CN216670197U - Low-voltage switch intelligent detection system - Google Patents
Low-voltage switch intelligent detection system Download PDFInfo
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- CN216670197U CN216670197U CN202122027567.6U CN202122027567U CN216670197U CN 216670197 U CN216670197 U CN 216670197U CN 202122027567 U CN202122027567 U CN 202122027567U CN 216670197 U CN216670197 U CN 216670197U
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Abstract
The utility model relates to the technical field of electric element detection, in particular to an intelligent detection system for a low-voltage switch, which comprises a control module, a detection module and an execution module, wherein the control module is used for controlling the detection module to perform the detection; the detection module comprises a loop resistance test module, a switching characteristic test module, an insulation resistance test module and a power supply module; the execution module comprises a loop resistance test execution module, a switch characteristic test execution module, an insulation resistance test execution module and a power supply execution module. According to the utility model, the detection module and the execution module are connected with the control module, when a tested object is detected, the corresponding detection item can be completed only by connecting the tested object with the execution module and controlling the corresponding execution module to act by the control module, so that the detection is performed without disconnecting wires for many times, the investigation efficiency is improved, and the problem of low investigation efficiency caused by the fact that the conventional low-voltage switch daily equipment is manually inspected and operated by manpower and the inspection is performed by a wiring disconnection test for many times is solved.
Description
Technical Field
The utility model relates to the technical field of electric element detection, in particular to an intelligent detection system for a low-voltage switch.
Background
The low-voltage switch is an important component of a power grid, and has great significance in safe operation; low voltage switches are highly susceptible to various faults that must be addressed immediately if a problem is found. In daily equipment maintenance, workers are generally required to perform manual investigation and manual operation, and the efficiency is low due to repeated wiring and disconnecting test detection.
Disclosure of Invention
The utility model provides an intelligent detection system for a low-voltage switch, overcomes the defects of the prior art, and can effectively solve the problem of low investigation efficiency caused by the fact that the investigation and operation of the conventional low-voltage switch daily equipment maintenance are carried out manually and need repeated wiring and disconnecting test detection.
The technical scheme of the utility model is realized by the following measures: an intelligent detection system for a low-voltage switch comprises a control module, a detection module and an execution module;
the detection module comprises a loop resistance test module, a switching characteristic test module, an insulation resistance test module and a power supply module;
the execution module comprises a loop resistance test execution module, a switch characteristic test execution module, an insulation resistance test execution module and a power supply execution module;
the circuit resistance testing module is connected with the circuit resistance testing execution module, the switch characteristic testing module is connected with the switch characteristic testing execution module, the insulation resistance testing module is connected with the insulation resistance testing execution module, and the power supply module is connected with the power supply execution module;
The control module is respectively connected with the loop resistance test module, the switch characteristic test module, the insulation resistance test module, the power supply module, the loop resistance test execution module, the switch characteristic test execution module, the insulation resistance test execution module and the power supply execution module.
The following is further optimization or/and improvement of the technical scheme of the invention:
the power supply module can comprise a program-controlled direct-current power supply module, a 24V direct-current power supply module and a 48V direct-current power supply module, the power supply execution module comprises a program-controlled direct-current power supply execution module, a program-controlled wet joint, a program-controlled short joint and an on-off detection channel, the program-controlled direct-current power supply module is connected with the program-controlled direct-current power supply execution module, the 24V direct-current power supply module and the 48V direct-current power supply module are both connected with the program-controlled wet joint, and the on-off detection channel is connected with the 24V direct-current power supply module.
The aircraft device also comprises a main loop aircraft device and a power supply contact aircraft device, wherein the main loop aircraft device is respectively connected with the loop resistance test execution module, the switching characteristic test execution module and the insulation resistance test execution module, and the power supply contact aircraft device is respectively connected with the program-controlled direct-current power supply test execution module, the program-controlled wet contact, the program-controlled short-circuit contact and the on-off detection channel.
The loop resistance test execution module can comprise a first current circuit, a second current circuit, a first voltage circuit, a second voltage circuit, a first relay, a second relay and a third relay, wherein a coil of the first relay, a coil of the second relay and a coil of the third relay are connected with the control module;
the current circuit I comprises a first relay normally-open contact, a first second relay normally-open contact and a first third relay normally-open contact, the input ends of the first relay normally-open contact, the first second relay normally-open contact and the first third relay normally-open contact are connected with the loop resistance testing module, and the output ends of the first relay normally-open contact, the first second relay normally-open contact and the first third relay normally-open contact are connected with the main loop aviation device;
the current circuit II comprises a first relay normally-open contact II, a second relay normally-open contact II and a third relay normally-open contact II, the input ends of the first relay normally-open contact II, the second relay normally-open contact II and the third relay normally-open contact II are connected with the main loop aviation device, and the output ends of the first relay normally-open contact II, the second relay normally-open contact II and the third relay normally-open contact II are connected with the loop resistance testing module;
The first voltage circuit comprises a third normally-open contact of the first relay, a third normally-open contact of the second relay and a third normally-open contact of the third relay, the input ends of the third normally-open contact of the first relay, the third normally-open contact of the second relay and the third normally-open contact of the third relay are connected with the loop resistance testing module, and the output ends of the third normally-open contact of the first relay, the third normally-open contact of the second relay and the third normally-open contact of the third relay are connected with the main loop aviation device;
and the second voltage circuit comprises a fourth first relay normally-open contact, a fourth second relay normally-open contact and a fourth third relay normally-open contact, the input ends of the fourth first relay normally-open contact, the fourth second relay normally-open contact and the fourth third relay normally-open contact are connected with the main loop aviation device, and the output ends of the fourth first relay normally-open contact, the fourth second relay normally-open contact and the fourth third relay normally-open contact are connected with the loop resistance testing module.
The switch characteristic test execution module can comprise a fourth relay, a fifth relay, a sixth relay, a first normally-open contact of the fourth relay, a first normally-open contact of the fifth relay, a first normally-open contact of the sixth relay and a reference voltage signal circuit, wherein a coil of the fourth relay, a coil of the fifth relay and a coil of the sixth relay are all connected with the control module, output ends of the first normally-open contact of the fourth relay, the first normally-open contact of the fifth relay and the first normally-open contact of the sixth relay are connected with the main loop aviation device, and input ends of the first normally-open contact of the fourth relay, the first normally-open contact of the fifth relay and the first normally-open contact of the sixth relay are connected with the switch characteristic test module;
The reference voltage signal circuit comprises a fourth relay normally-open contact II, a fifth relay normally-open contact II and a sixth relay normally-open contact II, the output ends of the fourth relay normally-open contact II, the fifth relay normally-open contact II and the sixth relay normally-open contact II are connected with the switch characteristic testing module, and the input ends of the fourth relay normally-open contact II, the fifth relay normally-open contact II and the sixth relay normally-open contact II are connected with the main loop aviation device.
The insulation resistance test execution module can comprise an HV circuit, a grounding circuit, a seventh relay, an eighth relay, a ninth relay, a tenth relay, an eleventh relay, a twelfth relay and a thirteenth relay, wherein a coil of the seventh relay, a coil of the eighth relay, a coil of the ninth relay, a coil of the tenth relay, a coil of the eleventh relay, a coil of the twelfth relay and a coil of the thirteenth relay are connected with the control module;
the HV circuit comprises a seventh relay normally-open contact, an eighth relay normally-open contact and a ninth relay normally-open contact, the input ends of the seventh relay normally-open contact, the eighth relay normally-open contact and the ninth relay normally-open contact are all connected with the insulation resistance testing module, and the output ends of the seventh relay normally-open contact, the eighth relay normally-open contact and the ninth relay normally-open contact are all connected with the main loop aviation device;
The ground circuit includes that tenth relay normally opens the contact, eleventh relay normally opens the contact, twelfth relay normally opens the contact and thirteenth relay normally opens the contact, tenth relay normally opens the contact, eleventh relay normally opens the contact, the input of twelfth relay normally opens the contact and thirteenth relay normally opens the contact all is connected with main loop aviation device, tenth relay normally opens the contact, eleventh relay normally opens the contact, the output of twelfth relay normally opens the contact and thirteenth relay normally opens the contact all is connected with insulation resistance test module.
Above-mentioned programme-controlled DC power supply execution module can include the fourteenth relay, the fourteenth relay normally opens contact one and the fourteenth relay normally opens contact two, the coil and the control module of fourteenth relay are connected, the input and the programme-controlled DC power supply module of the fourteenth relay normally open contact one are connected, the output and the input of power connection aviation device of the fourteenth electrical apparatus normally open contact one are connected, the input and the output of power connection aviation device of the fourteenth electrical apparatus normally open contact two are connected, the output and the programme-controlled DC power supply module of the fourteenth relay normally open contact are connected.
According to the utility model, the detection module and the execution module are connected with the control module, when a tested object is detected, the corresponding detection item can be completed only by connecting the tested object with the execution module and controlling the corresponding execution module to act by the control module, so that the detection is performed without disconnecting wires for many times, the investigation efficiency is improved, and the problem of low investigation efficiency caused by the fact that the conventional low-voltage switch daily equipment is manually inspected and operated by manpower and the inspection is performed by a wiring disconnection test for many times is solved.
Drawings
Fig. 1 is a schematic circuit diagram according to an embodiment of the present invention.
The codes in the figures are respectively: k11 is first relay normally open contact, K12 is second first relay normally open contact, K13 is third first relay normally open contact, K14 is fourth first relay normally open contact, K21 is first second relay normally open contact, K22 is second relay normally open contact, K23 is third second relay normally open contact, K24 is fourth second relay normally open contact, K31 is first third relay normally open contact, K32 is second third relay normally open contact, K33 is third relay normally open contact, K34 is fourth third relay normally open contact, K41 is fourth relay normally open contact one, K42 is second fourth relay normally open contact, K51 is first fifth relay normally open contact, K52 is second fifth relay normally open contact, K61 is first sixth relay normally open contact, K62 is second sixth relay normally open contact, HV1 is seventh relay normally open contact, HV2 is eighth relay normally open contact, HV3 is ninth relay normally open contact, and G1 is tenth relay normally open contact, and G2 is eleventh relay normally open contact, and G3 is twelfth relay normally open contact, and G4 is thirteenth relay normally open contact, and S1 is fourteenth relay normally open contact one, and S2 is fourteenth relay normally open contact two.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
The utility model is further described with reference to the following examples and figures:
as shown in fig. 1, the intelligent detection system for the low-voltage switch comprises a control module, a detection module and an execution module;
the detection module comprises a loop resistance test module, a switching characteristic test module, an insulation resistance test module and a power supply module;
the execution module comprises a loop resistance test execution module, a switch characteristic test execution module, an insulation resistance test execution module and a power supply execution module;
the circuit resistance testing module is connected with the circuit resistance testing execution module, the switch characteristic testing module is connected with the switch characteristic testing execution module, the insulation resistance testing module is connected with the insulation resistance testing execution module, and the power supply module is connected with the power supply execution module;
the control module is respectively connected with the loop resistance test module, the switch characteristic test module, the insulation resistance test module, the power supply module, the loop resistance test execution module, the switch characteristic test execution module, the insulation resistance test execution module and the power supply execution module.
The control module is used for controlling the corresponding execution module to act, receiving the test data output by the corresponding detection module and outputting the test data; the power supply module is used for providing required power supply for the tested product; the switch characteristic testing module can be a switch characteristic tester and is used for testing the switch characteristic; the loop resistance testing module can be a loop resistance tester and is used for testing loop resistance; the insulation resistance test module can be an insulation resistance tester and is used for testing insulation resistance.
During the use, can be with control module and outside host computer connection, be connected execution module and the article that is tested (the article that is tested in the utility model is low voltage switch), carry out the return circuit resistance test of the article that is tested, switch characteristic test and insulation resistance test, specifically include:
1. and (3) loop resistance testing: the upper computer outputs a loop resistance test instruction to the control module, the control module controls the loop resistance test execution module to act according to the loop resistance test instruction of the upper computer, so that a connecting circuit between the loop resistance test module and a tested product is conducted, the loop resistance test module receives loop resistance test data of the tested product and outputs the loop resistance test data to the control module, and the control module outputs the loop resistance test data to the upper computer to complete loop resistance test;
2. Testing the switching characteristic: the upper computer outputs a switching characteristic test instruction to the control module, the control module controls the switching characteristic test execution module to act according to the switching characteristic test instruction of the upper computer, so that a connecting circuit between the switching characteristic test module and a tested product is conducted, the switching characteristic test module receives switching characteristic test data of the tested product and outputs the switching characteristic test data to the control module, and the control module outputs the switching characteristic test data to the upper computer to complete the switching characteristic test of the tested product;
3. and (3) testing the insulation resistance: the upper computer outputs an insulation resistance test instruction to the control module, the control module controls the insulation resistance test execution module to act according to the insulation resistance test instruction of the upper computer, so that a connecting circuit between the insulation resistance test module and a tested product is conducted, the insulation resistance test module receives insulation resistance test data of the tested product and outputs the insulation resistance test data to the control module, and the control module outputs the insulation resistance test data to the upper computer to complete insulation resistance test of the tested product.
The upper computer sends an instruction to the control module, and the process of receiving the instruction and executing the instruction by the control module comprises the following steps:
The upper computer outputs a starting instruction to the control module for testing;
the control module starts a test, if the control module starts the test, the test task queue is listed, wherein the test task queue comprises a loop resistance test, a switch characteristic test and an insulation resistance test, and if the control module does not start the test, a waiting instruction is output;
the control module selects a test queue, calls the corresponding test task to test, sequentially carries out a plurality of test tasks, returns to test again if the corresponding test task is not completed, outputs an instruction whether the test task queue is empty if the corresponding test task test is completed, outputs a completion instruction if the test task queue in the control module is empty, and returns to the control module to start a test stage and restart if the test task queue in the control module is empty.
In summary, the detection module and the execution module are connected with the control module, when a tested object is detected, the tested object is only required to be connected with the execution module, and the control module controls the corresponding execution module to act, so that the corresponding detection item can be completed, the detection is performed without disassembling the wires for many times, the troubleshooting efficiency is improved, and the problem that the troubleshooting efficiency is low when the conventional low-voltage switch daily equipment is manually repaired and operated and needs to be detected by a wiring and wire disassembling test for many times is solved.
The intelligent detection system for the low-voltage switch can be further optimized or/and improved according to actual needs:
as shown in fig. 1, the power module includes a program-controlled dc power module, a 24V dc power module and a 48V dc power module, the power execution module includes a program-controlled dc power execution module, a program-controlled wet contact, a program-controlled short contact and an on-off detection channel, the program-controlled dc power module is connected to the program-controlled dc power execution module, the 24V dc power module and the 48V dc power module are both connected to the program-controlled wet contact, and the on-off detection channel is connected to the 24V dc power module.
The program-controlled wet contact, the program-controlled short-circuit contact and the on-off detection channel can be provided with 6 pairs, and 6 pairs of ports of the tested object can be connected through one-time wiring; the program-controlled wet contact is connected with the port of the tested object and used for providing 24V or 48V voltage for the port of the tested object; the program-controlled short-circuit contact is connected with the two ports of the tested object and used for short-circuit connection of the two ports of the tested object so as to meet the short-circuit requirement of the ports of the tested object; the on-off detection channel is connected with the port of the tested object, and detects whether the pair of ports connected with the tested object are communicated.
As shown in the attached figure 1, the test device further comprises a main loop aviation device and a power supply contact aviation device, wherein the main loop aviation device is respectively connected with a loop resistance test execution module, a switching characteristic test execution module and an insulation resistance test execution module, and the power supply contact aviation device is respectively connected with a program-controlled direct-current power supply test execution module, a program-controlled wet contact, a program-controlled short-circuit contact and an on-off detection channel.
The main loop aviation device and the power contact aviation device can respectively comprise a plug and a connecting wire, the plugs are respectively connected to two ends of the connecting wire, one end of the plug is connected with the execution module during use, and the other end of the plug is connected with a tested product.
As shown in fig. 1, the loop resistance test execution module includes a first current circuit, a second current circuit, a first voltage circuit, a second voltage circuit, a first relay, a second relay and a third relay, wherein a coil of the first relay, a coil of the second relay and a coil of the third relay are all connected with the control module;
the first current circuit comprises a first relay normally-open contact K11, a second relay normally-open contact K21 and a third relay normally-open contact K31, the input ends of the first relay normally-open contact K11, the second relay normally-open contact K21 and the third relay normally-open contact K31 are connected with the loop resistance testing module, and the output ends of the first relay normally-open contact K11, the second relay normally-open contact K21 and the third relay normally-open contact K31 are connected with the main loop aviation device;
the current circuit II comprises a first relay normally-open contact two K12, a second relay normally-open contact two K22 and a third relay normally-open contact two K32, the input ends of the first relay normally-open contact two K12, the second relay normally-open contact two K22 and the third relay normally-open contact two K32 are connected with the main loop aviation device, and the output ends of the first relay normally-open contact two K12, the second relay normally-open contact two K22 and the third relay normally-open contact two K32 are connected with the loop resistance testing module;
The first voltage circuit comprises a first relay normally-open contact three K13, a second relay normally-open contact three K23 and a third relay normally-open contact three K33, the input ends of the first relay normally-open contact three K13, the second relay normally-open contact three K23 and the third relay normally-open contact three K33 are connected with the loop resistance testing module, and the output ends of the first relay normally-open contact three K13, the second relay normally-open contact three K23 and the third relay normally-open contact three K33 are connected with the main loop aviation device;
voltage circuit two includes that first relay normally opens contact four K14, second relay normally opens contact four K24 and third relay normally opens contact four K34, first relay normally opens contact four K14, second relay normally opens contact four K24 and third relay normally opens contact four K34's input and main loop aviation device connection, first relay normally opens contact four K14, second relay normally opens contact four K24 and third relay normally open contact four K34's output and loop resistance test module connection.
The loop resistance test execution module may execute the loop resistance test, and the loop resistance test execution module may execute an a-phase loop resistance test, the loop resistance test execution module executes a B-phase loop resistance test, and the loop resistance test execution module executes a C-phase loop resistance test, specifically:
1. And (3) testing the resistance of the A-phase loop: the output with major loop aerial device presss from both sides respectively on two A looks ports of by the test article, host computer output A looks return circuit resistance test instruction to control module, control module obtains the electricity according to the coil of the first relay of instruction control of host computer and carries out A phase current test and A looks voltage test, and obtain the current data and the voltage data of by the test article, export current data and voltage data to the host computer, the host computer obtains the A looks return circuit resistance data of by the test article through the calculation (wherein, the A phase current return circuit of return circuit resistance test is constituteed to current circuit one and current circuit two, the A looks return circuit of return circuit resistance test is constituteed to voltage circuit one and voltage circuit two), specifically include:
(1) and (3) testing the phase A current: a coil of the first relay is electrified, so that a first relay normally-open contact K11 and a second relay normally-open contact K12 are closed, an A-phase current loop is conducted, a loop resistance testing module obtains A-phase current data of a tested product and outputs the A-phase current data to a control module, and the control module outputs the A-phase current data to an upper computer;
(2) testing of A phase voltage: the coil of the first relay is electrified, so that a first relay normally-open contact three K13 and a first relay normally-open contact four K14 are closed, an A-phase voltage loop is conducted, the loop resistance testing module obtains A-phase voltage data of a tested product and outputs the A-phase voltage data to the control module, and the control module outputs the A-phase voltage data to the upper computer;
2. B phase loop resistance test: press from both sides main loop aerial device's output respectively on two B looks ports of the article of being tested, host computer output B looks return circuit resistance test instruction to control module, control module is according to the coil of the instruction control second relay of host computer to get electricity and is carried out B phase current test and B looks voltage test, and obtain the current data and the voltage data of the article of being tested, export current data and voltage data to the host computer, the host computer obtains the B looks return circuit resistance data of the article of being tested through the calculation (wherein, the B phase current return circuit of return circuit resistance test is constituteed to current circuit one and current circuit two, the B looks return circuit of return circuit resistance test is constituteed to voltage circuit one and voltage circuit two), specifically include:
(1) b-phase current test: a coil of the second relay is electrified, so that a first normally open contact K21 of the second relay and a second normally open contact K22 of the second relay are closed, a B-phase current loop is conducted, a loop resistance testing module obtains B-phase current data of a tested product and outputs the B-phase current data to a control module, and the control module outputs the B-phase current data to an upper computer;
(2) b-phase voltage test: a coil of the second relay is electrified, so that a second relay normally-open contact three K23 and a second relay normally-open contact four K24 are closed, a B-phase voltage circuit is conducted, a loop resistance testing module obtains B-phase voltage data of a tested product and outputs the B-phase voltage data to a control module, and the control module outputs the B-phase voltage data to an upper computer;
3. C-phase loop resistance test: press from both sides main loop aerial device's output respectively on two C looks ports of the article of being tested, host computer output C looks return circuit resistance test instruction to control module, control module obtains the electricity according to the coil of the instruction control third relay of host computer and carries out C phase current test and C looks voltage test, and obtain the current data and the voltage data of the article of being tested, export current data and voltage data to the host computer, the host computer obtains the C looks return circuit resistance data of the article of being tested through the calculation (wherein, the C phase current return circuit of return circuit resistance test is constituteed to current circuit one and current circuit two, the C looks return circuit of return circuit resistance test is constituteed to voltage circuit one and voltage circuit two), specifically include:
(1) c-phase current test: a coil of the third relay is electrified, so that a first normally open contact K31 of the third relay and a second normally open contact K32 of the third relay are closed, a C-phase current loop is conducted, C-phase current data of a tested product are obtained by the loop resistance testing module and are output to the control module, and the control module outputs the C-phase current data to the upper computer;
(2) c-phase voltage test: the coil of the third relay is electrified, so that the normally-open contact three K33 of the third relay and the normally-open contact four K34 of the third relay are closed, a C-phase voltage loop is conducted, the loop resistance testing module obtains C-phase voltage data of a tested product and outputs the C-phase voltage data to the control module, and the control module outputs the C-phase voltage data to the upper computer.
As shown in fig. 1, the switching characteristic test execution module includes a fourth relay, a fifth relay, a sixth relay, a fourth relay normally-open contact one K41, a fifth relay normally-open contact one K51, a sixth relay normally-open contact one K61 and a reference voltage signal circuit, a coil of the fourth relay, a coil of the fifth relay and a coil of the sixth relay are all connected with the control module, output ends of the fourth relay normally-open contact one K41, the fifth relay normally-open contact one K51 and the sixth relay first normally-open contact one K61 are connected with the main circuit aviation device, and input ends of the fourth relay normally-open contact one K41, the fifth relay normally-open contact one K51 and the sixth relay normally-open contact one K61 are connected with the switching characteristic test module;
reference voltage signal circuit includes that fourth relay normally opens contact two K42, fifth relay normally opens contact two K52 and sixth relay normally opens contact two K62, fourth relay normally opens contact two K42, fifth relay normally opens contact two K52 and sixth relay normally opens contact two K62's output and switching characteristic test module and is connected, fourth relay normally opens contact two K42, fifth relay normally opens contact two K52 and sixth relay normally opens contact two K62's input and main loop aviation device connection.
The switch characteristic test execution module can realize the opening and closing synchronous test of the three-phase loop of the tested object, and specifically comprises:
1. and B, switching-on and switching-off test of the phase A loop: the upper computer outputs an A-phase circuit opening and closing test instruction to the control module, the control module controls a coil of the fourth relay to be electrified according to the instruction of the upper computer, so that a first normally-open contact K41 of the fourth relay and a second normally-open contact K42 of the fourth relay are closed, a connecting circuit between the A-phase contact of the switching characteristic test module and an A-phase of the main circuit aviation device is conducted, the switching characteristic test module receives data of an A-phase circuit opening and closing test at the moment and outputs the data to the control module, and the control module outputs the data of the A-phase circuit opening and closing test to the upper computer to complete the A-phase circuit opening and closing test;
2. b phase loop opening and closing test: the upper computer outputs a B-phase circuit opening and closing test instruction to the control module, the control module controls a coil of the fifth relay to be electrified according to the instruction of the upper computer, so that a first normally open contact K51 of the fifth relay and a second normally open contact K52 of the fifth relay are closed, a connecting circuit between a B-phase contact of the switching characteristic test module and a B-phase of the main circuit aviation device is conducted, the switching characteristic test module receives data of the B-phase circuit opening and closing test at the moment and outputs the data to the control module, and the control module outputs the data of the B-phase circuit opening and closing test to the upper computer to complete the B-phase circuit opening and closing test;
3. C-phase loop opening and closing test: the upper computer outputs a C-phase circuit opening and closing test instruction to the control module, the control module controls a coil of the sixth relay to be electrified according to the instruction of the upper computer, the sixth relay normally-open contact K61 and the sixth relay normally-open contact two K62 are closed, a connecting circuit between the C-phase contact of the switching characteristic test module and a C-phase of the main circuit aviation device is conducted, the switching characteristic test module receives data of the C-phase circuit opening and closing test at the moment and outputs the data to the control module, and the control module outputs the data of the C-phase circuit opening and closing test to the upper computer to complete the C-phase circuit opening and closing test.
As shown in fig. 1, the insulation resistance test execution module includes an HV circuit, a ground circuit, a seventh relay, an eighth relay, a ninth relay, a tenth relay, an eleventh relay, a twelfth relay, and a thirteenth relay, wherein a coil of the seventh relay, a coil of the eighth relay, a coil of the ninth relay, a coil of the tenth relay, a coil of the eleventh relay, a coil of the twelfth relay, and a coil of the thirteenth relay are all connected to the control module;
the HV circuit comprises a seventh relay normally-open contact HV1, an eighth relay normally-open contact HV2 and a ninth relay normally-open contact HV3, the input ends of the seventh relay normally-open contact HV1, the eighth relay normally-open contact HV2 and the ninth relay normally-open contact HV3 are all connected with the insulation resistance testing module, and the output ends of the seventh relay normally-open contact HV1, the eighth relay normally-open contact HV2 and the ninth relay normally-open contact HV3 are all connected with the main loop aviation device;
The ground circuit includes tenth relay normally open contact G1, eleventh relay normally open contact G2, twelfth relay normally open contact G3 and thirteenth relay normally open contact G4, tenth relay normally open contact G1, eleventh relay normally open contact G2, twelfth relay normally open contact G3 and thirteenth relay normally open contact G4's input all is connected with the major loop aircraft device, tenth relay normally open contact G1, eleventh relay normally open contact G2, twelfth relay normally open contact G3 and thirteenth relay normally open contact G4's output all is connected with insulation resistance test module.
The insulation resistance test execution module can realize insulation resistance tests of A phase and B phase, B phase and C phase, ABC phase and grounding, and specifically comprises the following steps:
1. and (3) testing the insulation resistance of the phase A and the phase B: the upper computer outputs insulation resistance test instructions of the A phase and the B phase to the control module, the control module controls coils of the seventh relay and the eleventh relay to be electrified according to the instructions of the upper computer, so that a seventh relay normally-open contact HV1 and an eleventh relay normally-open contact G2 are closed, a connecting circuit between the HV contact of the insulation resistance test module and the A phase of the main loop aviation device is conducted, a connecting circuit between a grounding contact of the insulation resistance test module and the B phase of the main loop aviation device is conducted, the insulation resistance test module receives insulation resistance data of the A phase and the B phase at the moment and outputs the insulation resistance data to the control module, the control module outputs the insulation resistance data of the A phase and the B phase to the upper computer, and insulation resistance test of the A phase and the B phase is completed;
2. And (3) testing the insulation resistance of the B phase and the C phase: the upper computer outputs insulation resistance test instructions of B phase and C phase to the control module, the control module controls coils of an eighth relay and a twelfth relay to be electrified according to the instructions of the upper computer, so that a normally open contact HV2 of the eighth relay and a normally open contact G3 of the twelfth relay are closed, a connecting circuit between the HV contact of the insulation resistance test module and the B phase of the main loop aviation device is conducted, a connecting circuit between a grounding contact of the insulation resistance test module and the C phase of the main loop aviation device is conducted, the insulation resistance test module receives insulation resistance data of the B phase and the C phase at the moment and outputs the insulation resistance data to the control module, and the control module outputs the insulation resistance data of the B phase and the C phase to the upper computer to complete insulation resistance test of the B phase and the C phase;
3. testing the insulation resistance of the ABC three phases and the grounding: the upper computer outputs an insulation resistance test command of ABC three phases and grounding to the control module, the control module controls coils of the seventh relay, the eighth relay, the ninth relay and the thirteenth relay to be electrified according to the command of the upper computer, so that a seventh relay normally-open contact HV1, an eighth relay normally-open contact HV2, a ninth relay normally-open contact HV3 and a thirteenth relay normally-open contact G4 are closed, a connecting circuit between the HV contact of the insulation resistance test module and the ABC three phases of the main loop aviation device is conducted, a connecting circuit between the grounding contact of the insulation resistance test module and the grounding of the main loop aviation device is conducted, the insulation resistance test module receives insulation resistance data of the ABC three phases and the grounding at the moment, and the data of the ABC three phases and the insulation resistance of the grounding are output to a control module, and the control module outputs the data of the ABC three phases and the insulation resistance of the grounding to an upper computer to complete the insulation resistance test of the ABC three phases and the grounding.
As shown in fig. 1, the program-controlled dc power supply execution module includes a fourteenth relay, a fourteenth relay normally-open contact S1 and a fourteenth relay normally-open contact two S2, a coil of the fourteenth relay is connected with the control module, an input end of a fourteenth relay normally-open contact S1 is connected with the program-controlled dc power supply module, an output end of a fourteenth electrical appliance normally-open contact one is connected with an input end of the power contact aviation device, an input end of a fourteenth electrical appliance normally-open contact two is connected with an output end of the power contact aviation device, and an output end of a fourteenth relay normally-open contact is connected with the program-controlled dc power supply module.
When the power supply testing device is used, the power supply contact aviation device is connected with a port which needs to be supplied with power by a tested product, the power supply voltage needed by the tested product is different (wherein the power supply voltage can be 110V, 125V and 220V), the upper computer outputs a corresponding power supply voltage instruction to the control module, the control module controls a coil of the fourteenth relay to be electrified according to the power supply voltage instruction of the upper computer, the first normally-open contact S1 of the fourteenth relay and the second normally-open contact S2 of the fourteenth relay are closed, a connecting line of the program-controlled direct-current power supply module and the power supply contact aviation device is conducted, the program-controlled direct-current power supply module tests the current of the tested product corresponding to the voltage at the moment and outputs the current to the control module, the control module outputs the current of the tested product under the voltage to the upper computer, and completes the power supply test of the tested product.
The technical characteristics form the embodiment of the utility model, the embodiment has strong adaptability and implementation effect, and unnecessary technical characteristics can be increased or decreased according to actual requirements to meet the requirements of different situations.
Claims (14)
1. The intelligent detection system for the low-voltage switch is characterized by comprising a control module, a detection module and an execution module;
the detection module comprises a loop resistance test module, a switching characteristic test module, an insulation resistance test module and a power supply module;
the execution module comprises a loop resistance test execution module, a switch characteristic test execution module, an insulation resistance test execution module and a power supply execution module;
the circuit resistance testing module is connected with the circuit resistance testing execution module, the switch characteristic testing module is connected with the switch characteristic testing execution module, the insulation resistance testing module is connected with the insulation resistance testing execution module, and the power supply module is connected with the power supply execution module;
the control module is respectively connected with the loop resistance test module, the switch characteristic test module, the insulation resistance test module, the power supply module, the loop resistance test execution module, the switch characteristic test execution module, the insulation resistance test execution module and the power supply execution module.
2. The intelligent detection system for the low-voltage switch according to claim 1, wherein the power supply module comprises a program-controlled direct-current power supply module, a 24V direct-current power supply module and a 48V direct-current power supply module, the power supply execution module comprises a program-controlled direct-current power supply execution module, a program-controlled wet contact, a program-controlled short-circuit contact and an on-off detection channel, the program-controlled direct-current power supply module is connected with the program-controlled direct-current power supply execution module, the 24V direct-current power supply module and the 48V direct-current power supply module are both connected with the program-controlled wet contact, and the on-off detection channel is connected with the 24V direct-current power supply module.
3. The intelligent detection system for the low-voltage switch according to claim 1 or 2, further comprising a main loop aviation device and a power supply contact aviation device, wherein the main loop aviation device is respectively connected with the loop resistance test execution module, the switch characteristic test execution module and the insulation resistance test execution module, and the power supply contact aviation device is respectively connected with the program-controlled direct-current power supply test execution module, the program-controlled wet contact, the program-controlled short contact and the on-off detection channel.
4. The intelligent detection system for the low-voltage switch according to claim 1 or 2, wherein the loop resistance test execution module comprises a first current circuit, a second current circuit, a first voltage circuit, a second voltage circuit, a first relay, a second relay and a third relay, and a coil of the first relay, a coil of the second relay and a coil of the third relay are connected with the control module;
The current circuit I comprises a first relay normally-open contact, a first second relay normally-open contact and a first third relay normally-open contact, the input ends of the first relay normally-open contact, the first second relay normally-open contact and the first third relay normally-open contact are connected with the loop resistance testing module, and the output ends of the first relay normally-open contact, the first second relay normally-open contact and the first third relay normally-open contact are connected with the main loop aviation device;
the current circuit II comprises a first relay normally-open contact II, a second relay normally-open contact II and a third relay normally-open contact II, the input ends of the first relay normally-open contact II, the second relay normally-open contact II and the third relay normally-open contact II are connected with the main loop aviation device, and the output ends of the first relay normally-open contact II, the second relay normally-open contact II and the third relay normally-open contact II are connected with the loop resistance testing module;
the first voltage circuit comprises a third normally-open contact of the first relay, a third normally-open contact of the second relay and a third normally-open contact of the third relay, the input ends of the third normally-open contact of the first relay, the third normally-open contact of the second relay and the third normally-open contact of the third relay are connected with the loop resistance testing module, and the output ends of the third normally-open contact of the first relay, the third normally-open contact of the second relay and the third normally-open contact of the third relay are connected with the main loop aviation device;
And the second voltage circuit comprises a fourth first relay normally-open contact, a fourth second relay normally-open contact and a fourth third relay normally-open contact, the input ends of the fourth first relay normally-open contact, the fourth second relay normally-open contact and the fourth third relay normally-open contact are connected with the main loop aviation device, and the output ends of the fourth first relay normally-open contact, the fourth second relay normally-open contact and the fourth third relay normally-open contact are connected with the loop resistance testing module.
5. The intelligent detection system for the low-voltage switch according to claim 3, wherein the loop resistance test execution module comprises a first current circuit, a second current circuit, a first voltage circuit, a second voltage circuit, a first relay, a second relay and a third relay, and a coil of the first relay, a coil of the second relay and a coil of the third relay are all connected with the control module;
the current circuit I comprises a first relay normally-open contact, a first second relay normally-open contact and a first third relay normally-open contact, the input ends of the first relay normally-open contact, the first second relay normally-open contact and the first third relay normally-open contact are connected with the loop resistance testing module, and the output ends of the first relay normally-open contact, the first second relay normally-open contact and the first third relay normally-open contact are connected with the main loop aviation device;
The current circuit II comprises a first relay normally-open contact II, a second relay normally-open contact II and a third relay normally-open contact II, the input ends of the first relay normally-open contact II, the second relay normally-open contact II and the third relay normally-open contact II are connected with the main loop aviation device, and the output ends of the first relay normally-open contact II, the second relay normally-open contact II and the third relay normally-open contact II are connected with the loop resistance testing module;
the first voltage circuit comprises a third normally-open contact of the first relay, a third normally-open contact of the second relay and a third normally-open contact of the third relay, the input ends of the third normally-open contact of the first relay, the third normally-open contact of the second relay and the third normally-open contact of the third relay are connected with the loop resistance testing module, and the output ends of the third normally-open contact of the first relay, the third normally-open contact of the second relay and the third normally-open contact of the third relay are connected with the main loop aviation device;
and the second voltage circuit comprises a fourth first relay normally-open contact, a fourth second relay normally-open contact and a fourth third relay normally-open contact, the input ends of the fourth first relay normally-open contact, the fourth second relay normally-open contact and the fourth third relay normally-open contact are connected with the main loop aviation device, and the output ends of the fourth first relay normally-open contact, the fourth second relay normally-open contact and the fourth third relay normally-open contact are connected with the loop resistance testing module.
6. The intelligent detection system for the low-voltage switch according to claim 1, 2 or 5, characterized in that the switching characteristic test execution module comprises a fourth relay, a fifth relay, a sixth relay, a first normally-open contact of the fourth relay, a first normally-open contact of the fifth relay, a first normally-open contact of the sixth relay and a reference voltage signal circuit, wherein a coil of the fourth relay, a coil of the fifth relay and a coil of the sixth relay are all connected with the control module, output ends of the first normally-open contact of the fourth relay, the first normally-open contact of the fifth relay and the first normally-open contact of the sixth relay are connected with the main loop aviation device, and input ends of the first normally-open contact of the fourth relay, the first normally-open contact of the fifth relay and the first normally-open contact of the sixth relay are connected with the switching characteristic test module;
the reference voltage signal circuit comprises a fourth relay normally-open contact II, a fifth relay normally-open contact II and a sixth relay normally-open contact II, the output ends of the fourth relay normally-open contact II, the fifth relay normally-open contact II and the sixth relay normally-open contact II are connected with the switch characteristic testing module, and the input ends of the fourth relay normally-open contact II, the fifth relay normally-open contact II and the sixth relay normally-open contact II are connected with the main loop aviation device.
7. The intelligent detection system for the low-voltage switch according to claim 3, wherein the switching characteristic test execution module comprises a fourth relay, a fifth relay, a sixth relay, a first normally-open contact of the fourth relay, a first normally-open contact of the fifth relay, a first normally-open contact of the sixth relay and a reference voltage signal circuit, a coil of the fourth relay, a coil of the fifth relay and a coil of the sixth relay are all connected with the control module, output ends of the first normally-open contact of the fourth relay, the first normally-open contact of the fifth relay and the first normally-open contact of the sixth relay are connected with the main loop aviation device, and input ends of the first normally-open contact of the fourth relay, the first normally-open contact of the fifth relay and the first normally-open contact of the sixth relay are connected with the switching characteristic test module;
the reference voltage signal circuit comprises a fourth relay normally-open contact II, a fifth relay normally-open contact II and a sixth relay normally-open contact II, the output ends of the fourth relay normally-open contact II, the fifth relay normally-open contact II and the sixth relay normally-open contact II are connected with the switch characteristic testing module, and the input ends of the fourth relay normally-open contact II, the fifth relay normally-open contact II and the sixth relay normally-open contact II are connected with the main loop aviation device.
8. The intelligent detection system for the low-voltage switch according to claim 4, characterized in that the switching characteristic test execution module comprises a fourth relay, a fifth relay, a sixth relay, a first normally-open contact of the fourth relay, a first normally-open contact of the fifth relay, a first normally-open contact of the sixth relay and a reference voltage signal circuit, wherein a coil of the fourth relay, a coil of the fifth relay and a coil of the sixth relay are all connected with the control module, output ends of the first normally-open contact of the fourth relay, the first normally-open contact of the fifth relay and the first normally-open contact of the sixth relay are connected with the main loop aviation device, and input ends of the first normally-open contact of the fourth relay, the first normally-open contact of the fifth relay and the first normally-open contact of the sixth relay are connected with the switching characteristic test module;
the reference voltage signal circuit comprises a fourth relay normally-open contact II, a fifth relay normally-open contact II and a sixth relay normally-open contact II, the output ends of the fourth relay normally-open contact II, the fifth relay normally-open contact II and the sixth relay normally-open contact II are connected with the switch characteristic testing module, and the input ends of the fourth relay normally-open contact II, the fifth relay normally-open contact II and the sixth relay normally-open contact II are connected with the main loop aviation device.
9. The intelligent detection system for the low-voltage switch according to claim 1, 2, 5, 7 or 8, characterized in that the insulation resistance test execution module comprises an HV circuit, a grounding circuit, a seventh relay, an eighth relay, a ninth relay, a tenth relay, an eleventh relay, a twelfth relay and a thirteenth relay, wherein a coil of the seventh relay, a coil of the eighth relay, a coil of the ninth relay, a coil of the tenth relay, a coil of the eleventh relay, a coil of the twelfth relay and a coil of the thirteenth relay are all connected with the control module;
the HV circuit comprises a seventh relay normally-open contact, an eighth relay normally-open contact and a ninth relay normally-open contact, the input ends of the seventh relay normally-open contact, the eighth relay normally-open contact and the ninth relay normally-open contact are all connected with the insulation resistance testing module, and the output ends of the seventh relay normally-open contact, the eighth relay normally-open contact and the ninth relay normally-open contact are all connected with the main loop aviation device;
the ground circuit includes that tenth relay normally opens the contact, eleventh relay normally opens the contact, twelfth relay normally opens the contact and thirteenth relay normally opens the contact, tenth relay normally opens the contact, eleventh relay normally opens the contact, the input of twelfth relay normally opens the contact and thirteenth relay normally opens the contact all is connected with main loop aviation device, tenth relay normally opens the contact, eleventh relay normally opens the contact, the output of twelfth relay normally opens the contact and thirteenth relay normally opens the contact all is connected with insulation resistance test module.
10. The intelligent detection system for the low-voltage switch according to claim 1, 2, 5, 7 or 8, wherein the program-controlled DC power supply execution module comprises a fourteenth relay, a fourteenth relay normally-open contact I and a fourteenth relay normally-open contact II, a coil of the fourteenth relay is connected with the control module, an input end of the fourteenth relay normally-open contact I is connected with the program-controlled DC power supply module, an output end of the fourteenth electrical appliance normally-open contact I is connected with an input end of the power contact aviation device, an input end of the fourteenth electrical appliance normally-open contact II is connected with an output end of the power contact aviation device, and an output end of the fourteenth relay normally-open contact is connected with the program-controlled DC power supply module.
11. The intelligent detection system for the low-voltage switch according to claim 3, wherein the program-controlled DC power supply execution module comprises a fourteenth relay, a fourteenth relay normally-open contact I and a fourteenth relay normally-open contact II, a coil of the fourteenth relay is connected with the control module, an input end of the fourteenth relay normally-open contact I is connected with the program-controlled DC power supply module, an output end of the fourteenth electrical appliance normally-open contact I is connected with an input end of the power contact aviation device, an input end of the fourteenth electrical appliance normally-open contact II is connected with an output end of the power contact aviation device, and an output end of the fourteenth relay normally-open contact is connected with the program-controlled DC power supply module.
12. The intelligent low-voltage switch detection system according to claim 4, wherein the program-controlled DC power supply execution module comprises a fourteenth relay, a fourteenth relay normally-open contact I and a fourteenth relay normally-open contact II, a coil of the fourteenth relay is connected with the control module, an input end of the fourteenth relay normally-open contact I is connected with the program-controlled DC power supply module, an output end of the fourteenth electrical appliance normally-open contact I is connected with an input end of the power contact aviation device, an input end of the fourteenth electrical appliance normally-open contact II is connected with an output end of the power contact aviation device, and an output end of the fourteenth relay normally-open contact is connected with the program-controlled DC power supply module.
13. The intelligent detection system for the low-voltage switch according to claim 6, wherein the program-controlled DC power supply execution module comprises a fourteenth relay, a fourteenth relay normally-open contact I and a fourteenth relay normally-open contact II, a coil of the fourteenth relay is connected with the control module, an input end of the fourteenth relay normally-open contact I is connected with the program-controlled DC power supply module, an output end of the fourteenth electrical appliance normally-open contact I is connected with an input end of the power contact aviation device, an input end of the fourteenth electrical appliance normally-open contact II is connected with an output end of the power contact aviation device, and an output end of the fourteenth relay normally-open contact is connected with the program-controlled DC power supply module.
14. The intelligent detection system for the low-voltage switch according to claim 9, wherein the program-controlled direct-current power supply execution module comprises a fourteenth relay, a fourteenth relay normally-open contact I and a fourteenth relay normally-open contact II, a coil of the fourteenth relay is connected with the control module, an input end of the fourteenth relay normally-open contact I is connected with the program-controlled direct-current power supply module, an output end of the fourteenth electrical appliance normally-open contact I is connected with an input end of the power contact aviation device, an input end of the fourteenth electrical appliance normally-open contact II is connected with an output end of the power contact aviation device, and an output end of the fourteenth relay normally-open contact is connected with the program-controlled direct-current power supply module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122027567.6U CN216670197U (en) | 2021-08-26 | 2021-08-26 | Low-voltage switch intelligent detection system |
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| CN202122027567.6U CN216670197U (en) | 2021-08-26 | 2021-08-26 | Low-voltage switch intelligent detection system |
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