CN206806271U - The anti-power transmission automatic disconnecting device of power distribution network low pressure - Google Patents
The anti-power transmission automatic disconnecting device of power distribution network low pressure Download PDFInfo
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- CN206806271U CN206806271U CN201720628689.1U CN201720628689U CN206806271U CN 206806271 U CN206806271 U CN 206806271U CN 201720628689 U CN201720628689 U CN 201720628689U CN 206806271 U CN206806271 U CN 206806271U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 24
- 230000003068 static effect Effects 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 3
- 230000008520 organization Effects 0.000 claims description 3
- 230000006837 decompression Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 239000004821 Contact adhesive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
A kind of anti-power transmission automatic disconnecting device of power distribution network low pressure is the utility model is related to, its structure is that neck is set on housing, and magnet coil is fixed in neck, and the coordination electrode of magnet coil two is connected by the contact on housing with the live wire and zero line of grid side circuit；Yoke is fixedly connected motionless, one end of the upper spring of the upside of yoke connection with coil, the other end connection upper armature of upper spring, one end of the downside connection lower spring of yoke, the other end connection lower armature of lower spring；Upper and lower two armature of spring is connected with upper and lower reaction spring respectively；Moving contact is fixed with lower armature, described static contact is fixed on housing, and moving contact and static contact are corresponding.The utility model device has decompression automatic trip, has pressure automatic switching-in function, when the device is used to prevent that power distribution line maintenance from having a power failure, by the anti-power transmission of the lateral power distribution network of user, so as to ensure upkeep operation personal security.
Description
Technical field
The utility model belongs to field of electrical equipment, and in particular to a kind of anti-power transmission automatic disconnecting device of power distribution network low pressure.
Background technology
With advances in technology the spring of a development has been welcome with the development of science and technology, the new energy technology in China.Especially
It is photovoltaic industry, it is most main in photovoltaic power generation technology with subsidy of the China to new energy technology and the production capacity surplus of whole industry
The price for the solar panel wanted declines year by year, and the cost of complete small-sized photovoltaic power station drops to ordinarily resident's acceptable
Degree, make it possible to establish photovoltaic solar grid-connected system in units of family.At the same time, according to national related text
Part, State Grid Corporation of China should give access facility for generating electricity by way of merging two or more grid systems for photovoltaic plant, while buy online with higher price
Electric energy, this just promotes substantial amounts of private small-sized photovoltaic power station to emerge in large numbers like the mushrooms after rain.Due to the grid-connected hair of small-sized photovoltaic power station
Electricity, if grid-connected access point lacks power distribution network low pressure counnter attack power transmission device, when power network, which needs to overhaul, to have a power failure, easily cause confession
The anti-power transmission of electric line, so as to threaten circuit homework human life safety significantly.
Background above is based on herein, have developed the anti-power transmission automatic disconnecting device of power distribution network low pressure, it is anti-low pressure occur in circuit
Anti- power transmission stream is cut off during power transmission in time, it is ensured that circuit homework personal security.
Utility model content
The utility model is directed to above-mentioned problems of the prior art, there is provided a kind of anti-power transmission of power distribution network low pressure is cut automatically
Disconnected device, solving power network in the prior art needs to overhaul when having a power failure, the problem of easily causing supply line's anti-power transmission.
To reach above-mentioned purpose, the technical solution of the utility model is as follows：
A kind of anti-power transmission automatic disconnecting device of power distribution network low pressure, including housing, magnet coil, upper armature, lower armature, upper bullet
Spring, lower spring, yoke, moving contact and static contact；Neck is set on housing, and magnet coil is fixed in neck, the electromagnetic wire
Two coordination electrodes are enclosed by the contact on housing with the live wire and zero line of grid side circuit to be connected；Yoke is fixedly connected not with coil
It is dynamic, one end of the upper spring of upside connection of yoke, the other end connection upper armature of upper spring, the downside connection lower spring of yoke
One end, the other end connection lower armature of lower spring；Upper and lower two armature of spring is connected with upper and lower reaction spring respectively；Downlink
Moving contact is fixed with iron, described static contact is fixed on housing, and moving contact and static contact are corresponding.
Described moving contact and static contact is respectively arranged with four.
Described housing is provided with divide-shut brake control signal input, grid side connections input terminal, user side
Inverter connections lead-out terminal, wherein, point, energization control signal input terminal contact include A1 contacts and A2 contacts, divide,
The input signal of energization control signal input terminal is the AC220/230V signal of grid side, the live wire and zero line that grid side is drawn
It is connected respectively with A1 contacts and A2 contacts, grid side connections input terminal is B1 binding posts, B2 binding posts, B3 wiring
Terminal, B4 binding posts, aforementioned four binding post respectively with moving contact D1, moving contact D2, moving contact D3, moving contact D4 phases
Connecting, user's side inverter connections lead-out terminal is C1 binding posts, C2 binding posts, C3 binding posts, C4 binding posts,
Aforementioned four binding post is connected with static contact E1, static contact E2, static contact E3, static contact E4 respectively.
Described B1 binding posts, B2 binding posts, B3 binding posts and B4 binding posts corresponds to grid side respectively
The line of A, B, C, O tetra- of 380V three-phase four-wire system power lines, described C1 binding posts, C2 binding posts, C3 binding posts, C4 connect
Line terminals correspond to the line of A, B, C, O tetra- of the 380V three-phase four-wire system power lines of user's photovoltaic generation side inverter output respectively.
Described housing front is provided with unit state watch window, is provided with window point, "on" position display sign,
Divide, the controlling organization of "on" position display sign is connected with yoke.
Described housing back is provided with universal fastener.
Described housing outer surface is provided with corrosion-inhibiting coating.
The utility model has the advantages of as follows：
The utility model can cut off the anti-power transmission electric current of user side low pressure in time in power distribution network interruption maintenance, while in electricity
Net side can recover grid-connected equipment normal function when sending a telegram here with automatic closing.Can be observed directly in equipment equipment point,
"on" position, can judge whether equipment is in "on" position in time.
The utility model device can be used for family expenses grid-connected photovoltaic system or power autonomous user and city low-voltage distribution
Between net, there is decompression automatic trip, have pressure automatic switching-in function.Efficiency of construction is overhauled for lifting power distribution network, reduces maintenance people
Member's workload, the equipment also have pressure automatic switching-in function in addition to decompression automatic trip function, meanwhile, on device also
It is provided with obvious point, closes Warning Mark, facilitates maintainer to check equipment state, it is ensured that job safety.
Brief description of the drawings
Fig. 1 is internal structure schematic diagram of the present utility model.
Fig. 2 is external structure schematic diagram of the present utility model.
Fig. 3 is electrical schematics of the present utility model.
In figure, 1, housing, 2, magnet coil, 3, upper armature, 4, lower armature, 5, upper spring, 6, yoke, 7, moving contact, 8,
Static contact, 9, window, 10, lower spring.
Embodiment
Embodiment
Shown in reference picture 1, present embodiment discloses one kind to be installed on family expenses grid-connected photovoltaic system or power autonomous use
There is the distribution that there is decompression automatic trip, have pressure automatic switching-in function of obvious folding instruction between family and city low-voltage network
The anti-power transmission automatic disconnecting device of net low pressure, including housing 1, magnet coil 2, upper armature 3, lower armature 4, upper spring 5, lower spring
10th, yoke 6, moving contact 7 and static contact 8；Neck is set on housing, and magnet coil is fixed in neck, the magnet coil two
Coordination electrode is connected by the contact on housing with the live wire and zero line of grid side circuit；Yoke be fixedly connected with coil it is motionless,
One end of the upper spring of upside connection of yoke, the other end connection upper armature of upper spring, the one of the downside connection lower spring of yoke
End, the other end connection lower armature of lower spring；Upper and lower two armature of spring is connected with upper and lower reaction spring respectively；Lower armature
Upper interval is fixed with four moving contacts, and described static contact is provided with four, and four static contacts are fixed on housing, moving contact and
Static contact, which corresponds, to be set；When the current lead-through on magnet coil, magnetic force caused by coil is conducted to yoke, in adhesive
Armature moves downward, and shows that switch is in "on" position, and adhesive lower armature moves upwards, drives moving contact and static contact adhesive,
Switch closing line conducting.When circuit powers off, coil magnetic force disappear when, armature in the presence of reaction force spring with yoke
Separation, contact disjunction immediately, device are in gate-dividing state.
Described housing is provided with divide-shut brake control signal input, grid side connections input terminal, user side
Inverter connections lead-out terminal, wherein, point, energization control signal input terminal contact include A1 contacts and A2 contacts, divide,
The input signal of energization control signal input terminal is the AC220/230V signal of grid side, the live wire and zero line that grid side is drawn
It is connected respectively with A1 contacts and A2 contacts, grid side connections input terminal is B1 binding posts, B2 binding posts, B3 wiring
Terminal, B4 binding posts, aforementioned four binding post respectively with moving contact D1, moving contact D2, moving contact D3, moving contact D4 phases
Connecting, user's side inverter connections lead-out terminal is C1 binding posts, C2 binding posts, C3 binding posts, C4 binding posts,
Aforementioned four binding post is connected with static contact E1, static contact E2, static contact E3, static contact E4 respectively.
Described B1 binding posts, B2 binding posts, B3 binding posts and B4 binding posts corresponds to grid side respectively
The line of A, B, C, O tetra- of 380V three-phase four-wire system power lines, described C1 binding posts, C2 binding posts, C3 binding posts, C4 connect
Line terminals correspond to the line of A, B, C, O tetra- of the 380V three-phase four-wire system power lines of user's photovoltaic generation side inverter output respectively.
Described housing is packed using plastic housing, and housing front is provided with unit state watch window, is provided with window point, conjunction
Lock status display indicates, point, the controlling organization of "on" position display sign be connected with yoke, status display sign can it is red with
Switched between green, when device closes a floodgate, sign display is red, during device separating brake, sign display green.
Described housing back is provided with universal fastener, is mountable on general 35mm electrical guide rails, facilitates the installation of equipment
And use；Described housing outer surface is provided with corrosion-inhibiting coating, extends the service life of housing.
The utility model removes the three-phase four-wire circuit China and foreign countries that can be applied to that rated voltage is 380V, can also directly apply
In the single-phase circuit processed that rated voltage is 220V, simply the mode of connection has adjusted, and B1, B4 binding post in device are corresponding
Live wire and zero line in 220V single-phase circuit processed, C1, C4 binding post in device correspond to the output of photovoltaic generation side inverter
220V single-phase circuit processed in live wire and zero line.
For the utility model when detecting input voltage for 0V or less than 110V, the reaction force of spring will be greater than electromagnetic wire
The suction-combining force of circle, so as to control device separating brake, the utility model point, closing operating time are less than or equal to 0.5S.
The anti-power transmission automatic disconnecting device of the utility model power distribution network low pressure can be by adjusting the voltage of each part in the device
Tolerance degree, the nominal current magnitude of device is adjusted, so as to need to carry out modular in design according to different load, made
It can be widely applied to the distribution network system of different voltage class.
The anti-power transmission automatic disconnecting device of the utility model power distribution network low pressure is simple in construction, cheap, reliable operation, automatic
Operation, large-scale promotion are greatly improved the security of power distribution network interruption maintenance operation, ensure operating personnel's safety.
Embodiment of the present utility model is the foregoing is only, is not the limitation to the utility model patent scope, it is every
The equivalent structure or equivalent transformation done using summary, specification and accompanying drawing content of the present utility model, or directly or indirectly fortune
Used in other related technical areas, similarly it is included in scope of patent protection of the present utility model.
Claims (7)
- A kind of 1. anti-power transmission automatic disconnecting device of power distribution network low pressure, it is characterised in that including housing, magnet coil, upper armature, under Armature, upper spring, lower spring, yoke, moving contact and static contact；Neck is set on housing, and magnet coil is fixed in neck, institute The coordination electrode of magnet coil two is stated by the contact on housing with the live wire and zero line of grid side circuit to be connected；Yoke and coil phase It is even fixed, one end of the upper spring of upside connection of yoke, the other end connection upper armature of upper spring, the downside connection of yoke One end of lower spring, the other end connection lower armature of lower spring；Upper and lower two armature of spring respectively with upper and lower reaction spring phase Even；Moving contact is fixed with lower armature, described static contact is fixed on housing, and moving contact and static contact are corresponding.
- 2. the anti-power transmission automatic disconnecting device of a kind of power distribution network low pressure according to claim 1, it is characterised in that described is dynamic Contact and static contact are respectively arranged with four.
- A kind of 3. anti-power transmission automatic disconnecting device of power distribution network low pressure according to claim 2, it is characterised in that described shell It is defeated that body is provided with divide-shut brake control signal input, grid side connections input terminal, user's side inverter connections Go out terminal, wherein, point, energization control signal input terminal contact include A1 contacts and A2 contacts, point, energization control signal input The input signal of terminal be grid side AC220/230V signals, grid side draw live wire and zero line respectively with A1 contacts and A2 Contact is connected, and grid side connections input terminal is B1 binding posts, B2 binding posts, B3 binding posts, B4 binding posts, Aforementioned four binding post is connected with moving contact D1, moving contact D2, moving contact D3, moving contact D4 respectively, user's side inverter line Wiring lead-out terminal in road is C1 binding posts, C2 binding posts, C3 binding posts, C4 binding posts, aforementioned four binding post It is connected respectively with static contact E1, static contact E2, static contact E3, static contact E4.
- A kind of 4. anti-power transmission automatic disconnecting device of power distribution network low pressure according to claim 3, it is characterised in that described B1 Binding post, B2 binding posts, B3 binding posts and B4 binding posts correspond to the 380V three-phase four-wire system power supplys of grid side respectively The line of A, B, C, O tetra- of line, described C1 binding posts, C2 binding posts, C3 binding posts, C4 binding posts correspond to user respectively The line of A, B, C, O tetra- of the 380V three-phase four-wire system power lines of photovoltaic generation side inverter output.
- A kind of 5. anti-power transmission automatic disconnecting device of power distribution network low pressure according to claim 1, it is characterised in that described shell Body front is provided with unit state watch window, is provided with window point, "on" position display sign, point, "on" position display mark The controlling organization shown is connected with yoke.
- A kind of 6. anti-power transmission automatic disconnecting device of power distribution network low pressure according to claim 1, it is characterised in that described shell Body back is provided with universal fastener.
- A kind of 7. anti-power transmission automatic disconnecting device of power distribution network low pressure according to claim 1, it is characterised in that described shell External surface is provided with corrosion-inhibiting coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720628689.1U CN206806271U (en) | 2017-06-02 | 2017-06-02 | The anti-power transmission automatic disconnecting device of power distribution network low pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720628689.1U CN206806271U (en) | 2017-06-02 | 2017-06-02 | The anti-power transmission automatic disconnecting device of power distribution network low pressure |
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| Publication Number | Publication Date |
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| CN206806271U true CN206806271U (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720628689.1U Active CN206806271U (en) | 2017-06-02 | 2017-06-02 | The anti-power transmission automatic disconnecting device of power distribution network low pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068506A (en) * | 2017-06-02 | 2017-08-18 | 国网辽宁省电力有限公司铁岭供电公司 | The anti-power transmission automatic disconnecting device of power distribution network low pressure |
-
2017
- 2017-06-02 CN CN201720628689.1U patent/CN206806271U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068506A (en) * | 2017-06-02 | 2017-08-18 | 国网辽宁省电力有限公司铁岭供电公司 | The anti-power transmission automatic disconnecting device of power distribution network low pressure |
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