A high-supply and high-meter simulation metering cabinet

Abstract

The present invention relates to a high-power supply and high-meter simulation metering cabinet, including a voltage transformer, a current transformer, a junction box, an electric energy meter, a conversion switch, a voltmeter, a mounting frame and a display board, the primary winding of the voltage transformer and the primary winding of the current transformer are electrically connected to an external high-voltage power supply circuit respectively, the secondary winding of the voltage transformer and the secondary winding of the current transformer are electrically connected to the electric energy meter through a junction box respectively, and the junction box is electrically connected to the voltmeter through a conversion switch; the display board cover is arranged on the upper end of the mounting frame, and one side of the display board is rotatably connected to one side of the mounting frame, and the upper end of the mounting frame can be opened or closed, the voltage transformer, the current transformer and the junction box can be detachably installed in the mounting frame, and the electric energy meter, the conversion switch and the voltmeter can be detachably installed on the lower surface of the display board. The high-power supply and high-meter simulation metering cabinet provided by the present invention can strengthen the training of technical personnel's practical operation skills.

Description

Technical Field

[0001] The invention relates to the technical field of high-supply and high-meter simulation, and in particular to a high-supply and high-meter simulation metering cabinet. Background Art

[0002] For high-voltage power supply systems that operate independently, high-supply and high-metering should be used, and measurement should be done on the high-voltage side. In actual work, technical personnel have very few opportunities to come into contact with high-voltage metering devices, and they lack practical experience, making it difficult to train high-tech talents in the power industry. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a high-supply and high-meter simulation metering cabinet in response to the above-mentioned deficiencies in the prior art, to strengthen the practical training of technical personnel, to enable technical personnel to master the connection method of the metering device, to realize a training model that combines theory with practice, and which is safe, reliable and practical.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: a high-voltage power supply and high-voltage meter simulation meter cabinet, comprising a voltage transformer, a current transformer, a junction box, an electric energy meter, a conversion switch, a voltmeter, a mounting frame and a display board, the primary winding of the voltage transformer and the primary winding of the current transformer are respectively electrically connected to an external high-voltage power supply circuit, the secondary winding of the voltage transformer and the secondary winding of the current transformer are respectively electrically connected to the electric energy meter through the junction box, and the junction box is electrically connected to the voltmeter through the conversion switch;

[0005] The display board cover is arranged on the upper end of the mounting frame, and one side of the display board is rotatably connected to one side of the mounting frame, and can open or cover the upper end of the mounting frame. The voltage transformer, current transformer and junction box can be detachably installed in the mounting frame, and the electric energy meter, conversion switch and voltmeter can be detachably installed on the lower surface of the display board.

[0006] The beneficial effects of the present invention are as follows: the high-supply and high-meter simulation metering cabinet provided by the present invention restores the high-supply and high-meter metering cabinet, making it convenient for technical personnel to contact the high-voltage metering device, providing technical personnel with practical opportunities and cultivating their hands-on ability. At the same time, an installation frame is set to fix the voltage transformer, current transformer and junction box. On the one hand, the frame structure is conducive to the heat dissipation of the voltage transformer, current transformer and junction box, and on the other hand, it is convenient for technical personnel to better observe, understand and learn the various components of the simulation metering cabinet. The display board is installed with an electric energy meter, a conversion switch and a voltmeter, which is convenient for technical personnel to view the various detection data of the simulation metering cabinet.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows:

[0008] Furthermore: the housing of the voltage transformer, the housing of the current transformer and the housing of the junction box are all made of insulating materials.

[0009] The beneficial effect of the above further scheme is: the outer casing of the voltage transformer, current transformer and junction box is set to be insulated. On the one hand, it enhances the safety of the high-supply and high-meter simulation metering cabinet and prevents accidents caused by improper operation during training. On the other hand, it reduces the weight of the high-supply and high-meter simulation metering cabinet, facilitates its movement, and facilitates the smooth progress of the training process. In addition, the insulating shell has low cost, which reduces the cost of the high-supply and high-meter simulation metering cabinet as a training tool and avoids unnecessary waste.

[0010] Further: universal wheels are installed around the bottom of the installation frame.

[0011] The beneficial effect of the above further scheme is: setting universal wheels to facilitate the movement of the high-supply and high-meter simulation metering cabinet, and to facilitate training and demonstration.

[0012] Further: the high-supply and high-meter simulation metering cabinet also includes a retractable hydraulic rod, and both ends of the hydraulic rod are respectively connected to the display board and the installation frame.

[0013] The beneficial effect of the above further scheme is that the display board is supported on the installation frame by the hydraulic rod, which is convenient for display. After the training, the hydraulic rod can be retracted to cover the display board on the top of the installation frame, which is convenient for storage and saves space.

[0014] Further: the high-supply and high-meter simulation metering cabinet also includes a frequency meter, the secondary winding of the voltage transformer and the secondary winding of the current transformer are electrically connected to the frequency meter through the junction box respectively, and the frequency meter is detachably installed on the lower surface of the display board.

[0015] The beneficial effect of the above further scheme is: adding a frequency meter to measure the frequency of the high-voltage circuit and provide more data support for training and learning.

[0016] Further: the high-supply and high-meter simulation metering cabinet also includes a backup voltage transformer and a backup current transformer. The primary winding of the backup voltage transformer and the primary winding of the backup current transformer are electrically connected to the external high-voltage power supply circuit respectively, and the secondary winding of the backup voltage transformer and the secondary winding of the backup current transformer are electrically connected to the junction box respectively. The backup voltage transformer and the backup current transformer can be detachably installed in the installation frame.

[0017] The beneficial effect of the above further scheme is: a backup current transformer and a backup power transformer are provided to prevent the current transformer and the voltage transformer from being damaged, thereby preventing an accidental power failure of the external high-voltage power supply circuit and an accidental interruption of the training process.

[0018] Further: the high-supply and high-meter simulation metering cabinet also includes a fuse, the primary winding of the voltage transformer and the primary winding of the backup voltage transformer are electrically connected to the external high-voltage power supply circuit through the fuse respectively, and the fuse is installed on the lower surface of the display board.

[0019] The beneficial effect of the above further solution is: adding a fuse to protect the voltage transformer and the external high-voltage power supply circuit, preventing excessive current from burning out the voltage transformer and affecting the external high-voltage power supply circuit.

[0020] Further: the base of the fuse is a wooden board or a plastic board.

[0021] The beneficial effect of the above further scheme is: using wooden boards and plastic boards as the base of the fuse, while ensuring the insulation of the fuse base, reducing its weight, thereby reducing the weight of the entire simulated metering cabinet, and facilitating the movement and display of the metering cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the circuit structure of a high-supply and high-meter simulation metering cabinet provided by the present invention;

[0023] Figure 2 This is a structural schematic diagram of a high-supply and high-meter simulation metering cabinet provided by the present invention.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 11. Voltage transformer, 12. Spare voltage transformer, 21. Current transformer, 22. Spare current transformer, 3. Junction box, 4. Electric energy meter, 5. Transfer switch, 6. Voltmeter, 71. Mounting frame, 711. Universal wheel, 72. Display board, 721. Hydraulic rod, 8. Fuse, 81. Base, 9. Frequency meter, 10. High voltage power supply circuit. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] The present invention will be described below in conjunction with the accompanying drawings.

[0028] The embodiment of the present invention provides a high-voltage power supply and high-voltage meter simulation meter cabinet, including a voltage transformer 11, a current transformer 21, a junction box 3, an electric energy meter 4, a conversion switch 5, a voltmeter 6, a mounting frame 71 and a display board 72;

[0029] like Figure 1As shown, the primary winding of the voltage transformer 11 and the primary winding of the current transformer 21 are electrically connected to the external high-voltage power supply circuit 10, respectively, the secondary winding of the voltage transformer 11 and the secondary winding of the current transformer 21 are electrically connected to the electric energy meter 4 through the junction box 3, respectively, and the junction box 3 is electrically connected to the voltmeter 6 through the conversion switch 5;

[0030] like Figure 2 As shown, the display board 72 is covered on the upper end of the mounting frame 71, and one side of the display board 72 is rotatably connected to one side of the mounting frame 71, and the upper end of the mounting frame 72 can be opened or closed, the voltage transformer 11, the current transformer 21 and the junction box 3 can be detachably installed in the mounting frame 71, and the electric energy meter 4, the conversion switch 5 and the voltmeter 6 can be detachably installed on the lower surface of the display board 72.

[0031] Specifically, in this embodiment, the electric energy meter 4 uses a three-phase three-wire electronic multifunctional high-voltage electric energy meter of model DSSD331, with a frequency of 50HZ and an accurate registration of 0.5S level. In this embodiment, the voltmeter 6 uses an indoor installation analog indicating AC voltmeter of model 6L2-V450V. In this embodiment, the voltage transformer 11 uses a voltage transformer of model RZL10-10.

[0032] The simulation metering cabinet provided by the present invention is provided with an installation frame 71 to fix the voltage transformer 11, the current transformer 12 and the junction box 3. The frame structure of the installation frame 71 is beneficial to the heat dissipation of the voltage transformer 11, the current transformer 12 and the junction box 3 on the one hand, and is convenient for technicians to better observe the various components of the simulation metering cabinet on the other hand. At the same time, the frame structure is light in weight, which is conducive to the movement of the simulation metering cabinet. The electric energy meter 4, the conversion switch 5 and the voltmeter 6 are installed on the display board 72, which is convenient for technicians to view various detection data of the simulation metering cabinet. One side of the display board 72 is rotatably connected to the installation frame 71, which is convenient for the display board 72 to stand up for display during training, and to cover the upper end of the installation frame 71 when it is no longer needed for display after the training, so as to facilitate storage.

[0033] The high-supply and high-meter simulation meter cabinet provided by the present invention truly restores the circuit part of the high-supply and high-meter meter cabinet, giving technical personnel an opportunity to actually contact the high-voltage metering device, providing technical personnel with more practice opportunities and cultivating their hands-on ability.

[0034] Preferably, the housing of the voltage transformer 11, the housing of the current transformer 21 and the housing of the junction box 3 are all made of insulating material.

[0035] The outer shells of the voltage transformer 11, the current transformer 21 and the junction box 3 are set to be insulated. On the one hand, it enhances the safety of the high-supply and high-meter simulation meter cabinet as a training tool and prevents accidents caused by improper operation of trainees during training; on the other hand, the insulating shell is light in weight, which is conducive to reducing the weight of the high-supply and high-meter simulation meter cabinet, facilitating its movement and facilitating the smooth progress of the training process; in addition, the insulating shell has low cost, which reduces the cost of the high-supply and high-meter simulation meter cabinet as a training tool and avoids unnecessary waste.

[0036] Specifically, the voltage transformer 11 uses a voltage transformer of model RZL10-10. In order to reduce weight, its shell is made of solid wood, but the primary winding and the secondary winding are not changed for wiring.

[0037] Preferably, Figure 2 As shown, universal wheels 711 are installed around the bottom of the installation frame 71.

[0038] Universal wheels 711 are provided to facilitate the movement and display of the simulated metering cabinet.

[0039] Preferably, Figure 2 As shown, the high-supply and high-meter simulation metering cabinet also includes a retractable hydraulic rod 721, and both ends of the hydraulic rod 721 are respectively connected to the display board 72 and the installation frame 71.

[0040] The hydraulic rod 721 can realize reciprocating motion, and can realize stable support of the display board 72 on the mounting frame 71, so that the technicians can observe the various components on the display board 72. Moreover, the hydraulic rod 721 moves smoothly, which ensures the smooth movement and display of the various components on the display board 72. During the process of opening and closing the display board 72, the various components installed on the display board 72 will not be subjected to excessive vibration and bumps, thus ensuring the stable operation of the simulation metering cabinet.

[0041] Preferably, Figure 1-2 As shown, the high-voltage supply and high-voltage meter simulation meter cabinet also includes a frequency meter 9. The secondary winding of the voltage transformer 11 and the secondary winding of the current transformer 21 are electrically connected to the frequency meter 9 through the junction box 3 respectively. The frequency meter 9 is detachably mounted on the lower surface of the display board 72.

[0042] Frequency table 9 is added to measure the frequency of the high-voltage power supply circuit 10. On the one hand, it can better monitor the status of the high-voltage power supply circuit 10. On the other hand, it can provide more data support for training to help technicians better understand and learn relevant knowledge.

[0043] Preferably, Figure 1-2As shown, the high-voltage power supply and high-meter simulation metering cabinet also includes a backup voltage transformer 12 and a backup current transformer 22. The primary winding of the backup voltage transformer 12 and the primary winding of the backup current transformer 22 are electrically connected to the external high-voltage power supply circuit, respectively. The secondary winding of the backup voltage transformer 12 and the secondary winding of the backup current transformer 22 are electrically connected to the junction box 3, respectively. The backup voltage transformer 12 and the backup current transformer 22 can be detachably installed in the installation frame 71.

[0044] A backup current transformer 22 and a backup voltage transformer 12 are provided to prevent the current transformer 21 and the voltage transformer 11 from being damaged, thereby preventing an accidental power failure of the external high-voltage power supply circuit 10 and an accidental interruption of the training process. When the current transformer 21 or the voltage transformer 11 is damaged, the normal power supply of the high-voltage power supply circuit 10 and the training process can be quickly restored by connecting the backup current transformer 22 or the backup voltage transformer 12 to the circuit through the junction box 3.

[0045] Preferably, Figure 1-2 As shown, the high-voltage power supply and high-voltage meter simulation metering cabinet also includes a fuse 8. The primary winding of the voltage transformer 11 and the primary winding of the backup voltage transformer 12 are electrically connected to the external high-voltage power supply circuit 10 through the fuse 8 respectively. The fuse 8 is installed on the lower surface of the display board 72.

[0046] The fuse 8 is added to protect the normal operation of the voltage transformer 11 , the backup voltage transformer 12 and the external high-voltage power supply circuit 10 , and to prevent excessive current from burning out the voltage transformer 11 or the backup voltage transformer 12 and affecting the normal power supply of the external high-voltage power supply circuit 10 .

[0047] Preferably, Figure 2 As shown, the base 81 of the fuse 8 is a wooden board or a plastic board.

[0048] The base of the existing fuse 8 is usually made of ceramic material, which is heavy and not suitable for the simulation meter cabinet as a training tool. Therefore, this embodiment uses a wooden board or a plastic board as the base of the fuse 8. On the one hand, it ensures the safety of the fuse 8, and on the other hand, it reduces the weight of the simulation meter cabinet, making it easier to move and display during training.

[0049] Specifically, the fuse 8 in this embodiment is a high-voltage and high-breaking capacity fuse of model XRNP-10KV / 0.5A, and its base 81 is made of wood.

[0050] Specifically, all the electrical connections in the present invention are realized through cables (not shown in the figure), and the cables are bundled and fixed on the installation frame 71.

[0051] The cables are bundled and fixed on the installation frame 71 to avoid the cables being in disarray and affecting the use, movement and display effect of the high-supply and high-meter simulation metering cabinet.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high supply and high meter simulation metering cabinet, characterized in that: The invention comprises a voltage transformer (11), a current transformer (21), a junction box (3), an electric energy meter (4), a conversion switch (5), a voltmeter (6), a mounting frame (71) and a display board (72); the primary winding of the voltage transformer (11) and the primary winding of the current transformer (21) are respectively electrically connected to an external high-voltage power supply circuit (10); the secondary winding of the voltage transformer (11) and the secondary winding of the current transformer (21) are respectively electrically connected to the electric energy meter (4) via the junction box (3); and the junction box (3) is electrically connected to the voltmeter (6) via the conversion switch (5); The display board (72) is covered on the upper end of the installation frame (71), and one side of the display board (72) is rotatably connected to one side of the installation frame (71) and can open or close the upper end of the installation frame (71); the voltage transformer (11), the current transformer (21) and the junction box (3) are all detachably installed in the installation frame (71); and the electric energy meter (4), the conversion switch (5) and the voltmeter (6) are all detachably installed on the lower surface of the display board (72); It also includes a retractable hydraulic rod (721), the two ends of which are respectively connected to the display board (72) and the mounting frame (71); It also includes a frequency meter (9), wherein the secondary winding of the voltage transformer (11) and the secondary winding of the current transformer (21) are electrically connected to the frequency meter (9) through the junction box (3), respectively, and the frequency meter (9) is detachably mounted on the lower surface of the display board (72); It also includes a standby voltage transformer (12) and a standby current transformer (22), wherein the primary winding of the standby voltage transformer (12) and the primary winding of the standby current transformer (22) are respectively electrically connected to an external high-voltage power supply circuit, the secondary winding of the standby voltage transformer (12) and the secondary winding of the standby current transformer (22) are respectively electrically connected to the junction box (3), and the standby voltage transformer (12) and the standby current transformer (22) are both detachably mounted in the mounting frame (71); It also includes a fuse (8), through which the primary winding of the voltage transformer (11) and the primary winding of the standby voltage transformer (12) are electrically connected to an external high-voltage power supply circuit (10), respectively, and the fuse (8) is mounted on the lower surface of the display board (72); The base (81) of the fuse (8) is a wooden board or a plastic board; The fuse (8) model is a high-voltage and high-breaking capacity fuse of XRNP-10KV / 0.5A, and its base (81) is made of wood.

2. According to the high-supply and high-meter simulation metering cabinet of claim 1, it is characterized in that: The outer shell of the voltage transformer (11), the outer shell of the current transformer (21) and the outer shell of the junction box (3) are all made of insulating material.

3. According to the high supply and high meter simulation metering cabinet of claim 1, it is characterized in that: Universal wheels (711) are installed around the bottom of the installation frame (71).

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