CN105632847A - Switching mechanism with automatic tripping function - Google Patents
Switching mechanism with automatic tripping function Download PDFInfo
- Publication number
- CN105632847A CN105632847A CN201610191388.7A CN201610191388A CN105632847A CN 105632847 A CN105632847 A CN 105632847A CN 201610191388 A CN201610191388 A CN 201610191388A CN 105632847 A CN105632847 A CN 105632847A
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- Prior art keywords
- swing arm
- lever
- main shaft
- under
- connection
- 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
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- 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
- H01H71/10—Operating or release mechanisms
Abstract
The invention discloses a switching mechanism with an automatic tripping function. The mechanism comprises a bracket, a swinging push rod, a connection swing arm and a lever; through operating the lever, a power source can be switched on and switched off manually, so that the function of an ordinary rocker switch can be realized. When electric leakage, short circuiting, overload and arcing occurs on a switch socket provided with the switching mechanism, a tripping module can push the swinging push rod to swing; one end of the swinging push rod contacts with the tail end of the connection swing arm so as to push the connection swing arm; the connection swing arm is separated from a catching groove under a pushing effect; the connection swing arm moves upwards with the lever under the action of a lever torsional spring, so as to be lifted, and at the same time, drives a main shaft and a moving contact thereon to be lifted, so that the moving contact can be separated from a fixed contact, and therefore, power-off protection can be realized, and security of electricity use can be ensured, and potential safety hazards can be avoided.
Description
Technical field
The invention belongs to electronics, electrical equipment electricity consumption fire security protection technology field, it is specifically related to a kind of on-off mechanism with automatic tripping function.
Background technology:
Electric arc is after isolator is punctured by voltage, by not conducting electricity the spontaneous phenomenon becoming and conducting electricity and emit light and heat, is commonly called as " beating arc ". Arc fault has sudden, disguised and randomness. Fault electric arc is potential safety hazard common in electric circuit, fault electric arc occurs in that line insulation is bad or loose contact place, also loosening electric wire connection point may be occurred in, and in aging or damaged circuit and the junction of electric appliance circuits, the generation of fault electric arc easily causes the potential safety hazards such as fire, on the impact of production the damaging property of life of people.
Fault electric arc is generally divided into three kinds, is serial arc, electric arc in parallel and to ground electric arc respectively. In electric short circuit fire, the short circuit of ground fault electric arc causes the dangerous maximum of fire, because electric arc has very big impedance and volts lost, which limit the usefulness fault current, make the over-current protection electrical equipment can not action or can not action in time cut off the electricity supply, the localized hyperthermia of several amperes electric arcs can up to 3000 ~ 4000 DEG C, and the neighbouring combustiblesubstance that is enough to ignite is on fire. Fault electric arc, such as earth leakage protective device, overload protection arrangement, isolating switch etc., all cannot effectively be protected by common circuit protector.
Fault electric arc isolating switch (ArcFaultCircuitInterrupters is called for short AFCI) technology is a up-to-date circuit protection technology, and main effect is the fire preventing from causing by fault electric arc. When there is arc fault; owing to strength of current is less; lower than the set(ting)value of the power system particularly overcurrent protection that low pressure field of power distribution is extensively installed; in distribution line terminal, fault electric arc isolating switch (AFCI) is installed to be Timeliness coverage electric arc and cut off circuit, effectively reduces the measure that electric arc causes loss. But the fault electric arc isolating switch in existing market still cannot meet the safeguard protection of existing circuit.
And, common rocker switch is only applicable to control small power, low current electrical equipment, and the protection switch on socket can only close by manual switch. And the switch of major part is all single open circuit, dangerous, the various intelligent remote control automatic power-off switch of demand in existing market, original common switch socket (seesaw socket) is not easy to access relevant Controlling System.
Therefore; in view of above problem; it is necessary to propose a kind of novel on-off mechanism with automatic tripping function; when there is electric leakage, short circuit, overload, arcing (exceeding range of set value) in the switch socket that this on-off mechanism is housed; dropout module actuable switch mechanism action so that dynamic contact departs from static contact, plays the provide protection preventing fault from occurring; ensure energising safety contact, avoid that potential safety hazard occurs. And after socket accesses relevant control system, still safety elegant in appearance.
Summary of the invention
In view of this; the present invention provides a kind of on-off mechanism with automatic tripping function; when there is electric leakage, short circuit, overload, arcing in the switch socket that this on-off mechanism is housed; dropout module actuable switch mechanism action; dynamic contact is made to depart from static contact; play the protection gate action preventing fault, ensure energising safety contact, avoid that potential safety hazard occurs.
A kind of on-off mechanism with automatic tripping function that object according to the present invention proposes, comprising:
Support,
Swing bar: described swing bar is arranged on described support by axis of rotation, and swing bar is provided with a torsion spring, swing bar is pre-tight on support under the effect of described torsion spring;
Connect swing arm: described connection swing arm can move up and down, described support is provided with a guide chute, described connection swing arm is moved along described guide chute by the axostylus axostyle in the axis hole on it, forming a button groove in described guide chute, the axostylus axostyle in described axis hole slips into lock only described connection swing arm in described button groove;
Connecting main shaft in described connection swing arm, described main shaft is connected with dynamic contact, described main shaft moves up and down under the drive connecting swing arm and drives dynamic contact or depart from static contact;
Lever: described lever rotates and is arranged on support, and lever one end connects described connection swing arm, and described lever is provided with lever torsion spring, connects after swing arm skids off button groove dropout and moves along guide chute under the effect of lever torsion spring;
During normal operation, depress lever, when lever moves downward, band is dynamically connected under swing arm to move, and will connect under swing arm will drive main shaft, dynamic contact and moves, and when the axostylus axostyle in the axis hole connected in swing arm slips into after lock stops in button groove, moves contact and contacts energising with static contact; When needing power-off, manual actuation swing bar, swing arm end contacts promotion connection swing arm with connecting in swing bar one end, connects swing arm and departs from button groove under pushing effect power, and connection swing arm moves up with lever under the effect of lever torsion spring and opens, and cuts off the electricity supply;
When breaking down, swing bar swings by dropout module thrust, one end of swing bar contacts to promote with connection swing arm end and connects swing arm, connect swing arm under pushing effect power, depart from button groove, connection swing arm moves up with lever under the effect of lever torsion spring and opens, drive simultaneously main shaft and on dynamic contact upwards open, dynamic contact departs from static contact, it is achieved power-off is protected; After dropout module is return, swing bar is resetted automatically by torsion spring, after fixing a breakdown, by presses lever manual ON power supply.
Preferably, described connection swing arm comprises the first connection swing arm being hinged setting and is connected swing arm with the 2nd, and described first connection swing arm one end and described lever are hinged, and thrust is transmitted in order to contact with described swing bar in one end of described 2nd connection swing arm.
Preferably, described support is provided with the guide chute that spacing first connection swing arm respectively is connected swing arm and moves with the 2nd, at least one guide chute forms described button groove.
Preferably, being also provided with the main shaft separation spring that an auxiliary spindle is upwards opened bottom described main shaft, under switch-on regime, described main shaft separation spring is impaction state.
Preferably, described dynamic contact being provided with a dynamic contact pre-compressed spring, under switch-on regime, described dynamic contact pre-compressed spring presses contact in advance and realizes electrical contact.
Preferably, described button Slot shaping in the end of described guide chute, for seamlessly transitting between described button groove and described guide chute.
Preferably, described button groove is arcuate structure groove.
Preferably, described guide chute is vertically arranged, and described main shaft is rotationally connected with in described connection swing arm by axis hole, and moves up and down along guide chute with the axostylus axostyle in axis hole.
Preferably, described main shaft at least arranging two axis holes, the axis hole on main shaft is slided by the axostylus axostyle of axis hole inside and is arranged in same guide chute.
Preferably, described on-off mechanism is also provided with main shaft extension spring, swing arm end is connected when swing bar promotes, connect swing arm under pushing effect power, depart from button groove, connection swing arm moves up with lever under the effect of lever torsion spring and opens, main shaft extension spring simultaneously drives main shaft and dynamic contact upwards to move, and dynamic contact departs from static contact power-off.
The present invention discloses a kind of on-off mechanism with automatic tripping function, this mechanism comprises support, swing bar, connect swing arm and lever, when electric leakage occurs in the switch socket that this on-off mechanism is housed, short circuit, overload, during arcing, dropout module can promote swing bar to swing, one end of swing bar contacts to promote with connection swing arm end and connects swing arm, connect swing arm under pushing effect power, depart from button groove, connection swing arm moves up with lever under the effect of lever torsion spring and opens, simultaneously drive main shaft and on dynamic contact upwards open, dynamic contact departs from static contact, realize power-off protection, ensure Electrical Safety, avoid that potential safety hazard occurs.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that state graph opened by on-off mechanism.
Fig. 2 is the closed state graph of on-off mechanism.
Fig. 3 is the structural representation of support.
Fig. 4 is the structural representation of swing bar.
Fig. 5 is the side-view of swing bar.
Fig. 6 is the structural representation connecting swing arm.
Fig. 7 is main axle structure schematic diagram.
Fig. 8 is lever construction schematic diagram.
Fig. 9 is that schematic diagram opened by the on-off mechanism being provided with main shaft extension spring.
Figure 10 is the closed schematic diagram of on-off mechanism being provided with main shaft extension spring.
The title of corresponding component representated by numeral or letter in figure
1, axis hole 2, axis hole 3, axis hole 4, axis hole 5, axis hole 6, axis hole
10, support 11, guide chute 12, button groove 13, guide chute
20, swing bar 21, torsion spring
30, connect swing arm 31, first and connect swing arm 32, the 2nd connection swing arm
40, main shaft 41, main shaft separation spring 42, main shaft extension spring
50, contact 51, dynamic contact pre-compressed spring is moved
60, lever 61, lever torsion spring 601, open holes 602, open holes
70, static contact
Embodiment
In electric short circuit fire, the short circuit of ground fault electric arc causes the dangerous maximum of fire, because electric arc has very big impedance and volts lost, which limit the usefulness fault current, make the over-current protection electrical equipment can not action or can not action power dump in time, the localized hyperthermia of several amperes electric arcs can up to 3000 ~ 4000 DEG C, and the neighbouring combustiblesubstance that is enough to ignite is on fire. Fault electric arc, such as earth leakage protective device, overload protection arrangement, isolating switch etc., all cannot effectively be protected by common circuit protector.
The present invention is directed to deficiency of the prior art; provide a kind of on-off mechanism with automatic tripping function; when there is electric leakage, short circuit, overload, arcing in the switch socket that this on-off mechanism is housed; dropout module actuable switch mechanism action; dynamic contact is made to depart from static contact; play the protection gate action preventing fault, ensure energising safety contact, avoid that potential safety hazard occurs.
By by embodiment, the technical scheme of the present invention is clearly and completely described below. Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please also refer to Fig. 1 to Fig. 8, as shown in the figure, a kind of on-off mechanism with automatic tripping function, comprising:
Support 10, swing bar 20, swing bar 20 is articulated with on the open holes 601 of support 10 by axis hole 6, swing bar 20 is provided with a torsion spring 21, swing bar 20 is pre-tight on support 10 under the effect of torsion spring 21, and under the effect not having external force, swing bar is fixedly installed.
Connect swing arm 30, connect swing arm 30 can move up and down, support 10 is provided with guide chute 11, guide chute 13, connect swing arm 30 to be moved along guide chute 11 by axis hole 3, connection swing arm 30 disclosed in the present application comprises the first connection swing arm 31 being hinged setting and is connected swing arm 32 with the 2nd, first connection swing arm 31 one end and lever 60 are hinged, and thrust is transmitted in order to contact with swing bar 20 in one end of the 2nd connection swing arm 32. Wherein, the first connection swing arm 31 is fixed on support by axis hole 3, is hinged by axis hole 2 and lever. 2nd connection swing arm 32 is connected on support by axis hole 4, axis hole 3, axis hole 4 are connected in chute by axostylus axostyle respectively so that the first connection swing arm 31 is connected swing arm 32 and is slided in guide chute 11, guide chute 13 by the axostylus axostyle in axis hole 3, axis hole 4 respectively with the 2nd.
Forming a button groove 12 in guide chute 11, in this embodiment, button groove 12 is positioned at the first connection swing arm 31 place guide chute 11 end, and the axostylus axostyle in axis hole 3 slips into lock only the first connection swing arm 31 in button groove 12. Make dynamic/static contact keep connection state, and lock only.
2nd connection swing arm 32 connects main shaft 40, main shaft 40 is provided with dynamic contact 50, move up and down under the driving that main shaft 40 is separated spring 41 with main shaft in the 2nd connection swing arm 32, drive dynamic contact 50 contact or depart from static contact, it is achieved the connecting and disconnecting of circuit.
Lever 60 is articulated with on support 10 by axis hole 1, and support is provided with open holes 602, and lever 60 the other end connects the first connection swing arm 31, and lever 60 is provided with lever torsion spring 61.
The present invention detains the end that groove 12 takes shape in guide chute 11, for seamlessly transitting between button groove and guide chute 11. Preferably, detaining groove is arcuate structure groove.
In the present embodiment, guide chute 11, guide chute 13 are vertically arranged, and main shaft 40 is hinged in the 2nd connection swing arm 32 by axis hole 4, and moves up and down along guide chute 13 with the axostylus axostyle in axis hole 4. For ensureing the stability of main axle moving, main shaft being also provided with an axis hole 5, axis hole 4 slides vertically with the axostylus axostyle in axis hole 5 simultaneously in guide chute 13.
Structural shape and the position of button groove 12 set as required, do not limit at this.
During normal operation, depress lever, when lever moves downward, band is dynamically connected under swing arm to move, and will connect under swing arm will drive main shaft, dynamic contact and moves, and when the axostylus axostyle in the axis hole connected in swing arm slips into after lock stops in button groove, moves contact and contacts energising with static contact; When needing power-off, manual actuation swing bar, swing arm end contacts promotion connection swing arm with connecting in swing bar one end, connects swing arm and departs from button groove under pushing effect power, and connection swing arm moves up with lever under the effect of lever torsion spring and opens, and cuts off the electricity supply.
When breaking down; swing bar 20 is subject to dropout module to be promoted; the other end of swing bar 20 contacts with the 2nd connection swing arm 32 end and promotes the 2nd connection swing arm 32; 2nd connection swing arm 32 then drives the first connection swing arm 31 to depart from button groove 12 and releases lockup state; connection swing arm 30 moves up with lever 60 under the effect of lever torsion spring 61 and opens; it is fixedly connected with owing to main shaft 40 is connected swing arm 32 with the 2nd; simultaneously drive main shaft 40 and on dynamic contact 50 upwards open; dynamic contact departs from static contact, it is achieved power-off is protected. Swing bar 20 is resetted automatically by torsion spring 21.
When depress lever 60 front end, be dynamically connected swing arm 30 times of band moves, and connects swing arm 30 and will drive main shaft 40, dynamic contact to move for 50 times, after the axostylus axostyle in the axis hole 3 in the first connection swing arm 31 slips into and locks in button groove 12, moves contact 50 and contacts with static contact.
In addition, being also provided with the main shaft separation spring 41 of assisting in opening bottom main shaft 40, main shaft separation spring is impaction state. Being provided with a dynamic contact pre-compressed spring 51 on dynamic contact 50, when dynamic and static contact is connected, dynamic contact pre-compressed spring 51 keeps the contact pressure of dynamic and static contact, ensures that contact is completely.
See Fig. 9,10, on-off mechanism is also provided with main shaft extension spring, swing arm end is connected when swing bar promotes, connect swing arm under pushing effect power, depart from button groove, connection swing arm moves up with lever under the effect of lever torsion spring and opens, main shaft extension spring simultaneously drives main shaft and dynamic contact upwards to move, and dynamic contact departs from static contact power-off.
The present invention discloses a kind of on-off mechanism with automatic tripping function, this mechanism comprises support, swing bar, connect swing arm and lever, when electric leakage occurs in the switch socket that this on-off mechanism is housed, short circuit, overload, during arcing, dropout module can promote swing bar to swing, one end of swing bar contacts to promote with connection swing arm end and connects swing arm, connect swing arm under pushing effect power, depart from button groove, connection swing arm moves up with lever under the effect of lever torsion spring and opens, simultaneously drive main shaft and on dynamic contact upwards open, dynamic contact departs from static contact, realize power-off protection, ensure Electrical Safety, avoid that potential safety hazard occurs.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are enable to realize or use the present invention. To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments. Therefore, the present invention can not be limited in these embodiments shown in this article, but be met the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. one kind has the on-off mechanism of automatic tripping function, it is characterized in that, comprising: support, swing bar: described swing bar is arranged on described support by axis of rotation, being provided with a torsion spring on swing bar, swing bar is pre-tight on support under the effect of described torsion spring;
Connect swing arm: described connection swing arm can move up and down, described support is provided with a guide chute, described connection swing arm is moved along described guide chute by the axostylus axostyle in the axis hole on it, forming a button groove in described guide chute, the axostylus axostyle in described axis hole slips into lock only described connection swing arm in described button groove;
Connecting main shaft in described connection swing arm, described main shaft is connected with dynamic contact, described main shaft moves up and down under the drive connecting swing arm and drives dynamic contact or depart from static contact;
Lever: described lever rotates and is arranged on support, and lever one end connects described connection swing arm, and described lever is provided with lever torsion spring, connects after swing arm skids off button groove dropout and moves along guide chute under the effect of lever torsion spring;
During normal operation, depress lever, when lever moves downward, band is dynamically connected under swing arm to move, and will connect under swing arm will drive main shaft, dynamic contact and moves, and when the axostylus axostyle in the axis hole connected in swing arm slips into after lock stops in button groove, moves contact and contacts energising with static contact; When needing power-off, manual actuation swing bar, swing arm end contacts promotion connection swing arm with connecting in swing bar one end, connects swing arm and departs from button groove under pushing effect power, and connection swing arm moves up with lever under the effect of lever torsion spring and opens, and cuts off the electricity supply;
When breaking down, swing bar swings by dropout module thrust, one end of swing bar contacts to promote with connection swing arm end and connects swing arm, connect swing arm under pushing effect power, depart from button groove, connection swing arm moves up with lever under the effect of lever torsion spring and opens, drive simultaneously main shaft and on dynamic contact upwards open, dynamic contact departs from static contact, it is achieved power-off is protected; After dropout module is return, swing bar is resetted automatically by torsion spring, after fixing a breakdown, by presses lever manual ON power supply.
2. the on-off mechanism with automatic tripping function according to claim 1, it is characterized in that, described connection swing arm comprises the first connection swing arm being hinged setting and is connected swing arm with the 2nd, described first connection swing arm one end and described lever are hinged, and thrust is transmitted in order to contact with described swing bar in one end of described 2nd connection swing arm.
3. the on-off mechanism with automatic tripping function according to claim 2, it is characterised in that, described support is provided with the guide chute that spacing first connection swing arm respectively is connected swing arm and moves with the 2nd, at least one guide chute forms described button groove.
4. the on-off mechanism with automatic tripping function according to claim 1, it is characterised in that, also it is provided with the main shaft separation spring that an auxiliary spindle is upwards opened bottom described main shaft, under switch-on regime, described main shaft separation spring is impaction state.
5. the on-off mechanism with automatic tripping function according to claim 1, it is characterised in that, described dynamic contact is provided with a dynamic contact pre-compressed spring, under switch-on regime, described dynamic contact pre-compressed spring presses contact in advance and realizes electrical contact.
6. the on-off mechanism with automatic tripping function according to the arbitrary item of claim 1-5, it is characterised in that, described button Slot shaping in the end of described guide chute, for seamlessly transitting between described button groove and described guide chute.
7. the on-off mechanism with automatic tripping function according to claim 6, it is characterised in that, described button groove is arcuate structure groove.
8. the on-off mechanism with automatic tripping function according to claim 1, it is characterised in that, described guide chute is vertically arranged, and described main shaft is rotationally connected with in described connection swing arm by axis hole, and moves up and down along guide chute with the axostylus axostyle in axis hole.
9. the on-off mechanism with automatic tripping function according to claim 8, it is characterised in that, described main shaft at least arranges two axis holes, the axis hole on main shaft is slided by the axostylus axostyle of axis hole inside and is arranged in same guide chute.
10. the on-off mechanism with automatic tripping function according to claim 1, it is characterized in that, described on-off mechanism is also provided with main shaft extension spring, swing arm end is connected when swing bar promotes, connect swing arm under pushing effect power, depart from button groove, connection swing arm moves up with lever under the effect of lever torsion spring and opens, and main shaft extension spring simultaneously drives main shaft and dynamic contact upwards to move, and dynamic contact departs from static contact power-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191388.7A CN105632847B (en) | 2016-03-30 | 2016-03-30 | A kind of switching mechanism with automatic tripping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191388.7A CN105632847B (en) | 2016-03-30 | 2016-03-30 | A kind of switching mechanism with automatic tripping function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105632847A true CN105632847A (en) | 2016-06-01 |
| CN105632847B CN105632847B (en) | 2017-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610191388.7A Active CN105632847B (en) | 2016-03-30 | 2016-03-30 | A kind of switching mechanism with automatic tripping function |
Country Status (1)
| Country | Link |
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| CN (1) | CN105632847B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360760A (en) * | 2018-11-22 | 2019-02-19 | 镇江市丹高电器有限公司 | Direct Action Type electric ground switch |
| CN116260111A (en) * | 2022-12-26 | 2023-06-13 | 国家电投集团云南国际电力投资有限公司 | Distributed photovoltaic access protection equipment and application method thereof |
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| US5451729A (en) * | 1993-03-17 | 1995-09-19 | Ellenberger & Poensgen Gmbh | Single or multipole circuit breaker |
| CN201804815U (en) * | 2010-05-28 | 2011-04-20 | 厦门振泰成科技有限公司 | Single-break wall fireproof switch |
| CN102915857A (en) * | 2011-08-02 | 2013-02-06 | 法纳通电器(上海)有限公司 | Wall-mounted switch |
| CN205564676U (en) * | 2016-03-30 | 2016-09-07 | 陈德伦 | On -off mechanism with automatic trip function |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5451729A (en) * | 1993-03-17 | 1995-09-19 | Ellenberger & Poensgen Gmbh | Single or multipole circuit breaker |
| CN201804815U (en) * | 2010-05-28 | 2011-04-20 | 厦门振泰成科技有限公司 | Single-break wall fireproof switch |
| CN102915857A (en) * | 2011-08-02 | 2013-02-06 | 法纳通电器(上海)有限公司 | Wall-mounted switch |
| CN205564676U (en) * | 2016-03-30 | 2016-09-07 | 陈德伦 | On -off mechanism with automatic trip function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360760A (en) * | 2018-11-22 | 2019-02-19 | 镇江市丹高电器有限公司 | Direct Action Type electric ground switch |
| CN116260111A (en) * | 2022-12-26 | 2023-06-13 | 国家电投集团云南国际电力投资有限公司 | Distributed photovoltaic access protection equipment and application method thereof |
| CN116260111B (en) * | 2022-12-26 | 2024-02-06 | 国家电投集团云南国际电力投资有限公司 | Distributed photovoltaic access protection equipment and application method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105632847B (en) | 2017-10-24 |
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