CN110954776B - Power equipment detection device and method based on automatic wire winding and unwinding and wire switching - Google Patents
Power equipment detection device and method based on automatic wire winding and unwinding and wire switching Download PDFInfo
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- CN110954776B CN110954776B CN201911291821.4A CN201911291821A CN110954776B CN 110954776 B CN110954776 B CN 110954776B CN 201911291821 A CN201911291821 A CN 201911291821A CN 110954776 B CN110954776 B CN 110954776B
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- 238000001514 detection method Methods 0.000 title claims abstract description 88
- 238000004804 winding Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title abstract description 9
- 238000012360 testing method Methods 0.000 claims abstract description 142
- 238000005070 sampling Methods 0.000 claims description 12
- 230000009466 transformation Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
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- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/01—Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention relates to the field of power equipment detection, in particular to a power equipment detection device and method based on automatic coiling and uncoiling and switching. The invention comprises a coiling and uncoiling cabinet, a test connecting wire, a flexible detection system, an automatic wire switching device and an automatic coiling and uncoiling device; wherein: an automatic wire switching device and an automatic wire winding and unwinding device are arranged in the wire winding and unwinding machine cabinet; the automatic winding and unwinding device is used for leading out a test connecting wire from the winding and unwinding machine cabinet. The invention has simple structure and reasonable design, can finish a plurality of detection projects by one-time wiring in the test of the power equipment, does not need human intervention, and ensures the safety, reliability and accuracy of the detection of the power equipment. The invention organically combines the flexible detection system, the automatic winding and unwinding device and the automatic wire switching device together, thereby realizing the full automation of the detection of the power equipment. The detection means has the advantages of one-time wiring, one-time operation, intelligent test and the like, and can greatly improve the safety, reliability and accuracy in the detection process.
Description
Technical Field
The invention relates to the field of power equipment detection, in particular to a power equipment detection device and method based on automatic coiling and uncoiling and switching.
Background
The detection of the power equipment is an important circle for ensuring the operation safety of the power grid, and the safety, reliability and accuracy of the detection of the power equipment are also important guarantees for the safe and stable operation of the power grid. At present, the power equipment detection mainly comprises manual detection, manual switching of wires and manual winding and unwinding of wires are needed, different detection projects need different wiring modes, the degree of artificial influence on detection results is very high, and meanwhile, potential safety hazards exist in arrangement of a large number of instruments and equipment and connecting wires, so that automatic detection is difficult to realize.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a power equipment detection device and a method based on automatic wire winding and unwinding and wire switching. The purpose is in order to provide a simple structure, reasonable in design's detection device to can realize the full automatization that power equipment detected, guarantee security, reliability, the accuracy that power equipment detected.
In order to achieve the aim of the invention, the invention is realized by adopting the following technical scheme:
An electric power equipment detection device based on automatic wire winding and unwinding and switching comprises a wire winding and unwinding cabinet, a test connecting wire, a flexible detection system, an automatic wire switching device and an automatic wire winding and unwinding device; wherein: an automatic wire switching device and an automatic wire winding and unwinding device are arranged in the wire winding and unwinding machine cabinet; the automatic winding and unwinding device is used for leading out a test connecting wire from the winding and unwinding machine cabinet; the flexible system is integrated in a central computer stored in the coiling and uncoiling cabinet, and the flexible detection system is connected with the automatic coiling and uncoiling device through a local area network.
The test connecting wire is introduced into the automatic winding and unwinding device by the automatic switching device; summarizing test connecting wires led in by the switching wire device in a coiling and uncoiling machine cabinet, and leading out the test connecting wires by the coiling and uncoiling machine cabinet; the flexible detection system is connected with the automatic winding and unwinding device through a local area network.
The automatic winding and unwinding device is provided with a PLC, a relay, a bearing motor and a test wire coil, wherein the relay is connected with the bearing motor, and the bearing motor is connected with the test wire coil.
The test wire coil comprises an A-phase test wire coil, a B-phase test wire coil and a C-phase test wire coil, and test connecting wires are connected to the test wire coil.
The automatic switching line device comprises two cabinets, namely a high-voltage switching line device and a low-voltage switching line device.
The high-voltage switching line device comprises: the high-voltage current switching relay K1 and the high-voltage switching relay K2 respectively control the connection of high-voltage side voltage or current of the instrument; the high-voltage testing device further comprises a direct-resistance high-voltage control relay K4, a transformation ratio high-voltage control relay K5, a transformation parameter high-voltage control relay K6 and a high-voltage side control relay K7 of the on-load switch tester, wherein the K4-K7 are respectively used for switching different testing items; the low voltage switching line device includes: the sampling module controls the relay K3, the direct resistance low-voltage control relay K8, the transformation ratio low-voltage control relay K9 and the transformation parameter instrument low-voltage control relay K10; the low-voltage switching device is used for short-circuiting low-voltage coils in a load loss test, when short-circuiting is needed, the sampling module controls the relay K3 to be closed, short-circuiting is achieved, and the current detection unit monitors short-circuiting current.
The high-voltage current switching relay K1, the high-voltage switching relay K2 and the test connecting wire led out by the sampling module control relay K3 are connected to the high-voltage side and the low-voltage side of the tested product at the same time; when a direct resistance test is carried out, the flexible system sends a control signal to be transmitted to an automatic switching device, a high-voltage current switching relay K1, a high-voltage switching relay K2 and a sampling module in the high-low voltage switching device control relay K3 to be closed, a direct resistance high-voltage control relay K4 and a direct resistance low-voltage control relay K8 to be closed, connection of a direct resistance instrument and a tested object is realized, the direct resistance test is carried out, and the relay is disconnected after the test is completed; when different tests are carried out, the corresponding relay is closed, and the corresponding test is completed.
The flexible detection system transmits control signals to a PLC in the automatic winding and unwinding device through a local area network communication protocol, the PLC receives the signals and then controls the relay to supply power, the relay supplies power and then actuates the bearing motor, and the bearing motor rotates to drive the A-phase test wire coil, the B-phase test wire coil and the C-phase test wire coil to rotate respectively, so that the test connection wires are wound and unwound along the coils.
An electric power equipment detection method based on automatic wire winding and unwinding and switching comprises the following steps: the flexible detection system main control computer transmits control signals to the test through a local area network, after the test station receives the signals, the control signals are transmitted to the automatic switching line device and the automatic winding and unwinding device through the local area network according to a preset program, and the automatic winding and unwinding device operates after receiving the signals, and test connecting lines are released; meanwhile, the flexible detection system transmits control signals to the automatic switching line device according to different test items, and the automatic switching line device selects different test lines to be switched on and switched off according to different signal actions so as to meet the requirements of different tests; after all the tests are finished, the signals collected by the automatic wire switching device and the automatic wire winding and unwinding device are returned to the flexible detection system through the same channel; the flexible detection system is used for controlling the transmission of control signals to the coiling and uncoiling machine cabinet, and an automatic coiling and uncoiling device in the coiling and uncoiling machine cabinet operates after receiving the signals and coils a test connecting wire.
According to the power equipment detection method based on the automatic winding and unwinding line and the switching line, during the empty load test, the flexible detection system sends control signals to the three-phase variable frequency power supply and the parameter test module, the three-phase variable frequency power supply and the parameter test module are started, the test module controls the power supply to output corresponding voltage and current according to parameters of a tested product, and the voltage and current are transmitted to the tested product through the automatic switching line device, so that the power equipment detection method has the following advantages and beneficial technical effects compared with the prior art:
The invention provides the detection device which has a simple structure and reasonable design, and can finish a plurality of detection projects by one-time wiring in the test of the power equipment without human intervention, thereby ensuring the safety, reliability and accuracy of the detection of the power equipment. The invention organically combines the flexible detection system, the automatic winding and unwinding device and the automatic wire switching device together, thereby realizing the full automation of the detection of the power equipment.
The flexible detection system is an intelligent detection system capable of automatically providing a detection scheme according to the type of materials and detection requirements. The flexible detection system is in a pipeline mode, various electrical test items are organically softened to the same pipeline, the control, measurement, analysis and management of test data of various test items can be automatically completed, a detection report is finally generated, and the mode of a single type of traditional electrical test is thoroughly changed. The automatic take-up and pay-off device is characterized in that the system automatically lowers a test line group required for the test sample, and after the test is completed and a tester withdraws the line, the system automatically withdraws the line group upwards. The automatic switching line device is divided into two cabinet designs, a high-voltage switching line device and a low-voltage switching line device. After the detected sample enters the detection station, only the high-voltage terminal and the low-voltage terminal are correspondingly connected with the output terminals of the high-voltage switching wire device and the low-voltage switching wire device one by one respectively, the flexible detection system automatically starts the switching wire device according to the test items detected by the sample, the automatic switching wire does not need manual operation, and all tests can be completed by one-time wiring.
Compared with the traditional detection means, the invention has the advantages of one-time wiring, one-time operation, intelligent test and the like. The safety, the reliability and the accuracy in the detection process are greatly improved.
Drawings
In order to facilitate the understanding and practice of the invention, those of ordinary skill in the art will now make further details with reference to the drawings and detailed description, it being understood that the scope of the invention is not limited to the specific description.
FIG. 1 is a schematic view of an automatic take-up and pay-off device of the present invention;
fig. 2 is a schematic diagram of an automatic switching line device of the present invention.
FIG. 3 is a schematic diagram of the flexible detection system of the present invention controlling the automatic switching of the wire and the take-up and pay-off device;
fig. 4 is a schematic structural view of the automatic pay-off and take-up device of the present invention.
In the figure: the device comprises a coiling and uncoiling cabinet 1, a test connecting wire 2, a flexible detection system 11, an automatic wire switching device 12 and an automatic coiling and uncoiling device 13.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention discloses a power equipment detection device based on automatic winding and unwinding lines and switching lines, as shown in fig. 1, and fig. 1 is a schematic diagram of the automatic winding and unwinding device. The invention comprises a coiling and uncoiling cabinet 1, a test connecting wire 2, a flexible detection system 11, an automatic wire switching device 12 and an automatic coiling and uncoiling device 13. Wherein: an automatic wire switching device 12 and an automatic wire winding and unwinding device 13 are arranged in the wire winding and unwinding cabinet 1.
The automatic winding and unwinding device 13 draws out the test connecting wire 2 from the winding and unwinding machine cabinet 1.
The automatic winding and unwinding device 13 is provided with a PLC, a relay, a bearing motor and a test wire coil, wherein the relay is connected with the bearing motor, and the bearing motor drives the test wire coil. The test wire coil comprises an A-phase test wire coil, a B-phase test wire coil and a C-phase test wire coil, and the test wire coil is connected with a test connecting wire 2.
After the sample is in place, the flexible detection system 11 is used for controlling the transmission of a control signal to the wire winding and unwinding machine cabinet, the automatic wire winding and unwinding device 13 in the wire winding and unwinding machine cabinet 1 operates after receiving the signal, and the test connecting wire 2 is put; meanwhile, the flexible detection system 11 transmits control signals to the automatic switching line device 12 according to different test items, and the automatic switching line device 12 selects different test lines to be switched on and switched off according to different signal actions so as to meet the requirements of different tests; after all tests are finished, the flexible detection system 11 is used for controlling the transmission of control signals to the wire winding and unwinding machine cabinet 1, and the automatic wire winding and unwinding device 13 in the wire winding and unwinding machine cabinet 1 operates after receiving the signals to wind test connecting wires.
As shown in fig. 4, fig. 4 is a schematic structural view of the automatic pay-off and take-up device of the present invention. The automatic take-up and pay-off device 13 is arranged in the take-up and pay-off cabinet 1, and two test connecting wires 2 are led out from the take-up and pay-off cabinet 1. The test connection line 2 is a test connection line which is introduced into the automatic take-up and pay-off device 13 by the automatic switching line device 12. The test connection wires 2 led in by the switching wire device 12 are collected in the take-up and pay-off cabinet 1, and then the test connection wires 2 are led out by the take-up and pay-off cabinet 1 to be connected with the tested product.
The automatic take-up and pay-off device 13 is located on a special maintenance channel above the detection station, after the detected equipment is transported to the detection station, the automatic take-up and pay-off device 13 can automatically put down a detection item test line required by the detected equipment at the detection station, wrong test line selection of a tester is avoided, and after the test is finished, the automatic take-up and pay-off device 13 automatically takes up the test line.
The flexible system 11 is integrated in a central computer stored in the wire winding and unwinding cabinet 1, and issues instructions to other devices in the cabinet 1 through the central computer.
The flexible detection system 11 transmits control signals to a PLC in the automatic winding and unwinding device 13 through a local area network communication protocol, the PLC receives the signals and then controls a relay to supply power, a bearing motor is attracted to start after the relay supplies power, and the bearing motor rotates to drive an A-phase test wire coil, a B-phase test wire coil and a C-phase test wire coil to rotate respectively, so that the test connection wires 2 are wound and unwound along the coils.
As shown in fig. 3, fig. 3 is a schematic diagram of the flexible detection system of the present invention controlling the automatic switching line and the take-up and pay-off device. The flexible detection system 11 is a software and hardware combination system, a main control computer transmits control signals to a test through a local area network, after a test station receives the signals, the control signals are transmitted to the automatic switching line device 12 and the automatic winding and unwinding device 13 through the local area network according to a preset program, and the signals collected by the automatic switching line device 12 and the automatic winding and unwinding device 13 are returned to the flexible detection system 11 through the same channel. The flexible detection system 11 integrates various professional tests into one station through a server control mode, and realizes automatic detection through different devices.
As shown in fig. 2, fig. 2 is a schematic diagram of the automatic switching line device of the present invention. The automatic switching line device 12 includes two cabinets, a high voltage switching line device and a low voltage switching line device. The method comprises the following steps: the high-voltage current switching relay K1, the high-voltage switching relay K2, the sampling module control relay K3, the direct-resistance high-voltage control relay K4, the transformation ratio high-voltage control relay K5, the transformation parameter instrument high-voltage control relay K6, the on-load switch tester high-voltage side control relay K7 and the on-load switch tester high-voltage side control relay K7 are reserved; direct resistance low-voltage control relay K8, transformation ratio low-voltage control relay K9 and transformation parameter instrument low-voltage control relay K10.
The high-voltage switching wire of the automatic switching wire device is characterized in that a high-voltage end is provided with a high-voltage current switching relay K1 and a high-voltage switching relay K2 which are respectively used for controlling the connection of high-voltage side voltage or current of an instrument because of high-voltage output during no-load test. The high-side switch groups K4-K7 are used to switch different test items.
The low-voltage switching device of the automatic switching wire device is used for short-circuiting a low-voltage coil in a load loss test, and because the impedance of a short-circuiting lead wire can influence a measurement result, a voltage and current detection unit is designed and used for detecting the additional loss of the measurement lead wire, and under the cooperation of software, the error caused by the measurement lead wire can be automatically deducted. When short circuit is needed, the sampling module controls the relay K3 to be closed, short circuit is realized, and the current detection unit monitors short circuit current.
All the test current lines and the voltage lines are separated, so that the influence of the length of the test lines on the test result in the test process is avoided.
Test connecting wires led out from the high-voltage current switching relay K1, the high-voltage switching relay K2 and the sampling module control relay K3 are simultaneously connected to the high-voltage side and the low-voltage side of the tested product. When the direct resistance test is carried out, the flexible system sends out control signals and transmits the control signals to the automatic switching device, the high-voltage current switching relay K1, the high-voltage switching relay K2 and the sampling module control relay K3 in the high-low voltage switching device are closed, the direct resistance high-voltage control relay K4 and the direct resistance low-voltage control relay K8 are closed, the connection between the direct resistance instrument and a tested product is realized, the direct resistance test is carried out, and the relay is disconnected after the test is completed. When different tests are carried out, the corresponding relay is closed, and the corresponding test is completed.
During the empty load test, the flexible detection system 11 sends control signals to the three-phase variable frequency power supply and the parameter test module, the three-phase variable frequency power supply and the parameter test module are started, the test module controls the power supply to output corresponding voltage and current according to the parameters of the tested object, and the voltage and current are transmitted to the tested object through the automatic switching line device 12.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to imply that the scope of the disclosure, including the claims, is limited to such examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the invention, the steps may be implemented in any order and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present invention should be included in the scope of the present invention.
Claims (5)
1. An automatic take-up and pay-off and switching line-based power equipment detection device is characterized in that: the device comprises a coiling and uncoiling cabinet (1), a test connecting wire (2), a flexible detection system (11), an automatic wire switching device (12) and an automatic coiling and uncoiling device (13); wherein: an automatic wire switching device (12) and an automatic wire winding and unwinding device (13) are arranged in the wire winding and unwinding cabinet (1); the automatic winding and unwinding device (13) is used for leading out a test connecting wire (2) from the winding and unwinding machine cabinet (1); the flexible detection system (11) is integrated in a central computer stored in the coiling and uncoiling cabinet (1), and the flexible detection system (11) is connected with the automatic coiling and uncoiling device (13) through a local area network; the test connecting wire (2) is a test connecting wire which is introduced into the automatic winding and unwinding device (13) by the automatic wire switching device (12); the test connecting wires (2) led in by the switching wire device (12) are summarized in the coiling and uncoiling cabinet (1), and the test connecting wires (2) are led out by the coiling and uncoiling cabinet (1); the automatic winding and unwinding device (13) is internally provided with a PLC, a relay, a bearing motor and a test wire coil, wherein the relay is connected with the bearing motor, and the bearing motor is connected with the test wire coil; the test wire coil comprises an A-phase test wire coil, a B-phase test wire coil and a C-phase test wire coil, and the test wire coil is connected with a test connecting wire (2); the automatic switching line device (12) comprises two cabinets, namely a high-voltage switching line device and a low-voltage switching line device; the high-voltage switching line device comprises: the high-voltage current switching relay K1 and the high-voltage switching relay K2 respectively control the connection of high-voltage side voltage or current of the instrument; the high-voltage testing device further comprises a direct-resistance high-voltage control relay K4, a transformation ratio high-voltage control relay K5, a transformation parameter high-voltage control relay K6 and a high-voltage side control relay K7 of the on-load switch tester, wherein the K4-K7 are respectively used for switching different testing items; the low voltage switching line device includes: the sampling module controls the relay K3, the direct resistance low-voltage control relay K8, the transformation ratio low-voltage control relay K9 and the transformation parameter instrument low-voltage control relay K10; the low-voltage switching device is used for short-circuiting low-voltage coils in a load loss test, when short-circuiting is needed, the sampling module controls the relay K3 to be closed, short-circuiting is achieved, and the current detection unit monitors short-circuiting current.
2. The electrical equipment detection device based on automatic take-up and pay-off and switching lines according to claim 1, characterized in that: the high-voltage current switching relay K1, the high-voltage switching relay K2 and the test connecting wire led out by the sampling module control relay K3 are connected to the high-voltage side and the low-voltage side of the tested product at the same time; when a direct resistance test is carried out, the flexible system sends a control signal to be transmitted to an automatic switching device, a high-voltage current switching relay K1, a high-voltage switching relay K2 and a sampling module in the high-low voltage switching device control relay K3 to be closed, a direct resistance high-voltage control relay K4 and a direct resistance low-voltage control relay K8 to be closed, connection of a direct resistance instrument and a tested object is realized, the direct resistance test is carried out, and the relay is disconnected after the test is completed; when different tests are carried out, the corresponding relay is closed, and the corresponding test is completed.
3. The electrical equipment detection device based on automatic take-up and pay-off and switching lines according to claim 1, characterized in that: the flexible detection system transmits control signals to a PLC in the automatic winding and unwinding device through a local area network communication protocol, the PLC receives the signals and then controls the relay to supply power, the relay supplies power and then actuates the bearing motor, and the bearing motor rotates to drive the A-phase test wire coil, the B-phase test wire coil and the C-phase test wire coil to rotate respectively, so that the test connection wires are wound and unwound along the coils.
4. The electrical equipment detection device based on automatic take-up and pay-off and switching lines according to claim 1, characterized in that: the detection method of the detection device comprises the following steps: the flexible detection system main control computer transmits control signals to the test through a local area network, after the test station receives the signals, the control signals are transmitted to the automatic switching line device and the automatic winding and unwinding device through the local area network according to a preset program, and the automatic winding and unwinding device operates after receiving the signals, and test connecting lines are released; meanwhile, the flexible detection system transmits control signals to the automatic switching line device according to different test items, and the automatic switching line device selects different test lines to be switched on and switched off according to different signal actions so as to meet the requirements of different tests; after all the tests are finished, the signals collected by the automatic wire switching device and the automatic wire winding and unwinding device are returned to the flexible detection system through the same channel; the flexible detection system is used for controlling the transmission of control signals to the coiling and uncoiling machine cabinet, and an automatic coiling and uncoiling device in the coiling and uncoiling machine cabinet operates after receiving the signals and coils a test connecting wire.
5. The power equipment detection apparatus based on automatic take-up and pay-off and switching line according to claim 4, wherein: when in empty load test, the flexible detection system sends control signals to the three-phase variable frequency power supply and the parameter test module, the three-phase variable frequency power supply and the parameter test module are started, the test module controls the power supply to output corresponding voltage and current according to parameters of the tested product, and the voltage and current are transmitted to the tested product through the automatic switching line device.
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| CN201911291821.4A CN110954776B (en) | 2019-12-16 | 2019-12-16 | Power equipment detection device and method based on automatic wire winding and unwinding and wire switching |
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| CN201911291821.4A CN110954776B (en) | 2019-12-16 | 2019-12-16 | Power equipment detection device and method based on automatic wire winding and unwinding and wire switching |
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| CN110954776B true CN110954776B (en) | 2024-06-11 |
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