CN111736021A - Low-voltage large-current real-time electrical testing device - Google Patents
Low-voltage large-current real-time electrical testing device Download PDFInfo
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- CN111736021A CN111736021A CN202010521013.9A CN202010521013A CN111736021A CN 111736021 A CN111736021 A CN 111736021A CN 202010521013 A CN202010521013 A CN 202010521013A CN 111736021 A CN111736021 A CN 111736021A
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 230000000630 rising effect Effects 0.000 claims abstract description 9
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000013522 software testing 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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Abstract
The invention belongs to the technical field of low-voltage electrical appliance testing, and particularly relates to a low-voltage large-current real-time electrical testing device which comprises a shell part and an electrical circuit part, wherein the electrical circuit part is arranged in the shell part and comprises a main shell and four universal wheels, the four universal wheels are arranged at the bottom of the main shell, and the electrical circuit part comprises a circuit breaker, a first fuse, a second fuse, a contactor, a voltage regulator, a large-current generator, a starting button, a stopping button, a current rising button, a current falling button, an emergency stop button, an electronic counter reset button, an electronic timer, a voltmeter, an ammeter and a mutual inductor. The invention adopts the common action of the voltage regulator and the large current generator to realize the regulation of the output large current and provides better safety guarantee for the test of the low-voltage large-current electrical equipment. The invention is used for testing the electrical equipment.
Description
Technical Field
The invention belongs to the technical field of low-voltage electrical appliance testing, and particularly relates to a low-voltage large-current real-time electrical testing device.
Background
The low-voltage large-current real-time electrical testing device is necessary electrical equipment in strong-current places such as electrical maintenance and manufacturing workshops, but the existing electrical testing device has the defects of being heavy, difficult to move, inconvenient to adjust and large in detection and display lag. Need carry out real-time detection and control to the heavy current at the heavy current production in-process, need urgently need more convenient to the regulation mode and the more effective detection instrument of heavy current, improve efficiency of software testing and reduction of erection time.
Disclosure of Invention
Aiming at the technical problems of heavy weight, difficulty in moving, inconvenience in adjustment and large detection and display lag of the electric testing device, the invention provides the low-voltage large-current real-time electric testing device which is convenient to move and high in working efficiency.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a real-time electric testing arrangement of low pressure heavy current, includes casing part, electric circuit part sets up in casing part, casing part includes the main casing body, universal wheel, the universal wheel has four, and four universal wheel settings are in the bottom of the main casing body, electric circuit part includes circuit breaker, first fuse, second fuse, contactor, voltage regulator, heavy current generator, start button, stop button, the button that rises of electric current, the button that falls of electric current, emergency stop button, electronic counter reset button, electronic timer, voltmeter, ampere meter, mutual-inductor, the circuit breaker is connected with the voltage regulator, first fuse is connected with voltage regulator, contactor respectively, the second fuse is connected with voltage regulator, contactor respectively, the contactor is connected with heavy current generator, the normally open contact of the button that rises of electric current is connected respectively at voltage regulator, the normally open contact of voltage regulator, The normally open contact of the current reduction button; the normally open contact of the current reduction button is connected to the voltage regulator; the voltmeter is connected with the voltage regulator; the emergency stop button is connected with the voltmeter and is connected with one end of an adsorption coil of the contactor; the other end of the adsorption coil of the contactor is connected with a normally closed contact of the stop button; the normally closed contact of the stop button is connected with the normally open contact of the start button, and the normally open contact of the start button is connected with the voltmeter; the normally open contact of the contactor is connected in parallel with the normally open contact of the starting button; the electronic timer is respectively connected with two ends of the contactor; the normally open contact of the reset button of the electronic timer is connected with the electronic timer; the mutual inductor is connected to the large current generator; the mutual inductor is connected with the ammeter.
The voltage regulator includes voltage input end No. 1 end, voltage input end No. 2 end, voltage output end No. 3 end, voltage output end No. 4 end, current fall end No. 5 end, current rise end No. 6 end, common port No. 7 end, the both ends of circuit breaker connect respectively on voltage input end No. 1 end and voltage input end No. 2 of voltage regulator serve, first fuse is connected on voltage output end No. 3 of voltage regulator serve, the second fuse is connected on voltage output end No. 4 of voltage regulator serve, the both ends of the normally open contact of current fall button are connected respectively and are served at current fall end No. 5 ends of voltage regulator, common port No. 7, the normally open contact of current rise button is connected and is served at current rise end No. 6 of voltage regulator.
The high-current generator comprises a current input end No. 1 end, a current input end No. 2 end and a current output end No. 4 end, the two ends of the contactor are respectively connected to the current input end No. 1 end and the current input end No. 2 end of the high-current generator, and the mutual inductor is arranged on the current output end No. 4 end of the high-current generator in a penetrating mode.
The voltmeter comprises an input voltage end 1 and an input voltage end 2, wherein the input voltage end 1 and the input voltage end 2 are respectively connected with a voltage input end 1 and a voltage input end 2 of the voltage regulator T1, and the input voltage end 1 of the voltmeter is connected with the emergency stop button.
The mutual inductor includes current signal output part No. 1 end, current signal output part No. 2 end, the ampere meter includes input current end No. 1 end, input current end No. 2 end, current signal output part No. 1 end, current signal output part No. 2 end of mutual inductor are connected with input current end No. 1 end, input current end No. 2 end of ampere meter respectively.
Four universal wheels 2 all are provided with the brake block.
The voltmeter adopts an alternating current voltmeter with the range of 0-250V, and the ammeter adopts an alternating current ammeter with the range of 0-500A.
The main casing body comprises an upper cabinet, a drawer and a lower cabinet, the drawer is arranged between the upper cabinet and the lower cabinet, and the electric circuit part is arranged in the upper cabinet.
The working process of the invention is as follows: before testing, the output side conductive belt of the large-current generator is firstly penetrated in a current transformer of an oil pump motor, a walking motor or a cutting motor of a coal mining machine; the circuit breaker of the electrical circuit section is then closed and the indicator light of the stop button is illuminated. When in test, a start button of the electric circuit part is pressed, an indicator light of the start button is on, and an indicator light of the stop button is off; pressing a current rising button of the electric circuit part, enabling an indicator lamp of the current rising button to be on, enabling current on the conductive belt to rise, displaying the current value on the current conductive belt in real time by an ammeter, adjusting the current value to a required current value, and adjusting the current value to be 0-500A; when a current drop button of the electric circuit part is pressed, the current on the conductive belt drops, the current value displayed on the ammeter drops, and the current value displayed on the ammeter can be adjusted to be 0 at the lowest. The ammeter and the voltmeter can display the current value and the voltage value of the circuit to be measured in real time during the adjustment process. After the start button is pressed, the electronic timer starts to count time, and when the timer needs to be cleared, the time reset button of the electric circuit part can be pressed to clear the time in time and restart the counting.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts the common action of the voltage regulator and the large current generator to realize the regulation of the output large current, provides better safety guarantee for the test of the low-voltage large-current electrical equipment, saves the labor cost compared with the traditional electrical test mode, realizes the real-time data detection, and further improves the efficiency and the quality of the maintenance and the detection of the workshop staff.
Drawings
FIG. 1 is a schematic structural view of a housing portion of the present invention;
FIG. 2 is a schematic diagram of an electrical circuit portion of the present invention;
wherein: 1 is the main casing, 2 is the universal wheel, 11 is the upper cabinet, 12 is the drawer, 13 is the lower cabinet, Q1 is the circuit breaker, FU1 is first fuse, FU2 is the second fuse, KM is the contactor, T1 is the voltage regulator, T2 is heavy current generator, S1 is the start button, S2 is the stop button, S3 is the current rise button, S4 is the current decline button, S5 is the scram button, S6 is electronic timer reset button, TR is the electronic timer, PV is the voltmeter, PA is the ampere meter, TA is the mutual-inductor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A low-voltage large-current real-time electrical testing device is disclosed, as shown in fig. 1 and fig. 2, comprising a shell part and an electrical circuit part, wherein the electrical circuit part is arranged in the shell part, the shell part comprises a main shell 1 and four universal wheels 2, the four universal wheels 2 are arranged at the bottom of the main shell 1, the electrical circuit part comprises a circuit breaker Q1, a first fuse FU1, a second fuse FU2, a contactor KM, a voltage regulator T1, a large-current generator T2, a start button S1, a stop button S2, a current rise button S3, a current fall button S4, an emergency stop button S5, an electronic counter reset button S6, an electronic timer TR, a voltmeter PV, an ammeter PA and a mutual inductor TA, the circuit breaker Q1 is connected with the voltage regulator T1, the first fuse FU1 is respectively connected with the voltage regulator T1 and the contactor KM, the second fuse FU2 is respectively connected with the voltage regulator T1 and the, the contactor KM is connected with a large current generator T2, and the normally open contacts of the current rising button S3 are respectively connected with the normally open contacts of a voltage regulator T1 and a current falling button S4; the normally open contact of the current reduction button S4 is connected to the voltage regulator T1; the voltmeter PV is connected with the voltage regulator T1; the emergency stop button S5 is connected with a voltmeter PV, and the emergency stop button S5 is connected with one end of an adsorption coil of the contactor KM; the other end of the adsorption coil of the contactor KM is connected with a normally closed contact of a stop button S2; the normally closed contact of the stop button S2 is connected with the normally open contact of the start button S1, and the normally open contact of the start button S1 is connected with the voltmeter PV; the normally open contact of the contactor KM is connected in parallel with the normally open contact of the starting button S1; the electronic timer TR is respectively connected with two ends of the contactor KM; the normally open contact of an electronic timer reset button S6 is connected with an electronic timer TR; the transformer TA is connected to the high-current generator T2; and the mutual inductor TA is connected with the ammeter PA. Pressing start button S1; pressing a current rising button S3 to raise the current on the conductive strip, and displaying the current value on the current conductive strip in real time by an ammeter PA to adjust to the required current; when the current drop button S4 is pressed, the current on the conductive strip drops, the current value displayed on the ammeter PA drops, and the current value displayed on the ammeter PA can be adjusted to 0 at the lowest. The ammeter and the voltmeter can display the current value and the voltage value of the circuit to be measured in real time during the adjustment process.
Further, voltage regulator T1 includes voltage input end No. 1 end, voltage input end No. 2 end, voltage output end No. 3 end, voltage output end No. 4 end, current fall end No. 5 end, current rise end No. 6 end, common port No. 7 end, the both ends of circuit breaker Q1 are connected respectively on voltage input end No. 1 end and voltage input end No. 2 end of voltage regulator T1, first fuse FU1 is connected on voltage output end No. 3 end of voltage regulator T1, second fuse FU2 is connected on voltage output end No. 4 end of voltage regulator T1, the both ends of the normally open contact of current fall button S4 are connected respectively on current fall end No. 5 end, common port No. 7 end of voltage regulator T1, the normally open contact of current rise button S3 is connected on current rise end No. 6 end of voltage regulator T1.
Further, the large current generator T2 includes No. 1 end of current input terminal, No. 2 end of current input terminal, No. 4 end of current output terminal, and the both ends of contactor KM are connected respectively on No. 1 end of current input terminal, No. 2 end of current input terminal of large current generator T2, and mutual inductor TA wears on No. 4 end of current output terminal of large current generator T2.
Further, voltmeter PV includes input voltage end No. 1 end, input voltage end No. 2 end, and input voltage end No. 1 end, input voltage end No. 2 end are connected with voltage input No. 1 end and voltage input No. 2 end of voltage regulator T1 respectively, and input voltage end No. 1 end and the scram button S5 of voltmeter PV are connected.
Further, the mutual inductor TA comprises a current signal output end 1 and a current signal output end 2, the ammeter PA comprises an input current end 1 and an input current end 2, and the current signal output end 1 and the current signal output end 2 of the mutual inductor TA are respectively connected with the input current end 1 and the input current end 2 of the ammeter PA.
Further, preferably, four universal wheels 2 are all provided with brake pads for fixing the universal wheels 2 and preventing the universal wheels 2 from sliding during work.
Preferably, the voltmeter PV adopts an alternating current voltmeter with the range of 0-250V, and the ammeter PA adopts an alternating current ammeter with the range of 0-500A.
Further, the main casing 1 includes an upper cabinet 11, a drawer 12, and a lower cabinet 13, the drawer 12 being disposed between the upper cabinet 11 and the lower cabinet 13, and the electric circuit portion being disposed in the upper cabinet 11.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (9)
1. The utility model provides a real-time electric testing arrangement of low pressure heavy current which characterized in that: including housing part, electric circuit part sets up in housing part, housing part includes main casing (1), universal wheel (2) have four, and four universal wheels (2) set up the bottom in main casing (1), electric circuit part includes circuit breaker (Q1), first fuse (FU 1), second fuse (FU 2), contactor (KM), voltage regulator (T1), heavy current generator (T2), start button (S1), stop button (S2), current rise button (S3), current drop button (S4), scram button (S5), electronic counter reset button (S6), electronic Timer (TR), voltmeter (PV), ammeter (PA), mutual-inductor (TA), circuit breaker (Q1) is connected with voltage regulator (T1), first fuse (FU 1) respectively with voltage regulator (T1), The contactor (KM) is connected, the second fuse (FU 2) is respectively connected with the voltage regulator (T1) and the contactor (KM), the contactor (KM) is connected with the high-current generator (T2), and the normally open contact of the current rising button (S3) is respectively connected with the normally open contacts of the voltage regulator (T1) and the current falling button (S4); the normally open contact of the current reduction button (S4) is connected to a voltage regulator (T1); the voltmeter (PV) is connected with a voltage regulator (T1); the emergency stop button (S5) is connected with a voltmeter (PV), and the emergency stop button (S5) is connected with one end of a suction coil of a contactor (KM); the other end of the adsorption coil of the contactor (KM) is connected with a normally closed contact of a stop button (S2); the normally closed contact of the stop button (S2) is connected with the normally open contact of the start button (S1), and the normally open contact of the start button (S1) is connected with a voltmeter (PV); the normally open contact of the contactor (KM) is connected with the normally open contact of the starting button S1 in parallel; the electronic Timer (TR) is respectively connected with two ends of the contactor (KM); the normally open contact of the electronic timer reset button (S6) is connected with the electronic Timer (TR); the Transformer (TA) is connected to a high-current generator (T2); the mutual inductor (TA) is connected with the ammeter (PA).
2. A low voltage high current real time electrical test device according to claim 1, wherein: the voltage regulator (T1) comprises a voltage input end No. 1 end, a voltage input end No. 2 end, a voltage output end No. 3 end, a voltage output end No. 4 end, a current falling end No. 5 end, a current rising end No. 6 end and a common end No. 7 end, the two ends of the breaker (Q1) are respectively connected with the No. 1 end and the No. 2 end of the voltage input end of the voltage regulator (T1), the first fuse (FU 1) is connected to the No. 3 end of the voltage output end of the voltage regulator (T1), the second fuse (FU 2) is connected to the No. 4 end of the voltage output end of the voltage regulator (T1), two ends of a normally open contact of the current reduction button (S4) are respectively connected with the No. 5 end of the current reduction end and the No. 7 end of the common end of the voltage regulator (T1), and the normally open contact of the current rising button (S3) is connected to the No. 6 end of the current rising end of the voltage regulator (T1).
3. A low voltage high current real time electrical test device according to claim 1, wherein: the high-current generator (T2) comprises a current input end 1, a current input end 2 and a current output end 4, the two ends of the contactor (KM) are respectively connected to the current input end 1 and the current input end 2 of the high-current generator (T2), and the mutual inductor (TA) is arranged on the current output end 4 of the high-current generator (T2).
4. A low voltage high current real time electrical test apparatus according to claim 1 or 2, wherein: voltmeter (PV) includes input voltage end No. 1 end, input voltage end No. 2 end, input voltage end No. 1 end, input voltage end No. 2 end of input voltage end are connected with voltage input No. 1 end and the voltage input No. 2 end of voltage regulator (T1) respectively, the input voltage end No. 1 end and the scram button (S5) of voltmeter (PV) are connected.
5. A low voltage high current real time electrical test device according to claim 1, wherein: electronic Timer (TR) includes first voltage input end, second voltage input end, No. 3 ends of reset input end, No. 4 ends of public end that resets, the first voltage input end of electronic Timer (TR), second voltage input end are connected with the both ends of contactor (KM) respectively, electronic timer reset button (S6) normally open contact is connected with No. 3 ends of reset input end, No. 4 ends of public end that resets of electronic Timer (TR) respectively.
6. A low voltage high current real time electrical test device according to claim 1, wherein: mutual-inductor (TA) include current signal output part No. 1 end, current signal output part No. 2 end, ampere meter (PA) includes input current end No. 1 end, input current end No. 2 end, current signal output part No. 1 end, current signal output part No. 2 end of mutual-inductor (TA) are connected with input current end No. 1 end, input current end No. 2 end of ampere meter (PA) respectively.
7. A low voltage high current real time electrical test device according to claim 1, wherein: four universal wheels (2) all are provided with the brake block.
8. A low voltage high current real time electrical test device according to claim 1, wherein: the voltmeter (PV) adopts an alternating current voltmeter with the range of 0-250V, and the ammeter (PA) adopts an alternating current ammeter with the range of 0-500A.
9. A low voltage high current real time electrical test device according to claim 1, wherein: the main casing body (1) comprises an upper cabinet (11), a drawer (12) and a lower cabinet (13), the drawer (12) is arranged between the upper cabinet (11) and the lower cabinet (13), and the electric circuit part is arranged in the upper cabinet (11).
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| CN202010521013.9A CN111736021A (en) | 2020-06-10 | 2020-06-10 | Low-voltage large-current real-time electrical testing device |
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| CN202010521013.9A CN111736021A (en) | 2020-06-10 | 2020-06-10 | Low-voltage large-current real-time electrical testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113485289A (en) * | 2021-06-28 | 2021-10-08 | 华阳新材料科技集团有限公司煤机装备研究院 | Simulation test device and test method for electrical control panel of coal mining machine |
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| CN110850225A (en) * | 2019-12-14 | 2020-02-28 | 阳泉煤业集团华越机械有限公司煤机装备研究院 | Detection test bed and detection method for electric module of roller coal mining machine |
| CN210442457U (en) * | 2019-08-09 | 2020-05-01 | 阳泉煤业（集团）有限责任公司 | Mining electric energy quality detection terminal |
| CN212646840U (en) * | 2020-06-10 | 2021-03-02 | 阳泉煤业(集团)有限责任公司煤机装备研究院 | Low-voltage large-current real-time electrical testing device |
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- 2020-06-10 CN CN202010521013.9A patent/CN111736021A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210442457U (en) * | 2019-08-09 | 2020-05-01 | 阳泉煤业（集团）有限责任公司 | Mining electric energy quality detection terminal |
| CN110850225A (en) * | 2019-12-14 | 2020-02-28 | 阳泉煤业集团华越机械有限公司煤机装备研究院 | Detection test bed and detection method for electric module of roller coal mining machine |
| CN212646840U (en) * | 2020-06-10 | 2021-03-02 | 阳泉煤业(集团)有限责任公司煤机装备研究院 | Low-voltage large-current real-time electrical testing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113485289A (en) * | 2021-06-28 | 2021-10-08 | 华阳新材料科技集团有限公司煤机装备研究院 | Simulation test device and test method for electrical control panel of coal mining machine |
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Country or region after: China Address after: 045000 yard of Yangquan Coal Huading Machinery Co., Ltd., north of Zhanjiang street, East District, Yangquan economic and Technological Development Zone, Shanxi Province Applicant after: Coal machinery equipment Research Institute of Huayang New Material Technology Group Co.,Ltd. Address before: 045000 yard of Yangquan Coal Huading Machinery Co., Ltd., north of Zhanjiang street, East District, Yangquan economic and Technological Development Zone, Shanxi Province Applicant before: Coal machinery equipment Research Institute of Yangquan Coal Industry (Group) Co.,Ltd. Country or region before: China |
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Effective date of registration: 20240711 Address after: No. 112, Taonan Middle Road, mining area, Yangquan City, Shanxi Province 045008 Applicant after: YANGQUAN COAL INDUSTRY GROUP HUAYUE MACHINERY CO.,LTD. Country or region after: China Address before: 045000 yard of Yangquan Coal Huading Machinery Co., Ltd., north of Zhanjiang street, East District, Yangquan economic and Technological Development Zone, Shanxi Province Applicant before: Coal machinery equipment Research Institute of Huayang New Material Technology Group Co.,Ltd. Country or region before: China |