CN220526473U - Cable fault simulation device - Google Patents

Abstract

The utility model provides a cable fault simulation device which comprises a multifunctional panel, a plurality of measuring lines, fault setting jumpers, a plurality of resistors, a plurality of capacitors and a plurality of banana sockets, wherein a plurality of holes are distributed on the multifunctional panel in an array mode, the banana sockets are arranged in the holes, the plurality of resistors and the plurality of capacitors are welded between each row of banana sockets on the back of the multifunctional panel, and the plurality of measuring lines and the fault setting jumpers can be inserted into the banana sockets. The cable fault simulation device 1 is small in size, light in weight and convenient to carry; the fault setting is convenient, and the functional panel can quickly set and simulate various cable faults; the components are firmly fixed, and the electrical characteristics of the fault points are stable; the fault setting type and the fault setting result are visual, and the training and the assessment are convenient.

Description

Cable fault simulation device

Technical Field

The utility model relates to the technical fields of logging test and electric power, in particular to a cable fault simulation device.

Background

The length of the logging cable is 4500-7500m, the logging cable is composed of an outer layer armored (grounding) steel wire and a plurality of copper cable cores wrapped in the outer layer armored (grounding) steel wire, and the logging cable is generally provided with single-core, three-core, four-core, five-core and seven-core cables and is responsible for connecting logging instruments and then sending the logging instruments into an oil-water well, and transmitting electric energy and test signals. The logging cable works in severe environments such as underground high temperature, high pressure, corrosive liquid and the like, and is influenced by large-load tension, impact load, inertia force and the like, so that cable faults are easily caused. Therefore, logging constructors are required to be skilled in mastering the detection and removal method of the logging cable faults, the accident handling capacity is improved, and related technical training and checking work is carried out.

At present, a few kilometers of scrapped cables are used in training and checking, components such as a resistor and a capacitor are connected at the end, faults such as on-off and insulation of the cables are mainly simulated, and electrical parameters such as a resistance value, a capacitance value, charge and discharge time and charge and discharge current are measured, so that the following problems occur in the training process:

1. simulation of faults is difficult to implement, and is time-consuming and labor-consuming.

2. The simulation faults cannot be set rapidly and randomly, and the assessment results cannot objectively reflect the employee capability level.

3. The simulation fault items are few, and the actual situation can not be completely reflected.

4. Simulated fault performance instability

5. The cable is inconvenient to move.

At present, in the logging industry, no cable fault simulation teaching device for effectively solving the problems exists, so that development of a teaching auxiliary device capable of simulating logging faults is urgently needed.

In application number: in CN 201020583135.2's chinese patent application, a cable fault simulation training device is related to, its characterized in that: the cable fault simulation device comprises a cable fault simulation box and a cable fault simulation circuit arranged in the cable fault simulation box; the cable fault simulation circuit comprises a cable open circuit fault simulation circuit, a leakage resistor, a ground fault simulation circuit and an interphase short circuit fault simulation circuit; the advantages are that: the cable fault simulation circuit is arranged in the cable fault simulation box, and can be used for setting various faults such as cable open circuit, cable interphase short circuit, cable single-wire grounding short circuit, interphase resistance and the like, operators can directly measure the cable input end or the load end fixed outside the box by using other basic instruments such as an insulation tester, a universal meter and the like, the time for the operators to learn and master the cable fault detection technology by using the basic instruments can be effectively shortened, the cable fault detection efficiency in actual operation is improved, and the loss of users is further reduced.

In application number: in CN201822083304.5, a cable fault simulation box is related to, comprising: the simulation box, the simulation panel, the combination switch, the first terminal row and the second terminal row are fixed at the bottom of the simulation box through screws, and the simulation panel is equal to the bottom surface of the simulation box in size and is fixed in the middle position of the simulation box in parallel; the combined switch is arranged on the analog panel, each jack of the input terminal jack is connected to the input side of the first terminal row through a wire, the output side of the first terminal row is connected with one end of a small switch in the combined switch through a wire, the other end of the small switch is connected with the input side of the second terminal row through a wire, and the output side of the second terminal row is connected with the input side of the output terminal jack through a wire; the simulation box is small in size, low in cost and convenient to carry, can reduce the influence of environmental factors on electric power training practice teaching and examination, can perform practice training and examination of multiple types of fault judgment and elimination, and can improve the speed and efficiency of the training and examination.

In application number: in CN200910309789.8, a system for simulating cable faults and locating faults is disclosed, which comprises: the device comprises a cable fault simulation box, an electrode mounting plate arranged in the cable fault simulation box, three incoming line electrodes and three outgoing line electrodes; the three wire inlet electrodes are respectively connected with the three-phase wire cores in the wire inlet cable, and the three wire outlet electrodes are respectively connected with the three-phase wire cores in the wire outlet cable; a resistor box for simulating disconnection faults, low-resistance faults, high-resistance faults and flashover faults between the wire inlet electrode and the wire outlet electrode is arranged in the cable fault simulation box, and a high-voltage cable terminal is arranged at the tail end of the wire outlet cable connected with the wire outlet electrode; the high-voltage cable terminal is used for connecting with a cable fault positioning detector. The cable fault location detector comprises: the central control unit, pulse transmitting circuit used for transmitting pulse signals to the tested cable, reflection receiving circuit used for receiving reflection signals from the tested cable and high-speed data acquisition circuit; the output end of the reflection receiving circuit is connected with the input end of the high-speed data acquisition circuit.

In application number: in CN201010588426.5, a cable fault simulator and a cable fault simulation system are related, wherein the cable fault simulator comprises: a line concentration board (1) on which a plurality of connection terminals (2) are arranged; a cable connected between a first terminal and a second terminal of the plurality of connection terminals; and one end of the discharge ball (3) is connected with the first terminal or the second terminal, and the other end of the discharge ball is grounded. The utility model can lead staff to master the cable fault detection method faster and more accurately. Meanwhile, the cable fault simulator is low in manufacturing cost, simple and convenient to use and accurate in positioning.

The prior art is greatly different from the cable fault simulation device, the technical problem to be solved by the cable fault simulation device is not solved, and the cable fault simulation device is novel.

Disclosure of Invention

The utility model aims to provide a cable fault simulation device which can rapidly set cable simulation faults, assist teaching and examination, improve training and examination efficiency, simulate various faults, objectively reflect actual situations on site and practically improve handling capacity of operators.

The aim of the utility model can be achieved by the following technical measures: the utility model provides a cable fault analogue means, this cable fault analogue means includes multi-functional panel, many measuring lines, trouble set up the wire jumper, a plurality of resistance, a plurality of electric capacity and a plurality of banana socket, and the array distributes a plurality of holes on this multi-functional panel, installs in the hole the banana socket, at this multi-functional panel back every row between the banana socket welding a plurality of resistance with a plurality of electric capacity, many measuring lines and this trouble set up the wire jumper all can peg graft in the banana socket.

The aim of the utility model can be achieved by the following technical measures:

the cable fault simulation device further comprises a mounting box and a fixing screw, and the multifunctional panel is fixed inside the mounting box through the fixing screw.

The multifunctional panel is provided with 3 rows and 8 columns of holes in an array distribution way.

The number of the plurality of measuring lines is 16.

Each column of the multifunctional panel is provided with a simulation channel, each simulation channel is used for describing a fault type by laser, the resistor and the capacitor are correspondingly welded between the banana sockets at the back of the multifunctional panel, and the electrical parameters of a fault cable are simulated.

And (3) inserting 14 measuring lines into one group of each two measuring lines according to the serial numbers of 1-7, and simulating a cable core of each group of measuring lines, wherein the maximum simulation of the cable core can be realized.

And inserting the remaining 2 measuring lines into the cable outer armor simulation channel to simulate the cable outer armor, namely, grounding.

The banana plugs are arranged at the two ends of the fault setting jumper, and can bridge a plurality of simulation channels, so that complex combined faults are set.

And each end of the plurality of measuring wires is a measuring terminal for measurement, one end of the measuring wires is provided with a banana plug, and the banana plug can be inserted into the banana socket.

The measuring terminal of the measuring wire is connected with meters such as a universal meter and a megameter to measure the electrical parameter index of each cable core.

The cable fault simulation device can be used for training, learning and checking cable fault detection and investigation aiming at operators, and can also be used as a simulation cable in the instrument matching process. The beneficial effect of this novel patent is: the device is simple, the operation is convenient, the use of meters such as a universal meter, a megameter and a capacitance meter, the training and learning of practical subjects such as breakpoint positioning, on-off inspection and insulation judgment can be performed, and the training efficiency and the learning effect are practically improved; the fault type name of each measuring channel on the multifunctional panel is marked by laser, so that the fault type can be quickly set according to requirements; the electrical components such as the corresponding welding resistor, capacitor and the like on the back of the multifunctional panel simulation channel are utilized, the electrical performance of a fault point is reliable, various faults such as short circuit, circuit breaking, interphase insulation, disqualification of single-core grounding insulation and the like can be simulated, and the high simulation of cable faults is realized; the measuring line, the fault setting jumper wire and the functional panel adopt banana plugs and sockets for plugging, and the fault setting is rapid and convenient. By using fault setting jumpers and numbering measuring lines, complex combined cable faults can be set by changing the plugging positions and the arrangement sequence on the simulation channel.

The utility model has the following advantages:

1. the volume is small, the weight is light, and the carrying is convenient;

2. the fault setting is convenient, and the functional panel can quickly set and simulate various cable faults;

3. the components are firmly fixed, and the electrical characteristics of the fault points are stable;

4. the fault setting type and the fault setting result are visual, and the training and the assessment are convenient.

Drawings

FIG. 1 is a block diagram of a cable fault simulator of the present utility model;

FIG. 2 is an external view of an installation case according to an embodiment of the present utility model;

FIG. 3 is an external view of a measuring line according to an embodiment of the present utility model;

FIG. 4 is a diagram showing the appearance of the bottom resistor and capacitor of the multi-function panel according to one embodiment of the present utility model;

FIG. 5 is a schematic diagram of detecting single-phase ground insulation using a megohmmeter in accordance with an embodiment of the present utility model;

FIG. 6 is a schematic diagram of detecting phase insulation with a megohmmeter in an embodiment of the utility model;

FIG. 7 is a schematic diagram illustrating an on-off check with a multimeter in an embodiment of the present utility model;

FIG. 8 is a schematic diagram of a combined fault set-up in an embodiment of the present utility model;

in the figure, 1-mounting box; 2-a multifunctional panel; 3-fixing screws; 4-banana socket; 5-resistance; 6-1, 6-2-capacitance; 7-fault setting jumper wires; 8-measuring lines; 8-1-banana plug; 8-2-measuring terminals.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular forms also are intended to include the plural forms unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, and/or combinations thereof.

The cable fault simulation device comprises a mounting box, a multifunctional panel, a plurality of measuring lines, fault setting jumpers, a plurality of electrical elements such as resistors and capacitors, banana sockets, fixing screws and the like.

The specific implementation process of the utility model is as follows: the multifunctional panel is fixed in the mounting box by bolts, 3 rows and 8 columns of holes are distributed on the multifunctional panel in an array manner, and 24 holes are formed in the multifunctional panel, and banana sockets are mounted; each column is a simulation channel, each simulation channel is used for describing fault types by laser, and different components such as resistors, capacitors and the like are welded at the banana sockets at the bottom of the functional panel correspondingly to simulate the electrical parameters of the fault cable. And 16 measuring wires, wherein each measuring wire is provided with a measuring terminal at one end for measurement, and a banana plug is arranged at one end and can be inserted into the banana socket. Each group of 14 measuring wires is inserted into a simulation channel according to the number of 1-7, so that a cable core of the cable is simulated, and at most seven cables can be simulated, and 2 measuring wires are inserted into a cable outer armor (grounding) simulation channel to simulate the cable outer armor (grounding); and banana plugs are arranged at two ends of the 1-fault setting jumper, and a plurality of simulation channels can be bridged, so that complex combined faults are set.

The following are several embodiments of the utility model

Example 1

In a specific embodiment 1 to which the present utility model is applied, as shown in fig. 1 to 3, the embodiment of the present utility model includes a multifunctional panel 2, a set screw 3, a mounting box 1, a banana socket 4, an electrical performance element resistor 5, a capacitor 6, a fault setting jumper 7, a measuring line 8, and the like.

The multifunctional panel 2 is fixed in the mounting box 1 through the fixing screw 3, 3 rows and 8 columns of holes are punched in the multifunctional panel 2, and banana sockets 4 are mounted in the holes; different components such as a resistor 5, a capacitor 6 and the like are welded between each row of banana sockets 4 on the back of the multifunctional panel 2; 16 measuring wires 8 can be inserted into the banana socket 4; 1 fault is provided with a jumper 7 which can be inserted into the banana socket 4. The measuring wire 8 comprises a banana plug 8-1 and a measuring terminal 8-2.

The number of each two of the 16 measuring lines 8 is 1-7, each two measuring lines simulate 1 cable core with the measuring channel, the remaining 2 measuring lines 8 simulate cable outer armor (grounding), the electrical parameters of components such as resistance 5, capacitance 6, wires and the like of the measuring channel, and the fault type states such as access, disconnection, insulation and the like of the cable core can be simulated; inserting the fault setting jumpers 7 into the second row of banana sockets 4 may set a number of combined complex faults. And on one side of a measuring terminal of the measuring line 8, an electric parameter index of each cable core is measured by using a universal meter, a megameter and other instruments, so that the cable faults are judged, and the aim of training and checking is fulfilled.

Example 2

In a specific embodiment 2 to which the present utility model is applied, fault setting is performed by inserting each set of measuring wires 8 into the analog channel banana socket 4 of the multifunctional panel 2 and inserting the cable outer armor (ground wire) into the outer armor insertion hole (fig. 5).

Example 3

In a specific embodiment 3 to which the present utility model is applied, insulation measurement is performed, including:

single phase insulation to ground: the cable outer sheath (ground) resistance and the measuring line on one side were measured by a megohmmeter, and if the resistance was infinite, the cable was qualified for insulation to ground, and if the resistance was 0 or less than a predetermined value, the cable was unqualified for insulation to ground (fig. 5).

Phase-to-phase insulation: the insulation resistance between the two measurement lines was measured by a megohmmeter, and if the resistance was infinite, the phase insulation was acceptable, and if the resistance was 0 or less than a predetermined value, the phase insulation was unacceptable (fig. 6).

Example 4

In a specific embodiment 4 of the utility model, on-off measurement is performed, a measuring wire is in short connection with one side of an outer armor (grounding) of a cable, a universal meter is used for measuring the resistance of the measuring wire and one side of the outer armor of the cable at the other side, on-off of the cable is judged from the resistance, and the resistance is equal to the actual resistance of the cable and is a passage; if the resistance is infinite, it is open (fig. 7).

Example 5

In a specific embodiment 5 of the present utility model, the combination fault setting is performed, the fault setting jumper is inserted into the second row of banana sockets, and the measurement tracks are bridged, so that the complex fault combination can be simulated. The 6 cores are open circuits, the 6 cores and the 7 cores are insulated alternately to be qualified (fig. 8 a), a jumper is arranged to bridge the 6 cores and the outer armor simulation channel, and the arranged combined faults are as follows: on the basis of 6-core circuit breaking, the phase insulation between the 6-core phase and the 7-core phase is unqualified, and the insulation between the 6-core phase and the ground is unqualified (figure 8 b).

Example 6

In a specific embodiment 6 to which the present utility model is applied, the positioning of the broken core position of the cable core (capacitance method) is performed:

the measured capacitance 6-1 represents the broken core cable capacitance value, 6-2 represents the intact cable capacitance value, the capacitance ratio of 6-1 to 6-2 is the ratio of broken core to intact cable core length, and the segment length position can be calculated (figure 4).

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but although the present utility model has been described in detail with reference to the foregoing embodiment, it will be apparent to those skilled in the art that modifications may be made to the technical solution described in the foregoing embodiment, or equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Other than the technical features described in the specification, all are known to those skilled in the art.

Claims (7)

1. The cable fault simulation device is characterized by comprising a multifunctional panel, a plurality of measuring lines, fault setting jumpers, a plurality of resistors, a plurality of capacitors and a plurality of banana sockets, wherein a plurality of holes are distributed in an array manner on the multifunctional panel, the banana sockets are arranged in the holes, the resistors and the capacitors are welded between the banana sockets in each row on the back of the multifunctional panel, and the measuring lines and the fault setting jumpers can be spliced in the banana sockets.

2. The cable fault simulation device of claim 1, further comprising a mounting box and a set screw, the multi-function panel being secured inside the mounting box by the set screw.

3. The cable fault simulator of claim 1, wherein the multi-function panel has 3 rows and 8 columns of holes with an array distribution of perforations.

4. A cable fault simulation device according to claim 3, wherein the number of the plurality of measurement lines is 16.

5. The cable fault simulation device of claim 4, wherein each row of the multi-functional panel is a simulation trace, each simulation trace is used for marking fault types by laser, and the resistor and the capacitor are correspondingly welded between the banana sockets on the back of the multi-functional panel to simulate the electrical parameters of a fault cable.

6. The cable fault simulation apparatus of claim 5, wherein banana plugs are mounted at both ends of the fault setting jumper to bridge a plurality of simulation channels, thereby setting a complex combination fault.

7. The cable fault simulation device of claim 6, wherein the

One end of each of the plurality of measuring wires is a measuring terminal for measuring, one end is provided with a banana plug,

can be inserted into the banana socket.