CN212808477U - Semi-automatic wire changing device for high-voltage test of multi-core cable - Google Patents
Semi-automatic wire changing device for high-voltage test of multi-core cable Download PDFInfo
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- CN212808477U CN212808477U CN202020776756.6U CN202020776756U CN212808477U CN 212808477 U CN212808477 U CN 212808477U CN 202020776756 U CN202020776756 U CN 202020776756U CN 212808477 U CN212808477 U CN 212808477U
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- 238000011056 performance test Methods 0.000 abstract description 3
- 238000012795 verification Methods 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000000275 quality assurance Methods 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000013024 troubleshooting Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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- 238000003379 elimination reaction Methods 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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Abstract
The utility model discloses a semi-automatic wire changing device of multicore cable high voltage test, including high-pressure test platform and wire changing test circuit, high-pressure test platform includes high-pressure output end high-voltage phase line, high-pressure output end zero phase line, withstand voltage tester, sixteen test fixture and four test control button, wire changing test circuit including be controlled by respectively four test control button's main ac contactor, main ac contactor controls the branch ac contactor of eight parallelly connected settings respectively. The device promotes the electrical performance test guarantee capability of products after various combinations while promoting efficiency in the multi-core cable test, and promotes the conservatism and quality assurance capability of product quality verification.
Description
Technical Field
The utility model relates to a wire and cable alternating voltage tests technical field, especially relates to a semi-automatic line device that trades of multicore cable high voltage testing.
Background
Along with the rapid development of multi-core cables, the dual influences of the existing field and product measurement are required to improve the working efficiency urgently. At present, according to the national standard GB/T3048.8-2007, the clamp (phase and core wire combination) needs to be frequently replaced for the high-voltage test work of the multi-core cable, the working strength is high, time and labor are consumed, and meanwhile, the phenomenon of over-test or missing test caused by personnel memory factors occurs. Based on the reasons, independent research and development of the high-voltage testing automatic phase-changing device are imperative.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art not enough, the technical problem that solve provides a semi-automatic line device that trades of multicore cable high-voltage testing, when promoting efficiency in the cable test, promotes the product electrical performance test guarantee ability after the multiple combination, promotes product quality and verifies conservatism and quality assurance ability.
The utility model discloses a make above-mentioned technical problem solve through following technical scheme.
The high-voltage test semi-automatic wire changing device for the multi-core cable comprises a high-voltage test bench and a wire changing test circuit, wherein the high-voltage test bench comprises a high-voltage phase line at a high-voltage output end, a zero-phase line at the high-voltage output end, a voltage resistance tester, first to sixteenth test fixtures and first to fourth test control buttons, the wire changing test circuit comprises first to fourth main alternating current contactors controlled by the first to fourth test control buttons respectively, and the first to fourth main alternating current contactors control eight branch alternating current contactors arranged in parallel respectively; the high-voltage phase line output end of the first main alternating current contactor is connected with two upper contacts of the first to fourth branch alternating current contactors in parallel, the zero-phase line output end of the first main alternating current contactor is connected with two upper contacts of the fifth to eighth branch alternating current contactors in parallel, and lower contacts matched with the upper contacts are sequentially and electrically connected with the first to sixteenth test fixtures; two upper contacts of each of the ninth, tenth, thirteenth and fourteenth branch alternating current contactors are connected in parallel to the high-voltage phase line output end of the second main alternating current contactor, two upper contacts of each of the eleventh, twelfth, fifteenth and sixteenth branch alternating current contactors are connected in parallel to the zero-phase line output end of the second main alternating current contactor, and lower contacts matched with the upper contacts are sequentially and electrically connected with the first to sixteenth test fixtures; two upper contacts of the seventeenth, nineteenth, twenty-first and twenty-third branch alternating current contactors are connected in parallel to the high-voltage phase line output end of the third main alternating current contactor, two upper contacts of the eighteenth, twentieth, twenty-twelfth and twenty-fourth branch alternating current contactors are connected in parallel to the zero-phase line output end of the third main alternating current contactor, and lower contacts matched with the upper contacts are sequentially and electrically connected with the first to sixteenth test fixtures; and each one-bit upper contact of the twenty-fifth to thirty-second branch alternating current contactors is connected in parallel to the high-voltage phase line output end of the fourth main alternating current contactor and each other one-bit upper contact is connected in parallel to the zero-phase line output end of the fourth main alternating current contactor, and the upper contact matched with the lower contact is sequentially and electrically connected with the first to sixteenth test fixtures.
Preferably, the four test control buttons are interlocked.
Preferably, the main alternating current contactors are interlocked and connected.
Preferably, the high-voltage test bench is provided with a circuit conduction indicator lamp matched with the test control button.
The semi-automatic wire-changing testing method for the high-voltage test of the multi-core cable comprises the following steps:
the method comprises the following steps: the multi-core cable is a 2-16-core cable, all the cores of the multi-core cable are correspondingly accessed one by one according to the sequence of the test fixture, and the following test steps are selectively executed;
step two: pressing a first test control button, closing a first main alternating current contactor coil, providing coil power for first to eighth branch alternating current contactors to enable upper and lower contacts which are matched to be conducted, enabling second to fourth main alternating current contactors to be in an interlocking contact disconnection state, enabling a high-voltage test board to boost a voltage value of a cable product to be tested, keeping a test required time length, automatically reducing the voltage to 0V, eliminating short-circuit, breakdown and flashover faults, enabling a withstand voltage test to pass, closing the power supply, and executing a third step;
step three: pressing a second test control button, closing a second main alternating current contactor coil, providing coil power for a ninth branch alternating current contactor to a sixteenth branch alternating current contactor to enable upper and lower contacts which are matched to be conducted, enabling the first main alternating current contactor, the third main alternating current contactor and the fourth main alternating current contactor to be in an interlocking contact disconnection state, automatically reducing the voltage to 0V after a specified voltage value of a cable product is tested by a high-voltage test board and a required test duration is kept, eliminating short-circuit, breakdown and flashover faults, enabling a withstand voltage test to pass, closing the power supply, and executing the fourth step;
step four: pressing a third test control button, closing a coil of a third main alternating current contactor, providing coil power for seventeenth to twenty fourth alternating current contactors to enable upper and lower contacts which are matched to be conducted, enabling the first, second and fourth main alternating current contactors to be in an interlocking contact disconnection state, keeping a test required time length after a high-voltage test board boosts a specified voltage value of a cable-making product, automatically reducing the voltage to 0V, eliminating short-circuit, breakdown and flashover faults, passing a voltage-resistant test, closing the power supply, and executing a fifth step;
step five: and pressing a fourth test control button, closing a coil of the fourth main alternating current contactor, providing a coil power supply for twenty-fifth to thirty-second branch alternating current contactors to enable upper and lower contacts which are matched to be conducted, wherein the first to third main alternating current contactors are in an interlocking contact disconnection state, the high-voltage test board automatically reduces the voltage to 0V after keeping test required time after boosting a specified voltage value of a cable product is tested, short-circuit, breakdown and flashover faults are eliminated, a voltage withstanding test is passed, the power supply is turned off, and the test is finished.
Preferably, in the second step, in the testing process for the first core to the sixteenth core of the 16-core cable, the phase line group (the 1 st core to the 8 th core) and the zero line group (the 9 th core to the 16 th core) generate testing voltages mutually.
Preferably, in the third step, in the test process for the first core to the sixteenth core of the 16-core cable, the phase line groups (1, 2, 3, 4, 9, 10, 11, 12 and 8 cores) and the zero line groups (5, 6, 7, 8, 13, 14, 15, 16 and 8 cores) generate test voltages with respect to each other.
Preferably, in the fourth step, in the test process for the first core to the sixteenth core of the 16-core cable, the phase line groups (1, 2, 5, 6, 9, 10, 13, 14 and 8 cores) and the zero line groups (3, 4, 7, 8, 11, 12, 15, 16 and 8 cores) generate test voltages with respect to each other.
Preferably, in the fifth step, in the test process for the first core to the sixteenth core of the 16-core cable, the phase line groups (1, 3, 5, 7, 9, 11, 13, 15 and 8 cores) and the zero line groups (2, 4, 6, 8, 10, 12, 14 and 16 and 8 cores) generate test voltages with respect to each other.
The utility model has the advantages that: through the working principle of the alternating current contactor, the four-key button is developed by combining the high-voltage test wire-changing rule to continuously complete the all-removal test of 16-core cable products, the time is measured and calculated for 15 times, 5 minutes and at least 1 hour and 15 minutes (the time required for manually replacing the clamp each time is counted, the time is calculated for 1 minute each time, and the total time is at least 1 hour and 45 minutes) according to the same effect of 100% removal achieved by the current standard test method, and the technical scheme can be completed in 20 minutes. Compared with the national standard, the requirement is higher, the quality verification guarantee is stronger, the efficiency is improved in the 16-core and 16-core or more-core cable test, the electric performance test guarantee capability of products after various combinations is improved, and the product quality verification conservatism and the quality guarantee capability are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural diagram of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The principle structure schematic diagram shown in fig. 1, the utility model discloses a semi-automatic wire changing device of multicore cable high voltage test, include high-pressure test platform and trade line test circuit, high-pressure test platform includes high-pressure output end high-voltage phase line, high-pressure output end zero-phase line, withstand voltage tester, first to sixteenth test fixture 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116 and first to fourth test control button 21, 22, 23, 24, interlocking wiring between four test control button. Furthermore, the high-voltage test bench is provided with circuit conduction indicating lamps 51, 52, 53 and 54 in cooperation with the test control button. The line changing test circuit comprises a first main alternating current contactor, a second main alternating current contactor, a third main alternating current contactor, a fourth test control button and a fourth test control button, wherein the first main alternating current contactor, the second main alternating current contactor, the third main alternating current contactor, the fourth main alternating current contactor and the fourth main alternating current contactor are respectively controlled by the first main alternating current contactor, the second main alternating current contactor, the fourth main alternating current contactor and the fourth main alternating current contactor.
The two-position upper contacts of the first to fourth branch alternating current contactors 311, 312, 313 and 314 are connected in parallel to the high-voltage phase line output end of the first main alternating current contactor, the two-position upper contacts of the fifth to eighth branch alternating current contactors 315, 316, 317 and 318 are connected in parallel to the zero-phase line output end of the first main alternating current contactor, and the lower contacts matched with the upper contacts are sequentially and electrically connected with the first to sixteenth test fixtures.
Two upper contacts of the ninth, tenth, thirteenth and fourteenth branch ac contactors 321, 322, 325 and 326 are connected in parallel to the high-voltage phase line output terminal of the second main ac contactor, two upper contacts of the eleventh, twelfth, fifteenth and sixteenth branch ac contactors are connected in parallel to the zero-phase line output terminal of the second main ac contactor, and lower contacts matched with the upper contacts are sequentially and electrically connected with the first to sixteenth test fixtures;
the upper two-bit contacts of the seventeenth, nineteenth, twenty-first and twenty-third branch alternating current contactors 331, 333, 335 and 337 are connected in parallel to the high-voltage phase line output end of the third main alternating current contactor, and the upper two-bit contacts of the eighteenth, twentieth, twenty-twelfth and twenty-fourth branch alternating current contactors 332, 334, 336 and 338 are connected in parallel to the zero-phase line output end of the third main alternating current contactor, and the lower contacts matched with the upper contacts are sequentially and electrically connected with the first to sixteenth test fixtures.
One upper contact of each of twenty-fifth to thirty-second branch ac contactors 341, 342, 343, 344, 345, 346, 347, 348 is connected in parallel to the high-voltage phase line output terminal of the fourth main ac contactor, and the other upper contact is connected in parallel to the zero-phase line output terminal of the fourth main ac contactor, and the lower contacts matched with the upper contacts are sequentially and electrically connected to the first to sixteenth test fixtures.
Referring to fig. 1, after cable cores are sequentially connected into corresponding first to sixteenth test fixtures, an automatic cable-changing test process is performed.
The first step is as follows: after the first test control button is pressed down, the coil of the first main alternating current contactor is closed (the second to fourth main alternating current contactors are in an interlocking contact disconnection state, the line conduction indicator lamp is on 51, and the line conduction indicator lamps 52, 53 and 54 are off), and coil power supplies are provided for the first to eighth branch alternating current contactors to be closed (upper and lower contacts are conducted), namely the first test control button controls 9 contactors; for safety distance consideration, the upper and lower contacts of all contactors are connected only by using (selecting the first and third contacts from left to right); 8 contacts (upper contact 1 position and upper contact 3 position) of the first to fourth branch alternating current contactors are connected in parallel to a phase line of a high-voltage output end of the high-voltage test board, so that the high-voltage output end of the high-voltage test board is connected in parallel to be conducted into a high-voltage phase line; 8 contacts (an upper contact 1 bit and an upper contact 3 bit) of the fifth-eighth branch alternating current contactor are connected in parallel to a zero-phase line of a high-voltage output end of the high-voltage test bench, so that the high-voltage zero-phase line is connected in parallel and conducted into a high-voltage zero line; the lower contacts of the first to eighth branch alternating current contactors (corresponding to the upper contacts with the same wiring position) are sequentially connected into the connecting lines of the first to sixteenth test fixtures from left to right (the lower contacts are uniformly fixed and connected with the connecting line rule); the first to eighth test fixtures are connected with the phase lines in parallel, the ninth to sixteenth test fixtures are connected with the zero line in parallel, the voltage of the high-voltage test board is increased to a specified voltage value of a product test, the required test time is kept, the voltage is automatically reduced to 0V, the short-circuit, breakdown and flashover faults are eliminated in two groups of (parallel) circuits, the voltage withstanding test is passed, and the second step is executed after the main power supply of the high-voltage test board is closed.
The second step is that: after the second test control button is pressed down, the coil of the second main alternating current contactor is closed (the first main alternating current contactor, the third main alternating current contactor and the fourth main alternating current contactor are in an interlocking contact disconnection state, the line conduction indicator lamp 52 is on, and the indicator lamps 51, 53 and 54 are off), and the ninth branch alternating current contactor and the sixteenth branch alternating current contactor are closed (upper and lower contacts are conducted), namely the second test control button controls 9 contactors. For safety distance considerations, all upper and lower contacts of the contactor are wired only with the contacts (first and third from left to right). 8 contacts (upper contact 1 position and upper contact 3 position) of the ninth, tenth, thirteenth and fourteenth branch alternating current contactors are connected in parallel to the high-voltage output end phase line of the high-voltage test bench, so that the high-voltage output end phase line is connected in parallel and conducted into a high-voltage phase line. 8 contacts (1 position of the upper contact and 3 positions of the upper contact) of the eleventh, twelfth, fifteenth and sixteenth branch alternating current contactors are connected in parallel to the zero-phase line of the high-voltage output end of the high-voltage test bench, so that the high-voltage zero-line is conducted in parallel. The lower contacts of the ninth to sixteenth branch alternating current contactors (corresponding to the same wiring position of the upper contacts) are sequentially connected with the connecting lines of the first to sixteenth test fixtures from left to right (the lower contacts are uniformly fixed and are connected with the line rule), so that the first to fourth test fixtures and the ninth to twelfth test fixtures are connected with the phase line, the fifth to eighth test fixtures and the thirteenth to sixteenth test fixtures are connected with the zero line, the voltage of the high-voltage test bench is increased to a specified voltage value of a product test and then is automatically reduced to 0V after the test is kept for a required time, the voltage of the high-voltage test bench is reduced to 0V, the voltage of the high-voltage test bench is eliminated (short circuit, breakdown and flashover faults) in two groups of parallel circuits is indicated, the;
the third step: after the third test control button is pressed down, the third main ac contactor coil is closed (the first, second and fourth are the interlock contact off state, the line conduction indicator lamp 53 is on, and the 51, 52 and 54 indicator lamps are off), and the seventeenth to twenty-fourth ac contactors are powered on (the upper and lower contacts are switched on), that is, the third test control button controls 9 contactors. For safety distance considerations, all upper and lower contacts of the contactor are wired only with the contacts (first and third from left to right). And 8 contacts of the seventeenth, nineteenth, twenty-first and twenty-third branch alternating current contactors (the upper contact is 1 bit and the upper contact is 3 bits) are connected in parallel to the high-voltage output end phase line of the high-voltage test bench, so that the high-voltage output end phase line is connected in parallel and conducted into a high-voltage phase line. And 8 contacts (1 bit of the upper contact and 3 bits of the upper contact) of the eighteenth, twentieth, twenty-twelfth and twenty-fourth branch alternating current contactors are connected in parallel to the zero-phase line of the high-voltage output end of the high-voltage test bench, so that the high-voltage zero-line is connected in parallel and conducted into a high-voltage zero line. The lower contacts of seventeenth to twenty-fourth alternating current contactors (corresponding to the same wiring position of the upper contacts) are sequentially connected with first to sixteenth test fixture connecting lines from left to right (the lower contacts are uniformly fixed and are connected with the line rules), so that the first, second, fifth, sixth, ninth, tenth, thirteenth and fourteenth test fixtures are connected with the line, the third, fourth, seventh, eighth, eleventh, twelfth, fifteenth and fourteenth test fixtures are connected with a zero line, the voltage of a high-voltage test bench is increased to enable the product to be tested to be kept for a required time and then automatically reduced to 0V, the faults of short circuit, breakdown and flashover are eliminated from two groups of parallel lines, the voltage-resistant test of the time passes, and the fourth step is executed after the total power supply of the high-voltage test bench is closed.
The fourth step: after the fourth test control button is pressed down, the coil of the fourth main alternating current contactor is closed (the first main alternating current contactor, the second main alternating current contactor and the third main alternating current contactor are in an interlocking contact disconnection state, the line conduction indicator lamp 54 is on, and the indicator lamps 51, 52 and 53 are off), and coil power supplies are provided for the twenty-fifth to thirty-second branch alternating current contactors and then the coil power supplies are closed (the upper contacts and the lower contacts are conducted), namely the fourth test control button controls 9 contactors. For safety distance consideration, the upper and lower contacts of all contactors are connected only by using (selecting the first and third contacts from left to right); 8 contacts (upper contact 1 position) of the twenty-fifth to thirty-second branch alternating current contactors are connected in parallel to the phase line of the high-voltage output end of the high-voltage test bench, so that the high-voltage output end of the high-voltage test bench is connected in parallel to be conducted into a high-voltage phase line. 8 contacts (upper contact 3 bits) of the twenty-fifth to thirty-second branch alternating current contactors are connected in parallel to the zero-phase line of the high-voltage output end of the high-voltage test bench, so that the high-voltage zero-phase line is connected in parallel and conducted into a high-voltage zero line. The lower contacts of twenty-fifth to thirty-second branch alternating current contactors (corresponding to the upper contacts with the same wiring) are sequentially connected into the connecting lines of the first to sixteenth test fixtures from left to right (the lower contacts are uniformly fixed and connected in parallel). The parallel connection of the first test fixture, the third test fixture, the fifth test fixture, the seventh test fixture, the ninth test fixture, the eleventh test fixture, the thirteenth test fixture and the fifteenth test fixture is realized to connect the phase line, the second test fixture, the fourth test fixture, the sixth test fixture, the eighth test fixture, the tenth test fixture, the twelfth test fixture, the fourteenth test fixture and the sixteenth test fixture are connected to the zero line in parallel, the voltage of the high-voltage test bench is increased to a specified voltage value, the required test duration is kept, and then the voltage is automatically reduced to 0V, so that the voltage is eliminated (short circuit, breakdown and flashover faults) in two groups of parallel circuits are shown, the voltage withstanding test is passed.
All troubleshooting tests were performed on lines # 1-16 with four buttons, such as the following list:
after the first test control button of the first test step is tested, the fault removing result of the test is as follows: the possibility of a fault between the cable cores 1, 2, 3, 4, 5, 6, 7, 8 and 9, 10, 11, 12, 13, 14, 15, 16 is excluded, namely: the phase line groups (1, 2, 3, 4, 5, 6, 7, 8) and the zero line groups (9, 10, 11, 12, 13, 14, 15, 16) generate over-test voltages, so that the fault test purpose of the 64 possibilities is eliminated (the phase line groups and the zero line groups respectively have 8 wire cores, and 64 combinations exist before each other in a mode of combining two wire groups into one group), so that two numbers can be connected in parallel in the same phase circuit in subsequent tests.
After the second test control button of the second test step is tested, the fault removing result of the test is as follows: the possibility of a fault between the cable cores 1, 2, 3, 4, 9, 10, 11, 12 and 5, 6, 7, 8, 13, 14, 15, 16 is excluded, namely: the phase line groups (1, 2, 3, 4, 9, 10, 11, 12) generate over-test voltages for the zero line groups (5, 6, 7, 8, 13, 14, 15, 16), so that the above 64 possible fault test purposes are eliminated (the phase line groups have 8 core wires for each zero line group, and 64 combinations exist before each other in a mode of combining two phase lines into one group), so that two numbers can be connected in parallel in the same phase circuit in subsequent tests.
After the third test control button in the third test step is finished, the test troubleshooting result is as follows: the possibility of a fault between the cable cores 1, 2, 5, 6, 9, 10, 13, 14 and 3, 4, 7, 8, 11, 12, 15, 16 is excluded, namely: the phase line groups (1, 2, 5, 6, 9, 10, 13, 14) generate over-test voltages for the zero line groups (3, 4, 7, 8, 11, 12, 15, 16), so that the above 64 possible fault test purposes are eliminated (the phase line groups have 8 core wires for each zero line group, and 64 combinations exist before each other in a mode of combining two phase lines into one group), so that two numbers can be connected in parallel in the same phase circuit in subsequent tests.
And after the fourth test control button in the fourth test step is finished, the test troubleshooting result is as follows: the possibility of a fault between the cable cores 1, 3, 5, 7, 9, 11, 13, 15 and 2, 4, 6, 8, 10, 12, 14, 16 is excluded, namely: the phase line groups (1, 3, 5, 7, 9, 11, 13, 15) generate over-test voltages for the zero line groups (2, 4, 6, 8, 10, 12, 14, 16), so that the above 64 possible fault test purposes are eliminated (the phase line groups have 8 core wires for each zero line group, and 64 combinations exist before each other in a form of one group of two), so that two numbers can be connected in parallel in the same phase circuit in subsequent tests.
After the fourth test control button in the fourth test step is finished, the test troubleshooting result is as follows: to exclude the possibility of faults between the cable cores 1, 3, 5, 7, 9, 11, 13, 15 and 2, 4, 6, 8, 10, 12, 14, 16, the combination relationship between the cores is 1 and (2, 4, 6, 8, 10, 12, 14, 16) for 8 possibilities, 3 and (2, 4, 6, 8, 10, 12, 14, 16) for 8 possibilities, 5 and (2, 4, 6, 8, 10, 12, 14, 16) for 8 possibilities, 7 and (2, 4, 6, 8, 10, 12, 14, 16) for 8 possibilities, 9 and (2, 4, 6, 8, 10, 12, 14, 16) for 8 possibilities, 11 and (2, 4, 6, 8, 10, 12, 14, 16) for 8 possibilities, 13 and (2, 4, 6, 8, 10, 12, 14, 16) for 8 possibilities, 15 and (2, 4, 6, 8, 10, 12, 14, 16) for 8 possibilities, thus logically aiming to eliminate 64 possibilities for each test step.
The testing method of the 16-core cable is exemplified according to the principle, the 16-core cable all-elimination test can be completed through four steps by using 36 contactors, and in the test of the multi-core cable within 16 cores, all the cores are only required to be correspondingly accessed from the test fixture No. 1 in sequence.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (4)
1. Semi-automatic line device that trades of multicore cable high voltage test, characterized by: the high-voltage testing platform comprises a high-voltage testing platform and a wire changing testing circuit, wherein the high-voltage testing platform comprises a high-voltage phase line at a high-voltage output end, a zero-phase line at the high-voltage output end, a voltage resistance tester, a first testing clamp, a second testing clamp, a third testing clamp, a fourth testing control button and a fourth testing control button, the wire changing testing circuit comprises a first main alternating current contactor, a second main alternating current contactor, a third main alternating current contactor, a fourth main alternating current contactor and a fourth main alternating current contactor, the first main alternating current contactor, the second main alternating current contactor, the third; the high-voltage phase line output end of the first main alternating current contactor is connected with two upper contacts of the first to fourth branch alternating current contactors in parallel, the zero-phase line output end of the first main alternating current contactor is connected with two upper contacts of the fifth to eighth branch alternating current contactors in parallel, and lower contacts matched with the upper contacts are sequentially and electrically connected with the first to sixteenth test fixtures; two upper contacts of each of the ninth, tenth, thirteenth and fourteenth branch alternating current contactors are connected in parallel to the high-voltage phase line output end of the second main alternating current contactor, two upper contacts of each of the eleventh, twelfth, fifteenth and sixteenth branch alternating current contactors are connected in parallel to the zero-phase line output end of the second main alternating current contactor, and lower contacts matched with the upper contacts are sequentially and electrically connected with the first to sixteenth test fixtures; two upper contacts of the seventeenth, nineteenth, twenty-first and twenty-third branch alternating current contactors are connected in parallel to the high-voltage phase line output end of the third main alternating current contactor, two upper contacts of the eighteenth, twentieth, twenty-twelfth and twenty-fourth branch alternating current contactors are connected in parallel to the zero-phase line output end of the third main alternating current contactor, and lower contacts matched with the upper contacts are sequentially and electrically connected with the first to sixteenth test fixtures; and each one-bit upper contact of the twenty-fifth to thirty-second branch alternating current contactors is connected in parallel to the high-voltage phase line output end of the fourth main alternating current contactor and each other one-bit upper contact is connected in parallel to the zero-phase line output end of the fourth main alternating current contactor, and the upper contact matched with the lower contact is sequentially and electrically connected with the first to sixteenth test fixtures.
2. The multi-core cable high voltage test semi-automatic line changing device of claim 1, which is characterized in that: and the four test control buttons are interlocked and wired.
3. The multi-core cable high voltage test semi-automatic line changing device of claim 1, which is characterized in that: and the main alternating current contactors are connected in an interlocking mode.
4. The multi-core cable high voltage test semi-automatic line changing device of claim 1, which is characterized in that: and a circuit conduction indicator lamp is arranged on the high-voltage test board and matched with the test control button.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020776756.6U CN212808477U (en) | 2020-05-12 | 2020-05-12 | Semi-automatic wire changing device for high-voltage test of multi-core cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020776756.6U CN212808477U (en) | 2020-05-12 | 2020-05-12 | Semi-automatic wire changing device for high-voltage test of multi-core cable |
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Assignee: HIPO ELECTRIX SCIENCE & TECHNOLOGY Co.,Ltd. Assignor: ZHEJIANG YUANTONG CABLE MANUFACTURE Co.,Ltd. Contract record no.: X2023980042679 Denomination of utility model: A semi-automatic line changing device for high-voltage testing of multi-core cables Granted publication date: 20210326 License type: Exclusive License Record date: 20230926 |
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