CN107069675A - A kind of high-low pressure transformation cabinet leakage controller system and method - Google Patents
A kind of high-low pressure transformation cabinet leakage controller system and method Download PDFInfo
- Publication number
- CN107069675A CN107069675A CN201710334918.3A CN201710334918A CN107069675A CN 107069675 A CN107069675 A CN 107069675A CN 201710334918 A CN201710334918 A CN 201710334918A CN 107069675 A CN107069675 A CN 107069675A
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- Prior art keywords
- module
- transformation cabinet
- control module
- cabinet
- temperature
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001131 transforming Effects 0.000 title claims abstract description 131
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 238000009423 ventilation Methods 0.000 claims abstract description 17
- 230000000052 comparative effect Effects 0.000 claims abstract description 14
- 230000035852 Tmax Effects 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 16
- 238000005516 engineering process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
Abstract
The invention discloses a kind of high-low pressure transformation cabinet leakage controller system and method, including:Detection of electrical leakage module, for detecting transformation cabinet leakage current I;Temperature detecting module, for gathering power transformation in-cabinet temperature T;Ventilation module, is aerated for the instruction according to control module to transformation cabinet inside;Alarm module, information warning is sent for the instruction according to control module;Power-off modular, is turned off for the instruction according to control module to transformation cabinet internal electric source;Control module, communicated to connect with detection of electrical leakage module, temperature detecting module, control module detects transformation cabinet leakage current I by detection of electrical leakage module, gathers power transformation in-cabinet temperature T by temperature detecting module, and be compared I with predetermined current threshold, and acted according to comparative result instruction control alarm module, power-off modular;T is compared with preset temperature threshold value, and acted according to comparative result instruction control ventilation module, alarm module, power-off modular.
Description
Technical field
The present invention relates to transformation cabinet control technology field, more particularly to a kind of high-low pressure transformation cabinet leakage controller system and side
Method.
Background technology
Transformation cabinet used at present is to incarnadine to be formed by connecting using sheet metal progress bending mostly, although this kind of structure can
Needs are used to meet transformation cabinet to a certain degree, but the religion of its production technology is complexity, and structural strength is relatively low, so as to cause distribution
The shock resistance of cabinet is poor, fragile, simultaneously because power distribution cabinet is operationally, installed in its internal each electric circuit equipment
Higher heat can be produced, while also suffering from the influence of external environment condition humidity and ambient temperature, causes electric electricity
The damage of pipeline equipment, triggers transformation cabinet internal electrical losses, so that the multiple location such as transformation cabinet outer container leaks electricity, often staff exists
When operating transformation cabinet, in this case it is not apparent that transformation cabinet inner case, when transformation cabinet leaks electricity, it will bring puzzlement to staff
Even life danger, when transformation cabinet leaks electricity, can cause transformation cabinet internal temperature to raise, so as to cause electric circuit equipment
Burning, brings immeasurable loss.
The content of the invention
Based on background technology exist technical problem, the present invention propose a kind of high-low pressure transformation cabinet leakage controller system and
Method.
High-low pressure transformation cabinet leakage controller system proposed by the present invention, including:
Detection of electrical leakage module, for detecting transformation cabinet leakage current I;
Temperature detecting module, for gathering power transformation in-cabinet temperature T;
Ventilation module, communicates to connect with control module, for the instruction action according to control module, transformation cabinet inside is entered
Row ventilation;
Alarm module, communicates to connect with control module, for the instruction action according to control module, sends information warning;
Power-off modular, is communicated to connect with control module, for the instruction action according to control module, to transformation cabinet inside electricity
Source is turned off;
Control module, is communicated to connect, control module passes through detection of electrical leakage module with detection of electrical leakage module, temperature detecting module
Detect that transformation cabinet leakage current I, control module gather power transformation in-cabinet temperature T by temperature detecting module, and by I and predetermined current
Threshold value is compared, and is acted according to comparative result instruction control alarm module, power-off modular;T is entered with preset temperature threshold value
Row compares, and is acted according to comparative result instruction control ventilation module, alarm module, power-off modular.
Preferably, the control module, specifically for:Alarm current I is provided with control module0, interruption current Imax, its
Middle I0<Imax;
Work as I0≤I<ImaxWhen, control module instruction control alarm module action;
Work as ImaxDuring≤I, control module instruction control power-off modular.
Preferably, the control module, specifically for:Alarm temperature T is provided with control module0, power-off temperature Tmax, its
Middle T0<Tmax;
Work as T0≤T<TmaxWhen, control module instruction control ventilation module action, until T<a T0When, control module instruction control
Ventilation module stopping action processed, wherein 0<a<1;
Work as Tmax<During T, the action of control module instruction control power-off modular, control module instruction alarm module work.
Preferably, the detection of electrical leakage module at least includes a detection of electrical leakage submodule.
Preferably, the temperature detecting module at least includes a temperature sensor.
A kind of high-low pressure transformation cabinet electric leakage control method, it is characterised in that including:
S1, detection transformation cabinet leakage current I;
S2, collection power transformation in-cabinet temperature T;
S3, I and predetermined current threshold be compared, and information warning issued the user with according to comparative result or cut-out becomes
Electric cabinet power supply;
S4, T and preset temperature threshold value be compared, and transformation cabinet is aerated according to comparative result or sent out to user
Go out information warning and cut off transformation cabinet power supply.
Preferably, step S3, is specifically included:Predetermined current threshold includes alarm current I0, interruption current Imax, wherein I0<
Imax;
Work as I0≤I<ImaxWhen, issue the user with information warning;
Work as ImaxDuring≤I, transformation cabinet power supply is cut off.
Preferably, step S4, is specifically included:Preset temperature threshold value includes alarm temperature T0, power-off temperature Tmax, wherein T0<
Tmax;
Work as T0≤T<TmaxWhen, transformation cabinet is aerated, until T<a T0When, stopping is aerated to transformation cabinet, wherein 0
<a<1;
Work as Tmax<During T, the action of control module instruction control power-off modular, control module instruction alarm module work to user
Send information warning and cut off transformation cabinet power supply.
Preferably, in step s 2, power transformation in-cabinet temperature T is gathered by temperature sensor.
The present invention is compared by detecting the current information in transformation cabinet, and by the leakage current detected and predetermined current
Compared with, when the leakage current detected be higher than alarm current when, information warning will be sent to staff, when detect electric leakage electricity
When stream is higher than interruption current, by the power supply in directly cut-out transformation cabinet, while by gathering electric cabinet internal temperature, temperature will be collected
Degree is compared with preset temperature, when collecting temperature higher than alarm temperature, transformation cabinet will be aerated, and be reduced transformation cabinet
Internal temperature, when when collecting temperature higher than power-off temperature, by the power supply in directly cut-out transformation cabinet.
In this way, according to detection transformation cabinet leakage current, when transformation cabinet leaks electricity, staff is warned,
In the case that drain conditions are serious, transformation cabinet is powered off, it is to avoid staff enters in the case of unwitting to transformation cabinet
Row operation, so as to bring puzzlement even life danger to staff, while by gathering the temperature in transformation cabinet, when electric leakage or
When external cause causes temperature drift in transformation cabinet, cooling is aerated to transformation cabinet, by power distribution cabinet internal temperature control suitable
In suitable scope, when temperature is too high, transformation cabinet is powered off, it is to avoid transformation cabinet burns, damage transformation cabinet bring through
Ji loss.
Brief description of the drawings
Fig. 1 is a kind of module diagram of high-low pressure transformation cabinet leakage controller system;
Fig. 2 is a kind of method flow diagram of high-low pressure transformation cabinet electric leakage control method.
Embodiment
Reference picture 1, a kind of high-low pressure transformation cabinet leakage controller system proposed by the present invention, including:
Detection of electrical leakage module, for detecting transformation cabinet leakage current I;
Detection of electrical leakage module at least includes a detection of electrical leakage submodule;
In the present embodiment, the leakage current of transformation cabinet is detected by least one detection of electrical leakage submodule.
Temperature detecting module, for gathering power transformation in-cabinet temperature T;
Temperature detecting module at least includes a temperature sensor;
In the present embodiment, power transformation in-cabinet temperature is acquired by least one temperature sensor block.
Ventilation module, communicates to connect with control module, for the instruction action according to control module, transformation cabinet inside is entered
Row ventilation.
Alarm module, communicates to connect with control module, for the instruction action according to control module, sends information warning;
Power-off modular, is communicated to connect with control module, for the instruction action according to control module, to transformation cabinet inside electricity
Source is turned off;
Control module, is communicated to connect, control module passes through detection of electrical leakage module with detection of electrical leakage module, temperature detecting module
Detect that transformation cabinet leakage current I, control module gather power transformation in-cabinet temperature T by temperature detecting module, and by I and predetermined current
Threshold value is compared, and is acted according to comparative result instruction control alarm module, power-off modular;T is entered with preset temperature threshold value
Row compares, and is acted according to comparative result instruction control ventilation module, alarm module, power-off modular.
Control module, specifically for:Alarm current I is provided with control module0, interruption current Imax, wherein I0<Imax;
Work as I0≤I<ImaxWhen, control module instruction control alarm module action;
Work as ImaxDuring≤I, control module instruction control power-off modular.
Control module, specifically for:Alarm temperature T is provided with control module0, power-off temperature Tmax, wherein T0<Tmax;
Work as T0≤T<TmaxWhen, control module instruction control ventilation module action, until T<a T0When, control module instruction control
Ventilation module stopping action processed, wherein 0<a<1;
Work as Tmax<During T, the action of control module instruction control power-off modular, control module instruction alarm module work;
In the present embodiment, the leakage current and predetermined current that control module detects detection of electrical leakage module are compared
Compared with when the leakage current that detection of electrical leakage module is detected is higher than alarm current, control module controls alarm module to work people
Member sends information warning, it is to avoid staff carries out operation to transformation cabinet in the case of unwitting and brings unnecessary trouble,
When the leakage current that detection of electrical leakage module is detected is higher than interruption current, control module control power-off modular directly cuts off power transformation
Power supply in cabinet, it is to avoid staff carries out operation to transformation cabinet in the case of unwitting and brings life danger;Control module
The power transformation in-cabinet temperature and preset temperature that temperature detecting module is collected are compared, when the temperature in transformation cabinet is higher than alarm
During temperature, control module control ventilation module is aerated to transformation cabinet, when the temperature in transformation cabinet is higher than power-off temperature, control
Molding block control power-off modular directly cuts off the power supply in transformation cabinet.
Reference picture 2, a kind of high-low pressure transformation cabinet electric leakage control method proposed by the present invention, it is characterised in that including:
Step S1, detection transformation cabinet leakage current I;
In the present embodiment, by detecting the leakage current of transformation cabinet, judge whether leaked electricity in transformation cabinet.
Step S2, collection power transformation in-cabinet temperature T;
In this step, power transformation in-cabinet temperature T is gathered by temperature sensor;
In the present embodiment, transformation cabinet internal temperature is gathered by temperature sensor, so as to be carried out to transformation cabinet corresponding
Operation.
Step S3, I is compared with predetermined current threshold, and is issued the user with information warning according to comparative result or cut
Disconnected transformation cabinet power supply;
This step is specifically included:Predetermined current threshold includes alarm current I0, interruption current Imax, wherein I0<Imax;
Work as I0≤I<ImaxWhen, issue the user with information warning;
Work as ImaxDuring≤I, transformation cabinet power supply is cut off.
In the present embodiment, the leakage current detected and predetermined current are compared, when the electric leakage electricity detected
When stream is higher than alarm current, information warning is sent to staff, it is to avoid staff is in the case of unwitting to transformation cabinet
Carry out operation and bring unnecessary trouble, when the leakage current detected is higher than interruption current, directly cut off in transformation cabinet
Power supply, it is to avoid staff carries out operation to transformation cabinet in the case of unwitting and brings life danger.
Step S4, T is compared with preset temperature threshold value, and according to comparative result transformation cabinet is aerated or to
Family sends information warning and cuts off transformation cabinet power supply.
This step is specifically included:Preset temperature threshold value includes alarm temperature T0, power-off temperature Tmax, wherein T0<Tmax;
Work as T0≤T<TmaxWhen, transformation cabinet is aerated, until T<a T0When, stopping is aerated to transformation cabinet, wherein 0
<a<1;
Work as Tmax<During T, the action of control module instruction control power-off modular, control module instruction alarm module work to user
Send information warning and cut off transformation cabinet power supply;
In the present embodiment, the power transformation in-cabinet temperature and preset temperature temperature detecting module collected is compared,
When the temperature in transformation cabinet is higher than alarm temperature, control module control ventilation module is aerated to transformation cabinet, so as to reduce
Temperature in transformation cabinet, when the temperature in transformation cabinet is higher than power-off temperature, control module control power-off modular directly cuts off change
Power supply in electric cabinet, it is to avoid temperature is too high to trigger electrical equipment burning in transformation cabinet, so as to bring economic loss.
Present embodiment, when transformation cabinet leaks electricity, is warned according to detection transformation cabinet leakage current to staff
Show, in the case where drain conditions are serious, transformation cabinet is powered off, it is to avoid staff is in the case of unwitting to power transformation
Cabinet is operated, so that puzzlement even life danger is brought to staff, while by gathering the temperature in transformation cabinet, working as leakage
When electricity or external cause cause temperature drift in transformation cabinet, cooling is aerated to transformation cabinet, by power distribution cabinet internal temperature control
In suitable scope, when temperature is too high, transformation cabinet is powered off, it is to avoid transformation cabinet burns, damage transformation cabinet band
Carry out economic loss.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (9)
1. a kind of high-low pressure transformation cabinet leakage controller system, it is characterised in that including:
Detection of electrical leakage module, for detecting transformation cabinet leakage current I;
Temperature detecting module, for gathering power transformation in-cabinet temperature T;
Ventilation module, communicates to connect with control module, for the instruction action according to control module, transformation cabinet inside is led to
Wind;
Alarm module, communicates to connect with control module, for the instruction action according to control module, sends information warning;
Power-off modular, communicates to connect with control module, for the instruction action according to control module, transformation cabinet internal electric source is entered
Row disconnects;
Control module, is communicated to connect, control module is detected by detection of electrical leakage module with detection of electrical leakage module, temperature detecting module
Transformation cabinet leakage current I, control module gather power transformation in-cabinet temperature T by temperature detecting module, and by I and predetermined current threshold
It is compared, and is acted according to comparative result instruction control alarm module, power-off modular;T is compared with preset temperature threshold value
Compared with, and acted according to comparative result instruction control ventilation module, alarm module, power-off modular.
2. high-low pressure transformation cabinet leakage controller system according to claim 1, it is characterised in that the control module, tool
Body is used for:Alarm current I is provided with control module0, interruption current Imax, wherein I0<Imax;
Work as I0≤I<ImaxWhen, control module instruction control alarm module action;
Work as ImaxDuring≤I, control module instruction control power-off modular.
3. high-low pressure transformation cabinet leakage controller system according to claim 1, it is characterised in that the control module, tool
Body is used for:Alarm temperature T is provided with control module0, power-off temperature Tmax, wherein T0<Tmax;
Work as T0≤T<TmaxWhen, control module instruction control ventilation module action, until T<a T0When, control module instruction control is logical
The stopping of wind module is acted, wherein 0<a<1;
Work as Tmax<During T, the action of control module instruction control power-off modular, control module instruction alarm module work.
4. high-low pressure transformation cabinet leakage controller system according to claim 1, it is characterised in that the detection of electrical leakage module
At least include a detection of electrical leakage submodule.
5. high-low pressure transformation cabinet leakage controller system according to claim 1, it is characterised in that the temperature detecting module
At least include a temperature sensor.
The control method 6. a kind of high-low pressure transformation cabinet leaks electricity, it is characterised in that including:
S1, detection transformation cabinet leakage current I;
S2, collection power transformation in-cabinet temperature T;
S3, I and predetermined current threshold be compared, and information warning or cut-out transformation cabinet are issued the user with according to comparative result
Power supply;
S4, T and preset temperature threshold value be compared, and according to comparative result be aerated or issue the user with police to transformation cabinet
Show information and cut off transformation cabinet power supply.
The control method 7. high-low pressure transformation cabinet according to claim 6 leaks electricity, it is characterised in that step S3, is specifically included:
Predetermined current threshold includes alarm current I0, interruption current Imax, wherein I0<Imax;
Work as I0≤I<ImaxWhen, issue the user with information warning;
Work as ImaxDuring≤I, transformation cabinet power supply is cut off.
The control method 8. high-low pressure transformation cabinet according to claim 6 leaks electricity, it is characterised in that step S4, is specifically included:
Preset temperature threshold value includes alarm temperature T0, power-off temperature Tmax, wherein T0<Tmax;
Work as T0≤T<TmaxWhen, transformation cabinet is aerated, until T<a T0When, stopping is aerated to transformation cabinet, wherein 0<a<
1;
Work as Tmax<During T, the action of control module instruction control power-off modular, control module instruction alarm module work are issued the user with
Information warning simultaneously cuts off transformation cabinet power supply.
The control method 9. high-low pressure transformation cabinet according to claim 6 leaks electricity, it is characterised in that in step s 2, pass through
Temperature sensor collection power transformation in-cabinet temperature T.
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CN201710334918.3A CN107069675A (en) | 2017-05-12 | 2017-05-12 | A kind of high-low pressure transformation cabinet leakage controller system and method |
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CN201710334918.3A CN107069675A (en) | 2017-05-12 | 2017-05-12 | A kind of high-low pressure transformation cabinet leakage controller system and method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108714931A (en) * | 2018-05-31 | 2018-10-30 | 安徽电信器材贸易工业有限责任公司 | A kind of optical cable Cutter Control System |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203324778U (en) * | 2013-06-06 | 2013-12-04 | 江苏创导电气有限公司 | Fire automatic alarm switch cabinet |
CN104393576A (en) * | 2012-05-31 | 2015-03-04 | 德清县供电局 | Low-voltage power distribution cabinet safety protection method |
CN104638531A (en) * | 2013-11-13 | 2015-05-20 | 天津市科惠生产力促进中心 | Intelligent integrated power distribution cabinet |
CN204696642U (en) * | 2015-06-04 | 2015-10-07 | 张生国 | A kind of laboratory power supply protective device |
CN105305375A (en) * | 2015-11-04 | 2016-02-03 | 成都聚智工业设计有限公司 | Electric leakage protection device of distribution box |
CN106384950A (en) * | 2016-11-25 | 2017-02-08 | 国网江西省电力公司赣西供电分公司 | Power distribution cabinet with automatic fault alarm function and alarm method thereof |
CN106530582A (en) * | 2016-12-22 | 2017-03-22 | 国网山东省电力公司鄄城县供电公司 | Electrical fire monitoring device, system and method |
-
2017
- 2017-05-12 CN CN201710334918.3A patent/CN107069675A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104393576A (en) * | 2012-05-31 | 2015-03-04 | 德清县供电局 | Low-voltage power distribution cabinet safety protection method |
CN203324778U (en) * | 2013-06-06 | 2013-12-04 | 江苏创导电气有限公司 | Fire automatic alarm switch cabinet |
CN104638531A (en) * | 2013-11-13 | 2015-05-20 | 天津市科惠生产力促进中心 | Intelligent integrated power distribution cabinet |
CN204696642U (en) * | 2015-06-04 | 2015-10-07 | 张生国 | A kind of laboratory power supply protective device |
CN105305375A (en) * | 2015-11-04 | 2016-02-03 | 成都聚智工业设计有限公司 | Electric leakage protection device of distribution box |
CN106384950A (en) * | 2016-11-25 | 2017-02-08 | 国网江西省电力公司赣西供电分公司 | Power distribution cabinet with automatic fault alarm function and alarm method thereof |
CN106530582A (en) * | 2016-12-22 | 2017-03-22 | 国网山东省电力公司鄄城县供电公司 | Electrical fire monitoring device, system and method |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108714931A (en) * | 2018-05-31 | 2018-10-30 | 安徽电信器材贸易工业有限责任公司 | A kind of optical cable Cutter Control System |
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