CN208539542U - A kind of earth leakage protective device for lacking any one phase power supply and shielding - Google Patents
A kind of earth leakage protective device for lacking any one phase power supply and shielding Download PDFInfo
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- CN208539542U CN208539542U CN201821180179.3U CN201821180179U CN208539542U CN 208539542 U CN208539542 U CN 208539542U CN 201821180179 U CN201821180179 U CN 201821180179U CN 208539542 U CN208539542 U CN 208539542U
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- leakage protective
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Abstract
A kind of earth leakage protective device for lacking any one phase power supply and shielding, power input is installed in shell, power input is electrically connected with static contact, static contact and moving contact are in close contact, moving contact is all installed in manual divide-shut brake mechanism, buckle releaser is also equipped in manual divide-shut brake mechanism, moving contact is electrically connected with Pyromagnetic release, draw bar of the armature end in manual divide-shut brake mechanism on Pyromagnetic release, Pyromagnetic release is electrically connected by conducting wire with power output end, conducting wire passes through zero sequence current mutual inductor, the static contact of zero curve input terminal connection in power input is directly connect with the zero line output end in power output end by passing through the conducting wire of zero sequence current mutual inductor, controller respectively with buckle releaser, Pyromagnetic release and zero sequence current mutual inductor electrical connection, the utility model overcomes the deficiencies in the prior art, the leakage Non-electricity protector structure is simple, and stability is good, has overload, phase shortage, ability off zero and earth leakage protective.
Description
Technical field
The utility model relates to earth leakage protective device technical field, particularly belong to one kind and lack any one phase power supply and play protection make
Earth leakage protective device.
Background technique
Earth leakage protective device is also known as earth leakage circuit-breaker, when leaking electricity occurs in electrical equipment or personnel get an electric shock, can timely break
Open circuit provides protection to equipment and personnel, and has overload and short-circuit protection function.When such as using three-phase 380V power supply, such as
Phase broken string in fruit three-phase electricity is perhaps short-circuit and one phase of others or two-phase continue to power, then the personnel in power supply line
Or when equipment experience electric leakage accident, earth leakage protective device can play the role of protection.And there is design and lack in existing earth leakage protective device
It falls into, under special circumstances, the other phase or two such as when being needed in three-phase electricity using 220V power voltage supply, in three-phase circuit
Short circuit, electric leakage occur in the case where not powering mutually, in power supply circuit or when overload situations, earth leakage protective device to personnel and can not be set
It is standby that protection is provided.
Utility model content
The purpose of the utility model is to provide a kind of earth leakage protective device for lacking any one phase power supply and shielding, gram
The deficiencies in the prior art are taken.
To solve the above problems, technical solution adopted in the utility model is as follows: one kind lacking any one phase power supply and rises
The earth leakage protective device of protective effect, including shell, be equipped in the shell power input, power output end, static contact,
Moving contact, manual divide-shut brake mechanism, buckle releaser, Pyromagnetic release, zero sequence current mutual inductor, controller, test resistance and test
Button, the power input are electrically connected with static contact, and the static contact and moving contact are in close contact, the moving contact
It is all installed in manual divide-shut brake mechanism, buckle releaser, the manual division is also equipped in the manual divide-shut brake mechanism
Brake mechanism includes draw bar, and the buckle releaser includes tripping mechanism, and the draw bar is located in the structure of tripping mechanism, institute
The moving contact stated is electrically connected with Pyromagnetic release, and the Pyromagnetic release includes armature, the rank on the Pyromagnetic release
Iron end is electrically connected by conducting wire with power output end close to draw bar, the Pyromagnetic release, and the conducting wire passes through zero
Sequence current transformer, the static contact of the zero curve input terminal connection in the power input, which passes through, passes through zero sequence current mutual inductor
Conducting wire directly connect with the zero line output end in power output end, the controller respectively with buckle releaser, Pyromagnetic release
It is electrically connected with zero sequence current mutual inductor.
Wherein, the test resistance and test button are installed in series in the zero line output end in power output end and one
Between Pyromagnetic release.
Wherein, the contact between the moving contact and static contact is all silver contact.
Wherein, the material of the shell is flame-resistant insulation plastics.
Compared with prior art, the implementation result of the utility model is as follows: in the earth leakage protective device,
Pyromagnetic release will be all accessed in the circuit of three-phase electricity, and the connecting wire of zero curve and three-phase electricity is all passed through into zero sequence current mutual inductance
Device, and controller is electrically connected with leakage tripping device, Pyromagnetic release and zero sequence current mutual inductor respectively, when using three-phase 380V
When power supply, the short circuit of circuit zero curve, or when having that wherein a phase or polyphase circuit have electric leakage, short circuit or electrocution conditions to occur, in circuit
The suddenly change of electric current be more than desired action current when, zero sequence current mutual inductor will export one group of signal to controller, controller
Buckle releaser will be controlled, tripping mechanism is made to touch draw bar, manual divide-shut brake mechanism is by three-phase electricity circuitry cuts；Equally, when three
When mutually needing in electricity using 220V power voltage supply, in the case that an other phase or two-phase in three-phase circuit are not powered, controller
Whether can also be more than desired action current according to the variation of electric current in every phase power supply circuit, control buckle releaser and manual divide-shut brake machine
Structure, by three-phase electricity circuitry cuts；Or when being there are overload situations in any one phase in protection circuit, Pyromagnetic release inhales armature
Draw to get off, draw bar is touched in the end of armature, cuts off manual divide-shut brake mechanism all the circuit of three-phase electricity, to personnel and sets
It is standby to be protected；Whether the hookup that test resistance and test button are constituted, can work normally progress to earth leakage protective device
It examines；The earth leakage protective device structure is simple, and stability is good, and protective capability is strong, has overload, phase shortage, off zero and earth leakage protective
Ability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is a kind of buckle releaser for lacking the earth leakage protective device that any one phase power supply shields of the utility model, heat
The attachment structure schematic diagram of magnetic release and manual divide-shut brake mechanism.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.
For the ordinary skill in the art, can be understood with concrete condition above-mentioned term in the present invention specifically contain
Justice.
As illustrated in fig. 1 and 2, a kind of earth leakage protective for lacking any one phase power supply and shielding described in the utility model
Device, including shell 13, the material of shell 13 are flame-resistant insulation plastics, are equipped with power input 1, power output end in shell 13
2, static contact 3, moving contact 4, manual divide-shut brake mechanism 5, buckle releaser 6, Pyromagnetic release 7, zero sequence current mutual inductor 9, controller
10, test resistance 11 and test button 12, power input 1 are electrically connected with static contact 3, and static contact 3 closely connects with moving contact 4
Touching, the contact 301 between moving contact 4 and static contact 3 is all silver contact, and moving contact all 4 is installed in manual divide-shut brake mechanism 5,
Buckle releaser 6 is also equipped in manual divide-shut brake mechanism 5, manual divide-shut brake mechanism 5 includes draw bar 501, and buckle releaser 6 includes tripping
Mechanism 601, draw bar 501 are located in the structure of tripping mechanism 601, and moving contact 4 is electrically connected with Pyromagnetic release 7, thermo magnetic trip release
Device 7 includes armature 701, and the armature end 7001 on Pyromagnetic release 7 passes through conducting wire 8 close to draw bar 501, Pyromagnetic release 7
It is electrically connected with power output end 2, conducting wire 8 passes through zero sequence current mutual inductor 9, and the zero curve input terminal 101 in power input 1 connects
Static contact 3 by pass through zero sequence current mutual inductor 9 conducting wire 8 directly in power output end 2 zero line output end 201 connect
It connects, controller 10 is electrically connected with buckle releaser 6, Pyromagnetic release 7 and zero sequence current mutual inductor 9 respectively, test resistance 11 and test
Button 12 is installed in series between the zero line output end 201 in power output end 2 and a Pyromagnetic release 7.
Working principle: when using three-phase 380V power supply, the short circuit of circuit zero curve, or have wherein that a phase or polyphase circuit have leakage
When electricity, short circuit or electrocution conditions occur, when the suddenly change of electric current is more than desired action current in circuit, zero sequence current mutual inductor
9 will export one group of signal to controller 10, controller 10 will control buckle releaser 6, and tripping mechanism 601 is made to touch draw bar 501, hand
Close/open machine 5 is moved by three-phase electricity circuitry cuts；Equally, when being needed in three-phase electricity using 220V power voltage supply, three-phase electricity
In the case that an other phase or two-phase in road are not powered, controller 10 can also be according to the variation of electric current in every phase power supply circuit
No is more than desired action current, buckle releaser 6 and manual divide-shut brake mechanism 5 is controlled, by three-phase electricity circuitry cuts；Or by protection circuit
In when there are overload situations in any one phase, Pyromagnetic release 7 draws down armature 701, and the end 7001 of armature, which is touched, leads
Draw bar 501, cut off manual divide-shut brake mechanism 5 circuit of three-phase electricity all, personnel and equipment are protected；Test resistance
11 and test button 12 constitute hookup, can test to whether earth leakage protective device can work normally.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of earth leakage protective device for lacking any one phase power supply and shielding, including shell, it is characterised in that: described is outer
Power input, power output end, static contact, moving contact, manual divide-shut brake mechanism, buckle releaser, thermo magnetic trip release are installed in shell
Device, zero sequence current mutual inductor, controller, test resistance and test button, the power input are electrically connected with static contact, institute
The static contact and moving contact stated are in close contact, and the moving contact is all installed in manual divide-shut brake mechanism, and described divides manually
Buckle releaser is also equipped on switching-on mechanism, the manual divide-shut brake mechanism includes draw bar, and the buckle releaser includes tripping
Mechanism, the draw bar are located in the structure of tripping mechanism, and the moving contact is electrically connected with Pyromagnetic release, the heat
Magnetic release includes armature, and the armature end on the Pyromagnetic release passes through close to draw bar, the Pyromagnetic release
Conducting wire is electrically connected with power output end, and the conducting wire passes through zero sequence current mutual inductor, the zero curve in the power input
Input terminal connection static contact by pass through zero sequence current mutual inductor conducting wire directly with the zero line output end in power output end
Connection, the controller are electrically connected with buckle releaser, Pyromagnetic release and zero sequence current mutual inductor respectively.
2. a kind of earth leakage protective device for lacking any one phase power supply and shielding according to claim 1, feature exist
In: the test resistance and test button is installed in series in zero line output end and a Pyromagnetic release in power output end
Between.
3. a kind of earth leakage protective device for lacking any one phase power supply and shielding according to claim 1, feature exist
In: the contact between the moving contact and static contact is all silver contact.
4. a kind of earth leakage protective device for lacking any one phase power supply and shielding according to claim 1, feature exist
In: the material of the shell is flame-resistant insulation plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821180179.3U CN208539542U (en) | 2018-07-25 | 2018-07-25 | A kind of earth leakage protective device for lacking any one phase power supply and shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821180179.3U CN208539542U (en) | 2018-07-25 | 2018-07-25 | A kind of earth leakage protective device for lacking any one phase power supply and shielding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208539542U true CN208539542U (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821180179.3U Active CN208539542U (en) | 2018-07-25 | 2018-07-25 | A kind of earth leakage protective device for lacking any one phase power supply and shielding |
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| CN (1) | CN208539542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120327A (en) * | 2019-05-23 | 2019-08-13 | 厦门安达兴电气集团有限公司 | The detection of electrical leakage tripping attachment and leakage circuit breakers of preposition zero sequence current mutual inductor |
-
2018
- 2018-07-25 CN CN201821180179.3U patent/CN208539542U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120327A (en) * | 2019-05-23 | 2019-08-13 | 厦门安达兴电气集团有限公司 | The detection of electrical leakage tripping attachment and leakage circuit breakers of preposition zero sequence current mutual inductor |
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