Control cable alignment insulation detection all-in-one machine

Abstract

The invention belongs to the field of power supply, and particularly relates to a control cable alignment insulation detection all-in-one machine. The cable production alignment insulation detection all-in-one machine comprises an alignment part, a detection part and a control part, wherein the alignment part comprises a multi-channel signal generator and a multi-channel signal receiver; the output signal frequency of each output channel of the multi-channel signal generator is different from the output signal frequencies of other output channels; the insulation detection part adopts an ampere meter; the direct-current power supply is used for supplying power to the signal generation unit and the ampere meter; all the multi-channel signal generators, the ampere meter and the direct-current power supply are arranged in the first shell; and the multi-channel signal receiver is arranged in the second shell. The device supports alignment and insulation detection of the high-voltage cable at the same time, and has a wide popularization prospect.

Description

Technical Field

[0001] The invention belongs to the field of power supply, and in particular relates to an all-in-one machine for controlling the insulation of cable pairs. Background Art

[0002] Power cables provide a stable power supply for various industries and are very important in modern society. In actual work, there are two common methods for controlling cable alignment: the first is that some cables have serial numbers on each core, and the serial number can be directly checked; the second is to use the ohm range of a multimeter to measure the continuity. Generally, cables are shielded, and the shielded wire is used as the common wire. The staff at one end of the cable short-circuits a core with the shielded wire; the staff at the other end of the cable uses a multimeter to short-circuit the shielded wire and a core of the cable in turn. When the multimeter buzzer sounds, the same wire is found. When there is no shielded wire, one wire can be grounded (connected to the ground wire of the screen cabinet), and the multimeter on the other side is connected to the ground wire of the screen cabinet, and one end is checked for the line (this method is prone to poor contact and may also cause interference. It is best to only use it to determine a few core wires, such as public lines and telephone lines, and do not use it during thunderstorms); in addition, a temporary line can be pulled as a common line. It can be seen that a single person cannot perform line alignment work, and line alignment must be operated by two people in cooperation, using communication tools.

[0003] At the same time, in actual work, if you want to measure the cable insulation, you need to bring an insulation megohmmeter to measure the cable again. The basic principle of the insulation megohmmeter is: when the handle is turned, the handle drives the internal coil of the generator to rotate, which can generate a DC high voltage and apply it to the object being tested, and then measure the current size and the resistance value of the object being tested, so as to calculate the insulation resistance of the object being tested.

[0004] Based on this scenario, what needs to be solved is how to improve work efficiency, reduce the workload and labor intensity of staff, and reduce the number of staff required for work while ensuring the safety of facilities and personnel. Therefore, a device is needed that can use auxiliary means to complete control cable alignment and insulation testing to improve the working conditions of staff. Summary of the invention

[0005] In view of the above technical problems, the present invention provides an all-in-one machine for controlling cable pair insulation detection, which uses simple equipment and components, changes the previous situation where two people must cooperate and use communication tools to perform cable pairing, improves work efficiency, and can also realize insulation detection of high-voltage cables, thus having broad promotion prospects.

[0006] The present invention is achieved through the following technical solutions: A control cable pair insulation detection integrated machine, the control cable pair insulation detection integrated machine comprising: A wiring part, the wiring part includes a multi-channel signal generator, a multi-channel signal receiver and a signal frequency analyzer; the output signal frequency of each output channel of the multi-channel signal generator is different from the output signal frequency of other output channels; the multi-channel signal generator and the multi-channel signal receiver are connected through a control cable to be wired; An insulation detection part, wherein the insulation detection part adopts an ammeter; A direct current power supply, used to supply power to the signal generating unit and the ammeter; A first housing, wherein all the multi-channel signal generators, the ammeter and the DC power supply are arranged inside the first housing; The second shell has a multi-channel signal receiver disposed inside the second shell.

[0007] Furthermore, the number of output channels of the multi-channel signal generator and the number of receiving channels of the multi-channel signal receiver are the same.

[0008] Furthermore, a first switch button and a second switch button are provided on the first housing, and the first switch button is connected to the multi-channel signal generator to control the operation and shutdown of the multi-channel signal generator; The second switch button is connected to the ammeter, and the second switch button is used to control the operation and shutdown of the ammeter.

[0009] Furthermore, a line alignment indicator light and an insulation detection indicator light are provided on the first shell, the line alignment indicator light is connected to the multi-channel signal generator, and the line alignment indicator light is on when the multi-channel signal generator is in working state, and the insulation detection indicator light is connected to the ammeter, and the insulation detection indicator light is on when the ammeter is in working state.

[0010] Furthermore, the insulation detection part also includes a terminal connected to the ammeter.

[0011] Furthermore, the instrument panel of the ammeter is arranged on the first shell, a divider is arranged in the first shell, the ammeter and the instrument panel are connected through the divider, and the divider is used to convert the current measured by the ammeter into resistance and display it through the instrument panel; and the terminal is arranged outside the first shell.

[0012] Furthermore, the output voltage of the DC power supply is 24V.

[0013] A control cable alignment method, the method comprising: (1) Before measuring, cut off the power supply of the cable under test, short-circuit and discharge it to the ground, and clean the surface of the cable under test; (2) Click the first switch button and observe the alignment indicator light. When the alignment indicator light is always on, the multi-channel signal generator is in working state. (3) The output signal frequency of each output channel of the multi-channel signal generator is known. A signal frequency analyzer is used to detect the signal frequency received by each receiving channel of the multi-channel signal receiver to determine the corresponding hole position of the control cable.

[0014] A control cable insulation detection method, the method comprising: (1) Before measuring, cut off the power supply of the cable under test, short-circuit and discharge it to the ground, and clean the surface of the cable under test; (2) When measuring the insulation resistance of the cable under test, connect the terminal of the ammeter of the cable under test to (3) Click the second switch button to start the ammeter and observe the insulation detection indicator light. When the insulation detection indicator light is always on, the ammeter is in working condition and the reading is taken. After the reading is completed, the cable under test is discharged. Beneficial technical effects of the present invention: The present invention discloses an all-in-one control cable pair insulation detection machine, which uses only simple equipment and components, changes the previous situation that cable pairing must be coordinated by two people and communication tools must be used, improves work efficiency, and can also realize insulation detection of high-voltage cables, thus having broad promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of an all-in-one control cable pair insulation detection device according to an embodiment of the present invention; The figures are marked as follows: 1. first housing; 2. second housing; 3. first switch button; 4. second switch button; 5. alignment indicator light; 6. insulation detection indicator light; 7. terminal; 8. instrument panel. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] On the contrary, the present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention as defined by the claims. Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the detailed description of the present invention below. Those skilled in the art can fully understand the present invention without the description of these details.

[0018] Embodiment 1: A control cable pair insulation detection integrated machine: the control cable pair insulation detection integrated machine comprises: A wiring part, the wiring part includes a multi-channel signal generator, a multi-channel signal receiver and a signal frequency analyzer; the output signal frequency of each output channel of the multi-channel signal generator is different from the output signal frequency of other output channels; the multi-channel signal generator and the multi-channel signal receiver are connected through a control cable to be wired; specifically, each output channel of the multi-channel signal generator is connected to a receiving channel of the multi-channel signal receiver through a control cable; An insulation detection part, wherein the insulation detection part adopts an ammeter; A direct current power supply, used to supply power to the signal generating unit and the ammeter; A first housing, wherein all the multi-channel signal generators, the ammeter and the DC power supply are arranged inside the first housing; The second shell has a multi-channel signal receiver disposed inside the second shell.

[0019] In this embodiment, the number of output channels of the multi-channel signal generator and the number of receiving channels of the multi-channel signal receiver are the same. Preferably, the number of channels is 5-20.

[0020] In this embodiment, a first switch button and a second switch button are provided on the first housing, and the first switch button is connected to the multi-channel signal generator to control the operation and shutdown of the multi-channel signal generator; The second switch button is connected to the ammeter, and the second switch button is used to control the operation and shutdown of the ammeter; The first switch button and the second switch button are not turned on at the same time; only one of the multi-channel signal generator and the ammeter is in working state at the same time; the two functions of line alignment and insulation detection are switched by the first switch button and the second switch button.

[0021] In this embodiment, a line alignment indicator light and an insulation detection indicator light are provided on the first shell, and the line alignment indicator light is connected to the multi-channel signal generator. When the multi-channel signal generator is in a working state, the line alignment indicator light is on, and the insulation detection indicator light is connected to the ammeter. When the ammeter is in a working state, the insulation detection indicator light is on.

[0022] In this embodiment, the insulation detection part also includes a terminal connected to the ammeter.

[0023] In this embodiment, the instrument panel of the ammeter is arranged on the first housing; and the terminal is arranged outside the first housing.

[0024] In this embodiment, the output voltage of the DC power supply is 24V.

[0025] Embodiment 2: A control cable alignment method, using the control cable alignment insulation detection integrated machine described in Embodiment 1, characterized in that the method comprises: (1) Before measuring, cut off the power supply of the cable under test, short-circuit and discharge it to the ground, and clean the surface of the cable under test; the purpose of cleaning is to reduce the contact resistance and ensure the correctness of the measurement results.

[0026] (2) Click the first switch button and observe the alignment indicator light. When the alignment indicator light is always on, the multi-channel signal generator is in working state. The DC power supply supplies power to the multi-channel signal generator. (3) The output signal frequency of each output channel of the multi-channel signal generator is known, and a signal frequency analyzer is used to detect the signal frequency received by each receiving channel of the multi-channel signal receiver to determine the corresponding hole position of the control cable. The control cable pair insulation detection integrated machine provided by the present invention can check multiple cables at one time.

[0027] Embodiment 3: A control cable insulation detection method, using a control cable pair insulation detection integrated machine described in Embodiment 1, the method comprising: (1) Before measuring, cut off the power supply of the cable to be measured, short-circuit it to the ground and clean the surface of the cable to be measured. Never measure with the equipment energized to ensure personal and equipment safety. The purpose of cleaning is to reduce contact resistance and ensure the accuracy of the measurement results.

[0028] (2) When measuring the insulation resistance of the cable under test, connect the terminal of the ammeter of the cable under test to (3) Click the second switch button to start the ammeter and observe the insulation detection indicator light. When the insulation detection indicator light is always on, the ammeter is in working condition and takes readings. After the readings are completed, the cable under test is discharged. The discharge method is to remove the ground wire used during measurement from the megohmmeter and short-circuit it with the device under test. Therefore, the control cable pair insulation detection integrated machine provided by the present invention supports cable insulation detection, eliminates unqualified cables, and ensures the safety of equipment and personnel.

[0029] The invention provides an all-in-one control cable pairing and insulation detection machine which can simultaneously support control cable pairing and insulation detection, supports single-person pairing without using communication tools, can improve work efficiency, reduce the workload of staff, and has good practicality and portability.

[0030] 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 control cable line insulation detection integrated machine, characterized in that: The cable pair insulation detection integrated machine comprises: A wiring part, the wiring part includes a multi-channel signal generator, a multi-channel signal receiver and a signal frequency analyzer; the output signal frequency of each output channel of the multi-channel signal generator is different from the output signal frequency of other output channels; the multi-channel signal generator and the multi-channel signal receiver are connected through a control cable to be wired; An insulation detection part, wherein the insulation detection part adopts an ammeter; A direct current power supply, used to supply power to the signal generating unit and the ammeter; A first housing, wherein all the multi-channel signal generators, the ammeter and the DC power supply are arranged inside the first housing; The second shell has a multi-channel signal receiver disposed inside the second shell.

2. According to claim 1, a control cable pair insulation detection integrated machine is characterized in that: The number of output channels of the multi-channel signal generator is the same as the number of receiving channels of the multi-channel signal receiver.

3. According to claim 1, a control cable pair insulation detection integrated machine is characterized in that: A first switch button and a second switch button are arranged on the first housing, wherein the first switch button is connected to the multi-channel signal generator and is used to control the operation and shutdown of the multi-channel signal generator; The second switch button is connected to the ammeter, and the second switch button is used to control the operation and shutdown of the ammeter.

4. According to claim 1, a control cable pair insulation detection integrated machine is characterized in that: A line alignment indicator light and an insulation detection indicator light are provided on the first shell. The line alignment indicator light is connected to the multi-channel signal generator. When the multi-channel signal generator is in working state, the line alignment indicator light is on. The insulation detection indicator light is connected to the ammeter. When the ammeter is in working state, the insulation detection indicator light is on.

5. The control cable pair insulation detection integrated machine according to claim 1, characterized in that: The insulation detection part also includes a terminal connected to the ammeter.

6. The control cable pair insulation detection integrated machine according to claim 4, characterized in that: The instrument panel of the ammeter is arranged on the first shell, a divider is arranged in the first shell, the ammeter and the instrument panel are connected via the divider; and the terminal is arranged outside the first shell.

7. The control cable pair insulation detection integrated machine according to claim 1, characterized in that: The output voltage of the DC power supply is 24V.

8. A control cable alignment method, using a control cable alignment insulation detection integrated machine as claimed in any one of claims 1 to 7, characterized in that: The method comprises: (1) Before measuring, cut off the power supply of the cable under test, short-circuit and discharge it to the ground, and clean the surface of the cable under test; (2) Click the first switch button and observe the alignment indicator light. When the alignment indicator light is always on, the multi-channel signal generator is in working state. (3) The output signal frequency of each output channel of the multi-channel signal generator is known. A signal frequency analyzer is used to detect the signal frequency received by each receiving channel of the multi-channel signal receiver to determine the corresponding hole position of the control cable.

9. A control cable insulation detection method, using a control cable pair insulation detection integrated machine as claimed in any one of claims 1 to 7, characterized in that: The method comprises: (1) Before measuring, cut off the power supply of the cable under test, short-circuit and discharge it to the ground, and clean the surface of the cable under test; (2) When measuring the insulation resistance of the cable under test, connect the terminal of the ammeter of the cable under test to (3) Click the second switch button to start the ammeter and observe the insulation detection indicator light. When the insulation detection indicator light is always on, the ammeter is in working condition and readings are taken. After the readings are completed, the cable under test is discharged.

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