Full-automatic intelligent insulation test equipment
By designing fully automatic intelligent insulation testing equipment, using technical means such as electric phase selection isolation switch and interactive link, the problem of electric shock and fall risks in existing equipment has been solved, and higher safety and reliability have been achieved.
Patent Information
- Application Number
- CN202411452433.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-03-07
AI Technical Summary
The existing insulation testing equipment has the risk of electric shock in the power frequency voltage withstand test and lightning impact test and the risk of falling of human crawling cabinet wiring, resulting in safety hazards and inconvenient operation.
A fully automatic intelligent insulation test equipment was designed, using technical means such as electric phase selection isolation switch and interactive link to achieve automated control and safe isolation, and avoid manual contact with high-voltage power supply.
Through fully automatic intelligent control, the operator's electric shock risk and fall risk are reduced, the safety and reliability of the test are improved, and the errors and downtime of manual operation are reduced.
Smart Images
Figure CN119575083A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of insulation testing, in particular to a fully automatic intelligent insulation testing device. Background Art
[0002] During operation, electrical equipment is always under the influence of various external factors, and its performance will continue to change. These external factors mainly include external electric field, environment, high voltage, corrosion and machinery. Under the influence of these adverse factors, power equipment is more prone to unpredictable failures, and serious power outages may occur. According to relevant statistics from the State Grid, more than 90% of power accidents are caused by insulation failure. Therefore, high-voltage electrical equipment in the power system should be subjected to insulation tests before being put into operation to ensure the safe and stable operation of the power system. Therefore, in order to ensure the good insulation of high-voltage electrical equipment and the stable and safe operation of the power system, according to national standards, insulation tests must be carried out on the finalization and factory delivery of electrical equipment.
[0003] With the development of the national power industry and the improvement of standards, the power industry has higher and higher safety requirements for power distribution products. At present, in the factory test and type test of power transmission and distribution, the connection between the power frequency withstand voltage test equipment and lightning impulse equipment and the test products is performed by people holding high-voltage leads and grounding wires in accordance with the standards, and frequently and carefully turning the wires. Since the power frequency withstand voltage test and lightning impulse test are both high-voltage tests, there is a certain risk of electric shock and the risk of people falling when climbing cabinets to connect wires. Summary of the invention
[0004] The purpose of the present invention is to provide a fully automatic intelligent insulation testing equipment to solve the problem that since both the power frequency withstand voltage test and the lightning impulse test are high voltage tests, there is a certain risk of electric shock and the risk of falling when people climb cabinet wiring.
[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: a fully automatic intelligent insulation test equipment, including a power supply wire, one end of the power supply wire is fixed with a first electric phase-selective isolating switch, one side of the first electric phase-selective isolating switch is fixed with a first wire, the other side of the first electric phase-selective isolating switch is fixed with a second wire, one end of the first wire is fixed with a power frequency withstand voltage test equipment, one end of the second wire is fixed with a lightning impulse test equipment, one side of the power frequency withstand voltage test equipment is fixed with a third wire, one side of the lightning impulse test equipment is fixed with a fourth wire, the other end of the third wire is fixed with a second electric phase-selective isolating switch, one side of the lightning impulse test equipment is fixed with a fourth wire, one side of the second electric phase-selective isolating switch is fixed with the other end of the fourth wire, one side of the second electric phase-selective isolating switch is fixed with a connecting wire, one end of the connecting wire is provided with a third electric phase-selective isolating switch, one side of the third electric phase-selective isolating switch is provided with a first ES isolating switch, one side of the third electric phase-selective isolating switch is fixed with a fifth wire, the other end of the fifth wire is fixed with a fifth isolating switch, one side of the fifth isolating switch is provided with an eighth wire, and the other end of the eighth wire is provided with a test piece.
[0006] Preferably, a seventh wire is connected to one side of the test piece, a fourth isolating switch is fixed to one end of the seventh wire, a ninth wire is connected to one side of the test piece, a sixth isolating switch is fixed to one end of the ninth wire, and an installation wire is provided on one side of the fourth isolating switch and the sixth isolating switch, one end of the installation wire is connected to the fifth wire.
[0007] Preferably, an eleventh wire is provided on one side of the test product, an eighth isolating switch is fixed to one end of the eleventh wire, a sixth wire is fixed to one side of the eighth isolating switch, and a second ES isolating switch is fixed to one end of the sixth wire.
[0008] Preferably, a tenth wire is fixed to one side of the test piece, a seventh isolating switch is fixed to one end of the tenth wire, a twelfth wire is provided on one side of the test piece, a ninth isolating switch is fixed to one end of the twelfth wire, wires are provided on one side of the ninth isolating switch and the seventh isolating switch, and the sixth wire is connected to one end of the two wires.
[0009] Preferably, an outgoing wire is provided on one side of the test piece, a third ES isolating switch is provided on one end of the outgoing wire, a ground wire is provided on one side of the third ES isolating switch, a fixed wire is connected to the ground wire, and one end of the fixed wire is fixed to one side of the first ES isolating switch.
[0010] Preferably, a plurality of lead-out terminals are provided on one side of the test piece, and the lead-out terminals can be divided into A, B, C, a, b, c, and E2.
[0011] Preferably, the outlet lead terminal A is connected to the seventh wire, the outlet lead terminal B is connected to the eighth wire, the outlet lead terminal C is connected to the ninth wire, the outlet lead terminal a is connected to the tenth wire, the outlet lead terminal b is connected to the eleventh wire, the outlet lead terminal c is connected to the twelfth wire, and the outlet lead terminal E2 is connected to the outlet wire.
[0012] Preferably, the ground wire and the lead terminals on the food side are both made of high-voltage soft-core cables.
[0013] A fully automatic intelligent insulation test method, the specific steps are as follows:
[0014] Step 1: The staff will first connect the test product's terminals A, B, C, a, b, c, and E2 to the seventh wire, eighth wire, ninth wire, tenth wire, eleventh wire, twelfth wire, and outgoing wire of the experimental equipment respectively.
[0015] Step 2: When the power frequency withstand voltage test of phase A of the test piece needs to be closed phase to phase to ground, the industrial computer controls the second electric phase-selective isolating switch to connect the third wire, the third electric phase-selective isolating switch to connect the fifth wire, and then the fourth isolating switch, the ninth isolating switch and the eighth isolating switch are closed, then the second ES isolating switch connects the sixth wire, the third ES isolating switch is closed, and then the first electric phase-selective isolating switch and the first wire are connected, so that the power frequency withstand voltage test equipment is connected to the power supply wire, and then the experiment is started according to the equipment instructions, and so on, to complete all the power frequency withstand voltage tests.
[0016] Step 3: During the lightning impulse test, the first electric phase-selective isolating switch connects the second conductor. The remaining operating steps are the same as those of the power frequency withstand voltage test, and the internal switching is completed by the industrial computer throughout the process.
[0017] Compared with the prior art, a fully automatic intelligent insulation test equipment using the above technical solution has the following beneficial effects:
[0018] 1. The staff will first connect the terminal B of the test product to the eighth conductor, and then the staff will selectively close the first electric phase-selective isolating switch. The first electric phase-selective isolating switch can only connect the power frequency withstand voltage test equipment or the lightning impulse test equipment at a time. Since the first electric phase-selective isolating switch is equipped with an electric Caodong mechanism, it can control the closing and opening of each phase switch separately, and can select to conduct power frequency withstand voltage test and lightning impulse test separately, and can complete power frequency withstand voltage test and lightning impulse test with one key sequential control. The skill is applicable to complete sets of switchgear of various specifications, and can also be applicable to various switch components that require insulation testing, and can adapt to various diversified scenarios;
[0019] Second, the interactive connecting rod between the first ES disconnector and the second ES disconnector can ensure the safety of the equipment and prevent the high-voltage lead and the ground wire from being connected to the same terminal at the same time, thereby increasing the safety during the test;
[0020] 3. The test sample is connected to the seventh isolating switch through the tenth conductor and to the ninth isolating switch through the twelfth conductor. The two isolating switches are connected to the sixth conductor respectively, forming a parallel connection. The test sample is also connected to the third ES isolating switch through the outgoing conductor, which is connected to the ground wire, and the ground wire is connected to a fixed conductor. Finally, the fixed conductor is connected to the first ES isolating switch. Through reasonable conductor layout and the use of isolating switches, the reliability of the system can be improved and the downtime caused by maintenance or failure can be reduced;
[0021] 4. When the test product needs to be maintained or repaired, the current can be cut off by operating the corresponding isolating switch to ensure the safety of the staff. If a fault occurs in the test product or the line connected to it, the relevant isolating switch can be used to isolate the faulty part to prevent the fault from spreading to other areas. When a fault occurs, the specific location of the fault can be determined by operating the isolating switch, so as to respond and repair it quickly. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a three-dimensional schematic diagram of an embodiment.
[0023] Figure 2 Schematic diagram of connecting the wire and the fifth wire in the embodiment.
[0024] Figure 3 FIG. 1 is a schematic diagram of the eleventh wire and the sixth wire in the embodiment.
[0025] Figure 4 FIG. 4 is a schematic diagram of the second conductive line and the third conductive line in the embodiment.
[0026] Figure 5 It is a schematic diagram of the test sample and the tenth conductor in the embodiment.
[0027] Figure 6 Schematic diagram of the circuit of the embodiment.
[0028] Figure 7 Schematic diagram of the working process of the embodiment.
[0029] In the figure: 1, power supply wire; 2, first electric phase-selective isolating switch; 3, power frequency withstand voltage test equipment; 4, lightning impulse test equipment; 5, first wire; 6, second wire; 7, third wire; 8, fourth wire; 9, second electric phase-selective isolating switch; 10, connecting wire; 11, first ES isolating switch; 12, third electric phase-selective isolating switch; 13, fifth wire; 14, fifth isolating switch; 15, eighth wire; 16, fixed wire; 17, test piece; 18, seventh wire; 19, ninth wire; 20, fourth isolating switch; 21, sixth isolating switch; 22, installation wire; 23, tenth wire; 24, eleventh wire; 25, twelfth wire; 26, seventh isolating switch; 27, eighth isolating switch; 28, ninth isolating switch; 29, sixth wire; 30, second ES isolating switch; 31, outgoing wire; 32, third ES isolating switch; 33, ground wire. DETAILED DESCRIPTION
[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
[0031] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a fully automatic intelligent insulation test equipment comprises a power supply wire 1, a first electric phase-selective isolating switch 2 is fixed at one end of the power supply wire 1, a first wire 5 is fixed on one side of the first electric phase-selective isolating switch 2, a second wire 6 is fixed on the other side of the first electric phase-selective isolating switch 2, a power frequency withstand voltage test equipment 3 is fixed at one end of the first wire 5, a lightning impulse test equipment 4 is fixed at one end of the second wire 6, a third wire 7 is fixed on one side of the power frequency withstand voltage test equipment 3, a fourth wire 8 is fixed on one side of the lightning impulse test equipment 4, a second electric phase-selective isolating switch 9 is fixed on the other end of the third wire 7, and a lightning impulse isolating switch 9 is fixed on the other end of the third wire 7. A fourth conductor 8 is fixed to one side of the experimental equipment 4, one side of the second electric phase-selective isolating switch 9 is fixed to the other end of the fourth conductor 8, a connecting conductor 10 is fixed to one side of the second electric phase-selective isolating switch 9, one end of the connecting conductor 10 is provided with a third electric phase-selective isolating switch 12, one side of the third electric phase-selective isolating switch 12 is provided with a first ES isolating switch 11, a fifth conductor 13 is fixed to one side of the third electric phase-selective isolating switch 12, the other end of the fifth conductor 13 is fixed with a fifth isolating switch 14, an eighth conductor 15 is provided on one side of the fifth isolating switch 14, and a test piece 17 is provided at the other end of the eighth conductor 15.
[0032] During use, the staff will first connect the terminal B of the test piece 17 to the eighth conductor 15, and then the staff will selectively close the first electric phase-selective isolating switch 2. The first electric phase-selective isolating switch 2 can only be connected to the power frequency withstand voltage test equipment 3 or the lightning impulse test equipment 4 at a time. Since the first electric phase-selective isolating switch 2 is equipped with an electric Caodong mechanism, the closing and opening of each phase knife switch can be controlled individually, and the power frequency withstand voltage test and lightning impulse test can be selected individually, and the power frequency withstand voltage test and lightning impulse test can be completed by one-click sequential control. The skill is suitable for complete sets of switchgear of various specifications, and can also be applied to various switch components that require insulation testing, and can adapt to various diversified scenarios.
[0033] like Figure 1-Figure 3 As shown, a seventh wire 18 is connected to one side of the test piece 17, and a fourth isolating switch 20 is fixed to one end of the seventh wire 18; a ninth wire 19 is connected to one side of the test piece 17, and a sixth isolating switch 21 is fixed to one end of the ninth wire 19; installation wires 22 are provided on one side of the fourth isolating switch 20 and the sixth isolating switch 21, and one end of the installation wire 22 is connected to the fifth wire 13; an eleventh wire 24 is provided on one side of the test piece 17, and an eighth isolating switch 27 is fixed to one end of the eleventh wire 24; a sixth wire 29 is fixed to one side of the eighth isolating switch 27, and a second ES isolating switch 30 is fixed to one end of the sixth wire 29.
[0034] During use, the interactive link between the first ES disconnector 11 and the second ES disconnector 30 can ensure the safety of the equipment, prevent the high voltage lead and the ground wire 33 from being connected to the same terminal at the same time, and increase the safety during testing.
[0035] like Figure 1 and Figure 5 As shown, a tenth conductor 23 is fixed to one side of the test piece 17, a seventh isolating switch 26 is fixed to one end of the tenth conductor 23, a twelfth conductor 25 is provided on one side of the test piece 17, a ninth isolating switch 28 is fixed to one end of the twelfth conductor 25, conductors are provided on one side of the ninth isolating switch 28 and the seventh isolating switch 26, a sixth conductor 29 is connected to one end of the two conductors, an outgoing conductor 31 is provided on one side of the test piece 17, a third ES isolating switch 32 is provided at one end of the outgoing conductor 31, a ground wire 33 is provided on one side of the third ES isolating switch 32, a fixed conductor 16 is connected to the ground wire 33, and one end of the fixed conductor 16 is fixed to one side of the first ES isolating switch 11.
[0036] In use, the test piece 17 is connected to the seventh isolating switch 26 through the tenth conductor 23, and is connected to the ninth isolating switch 28 through the twelfth conductor 25. The two isolating switches are respectively connected to the sixth conductor 29 by conductors to form a parallel connection. The test piece 17 is also connected to the third ES isolating switch 32 through the outgoing conductor 31, and the switch is connected to the ground wire 33. The ground wire 33 is connected to the fixed conductor 16. Finally, the fixed conductor 16 is connected to the first ES isolating switch 11. Through reasonable conductor layout and the use of isolating switches, the reliability of the system can be improved and the downtime caused by maintenance or failure can be reduced.
[0037] like Figure 1 , Figure 5 and Figure 6 As shown, one side of the test sample 17 is provided with a plurality of outgoing lead terminals, which can be divided into A, B, C, a, b, c, and E2. The outgoing lead terminal A is connected to the seventh wire 18, the outgoing lead terminal B is connected to the eighth wire 15, the outgoing lead terminal C is connected to the ninth wire 19, the outgoing lead terminal a is connected to the tenth wire 23, the outgoing lead terminal b is connected to the eleventh wire 24, the outgoing lead terminal c is connected to the twelfth wire 25, the outgoing lead terminal E2 is connected to the outgoing wire 31, and the ground wire 33 and the outgoing lead terminals on one side of the food 17 are all made of high-voltage soft-core cables.
[0038] During use, when the test piece 17 needs to be maintained or repaired, the current can be cut off by operating the corresponding isolating switch to ensure the safety of the staff. If a fault occurs in the test piece 17 or the line connected to it, the relevant isolating switch can be used to isolate the faulty part to prevent the fault from spreading to other areas. When a fault occurs, the specific location of the fault can be determined by operating the isolating switch, so as to quickly respond and repair it.
[0039] A fully automatic intelligent insulation test method, the specific steps are as follows:
[0040] Step 1: The staff will first connect the terminals A, B, C, a, b, c, and E2 of the test product 17 to the seventh wire 18, the eighth wire 15, the ninth wire 19, the tenth wire 23, the eleventh wire 24, the twelfth wire 25, and the outgoing wire 31 of the experimental equipment respectively.
[0041] Step 2. When the power frequency withstand voltage test of phase 17A of the test piece needs to be closed phase to phase to ground, the industrial computer controls the second electric phase-selective isolating switch 9 to connect the third wire 7, the third electric phase-selective isolating switch 12 to connect the fifth wire 13, and then the fourth isolating switch 20, the ninth isolating switch 28 and the eighth isolating switch 27 are closed, and then the second ES isolating switch 30 connects the sixth wire 29, the third ES isolating switch 32 is closed, and then the first electric phase-selective isolating switch 2 and the first wire 5 are connected, so that the power frequency withstand voltage test equipment 3 is connected to the power supply wire 1, and then the experiment is started according to the equipment instructions, and so on, to complete all the power frequency withstand voltage tests.
[0042] Step 3: During the lightning impulse test, the first electric phase-selective isolating switch 2 is connected to the second conductor 6. The remaining operation steps are the same as those of the power frequency withstand voltage test, and the internal switching is completed by the industrial computer throughout the process.
[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A fully automatic intelligent insulation test equipment, comprising a power supply conductor 1, characterized in that: A first electric phase-selective isolating switch 2 is fixed to one end of the power supply conductor 1, a first conductor 5 is fixed to one side of the first electric phase-selective isolating switch 2, a second conductor 6 is fixed to the other side of the first electric phase-selective isolating switch 2, a power frequency withstand voltage test device 3 is fixed to one end of the first conductor 5, a lightning impulse test device 4 is fixed to one end of the second conductor 6, a third conductor 7 is fixed to one side of the power frequency withstand voltage test device 3, a fourth conductor 8 is fixed to one side of the lightning impulse test device 4, a second electric phase-selective isolating switch 9 is fixed to the other end of the third conductor 7, a third conductor 7 is fixed to one side of the lightning impulse test device 4, and a fourth conductor 8 is fixed to one side of the lightning impulse test device 4. Four conductors 8, one side of the second electric phase-selective isolating switch 9 is fixed to the other end of the fourth conductor 8, one side of the second electric phase-selective isolating switch 9 is fixed with a connecting conductor 10, one end of the connecting conductor 10 is provided with a third electric phase-selective isolating switch 12, one side of the third electric phase-selective isolating switch 12 is provided with a first ES isolating switch 11, one side of the third electric phase-selective isolating switch 12 is fixed with a fifth conductor 13, the other end of the fifth conductor 13 is fixed with a fifth isolating switch 14, one side of the fifth isolating switch 14 is provided with an eighth conductor 15, and the other end of the eighth conductor 15 is provided with a test piece 17.
2. The fully automatic intelligent insulation test equipment according to claim 1 is characterized in that: A seventh wire 18 is connected to one side of the test piece 17, and a fourth isolating switch 20 is fixed to one end of the seventh wire 18. A ninth wire 19 is connected to one side of the test piece 17, and a sixth isolating switch 21 is fixed to one end of the ninth wire 19. An installation wire 22 is provided on one side of each of the fourth isolating switch 20 and the sixth isolating switch 21, and one end of the installation wire 22 is connected to the fifth wire 13.
3. The fully automatic intelligent insulation test equipment according to claim 1 is characterized in that: An eleventh wire 24 is provided on one side of the test piece 17 , an eighth isolating switch 27 is fixed to one end of the eleventh wire 24 , a sixth wire 29 is fixed to one side of the eighth isolating switch 27 , and a second ES isolating switch 30 is fixed to one end of the sixth wire 29 .
4. The fully automatic intelligent insulation test equipment according to claim 3 is characterized in that: A tenth conductor (23) is fixed to one side of the test piece (17), a seventh isolating switch (26) is fixed to one end of the tenth conductor (23), a twelfth conductor (25) is provided on one side of the test piece (17), a ninth isolating switch (28) is fixed to one end of the twelfth conductor (25), conductors are provided on one side of the ninth isolating switch (28) and the seventh isolating switch (26), and the sixth conductor (29) is connected to one end of the two conductors.
5. The fully automatic intelligent insulation test equipment according to claim 1 is characterized in that: An outgoing wire (31) is provided on one side of the test piece (17), a third ES isolating switch (32) is provided on one end of the outgoing wire (31), a ground wire (33) is provided on one side of the third ES isolating switch (32), a fixed wire (16) is connected to the ground wire (33), and one end of the fixed wire (16) is fixed to one side of the first ES isolating switch (11).
6. The fully automatic intelligent insulation test equipment according to claim 1 is characterized in that: A plurality of lead-out terminals are provided on one side of the test piece (17), and the lead-out terminals can be divided into A, B, C, a, b, c, and E2.
7. The fully automatic intelligent insulation test equipment according to claim 6 is characterized in that: The outlet lead terminal A is connected to the seventh wire (18), the outlet lead terminal B is connected to the eighth wire (15), the outlet lead terminal C is connected to the ninth wire (19), the outlet lead terminal a is connected to the tenth wire (23), the outlet lead terminal b is connected to the eleventh wire (24), the outlet lead terminal c is connected to the twelfth wire (25), and the outlet lead terminal E2 is connected to the outlet wire (31).
8. The fully automatic intelligent insulation test equipment according to claim 5 is characterized in that: The ground wire (33) and the lead-out terminal on one side of the test piece (17) are both made of high-voltage soft-core cables.
9. According to the fully automatic intelligent insulation test method of claim 1, the specific steps are as follows: Step 1: The staff will first connect the terminals A, B, C, a, b, c, E (2) of the test piece (17) to the seventh wire (18), the eighth wire (15), the ninth wire (19), the tenth wire (23), the eleventh wire (24), the twelfth wire (25), and the outgoing wire (31) of the experimental equipment respectively; Step 2: When the power frequency withstand voltage test of phase A of the test piece (17) needs to be closed phase to phase, the industrial control computer controls the second electric phase-selective isolating switch (9) to connect the third wire (7), the third electric phase-selective isolating switch (12) to connect the fifth wire (13), and then the fourth isolating switch (20), the ninth isolating switch (28) and the eighth isolating switch (27) are closed, and then the second ES isolating switch (30) is connected to the sixth wire (29), the third ES isolating switch (32) is closed, and then the first electric phase-selective isolating switch (2) and the first wire (5) are connected, so that the power frequency withstand voltage test equipment (3) is connected to the power supply wire (1), and then the experiment is started according to the equipment instructions, and so on, to complete all the power frequency withstand voltage tests; Step 3: During the lightning impulse test, the first electric phase-selecting isolating switch (2) is connected to the second conductor (6). The remaining operation steps are the same as those of the power frequency withstand voltage test, and the internal switching is completed by the industrial control computer throughout the process.