Electric energy monitoring device for traction substation

Abstract

The utility model discloses a traction substation electric energy monitoring device, which comprises a shell, mounting ports, mounting plates, pop-up mechanisms and a clamping seat, the shell is a hollow cavity, the outer wall of the shell is provided with a plurality of mounting ports, the mounting plates are arranged in the mounting ports, the inner wall of the shell is provided with a plurality of groups of pop-up mechanisms, and the pop-up mechanisms are connected with the clamping seat. A plurality of groups of pop-up mechanisms are arranged in the mounting opening, the plurality of groups of pop-up mechanisms respectively correspond to the positions of the plurality of mounting plates, the pop-up mechanisms can enable the mounting plates to be automatically popped up from the mounting opening, the number of each group of pop-up mechanisms is four, and the four pop-up mechanisms respectively correspond to the positions of the four corners of the mounting plates. According to the electric energy monitoring device for the traction substation, in actual use, when the circuit board needs to be overhauled, the circuit board can be quickly separated from the limit and automatically popped up, convenience and rapidness are achieved, and operation of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy detection equipment, in particular to an electric energy monitoring device for a traction substation. Background Technique

[0002] A traction substation is a key component in a rail transit system, responsible for providing stable power supply for electrified railways, subways, etc. In order to ensure the stable operation of the power system and improve the utilization efficiency of electric energy, it is particularly important to conduct on-line monitoring and analysis of the electric energy of the traction substation.

[0003] For common on-line electric energy monitoring equipment, the overall hardware structure is composed of a power management unit, a signal acquisition and conditioning unit, a data processing unit and a data analysis unit, which are respectively designed on several circuit boards. In order to manage and protect these circuit boards more centrally and effectively, an overall encapsulation will be carried out. However, most of these integrally encapsulated circuit boards are installed by means of screw fixation, and the installation and disassembly are relatively difficult. It is very inconvenient to carry out maintenance and repair work, which brings inconvenience to use. Based on the above problems, an electric energy monitoring device for a traction substation is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide an electric energy monitoring device for a traction substation to solve the problem that it is very inconvenient to disassemble, repair and maintain the circuit board as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an electric energy monitoring device for a traction substation, including: a housing, mounting ports, mounting plates, a pop-up mechanism and card seats. The housing is a hollow cavity, and a plurality of mounting ports are opened on the outer wall of the housing. Mounting plates are placed in the mounting ports. A plurality of groups of pop-up mechanisms are arranged on the inner wall of the housing, and the plurality of groups of pop-up mechanisms respectively correspond to the positions of the plurality of mounting plates. The pop-up mechanism can automatically pop the mounting plate out of the mounting port. Among them, the number of each group of pop-up mechanisms is four, which respectively correspond to the four corners of the mounting plate. The number of card seats is several, which are respectively installed at the four corners of the mounting plate and respectively correspond to the positions of the pop-up mechanisms. The card seat is open on the side opposite to the pop-up mechanism.

[0006] Preferably, the pop-up mechanism includes: fixed blocks, sliding rods, moving seats, top blocks and first springs. The number of fixed blocks is two, which are symmetrically installed on the inner wall of the housing respectively. A sliding rod is installed between the two fixed blocks. A moving seat is slidably sleeved on the sliding rod. A first spring is also sleeved on the moving seat. The two ends of the first spring are respectively fixedly connected to one of the fixed blocks and the moving seat. A top block is arranged at the top of the side of the moving seat away from the first spring, and the top block is slidably inserted into the inner cavity of the card seat.

[0007] Preferably, the ejection mechanism further includes a limit block and a chute. The limit block is fixedly installed on the inner wall of the housing. A chute is formed at the bottom end of the moving seat, and the limit block is slidably connected to the inner cavity of the chute.

[0008] Preferably, a plurality of installation chambers are formed in the inner cavity of the housing. Sockets are formed on the installation plate. The positions of the plurality of installation chambers respectively correspond to the sockets on the plurality of installation ports. A locking mechanism is assembled in the inner cavity of the installation chamber, and the locking mechanism can limit the installation plate.

[0009] Preferably, the locking mechanism includes: a plug, a limit rod, a positioning rod, a moving plate, a limit groove, a second spring, a connecting plate and a slideway. The plug is movably arranged in the inner cavity of the installation chamber. A limit rod is installed at the top end of the plug. One end of the plug extends into the installation port and is inserted into the inner cavity of the socket. One end of the positioning rod is fixedly installed in the inner cavity of the installation chamber, and the other end of the plug is slidably sleeved on the other end of the positioning rod. A slideway is installed on the inner wall of the installation chamber. The moving plate is slidably embedded in the inner cavity of the slideway. A limit groove is formed on the moving plate. The limit rod is slidably embedded in the inner cavity of the limit groove. One end of a button is installed on the moving plate, and the other end of the button slidably penetrates and extends out of the outer wall of the housing. A connecting plate is installed on the side of the moving plate away from the button, and a second spring is installed between the connecting plate and the inner wall of the installation chamber.

[0010] Preferably, the end of the plug inserted into the inner cavity of the socket is provided with an inclined surface.

[0011] Preferably, the limit groove is inclined.

[0012] Preferably, heat dissipation openings are provided on the outer wall of the housing.

[0013] Preferably, a circuit board is installed on the installation plate, and the wiring terminal of the circuit board penetrates the outer wall of the installation plate.

[0014] Preferably, it further includes: a sensor and a processor. The sensor and the processor are respectively arranged on the circuit board. The sensor is used for signal acquisition and conditioning, and the processor is used for signal data analysis.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: For this traction substation power monitoring device, by pressing the button, the moving plate moves backward, thereby driving the insertion block to retract into the inner cavity of the installation chamber. When the insertion block leaves the inner cavity of the socket, the installation plate loses its limit. Under the action of the elastic force of the first spring, the moving seat can move forward, thereby pushing the installation plate forward. When the top block disengages from the card seat, the installation plate can move freely. In actual use, when it is necessary to repair the circuit board, it can quickly break away from the limit and pop out automatically, which is convenient and fast and facilitates the operation of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic structural diagram of the traction substation power monitoring device provided by the present utility model.

[0017] Figure 2 FIG. is a schematic structural diagram of the socket of the traction substation power monitoring device provided by the present utility model.

[0018] Figure 3 FIG. is a schematic structural diagram of the card seat of the traction substation power monitoring device provided by the present utility model.

[0019] Figure 4 FIG. is a schematic structural diagram of the ejection mechanism of the traction substation power monitoring device provided by the present utility model.

[0020] Figure 5 FIG. is a schematic structural diagram of the installation chamber of the traction substation power monitoring device provided by the present utility model.

[0021] Figure 6 FIG. is a schematic structural diagram of the locking mechanism of the traction substation power monitoring device provided by the present utility model.

[0022] Figure 7 FIG. is a working flow chart of each unit of the traction substation power monitoring device provided by the present utility model.

[0023] In the figure: 1. housing, 2. installation opening, 3. installation plate, 4. circuit board, 5. heat dissipation opening, 6. ejection mechanism, 61. fixed block, 62. sliding rod, 63. moving seat, 63a. top block, 64. first spring, 65. limit block, 66. chute, 7. card seat, 8. socket, 9. button, 10. locking mechanism, 101. insertion block, 102. limit rod, 103. positioning rod, 104. moving plate, 105. limit groove, 106. second spring, 107. connecting plate, 108. slideway, 11. installation chamber, 12. sensor, 13. processor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, 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 utility model.

[0025] Embodiment 1:

[0026] Please refer to Figures 1-6 , the technical solution of the traction substation power monitoring device provided by the present utility model is an on-line monitoring and analysis device for the power energy of the traction substation. The specific solution is as follows. The traction substation power monitoring device includes: a housing 1, a mounting port 2, a mounting plate 3, a pop-up mechanism 6, and a card seat 7. The housing 1 is a hollow cavity made of a metal material, and aluminum alloy or stainless steel electroplated with copper or aluminum can be selected. It has a certain anti-electromagnetic interference ability. A plurality of mounting ports 2 are opened on the outer wall of the housing 1. A mounting plate 3 is placed in the mounting port 2. The mounting plate 3 is adapted to the inner cavity of the mounting port 2. When the mounting plate 3 is placed in the inner cavity of the mounting port 2, its position is determined. A circuit board 4 is installed on the mounting plate 3, and the wiring terminal of the circuit board 4 penetrates through the outer wall of the mounting plate 3. When the mounting plate 3 is fixedly installed with the mounting port 2, the main body of the circuit board 4 is protected by the housing 1 and does not affect the wiring of the circuit board 4. A heat dissipation port 5 is provided on the outer wall of the housing 1, and the heat generated during the operation of the device can be quickly transferred to the outside. A plurality of groups of pop-up mechanisms 6 are provided on the inner wall of the housing 1, and the plurality of groups of pop-up mechanisms 6 correspond to the positions of the plurality of mounting plates 3 respectively. The pop-up mechanism 6 can automatically pop up the mounting plate 3 from the mounting port 2. Among them, the number of each group of pop-up mechanisms 6 is four, which respectively correspond to the four corner positions of the mounting plate 3. The number of card seats 7 is several, which are respectively installed at the four corners of the mounting plate 3 and respectively correspond to the positions of the pop-up mechanisms 6. The card seat 7 is provided with an opening on the side opposite to the pop-up mechanism 6. The pop-up mechanism 6 and the card seat 7 can be used to position the mounting plate 3.

[0027] The ejection mechanism 6 includes: a fixed block 61, a slide bar 62, a moving seat 63, a top block 63a, a first spring 64, a limit block 65, and a chute 66. The number of fixed blocks 61 is two, which are symmetrically installed on the inner wall of the housing 1 respectively. A slide bar 62 is installed between the two fixed blocks 61. A moving seat 63 is slidably sleeved on the slide bar 62. A first spring 64 is also sleeved on the moving seat 63. The two ends of the first spring 64 are fixedly connected to one of the fixed blocks 61 and the moving seat 63 respectively. The first spring 64 is a helical spring, which generates elastic deformation when stretched or compressed and returns to its initial state after the external force is removed. When the moving seat 63 moves under force, it will compress the first spring 64. After the external force is removed, the elastic force of the first spring 64 can be used to reset the moving seat 63. A top block 63a is provided at the top of the side of the moving seat 63 away from the first spring 64, and the top block 63a is slidably inserted into the inner cavity of the card seat 7. When the mounting plate 3 enters the inner cavity of the mounting opening 2 and is limited, the mutual docking of the top block 63a and the card seat 7 can position the mounting plate 3. At this time, the first spring 64 is in a compressed state. When the limiting force on the mounting plate 3 is removed, the elastic force of the first spring 64 can be used to move the moving seat 63 forward to eject the mounting plate 3. The limit block 65 is fixedly installed on the inner wall of the housing 1. A chute 66 is opened at the bottom end of the moving seat 63, and the limit block 65 is slidably connected to the inner cavity of the chute 66. By limiting each other, the moving seat 63 can be prevented from rotating on its own axis.

[0028] A number of mounting chambers 11 are opened in the inner cavity of the housing 1. Sockets 8 are opened on the mounting plate 3. The positions of the a number of mounting chambers 11 correspond to the sockets 8 on a number of mounting openings 2 respectively. A locking mechanism 10 is assembled in the inner cavity of the mounting chamber 11. The locking mechanism 10 can limit the mounting plate 3.

[0029] The locking mechanism 10 includes: a plug block 101, a limiting rod 102, a positioning rod 103, a moving plate 104, a limiting groove 105, a second spring 106, a connecting plate 107 and a slideway 108. The plug block 101 is movably arranged in the inner cavity of the installation chamber 11. A limiting rod 102 is installed at the top end of the plug block 101. One end of the plug block 101 extends into the installation port 2 and is inserted into the inner cavity of the socket 8. The end of the plug block 101 inserted into the inner cavity of the socket 8 is arranged as an inclined surface. When the installation plate 3 enters the inner cavity of the installation port 2 from the outside, due to the limitation of the outer wall of the installation plate 3, the plug block 101 can be forced to move towards the inner cavity of the installation chamber 11. One end of a positioning rod 103 is fixedly installed in the inner cavity of the installation chamber 11, and the other end of the plug block 101 is slidably sleeved on the other end of the positioning rod 103. Due to the limitation of the positioning rod 103, it is ensured that the plug block 101 can only move axially along the positioning rod 103 to avoid its shaking. The inner wall of the installation chamber 11 is provided with a slideway 108. A moving plate 104 is slidably embedded in the inner cavity of the slideway 108. The moving plate 104 is limited by the slideway 108 and can only slide in the inner cavity of the slideway 108. A limiting groove 105 is formed on the moving plate 104. The limiting groove 105 is inclined. The limiting rod 102 is slidably embedded in the inner cavity of the limiting groove 105. When the moving plate 104 moves backward, due to the limitation of the limiting groove 105, the limiting rod 102 will drive the plug block 101 to move towards the inner cavity of the installation chamber 11. One end of a button 9 is installed on the moving plate 104, and the other end of the button 9 slidably penetrates and extends out of the outer wall of the housing 1. Pressing the button 9 will cause the moving plate 104 to move synchronously. A connecting plate 107 is installed on the side of the moving plate 104 away from the button 9. A second spring 106 is installed between the connecting plate 107 and the inner wall of the installation chamber 11. When the moving plate 104 is forced to move backward, the second spring 106 will be compressed. After removing the external force, the elastic force of the second spring 106 can drive the moving plate 104 to reset.

[0030] The detailed connection means are well-known techniques in the art. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of the electrical control will be made.

[0031] In use, press the button 9 to push the moving plate 104 backward, while compressing the second spring 106. At this time, with the cooperation of the limiting groove 105 and the limiting rod 102, the insertion block 101 can be inserted into the inner cavity of the installation chamber 11 in the direction of one end of the socket 8. When the insertion block 101 leaves the inner cavity of the socket 8, the mounting plate 3 is released from the limited state. At this time, the elastic force of the first spring 64 makes the moving seat 63 pop forward, and the mounting plate 3 can be popped out synchronously. At this time, the mounting plate 3 can be freely disassembled and repaired. Then, the mounting plate 3 is reset, so that the four card seats 7 are respectively sleeved with the four top blocks 63a. At this time, the positioning of the mounting plate 3 is accurate. Continuing to push the mounting plate 3 makes the moving seat 63 move backward synchronously and compress the first spring 64. When the outer wall of the mounting plate 3 contacts the outer wall of the insertion block 101 and continues to move backward, it can drive the insertion block 101 in the direction of the inner cavity of the installation chamber 11. At this time, the moving plate 104 moves backward and compresses the second spring 106. When the insertion block 101 corresponds to the inner cavity of the socket 8, the elastic force of the second spring 106 can make the moving plate 104 reset forward. At this time, it can drive the insertion block 101 to reset. When the insertion block 101 is inserted into the inner cavity of the socket 8, the limiting of the mounting plate 3 can be realized, and its installation is completed. In actual use, the mounting plate 3 can be quickly disassembled, and the mounting plate 3 can pop out automatically, which is convenient for maintenance work. At the same time, the re-positioning installation and fixation of the mounting plate 3 can be realized, which is convenient and fast.

[0032] Embodiment 2:

[0033] Please refer to Figure 7 , the present utility model provides a technical solution for an electric energy monitoring device in a traction substation. The difference from Embodiment 1 is that: four installation ports 2 are opened on the outer wall of the housing 1, a mounting plate 3 is placed in the installation port 2, a circuit board 4 is installed on the mounting plate 3, and the wiring terminal of the circuit board 4 penetrates through the outer wall of the mounting plate 3. It also includes: a sensor 12 and a processor 13. The sensor 12 and the processor 13 are respectively arranged on the circuit board 4. The sensor 12 is a signal acquisition and conditioning unit for signal acquisition and conditioning. The processor 13 is a data processing unit for signal data processing. In addition, it also includes a power management unit and a data analysis unit. Among them, the power management unit, the signal acquisition and conditioning unit, the data processing unit, and the data analysis unit are respectively arranged on the four circuit boards 4. The external circuit is connected to the wiring terminals of each circuit board 4 passing through the mounting plate 3. After power-on, the on-line monitoring and analysis of electric energy can be carried out.

[0034] As Figure 7As shown in the figure, the power management unit provides power of different levels for the signal acquisition and conditioning unit, the data processing unit, and the data analysis unit, realizing independent and stable power supply for each unit; the signal acquisition and conditioning unit conditions the externally input signals, converts the externally input signals into measurable signals, and transmits them to the data processing unit; the data processing unit preprocesses, calculates, and analyzes the signals obtained by the signal acquisition and conditioning unit, converts them into low-volume data with characteristic parameters, and transmits them to the data analysis unit; after the data analysis unit obtains the data transmitted by the data processing unit, it can realize functions such as data storage, transmission, and early warning under specific conditions. Through the processing of the above steps, it is possible to perform on-line monitoring and analysis processing of power data, obtain corresponding data, and thus perform corresponding processing work based on these data.

[0035] Furthermore, the power management unit is mainly composed of an AC-DC conversion module, an analog power supply module, and a digital power supply module. According to the requirements of each functional unit, it transforms the power supply voltage to enable the normal operation of each unit. Among them, the URB1D_LMD-20WR3 is selected as the power supply input conversion power for the AC-DC conversion module. The URB1D_LMD-20WR3 has a super-wide voltage input of 40 - 160VDC, an isolation voltage of 2250VDC, meets the reinforced insulation level, and has functions such as input under-voltage protection, output short-circuit, over-current, and over-voltage protection; the VRB2424YMD-10WR3 module is selected for the analog power supply module, which has the characteristics of a wide input voltage range and an 88% conversion efficiency; the VRB2412YMD-20WR3 is selected as the isolated regulated conversion power supply for the digital power supply module. The VRB2412YMD-20WR3 is a wide-input isolated regulated DC-DC converter that can achieve a high conversion efficiency of 91% and is widely used in fields such as industrial control and power. Through this unit, it is possible to stably supply power to the signal acquisition and conditioning unit, the data processing unit, and the data analysis unit.

[0036] When powered on and working, the signal acquisition and conditioning unit first collects and processes power data. The signal acquisition and conditioning unit selects the closed-loop Hall voltage sensor of the YuBo module CHV-25P. After the voltage is collected, it is first transformed through two 22kΩ high-precision sampling resistors to convert the 100V voltage signal into a 2.27mA current signal, and then converted into a 5.68mA current signal output and converted into a voltage through the CHV-25P. The voltage first passes through a differential circuit to eliminate common-mode interference, and then passes through an isolation op-amp to ensure that the interference will not be introduced into the control side. After being amplified by a differential amplifier circuit to obtain data, it can be transmitted to the data processing unit.

[0037] The data processing unit needs to select the XC6SLX150-3FGG484C chip, which has rich programmable logic resources and a large amount of storage resources and can meet the computing requirements. To meet the analog-to-digital conversion, four AD7606 modules are selected to complete the ADC sampling. The AD7606 module is a 16-bit, 8-channel synchronous sampling, bipolar-input analog-to-digital converter. It has built-in analog input clamping protection, second-order anti-aliasing filter, track-and-hold amplifier, 16-bit charge redistribution successive approximation analog-to-digital converter, flexible digital filter, 2.5V reference power supply, and high-speed serial and parallel interfaces. The power supply of the AD7606 converter is 5V, the range of the input channels is adjustable within ±10V and ±5V, and the sampling rate of all channels can reach up to 200KSPS. The AD7606 has 8 bipolar analog signal input channels (V1~V8), and the range of the channels is controlled by the RAGE pin. When the RAGE pin is at a high level, the range is ±10V; when the RAGE pin is at a low level, the range is ±5V. The conversion process of the AD7606 is controlled by two CONVST signals. CONVST_A controls channels V1~V4, and CONVST_B controls channels V5~V8. When the two pins of CONVST_A and CONVST_B are connected together, 8-channel synchronous sampling can be performed, so it is convenient to realize the synchronous high-speed acquisition of multi-channel electrical parameter signals. The Sparatan6 series FPGA is selected for DFT calculation. It has a large number of IP core resources, including multiplier-adder, block memory, FIFO generator (First Input First Output, FIFO), DFT, etc. Therefore, when performing DFT calculation, the DFT IP core can be selected for operation. After completing the calculation of DFT and effective value, the calculated data can be transmitted to the data analysis unit for processing.

[0038] The data analysis unit selects the STM32H743IIT6 chip in the STM32 series. This product is based on the ARM Cortex M7 core, has rich peripheral resources and a high operating frequency, up to 480Mhz, and its data processing accuracy is also very high. This chip can not only meet the functional requirements but also has some remaining resources for convenient subsequent functional expansion. The final data can be obtained by using the processing of this unit. In addition, ARM has reserved a large number of external interfaces, leaving sufficient space for subsequent expansion of other modules.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Electric energy monitoring device for traction substation, characterized in that, Including: A housing (1), mounting openings (2), a mounting plate (3), a pop-up mechanism (6) and a card seat (7). The housing (1) is a hollow cavity. A plurality of mounting openings (2) are formed in the outer wall of the housing (1). The mounting plate (3) is placed in the mounting openings (2). A plurality of groups of pop-up mechanisms (6) are arranged on the inner wall of the housing (1), and the plurality of groups of pop-up mechanisms (6) correspond to the positions of the plurality of mounting plates (3) respectively. The pop-up mechanism (6) can automatically pop up the mounting plate (3) from the mounting opening (2). Among them, the number of each group of pop-up mechanisms (6) is four, corresponding to the four corners of the mounting plate (3) respectively. The number of the card seats (7) is a plurality, which are respectively installed at the four corners of the mounting plate (3) and correspond to the positions of the pop-up mechanisms (6) respectively. The card seat (7) is provided with an opening on the side opposite to the pop-up mechanism (6).

2. The traction substation power monitoring device according to claim 1, characterized in that: The pop-up mechanism (6) includes: a fixed block (61), a sliding rod (62), a moving seat (63), a top block (63a) and a first spring (64). The number of the fixed blocks (61) is two, which are symmetrically installed on the inner wall of the housing (1) respectively. A sliding rod (62) is installed between the two fixed blocks (61). A moving seat (63) is slidably sleeved on the sliding rod (62). A first spring (64) is also sleeved on the moving seat (63). The two ends of the first spring (64) are fixedly connected to one of the fixed blocks (61) and the moving seat (63) respectively. A top block (63a) is arranged at the top of the side of the moving seat (63) away from the first spring (64), and the top block (63a) is slidably inserted into the inner cavity of the card seat (7).

3. The traction substation power monitoring device according to claim 2, wherein: The pop-up mechanism (6) further includes a limit block (65) and a chute (66). The limit block (65) is fixedly installed on the inner wall of the housing (1). A chute (66) is formed at the bottom end of the moving seat (63), and the limit block (65) is slidably connected to the inner cavity of the chute (66).

4. The traction substation power monitoring device according to claim 3, characterized in that: A plurality of mounting chambers (11) are formed in the inner cavity of the housing (1). Sockets (8) are formed on the mounting plate (3). The plurality of mounting chambers (11) correspond to the sockets (8) on the plurality of mounting openings (2) respectively. A locking mechanism (10) is assembled in the inner cavity of the mounting chamber (11), and the locking mechanism (10) can limit the mounting plate (3).

5. The traction substation power monitoring device according to claim 4, characterized in that: The locking mechanism (10) includes: a plug block (101), a limiting rod (102), a positioning rod (103), a moving plate (104), a limiting groove (105), a second spring (106), a connecting plate (107) and a slideway (108). The plug block (101) is movably arranged in the inner cavity of the installation chamber (11). A limiting rod (102) is installed at the top end of the plug block (101). One end of the plug block (101) extends into the installation opening (2) and is inserted into the inner cavity of the socket (8). One end of a positioning rod (103) is fixedly installed in the inner cavity of the installation chamber (11), and the other end of the plug block (101) is slidably sleeved on the other end of the positioning rod (103). A slideway (108) is installed on the inner wall of the installation chamber (11). A moving plate (104) is slidably embedded in the inner cavity of the slideway (108). A limiting groove (105) is formed in the moving plate (104). The limiting rod (102) is slidably embedded in the inner cavity of the limiting groove (105). One end of a button (9) is installed on the moving plate (104), and the other end of the button (9) slidably penetrates and extends out of the outer wall of the housing (1). A connecting plate (107) is installed on the side of the moving plate (104) away from the button (9). A second spring (106) is installed between the connecting plate (107) and the inner wall of the installation chamber (11).

6. The traction substation power monitoring device according to claim 5, characterized in that: One end of the plug block (101) inserted into the inner cavity of the socket (8) is provided with an inclined surface.

7. The traction substation power monitoring device according to claim 6, characterized in that: The limiting groove (105) is inclinedly arranged.

8. The traction substation power monitoring device according to any one of claims 1-7, characterized in that: The outer wall of the housing (1) is provided with heat dissipation openings (5).

9. The traction substation power monitoring device according to any one of claims 1-7, characterized in that: A circuit board (4) is installed on the mounting plate (3), and the wiring terminals of the circuit board (4) penetrate the outer wall of the mounting plate (3).

10. The traction substation power monitoring device according to claim 9, characterized in that: It further includes: a sensor (12) and a processor (13). The sensor (12) and the processor (13) are respectively arranged on the circuit board (4). The sensor (12) is used for signal acquisition and conditioning, and the processor (13) is used for signal data analysis.

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