Installation verification device for transformer station pressure plate on-line monitoring sensor

Abstract

The invention relates to the technical field of transformer substation pressing plate installation and verification, in particular to an installation and verification device for a transformer substation pressing plate online monitoring sensor. Comprising a shell formed by superposing an upper plate and a lower plate, the shell is vertically penetrated by an opening cavity and a closing cavity, a clamping groove is formed in the opening cavity, an upper photoelectric sensor and a lower photoelectric sensor are installed in the clamping groove, a reed switch is arranged between the two photoelectric sensors, and an indicator light and a control baffle are embedded in the upper end face of the upper plate; according to the invention, whether the detection device installed on the transformer station pressure plate is in place can be accurately verified, the manufacturing cost is reduced to about 100 yuan, and the whole body is in a hollow square shape and has the characteristic of firmness; the verification mode of the invention adopts a mode of double photoelectric sensors and one magnetic induction sensor, and triple insurance enables the verification to be more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of installation and verification of a transformer substation pressure plate, and in particular to an installation and verification device for an online monitoring sensor of a transformer substation pressure plate. Background Art

[0002] The substation pressure plate, also known as the connecting plate, is a control element installed in the substation protection screen and the distribution cabinet. The pressure plate can easily connect and disconnect the circuit when needed due to its unique structural design. In the power system, the pressure plate undertakes an important protection function. When the system fails or an abnormal situation occurs, the pressure plate can quickly cut off the faulty circuit, thereby protecting other normally operating equipment from being affected. The design of the pressure plate makes the connection and disconnection of the circuit simple and convenient, which provides great convenience for the maintenance and inspection of the power system. Maintenance personnel can easily isolate the fault area by operating the pressure plate and perform necessary maintenance work.

[0003] Magnetic induction sensors are generally installed on the pressure plate of the substation to monitor whether the pressure plate of the substation is in the operation or withdrawal state. The installation of magnetic induction sensors is also an important part of the transformation of old equipment to achieve unmanned real-time monitoring. However, since the circuit is always in operation, some substation distribution cabinets cannot be disassembled and installed, and magnetic induction sensors can only be installed on the existing substation pressure plate.

[0004] After the magnetic induction sensor is installed, due to manual installation, there will inevitably be deviations in the installation position. Sometimes the magnetic induction device still shows a tripped state after manual closing, or still shows a closed state when opening (affected by other factors). For this reason, an installation verification device is urgently needed to ensure that the installation position is correct after each installation of the magnetic induction sensor. Summary of the invention

[0005] In order to make up for the deficiencies in the prior art and achieve the above functions, the present invention provides an installation and verification device for an online monitoring sensor for a pressure plate of a transformer substation.

[0006] The present invention is achieved through the following technical solutions: An installation and verification device for an online monitoring sensor of a pressure plate in a substation comprises a shell composed of an upper plate and a lower plate stacked together, the shell is penetrated by a gate-opening cavity and a gate-closing cavity from top to bottom, a card slot is provided in the gate-opening cavity, and two upper and lower photoelectric sensors are installed in the card slot, and a reed switch is provided between the two photoelectric sensors; An indicator light and a control baffle are embedded on the upper end surface of the upper plate.

[0007] Furthermore, in order to better implement the present invention, the upper plate and the lower plate are fixed by bolts, and the two are limited by internal fixing pins, and arc-shaped buckle grooves are provided at the bottom of both side edges of the upper plate.

[0008] Furthermore, in order to better realize the present invention, the center line angle between the opening chamber and the closing chamber is 30 degrees, a position baffle is arranged between the opening chamber and the closing chamber, the position baffle is connected to the shell as a whole, the angle of the position baffle body is 30 degrees, and the side of the position baffle is tightly attached to the substation pressure plate in the opening state.

[0009] Furthermore, in order to better implement the present invention, the bottom edges of the opening chamber and the closing chamber are both rounded.

[0010] Furthermore, in order to better implement the present invention, the card slot is located on the upper plate, and the card slot is directly opposite to the magnetic induction sensor fixed on the transformer substation pressure plate.

[0011] Furthermore, in order to better realize the present invention, two upper and lower partition plates are installed in the card slot and are divided into three parts by the partition plates, the reed switch is fixed between the two partition plates, and the photoelectric sensor is installed at the positions of the upper and lower parts facing the magnetic induction sensor, and the external wiring of the photoelectric sensor extends into the upper plate through the wire holes on the side wall of the card slot.

[0012] Furthermore, in order to better implement the present invention, the outer edge of the photoelectric sensor is flush with the edge of the card slot.

[0013] Furthermore, in order to better implement the present invention, the upper plate and the lower plate are internally connected, a control module and a power supply are provided at the bottom of the control baffle, and the indicator light is connected to the control module.

[0014] The beneficial effects of the present invention are: The present invention can accurately check whether the detection device installed on the substation pressure plate is in place. The manufacturing cost of the present invention is reduced to about 100 yuan, and the overall shape is a hollow block, which is sturdy. The verification method of the present invention adopts a double photoelectric sensor plus a magnetic induction sensor. The triple insurance makes the verification more accurate. The present invention can be cleverly clamped on the substation pressure plate in the open state, and it is very convenient to take and put. The present invention has a built-in control module and energy supply module, and no external cables are required, which greatly facilitates the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the top view of the structure after the present invention is clamped on the transformer substation pressure plate; Figure 2 for Figure 1 3D schematic diagram of Figure 3 for Figure 2 Schematic diagram after removing the substation pressure plate; Figure 4 for Figure 3 Schematic diagram after removing the photoelectric sensor; Figure 5 for Figure 1 3D schematic diagram of the structure viewed from above.

[0016] In the figure: 1. Shell, 101. Upper plate, 102. Lower plate, 2. Disconnection chamber, 201. Closing chamber, 3. Disconnection baffle, 4. Slot, 401. Partition plate, 402. Wire hole, 5. Reed switch, 6. Photoelectric sensor, 7. Indicator light, 8. Control baffle, 9. Magnetic induction sensor, 10. Buckle slot, 11. Substation pressure plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0019] like Figures 1 to 5 As shown, the present invention includes a housing 1 composed of an upper plate 101 and a lower plate 102, which is used to be sleeved outside the substation pressure plate 11. The housing 1 is penetrated by a gate-opening chamber 2 and a gate-closing chamber 201 from top to bottom, providing a clamping space for the substation pressure plate 11. The gate-opening chamber 2 and the gate-closing chamber together constitute a storage space for the substation pressure plate 11 in the gate-opening state. A clamping slot 4 is provided in the gate-opening chamber 2, and two upper and lower photoelectric sensors 6 are installed in the clamping slot 4, and a reed switch 5 is provided between the two photoelectric sensors 6; An indicator light 7 and a control baffle 8 are embedded on the upper end surface of the upper plate 101 to indicate whether the installation is correct.

[0020] The upper plate 101 and the lower plate 102 are fixed by bolts, and the two are limited by internal fixing pins, that is, the upper and lower parts are designed to be separated, and the circuit boards, wires and other control units are integrated inside the two parts; arc-shaped buckle grooves 10 are provided at the bottom of both sides of the upper plate 101, and the buckle grooves 10 are convenient for taking and placing the device when it is attached to the distribution cabinet, and can also facilitate the separation of the upper plate 101 and the lower plate 102 during disassembly and assembly.

[0021] The centerline angle between the opening chamber 2 and the closing chamber 201 is 30 degrees. A dividing baffle 3 is arranged between the opening chamber 2 and the closing chamber 201. The dividing baffle 3 is connected to the shell 1 as a whole, and can be formed by wire cutting process to ensure edge accuracy. The angle of the main body of the dividing baffle 3 is 30 degrees. The side of the dividing baffle 3 is tightly attached to the substation pressure plate 11 in the opening state because the two are in good fit.

[0022] The bottom edges of the opening and closing chambers 201 are both chamfered. After the staff opens the gate, the substation pressure plate 11 may not be at an angle of 30 degrees (28 or 2 degrees). At this time, the chamfer can be smoothly introduced into the two opening and closing chambers 2 and 201 using the arc.

[0023] The card slot 4 is located on the upper plate 101, and the card slot 4 is facing the magnetic induction sensor 9 fixed on the substation pressure plate 11. The magnetic induction sensor 9 here is a related setting in the prior art, and its purpose is to detect the state of the substation pressure plate 11. The purpose of this patent is to verify whether the installation of this sensor is correct; The slot 4 is installed with two upper and lower partition plates 401 and is divided into three parts by the partition plates 401. The reed switch 5 is fixed between the two partition plates 401. The photoelectric sensor 6 is installed at the positions of the upper and lower parts facing the magnetic induction sensor 9 to verify whether the front and rear positions of the magnetic induction sensor 9 installed on the substation pressure plate 11 meet the standards; the outer edge of the photoelectric sensor 6 is flush with the edge of the slot 4, and the external wiring of the photoelectric sensor 6 extends into the upper plate 101 through the wire hole 402 on the side wall of the slot 4.

[0024] The upper plate 101 and the lower plate 102 are internally connected, a control module and a power supply are arranged at the bottom of the control baffle 8, the indicator light 7 is connected to the control module, and the settings of switches and the like belong to the prior art and will not be described in detail.

[0025] The operation steps and working principle of the present invention are: Since the substation pressure plate 11 is always vertically fixed on the power distribution cabinet and cannot be disassembled (the operating state cannot be changed) during the renovation of old equipment, the operation of the present invention is based on the premise that the substation pressure plate 11 is fixed.

[0026] (1) Confirm that the substation pressure plate 11 is in the open state; (2) Snap the present invention onto the substation pressure plate 11 so that the bottom end surface of the substation pressure plate 11 fits with the distribution cabinet to ensure firmness; (3) At this time, since the magnetic induction sensor 9 is close to the reed switch 5, the magnetic lines of force of the magnetic induction sensor 9 pass through the reed switch 5, and the two reeds of the reed switch 5 will contact due to the action of magnetic force, changing its switch state to make the circuit conductive, and the left side of the indicator light 7 will display green, thereby detecting whether the magnetic sensor 9 is working. When the magnetic material is removed, the reeds separate due to their own elasticity, and the circuit is disconnected; (4) At this time, the two photoelectric sensors 6 will verify whether the position of the magnetic induction sensor 9 meets the standard, that is, the two detection distances are checked for consistency and the requirements are reviewed. When both meet the requirements, the installation position of the magnetic induction sensor 9 is neither far nor near, just right, and it can work normally, and the right side of the indicator light 7 turns green; if the installation position of the magnetic induction sensor 9 is too far or too near, the right side of the indicator light 7 turns red, and the staff needs to remove the present invention and reinstall the magnetic induction sensor 9.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An installation verification device for an online monitoring sensor of a pressure plate in a substation, characterized in that: It comprises a shell (1) composed of an upper plate (101) and a lower plate (102) stacked together, the shell (1) being penetrated from top to bottom by a gate-opening chamber (2) and a gate-closing chamber (201), a card slot (4) being provided in the gate-opening chamber (2), and two upper and lower photoelectric sensors (6) being installed in the card slot (4), and a reed switch (5) being provided between the two photoelectric sensors (6); An indicator light (7) and a control baffle (8) are embedded on the upper end surface of the upper plate (101).

2. The installation verification device for the substation pressure plate online monitoring sensor according to claim 1 is characterized in that: The upper plate (101) and the lower plate (102) are fixed by bolts, and the two are limited by internal fixing pins. Arc-shaped buckle grooves (10) are provided at the bottom of both sides of the upper plate (101).

3. The installation verification device for the substation pressure plate online monitoring sensor according to claim 1 is characterized in that: The centerline angle between the opening chamber (2) and the closing chamber (201) is 30 degrees, a position baffle (3) is provided between the opening chamber (2) and the closing chamber (201), the position baffle (3) is integrally connected to the housing (1), the angle of the position baffle (3) body is 30 degrees, and the side of the position baffle (3) is in close contact with the transformer substation pressure plate (11) in the opening state.

4. The installation verification device for the substation pressure plate online monitoring sensor according to claim 1 is characterized in that: The bottom edges of the opening chamber (2) and the closing chamber (201) are both rounded.

5. The installation verification device for the substation pressure plate online monitoring sensor according to claim 1 is characterized in that: The card slot (4) is located on the upper plate (101), and the card slot (4) is directly opposite to the magnetic induction sensor (9) fixed on the transformer substation pressure plate (11).

6. The installation verification device for the online monitoring sensor of the pressure plate of the substation according to claim 5 is characterized in that: The card slot (4) is provided with two upper and lower partition plates (401) and is divided into three parts by the partition plates (401); the reed switch (5) is fixed between the two partition plates (401); the photoelectric sensor (6) is installed at positions of the upper and lower parts facing the magnetic induction sensor (9); and the external wiring of the photoelectric sensor (6) extends into the interior of the upper plate (101) through the wire hole (402) on the side wall of the card slot (4).

7. The installation verification device for the substation pressure plate online monitoring sensor according to claim 6 is characterized in that: The outer edge of the photoelectric sensor (6) is flush with the edge of the card slot (4).

8. The installation verification device for the substation pressure plate online monitoring sensor according to claim 1 is characterized in that: The upper plate (101) and the lower plate (102) are internally connected, a control module and a power supply are provided at the bottom of the control baffle (8), and the indicator light (7) is connected to the control module.

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