CN109038265B - Intelligent low-voltage switch cabinet - Google Patents
Intelligent low-voltage switch cabinet Download PDFInfo
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- CN109038265B CN109038265B CN201810905477.2A CN201810905477A CN109038265B CN 109038265 B CN109038265 B CN 109038265B CN 201810905477 A CN201810905477 A CN 201810905477A CN 109038265 B CN109038265 B CN 109038265B
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- 238000012360 testing method Methods 0.000 claims abstract description 42
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000001413 cellular effect Effects 0.000 claims description 3
- 230000006866 deterioration Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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- 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- 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
- H02B1/16—Earthing arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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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
- 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
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides an intelligent low-voltage switch cabinet, which relates to the technical field of switch cabinets in power systems and comprises the following components: the device comprises a ground resistance testing device, an upper computer, a temperature detector, a switch device and a display screen; the upper computer is respectively connected with the grounding resistance testing device, the temperature detector and the display screen; the switch equipment is connected with the grounding resistance testing device; the temperature detector detects a temperature value inside the switching device; the upper computer compares the temperature value with a preset value, and sends a starting signal to the grounding resistance testing device after the temperature value is larger than the preset value; after receiving a starting signal sent by the upper computer, the grounding resistance testing device measures a loop resistance value in the switch equipment and feeds the loop resistance value back to the upper computer; the display screen is used for displaying the loop resistance value and the temperature value in the switch equipment. The invention can detect the loop resistance value in the switch equipment when the temperature in the switch equipment is too high, and observe the loop resistance value at any time, thereby improving the operation safety of the switch cabinet.
Description
Technical Field
The invention relates to the technical field of switch cabinets in power systems, in particular to an intelligent low-voltage switch cabinet.
Background
The switch cabinet is electrical equipment and mainly used for opening and closing, controlling and protecting electric equipment in the processes of power generation, transmission, distribution and electric energy conversion of a power system. The contact resistance is included at the electrical conduction loop node of the switch cabinet, and the contact resistance may cause the temperature of the contact resistance to rise due to aging, contact failure and the like, and the contact design of the switch equipment has the limitation of heat capacity, so that once the contact design exceeds the range of the heat capacity which can be born by the contact, the switch equipment is in a very dangerous state, thereby causing switch failure and affecting the system safety. In this case, detecting the loop resistance of the switching device is generally employed to detect whether the contact resistance is functioning well.
Existing loop resistance detection is typically performed at periodic maintenance or periodic detection of switchgear equipment. However, the deterioration of the contact resistance in the switchgear is a gradual process, and the deterioration of the contact resistance may occur before maintenance is not performed, so that it is likely that the safety operation of the entire switchgear is affected due to the deterioration of the contact resistance.
Disclosure of Invention
Therefore, the invention aims to provide the intelligent low-voltage switch cabinet, which can detect the loop resistance value in the switch equipment when the temperature inside the switch equipment is too high, observe the loop resistance value at any time and improve the operation safety of the switch cabinet.
In a first aspect, an embodiment of the present invention provides an intelligent low-voltage switchgear, including: the device comprises a ground resistance testing device, an upper computer, a temperature detector, a switch device and a display screen; the upper computer is respectively connected with the grounding resistance testing device, the temperature detector and the display screen; the switch equipment is connected with the grounding resistance testing device;
the temperature detector is used for detecting a temperature value inside the switch equipment;
the upper computer is used for comparing the temperature value with the preset value and sending a starting signal to the grounding resistance testing device after the temperature value is larger than the preset value;
the grounding resistance testing device is used for measuring a loop resistance value in the switch equipment after receiving the starting signal sent by the upper computer and feeding back the loop resistance value to the upper computer;
The display screen is used for displaying the loop resistance value and the temperature value in the switch equipment.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the method further includes: an alarm; the alarm is connected with the upper computer;
and the upper computer is also used for controlling the alarm to alarm after comparing that the temperature value is larger than a preset value.
With reference to the first aspect, the embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the alarm includes a speaker and/or a warning light.
With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the method further includes: the communicator is used for being connected with the intelligent terminal;
And the upper computer is also used for sending an alarm signal to the intelligent terminal through the communicator after comparing that the temperature value is larger than the preset value so as to realize remote monitoring of the intelligent low-voltage switch cabinet.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the communicator includes a wireless communicator; the wireless communicator includes at least one of: zigBee devices, wi-Fi devices, bluetooth devices, satellite communicators, cellular devices.
With reference to the first aspect, the embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the smart terminal includes a mobile phone and a computer.
With reference to the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where the method further includes: and the starting switch is used for starting the ground resistance testing device to measure the loop resistance value in the switching equipment after receiving a starting instruction of a user.
With reference to the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, where the start switch is disposed on the display screen.
With reference to the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, wherein the temperature detector is further configured to detect a temperature value of one or more contactors, copper busbar in the following components in the low-voltage switchgear.
With reference to the first aspect, an embodiment of the present invention provides a ninth possible implementation manner of the first aspect, wherein the temperature detector is a temperature sensor.
The embodiment of the invention has the following beneficial effects: the temperature detector can detect the temperature value inside the switch equipment by adding the grounding resistance testing device, the upper computer, the temperature detector, the switch equipment and the display screen in the switch cabinet, the upper computer compares the temperature value with a preset value and sends a starting signal to the grounding resistance testing device after the temperature value is larger than the preset value, the grounding resistance testing device measures the loop resistance value in the switch equipment, and the display screen displays the loop resistance value and the temperature value in the switch equipment, so that the loop resistance value in the switch equipment can be detected when the temperature inside the switch equipment is too high, the loop resistance value can be observed at any time, and the operation safety of the switch cabinet is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of an intelligent low-voltage switchgear provided by an embodiment of the present invention;
FIG. 2 is a block diagram of an intelligent low-voltage switchgear provided in another embodiment of the present invention;
FIG. 3 is a schematic diagram of a switch cabinet according to an embodiment of the present invention in communication with an intelligent terminal;
fig. 4 is a schematic diagram of a display screen according to an embodiment of the present invention.
Icon:
110-a ground resistance testing device; 120-an upper computer; 130-a temperature detector; 140 switching devices; 150-a display screen; 160-an alarm; 100-intelligent low-voltage switch cabinets; 170-communicator; 200-intelligent terminal.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Currently, existing loop resistance tests are typically performed at regular maintenance or regular test of switchgear equipment. However, the deterioration of the contact resistance in the switchgear is a gradual process, and the deterioration of the contact resistance may occur before maintenance is not performed, so that it is likely that the safety operation of the entire switchgear is affected due to the deterioration of the contact resistance.
Meanwhile, since the contact resistance may be increased due to aging, insufficient contact, and the like, the temperature of the contact resistance is increased, so that the temperature inside the switchgear is also increased. Based on the above, the intelligent low-voltage switch cabinet provided by the embodiment of the invention can detect the loop resistance value in the switch equipment when the temperature inside the switch equipment is too high, so that the loop resistance value can be observed at any time, and the operation safety of the switch cabinet is improved.
In order to facilitate understanding of the present invention, the following describes in detail the intelligent low-voltage switchgear provided by the embodiment of the present invention,
Referring to fig. 1, an embodiment of the present invention provides an intelligent low-voltage switchgear, including: the ground resistance testing device 110, the upper computer 120, the temperature detector 130, the switch equipment 140 and the display screen 150; the upper computer 120 is respectively connected with the ground resistance testing device 110, the temperature detector 130 and the display screen 150; the switching device 140 is connected to the ground resistance testing apparatus 110.
Specifically, the temperature value inside the switch equipment is detected through the temperature detector, the temperature value is compared with a preset value through the upper computer, and after the temperature value is larger than the preset value, a starting signal is sent to the grounding resistance testing device, the grounding resistance testing device measures the loop resistance value in the switch equipment, the loop resistance value and the temperature value in the switch equipment are displayed on the display screen, and therefore when the temperature inside the switch equipment is too high, the loop resistance value in the switch equipment is detected, the loop resistance value is observed at any time, and the operation safety of the switch cabinet is improved.
Wherein the temperature detector 130 is used to detect a temperature value inside the switchgear. Alternatively, the temperature detector 130 may be a temperature sensor such as: industrial thermocouples, thin wire thermocouples, etc. are devices capable of sensing temperature and converting the sensed temperature into an output signal.
The upper computer 120 is configured to compare the temperature value with a preset value, and send a start signal to the ground resistance testing device after the temperature value is greater than the preset value. Optionally, the upper computer 120 includes a comparing circuit, where the comparing circuit compares the temperature value with a preset value, and after the temperature value is greater than the preset value, that is, the temperature inside the switch device is very high and is likely to be caused by the contact resistance, so that a start signal needs to be sent to the ground resistance testing device, so that the ground resistance testing device detects the loop resistance value in the switch device, and determines whether the contact resistance in the switch cabinet is deteriorated according to the detected resistance value.
The ground resistance testing device 110 is configured to measure a loop resistance value in the switching device after receiving a start signal sent by the upper computer 120, and send the loop resistance value to the upper computer 120. Specifically, the ground resistance test device 110 starts to measure the loop resistance value in the switching device after receiving the start signal sent by the upper computer 120, so that the loop resistance value in the switching device can be detected without blindness, and under the condition that the contact resistance is possibly deteriorated, the condition that the contact resistance is verified by detecting the loop resistance value in the switching device, thereby saving energy and maintaining the safety of the system.
Alternatively, the ground resistance test device 110 may be a digital ground resistance tester, or a pincerlike ground resistance tester, or a ground network ground resistance meter, or the like. Taking a digital ground resistance tester as an example, the working principle of the digital ground resistance tester is as follows: the DC/AC converter in the machine converts DC into AC low-frequency constant current, the AC voltage drop is generated on the measured object through the auxiliary grounding electrode C and the measured object E to be formed into a loop, the loop is sent to the AC amplifier to be amplified through the auxiliary grounding electrode P, and the loop is sent to the gauge outfit to be displayed after detection.
The display 150 is used to display the loop resistance value and the temperature value in the switching device. Optionally, after the ground resistance testing device 110 measures the loop resistance value, the loop resistance value is fed back to the upper computer 120, so that the display screen 150 extracts and displays the loop resistance value and the temperature value in the upper computer 120.
Alternatively, the display 150 may be mounted on the body of the intelligent low-voltage switchgear so that a worker can see specific loop resistance values and temperature values. So that the staff judges whether contact resistance worsens according to return circuit resistance value, if confirm to contact resistance worsens, in time overhaul the cubical switchboard, if not contact resistance worsens the inside high temperature of cubical switchboard that arouses, then can start the cooling device in the cubical switchboard and cool down the cubical switchboard inside, perhaps when the cubical switchboard does not have cooling device, can open the cabinet door and cool down.
Referring to fig. 2, the embodiment of the present invention further provides another intelligent low-voltage switchgear, where the intelligent low-voltage switchgear includes: the ground resistance testing device 110, the upper computer 120, the temperature detector 130, the switch equipment 140, the display screen 150 and the alarm 160; the upper computer 120 is respectively connected with the ground resistance testing device 110, the temperature detector 130 and the display screen 150; the switching device 140 is connected with the ground resistance testing apparatus 110; the alarm 160 is connected to the host computer 120. It can be known that the embodiments shown in fig. 2 and the embodiment shown in fig. 1 only include the alarm 160, so, for brevity, for the implementation principle and the technical effects of the ground resistance testing device, the upper computer, the temperature detector, the switching device, and the display screen of the embodiment shown in fig. 2, reference may be made to the corresponding parts of the embodiment shown in fig. 1.
Referring to fig. 2, after comparing that the temperature value is greater than the preset value, the upper computer 120 not only starts the ground resistance testing device 110 to measure the loop resistance value in the switchgear, but also controls the alarm to alarm. Therefore, the temperature of the inside of the switch cabinet is too high, and the worker can pay attention to the loop resistance value and the temperature value in the display screen after hearing the alarm, so that the worker can judge whether the loop resistance value is normal in time.
Optionally, the alarm 160 includes a speaker and/or a warning light. When the alarm only comprises a loudspeaker, after the alarm is triggered, a dripping sound can be emitted to remind a user. When the alarm only comprises a warning lamp, after the alarm is triggered, the warning lamp can emit a burst of light or confetti of light to prompt a user. When the alarm comprises a loudspeaker and a warning lamp, after the alarm is triggered, a sound is made and a bright light is made to remind a user.
In some embodiments, the intelligent low-voltage switchgear further comprises: the communicator is used for being connected with the intelligent terminal; the upper computer is also used for sending an alarm signal to the intelligent terminal through the communicator after comparing that the temperature value is larger than a preset value so as to realize remote monitoring of the intelligent low-voltage switch cabinet.
Referring to fig. 3, the intelligent low-voltage switchgear 100 communicates with the intelligent terminal 200 through the communicator 170, and after the upper computer 120 in the intelligent low-voltage switchgear 100 compares that the temperature value is greater than a preset value, an alarm signal is generated and transmitted to the intelligent terminal 200 through the communicator 170. The intelligent terminal 200 may be a terminal held by a worker, such as a mobile phone, or the like, or the intelligent terminal 200 at a monitoring room, such as a computer, or the like. Of course, the intelligent terminal 200 with which the intelligent low-voltage switchgear 100 communicates with the communicator 170 may be one or more. The number of the intelligent terminals 200 communicating with the intelligent low-voltage switchgear 100 may be determined according to circumstances, and the present invention is not particularly limited.
Optionally, the communicator 170 comprises a wireless communicator; the wireless communicator includes at least one of the following: zigBee devices, wi-Fi devices, bluetooth devices, satellite communicators, cellular devices.
In some embodiments, the intelligent low-voltage switchgear further comprises: and the starting switch is used for starting the grounding resistance testing device to measure the loop resistance value in the switching equipment after receiving a starting instruction of a user.
Specifically, when the worker performs regular maintenance or regular detection, or when the temperature inside the switchgear due to deterioration of the contact resistance is not high enough to reach a preset value in the case where the external environment is cold, the worker can manually control the ground resistance test device to measure the loop resistance value in the switchgear. This facilitates the work of the staff of the power system.
Referring to fig. 4, a schematic diagram of a display screen is shown, and the display screen 150 is provided with a start switch in addition to the loop resistance value (XXX ohms) and the temperature value (XXX degrees). Wherein the start switch may be in the form of a touch or in the form of a female/male key.
Optionally, the temperature detector 130 is further configured to detect a temperature value of one or more contactors, copper busbar in the following components in the low voltage switchgear.
Specifically, the temperature detector 130 is added to one or more of the important components such as the contactor, the fuse, the copper busbar and the like of the switch cabinet to detect the temperature of the important components, meanwhile, the temperature values can be sent to the display screen 150 to be displayed on the display screen, so that a worker in the power system can check the temperature values of the important components of the switch cabinet, know the temperature values of the important components of the switch cabinet, check whether the temperature values are in a reasonable range or not, and if the temperature values are not found to be in a reasonable range, the temperature values are processed timely. In addition, these temperature values can be sent to the intelligent terminal 200 through the communicator 170, so that the staff not at the working site can know the temperature conditions of the important components in the switch cabinet in time to perform remote monitoring.
Of course, the temperature detectors at each place of the contactor, the fuse and the copper busbar are different, wherein the temperature detectors can be set according to the easily-occurring points of different components, and when the easily-occurring points of the components in the switch cabinet are multiple, the temperature detectors can be installed at each easily-occurring point, so that the invention is not particularly limited.
The relative steps, numerical expressions and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In addition, in the description of embodiments of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. An intelligent low-voltage switchgear, characterized by comprising: the device comprises a ground resistance testing device, an upper computer, a temperature detector, a switch device and a display screen; the upper computer is respectively connected with the grounding resistance testing device, the temperature detector and the display screen; the switch equipment is connected with the grounding resistance testing device;
The temperature detector is used for detecting a temperature value inside the switch equipment; the temperature detector is also used for detecting one or more of the following components in the low-voltage switch cabinet: the temperature values of the contactor, the fuse and the copper busbar;
The upper computer is used for comparing the temperature value with a preset value and sending a starting signal to the grounding resistance testing device after the temperature value is larger than the preset value;
the grounding resistance testing device is used for measuring a loop resistance value in the switch equipment after receiving the starting signal sent by the upper computer and feeding back the loop resistance value to the upper computer;
The display screen is used for displaying the loop resistance value and the temperature value in the switch equipment;
The intelligent low-voltage switch cabinet further comprises: the starting switch is used for starting the grounding resistance testing device to measure the loop resistance value in the switching equipment after receiving a starting instruction of a user; the start switch is provided on the display screen in the form of a touch or a concave/convex key.
2. The intelligent low-voltage switchgear according to claim 1, characterized in that it further comprises: an alarm; the alarm is connected with the upper computer;
and the upper computer is also used for controlling the alarm to alarm after comparing that the temperature value is larger than a preset value.
3. The intelligent low-voltage switchgear according to claim 2, characterized in that the alarm comprises a loudspeaker and/or a warning light.
4. The intelligent low-voltage switchgear according to claim 1, characterized in that it further comprises: the communicator is used for being connected with the intelligent terminal;
And the upper computer is also used for sending an alarm signal to the intelligent terminal through the communicator after comparing that the temperature value is larger than the preset value so as to realize remote monitoring of the intelligent low-voltage switch cabinet.
5. The intelligent low-voltage switchgear according to claim 4, characterized in that said communicator comprises a wireless communicator; the wireless communicator includes at least one of: zigBee devices, wi-Fi devices, bluetooth devices, satellite communicators, cellular devices.
6. The intelligent low-voltage switchgear according to claim 4, wherein the intelligent terminal comprises a mobile phone and a computer.
7. The intelligent low-voltage switchgear according to claim 1, characterized in that the temperature detector is a temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810905477.2A CN109038265B (en) | 2018-08-09 | 2018-08-09 | Intelligent low-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN208608559U (en) * | 2018-08-09 | 2019-03-15 | 济源市丰源电气设备有限公司 | Intelligent lower voltage switch cabinet |
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| CN105277872B (en) * | 2014-07-25 | 2019-09-24 | 伊顿电力设备有限公司 | The electrical connection of switchgear main circuit abnormal detection method and device |
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| CN204718641U (en) * | 2015-05-19 | 2015-10-21 | 重庆跃腾电器有限公司 | Switch cubicle ECU composite monitoring device and system |
| KR20170051984A (en) * | 2015-11-03 | 2017-05-12 | (주)신명전력산업 | Before using electrical short circuit resistance measuring device for applying distribution board |
| CN105547483B (en) * | 2015-12-01 | 2019-02-15 | 山东康威通信技术股份有限公司 | A kind of method and real-time temperature measurement system for the infrared matrix real-time measurement switch cabinet temperature of networking type |
| CN206804743U (en) * | 2017-01-04 | 2017-12-26 | 国网河南新野县供电公司 | Switch cabinet state monitoring device and system |
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| CN102033178A (en) * | 2010-11-08 | 2011-04-27 | 福州大学 | Intelligent bus duct simulating, monitoring and analyzing system |
| CN106054763A (en) * | 2016-05-19 | 2016-10-26 | 杭州施厚能源科技有限公司 | Intelligent switch cabinet online measurement and control device |
| CN208608559U (en) * | 2018-08-09 | 2019-03-15 | 济源市丰源电气设备有限公司 | Intelligent lower voltage switch cabinet |
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