CN112834803A - Monitoring device of distribution network automation terminal protection clamp plate - Google Patents
Monitoring device of distribution network automation terminal protection clamp plate Download PDFInfo
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- CN112834803A CN112834803A CN202011585501.2A CN202011585501A CN112834803A CN 112834803 A CN112834803 A CN 112834803A CN 202011585501 A CN202011585501 A CN 202011585501A CN 112834803 A CN112834803 A CN 112834803A
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- distribution network
- network automation
- automation terminal
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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
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention relates to the technical field of distribution network automation, in particular to a monitoring device of a distribution network automation terminal protection pressing plate, which comprises a monitoring module electrically connected with the protection pressing plate of the distribution network automation terminal and an alarm module electrically connected with the monitoring module; the monitoring module is provided with a trigger threshold, and when the data monitored by the monitoring module reaches the trigger threshold, the alarm module is started. According to the invention, the monitoring module is connected to the protection pressing plate of the distribution network automation terminal, when a worker sets an incorrect protection constant value on the distribution network automation terminal, a voltage difference occurs at two ends of the protection pressing plate, and when the monitoring module monitors the voltage difference, the setting error can be considered, the alarm module is immediately connected to give an alarm to remind the worker to reset, so that checking of the set value after all settings are completed can be reduced, and the working efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of distribution network automation, and particularly relates to a monitoring device for a protection pressing plate of a distribution network automation terminal.
Background
At present, distribution network automation terminals are gradually popularized, are used for meeting various functions required by transformation of the current urban and rural distribution networks, and can realize the functions of measurement, communication, protection, fault location, isolation and power restoration, distribution transformer monitoring data analysis and operation maintenance of the distribution networks. Corresponding protection setting values are usually set in the distribution automation terminal to ensure safe and orderly operation of the power grid. In the work of setting up terminal protection definite value, will protect the clamp plate to withdraw from, revise protection definite value again, whether there is voltage at protection clamp plate both ends with universal meter test after the revision is accomplished, if there is the voltage difference, then can cause protection clamp plate action tripping operation to have a power failure, consequently need check protection definite value after accomplishing, because the protection is of great variety, reasons such as terminal operation is inconvenient, make mistakes easily in the setting-up process, if there is the heteropolarity voltage condition in the clamp plate both ends after accomplishing the setting, then need check the definite value repeatedly, find out the error, work efficiency is obvious low.
Chinese patent CN208076603U discloses an intelligent terminal pressure plate voltage measurement auxiliary device, which can measure the voltage values at two ends of the pressure plate through a voltage measurement device to determine whether the trip node is adhered, but it cannot be used in power distribution terminal set value error alarm, and cannot send a prompt after measuring the voltage value. In addition, the existing distribution network automatic terminal production enterprises are numerous, the equipment models produced by each enterprise are different, the protection constant value setting error reminding function is not provided, and the protection constant value setting error reminding function is not provided in the industry, so that the production enterprises do not have a driving force to realize the protection constant value setting error reminding function.
Disclosure of Invention
The invention provides a monitoring device for a protection pressing plate of a distribution network automation terminal, which can monitor whether a protection setting value of distribution network automation terminal equipment is set wrongly, so as to send an alarm and remind workers.
In order to solve the technical problems, the invention adopts the technical scheme that:
the monitoring device comprises a monitoring module and an alarm module, wherein the monitoring module is electrically connected with the protection pressing plate of the distribution network automation terminal; the monitoring module is used for acquiring voltage signals at two ends of the protection pressing plate and triggering the alarm module according to the voltage signals.
According to the invention, the monitoring module which can be connected to the protection pressing plate of the distribution network automation terminal is arranged, the protection pressing plate is in an exit state during maintenance, when a worker sets a wrong protection fixed value on the distribution network automation terminal, a voltage difference can occur at two ends of the protection pressing plate, and when the monitoring module monitors the voltage difference, the setting error can be considered, the alarm module is switched on to give an alarm immediately to remind the worker of resetting, so that whether the circuit is abnormal or not can be monitored in real time in the process of modifying the fixed value, the trouble that the set values can be checked one by one after all the settings are completed is avoided, the working efficiency is improved, and meanwhile, the time of power failure operation is reduced.
Preferably, the alarm module includes an alarm lamp and an alarm bell. The alarm lamp can be integrated with the alarm bell and set up to reduce alarm module's installation occupation position.
Preferably, foretell monitoring module can be dismantled and be connected with and be used for the incoming line of being connected with the clamp plate electricity, can conveniently couple together monitoring module and protection clamp plate through incoming line like this, need not carry out any change to current distribution network automation terminal, realizes current distribution network automation terminal's function upgrade to reduce the transformation work to current distribution network automation terminal.
Preferably, the access line is provided with a plurality of taps. Specifically, the various taps include a plug-in tap, a clip-on tap, and a screw-in tap. Because the existing distribution network automation terminal production enterprises are numerous, the equipment models produced by each enterprise are different, and the types of the protection pressing plates are different, the tap joints arranged in the way can be adapted to various types of protection pressing plates, so that the monitoring device is higher in applicability.
Preferably, the protection device further comprises a display device electrically connected with the monitoring module, and the display device is used for displaying the monitoring data of the monitoring module, so that a worker can observe the voltage value at the two ends of the protection pressing plate more intuitively.
Preferably, the monitoring device further comprises a shell, and the monitoring module is arranged inside the shell, so that the shell can protect a circuit of the monitoring module and prevent dust, moisture and the like from damaging the monitoring module; the alarm module is arranged on the shell in a penetrating way. Specifically, the alarm lamp and the alarm bell are exposed out of the shell to avoid the shell from shielding the alarm lamp and the alarm bell, so that the reminding function of the alarm lamp and the alarm bell is more obvious; and set up like this and all can hold inside the casing the line between monitoring module and the alarm module, form stable structure with whole device for can monitor the device removal suitable position as required, the electric wire of connection can not hinder staff's operation yet.
Preferably, the housing is provided with a fixing device for fixing the housing, and specifically, the fixing device is a magnet fixedly connected with the housing. After accomplishing monitoring module's electricity connection like this, accessible magnet adsorbs whole monitoring devices on the box at distribution network automation terminal, and comparatively convenient and fast has avoided the trouble that needs drilling to the destruction of box and arouse.
Preferably, the monitoring device further comprises a power supply for supplying power to the monitoring module, the alarm module and the display device, the power supply can be a rechargeable lithium ion battery fixedly arranged in the shell, and the rated voltage of the monitoring module, the alarm module, the display device and the like is generally low and is not suitable for being directly supplied with power through the distribution network automation terminal, so that the lithium ion battery is independently arranged to provide proper voltage for each device in the monitoring device, the lithium ion battery can be charged at any time, the service time of the monitoring device is prolonged, and troubles caused by battery replacement are avoided.
Compared with the prior art, the beneficial effects are: according to the invention, the voltage at two ends of the protection pressure plate of the distribution network automation terminal is monitored in real time through the monitoring module, when the wrong protection constant value is set on the distribution network automation terminal, the alarm module is immediately connected for alarming to remind a worker to reset, so that the situation that the energy can be checked one by one after all the protection constant values are set is avoided, the working efficiency is improved, the power failure time caused by maintenance operation is reduced, and the power consumption experience of a user is improved; in addition, the monitoring module and the protective pressing plate are connected through the access line provided with multiple taps, so that the application range of the monitoring device is wider, the practicability is better, the monitoring device is connected with the distribution network automation terminal through the taps, the distribution network automation terminal is not required to be subjected to any structural transformation, and the function upgrading of the distribution network automation terminal can be easily realized.
Drawings
Fig. 1 is a schematic view of the overall structure of a monitoring device of a distribution network automation terminal protection pressing plate according to the present invention;
FIG. 2 is an exploded schematic view of FIG. 1;
fig. 3 is a schematic view of the connection between the housing and the display device of the monitoring device of the distribution network automation terminal protection pressing plate according to the present invention;
fig. 4 is a schematic view of the internal structure of the monitoring device of the distribution network automation terminal protection pressing plate of the invention;
fig. 5 is a schematic view of an access line structure of a monitoring device of a distribution network automation terminal protection pressing plate according to the present invention;
fig. 6 is a schematic electrical block diagram of a monitoring device of the distribution network automation terminal protection platen of the present invention.
Detailed Description
The drawings are for illustration purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.
Example 1:
fig. 1 to 5 show an embodiment of a monitoring device for a distribution network automation terminal protection pressing plate, which includes a monitoring module 1 electrically connected to the protection pressing plate of the distribution network automation terminal, an alarm module 2 electrically connected to the monitoring module 1, and a housing 3, where the monitoring module 1 is disposed inside the housing 3, the housing 3 includes a first housing 33 and a second housing 34 detachably connected to each other, the alarm module 2 is disposed on the first housing 3 in a penetrating manner, the second housing 3 is provided with a jack 31, and a plug 54 is inserted into the jack 31, the plug 54 is connected to an access line 4, and the jack 31 is electrically connected to the monitoring module 1; the monitoring module 1 is used for acquiring voltage signals at two ends of the protective pressing plate and triggering the alarm module 2 according to the voltage signals.
The monitoring module 1 is provided with a voltage detection circuit such as a voltmeter or a voltmeter, the monitoring module 1 can be provided with a trigger threshold value, then the monitoring module 1 is connected with a relay and connected with the alarm module 2 for alarm output, and when a voltage signal acquired by the monitoring module 1 reaches the trigger threshold value, the alarm module 2 is started for alarm; or the electricity meter with the model number ZH-4011 can be directly adopted, and the alarm can be output through a relay.
As shown in fig. 3, it should be noted that, of course, there should be two jacks 31 and corresponding access lines 4 to correspond to the two ends of the protection pressing plate, which is well known in the art and will not be described in detail herein.
The monitoring module 1 is arranged in the shell 3, and is only a preferred embodiment, which cannot be understood as the limitation of the scheme, and is used for protecting the circuit of the monitoring module 1 and preventing dust, moisture and the like from damaging the monitoring module 1, in addition, the alarm module 2 is arranged on the shell 3 in a penetrating way, so that the shielding of the shell 3 on an alarm lamp fire alarm bell is avoided, the reminding function of the alarm lamp and the alarm bell is more obvious, and meanwhile, the connecting wires among the monitoring module 1, the alarm module 2 and other accessory components can be arranged and contained in the shell 3, and the interference of the operation of workers when the monitoring module 1, the alarm module 2 and other accessory components are arranged on the distribution network automatic protection terminal is avoided; of course, in the specific implementation process, the monitoring module 1 and the alarm module 2 may be disposed at other places to implement the functions of the embodiment.
As shown in fig. 4, the alarm module 2 includes an alarm lamp and an alarm bell, specifically, an audible and visual alarm whose model is RJA-05F can be used, and the alarm lamp and the alarm bell are designed in an integrated manner, so that sound and light can be simultaneously emitted for reminding, the prompt effect is good, and meanwhile, the installation occupation position of the alarm module 2 can be reduced, so that the whole monitoring device is more compact in structure. It is worth noting that in this embodiment, the alarm lamp and the alarm bell are integrated, and implemented by the audible and visual alarm, which is only an optimal implementation manner, and in the specific implementation process, an independent alarm lamp and an independent alarm bell can be certainly adopted, so as to implement the audible and visual alarm function of the scheme.
As shown in fig. 5, the access line 4 in the present embodiment is provided with a plurality of taps 5, including a plug-in connector 51, a clamping connector 52, and a screw-in connector 53. Because the existing distribution network automatic terminal production enterprises are numerous, the types of equipment produced by each enterprise are different, the types of the protection pressing plates are different, and the distribution network automatic terminal production enterprises comprise wiring columns, jack type joints, thread type joints, wire spring hole type joints and the like, the clamping type joint 52 can be used for clamping a wiring column or a wire spring hole, the inserting type joint 51 can be used for being connected with the jack type protection pressing plate, and the screwing type joint 53 can be used for being connected with the thread type protection pressing plate, so that the tap 5 arranged in the way can be matched with various types of protection pressing plates, and the applicability of the monitoring device is higher.
The protection constant value display device comprises a display device 6 electrically connected with a monitoring module 1, wherein the display device 6 is exposed out of a shell 3, and the display device 6 is used for displaying monitoring data of the monitoring module 1, so that a worker can visually observe voltage values at two ends of a protection pressing plate at any time when modifying a protection constant value, and whether the constant value is set mistakenly or not is judged according to the voltage values.
As shown in fig. 3, in this embodiment, a button 61 capable of adjusting the trigger threshold of the monitoring module 1 may be further disposed on the display device 6, so as to adjust the trigger threshold, so that the trigger threshold may be set according to the outlet voltage of the distribution automation terminal.
The housing 3 in this embodiment is provided with a fixing device 7 for fixing the housing 3, and specifically, the fixing device 7 is a magnet fixedly connected to the housing 3. Because the box at distribution network automation terminal is generally made by iron, accomplish the electricity of monitoring module 1 like this and connect the back, accessible magnet adsorbs whole monitoring devices on the box at distribution network automation terminal, and is comparatively convenient and fast, has avoided the trouble that needs drilling to the destruction of box and arouse. Of course, the fixing of the housing 3 to the box of the distribution automation terminal by the magnet is only a preferred embodiment, and is not to be understood as limiting the present patent, and in the specific implementation process, it is needless to say that other manners such as adhesion may be used to fix the housing 3 to the box.
The monitoring device further comprises a power supply 8 for supplying power to the monitoring module 1, the alarm module 2 and the display device 6, wherein the power supply 8 can be a rechargeable lithium ion battery fixedly arranged in the shell 3, and the rated voltage of the monitoring module 1, the alarm module 2, the display device 6 and the like is generally lower and is not suitable for being directly supplied with power through a distribution network automation terminal, so that the lithium ion battery is independently arranged to provide suitable voltage for each device in the monitoring device, the lithium ion battery can be charged at any time, the service life of the monitoring device is prolonged, and troubles caused by battery replacement are avoided.
As shown in fig. 3, in addition, a switch 32 for turning on or off the whole device is also included in the present embodiment to better control the operation of the monitoring device.
According to the invention, the monitoring device and two ends of the protection pressing plate of the distribution network automation terminal are connected through the access line 4 provided with various taps 5, when the protection fixed value of the distribution network automation terminal is modified, if the protection fixed value is set wrongly, voltage difference occurs at two ends of the protection pressing plate, the monitoring module 1 transmits a voltage difference signal to the display device 6 for displaying after detecting the voltage difference, and the alarm module 2 is started for alarming to remind a worker to correct the protection fixed value in time, so that the trouble of checking and searching after all the fixed values are modified is avoided, the working efficiency is improved, the power failure duration caused by maintenance operation is reduced, and the power consumption experience of a user is improved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited 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 fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. 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 "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean 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 are not necessarily intended to 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 and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A monitoring device for a protection pressing plate of a distribution network automation terminal is characterized by comprising a monitoring module (1) electrically connected with the protection pressing plate of the distribution network automation terminal and an alarm module (2) electrically connected with the monitoring module (1); the monitoring module (1) is used for acquiring voltage signals at two ends of the protective pressing plate and triggering the alarm module (2) according to the voltage signals.
2. The monitoring device of the distribution network automation terminal protection pressure plate according to claim 1, characterized in that the alarm module (2) comprises an alarm lamp and an alarm bell.
3. The monitoring device of a distribution network automation terminal protection pressure plate according to claim 2, characterized in that the monitoring module (1) is detachably connected with an access line (4) for electrical connection with the protection pressure plate.
4. The monitoring device of a distribution network automation terminal protection pressure plate according to claim 3, characterized in that the access line (4) is provided with a plurality of taps (5).
5. The monitoring device of the distribution network automation terminal protection pressure plate according to claim 4, wherein the plurality of taps (5) comprise a plug-in connector (51), a clip-on connector (52) and a screw-in connector (53).
6. The monitoring device of the distribution network automation terminal protection pressure plate according to claim 5, characterized by further comprising a display device (6) electrically connected with the monitoring module (1), wherein the display device (6) is used for displaying the monitoring data of the monitoring module (1).
7. The monitoring device of the distribution network automation terminal protection pressing plate according to claim 6, further comprising a housing (3), wherein the monitoring module (1) is disposed inside the housing (3), the alarm module (2) is disposed on the housing (3) in a penetrating manner, and the display device (6) is disposed on an outer wall of the housing (3).
8. The monitoring device of a distribution network automation terminal protection pressure plate according to claim 7, characterized in that the housing (3) is provided with a fixing device (7) for fixing the housing (3).
9. The monitoring device of claim 8, wherein the fixing device (7) is a magnet fixedly connected to the housing (3).
10. The monitoring device of any one of claims 7 to 9, further comprising a power supply (8) for supplying power to the monitoring module (1), the alarm module (2) and the display device (6), wherein the power supply (8) is a rechargeable lithium ion battery fixedly disposed in the housing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011585501.2A CN112834803A (en) | 2020-12-28 | 2020-12-28 | Monitoring device of distribution network automation terminal protection clamp plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011585501.2A CN112834803A (en) | 2020-12-28 | 2020-12-28 | Monitoring device of distribution network automation terminal protection clamp plate |
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| CN112834803A true CN112834803A (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011585501.2A Pending CN112834803A (en) | 2020-12-28 | 2020-12-28 | Monitoring device of distribution network automation terminal protection clamp plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114113770A (en) * | 2021-12-03 | 2022-03-01 | 中国南方电网有限责任公司超高压输电公司广州局 | Voltage detection device and detection method |
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Application publication date: 20210525 |