Clamp-type isolating switch clamping force measuring device and measuring method

Abstract

The application discloses a clamp-type isolating switch clamping force measuring device, which comprises a measuring rod main body, a pressure collecting module emitting device arranged on the measuring rod main body and a power supply device for supplying power to the pressure collecting module emitting device. The measuring rod main body comprises a test instrument pressure block arranged oppositely. The pressure collecting module emitting device comprises a test instrument pressure block and a pressure sensor. The pressure sensor is arranged in the measuring rod main body and protrudes from at least one side surface of the measuring rod main body. The test instrument pressure block is arranged on the surface of the measuring rod main body and abuts against the protruding part of the pressure sensor. The test instrument pressure block deforms and extrudes the pressure sensor. The pressure detecting device is connected with the pressure collecting module emitting device and is used for receiving the pressure transmitted by the pressure collecting module emitting device and measuring the pressure. The power transmission device is connected with the pressure detecting device and is used for transmitting the power source for the pressure detecting device, so that the convenient operation effect is achieved.

Description

Technical Field

[0001] This invention relates to the technical field of high-voltage switches, and in particular, to a clamping force measuring device for a clamp-type disconnector switch. Furthermore, it includes a measuring method applied to the aforementioned clamping force measuring device for the clamp-type disconnector switch. Background Technology

[0002] With the rapid development of power systems, the requirements for power grid safety, reliability, and the performance of electrical switchgear are constantly increasing. Outdoor clamp-type disconnect switches are completely exposed to the air, directly enduring wind, rain, and various seasonal environments. The contact points of the contacts are more susceptible to corrosion from rainwater and dust, leading to surface oxidation, poor contact, and excessive heat generation at the contact points. In severe cases, this can cause the contact springs to overheat and anneal, resulting in insufficient clamping force and accidents. Because outdoor clamp-type disconnect switches are located at high altitudes, testing their clamping force is difficult and inconvenient for on-site personnel. Therefore, this paper proposes a novel, easy-to-install, and accurate clamping force measuring device for clamp-type disconnect switches. Summary of the Invention

[0003] This invention provides a clamping force measuring device for clamp-type disconnect switches to solve the technical problems in the prior art. Outdoor clamp-type disconnect switches are completely exposed to the air without any cover, directly subjected to wind, rain, and various environments throughout the seasons. The contact points of the contacts and fingers are more susceptible to corrosion from rainwater and dust, surface oxidation leading to poor contact and excessive heat at the contact points. In severe cases, the contact springs may overheat and fail, resulting in insufficient clamping force and accidents. Furthermore, because outdoor clamp-type disconnect switches are located at high altitudes, testing their clamping force is difficult and causes inconvenience to on-site personnel.

[0004] According to one aspect of the present invention, a clamping force measuring device for a clamp-type disconnect switch is provided, comprising:

[0005] The device comprises a measuring rod body 10, a pressure acquisition module transmitter 1 mounted on the measuring rod body 10, and a power supply for supplying power to the pressure acquisition module transmitter 1. The pressure acquisition module transmitter 1 includes a tester pressure block 7 and a pressure sensor 8. The pressure sensor 8 is disposed within the measuring rod body 10 and protrudes from at least one side of the measuring rod body 10. The tester pressure block 7 is disposed on the surface of the measuring rod body 10 and abuts against the protruding part of the pressure sensor 8. The pressure sensor 8 is compressed by the deformation of the tester pressure block 7. A pressure detection device is connected to the pressure acquisition module transmitter 1 to receive the pressure transmitted by the pressure acquisition module transmitter 1 and to measure the pressure. A power transmission device is connected to the pressure detection device and is used to supply power to the pressure detection device.

[0006] Furthermore, the measuring rod body 10 includes a tester pressure measuring block 3 that is spliced ​​with each other. The tester pressure measuring block 3 has a recessed groove. The pressure sensor 8 is housed in the groove and protrudes from the side of the tester pressure measuring block 3. The tester pressure block 7 is disposed on the surface of the tester pressure measuring block 3 and abuts against the protruding part of the pressure sensor 8. The pressure acquisition module transmitter 1 is disposed at the end of the measuring rod body 10.

[0007] Furthermore, the pressure detection device includes a signal receiving device and a data processing system. The signal receiving device is used to receive the pressure signal transmitted by the pressure sensor 8. The signal receiving device is connected to the data processing system and transmits the pressure signal transmitted by the pressure sensor 8 and converts it into a stable value of clamping force.

[0008] Furthermore, a fastening device is provided on the pressure measuring block 3 of the tester. The fastening device is connected to the pressure sensor 8 and is used to fix the pressure sensor 8.

[0009] Furthermore, the power transmission device includes a cable and a power supply, with the power supply located at the end of the measuring rod body 10.

[0010] The cable connects the power supply and the pressure sensor 8.

[0011] Furthermore, a clamping device is provided on the main body 10 of the measuring rod, which includes a cable clamping plate 9 for clamping and fixing the cable.

[0012] Furthermore, a side cover plate 4 is provided on the main body 10 of the measuring rod, which is used to fix the power supply.

[0013] The present invention also discloses a measurement method applied to the clamping force measuring device for the clamp-type disconnect switch described above;

[0014] Step 1: The clamping force is collected at the input end of the measuring device;

[0015] Step 2: After A / D conversion, pulse shaping, and decoding, the data is converted into a computer-recognizable language;

[0016] Step 3: Process the data through the instrument's main control unit, view and store the data.

[0017] The present invention has the following beneficial effects:

[0018] This invention discloses a clamp-type disconnector switch clamping force measuring device. The main body of the tester's handheld rod has four pressure sensor placement grooves on its inner side, with a cable embedded in the center, secured by a cable clamping plate. One end of the cable connects to a portable power source, which is covered with a power switch button, power indicator light, and a built-in circuit panel with wiring and power protection features. The other end of the cable connects to a pressure acquisition module transmitter. The tester's pressure measuring block is connected to the main body via a pin, embedding the pressure sensor within it to effectively prevent damage from external factors. The tester's clamping block and the pressure measuring block are connected by screws, allowing for easy replacement if damaged. The clamp-type disconnector switch acts on the pressure, clamping the pressure measuring block and compressing the internal clamping force sensor. The pressure sensor's force-collected signal is transmitted wirelessly to the clamping force signal receiving and measuring device. The processing system converts the collected pressure signal into a single-chip microcomputer signal, measuring the stable value of the contact clamping force after the disconnector switch is closed. The diagnostic system compares this value with the standard value for this product model to determine if the product's clamping force is qualified.

[0019] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0022] Figure 2 This is the front view of the present invention;

[0023] Figure 3 This is a side view of the present invention;

[0024] Figure 4 A flowchart of a measurement method according to the present invention.

[0025] Legend:

[0026] 1. Pressure acquisition module transmitter; 2. Tester pin; 3. Tester pressure measuring block; 4. Side cover plate; 5. Circuit cover plate; 6. Circuit panel; 7. Tester pressure block; 8. Pressure sensor; 9. Cable clamp; 10. Measuring rod body. Detailed Implementation

[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0028] Example 1

[0029] like Figure 1 , Figure 2 , Figure 3 As shown, this embodiment discloses a clamp-type disconnector switch clamping force measuring device 10, including a pressure acquisition module transmitter 1, a pressure detection device, a power transmission device, and a measuring rod body 10. When testing the clamping force of the disconnector switch, the pressure received by the pressure sensor is collected and transmitted through the pressure acquisition module transmitter 1.

[0030] The pressure is measured at the pressure detection device. A power transmission device is installed on the main body 10 of the measuring rod. The power transmission device supplies power to the pressure detection device to detect the pressure value. The measuring rod is equipped with a separate configuration of the acquisition module transmitter 1, the pressure detection device, the power transmission device, and the main body 10 of the measuring rod.

[0031] like Figure 1 , Figure 2 , Figure 3 As shown, the pressure acquisition module transmitting device 1 includes a pressure sensor 8, which is positioned near the end of the measuring rod body 10. The pressure sensor 8 is used to receive and transmit pressure transmitted from the outside (testing instrument pressure block). By placing the pressure sensor 8 on the measuring rod body 10, the external pressure is collected and transmitted. A groove is provided on the body of the measuring rod, and the pressure sensor 8 is installed in the groove. The groove secures the pressure sensor 8, allowing it to be stably mounted on the measuring rod body 10 for pressure measurement and transmission.

[0032] Furthermore, the measuring rod body 10 includes a tester pressure measuring block 3 that is spliced ​​with each other. The tester pressure measuring block 3 has a recessed groove. The pressure sensor 8 is housed in the groove and protrudes from the side of the tester pressure measuring block 3. The tester pressure block 7 is disposed on the surface of the tester pressure measuring block 3 and abuts against the protruding part of the pressure sensor 8. The pressure acquisition module transmitter 1 is disposed at the end of the measuring rod body 10.

[0033] like Figure 1 , Figure 2 , Figure 3 As shown, the pressure detection device includes a signal receiving device and a data processing system. The signal receiving device is used to receive the pressure signal transmitted by the pressure sensor 8. The signal receiving device is connected to the data processing system and transmits the pressure signal transmitted by the pressure sensor 8 and converts it into a stable value of clamping force. The signal receiving device includes a signal receiver. The signal receiver and the data processing system interpret the received pressure value signal and form visualized data for display.

[0034] like Figure 1 , Figure 2 , Figure 3 As shown, a fastening device is provided on the measuring rod body 10. The fastening device is used to fix the pressure sensor 8 on the measuring rod body 10. Specifically, a fastening device is provided on the tester pressure block (3). The fastening device is connected to the pressure sensor (8) and used to fix the pressure sensor (8). Optionally, the fastening device is a pin. Two tester pressure blocks are assembled opposite each other and connected by the pin. The tester pressure block (3) is provided with four grooves. The pressure sensor is arranged in a corresponding groove. The pressure sensor is located in two oppositely assembled grooves. By setting the tester pin 2 on the measuring rod body 10, the pressure sensor 8 is fixed by the tester pin 2 on the measuring rod body 10. Under the action of the tester side pressure block and the tester pressure block 7, the pressure sensor 8 is fixed on the measuring rod body 10. The pressure sensor 8 is embedded in the measuring rod body 10 by the tester pressure block 3 and the tester pressure block 7, and the pressure sensor 8 is stably installed on the measuring rod body 10.

[0035] like Figure 1 , Figure 2 , Figure 3 As shown, the power transmission device includes a cable and a power supply. The power supply is located at the end of the measuring rod body 10, and the power supply and pressure sensor 8 are positioned opposite each other. The power transmission device includes a cable and a power supply. The power supply is located at the end of the measuring rod body 10. The cable connects the power supply and the pressure sensor 8. A clamping device is provided on the measuring rod body 10, including a cable clamping plate 9 for clamping and fixing the cable. A side cover plate 4 is provided on the measuring rod body 10 for fixing the power supply.

[0036] The inner side of the measuring rod body has four pressure sensor placement grooves, with a built-in cable outlet in the center, secured by a cable clamp. One end of the cable connects to a portable power supply, which is covered with a power switch button, power indicator light, and a built-in circuit panel with wiring and power protection features. The other end of the cable connects to the pressure acquisition module's transmitting device. The pressure measuring block of the tester is connected to the main body via a pin, embedding the pressure sensor within it, effectively preventing damage from external factors. The pressure block of the tester is connected to the pressure measuring block with screws, allowing for easy replacement if damaged. The clamp-type isolating switch acts on the upper part, such as... Figure 2 The device clamps the pressure measuring block and squeezes the internal clamping force sensor. The pressure sensor collects relevant signals and transmits them wirelessly to the clamping force signal receiving and measuring device. The processing system converts the collected pressure signals into a microcontroller signal and measures the stable value of the contact clamping force after the disconnecting switch is closed. The diagnostic system compares this value with the standard value of this product model to determine the product's clamping force.

[0037] Is the tightening force up to standard?

[0038] The working principle of a clamp-type disconnector clamping force measuring device in this embodiment is as follows: The inner side of the main body of the tester's handheld rod has four pressure sensor 8 placement grooves, with a built-in cable outlet line fixed by a cable clamping plate 9. One end of the cable connects to a portable power supply, which is covered with a power switch button, a power indicator light, and a built-in circuit panel 6, equipped with line and power protection. The other end of the cable connects to a pressure acquisition module transmitter 1. The tester's pressure measuring block 3 is connected to the main body via a pin, embedding the pressure sensor 8 within it, effectively preventing damage from external factors. The tester's clamping block 7 is connected to the pressure measuring block by screws, making it easy to replace if damaged. The clamp-type disconnector acts on the pressure, clamping the pressure measuring block and squeezing the internal clamping force sensor. The pressure sensor 8 collects the relevant signal through a wireless line and transmits it to the clamping force signal receiving and measuring device. The pressure signal collected by the processing system is converted from analog to digital into a single-chip microcomputer signal, measuring the stable value of the contact clamping force after the disconnector is closed. The diagnostic system compares this value with the standard value of the product model to determine whether the product's clamping force is qualified.

[0039] Example 2

[0040] The difference between this embodiment and embodiment 1 is that the fastening device includes a clamp. The pressure sensor 8 is set on the measuring rod body 10 by the clamp, the pressure sensor 8 is bound by the clamp, and the pressure sensor 8 is set in the groove on the measuring rod body 10. The clamp is used to position and fix the pressure sensor 8, ensuring that the pressure sensor 8 is stably fixed on the measuring rod body 10.

[0041] Reference Figure 4 This embodiment also discloses a measurement method, including:

[0042] Step 1: The instrument input terminal collects the clamping force.

[0043] Step 2: After A / D conversion, pulse shaping, and decoding, the data is converted into a computer-recognizable language;

[0044] Step 3: Process the data through the instrument's main control unit, view and store the data.

[0045] This clamping force signal receiving and measuring device detects the clamping force of a disconnecting switch, analyzes, judges, and diagnoses it, providing a reliable basis for the maintenance and design of the disconnecting switch. The device is characterized by its input terminal acquiring the clamping force magnitude, converting it into computer-readable language through A / D conversion, pulse shaping, and decoding, and then processing, viewing, and storing the data through the instrument's main control unit. It features simple and quick operation, wide applicability, high stability, and comprehensive functionality.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A tongs-type disconnector clamping force measuring device, characterized by: It comprises: a measuring rod body (10), a pressure collecting module emitting device (1) arranged on the measuring rod body (10), and a power supply device for supplying power to the pressure collecting module emitting device (1), the pressure collecting module emitting device (1) comprises a tester pressure block (7) and a pressure sensor (8), the pressure sensor (8) is arranged in the measuring rod body (10) and at least protrudes from one side of the measuring rod body (10), the tester pressure block (7) is arranged on the surface of the measuring rod body (10) and abuts against the protruding part of the pressure sensor (8), and the pressure sensor (8) is extruded by the deformation of the tester pressure block (7); a pressure detection device connected to the pressure collecting module emitting device (1) for receiving the pressure transmitted by the pressure collecting module emitting device and measuring the pressure; a power transmission device connected to the pressure detection device for transmitting power to the pressure detection device; the measuring rod body (10) comprises a relatively spliced tester pressure block (3), a groove is arranged on the tester pressure block (3), the pressure sensor (8) is arranged in the groove and protrudes from the side of the tester pressure block (3), the tester pressure block (7) is arranged on the surface of the tester pressure block (3) and abuts against the protruding part of the pressure sensor (8), and the pressure collecting module emitting device (1) is arranged at the end of the measuring rod body (10); a fastening device is arranged on the tester pressure block (3), the fastening device is connected to the pressure sensor (8) and is used for fixing the pressure sensor (8); the fastening device comprises a clamp, the pressure sensor (8) is bundled by the clamp to be arranged in the groove on the measuring rod body (10).

2. The clamp force measuring device for a clamp disconnector according to claim 1, characterized in that: The pressure detection device comprises a signal receiving device and a data processing system, the signal receiving device is used for receiving the pressure signal transmitted by the pressure sensor (8), the signal receiving device is connected to the data processing system and transmits the pressure signal transmitted by the pressure sensor (8) and converts it into a stable value of clamping force.

3. The clamp force measuring device for a clamp disconnector according to claim 1, characterized in that: The power transmission device comprises a cable and a power supply, the power supply is arranged at the end of the measuring rod body (10), and the cable is connected to the power supply and the pressure sensor (8).

4. A tongs-type disconnector clamping force measuring device according to claim 3, characterized in that: A pressing device is arranged on the measuring rod body (10), the pressing device comprises a cable pressing plate (9), and the cable pressing plate (9) is used for pressing and fixing the cable.

5. A tongs-type disconnector clamping force measuring device according to claim 4, characterized in that: A side cover plate (4) is arranged on the measuring rod body (10), and the side cover plate (4) is used for fixing the power supply.

6. A method of measurement, characterized by: The device is applied to the clamp type isolating switch clamping force measuring device in any one of claims 1-5; Step 1: the input end of the measuring device collects the clamping force; Step 2: A / D conversion, pulse shaping, and decoding are performed to convert the computer recognition language; Step 3: the data is processed by the instrument main control unit, and the data is viewed and stored.

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