Monitoring equipment and monitoring cabinet body

Abstract

The utility model relates to a monitoring device and a monitoring cabinet body, and the monitoring device comprises a monitoring main body which is provided with a current signal access terminal and a voltage signal access terminal, and the current signal access terminal and the voltage signal access terminal are both used for being electrically connected with a mutual inductor; the monitoring main body is also provided with a circuit board, the circuit board is electrically connected with the current signal access terminal and the voltage signal access terminal, and the circuit board is provided with a signal acquisition module; the display screen is installed on the monitoring main body, and the display screen is in signal electric connection with the signal acquisition module. The current signal access terminal and the voltage signal access terminal of the monitoring main body are connected to the mutual inductor, so that a worker can observe the numerical values of the mutual inductor received by the current signal access terminal and the voltage signal access terminal through the display screen so as to judge whether the mutual inductor fails or not; the problems of high cost, low efficiency, poor timeliness and the like of a mode of detaching the mutual inductor needing to be calibrated and sending the mutual inductor to a calibration center for detection in the prior art are solved.

Description

Technical Field

[0001] This application relates to the technical field of transformer detection, and specifically relates to a monitoring device and a monitoring cabinet body. Background Art

[0002] At present, most of the sales electricity of the State Grid is measured by transformers. To ensure the accuracy of the measurement results of the transformers, it is necessary to regularly calibrate the transformers.

[0003] In the related art, the regular calibration method of the transformer is to disassemble the transformer to be calibrated and send it to the calibration center for detection. However, this calibration method has problems such as high cost, low efficiency, and poor timeliness. Summary of the Invention

[0004] This application provides a monitoring device and a monitoring cabinet body, which can solve the problems of high cost, low efficiency, and poor timeliness in the related art of disassembling the transformer to be calibrated and sending it to the calibration center for detection.

[0005] In a first aspect, an embodiment of this application provides a monitoring main body. The monitoring main body is installed with a current signal access terminal and a voltage signal access terminal, and both the current signal access terminal and the voltage signal access terminal are used for electrically connecting with a transformer; the monitoring main body is also installed with a circuit board, the circuit board has a signal acquisition module, the signal acquisition module is electrically connected with the current signal access terminal and the voltage signal access terminal, and the signal acquisition module is used for acquiring the fundamental wave frequency, fundamental wave phase, and fundamental wave amplitude of the current and voltage; a display screen, the display screen is installed on the monitoring main body, and the display screen is electrically connected with the signal acquisition module in a signal manner.

[0006] In combination with the first aspect, in an embodiment, the monitoring main body is also installed with an antenna interface; the monitoring device further includes an external antenna, and the external antenna is connected to the antenna interface to electrically connect the external antenna with the circuit board.

[0007] In combination with the first aspect, in an embodiment, the monitoring main body is also provided with a SIM card slot, and an elastic member is installed in the SIM card slot.

[0008] In combination with the first aspect, in an embodiment, the monitoring main body is provided with a function button, the function button is electrically connected to the circuit board, and the function button is used for driving the page conversion of the display screen.

[0009] In combination with the first aspect, in an embodiment, the monitoring main body is provided with a first network port and a second network port, and the first network port and the second network port are arranged on opposite sides of the monitoring main body.

[0010] In combination with the first aspect, in one embodiment, the monitoring device further includes an indicator light, and the indicator light is connected to a light-emitting component of the circuit board through a high-brightness light guide column.

[0011] In combination with the first aspect, in one embodiment, a chip is installed on the monitoring body; and a heat dissipation grille is provided on the monitoring body, and the heat dissipation grille is provided on one side of the chip.

[0012] In combination with the first aspect, in one embodiment, a back rail buckle is provided on the monitoring body, and the back rail buckle is used for installation on a rail of a cabinet in a substation.

[0013] In combination with the first aspect, in one embodiment, the monitoring body is further provided with a time synchronization signal terminal, and the time synchronization signal terminal is electrically connected to the circuit board.

[0014] In a second aspect, an embodiment of the present application further provides a monitoring cabinet, which includes the monitoring device as described above. The monitoring cabinet further includes: an installation cabinet, the monitoring body is installed on the installation cabinet; a mutual inductor, the mutual inductor is installed on the installation cabinet, and the mutual inductor is electrically connected to the current signal access terminal and the voltage signal access terminal respectively.

[0015] The beneficial effects brought by the technical solutions provided in the embodiments of the present application include:

[0016] By connecting the current signal access terminal and the voltage signal access terminal electrically connected to the circuit board in the monitoring body to the mutual inductor, the staff can observe various values in the mutual inductor received through the current signal access terminal and the voltage signal access terminal through the display screen to determine whether the mutual inductor fails, solving the problems of high cost, low efficiency, and poor timeliness in the related art of disassembling the mutual inductor to be calibrated and sending it to a calibration center for detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a three-dimensional structural diagram of the monitoring device provided by the embodiment of the present application;

[0019] Figure 2 It is a bottom view structural diagram of the monitoring device provided by the embodiment of the present application;

[0020] Figure 3Schematic front view structure diagram of the monitoring device provided by the embodiment of the present application;

[0021] Figure 4 Schematic side view structure diagram of the monitoring device provided by the embodiment of the present application;

[0022] Figure 5 Schematic top view structure diagram of the monitoring device provided by the embodiment of the present application.

[0023] In the figure:

[0024] 1. Monitoring main body; 11. Current signal access terminal; 12. Voltage signal access terminal; 13. Display screen; 14. Heat dissipation grille; 15. Back rail buckle; 16. Type-C interface;

[0025] 2. Antenna interface;

[0026] 3. SIM card slot;

[0027] 4. Function button;

[0028] 51. First network port; 52. Second network port;

[0029] 6. Indicator light;

[0030] 7. Time synchronization signal terminal interface. Detailed implementation manners

[0031] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0032] The embodiment of the present application provides a monitoring device, which can solve the problems of high cost, low efficiency and poor timeliness in the related art, such as disassembling the mutual inductor to be calibrated and sending it to the calibration center for detection.

[0033] See Figure 1As shown in the figure, a monitoring device provided by an embodiment of the present application may include: a monitoring main body 1, where a current signal access terminal 11 and a voltage signal access terminal 12 are installed on the monitoring main body 1, and both the current signal access terminal 11 and the voltage signal access terminal 12 are used for electrically connecting to a current transformer; the monitoring main body 1 is further installed with a circuit board, and the circuit board has a signal acquisition module. Specifically, there may be an acquisition chip on the circuit board, and the signal acquisition module is on the acquisition chip. The signal acquisition module is electrically connected to the current signal access terminal 11 and the voltage signal access terminal 12. The signal acquisition module is used for acquiring the fundamental wave frequency, fundamental wave phase and fundamental wave amplitude of the current and voltage. That is, in the embodiment of the present application, the fundamental wave frequency, fundamental wave phase and fundamental wave amplitude of the current and voltage accessed to the monitoring device are acquired through the signal acquisition module; a display screen 13, the display screen 13 is installed on the monitoring main body 1, and the display screen 13 is electrically connected to the signal acquisition module in a signal manner. The data acquired can be observed through the display screen. After the data of the fundamental wave frequency, fundamental wave phase and fundamental wave amplitude are acquired, they can be displayed on the display screen 13, so that the staff can intuitively and quickly determine whether each data is normal.

[0034] In the embodiment of the present application, by connecting the current signal access terminal 11 and the voltage signal access terminal 12 electrically connected to the circuit board in the monitoring main body 1 to the current transformer, the monitoring main body 1 can access the current signal and the voltage signal respectively through the current signal access terminal 11 and the voltage signal access terminal 12 to supply power to the monitoring main body 1, and the staff can observe various values in the current transformer received through the current signal access terminal 11 and the voltage signal access terminal 12 through the display screen 13 to determine whether the current transformer fails. The current signal access terminal 11 and the voltage signal access terminal 12 can be connected to the secondary side output port on the current transformer. The current signal access terminal 11 and the voltage signal access terminal 12 can adopt 5.08 pitch 5Pin pluggable terminal blocks. The wire diameter of the wire can accommodate 28 - 12AWG and can withstand a rated current of 15A. The plastic parts at the current signal access terminal 11 and the voltage signal access terminal 12 can be made of PA66 fireproof plastic material, which is high-temperature resistant and corrosion-resistant. The busbar is made of bronze conductor and is nickel-plated on the surface for antioxidant treatment, with good electrical conductivity.

[0035] Preferably, the display screen 13 uses a 3.5-inch LCD touch liquid crystal display unit module. Since there may be a large amount of data obtained from the circuit board and it cannot be fully displayed on one page, the display screen 13 is set as a touch screen. Staff can quickly adjust the data they need to observe to the display page through the touch screen. Moreover, the display unit module can also use a high-resolution matte A-grade TFT screen, which has advantages such as a wide viewing angle, delicate display, high resolution, and soft and non-glare brightness. By using the monitoring device to monitor the current transformer in real time, it solves the problems in the related technology, such as high cost, low efficiency, and poor timeliness of the method of disassembling the current transformer to be calibrated and sending it to the calibration center for detection. Further, the display screen 13 can also display the temperature and humidity values in the installation environment of the monitoring device. Specifically, the circuit board in the monitoring device is connected to other devices, and the other devices can be transformers, etc. Thus, the temperature and humidity data collected from other devices such as transformers can be transmitted to this device.

[0036] In some alternative embodiments, the monitoring main body 1 is further equipped with an antenna interface 2. The antenna interface 2 can adopt a 4G or GPS universal antenna interface 2, and the antenna interface 2 can be connected to the circuit board; the monitoring device further includes an external antenna, and the external antenna is connected to the antenna interface 2 to electrically connect the external antenna to the circuit board. Some customers may need to transmit the data obtained from the monitoring device to the background, and the situation of the current transformer can be monitored in the background. Therefore, by connecting the external antenna to the antenna interface 2, the signal transmission that needs to be transmitted inside the monitoring device is strengthened, and the stability of data transmission is improved. The external antenna can be installed inside the substation or outside the substation. Further, the antenna interface 2 is arranged on the side of the monitoring main body 1 where the display screen 13 is provided to facilitate the connection and wiring of the antenna interface 2 and the external antenna.

[0037] See Figure 2 As shown, in some alternative embodiments, the monitoring main body 1 is further provided with a SIM card slot 3. An elastic member is installed in the SIM card slot 3. In the embodiment of the present application, the antenna interface 2 adopts a 24G universal antenna interface 2 for the antenna interface 2. Then, a 4G communication card can be inserted into the SIM card slot 3, and by accessing the external antenna through the antenna interface 2, long-distance wireless communication data transmission can be achieved. Preferably, the SIM card slot 3 adopts a non-drawer pop-up design, that is, a small-diameter small-wire-diameter spring or a cut-type elastic piece is provided on the bottom wall of the SIM card slot 3. A circular groove is provided on the monitoring main body 1. When installing the SIM card, insert the SIM card into the SIM card slot 3 and press it once to lock it in the slot. When removing the SIM card, also press it to make the SIM card bounce out. This setting method is convenient for inserting and removing the SIM card.

[0038] In some alternative embodiments, the monitoring main body 1 is provided with a function button 4, which is electrically connected to the circuit board. The function button 4 is used to drive the page conversion of the display screen 13. In the embodiments of the present application, the function button 4 adopts a plug-in tactile switch, and functions such as function selection, parameter setting, and page query can be performed by operating the function button 4. Preferably, the button uses a PPA material button that is resistant to high temperatures, has strong toughness and strong pressure resistance, and is attached with a copper-tin plated cover plate and a stainless steel spring sheet, so that the mechanical life of the function button 4 exceeds 300,000 times, and the dielectric strength is ≥250 VAC / 1 min. In the embodiments of the present application, current and voltage signals can be respectively accessed through the current signal access terminal 11 and the voltage signal access terminal 12. While powering the device, high-frequency acquisition of current and voltage data is performed, and further, each value is displayed through the display screen 13, and page selection and operation can be performed through the function button 4.

[0039] See Figure 5 As shown, in some alternative embodiments, the monitoring main body 1 is provided with a first network port 51 and a second network port 52. The first network port 51 and the second network port 52 are arranged on opposite sides of the monitoring main body 1. The first network port 51 can be a gigabit network port, and the second network port 52 can be a hundred-megabit network port. Wired data synchronization transmission can be achieved by connecting network cables to the in-station switch through the gigabit network port and the hundred-megabit network port. Both the gigabit network port and the hundred-megabit network port can be RJ45 type interfaces, which have higher versatility. The gigabit network port and the hundred-megabit network port can be respectively arranged on the upper and lower surfaces of the monitoring main body 1 to facilitate the staff to insert the network cable. The gigabit network port and the hundred-megabit network port can maintain stable and reliable electrical connections with the modular socket elastic pieces through gold-plated wires or socket holes. When the modular plug is inserted, the maximum pulling strength can be generated outside the interface of the plug and the socket, thereby ensuring the stability of the connection. The transmission rate of the network port is usually 10M / 100 / 1000 Mbps and can work in full-duplex and half-duplex modes.

[0040] See Figure 3 As shown, in some alternative embodiments, the monitoring device further includes an indicator light 6. The indicator light 6 is connected to the light-emitting component of the circuit board through a high-brightness light guide column. The indicator light 6 can include a power light, an operation light, a time synchronization light, a communication light, etc. The high-brightness light guide column can be miniaturized. The miniaturized high-brightness light guide column transmits the LED light designed on the circuit board to the panel of the monitoring main body 1 to display the relevant states of each component, reducing power consumption while also reducing the volume of the device.

[0041] See Figure 2As shown, in some alternative embodiments, the monitoring body 1 is equipped with a chip, which can be soldered onto a circuit board and has the function of collecting information; and the monitoring body 1 is provided with a heat dissipation grille 14, which is arranged on one side of the chip. The chip generates relatively high heat during operation, and by arranging the heat dissipation grille 14 around the chip, heat dissipation can be accelerated. Preferably, heat dissipation grilles 14 are provided on both sides of the monitoring body 1, and the heat dissipation grilles 14 on both sides are close to the chip. The heat dissipation grille 14 in the embodiment of the present application is the optimal heat dissipation air duct designed through product thermal simulation, which can radiate the heat generated during the operation of the monitoring device to the outside through the heat dissipation grille 14 in the fastest way, enabling the device to operate in a stable and reliable temperature environment for a long time.

[0042] See Figure 4 As shown, in some alternative embodiments, the monitoring body 1 is provided with a back rail buckle 15, which is used to be installed on the rail of the cabinet in the substation. In the embodiment of the present application, setting the back rail buckle 15 on the monitoring body 1 that is adapted to the rail of the cabinet in the substation can facilitate the installation of the monitoring body 1, and the back rail buckle 15 can be adapted to a common 35mm standard rail. After installing the back rail buckle 15 on the C-shaped groove of the rail, the buckle locking device can be toggled.

[0043] See Figure 5 As shown, in some alternative embodiments, the monitoring body 1 is further provided with a time synchronization signal terminal, which is electrically connected to the circuit board. The time synchronization signal terminal can be soldered onto the circuit board, and a time synchronization signal terminal interface 7 electrically connected to the time synchronization signal terminal can also be fixed on the monitoring body. The time synchronization signal terminal interface 7 can adopt a 3.81 pitch 4Pin pluggable wiring terminal, and the wire diameter of the wire can accommodate 28 - 16AWG and can withstand a rated current of 8A. The plastic part at the time synchronization signal terminal interface 7 can be made of PA66 fireproof plastic material, which is high-temperature resistant and corrosion-resistant. The current-carrying bar adopts a bronze conductor, with a nickel plating on the surface for antioxidant treatment and good electrical conductivity. By setting the time synchronization signal terminal, the information collection time on the monitoring device can be synchronized with the real time.

[0044] In some alternative embodiments, the monitoring body 1 can also be provided with a miniaturized Type-C interface 16, which supports functions such as data transmission and output according to the USB standard and is a dedicated interface for on-site debugging and function expansion. The Type-C interface 16 is made of all-copper material, and the data transmission is stable. When on-site engineering personnel need to debug the device, they can connect the communication data cable to the monitoring device through the Type-C interface 16 for device debugging.

[0045] An embodiment of the present application further provides a monitoring cabinet, which may include the monitoring device as described above. The monitoring cabinet further includes: an installation cabinet, the monitoring main body 1 is installed in the installation cabinet, and the installation cabinet may be a cabinet installed in a substation, and a guide rail C-shaped groove may be installed on the inner wall of the installation cabinet, so that the monitoring main body 1 can be fixed through the guide rail C-shaped groove; an instrument transformer, the instrument transformer is installed in the installation cabinet, and the instrument transformer is electrically connected to the current signal access terminal 11 and the voltage signal access terminal 12 respectively.

[0046] The monitoring device in the present application can monitor the monitoring status of the voltage transformer for distribution network metering without power interruption, realize the accurate evaluation of the metering performance under the operating conditions of the instrument transformer, improve the metering supervision efficiency of the metering equipment, improve the reliability of the equipment, and reduce the risk of power settlement deviation caused by the inaccuracy of the metering equipment.

[0047] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0048] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "including", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0049] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A monitoring device, characterized in that, It includes: A monitoring main body (1), on which a current signal access terminal (11) and a voltage signal access terminal (12) are installed, and both the current signal access terminal (11) and the voltage signal access terminal (12) are used for electrically connecting with an instrument transformer; The monitoring main body (1) is further installed with a circuit board, the circuit board has a signal acquisition module, the signal acquisition module is electrically connected with the current signal access terminal (11) and the voltage signal access terminal (12), and the signal acquisition module is used for acquiring the fundamental wave frequency, fundamental wave phase and fundamental wave amplitude of the current and voltage; A display screen (13), the display screen (13) is installed on the monitoring main body (1), and the display screen (13) is electrically connected with the signal acquisition module in signal.

2. The monitoring device according to claim 1, wherein: The monitoring main body (1) is further installed with an antenna interface; The monitoring device further includes an external antenna, and the external antenna is connected to the antenna interface (2) so that the external antenna is electrically connected with the circuit board.

3. The monitoring device according to claim 2, wherein: The monitoring main body (1) is further provided with a SIM card slot (3), and an elastic member is installed in the SIM card slot (3).

4. The monitoring device according to claim 1, wherein: The monitoring main body (1) is provided with a function key (4), the function key (4) is electrically connected to the circuit board, and the function key (4) is used for driving the page conversion of the display screen (13).

5. The monitoring device according to claim 1, wherein: The monitoring main body (1) is provided with a first network port (51) and a second network port (52), and the first network port (51) and the second network port (52) are arranged on opposite sides of the monitoring main body (1).

6. The monitoring device according to claim 1, wherein: The monitoring device further includes an indicator light (6), and the indicator light (6) is connected to the light-emitting component of the circuit board through a high-brightness light guide column.

7. The monitoring device according to claim 1, wherein: The monitoring main body (1) is installed with a chip; And the monitoring main body (1) is provided with a heat dissipation grille (14), and the heat dissipation grille (14) is arranged on one side of the chip.

8. The monitoring device according to claim 1, wherein: The monitoring main body (1) is provided with a back rail buckle (15), and the back rail buckle (15) is used for installing on the rail of the cabinet body in a substation.

9. The monitoring device according to claim 1, wherein: The monitoring main body (1) is further provided with a time synchronization signal terminal, and the time synchronization signal terminal is electrically connected to the circuit board.

10. A monitoring cabinet, characterized in that, It includes the monitoring device according to any one of claims 1 to 9, and the monitoring cabinet body further includes: An installation cabinet, and the monitoring main body (1) is installed in the installation cabinet; An instrument transformer, the instrument transformer is installed in the installation cabinet, and the instrument transformer is respectively electrically connected to the current signal access terminal (11) and the voltage signal access terminal (12).

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