CN113009211A - Overvoltage data acquisition equipment - Google Patents
Overvoltage data acquisition equipment Download PDFInfo
- Publication number
- CN113009211A CN113009211A CN202110213257.5A CN202110213257A CN113009211A CN 113009211 A CN113009211 A CN 113009211A CN 202110213257 A CN202110213257 A CN 202110213257A CN 113009211 A CN113009211 A CN 113009211A
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- overvoltage
- shell
- guide rail
- data collection
- collection device
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- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims description 11
- 238000013480 data collection Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 239000013307 optical fiber Substances 0.000 description 7
- 230000001052 transient effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses overvoltage data acquisition equipment, which comprises a shell and an overvoltage monitoring assembly arranged inside the shell; the overvoltage monitoring assembly comprises a main controller, and a plurality of paths of non-contact overvoltage sensors and a signal output module which are respectively electrically connected with the main controller; the shell is provided with at least one pair of guide rail buckles, each pair of guide rail buckles are used for connecting the shell to the installation guide rail in a sliding mode, a plurality of through holes are formed in the shell, and each through hole in the plurality of through holes is used for enabling the multi-path non-contact overvoltage sensor and the signal output module to stretch out of the shell from the corresponding through hole. Each pair of guide rail buckles on the shell is used for connecting the shell to the installation guide rail in a sliding mode, so that the installation is convenient and fast, and the installation method is suitable for large-scale installation. Meanwhile, the non-contact detection mode has no influence on a detected circuit, the potential short circuit hazard possibly caused by the mode of measuring voltage by contact is thoroughly avoided, and the safety performance is improved.
Description
Technical Field
The invention relates to operation and maintenance equipment of a power system, in particular to overvoltage data acquisition equipment.
Background
The power system comprises a primary device and a secondary device; the primary equipment (also called main equipment) is a main body forming a power system, is equipment for directly producing, transmitting and distributing electric energy and comprises a generator, a power transformer, a circuit breaker, an isolating switch, a power bus, a power cable, a power transmission line and the like; the secondary equipment is used for controlling, regulating, protecting and monitoring the primary equipment and comprises a control appliance, a relay protection and automatic device, a measuring instrument, a signal appliance and the like. The secondary equipment is connected with the primary equipment through a voltage transformer and a current transformer to obtain electric connection, wherein the primary equipment and a circuit connected with the primary equipment are called a primary circuit, and an electric circuit in which the secondary equipment is connected according to a certain rule to meet certain technical requirements is called a secondary circuit.
The abnormal voltage rise exceeding the working voltage of the power system under specific conditions belongs to an electromagnetic disturbance phenomenon in the power system, which comprises transient overvoltage, transient overvoltage and the like. For example, the transient overvoltage refers to a voltage that when the power system is operating normally, the insulation of the electrical equipment is under the rated voltage of the power supply, and the voltage of some part in the system is increased by a value that greatly exceeds the normal operation value due to lightning strike, operation, fault, or parameter configuration.
In the prior art, the secondary equipment is provided with an overvoltage monitor to monitor transient overvoltage data, so that data support is provided for maintaining the power equipment. However, in the prior art, the sensing part of the overvoltage monitor has the problems of large volume, high manufacturing cost and inconvenient installation.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, provides overvoltage data acquisition equipment and solves the technical problem that the overvoltage data acquisition equipment is inconvenient to install in a secondary system.
In order to achieve the above purpose, the invention provides the following technical scheme:
an overvoltage data collection device, the device comprising a housing and an overvoltage monitoring component disposed within the housing;
the overvoltage monitoring assembly comprises a main controller, and a plurality of paths of non-contact overvoltage sensors and a signal output module which are respectively electrically connected with the main controller;
the shell is provided with at least one pair of guide rail buckles, each pair of guide rail buckles are used for connecting the shell to an installation guide rail in a sliding mode, the shell is provided with a plurality of through holes, and each through hole in the through holes is used for enabling the multichannel non-contact overvoltage sensor and the signal output module to extend out of the shell from the corresponding through hole.
As a further improvement, the device further comprises a multi-channel analog quantity input module, and the multi-channel non-contact overvoltage sensor is electrically connected with the main controller through the multi-channel analog quantity input module.
As a further improvement, the signal output module comprises a wireless communication module and a multi-path serial port signal output module.
As a further improvement, each serial port signal output module in the multiple serial port signal output modules is an RS485 interface.
As a further improvement, the device further comprises a display screen arranged on the shell, and the display screen is electrically connected with the main controller.
As a further improvement, the device further comprises a key arranged on the housing, wherein the key is used for inputting a control instruction to the main controller.
As a further improvement, the equipment also comprises an LED indicator lamp arranged on the shell, and the LED indicator lamp is electrically connected with the main controller.
As a further improvement, the device further comprises a power module for powering the device.
As a further improvement, the shell is made of plastic.
As a further improvement, the wireless communication module is a wifi module
Compared with the prior art, the overvoltage data acquisition equipment provided by the invention at least has the following beneficial effects:
1. the shell is provided with at least one pair of guide rail buckles, each pair of guide rail buckles are used for being connected to the installation guide rail in a sliding mode, installation is convenient, and the guide rail buckle is suitable for installation on a large scale.
2. The non-contact detection mode has no influence on the circuit to be detected, thoroughly avoids the hidden danger of short circuit possibly caused by the mode of measuring voltage by contact, and improves the safety performance.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described below with reference to the accompanying drawings and examples;
fig. 1 is a block diagram of an overvoltage data acquisition device according to an embodiment.
Fig. 2 is a schematic diagram of the overall structure of the overvoltage data acquisition device in one embodiment.
Description of the drawings:
100. a main controller; 110. a power supply module; 120. pressing a key; 130. a multi-channel analog input module; 140. a plurality of non-contact overvoltage sensors; 150. an LED indicator light; 160. a wireless communication module; 170. an RS485 interface; 180. a display screen; 200. a housing; 210. and (5) clamping the guide rail.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature being "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
In order to facilitate understanding of the present invention, the following description is made of a related art to which embodiments of the present invention relate.
The controller is a master device for controlling the starting, speed regulation, braking and reversing of the motor by changing the wiring of the main circuit or the control circuit and changing the resistance value in the circuit according to a preset sequence. The system consists of a program counter, an instruction register, an instruction decoder, a time sequence generator and an operation controller, and is a decision mechanism for issuing commands, namely, the decision mechanism is used for coordinating and commanding the operation of the whole computer system. The embodiment of the invention is called a main controller.
The voltage sensor is a sensor which can sense the measured voltage and convert the measured voltage into a usable output signal. In various automatic detection and control systems, it is often necessary to track and collect high-speed alternating and direct voltage signals and perform spectrum analysis on relatively complex voltage waveforms. The Hall voltage sensor is a voltage detection element capable of isolating a main current loop from an electronic control circuit, has excellent electrical performance, can detect alternating current and direct current by the same detection element, can even detect a transient voltage peak value, and is a new generation product expected to replace a traditional transformer. The optical fiber voltage sensor is a new-generation voltage detection device with extremely strong vitality and competitiveness. The optical fiber voltage sensor mainly comprises a light source, a sensing head, a photoelectric conversion and information processing circuit and a computer acquisition system. The optical fiber voltage sensor adopts the nonmetal crystal as a sensing head, and the optical fiber as a sensing medium, so that the power grid can be effectively isolated from the measuring circuit, and the danger of secondary short circuit is avoided. The optical fiber voltage sensor has the advantages of no magnetic saturation, high accuracy and the like due to the sensing mechanism of the optical fiber voltage sensor; the optical fiber is used for transmitting information, the anti-interference capability is strong, and the function of electrically isolating a measurement loop from a high-voltage loop can be achieved, so that the insulation structure is simpler than that of a traditional mutual inductor, the size and the mass can be reduced, and the electromagnetic mutual inductor has the advantages which cannot be achieved by the traditional electromagnetic mutual inductor. Both a hall voltage sensor and a fiber optic voltage observer can be used as the non-contact overvoltage sensor in the embodiment of the invention.
The overvoltage data acquisition device provided by the invention is explained in detail through one or more embodiments.
As shown in fig. 1 and 2, in one embodiment, there is provided an overvoltage data collection device comprising a housing 200 of plastic material and an overvoltage monitoring component disposed within the housing 200; the overvoltage monitoring assembly comprises a main controller 100, and a plurality of non-contact overvoltage sensors 140 and a signal output module which are respectively electrically connected with the main controller 100; at least one pair of rail fasteners 210 is disposed on the housing 200, each pair of rail fasteners 210 is used for slidably connecting the housing to a mounting rail, a plurality of through holes are disposed on the housing 200, and each through hole of the plurality of through holes is used for allowing the multiple non-contact overvoltage sensors 140 and the signal output modules to extend out of the housing 200 from the corresponding through hole.
Specifically, in order to facilitate installation of the overvoltage data acquisition device, the din guide rail is used in a matched manner in the embodiment; the din guide rail is a German industrial standard, the guide rail is used as an installation mode of industrial electrical components, the electrical components which support the standard can be conveniently clamped on the guide rail without being fixed by screws, and the maintenance is also convenient.
In this example, the number of the guide rail buckles 210 is two pairs for illustration, each pair of the guide rail buckles 210 on the housing 200 is equivalent to a slider capable of being slidably connected with the din guide rail, when installing, a screw is not needed, only one end of each of the two pairs of the guide rail buckles 210 along the din guide rail needs to be clamped on the din guide rail, and the position is adjusted by sliding along the din guide rail as required, so that the installation is convenient; meanwhile, the stability of the equipment fixed on the din guide rail can be improved by arranging the two pairs of guide rail buckles 210.
In some embodiments, the apparatus further comprises a multi-channel analog input module 130, and the multi-channel non-contact overvoltage sensor 140 is electrically connected to the main controller 100 through the multi-channel analog input module 130.
It should be noted that the analog input module is a device for acquiring an analog signal of a remote field to the main controller 100, and provides an analog-to-485 function by using an RS-485 bus as a data communication line, and can simultaneously input eight analog signals to the module and transmit the eight analog signals to the main controller 100 through the RS-485 bus.
In some embodiments, the signal output module includes a wireless communication module 160 and a plurality of serial signal output modules, wherein each serial signal output module of the plurality of serial signal output modules is an RS485 interface 170.
It should be noted that the wireless communication module 160 may be a bluetooth module, a wifi module, or a cellular data communication module, and the wireless communication module 160 facilitates the main controller 100 to remotely transmit the processed overvoltage data or alarm data to the off-site monitoring personnel.
In some embodiments, the device further includes a display screen 180 disposed on the housing 200, wherein the display screen 180 is electrically connected to the main controller 100 for displaying the collected overvoltage data and the data processed by the main controller 100, so as to facilitate observation by a field monitoring person.
In some embodiments, the device further includes a key 120 disposed on the housing 200, and the key 120 is used to input a control instruction to the main controller 100, and provide a button to implement an interactive operation with the device, thereby improving convenience.
In some embodiments, the device further comprises an LED indicator 150 disposed on the housing 200, wherein the LED indicator 150 is electrically connected to the main controller 100 for generating an alarm signal in time when the overvoltage data is abnormal. For example, the LED indicator 150 is divided into a green light and a red light, and when the main controller 100 determines that the collected overvoltage data is smaller than the threshold, the green light is controlled to be turned on; when the main controller 100 judges that the collected overvoltage data is greater than the threshold value, the red light is controlled to be turned on so as to remind monitoring personnel to process in time.
As a further improvement, the device further includes a power module 110 for supplying power to the device, specifically, the power module 110 may be a mobile power supply, and may still monitor overvoltage data when the power is off, so as to be suitable for a situation where the power is off due to lightning, and may still continue to monitor when the power is off, thereby ensuring the safety of the operation of the power system.
To facilitate an understanding of the invention, the working principle of the device is briefly described below:
1. the multiple non-contact overvoltage sensors 140 transmit the sensed signals to the main controller 100 through the multiple analog input modules 130 for data calculation and storage.
2. The power module 110 inputs (dc/ac) to provide operating power to the entire device.
3. The main controller 100 outputs the calculated data to the background terminal through the multi-path RS485 interface 170 or the wireless communication module 160.
4. The OLED display 180 (data display and query) can display the overvoltage data stored in the database, and can perform display control of the data through the key 120.
5. Whether the power system is in a normal working state can be intuitively known through the LED indicator lamp 150.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Claims (10)
1. An overvoltage data acquisition device, characterized in that the device comprises a housing and an overvoltage monitoring component arranged inside the housing;
the overvoltage monitoring assembly comprises a main controller, and a plurality of paths of non-contact overvoltage sensors and a signal output module which are respectively electrically connected with the main controller;
the shell is provided with at least one pair of guide rail buckles, each pair of guide rail buckles are used for connecting the shell to an installation guide rail in a sliding mode, the shell is provided with a plurality of through holes, and each through hole in the through holes is used for enabling the multichannel non-contact overvoltage sensor and the signal output module to extend out of the shell from the corresponding through hole.
2. The overvoltage data collection device of claim 1, further comprising a plurality of analog input modules, wherein the plurality of non-contact overvoltage sensors are electrically connected to the master controller through the plurality of analog input modules.
3. The overvoltage data collection device of claim 1, wherein the signal output module includes a wireless communication module and a multi-way serial signal output module.
4. The overvoltage data collection device of claim 3, wherein each of the plurality of serial signal output modules is an RS485 interface.
5. The overvoltage data collection device of claim 1, further comprising a display screen disposed on said housing, said display screen being electrically connected to said master controller.
6. The overvoltage data collection device of claim 1, further comprising a button disposed on said housing, said button for inputting control commands to said master controller.
7. The overvoltage data collection device of claim 1, further comprising an LED indicator disposed on said housing, said LED indicator being electrically connected to said master controller.
8. The overvoltage data collection device of claim 1, further comprising a power module for powering the device.
9. The overvoltage data collection device of claim 1, wherein said housing is plastic.
10. The overvoltage data collection device of claim 3, wherein the wireless communication module is a wifi module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110213257.5A CN113009211A (en) | 2021-02-25 | 2021-02-25 | Overvoltage data acquisition equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110213257.5A CN113009211A (en) | 2021-02-25 | 2021-02-25 | Overvoltage data acquisition equipment |
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| Publication Number | Publication Date |
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| CN113009211A true CN113009211A (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110213257.5A Pending CN113009211A (en) | 2021-02-25 | 2021-02-25 | Overvoltage data acquisition equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204945305U (en) * | 2015-08-20 | 2016-01-06 | 苏州银蕨电力科技有限公司 | A kind of intelligent grid sensing device |
| CN105425020A (en) * | 2015-11-20 | 2016-03-23 | 重庆大学 | Non-contact overvoltage photoelectric sensor based on double lithium niobate crystals |
| CN110850336A (en) * | 2019-12-11 | 2020-02-28 | 深圳抛物线科技有限公司 | Intelligent grounding monitoring device |
| CN212159921U (en) * | 2020-03-09 | 2020-12-15 | 深圳抛物线科技有限公司 | Transient overvoltage and overcurrent monitoring device |
-
2021
- 2021-02-25 CN CN202110213257.5A patent/CN113009211A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204945305U (en) * | 2015-08-20 | 2016-01-06 | 苏州银蕨电力科技有限公司 | A kind of intelligent grid sensing device |
| CN105425020A (en) * | 2015-11-20 | 2016-03-23 | 重庆大学 | Non-contact overvoltage photoelectric sensor based on double lithium niobate crystals |
| CN110850336A (en) * | 2019-12-11 | 2020-02-28 | 深圳抛物线科技有限公司 | Intelligent grounding monitoring device |
| CN212159921U (en) * | 2020-03-09 | 2020-12-15 | 深圳抛物线科技有限公司 | Transient overvoltage and overcurrent monitoring device |
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Application publication date: 20210622 |
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