CN110311348A - Multifunctional protection device and ammeter box - Google Patents
Multifunctional protection device and ammeter box Download PDFInfo
- Publication number
- CN110311348A CN110311348A CN201910731168.2A CN201910731168A CN110311348A CN 110311348 A CN110311348 A CN 110311348A CN 201910731168 A CN201910731168 A CN 201910731168A CN 110311348 A CN110311348 A CN 110311348A
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- 238000004804 winding Methods 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 3
- 230000006870 function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
-
- H02J13/0075—
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention relates to electrical equipment technical fields, specifically disclose a kind of multifunctional protection device and ammeter box, and multifunctional protection device includes: electrothermal relay, and electrothermal relay includes hot movable contact and hot stationary contact, and hot movable contact with customer power supply line for connecting；Electrical relay, electrical relay include that electronic contact, electric stationary contact and winding wiring terminal, electronic contact are connect with hot stationary contact, and electric stationary contact with electric energy meter supply lines for connecting；Microcontroller, microcontroller are connect with winding wiring terminal；Temperature sensor, temperature sensor are connect with microcontroller, for carrying out temperature detection；Gsm module, gsm module are connect with microcontroller, for sending warning short message；Mobile terminal, mobile terminal and gsm module communicate to connect, for receiving warning short message.The present invention provides a kind of multifunctional protection device and ammeter box, has not only had the function of electricity protection, but also can automatically reset, and reduces the workload of electric power personnel, improves working efficiency.
Description
Technical field
The present invention relates to electrical equipment technical field more particularly to a kind of multifunctional protection devices and ammeter box.
Background technique
With Chinese society expanding economy, people's quality of life is continuously improved, and user's family is added to more and more
High-power household electrical appliance, while these household electrical appliance have brought many convenient, also switching devices propose higher
Requirement, current many routes are still using the old switchgear stayed in the past, and there is no the increasings with household electrical appliance
It is more and replace more powerful switchgear, it is more or with old chopper switch especially in rural area, it protects
The capacity of dangerous silk is small, often blowout, and the technical staff of power supply station is needed to come to repair, and replaces fuse, this is greatly
Increase the workload of power supply station's operation maintenance personnel.
Although there is some user resident's familys to be mounted with earth leakage circuit-breaker and short-circuiting device, once the electric leakage of family
Protective switch tripping, many users will not stamp switch, especially for the old man and child in rural area, even leak
Electric protective circuit breaker trips, also do not know it is what reason, once it is out of power, power supply station will be made a call and come to repair, supplied
The personnel of electric department have sometimes trudged away tens kilometers of mountain area, just in order to come to help user's family to make a switch, this
Being a very simple thing, a large amount of man power and material is but consumed, the normal electricity consumption of user is affected, extends telegram in reply
Time.
The measure of traditional switchgear shortage electricity protection, reliability is not high, volume is big, has a single function, it is difficult to comply with
The demand of modern Economy Development.
Summary of the invention
It is an advantage of the invention to provide a kind of multifunctional protection device and ammeter boxes, both have electricity protection
Function, and can automatically reset, the workload of electric power personnel is reduced, working efficiency is improved.
To achieve these objectives, on the one hand, the present invention provides a kind of multifunctional protection device, comprising:
Electrothermal relay, the electrothermal relay include hot movable contact and hot stationary contact, and the hot movable contact is used to supply with user
Electric wire connection；
Electrical relay, the electrical relay include electronic contact, electric stationary contact and winding wiring terminal, the electronic contact
It is connect with the hot stationary contact, the electricity stationary contact with electric energy meter supply lines for connecting；
Microcontroller, the microcontroller are connect with the winding wiring terminal；
Temperature sensor, the temperature sensor are connect with the microcontroller, for carrying out temperature detection；
Gsm module, the gsm module are connect with the microcontroller, for sending warning short message；
Mobile terminal, the mobile terminal and the gsm module communicate to connect, for receiving warning short message.
Preferably, further includes:
Connecting terminal copper bar, the electrothermal relay are connect by the connecting terminal copper bar with the customer power supply line, institute
The detection probe for stating temperature sensor is fixed on the connecting terminal copper bar.
Preferably, corresponding temperature parameter is less than corresponding temperature when the electrical relay disconnects when the electrothermal relay disconnects
Spend parameter.
Preferably, the microcontroller is connect with the customer power supply line, the multifunctional protection device further include:
Current overload protection circuit, the current overload protection circuit by the microcontroller respectively with the GSM mould
Block is connected with winding wiring terminal.
Preferably, further includes:
Circuit is arranged in overload current, and the overload current setting circuit is connect with the microcontroller.
Preferably, further includes:
Short-circuit protection circuit, the short-circuit protection circuit by the microcontroller respectively with the gsm module and coil
Connecting terminal connection.
Preferably, further includes:
Leakage protection circuit, the leakage protection circuit by the microcontroller respectively with the gsm module and coil
Connecting terminal connection.
Preferably, further includes:
Triode, the base stage of the triode are connect with the microcontroller, the collector of the triode and the line
Enclose connecting terminal connection, the emitter ground connection of the triode.
On the other hand, a kind of ammeter box, including any of the above-described kind of multifunctional protection device are provided, further includes:
Cabinet, the cabinet is interior to be equipped with accommodating cavity, and the multifunctional protection device is fixed in the accommodating cavity.
Preferably, the bottom of the cabinet is equipped with cable-through hole, and the electric energy meter supply lines and customer power supply line both pass through institute
Cable-through hole is stated to connect with the multifunctional protection device.
The beneficial effects of the present invention are: a kind of multifunctional protection device and ammeter box are provided, both have electricity protection
Function, and can automatically reset, the workload of electric power personnel is reduced, working efficiency is improved.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram for the multifunctional protection device that embodiment provides.
In figure:
1, mobile terminal；
2, gsm module；3, temperature sensor；4, current overload protection circuit；5, circuit is arranged in overload current；6, short circuit is protected
Protection circuit；7, leakage protection circuit；
8, microcontroller；
9, electric energy meter supply lines；10, electrical relay；11, electrothermal relay；12, connecting terminal copper bar；13, customer power supply line；
14, triode.
Specific embodiment
To enable the purpose of the present invention, feature, advantage more obvious and understandable, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that reality disclosed below
Applying example is only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
The present embodiment provides a kind of ammeter box, including a kind of multifunctional protection device and cabinet, it is equipped with and holds in the cabinet
Chamber is set, the multifunctional protection device is fixed in the accommodating cavity.The bottom of the cabinet is equipped with cable-through hole, electric energy meter power supply
Line 9 and customer power supply line 13 both pass through the cable-through hole and connect with the multifunctional protection device.
Referring to Fig. 1, multifunctional protection device includes electrothermal relay 11, electrical relay 10, microcontroller 8, temperature sensor
3, gsm module 2 and mobile terminal 1.The electrothermal relay 11 include hot movable contact and hot stationary contact, the hot movable contact be used for
Customer power supply line 13 connects.The electrical relay 10 includes electronic contact, electric stationary contact and winding wiring terminal, the electronic touching
Point is connect with the hot stationary contact, and the electricity stationary contact with electric energy meter supply lines 9 for connecting.The microcontroller 8 with it is described
The connection of winding wiring terminal.The temperature sensor 3 is connect with the microcontroller 8, for carrying out temperature detection.The GSM
Module 2 is connect with the microcontroller 8, for sending warning short message.The mobile terminal 1 is wirelessly communicated with the gsm module 2
Connection, for receiving warning short message.It is understood that the flow direction of electric current is electric energy meter supply lines 9 --- electrical relay
10 --- electrothermal relay 11 --- customer power supply lines 13.
In the present embodiment, multifunctional protection device further includes connecting terminal copper bar 12, and the electrothermal relay 11 passes through described
Connecting terminal copper bar 12 is connect with the customer power supply line 13, and the detection probe of the temperature sensor 3 is fixed on the wiring
On terminal copper bar 12.Therefore, the temperature that temperature sensor 3 detects can be regarded as the temperature of customer power supply line 13.
Preferably, corresponding temperature parameter is less than corresponding when the electrical relay 10 disconnects when the electrothermal relay 11 disconnects
Temperature parameter.
The microcontroller 8 is connect with the customer power supply line 13.It is understood that microcontroller 8 and customer power supply
The processing circuits such as rectification, filtering, decompression and amplifying circuit can be set between line 13, and then taking electricity from customer power supply line 13
Know the size of the electric current and voltage in current supply circuit.The state of electrothermal relay 11 can also be known, for example, if electrical relay 10
Electric current for closed state and customer power supply line 13 is zero, then illustrates that electrothermal relay 11 is off-state；If electrical relay 10 is
The electric current of closed state and customer power supply line 13 is not zero, then illustrates that electrothermal relay 11 is closed state.Ammeter box uses micro-control
The light current of device 8 processed controls forceful electric power, is provided with current limiting safeguard resistor, forceful electric power can effectively be isolated burns out microcontroller 8, thus
The multi-faceted protective effect such as overload protection short-circuit protection and earth leakage protective can be played, gsm module 2 has been incorporated, may be implemented
The long-range reception failure short message of ammeter box operates.
The multifunctional protection device further includes current overload protection circuit 4, and the current overload protection circuit 4 passes through institute
Microcontroller 8 is stated to connect with the gsm module 2 and winding wiring terminal respectively.Further, multifunctional protection device further includes
Circuit 5 is arranged in overload current, and the overload current setting circuit 5 is connect with the microcontroller 8.It is understood that user
5 sets itself mistake of circuit can be arranged by overload current according to the cross-sectional area of electric wire in own home or quantity of electric appliance etc.
Electric current is carried, when the electric current on customer power supply line 13 is more than overload current, microcontroller 8 takes overcurrent protection measure, i.e.,
It disconnects electrical relay 10 and sends information warning to mobile terminal 1.
Multifunctional protection device further includes short-circuit protection circuit 6 and leakage protection circuit 7.The short-circuit protection circuit 6 is logical
The microcontroller 8 is crossed to connect with the gsm module 2 and winding wiring terminal respectively.The leakage protection circuit 7 passes through described
Microcontroller 8 is connect with the gsm module 2 and winding wiring terminal respectively.
Preferably, multifunctional protection device further includes triode 14, the base stage of the triode 14 and the microcontroller 8
Connection, the collector of the triode 14 are connect with the winding wiring terminal, the emitter ground connection of the triode 14.
The present embodiment provides a kind of course of work of ammeter box is as follows:
1. electric energy meter supply lines 9 successively supplies user through maximum current relay 10, electrothermal relay 11 and connecting terminal copper bar 12
Electric wire 13 is powered, and leads to route adstante febre when electric current is excessive, the hot movable contact and hot stationary contact of electrothermal relay 11 can be heated
It disconnects, to disconnect current supply circuit, guarantees Electrical Safety；After a period of time, temperature decline, hot movable contact and hot stationary contact restore
Contact, power supply line is connected automatically, simple and convenient without carrying out the operation of drawing disconnecting link manually；
2. meanwhile the temperature of 3 pair of wire connection terminals copper bar 12 of temperature sensor is detected, if temperature sensor 3 detects
Temperature be more than setting value, just power to winding wiring terminal, disconnect electronic contact and electric stationary contact.Therefore, electrical relay 10
The safety device that can be used as electrothermal relay 11 prevents electrothermal relay 11 from failing, alternatively, when electrothermal relay 11 is in a timing
In when continually being disconnected and be closed automatically, it is abnormal to illustrate that route occurs, electrical relay 10 can also be made to disconnect, waits electric
Power personnel come to overhaul, and prevent from causing bigger safety accident；
3. since microcontroller 8 takes electricity from customer power supply line 13, it is possible to according to the electricity on customer power supply line 13
Stream size carries out the detection such as current overload, short circuit and electric leakage to it；If it is detected that there are the feelings such as current overload, short circuit and electric leakage
Condition, microcontroller 8 can directly control the disconnection of electrical relay 10, while be sent by gsm module 2 to specified mobile terminal 1
Warn short message, such as warning short message can be " there is current overload in the route that Intelligent ammeter box has been detected by your family, ask and
When handle ", or " Intelligent ammeter box have been detected by the route in your family occur short circuit, please handle in time ", or " intelligence electricity
The route that electricity box have been detected by your family leaks electricity, and please handles in time ".
Preferably, reclosing circuit can be set in microcontroller 8, i.e., after electrical relay 10 disconnects, a period of time
It powers afterwards from trend winding wiring, is closed electrical relay 10.
It should be noted that current overload protection circuit 4, overload current setting circuit 5, short-circuit protection circuit 6 and electric leakage
Existing circuit composition can be used in the specific circuit composition such as protection circuit 7, this is not the description emphasis of the present embodiment, therefore not
It repeats.
Ammeter box provided in this embodiment has following advantages:
1. various protection components are integrated into a module, it is embedded into cabinet, small volume and less weight, installation maintenance is simple,
Practical value is high, easy to spread；
2. not having to replacement fuse compared with traditional fuse switch, saving material, save the cost can save
Labour；
3. using advanced gsm module 2, the line fault information of user's family can timely be sent to the movement of user
In terminal 1；
4. using electrothermal relay 11, it can not only play the role of overload protection, can also reuse；
5. reclosing function, even switch trip is arranged, user's closing by hand is not needed yet, it is efficient and convenient, it reduces
The workload of power supply station's low pressure repairing.
The description of above-described embodiment is provided with the purpose of illustration and description.It is not intended to exhaustion or the limitation disclosure.It is specific
Embodiment individual component or feature be generally free from the limitation of specific embodiment, but in where applicable, even if not having
It is specifically illustrated in or describes, can be interchanged and for selected embodiment.In many aspects, identical element or feature
Also it can change.This variation is not to be regarded as a departure from the disclosure, and all this modifications mean to be included in the disclosure
In the range of.
Example embodiment is provided, so that the disclosure will become thoroughly, and the range fully will be conveyed to ability
Technical staff in domain.In order to understand thoroughly embodiment of the disclosure, numerous details, such as specific component, device and side are illustrated
The example of method.Clearly for those skilled in that art, do not need using specific details, example embodiment can be with many
Different forms is implemented, and neither should be construed as limiting the scope of the present disclosure.In some example embodiments, not right
Well known process, well known apparatus structure and well known technology are described in detail.
Here, using specialized vocabulary only for describing the purpose of specific example embodiment, and not mean to limit
Purpose.Unless context clearly makes opposite expression, singular " one (a) " as used herein, " one (an) "
" being somebody's turn to do (the) " can mean also to include plural form.Term " including (comprises) ", " including (comprising) ",
" including (including) " and it is included in the interior meaning " with (having) ", and therefore specifies and there is stated spy
Sign, entirety, step, operation, element and/or component, but do not exclude the presence of or extraly have other spies of one or more
Sign, entirety, step, operation, element, component and/or combination thereof.Unless explicitly indicated the order executed, it is described herein
This method step, handling and operation are not interpreted as centainly needing to execute according to the specific order discussed and shown.Should also
Understand, it can be using additional or selectable step.
When element or layer be known as " ... on ", " with ... engage ", " being connected to " or " being connected to " another
Element or layer can be and engage, be connected to or couple directly on another element or layer, with another element or layer
To another element or layer, there may also be intervenient element or layers.In contrast, when element or layer are known as " straight
On connecing ... ", " with ... directly engage ", " being directly connected to " or " being directly coupled to " another element or layer, then may be used
Intervenient element or layer can be not present.Other words for being used to describe element relation should explain (example in a similar way
Such as, " ... between " and " between directly existing ... ", " adjacent " and " direct neighbor " etc.).Term "and/or" as used herein
Any and all combination of one or more including associated the enumerated project.Although may have been used art herein
Language first, second, third, etc. to describe various elements, component, regions, layers, and/or portions, these elements, component, region,
Layer and/or part are not limited by these terms.These terms can be served only for an element, component, region or part
It is distinguished with another element, component, region or part.Unless clearly showed that by context, herein using such as term " the
One ", the term of " second " and other numerical value is it is not intended that sequence or order.Therefore, lower section discuss first element, component,
Region, layer or part can be implemented using second element, component, region, layer or partial term without departing from the example
The introduction of example.
The relative terms in space, such as "inner", "outside", " below ", " in so-and-so lower section ", " lower part ", " top ",
" top " etc. can use herein for convenient for the purpose of description, to describe an element or feature as illustrated in the drawing and another
Relationship between outer one or more element or feature.The relative terms in space can mean the orientation comprising describing except the figure
Except the device different orientations.For example, if overturn the device in the figure, then it is described as " in other elements or feature
Element of the lower section " either " below element or feature " will be oriented to " in the top of other elements or feature ".Therefore,
Exemplary term " ... lower section " may include upwardly and downwardly two kinds orientations.The device can be otherwise orientated,
Such as it is rotated by 90 ° or other orientations, and explained with the opposite description in space herein.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of multifunctional protection device characterized by comprising
Electrothermal relay, the electrothermal relay include hot movable contact and hot stationary contact, and the hot movable contact is used for and customer power supply line
Connection；
Electrical relay, the electrical relay include electronic contact, electric stationary contact and winding wiring terminal, the electronic contact and institute
Hot stationary contact connection is stated, the electricity stationary contact with electric energy meter supply lines for connecting；
Microcontroller, the microcontroller are connect with the winding wiring terminal；
Temperature sensor, the temperature sensor are connect with the microcontroller, for carrying out temperature detection；
Gsm module, the gsm module are connect with the microcontroller, for sending warning short message；
Mobile terminal, the mobile terminal and the gsm module communicate to connect, for receiving warning short message.
2. multifunctional protection device according to claim 1, which is characterized in that further include:
Connecting terminal copper bar, the electrothermal relay are connect by the connecting terminal copper bar with the customer power supply line, the temperature
The detection probe of degree sensor is fixed on the connecting terminal copper bar.
3. multifunctional protection device according to claim 2, which is characterized in that the electrothermal relay corresponding temperature when disconnecting
It spends parameter and is less than corresponding temperature parameter when the electrical relay disconnects.
4. multifunctional protection device according to claim 1, which is characterized in that the microcontroller and the customer power supply
Line connection, the multifunctional protection device further include:
Current overload protection circuit, the current overload protection circuit by the microcontroller respectively with the gsm module and
The connection of winding wiring terminal.
5. multifunctional protection device according to claim 4, which is characterized in that further include:
Circuit is arranged in overload current, and the overload current setting circuit is connect with the microcontroller.
6. multifunctional protection device according to claim 4, which is characterized in that further include:
Short-circuit protection circuit, the short-circuit protection circuit by the microcontroller respectively with the gsm module and winding wiring
Terminal connection.
7. multifunctional protection device according to claim 1, which is characterized in that further include:
Leakage protection circuit, the leakage protection circuit by the microcontroller respectively with the gsm module and winding wiring
Terminal connection.
8. multifunctional protection device according to claim 1, which is characterized in that further include:
Triode, the base stage of the triode are connect with the microcontroller, and the collector of the triode connects with the coil
Line terminals connection, the emitter ground connection of the triode.
9. a kind of ammeter box, including multifunctional protection device according to any one of claims 1 to 8, which is characterized in that also wrap
It includes:
Cabinet, the cabinet is interior to be equipped with accommodating cavity, and the multifunctional protection device is fixed in the accommodating cavity.
10. ammeter box according to claim 9, which is characterized in that the bottom of the cabinet is equipped with cable-through hole, the electric energy
Table supply lines and customer power supply line both pass through the cable-through hole and connect with the multifunctional protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910731168.2A CN110311348A (en) | 2019-08-08 | 2019-08-08 | Multifunctional protection device and ammeter box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910731168.2A CN110311348A (en) | 2019-08-08 | 2019-08-08 | Multifunctional protection device and ammeter box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110311348A true CN110311348A (en) | 2019-10-08 |
Family
ID=68082093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910731168.2A Pending CN110311348A (en) | 2019-08-08 | 2019-08-08 | Multifunctional protection device and ammeter box |
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| Country | Link |
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| CN (1) | CN110311348A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993001640A1 (en) * | 1991-07-02 | 1993-01-21 | Otter Controls Limited | Improvements relating to thermally-responsive controls |
| EP1701424A1 (en) * | 2005-03-08 | 2006-09-13 | Cirprotec, S.L. | Combined device of electric protection at low voltage against transient and extended over-voltage with automatic reconnection |
| CN201656420U (en) * | 2009-12-31 | 2010-11-24 | 余博贺 | Three-phase auto reclosing electricity leakage protection switch |
| CN102931626A (en) * | 2011-08-12 | 2013-02-13 | 国家电网公司 | Circuit capable of protecting fuse-type disconnecting switch in rural distribution network |
| CN210016266U (en) * | 2019-08-08 | 2020-02-04 | 广东电网有限责任公司 | Multifunctional protection device and electric meter box |
-
2019
- 2019-08-08 CN CN201910731168.2A patent/CN110311348A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993001640A1 (en) * | 1991-07-02 | 1993-01-21 | Otter Controls Limited | Improvements relating to thermally-responsive controls |
| EP1701424A1 (en) * | 2005-03-08 | 2006-09-13 | Cirprotec, S.L. | Combined device of electric protection at low voltage against transient and extended over-voltage with automatic reconnection |
| CN201656420U (en) * | 2009-12-31 | 2010-11-24 | 余博贺 | Three-phase auto reclosing electricity leakage protection switch |
| CN102931626A (en) * | 2011-08-12 | 2013-02-13 | 国家电网公司 | Circuit capable of protecting fuse-type disconnecting switch in rural distribution network |
| CN210016266U (en) * | 2019-08-08 | 2020-02-04 | 广东电网有限责任公司 | Multifunctional protection device and electric meter box |
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