Multifunctional comprehensive experimental test conversion integrated equipment

Abstract

The invention relates to the technical field of power testing, in particular to multifunctional comprehensive test conversion integrated equipment which comprises a conversion integrated device and test instrument connecting line, a conversion integrated device and a multifunctional comprehensive test line. The conversion integration device and test instrument connecting line is used for connecting the conversion integration device and a test instrument; the conversion integrated device is used for quickly adapting to different test instruments and tested equipment and discharging before and after a test; and the multifunctional comprehensive test line is used for connecting the conversion integrated device and the tested equipment. Test items supported by the device are insulation resistance, dielectric loss capacitance, direct current resistance, transformation ratio and demagnetization tests, all power failure routine test items of the transformer can be completed without replacing a test line, the time of the power failure routine test of the transformer and the frequency of high-altitude operation can be obviously reduced, the working efficiency is greatly improved, and the test cost is reduced. And the safety risk in the test operation process is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power testing, and is a multifunctional integrated test conversion and integration device. Background Art

[0002] With the continuous improvement of the manufacturing level of power equipment, a large number of new equipment have been continuously put into operation in the power grid, and the faults that occur during the operation of power equipment are also diversified. In recent years, faults of equipment such as transformers have occurred frequently. The efficiency and quality of electrical test work directly affect all aspects of substation work and also measure the substation work level of power supply units.

[0003] When preventive tests are carried out on equipment in a substation, wiring, insulation resistance, dielectric loss capacitance, DC resistance, transformation ratio, degaussing test and other tests need to be carried out. However, the specifications of the test lines are inconsistent, and personnel need to frequently change the wiring, which seriously affects the work progress and takes a long time. During the test, the time delay caused by the too long overlapping length of the test lines accounts for a large proportion of the fixed time of the overall test lines. The too long fixed test line time affects the overall work progress and takes a long time.

[0004] Traditional test lines have a single function and cannot meet complex and changeable test requirements. Therefore, it is particularly important to develop a multifunctional integrated test conversion and integration device. Summary of the Invention

[0005] The present invention provides a multifunctional integrated test conversion and integration device, which overcomes the above-mentioned deficiencies of the prior art and can effectively solve the problem that traditional test lines have a single function and cannot meet complex and changeable test requirements.

[0006] The technical solution of the present invention is realized by the following measures: A multifunctional integrated test conversion and integration device includes a conversion and integration device, a connection line between the conversion and integration device and a test instrument, and a multifunctional integrated test line. Among them, the connection line between the conversion and integration device and the test instrument is used to connect the conversion and integration device and the test instrument. Among them, the conversion and integration device is used to quickly adapt to different test instruments and devices under test, and perform discharge before and after the test. Among them, the multifunctional integrated test line is used to connect the conversion and integration device and the device under test.

[0007] The following is a further optimization and / or improvement of the above-mentioned technical solution of the invention: The above-mentioned conversion and integration device may further include a control module, which is used to monitor the connection status, current, and voltage parameters of the test line, and perform overcurrent and overvoltage protection.

[0008] The above-mentioned conversion and integration device may be provided with a main panel, which includes an input end and an output end. The input end is used for inputting detection signals, and the output end is used for outputting detection signals.

[0009] The above-mentioned input end may include an input end pluggable terminal and a discharge button, and the input end pluggable terminal is electrically connected to the discharge button.

[0010] The above-mentioned output end may include an output end pluggable terminal, a general control button, an output end fixed terminal, and a grounding end. The general control button is electrically connected to the hierarchical control button through the output end pluggable terminal, and the hierarchical control button is electrically connected to the grounding end through the output end fixed terminal.

[0011] The above-mentioned multi-functional integrated test line may include an extension cable and a multi-functional test connector. The extension cable is used to extend the connection line between the conversion and integration device and the device under test, and the multi-functional test connector is used to connect the device under test.

[0012] The above-mentioned extension cable may include an outer insulation layer, a shielding layer, an insulating filling material, and a voltage and current inner core. The outer insulation layer is arranged on the outermost layer of the extension cable, the shielding layer is arranged inside the outer insulation layer, the insulating filling material is filled inside the shielding layer, and the voltage and current inner core is arranged in the insulating filling material.

[0013] The above-mentioned multi-functional test connector may include a signal line and a clamp wiring. The signal line is connected to the bushing end screen, and the clamp wiring is connected to the bushing wiring board.

[0014] The present invention can achieve quick connection and disconnection, save a large amount of time and energy during the test process, and improve work efficiency; it can conveniently adjust the connection method according to the test requirements, and easily add, remove, or replace test instruments or conversion and integration devices. The present invention can quickly adapt to different test instruments and devices under test, and is provided with a discharge button for convenient discharging before and after the test. It also has a control module that can monitor the connection status, current, and voltage parameters of the test line, and perform overcurrent and overvoltage protection. The test items supported by the present invention are insulation resistance, dielectric loss capacitance, DC resistance, transformation ratio, and degaussing test. It can complete all the routine outage test items of the transformer without replacing the test line, significantly reduce the time of the transformer's routine outage test and the number of high-altitude operations, greatly improve work efficiency, and reduce the safety risks during the test operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the main panel of the conversion and integration device of an embodiment of the present invention.

[0017] Figure 3 Schematic diagram of the principle of the conversion integration device according to an embodiment of the present invention.

[0018] Figure 4 Schematic diagram of the structure of the extension cord according to an embodiment of the present invention.

[0019] Figure 5 Schematic diagram of the inner diameter plane of the extension cord according to an embodiment of the present invention.

[0020] Figure 6 Schematic diagram of the structure of the multi-functional test joint according to an embodiment of the present invention.

[0021] Figure 7 Schematic diagram of the structure of the connection line between the conversion integration device and the test instrument from one perspective according to an embodiment of the present invention.

[0022] Figure 8 Schematic diagram of the structure of the connection line between the conversion integration device and the test instrument from another perspective according to an embodiment of the present invention.

[0023] Figure 9 Schematic diagram of the three-dimensional structure of the test instrument connection line joint according to an embodiment of the present invention.

[0024] Figure 10 Schematic diagram of the front structure of the test instrument connection line joint according to an embodiment of the present invention.

[0025] The codes in the drawings are respectively: 1 is the test instrument, 2 is the multi-functional integrated test and conversion integration device, 3 is the conversion integration device, 31 is the input plug-in terminal, 32 is the discharge button, 33 is the ordinary control button, 34 is the output terminal fastening terminal, 35 is the grounding terminal, 37 is the input terminal, 38 is the output terminal, 39 is the hierarchical control button, 40 is the output plug-in terminal, 42 is the multi-functional test joint, 43 is the clamp connection, 44 is the signal line, 45 is the extension cord, 411 is the outer insulation layer, 412 is the shielding layer, 413 is the insulation filling material, 414 is the voltage and current inner core. Detailed implementation manners

[0026] The present invention is not limited by the following embodiments, and the specific implementation manners can be determined according to the technical solutions of the present invention and the actual situation.

[0027] The present invention will be further described below in conjunction with embodiments: Embodiment 1: As shown in FIGS. Figure 1 、 2 3, the multi-functional integrated test and conversion integration device includes a connection line between the conversion integration device and the test instrument, the conversion integration device 3, and the multi-functional integrated test line; Among them, the connecting wire between the conversion integration device and the test instrument is used to connect the conversion integration device 3 and the test instrument 1. The advantage of the connecting wire between the conversion integration device and the test instrument is that it can achieve quick connection and disconnection, saving a large amount of time and energy during the test process and improving work efficiency. It can conveniently adjust the connection method according to the test requirements, easily add, remove, or replace the test instrument or the conversion integration device. After strict design and quality inspection, it can withstand more than 50,000 plug-and-unplug cycles, ensuring the stability and accuracy of signal transmission and guaranteeing the reliability of test data. It is made of materials with good anti-corrosion, wear-resistant, and high and low temperature resistance properties, and can adapt to various complex test environments. It follows relevant industry standards and specifications, and the test instrument connecting wires from different manufacturers have good compatibility and interchangeability, facilitating the conversion of various tests.

[0028] Among them, the conversion integration device 3 is used to quickly adapt to different test instruments 1 and the device under test, and perform pre- and post-test discharges. In the embodiment of the present invention, the device under test can be a transformer or other devices that need to be tested. Specifically, the conversion integration device 3 includes an input plug-in terminal 31, a discharge button 32, a general control button 33, a hierarchical control button 39, an output terminal fastening terminal 34, a grounding terminal 35, and an output plug-in terminal 40. The input plug-in terminal 31 is electrically connected to the discharge button 32, and the discharge button 32 is electrically connected to the grounding terminal 35. The input plug-in terminal 31 is also electrically connected to the general control button 33, the general control button 33 is electrically connected to the hierarchical control button 39 through the output plug-in terminal 40, and the hierarchical control button 39 is electrically connected to the grounding terminal 35 through the output terminal fastening terminal 34. It can be divided into a high-voltage area, a medium-voltage area, a neutral point area, and a low-voltage area according to the voltage level. The signal input can be divided into five parts: A, Am, Ao, a, and y. The signal output can be equipped with various specifications and types of interfaces, such as alligator clips, aviation plugs, etc., which can quickly adapt to different test instruments and the device under test, and a discharge button is provided to facilitate pre- and post-test discharges. The conversion integration device also includes a control module for monitoring the connection status of the test line, current, and voltage parameters, and performing overcurrent and overvoltage protection. The test items supported by the present invention are insulation resistance, dielectric loss capacitance, DC resistance, transformation ratio, and degaussing test.

[0029] Among them, the multi-functional comprehensive test line is used to connect the conversion integration device 3 and the device under test.

[0030] Before use, the multi-functional integrated test and conversion device should be tested first to ensure that the device is in good condition. The wiring methods for various tests on the main panel of the conversion integrated device 3 are as follows: ① Dielectric loss test: mainly conduct tests on the dielectric loss and capacitance of windings together with bushings and bushings. When conducting tests on the dielectric loss and capacitance of windings together with bushings, the input terminals can be inserted into the high-voltage area a or b, the medium-voltage area c or d, the neutral-point area e or f, the low-voltage area g or h, i or j in sequence. The instrument connection wires are connected to the corresponding output plug-in terminals 40 in sequence, and the hierarchical control button 39 is turned off; when conducting tests on the dielectric loss and capacitance of bushings, the high-voltage wire and Cx wire of the input terminal can be inserted into the high-voltage area a and b, the medium-voltage area c and d, the neutral-point area e and f, the low-voltage area g and h, i and j in sequence. The instrument connection wires are connected to the corresponding output plug-in terminals 40 in sequence, and the hierarchical control button 39 is turned off. The discharge button 32 is switched before and after the test for discharging. ② Insulation resistance test: mainly conduct tests on the insulation resistance between high voltage and medium voltage to low voltage and ground, between low voltage to high voltage and medium voltage and ground, and the overall insulation resistance to ground. When conducting tests on the insulation resistance between high voltage and medium voltage to low voltage and ground, the input terminals can be inserted into the high-voltage area a or b, the medium-voltage area c or d, the neutral-point area e or f, the low-voltage area g or h, i or j in sequence, and the corresponding 7 or 8, i or j in the low-voltage area is switched to the common control button 33 to connect to the ground, and the instrument connection wires are connected to the high-voltage area a or b, and then connected to the corresponding output plug-in terminals 40 of the high-voltage area a or b in sequence, and the hierarchical control button 39 is turned off. The output plug-in terminals 40 of the high-voltage area a or b, the medium-voltage area c or d, and the neutral-point area e or f are short-circuited. The test method for the insulation resistance between low voltage to high voltage and medium voltage and ground is the opposite. When conducting tests on the overall insulation resistance to ground, the high-voltage area a or b, the medium-voltage area c or d, the neutral-point area e or f, and the low-voltage area g or h, i or j are short-circuited in sequence; the discharge button 32 is switched before and after the test for discharging. ③ Transformation ratio test: When conducting the transformation ratio test, the input terminals can be inserted into the high-voltage area a or b, the medium-voltage area c or d, the low-voltage area g or h, i or j in sequence. The instrument connection wires are connected to the corresponding output fixed terminals 34 in sequence, and the hierarchical control button 39 is turned on, and parameters are set for testing. The discharge button 32 is switched before and after the test for discharging. ④ DC resistance test: When conducting the DC resistance test, the input terminals can be inserted into the high-voltage area a or b, the medium-voltage area c or d, the neutral-point area e or f, the low-voltage area g or h, i or j in sequence. The instrument connection wires are connected to the corresponding output fixed terminals 34 in sequence, and the hierarchical control button 39 is turned on, and parameters are set for testing. The discharge button 32 is switched before and after the test for discharging. ⑤ Degaussing: When conducting the degaussing test, the input terminals can be inserted into the high-voltage area a or b, the medium-voltage area c or d or the low-voltage area g or h, i or j in sequence. The instrument connection wires are connected to the corresponding output fixed terminals 34 in sequence, and the hierarchical control button 39 is turned on, and parameters are set for testing. The discharge button 32 is switched before and after the test for discharging.

[0031] The present invention is a multifunctional integrated test conversion and integration device, which is aimed at the integrated test line and conversion integration of conventional high-voltage tests in substations, and is specifically used for preventive tests in substations. The present invention can achieve quick connection and disconnection, saving a large amount of time and effort during the test process and improving work efficiency; it can conveniently adjust the connection method according to test requirements, and easily add, remove or replace test instruments or conversion integration devices. The present invention can quickly adapt to different test instruments and devices under test, and is provided with a discharge button for convenient discharging before and after the test. It also has a control module that can monitor the connection status, current and voltage parameters of the test line, and perform overcurrent and overvoltage protection. The test items supported by the present invention are insulation resistance, dielectric loss capacitance, DC resistance, transformation ratio, and degaussing test. It can complete all the outage routine test items of a transformer without replacing the test line, significantly reducing the time of the transformer outage routine test and the number of high-altitude operations, greatly improving work efficiency and reducing the safety risk during the test operation process. The present invention can implement multiple types of test functions such as insulation resistance test, dielectric loss factor and capacitance measurement, DC resistance measurement, transformation ratio detection, and degaussing test, effectively avoiding the frequent adjustment of wiring due to differences in test line specifications, thus effectively improving work efficiency and having significant practical value. It can integrate multiple different types of test functions such as insulation resistance, dielectric loss capacitance, DC resistance, transformation ratio, and degaussing test into one. Just using this one conversion integration device can complete multiple different test tasks, without the need to separately equip different devices and test lines for each test as in the past, greatly improving the convenience and efficiency of testing. It can be compatible with multiple different specifications and models of test equipment and objects to be measured, and can flexibly switch the connection method and adapt to different interfaces according to different test requirements, enabling the device to be used in multiple different test scenarios, expanding its application range, and improving the versatility and practicality of the device.

[0032] Embodiment 2: As shown in the appended Figure 2 , 3 In the multifunctional integrated test conversion and integration device, the conversion integration device 3 is provided with a main panel, which includes an input end 37 and an output end 38. The input end 37 is used for inputting detection signals, and the output end 38 is used for outputting detection signals. Specifically, it can be subdivided into a high-voltage area, a medium-voltage area, a neutral point area, a low-voltage area, and a grounding end 35. Multiple columns of buttons can be set, and each column of buttons is interconnected. Each column of buttons can be used for corresponding test connections, and the columns are insulated from each other.

[0033] The input end 37 includes an input plug-in terminal 31 and a discharge button 32. The input plug-in terminal 31 is electrically connected to the discharge button 32. Before and after the test, discharging can be performed by switching the discharge button 32 switch to connect the plug-in terminal 31 to the ground.

[0034] The output terminal 38 includes an output terminal pluggable terminal 40, a general control button 33, an output terminal fixed terminal 34, and a grounding terminal 35. The general control button 33 is electrically connected to the hierarchical control button 39 through the output terminal pluggable terminal 40, and the hierarchical control button 39 is electrically connected to the grounding terminal 35 through the output terminal fixed terminal 34. The appropriate instrument interface can be selected by switching the general control button 33. For example, if the output terminal pluggable terminal 40 is selected, the hierarchical control button 39 can be turned off. If the output terminal fixed terminal 34 is selected, the hierarchical control button 39 should be turned on and connected.

[0035] Embodiment 3: As shown in Figure 4 , 5 , and 6, in the multifunctional integrated test conversion device, the multifunctional integrated test line includes an extension line 45 and a multifunctional test joint 42. The extension line 45 is used to extend the connection line between the conversion integrated device 3 and the device under test, and the multifunctional test joint 42 is used to connect the device under test.

[0036] The extension line 45 includes an outer insulation layer 411, a shielding layer 412, an insulating filling material 413, and a voltage and current inner core 414. The outer insulation layer 411 is arranged on the outermost layer of the extension line, the shielding layer 412 is arranged inside the outer insulation layer 411, the insulating filling material 413 is filled inside the shielding layer 412, and the voltage and current inner core 414 is arranged in the insulating filling material 413. The shielding layer 412 has a shielding effect and can be used as a cable for DC resistance and dielectric loss capacitance. By optimizing the shielding design and using a rubber outer insulation layer instead of a low-voltage shielding layer, the production cost of the single-layer shielding test line is reduced by half compared with that of the double-layer shielding. The voltage and current inner core 414 includes a voltage line, a current line, and a signal line to meet the test requirements such as DC resistance and dielectric loss capacitance. One side joint of the extension line 45 is connected to the input terminal pluggable terminal 31, and the other side is connected to the multifunctional test joint 42. The multifunctional test joint 42 includes a signal line 44 and a clamp wiring 43. In the embodiment of the present invention, the signal line 44 is a Cx signal line, the signal line 44 is connected to the bushing end screen, and the clamp wiring 43 is connected to the bushing wiring board.

[0037] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effects. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. A multifunctional comprehensive test conversion integrated device, characterized in that It includes a conversion integrated device and a test instrument connection line, a conversion integrated device and a multifunctional comprehensive test line; Wherein, the connection line between the conversion integrated device and the test instrument is used to connect the conversion integrated device and the test instrument; Among them, the conversion integrated device is used to quickly adapt to different test instruments and tested equipment, and to discharge before and after the test; Among them, the multifunctional comprehensive test line is used to connect the conversion integrated device and the tested equipment.

2. The multifunctional comprehensive test conversion integrated device according to claim 1 is characterized in that The conversion integrated device also includes a control module for monitoring the connection status, current and voltage parameters of the test line and performing over-current and over-voltage protection.

3. The multifunctional comprehensive test conversion integrated device according to claim 1 or 2, characterized in that The conversion integrated device is provided with a main panel, which includes an input end and an output end. The input end is used for inputting a detection signal, and the output end is used for outputting a detection signal.

4. The multifunctional comprehensive test conversion integrated device according to claim 3 is characterized in that The input end comprises an input end plug-in wiring terminal and a discharge button, and the input end plug-in wiring terminal is electrically connected to the discharge button.

5. The multifunctional comprehensive test conversion integrated device according to claim 3 is characterized in that The output end includes an output end plug-in terminal, a common control button, an output end fastening terminal and a grounding terminal. The common control button is electrically connected to the graded control button through the output end plug-in terminal, and the graded control button is electrically connected to the grounding terminal through the output end fastening terminal.

6. The multifunctional comprehensive test conversion integrated device according to claim 4 is characterized in that The output end includes an output end plug-in terminal, a common control button, an output end fastening terminal and a grounding terminal. The common control button is electrically connected to the graded control button through the output end plug-in terminal, and the graded control button is electrically connected to the grounding terminal through the output end fastening terminal.

7. The multifunctional comprehensive test conversion integrated device according to claim 1 or 2 or 4 or 5 or 6, characterized in that The multifunctional comprehensive test line includes an extension line and a multifunctional test connector. The extension line is used to extend the connection line between the conversion integrated device and the device under test, and the multifunctional test connector is used to connect the device under test.

8. The multifunctional comprehensive test conversion integrated device according to claim 7 is characterized in that The extension line includes an outer insulating layer, a shielding layer, an insulating filling material and a voltage and current inner core. The outer insulating layer is arranged at the outermost layer of the extension line, the shielding layer is arranged inside the outer insulating layer, the inside of the shielding layer is filled with insulating filling material, and the voltage and current inner core is passed through the insulating filling material.

9. The multifunctional comprehensive test conversion integrated device according to claim 7 is characterized in that The multifunctional test connector comprises a signal line and a clamp connection, the signal line is connected to the end screen of the casing, and the clamp connection is connected to the casing connection board.

10. The multifunctional comprehensive test conversion integrated device according to claim 8 is characterized in that The multifunctional test connector comprises a signal line and a clamp connection, the signal line is connected to the end screen of the casing, and the clamp connection is connected to the casing connection board.

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