CN107068506A - 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
- Publication number
- CN107068506A CN107068506A CN201710405846.7A CN201710405846A CN107068506A CN 107068506 A CN107068506 A CN 107068506A CN 201710405846 A CN201710405846 A CN 201710405846A CN 107068506 A CN107068506 A CN 107068506A
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- China
- Prior art keywords
- binding posts
- contact
- spring
- distribution network
- power distribution
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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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
-
- 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
- H01H71/08—Terminals; Connections
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to a kind of anti-power transmission automatic disconnecting device of power distribution network low pressure, 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, and the other end connection upper armature of upper spring, the downside of yoke connects one end of lower spring, the other end connection lower armature of lower spring；Upper and lower two armature of spring is connected with reaction spring up and down respectively；Moving contact is fixed with lower armature, described static contact is fixed on housing, and moving contact is corresponding with static contact.Apparatus of the present invention have decompression automatic trip, have 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 invention 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 with the development of science and technology, the new energy technology of China has welcome the spring of a development.Especially
It is photovoltaic industry, it is most main in photovoltaic power generation technology as China is to the subsidy of 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, makes it possible to set up 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, be surfed the Net while being bought 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 causes 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, low pressure occurs in circuit anti-
Anti- power transmission stream is cut off during power transmission in time, it is ensured that circuit homework personal security.
The content of the invention
The present invention automatically cuts off dress for above-mentioned problems of the prior art there is provided a kind of anti-power transmission of power distribution network low pressure
Put, 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, technical scheme 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 spring,
Lower spring, yoke, moving contact and static contact；Neck is set, and magnet coil is fixed in neck, the magnet coil two on housing
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 reaction spring up and down respectively；Lower armature
On be fixed with moving contact, described static contact is fixed on housing, and moving contact is corresponding with static contact.
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, divide, energization control signal input terminal contact includes A1 contacts and A2 contacts, point,
The input signal of energization control signal input terminal is the AC220/230V signals of grid side, 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
Even, user's side inverter connections lead-out terminal be 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 be provided with unit state watch window, window be provided with 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.
Advantages of the present invention effect is as follows：
The present invention can cut off the anti-power transmission electric current of user side low pressure in time in power distribution network interruption maintenance, while in grid side incoming call
When grid-connected equipment normal function can be recovered with automatic closing.Equipment point, combined floodgate shape can be observed directly in equipment
State, can judge whether equipment is in "on" position in time.
Apparatus of the present invention can be used for family expenses grid-connected photovoltaic system or power autonomous user and city low-voltage network it
Between, with decompression automatic trip, there is pressure automatic switching-in function.For lifting power distribution network maintenance efficiency of construction, maintainer's work is reduced
Measure, the equipment is in addition to decompression automatic trip function, also with there is pressure automatic switching-in function, meanwhile, also set up on device
There is obvious point, close Warning Mark, facilitate 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 invention.
Fig. 2 is external structure schematic diagram of the invention.
Fig. 3 is electrical schematics of the invention.
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, family expenses grid-connected photovoltaic system or power autonomous use are installed on present embodiment discloses one kind
There is obvious folding instruction there is decompression automatic trip, have the distribution of pressure automatic switching-in function 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, and magnet coil is fixed in neck, the magnet coil two on housing
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 reaction spring up and down 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 is corresponded, to be set；When the current lead-through on magnet coil, the magnetic force that coil is produced is conducted to yoke, in adhesive
Armature is moved downward, and is shown that switch is in "on" position, adhesive lower armature is moved upwards, is driven moving contact and static contact adhesive,
Switch closing line conducting.When circuit is powered off, coil magnetic force disappear when, armature in the presence of reaction force spring with yoke
Separation, contact disjunction immediately, device is 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, divide, energization control signal input terminal contact includes A1 contacts and A2 contacts, point,
The input signal of energization control signal input terminal is the AC220/230V signals of grid side, 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
Even, user's side inverter connections lead-out terminal be 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, housing front be provided with unit state watch window, window be provided with point, conjunction
Lock status display indicate, point, "on" position display sign controlling organization be connected with yoke, status display sign can 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
With use；Described housing outer surface is provided with corrosion-inhibiting coating, extends the service life of housing.
The present invention can also be directly applied to volume except can be applied to the three-phase four-wire circuit China and foreign countries that rated voltage is 380V
Determine in the single-phase circuit processed that voltage is 220V, simply the mode of connection has been adjusted, B1, B4 binding post correspondence 220V in device
Single-phase circuit processed in live wire and zero line, C1, C4 binding post correspondence photovoltaic generation side inverter output in device
Live wire and zero line in 220V single-phase circuit processed.
The present invention is when detecting input voltage for 0V or less than 110V, and the reaction force of spring will be greater than magnet coil
The suction-combining force, so that control device separating brake, the present invention point, closing operating time are less than or equal to 0.5S.
The anti-power transmission automatic disconnecting device of power distribution network low pressure of the present invention can be resistant to by adjusting the voltage of each part in the device
Degree, is adjusted to the nominal current magnitude of device, so as to need to carry out modular in design according to different load, makes it can
It is widely used in the distribution network system of different voltage class.
The anti-power transmission automatic disconnecting device of power distribution network low pressure of the present invention is simple in construction, cheap, reliable operation, automatic fortune
OK, large-scale promotion is greatly improved the security of power distribution network interruption maintenance operation, ensures operating personnel's safety.
Embodiments of the invention are the foregoing is only, are not the limitations to the scope of the claims of the present invention, it is every to utilize this hair
Equivalent structure or equivalent transformation that bright summary, specification and accompanying drawing content is done, or directly or indirectly it is used in other correlations
Technical field, be included within the scope of the present invention.
Claims (7)
1. a kind of 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, and magnet coil is fixed in neck, institute on housing
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 reaction spring phase up and down
Even；Moving contact is fixed with lower armature, described static contact is fixed on housing, and moving contact is corresponding with static contact.
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.
3. a kind of anti-power transmission automatic disconnecting device of power distribution network low pressure according to claim 2, it is characterised in that described shell
Body is defeated provided with divide-shut brake control signal input, grid side connections input terminal, user's side inverter connections
Go out terminal, wherein, divide, energization control signal input terminal contact includes A1 contacts and A2 contacts, divide, energization control signal is inputted
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 be connected, grid side connections input terminal be 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.
4. a kind of 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.
5. a kind of 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 be provided with unit state watch window, window be provided with point, "on" position display sign, point, "on" position display mark
The controlling organization shown is connected with yoke.
6. a kind of 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.
7. a kind of 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 |
|---|---|---|---|
| CN201710405846.7A CN107068506A (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 |
|---|---|---|---|
| CN201710405846.7A CN107068506A (en) | 2017-06-02 | 2017-06-02 | The anti-power transmission automatic disconnecting device of power distribution network low pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107068506A true CN107068506A (en) | 2017-08-18 |
Family
ID=59615540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710405846.7A Pending CN107068506A (en) | 2017-06-02 | 2017-06-02 | The anti-power transmission automatic disconnecting device of power distribution network low pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107068506A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137043A (en) * | 2019-06-25 | 2019-08-16 | 国家电网有限公司 | A kind of limiting device preventing the anti-power transmission of low pressure |
| CN111899996A (en) * | 2020-08-12 | 2020-11-06 | 河南中烟工业有限责任公司 | Automatic cut-off method for low-voltage reverse power transmission of power distribution network |
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| JP2009199894A (en) * | 2008-02-21 | 2009-09-03 | Panasonic Electric Works Co Ltd | Electromagnetic relay |
| CN201663113U (en) * | 2010-04-02 | 2010-12-01 | 黄日明 | Multifunctional alternating-current contactor |
| CN203351536U (en) * | 2013-07-01 | 2013-12-18 | 浙江正泰电器股份有限公司 | Residual current operated circuit breaker |
| CN203895379U (en) * | 2014-06-27 | 2014-10-22 | 顾轩溥 | Electric power automatic single-pole double-throw relay |
| CN104143480A (en) * | 2013-05-11 | 2014-11-12 | 山东科技职业学院 | Integrated forward and reverse rotation alternating-current contactor |
| CN205303334U (en) * | 2015-11-17 | 2016-06-08 | 莱芜钢铁集团有限公司 | Self -diagnostic function contactor |
| CN206806271U (en) * | 2017-06-02 | 2017-12-26 | 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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2017
- 2017-06-02 CN CN201710405846.7A patent/CN107068506A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009199894A (en) * | 2008-02-21 | 2009-09-03 | Panasonic Electric Works Co Ltd | Electromagnetic relay |
| CN201663113U (en) * | 2010-04-02 | 2010-12-01 | 黄日明 | Multifunctional alternating-current contactor |
| CN104143480A (en) * | 2013-05-11 | 2014-11-12 | 山东科技职业学院 | Integrated forward and reverse rotation alternating-current contactor |
| CN203351536U (en) * | 2013-07-01 | 2013-12-18 | 浙江正泰电器股份有限公司 | Residual current operated circuit breaker |
| CN203895379U (en) * | 2014-06-27 | 2014-10-22 | 顾轩溥 | Electric power automatic single-pole double-throw relay |
| CN205303334U (en) * | 2015-11-17 | 2016-06-08 | 莱芜钢铁集团有限公司 | Self -diagnostic function contactor |
| CN206806271U (en) * | 2017-06-02 | 2017-12-26 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137043A (en) * | 2019-06-25 | 2019-08-16 | 国家电网有限公司 | A kind of limiting device preventing the anti-power transmission of low pressure |
| CN111899996A (en) * | 2020-08-12 | 2020-11-06 | 河南中烟工业有限责任公司 | Automatic cut-off method for low-voltage reverse power transmission of power distribution network |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |
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| RJ01 | Rejection of invention patent application after publication |