CN105490391A - House generator inverse power transmission prevention control equipment - Google Patents
House generator inverse power transmission prevention control equipment Download PDFInfo
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- CN105490391A CN105490391A CN201610038655.7A CN201610038655A CN105490391A CN 105490391 A CN105490391 A CN 105490391A CN 201610038655 A CN201610038655 A CN 201610038655A CN 105490391 A CN105490391 A CN 105490391A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 55
- 230000002265 prevention Effects 0.000 title abstract 2
- 230000006698 induction Effects 0.000 claims abstract description 21
- 230000007935 neutral effect Effects 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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- H02J13/0075—
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- 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
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- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses house generator inverse power transmission prevention control equipment comprising a detection device which is connected with the low-voltage line of a transformer and detects and respectively reduces first phase voltage, second phase voltage, third phase voltage, first phase induction current, second phase induction current and third phase induction current of the low-voltage line by a preset proportion; a control device which is connected with the actuating coil of a low voltage master switch and the detection device, calculates the active loss value of the transformer according to preset calculation rules and first phase voltage, second phase voltage, third phase voltage, first phase induction current, second phase induction current and third phase induction current, and triggers the actuating coil to drive the low voltage master switch to be disconnected if the active loss value is a negative value; and a cabinet body which comprises a cabinet door, wherein the control device is arranged in the cabinet body. According to the technical scheme, a situation that a user starts a house generator to perform inverse power transmission to a power grid after power outage of the power grid can be effectively prevented.
Description
Technical field
The present invention relates to technical field of electric power, particularly relate to a kind of anti-house generator control appliance of falling power transmission.
Background technology
Along with developing rapidly of power grid construction, user have a power failure probability greatly reduce, but power system device maintenance and some fortuitous events under, or can the short time user is had a power failure.Now, some users, in order to avoid the interruption of producing, often open the electrical power generators provided for oneself, and are directly connected to supply network (i.e. electrical network).When not disconnecting the low pressure master switch in the low-voltage circuit of transformer user, the voltage that generator sends will be elevated to high voltage (such as, 10kV voltage) by transformer and deliver to electrical network afterwards.If now there are electric power overhaul personnel overhauling circuit, the personnel that will cause get an electric shock casualty accident.
And in existing technology, also not used for preventing the house generator of user from falling the equipment of power transmission, cause above-mentioned electric shock accidents odds larger, potential safety hazard is brought to electric power system and maintainer, therefore, need a kind of house generator of user that can prevent badly and fall the equipment of power transmission, thus avoid the generation of above-mentioned electric shock accidents.
Summary of the invention
In view of this, the invention provides a kind of anti-house generator control appliance of falling power transmission, after effectively can preventing grid cut-off, user opens house generator and falls the situation of power transmission to electrical network, thus can effectively avoid falling because of user's house generator the potential safety hazard that power transmission brings to electric power system and maintainer.
For achieving the above object, the invention provides following technical scheme:
A kind of anti-house generator control appliance of falling power transmission, comprising:
Be connected with the low-voltage circuit of transformer, detect the first-phase voltage of described low-voltage circuit, second-phase voltage, third phase voltage, first-phase induced current, second-phase induced current and third phase induced current, described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current are reduced respectively the checkout gear of preset ratio; Described first-phase voltage is the voltage between the first phase line and the neutral line, described second-phase voltage is the voltage between the second phase line and the described neutral line, described third phase voltage is the voltage between third phase line and the described neutral line, described first-phase induced current is that the described first-phase line current of induction changes the induced current produced, described second-phase induced current is that the described second-phase line current of induction changes the induced current produced, and described third phase induced current is that the described third phase line current of induction changes the induced current produced;
Be connected with described checkout gear with the actuation coil of low pressure master switch, according to presetting computation rule and described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current, calculate the active loss value of described transformer, if the active loss value of described transformer is negative value, trigger the control device that described actuation coil drives described low pressure master switch to disconnect;
And cabinet, described cabinet comprises cabinet door, and it is inner that described control device is positioned at described cabinet.
Preferably, described checkout gear comprises:
Be connected with the described neutral line with described first phase line, detect described first-phase voltage, described first-phase voltage is reduced the first voltage transformer of described preset ratio;
Be connected with the described neutral line with described second phase line, detect described second-phase voltage, described second-phase voltage is reduced the second voltage transformer of described preset ratio;
Be connected with the described neutral line with described third phase line, detect described third phase voltage, described third phase voltage is reduced the tertiary voltage instrument transformer of described preset ratio;
Winding is arranged in described first phase line, detects described first-phase induced current, described first-phase induced current is reduced the first current transformer of described preset ratio;
Winding is arranged in described second phase line, detects described second-phase induced current, described second-phase induced current is reduced the second current transformer of described preset ratio;
Winding is arranged on described third phase line, detects described third phase induced current, described third phase induced current is reduced the 3rd current transformer of described preset ratio.
Preferably, described first voltage transformer, described second voltage transformer, described tertiary voltage instrument transformer, described first current transformer, described second current transformer are connected with described control device respectively with described 3rd current transformer;
It is inner that described first voltage transformer, described second voltage transformer and described tertiary voltage instrument transformer are arranged on described cabinet.
Preferably, described control device comprises:
Be connected with described 3rd current transformer with described first voltage transformer, described second voltage transformer, described tertiary voltage instrument transformer, described first current transformer, described second current transformer, described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current be converted to the analog to digital converter of digital signal by analog signal;
And be connected with described analog to digital converter, according to described default computation rule and the described first-phase voltage of digital signal, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current, calculate the active loss value of described transformer, if the active loss value of described transformer is negative value, trigger the controller that described actuation coil drives described low pressure master switch to disconnect.
Preferably, described control device also comprises:
Show the display screen of described low pressure master switch open and-shut mode.
Preferably, described control device also comprises:
When described low pressure master switch disconnects, carry out luminous indicator light.
Preferably, described control device also comprises:
Detect the button of the controling parameters of user's input, described controling parameters is for adjusting described default computation rule.
Preferably, described control device also comprises:
Detect the controling parameters of user's input, and show the touch screen of described low pressure master switch open and-shut mode, described controling parameters is for adjusting described default computation rule.
Preferably, described control device also comprises:
When described low pressure master switch disconnects, send the loud speaker of prompt tone.
Preferably, described control device also comprises:
When described low pressure master switch disconnects, receive the low pressure master switch disconnection information that described controller sends, described low pressure master switch is disconnected the wireless communication module that information is sent to setting server and/or mobile terminal; Described wireless communication module comprises antenna, and it is outside that described antenna is arranged on described cabinet.
Known via above-mentioned technical scheme, compared with prior art, the invention provides a kind of anti-house generator control appliance of falling power transmission.The anti-house generator control appliance of falling power transmission provided by the invention, comprise: be connected with the low-voltage circuit of transformer, detect the first-phase voltage of described low-voltage circuit, second-phase voltage, third phase voltage, first-phase induced current, second-phase induced current and third phase induced current, described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current are reduced respectively the checkout gear of preset ratio; Concrete, described first-phase voltage is the voltage between the first phase line and the neutral line, described second-phase voltage is the voltage between the second phase line and the described neutral line, described third phase voltage is the voltage between third phase line and the described neutral line, described first-phase induced current is that the described first-phase line current of induction changes the induced current produced, described second-phase induced current is that the described second-phase line current of induction changes the induced current produced, and described third phase induced current is that the described third phase line current of induction changes the induced current produced; Be connected with described checkout gear with the actuation coil of low pressure master switch, according to presetting computation rule and described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current, calculate the active loss value of described transformer, if the active loss value of described transformer is negative value, trigger the control device that described actuation coil drives described low pressure master switch to disconnect; And cabinet, described cabinet comprises cabinet door, and it is inner that described control device is positioned at described cabinet.Concrete, if the described active loss value that calculates of described control device on the occasion of, then illustrate that now electrical network does not have a power failure and by described transformer to low-voltage circuit normal power supply; If the described active loss value that described control device calculates is negative value, then illustrate that now electrical network has a power failure, and the generator provided for oneself of user falls power transmission by described transformer to electrical network, now, the anti-house generator control appliance of falling power transmission provided by the invention, the actuation coil of the automatic trigger low-voltage master switch of described control device, makes described actuation coil drive described low pressure master switch to disconnect, thus the generator electricity that can realize preventing user from providing for oneself falls power transmission to electrical network.Therefore, technical scheme provided by the invention, after effectively can preventing grid cut-off, user opens house generator and falls the situation of power transmission to electrical network, thus can effectively avoid falling because of user's house generator the potential safety hazard that power transmission brings to electric power system and maintainer.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structure chart of a kind of anti-house generator control appliance of falling power transmission that Fig. 1 provides for the embodiment of the present invention;
The structure chart of another anti-house generator control appliance of falling power transmission that Fig. 2 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in further detail prior art and the present invention below in conjunction with the drawings and specific embodiments.
Embodiment
Refer to Fig. 1, the structure chart of a kind of anti-house generator control appliance of falling power transmission that Fig. 1 provides for the embodiment of the present invention, the structure chart of another anti-house generator control appliance of falling power transmission that Fig. 2 provides for the embodiment of the present invention.As depicted in figs. 1 and 2, this anti-house generator control appliance of falling power transmission, comprising:
Be connected with the low-voltage circuit of transformer 1, detect the first-phase voltage of described low-voltage circuit, second-phase voltage, third phase voltage, first-phase induced current, second-phase induced current and third phase induced current, described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current are reduced respectively the checkout gear 2 of preset ratio;
Concrete, described first-phase voltage is the voltage between the first phase line A and neutral line N, and described second-phase voltage is the voltage between the second phase line B and described neutral line N, and described third phase voltage is the voltage between third phase line C and described neutral line N; Described first-phase induced current is the induced current that the described first phase line A curent change of induction produces, described second-phase induced current is the induced current that the described second phase line B curent change of induction produces, and described third phase induced current is the induced current that the described third phase line C curent change of induction produces.
Be connected with described checkout gear 2 with the actuation coil 31 of low pressure master switch 3, according to presetting computation rule and described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current, calculate the active loss value of described transformer 1, if the active loss value of described transformer 1 is negative value, trigger the control device 4 that described actuation coil 31 drives described low pressure master switch 3 to disconnect;
And cabinet 5, described cabinet 5 comprises cabinet door, and it is inner that described control device 4 is positioned at described cabinet 5.
Concrete, if the described active loss value that calculates of described control device 4 on the occasion of, then illustrate that now electrical network does not have a power failure and by described transformer 1 to low-voltage circuit normal power supply; If the described active loss value that described control device calculates is negative value, then illustrate that now electrical network has a power failure, and the generator provided for oneself of user falls power transmission by described transformer 1 to electrical network, now, the anti-house generator control appliance of falling power transmission provided by the invention, the actuation coil 31 of the automatic trigger low-voltage master switch 3 of described control device, makes described actuation coil 31 drive described low pressure master switch 3 to disconnect, thus the generator electricity that can realize preventing user from providing for oneself falls power transmission to electrical network.
Therefore, the anti-house generator control appliance of falling power transmission that the embodiment of the present invention provides, after effectively can preventing grid cut-off, user opens house generator and falls the situation of power transmission to electrical network, thus can effectively avoid falling because of user's house generator the potential safety hazard that power transmission brings to electric power system and maintainer.
In addition; consider the impact of bad weather (such as strong wind, sleety weather); and in order to prevent artificial destruction, described control device 4 is not suitable for being directly exposed in external environment condition, therefore; the anti-house generator control appliance of falling power transmission provided by the invention also comprises cabinet 5; it is inner that described control device 4 is positioned at described cabinet 5, and described cabinet 5 comprises cabinet door, optionally; also comprise lockset, thus described control device 4 can be protected preferably to exempt from destruction.
Optionally, the anti-house generator control appliance of falling power transmission that the embodiment of the present invention provides, described checkout gear 2 comprises:
Be connected with described neutral line N with described first phase line A, detect described first-phase voltage, described first-phase voltage is reduced the first voltage transformer 21 of described preset ratio;
Be connected with described neutral line N with described second phase line B, detect described second-phase voltage, described second-phase voltage is reduced the second voltage transformer 22 of described preset ratio;
Be connected with described neutral line N with described third phase line C, detect described third phase voltage, described third phase voltage is reduced the tertiary voltage instrument transformer 23 of described preset ratio;
Winding is arranged on described first phase line A, detects described first-phase induced current, described first-phase induced current is reduced the first current transformer 24 of described preset ratio;
Winding is arranged on described second phase line B, detects described second-phase induced current, described second-phase induced current is reduced the second current transformer 25 of described preset ratio;
Winding is arranged on described third phase line C, detects described third phase induced current, described third phase induced current is reduced the 3rd current transformer 26 of described preset ratio.
Concrete; it is inner that described first voltage transformer 21, described second voltage transformer 22 and described tertiary voltage instrument transformer 23 are arranged on described cabinet 5, thus protect described first voltage transformer 21, described second voltage transformer 22 and described tertiary voltage instrument transformer 23 to exempt from adverse circumstances or artificial destruction better.
Concrete, described first voltage transformer 21, described second voltage transformer 22, described tertiary voltage instrument transformer 23, described first current transformer 24, described second current transformer 25 are connected with described control device 4 respectively with described 3rd current transformer 26.
Optionally, the anti-house generator control appliance of falling power transmission that the embodiment of the present invention provides, described control device 4 comprises:
Be connected with described 3rd current transformer 26 with described first voltage transformer 21, described second voltage transformer 22, described tertiary voltage instrument transformer 23, described first current transformer 24, described second current transformer 25, described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current are converted to the analog to digital converter 41 of digital signal by analog signal;
And be connected with described analog to digital converter 41, according to described default computation rule and the described first-phase voltage of digital signal, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current, calculate the active loss value of described transformer 1, if the active loss value of described transformer 1 is negative value, trigger the controller 42 that described actuation coil 31 drives described low pressure master switch 3 to disconnect.
Optionally, the anti-house generator control appliance of falling power transmission that the embodiment of the present invention provides, described control device 4 also comprises:
Show the display screen of described low pressure master switch open and-shut mode.
Optionally, described display screen is LCDs.
Optionally, the anti-house generator control appliance of falling power transmission that the embodiment of the present invention provides, described control device 4 also comprises:
Detect the button of the controling parameters of user's input, described controling parameters is for adjusting described default computation rule.Be understandable that, when user clicks described button, described controller 42 can respond, and then controls the controling parameters of described display screen display user input, adjusts described default computation rule to facilitate user.
Optionally, the anti-house generator control appliance of falling power transmission that the embodiment of the present invention provides, described control device 4 also comprises:
Detect the controling parameters of user's input, and show the touch screen of described low pressure master switch open and-shut mode, described controling parameters is for adjusting described default computation rule.
That is, described control device 4 can arrange the function that touch screen comes alternative described display screen and described button.
Optionally, the anti-house generator control appliance of falling power transmission that the embodiment of the present invention provides, described control device 4 also comprises:
When described low pressure master switch disconnects, carry out luminous indicator light.
Concrete, when described low pressure master switch disconnects, described controller 42 triggers described indicator light and carries out luminescence.
Optionally, described indicator light is light emitting diode lamp.
Optionally, the anti-house generator control appliance of falling power transmission that the embodiment of the present invention provides, described control device 4 also comprises:
When described low pressure master switch disconnects, send the loud speaker of prompt tone.
Concrete, when described low pressure master switch disconnects, described controller 42 triggers described loud speaker and sends prompt tone.
Optionally, the anti-house generator control appliance of falling power transmission that the embodiment of the present invention provides, described control device 4 also comprises:
When described low pressure master switch disconnects, receive the low pressure master switch disconnection information that described controller sends, described low pressure master switch is disconnected the wireless communication module that information is sent to setting server and/or mobile terminal; Described wireless communication module comprises antenna, and it is outside that described antenna is arranged on described cabinet.
Concrete, when described low pressure master switch disconnects, described controller 42 sends described low pressure master switch to described wireless communication module and disconnects information, trigger described wireless communication module and send described low pressure master switch disconnection information to setting server and/or mobile terminal, thus can realize reminding monitoring and/or electric power overhaul personnel low pressure master switch to disconnect, can service work be carried out.
Optionally, described wireless communication module is GPRS (GeneralPacketRadioService, general packet radio service technology) module.
Known via above-mentioned technical scheme, compared with prior art, the invention provides a kind of anti-house generator control appliance of falling power transmission.The anti-house generator control appliance of falling power transmission provided by the invention, comprise: be connected with the low-voltage circuit of transformer, detect the first-phase voltage of described low-voltage circuit, second-phase voltage, third phase voltage, first-phase induced current, second-phase induced current and third phase induced current, described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current are reduced respectively the checkout gear of preset ratio; Concrete, described first-phase voltage is the voltage between the first phase line and the neutral line, described second-phase voltage is the voltage between the second phase line and the described neutral line, described third phase voltage is the voltage between third phase line and the described neutral line, described first-phase induced current is that the described first-phase line current of induction changes the induced current produced, described second-phase induced current is that the described second-phase line current of induction changes the induced current produced, and described third phase induced current is that the described third phase line current of induction changes the induced current produced; And be connected with described checkout gear with the actuation coil of low pressure master switch, according to presetting computation rule and described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current, calculate the active loss value of described transformer, if the active loss value of described transformer is negative value, trigger the control device that described actuation coil drives described low pressure master switch to disconnect; And cabinet, described cabinet comprises cabinet door, and it is inner that described control device is positioned at described cabinet.Concrete, if the described active loss value that calculates of described control device on the occasion of, then illustrate that now electrical network does not have a power failure and by described transformer to low-voltage circuit normal power supply; If the described active loss value that described control device calculates is negative value, then illustrate that now electrical network has a power failure, and the generator provided for oneself of user falls power transmission by described transformer to electrical network, now, the anti-house generator control appliance of falling power transmission provided by the invention, the actuation coil of the automatic trigger low-voltage master switch of described control device, makes described actuation coil drive described low pressure master switch to disconnect, thus the generator electricity that can realize preventing user from providing for oneself falls power transmission to electrical network.Therefore, technical scheme provided by the invention, after effectively can preventing grid cut-off, user opens house generator and falls the situation of power transmission to electrical network, thus can effectively avoid falling because of user's house generator the potential safety hazard that power transmission brings to electric power system and maintainer.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the anti-house generator control appliance of falling power transmission, is characterized in that, comprising:
Be connected with the low-voltage circuit of transformer, detect the first-phase voltage of described low-voltage circuit, second-phase voltage, third phase voltage, first-phase induced current, second-phase induced current and third phase induced current, described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current are reduced respectively the checkout gear of preset ratio; Described first-phase voltage is the voltage between the first phase line and the neutral line, described second-phase voltage is the voltage between the second phase line and the described neutral line, described third phase voltage is the voltage between third phase line and the described neutral line, described first-phase induced current is that the described first-phase line current of induction changes the induced current produced, described second-phase induced current is that the described second-phase line current of induction changes the induced current produced, and described third phase induced current is that the described third phase line current of induction changes the induced current produced;
Be connected with described checkout gear with the actuation coil of low pressure master switch, according to presetting computation rule and described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current, calculate the active loss value of described transformer, if the active loss value of described transformer is negative value, trigger the control device that described actuation coil drives described low pressure master switch to disconnect;
And cabinet, described cabinet comprises cabinet door, and it is inner that described control device is positioned at described cabinet.
2. the anti-house generator control appliance of falling power transmission according to claim 1, it is characterized in that, described checkout gear comprises:
Be connected with the described neutral line with described first phase line, detect described first-phase voltage, described first-phase voltage is reduced the first voltage transformer of described preset ratio;
Be connected with the described neutral line with described second phase line, detect described second-phase voltage, described second-phase voltage is reduced the second voltage transformer of described preset ratio;
Be connected with the described neutral line with described third phase line, detect described third phase voltage, described third phase voltage is reduced the tertiary voltage instrument transformer of described preset ratio;
Winding is arranged in described first phase line, detects described first-phase induced current, described first-phase induced current is reduced the first current transformer of described preset ratio;
Winding is arranged in described second phase line, detects described second-phase induced current, described second-phase induced current is reduced the second current transformer of described preset ratio;
Winding is arranged on described third phase line, detects described third phase induced current, described third phase induced current is reduced the 3rd current transformer of described preset ratio;
It is inner that described first voltage transformer, described second voltage transformer and described tertiary voltage instrument transformer are arranged on described cabinet.
3. the anti-house generator control appliance of falling power transmission according to claim 2, it is characterized in that, described first voltage transformer, described second voltage transformer, described tertiary voltage instrument transformer, described first current transformer, described second current transformer are connected with described control device respectively with described 3rd current transformer.
4. the anti-house generator control appliance of falling power transmission according to claim 1, it is characterized in that, described control device comprises:
Be connected with described 3rd current transformer with described first voltage transformer, described second voltage transformer, described tertiary voltage instrument transformer, described first current transformer, described second current transformer, described first-phase voltage, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current be converted to the analog to digital converter of digital signal by analog signal;
And be connected with described analog to digital converter, according to described default computation rule and the described first-phase voltage of digital signal, described second-phase voltage, described third phase voltage, described first-phase induced current, described second-phase induced current and described third phase induced current, calculate the active loss value of described transformer, if the active loss value of described transformer is negative value, trigger the controller that described actuation coil drives described low pressure master switch to disconnect.
5. the anti-house generator control appliance of falling power transmission according to claim 4, it is characterized in that, described control device also comprises:
Show the display screen of described low pressure master switch open and-shut mode.
6. the anti-house generator control appliance of falling power transmission according to claim 4, it is characterized in that, described control device also comprises:
When described low pressure master switch disconnects, carry out luminous indicator light.
7. the anti-house generator control appliance of falling power transmission according to claim 5, it is characterized in that, described control device also comprises:
Detect the button of the controling parameters of user's input, described controling parameters is for adjusting described default computation rule.
8. the anti-house generator control appliance of falling power transmission according to claim 4, it is characterized in that, described control device also comprises:
Detect the controling parameters of user's input, and show the touch screen of described low pressure master switch open and-shut mode, described controling parameters is for adjusting described default computation rule.
9. the anti-house generator control appliance of falling power transmission according to claim 4, it is characterized in that, described control device also comprises:
When described low pressure master switch disconnects, send the loud speaker of prompt tone.
10. the anti-house generator control appliance of falling power transmission according to claim 4, it is characterized in that, described control device also comprises:
When described low pressure master switch disconnects, receive the low pressure master switch disconnection information that described controller sends, described low pressure master switch is disconnected the wireless communication module that information is sent to setting server and/or mobile terminal; Described wireless communication module comprises antenna, and it is outside that described antenna is arranged on described cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610038655.7A CN105490391A (en) | 2016-01-20 | 2016-01-20 | House generator inverse power transmission prevention control equipment |
Applications Claiming Priority (1)
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| CN201610038655.7A CN105490391A (en) | 2016-01-20 | 2016-01-20 | House generator inverse power transmission prevention control equipment |
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Cited By (1)
| 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 |
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| CN202633925U (en) * | 2012-06-29 | 2012-12-26 | 山东电力集团公司潍坊供电公司 | Power-grid inverted-feed protection device |
| JP2015164376A (en) * | 2014-02-28 | 2015-09-10 | 株式会社Ｎｔｔファシリティーズ | Power supply system, power source supply device, power supply control method in power supply system, and program |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202633925U (en) * | 2012-06-29 | 2012-12-26 | 山东电力集团公司潍坊供电公司 | Power-grid inverted-feed protection device |
| JP2015164376A (en) * | 2014-02-28 | 2015-09-10 | 株式会社Ｎｔｔファシリティーズ | Power supply system, power source supply device, power supply control method in power supply system, and program |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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Application publication date: 20160413 |