Vibrating table for converter transformer oil paper alternating current and direct current voltage composite test

Abstract

The invention relates to the technical field of converter transformers, and particularly discloses a converter transformer oil paper alternating current and direct current voltage composite test vibration table which comprises a supporting box with an open top end, and the top end of the supporting box is connected with a bearing plate through an elastic supporting assembly; the cylinder base is installed on the bottom wall of the supporting box, a stand is arranged at the bottom end of the bearing plate, an electromagnetic driving structure is arranged between the cylinder base and the stand, an air spring is arranged on the bottom wall of the cylinder base, and the top end of the air spring is connected with the bottom end of the stand; the adjustable wire clamp assembly is mounted at the top end of the bearing plate; the cooling assembly is mounted in the supporting box; and the limiting assembly is arranged in the cylinder seat. According to the invention, high-reliability fixation of the high-voltage lead under long-term vibration is realized, test continuity and data effectiveness are guaranteed, and a cooling and purifying integrated air cooling device is provided, so that a synergistic effect of efficient heat dissipation and improvement of internal insulation strength is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of converter transformers, in particular to a vibration table for oil-paper AC-DC voltage composite test of a converter transformer. BACKGROUND

[0002] With the continuous rise in global power demand, the scale and complexity of power systems are also expanding, especially the demand for long-distance and large-capacity power transmission is increasingly prominent. In order to solve this challenge, high-voltage direct current transmission technology, as an efficient and reliable power transmission method, has been widely used in power systems. Converter transformers, as the core equipment connecting AC and DC systems, bear the key functions of power conversion, electrical isolation and voltage regulation. However, with the rapid development and wide application of high-voltage direct current transmission technology, the operating environment of converter transformers is becoming increasingly complex, especially when operating under AC-DC hybrid voltage conditions, the oil-paper insulation system faces higher electrical stress and more complex thermal stress. This complex operating environment puts more stringent requirements on the performance of the oil-paper insulation system, especially during long-term operation, the aging and performance degradation of the oil-paper insulation gradually become the key factors affecting the reliability and life of the equipment. Therefore, it is of great significance to study the performance evolution of the oil-paper insulation system under complex conditions for improving the operating reliability of the converter transformer.

[0003] Currently, when conducting aging tests on oil-paper insulation, the existing vibration table is difficult to continuously and stably operate for more than several hundred hours under the complex environment of applying tens of thousands of volts of AC-DC composite voltage, which easily interrupts the test and affects the efficiency, mainly having the following problems:

[0004] 1. The high-voltage lead is prone to wear, breakdown, and even pull-out due to the lack of auxiliary fixing structure under long-term continuous vibration;

[0005] 2. The vibration table is prone to overheating shutdown due to insufficient heat dissipation during long-term full-load test. SUMMARY

[0006] To solve the above problems in the prior art, the present application provides a vibration table for oil-paper AC-DC voltage composite test of a converter transformer, which can solve the problems raised in the background art.

[0007] The object of the present application can be achieved by the following technical solutions:

[0008] A vibration table for oil-paper AC-DC voltage composite test of a converter transformer, comprising:

[0009] A support box with an open top end, the support box top end is connected with a bearing plate through an elastic support assembly;

[0010] A cylinder seat is installed on the bottom wall of the support box, and the bottom end of the bearing plate is provided with a column, and an electromagnetic drive structure is arranged between the cylinder seat and the column, and the bottom wall of the cylinder seat is provided with an air spring, and the top end of the air spring is connected with the bottom end of the column;

[0011] An adjustable wire clamp assembly is installed on the top end of the bearing plate;

[0012] A cooling assembly is installed in the support box;

[0013] A limiting assembly is arranged in the cylinder seat for restraining the radial freedom degree of the column;

[0014] The mechanical vibration is simulated by the electromagnetic drive and the elastic support system, and the stable and continuous cooperative aging test is realized under the application of alternating and direct current high voltage environment by combining the adjustable wire clamp and the air cooling and electric component.

[0015] Preferably, the elastic support assembly includes support seats and a first spring, two support seats are respectively installed on the top end of the support box and the bottom end of the bearing plate, and the first spring is installed between the two support seats.

[0016] Preferably, the electromagnetic drive structure includes a ring pipe, the inner wall of the cylinder seat is provided with an integral ring pipe, the cross section of the ring pipe is arranged in an E shape, the ring pipe slot is provided with an excitation coil, the side wall of the column is provided with a drive coil, and a gap is left between the column and the ring pipe.

[0017] Preferably, a plurality of folded plates arranged in a ring array are arranged in the ring pipe slot, the folded plates are located in the radial direction of the cylinder seat, a plurality of drainage holes are arranged at the top end of the ring pipe, the horizontal plane projection of the plurality of drainage holes and the folded plates is arranged in a circumferential array and a circumferential alternate distribution, the side wall of the column is provided with a pipe sleeve, and the outer diameter of the pipe sleeve is matched with the inner diameter of the ring pipe.

[0018] Preferably, the wire clamp assembly includes a plurality of hollow plates, the plurality of hollow plates are installed on the top end of the bearing plate, the plurality of hollow plates are disconnected at the head and tail, and collectively form an open rectangular contour, the hollow plate is detachably installed with an L-shaped block through a fastener, the horizontal section of the L-shaped block is provided with a telescopic rod group at the top end, the top end of the telescopic rod group is provided with a pipe member with an axial opening, the side wall of the pipe member is provided with an opening along the axial direction, and the pipe member is configured to guide the placement of the wire harness, and the pipe member is provided with a damping clamping structure.

[0019] Preferably, the damping clamping structure includes three U-shaped tubes, the U-shaped tubes are installed on the inner wall of the pipe member, two limiting shafts are penetratingly and slidingly installed in the U-shaped tubes, the ends of the limiting shafts away from the U-shaped tubes are fixedly installed with an insulating clamp block, two second springs are arranged between the insulating clamp block and the U-shaped tube, a damping shaft sleeve is arranged on the inner wall of the through hole of the limiting shaft, and the damping shaft sleeve is matched with the limiting shaft.

[0020] Preferably, the cooling assembly comprises a ventilation duct mounted in the support box, a plurality of air inlet pipes are arranged between the top wall of the ventilation duct and the cylinder seat, the plurality of air inlet pipes are arranged in a circumferential array, the top end and the bottom end of the ventilation duct are provided with Peltier effect refrigerators, the inner wall of the ventilation duct is provided with a negative ion generator, and the ventilation duct extends into the pipe opening outside the support box and is provided with a fan.

[0021] Preferably, the limiting assembly comprises a plurality of U-shaped seats mounted at the top end of the ring pipe, sliding blocks are slidingly arranged between the opposite sides of the U-shaped seat, the top end of the sliding block is connected with a pressing block through a fastener, the pressing block is matched with the column, the side wall of the pressing block is provided with a first vertical plate, a second vertical plate is arranged between the opposite sides of the U-shaped seat, and the first vertical plate and the second vertical plate are provided with an elastic limiting piece.

[0022] Preferably, the second vertical plate is provided with a laser displacement sensor on the side close to the first vertical plate, the laser displacement sensor is used for monitoring the displacement of the second vertical plate and uploading to the controller, the controller analyzes and processes data to monitor the wear condition of the pressing block.

[0023] The beneficial effects of the present application are:

[0024] 1. By setting the adjustable wire clamp assembly and the internal damping clamping structure, the axial opening of the side wall of the pipe member realizes the convenient lateral putting and taking of the lead wire, avoids the complexity of the traditional threading method, and the cooperative damping system composed of the three groups of U-shaped pipes, the second spring and the damping shaft sleeve, the second spring provides continuous and flexible radial clamping force, ensures that the lead wire is firmly held while avoiding pressure injury to the insulating layer, and the damping shaft sleeve efficiently dissipates the mechanical energy transmitted by vibration, converts the violent swing of the lead wire into heat energy and suppresses it.

[0025] The beneficial effects that can be obtained are: high reliability of the high-voltage lead wire under long-term vibration is realized, and the continuity of the test and the effectiveness of the data are guaranteed.

[0026] 2. By setting the double Peltier effect refrigerators and the circumferential array air inlet pipes, the Peltier effect refrigerator is used as a solid-state refrigeration device, has the advantages of rapid response, accurate temperature control and no moving parts, can generate stable low-temperature airflow under the driving of the fan, and the low-temperature airflow is uniformly and directionally delivered to the heat generating area of the electromagnetic driving structure through the plurality of air inlet pipes arranged in a circumferential array, and the heat dissipation efficiency is much higher than that of the traditional overall air cooling. At the same time, the negative ion generator integrated in the air duct can continuously release negative ions, and these ions are distributed in the internal space of the equipment along with the cooling airflow, which can effectively neutralize static charges and purify conductive dust in the air, significantly improving the air dielectric strength of the high-voltage area and preventing accidental creeping or breakdown under high electric field;

[0027] The beneficial effect that can be obtained is that the cooling and purification integrated air cooling device is provided, and the synergistic effect of efficient heat dissipation and improved internal insulation strength is realized.

[0028] 3. By setting the limiting assembly, the elastic limiting piece, the first vertical plate, the second vertical plate and the U-shaped seat cooperate to provide elastic support for the sliding block, constrain the radial displacement of the column, ensure the movement accuracy, at the same time, the laser displacement sensor monitors the displacement of the pressing block in real time, the data is fed back to the controller, which is used for evaluating the system stability and warning abnormal wear, realizing predictive maintenance;

[0029] The beneficial effect that can be obtained is that the wear state monitoring function of the limiting assembly is provided, the sudden stop is prevented to a certain extent, and the service life of the core moving part is prolonged through accurate maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to facilitate those skilled in the art to understand, the present application is further described below in combination with the drawings.

[0031] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0032] Figure 2 It is an installation structure diagram of the hollow plate and the L-shaped block in the present application;

[0033] Figure 3 It is an installation structure diagram of the damping clamping structure in the present application;

[0034] Figure 4 It is an installation structure diagram of the damping shaft sleeve in the present application;

[0035] Figure 5 It is an installation structure diagram of the cylinder seat and the column in the present application;

[0036] Figure 6 It is an installation structure diagram of the excitation coil and the driving coil in the present application;

[0037] Figure 7 It is a sectional view of the cylinder seat in the present application;

[0038] Figure 8 It is an installation structure diagram of the cooling assembly in the present application;

[0039] Figure 9 It is an explosion diagram of the Peltier effect refrigerator in the present application;

[0040] Figure 10 It is an explosion diagram of the limiting assembly in the present application;

[0041] Figure 11 It is an installation structure diagram of the column, the driving coil and the pipe sleeve in the present application.

[0042] Explanation of reference signs:

[0043] In the drawing:

[0044] 1, support box; 2, bearing plate; 3, support seat; 4, first spring;

[0045] 11, cylinder seat; 12, column; 13, ring pipe; 14, excitation coil; 15, drive coil; 16, air spring; 17, folding plate; 18, drainage hole; 19, pipe sleeve;

[0046] 21, hollow plate; 22, L-shaped block; 23, telescopic rod group; 24, pipe component; 25, U-shaped pipe; 26, limiting shaft; 27, insulating clamp block; 28, second spring; 29, damping shaft sleeve;

[0047] 31, ventilation duct; 32, air inlet pipe; 33, Peltier effect refrigerator; 34, negative ion generator; 35, fan;

[0048] 41, U-shaped seat; 42, sliding block; 43, pressing block; 44, first vertical plate; 45, elastic limiting piece; 46, second vertical plate; 47, laser displacement sensor. DETAILED DESCRIPTION

[0049] In order to further illustrate the technical means and effects taken by the present application to achieve the predetermined object, the specific embodiments, structures, features and effects according to the present application are described clearly and completely in combination with the drawings and preferred embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0050] In the description of the present application, it should be understood that the orientation or position relationship indicated by "in", "out" and the like is based on the orientation or position described in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, a specific orientation structure and operation, so it cannot be understood as a limitation of the present application.

[0051] Reference Figures 1-10 A vibration table for oil-paper AC-DC voltage composite test of a converter transformer is disclosed in the present application, comprising: a support box 1 with an open top end, a bearing plate 2 connected to the top end of the support box 1 through an elastic support assembly, the elastic support assembly comprising a support seat 3 and a first spring 4, two support seats 3 respectively installed at the top end of the support box 1 and the bottom end of the bearing plate 2, and the first spring 4 installed between the two support seats 3.

[0052] In order to simulate the machine, in this embodiment: the vibration cylinder seat 11 is installed on the bottom wall of the support box 1, the bottom end of the bearing plate 2 is provided with a column 12, an electromagnetic drive structure is arranged between the cylinder seat 11 and the column 12, the electromagnetic drive structure comprises a ring pipe 13, the inner wall of the cylinder seat 11 is provided with an integral ring pipe 13, the cross section of the ring pipe 13 is E-shaped, the ring pipe 13 is provided with an excitation coil 14 in the groove, the side wall of the column 12 is provided with a drive coil 15, a gap is left between the column 12 and the ring pipe 13, the bottom wall of the cylinder seat 11 is provided with an air spring 16, the top end of the air spring 16 is connected with the bottom end of the column 12, a plurality of folded plates 17 arranged in a ring array are arranged in the groove of the ring pipe 13, the folded plates 17 are located in the radial direction of the cylinder seat 11, a plurality of drainage holes 18 are arranged at the top end of the ring pipe 13, the horizontal plane projection of the plurality of drainage holes 18 and the folded plates 17 is circumferentially arrayed and circumferentially alternately distributed, the side wall of the column 12 is provided with a pipe sleeve 19, and the outer diameter of the pipe sleeve 19 is matched with the inner diameter of the ring pipe 13.

[0053] In order to realize continuous aging test, a damping type fixing structure is provided for the high-voltage lead, in this embodiment: an adjustable wire clamp assembly is installed at the top end of the bearing plate 2, the wire clamp assembly comprises a plurality of hollow plates 21, the plurality of hollow plates 21 are installed at the top end of the bearing plate 2, the plurality of hollow plates 21 are disconnected at the head and tail and collectively form a non-closed rectangular contour, the hollow plate 21 is detachably installed with an L-shaped block 22 through a fastener, the top end of the horizontal section of the L-shaped block 22 is provided with a telescopic rod group 23, the top end of the telescopic rod group 23 is provided with a pipe member 24 with an axial opening, the side wall of the pipe member 24 is provided with an opening in the axial direction and is configured to guide the placement of the wire harness, the pipe member 24 is provided with a damping clamping structure inside, the damping clamping structure comprises three U-shaped tubes 25, the U-shaped tubes 25 are installed on the inner wall of the pipe member 24, the U-shaped tubes 25 are penetratively and slidably installed with two limiting shafts 26, the ends of the limiting shafts 26 away from the U-shaped tubes 25 are commonly fixedly installed with insulating clamp blocks 27, two second springs 28 are arranged between the insulating clamp blocks 27 and the U-shaped tubes 25, the through hole inner wall of the limiting shaft 26 is provided with a damping shaft sleeve 29, and the damping shaft sleeve 29 is matched with the limiting shaft 26.

[0054] In order to realize continuous aging test and improve the heat dissipation efficiency, in this embodiment: a cooling assembly is installed in the support box 1, the cooling assembly comprises a ventilation pipe 31, the ventilation pipe 31 is installed in the support box 1, a plurality of air inlet pipes 32 are arranged between the top wall of the ventilation pipe 31 and the cylinder seat 11, the plurality of air inlet pipes 32 are circumferentially arrayed, the top end and the bottom end of the ventilation pipe 31 are provided with a Peltier effect refrigerator 33, the inner wall of the ventilation pipe 31 is provided with a negative ion generator 34, and the pipe opening of the ventilation pipe 31 extending to the outside of the support box 1 is provided with a fan 35.

[0055] In order to constrain the radial degree of freedom of the column 12, in the embodiment: a limiting assembly is arranged in the cylinder base 11, the limiting assembly comprises a plurality of U-shaped seats 41, the U-shaped seats 41 are installed at the top end of the ring pipe 13, sliding blocks 42 are slidingly installed between the opposite sides of the U-shaped seats 41, the top end of the sliding blocks 42 is connected with a pressing block 43 through a fastener, the pressing block 43 is matched with the column 12, a first vertical plate 44 is arranged on the side wall of the pressing block 43, a second vertical plate 46 is arranged between the opposite sides of the U-shaped seats 41, an elastic limiting piece 45 is arranged between the first vertical plate 44 and the second vertical plate 46, the elastic limiting piece 45 is one of a diaphragm, a leaf spring or a high-rigidity spring, a laser displacement sensor 47 is arranged on the side of the second vertical plate 46 close to the first vertical plate 44, the laser displacement sensor 47 is used for monitoring the displacement of the second vertical plate 46 and uploading to a controller, and the controller analyzes and processes data to monitor the abrasion of the pressing block 43.

[0056] The working principle and use process of the application: electromagnetic drive principle: the excitation coil 14 generates a constant magnetic field after being electrified, the driving coil 15 is driven by the Lorentz force in the magnetic field, and the column 12 and the bearing plate 2 are driven to make axial reciprocating motion, thereby generating vibration;

[0057] Elastic support and limiting principle: the first spring 4 and the air spring 16 jointly constitute an elastic support structure of the bearing plate 2 in the vertical direction, the elastic limiting piece 45, the first vertical plate 44, the second vertical plate 46 and the U-shaped seat 41 cooperate to provide elastic support for the sliding block 42, constrain the radial displacement of the column 12, and ensure the motion accuracy;

[0058] Active cooling and environmental control principle: the fan 35 drives airflow, the airflow is cooled by the Peltier effect refrigerator 33, and then is introduced into the electromagnetic drive structure area through the air inlet pipe 32 to carry away heat, at the same time, the airflow carries the negative ion generator 34 to release negative ions, purify the air and improve the insulation strength;

[0059] Self-adaptive wire harness management principle: the telescopic rod group 23 adjusts the height of the pipe member 24, and the shock-absorbing clamping structure of the pipe member 24 provides flexible clamping and vibration buffering for the high-voltage lead wire through the synergistic action of the second spring 28 and the damping shaft sleeve 29.

[0060] Use process: first, the test sample and the test device are installed on the bearing plate 2, then the high-voltage lead wire is put into the opening of the pipe member 24, the telescopic rod group 23 is adjusted to the appropriate height, the flexible locking of the lead wire is automatically completed by the shock-absorbing clamping structure, then the test spectrum wave is input to the driving coil 15, the mechanical vibration is started, and the tens of thousands of volt alternating-current composite voltage is applied to the test sample at the same time, in the subsequent hundreds of hours of continuous operation, the cooling system continuously works to maintain thermal equilibrium, at the same time, the laser displacement sensor 47 monitors the displacement of the pressing block 43 in real time, the data is fed back to the controller, which is used for evaluating the stability of the system and warning abnormal wear, and realizing predictive maintenance.

[0061] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, change, and equivalent modification of the above embodiments, which is made according to the technical essence of the present application, without departing from the technical solution of the present application, still belongs to the scope of the technical solution of the present application.

Claims

1. A vibration table for combined AC / DC voltage testing of converter transformer oil paper, characterized in that, include: A support box (1) with an open top is provided, and a bearing plate (2) is connected to the top of the support box (1) through an elastic support component. A cylindrical base (11) is installed on the bottom wall of the support box (1). A column (12) is provided at the bottom end of the bearing plate (2). An electromagnetic drive structure is provided between the cylindrical base (11) and the column (12). An air spring (16) is provided on the bottom wall of the cylindrical base (11). The top end of the air spring (16) is connected to the bottom end of the column (12). An adjustable wire clamp assembly is installed on the top of the support plate (2); Cooling components are installed inside the support box (1); A limiting component is provided inside the cylinder (11) to constrain the radial degree of freedom of the column (12); Among them, mechanical vibration is simulated by electromagnetic drive structure and elastic support components, and combined with adjustable clamps and air-cooled static elimination components, stable and continuous collaborative aging test is achieved under AC and DC high voltage environment.

2. The vibration table for AC / DC voltage composite testing of converter transformer oil paper according to claim 1, characterized in that, The elastic support assembly includes a support base (3) and a first spring (4). The two support bases (3) are respectively installed at the top of the support box (1) and the bottom of the bearing plate (2), and the first spring (4) is installed between the two support bases (3).

3. The vibration table for AC / DC voltage composite testing of converter transformer oil paper according to claim 1, characterized in that, The electromagnetic drive structure includes a ring tube (13), and the inner wall of the cylinder seat (11) is provided with an integral ring tube (13). The cross-section of the ring tube (13) is E-shaped. An excitation coil (14) is provided in the groove of the ring tube (13). A drive coil (15) is provided on the side wall of the column (12). A gap is left between the column (12) and the ring tube (13).

4. The vibration table for AC / DC voltage composite testing of converter transformer oil paper according to claim 3, characterized in that, The annular tube (13) is provided with a plurality of folded plates (17) arranged in a ring array. The folded plates (17) are located radially on the cylinder seat (11). The top of the annular tube (13) is provided with a plurality of drainage holes (18). The plurality of drainage holes (18) and the horizontal projection of the folded plates (17) are arranged in a circular array and alternately distributed in the circumferential direction. The side wall of the column (12) is provided with a sleeve (19). The outer diameter of the sleeve (19) is adapted to the inner diameter of the annular tube (13).

5. The vibration table for AC / DC voltage composite testing of converter transformer oil paper according to claim 1, characterized in that, The wire clamp assembly includes multiple hollow plates (21), which are installed on the top of the support plate (2). The multiple hollow plates (21) are disconnected at both ends and together form an open rectangular outline. The hollow plates (21) are detachably mounted with L-shaped blocks (22) by fasteners. The top of the horizontal section of the L-shaped block (22) is provided with a telescopic rod assembly (23). The top of the telescopic rod assembly (23) is provided with a tube member (24) with an axial opening. The side wall of the tube member (24) is provided with an axial opening and is configured to guide the placement of the wire harness. The tube member (24) is provided with a shock-absorbing clamping structure.

6. The vibration table for AC / DC voltage composite testing of converter transformer oil paper according to claim 5, characterized in that, The shock-absorbing clamping structure includes three U-shaped tubes (25), which are installed on the inner wall of the tube component (24). Two limiting shafts (26) are slidably installed through the U-shaped tubes (25). An insulating clamp (27) is fixedly installed at the end of the limiting shaft (26) away from the U-shaped tube (25). Two second springs (28) are provided between the insulating clamp (27) and the U-shaped tube (25). A damping bushing (29) is provided on the inner wall of the through hole of the limiting shaft (26). The damping bushing (29) matches the limiting shaft (26).

7. The vibration table for AC / DC voltage composite testing of converter transformer oil paper according to claim 1, characterized in that, The cooling assembly includes a ventilation duct (31), which is installed inside the support box (1). Multiple air inlet pipes (32) are provided between the top wall of the ventilation duct (31) and the cylinder seat (11). The multiple air inlet pipes (32) are arranged in a circumferential array. Peltier effect coolers (33) are provided at the top and bottom of the ventilation duct (31). A negative ion generator (34) is provided on the inner wall of the ventilation duct (31). A fan (35) is provided in the pipe opening of the ventilation duct (31) extending outside the support box (1).

8. The vibration table for AC / DC voltage composite testing of converter transformer oil paper according to claim 3, characterized in that, The limiting component includes multiple U-shaped seats (41), the U-shaped seats (41) are installed on the top of the ring tube (13), and sliding blocks (42) are slidably installed between the two opposing sides of the U-shaped seats (41). The top of the sliding blocks (42) is connected to a pressure block (43) by fasteners. The pressure block (43) matches the column (12). The side wall of the pressure block (43) is provided with a first upright plate (44). A second upright plate (46) is provided between the two opposing sides of the U-shaped seats (41). An elastic limiting member (45) is provided between the first upright plate (44) and the second upright plate (46).

9. A vibration table for a converter transformer oil-paper AC / DC voltage composite test according to claim 8, characterized in that, A laser displacement sensor (47) is provided on the side of the second upright plate (46) close to the first upright plate (44). The laser displacement sensor (47) is used to monitor the displacement of the second upright plate (46) and upload it to the controller. The controller analyzes and processes the data to monitor the wear of the pressure block (43).

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