism (1) and double dropout post rod mechanism (7);
Described indicating mechanism (1) includes the indication piece (2) that leaks electricity, and is provided with electric leakage labelling (2-1);
When there being leak current fault to occur, under the effect of electromagnetic force, described pair of dropout post rod mechanism (7)
Included electric leakage dropout push rod (4) is ejected, thus releases the lock to described electric leakage indication piece (2)
Fixed, described electric leakage indication piece (2) under the effect of the electric leakage indication piece spring coordinated with it with chopper
Handle rotates together, thus demonstrates that the electric leakage labelling (2-1) on described electric leakage indication piece (2) is to refer to
Showing the generation of leak current fault, now this chopper is off.
The chopper with instruction leakage function the most according to claim 1, it is characterised in that
Described indicating mechanism (1) also includes securing rod (3), securing rod back-moving spring (5) and reference test bar (6);
In closed state, described securing rod (3) locks described electric leakage indication piece (2);
When there being leak current fault to occur, under the effect of electromagnetic force, described pair of dropout post rod mechanism (7)
Electric leakage dropout push rod (4) included by is ejected, thus promotes described securing rod (3) to be rotated up
Release the locking of described securing rod (3) and described electric leakage indication piece (2);
In the off state, described reference test bar (6) one end lock described securing rod (3) so that its
The position under closure state cannot be returned to.
The chopper with instruction leakage function the most according to claim 2, it is characterised in that
In the off state, along with described circuit breaker handle rotates towards the position under closure state, described test
Bar (6) is released from the locking of described securing rod (3), and described securing rod (3) is at described securing rod
Returning to the position under closure state under the effect of back-moving spring (5), described electric leakage indication piece (2) is also
Along with described circuit breaker handle returns to the position under closure state, described securing rod (3) locks described leakage
Electricity indication piece (2).
The chopper with instruction leakage function the most according to claim 1, it is characterised in that
The described pair of dropout post rod mechanism (7) also include overcurrent release push rod (8), overcurrent move iron core (9),
The dynamic iron core (10) of electric leakage and solenoid (15).
The chopper with instruction leakage function the most according to claim 4, it is characterised in that
When there being leak current fault to occur, described electric leakage dropout push rod (4) moves the actuating of iron core (10) in described electric leakage
Under be ejected so that circuit breaker trip unlock simultaneously described electric leakage indication piece (2) with realize electric leakage instruction.
The chopper with instruction leakage function the most according to claim 5, it is characterised in that
When there being overcurrent fault to occur, described overcurrent release push rod (8) moves iron core (9) in described overcurrent
It is ejected under actuating, so that circuit breaker trip, but described overcurrent release push rod (8) will not unlock institute
State electric leakage indication piece (2), thus without electric leakage labelling occurs.
The chopper with instruction leakage function the most according to claim 4, it is characterised in that
When there being leak current fault to occur, iron core (10) motion is moved in the most described electric leakage, thus promotes it to be abutted against
Wherein one end of the dynamic iron core push rod (11) of electric leakage, described electric leakage dropout push rod (4) is set in described electric leakage and moves ferrum
The other end of core push rod (11).
The chopper with instruction leakage function the most according to claim 7, it is characterised in that
When there being overcurrent fault to occur, described overcurrent moves iron core (9) motion, thus promotes it to be abutted against
Wherein one end of described overcurrent release push rod (8).
The chopper with instruction leakage function the most according to claim 8, it is characterised in that
Described overcurrent release push rod (8) has overcurrent release push-rod hole (8-1), and iron core push rod is moved in described electric leakage
(11) it is inserted in this overcurrent release push-rod hole (8-1) and energy in this overcurrent release push-rod hole
Mobile, it is accommodated in this at the dropout push rod (4) that leaks electricity described in the other end of described overcurrent release push rod (8)
In overcurrent release push-rod hole (8-1) and can move in this overcurrent release push-rod hole.
The chopper with instruction leakage function the most according to claim 9, it is characterised in that
Described pair of dropout post rod mechanism (7) also includes the support (12) with rack ventilating hole (12-1), described overcurrent
Dropout push rod (8) passes this rack ventilating hole (12-1), moves iron core (10) and described overcurrent in described electric leakage dynamic
Electric leakage dynamic iron core return-spring (13) is set between iron core (9), moves at described support (12) and described overcurrent
Overcurrent is set between iron core (9) and moves iron core return-spring (14).
11. choppers with instruction leakage function according to claim 10, it is characterised in that
The solenoid (15) that the described pair of dropout post rod mechanism (7) includes round described overcurrent move iron core (9) and
Described support (12) is arranged.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510275756.1A CN106298380B (en) | 2015-05-26 | 2015-05-26 | Breaker with instruction leakage function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510275756.1A CN106298380B (en) | 2015-05-26 | 2015-05-26 | Breaker with instruction leakage function |
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CN106298380A true CN106298380A (en) | 2017-01-04 |
CN106298380B CN106298380B (en) | 2019-10-18 |
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CN201510275756.1A Active CN106298380B (en) | 2015-05-26 | 2015-05-26 | Breaker with instruction leakage function |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108565185A (en) * | 2018-06-15 | 2018-09-21 | 北京北元电器有限公司 | The electric leakage instruction protection mechanism of leakage circuit breakers and electric leakage instruction guard method |
CN114005710A (en) * | 2020-07-28 | 2022-02-01 | 西门子股份公司 | Electric leakage fault indication mechanism of circuit breaker and circuit breaker |
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JP2008112691A (en) * | 2006-10-31 | 2008-05-15 | Fuji Electric Fa Components & Systems Co Ltd | Leakage tripping device of earth leakage breaker |
CN104319200A (en) * | 2014-10-15 | 2015-01-28 | 张森林 | Double-action electromagnetic release |
CN104409290A (en) * | 2008-01-28 | 2015-03-11 | 黑格电子股份有限公司 | System for signalling an electrical defect in an isolating apparatus |
CN204809168U (en) * | 2015-05-26 | 2015-11-25 | 施耐德电器工业公司 | Circuit breaker with instruct electric leakage function |
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CN1359125A (en) * | 2000-12-14 | 2002-07-17 | 三菱电机株式会社 | Leakage circuit breaker |
JP2008112691A (en) * | 2006-10-31 | 2008-05-15 | Fuji Electric Fa Components & Systems Co Ltd | Leakage tripping device of earth leakage breaker |
CN104409290A (en) * | 2008-01-28 | 2015-03-11 | 黑格电子股份有限公司 | System for signalling an electrical defect in an isolating apparatus |
CN104319200A (en) * | 2014-10-15 | 2015-01-28 | 张森林 | Double-action electromagnetic release |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN108565185A (en) * | 2018-06-15 | 2018-09-21 | 北京北元电器有限公司 | The electric leakage instruction protection mechanism of leakage circuit breakers and electric leakage instruction guard method |
CN108565185B (en) * | 2018-06-15 | 2023-09-22 | 北京北元电器有限公司 | Leakage indication protection mechanism and leakage indication protection method of leakage circuit breaker |
CN114005710A (en) * | 2020-07-28 | 2022-02-01 | 西门子股份公司 | Electric leakage fault indication mechanism of circuit breaker and circuit breaker |
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CN106298380B (en) | 2019-10-18 |
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