CN220961575U - Auxiliary device for handcart switch alternating-current withstand voltage test - Google Patents
Auxiliary device for handcart switch alternating-current withstand voltage test Download PDFInfo
- Publication number
- CN220961575U CN220961575U CN202321850557.5U CN202321850557U CN220961575U CN 220961575 U CN220961575 U CN 220961575U CN 202321850557 U CN202321850557 U CN 202321850557U CN 220961575 U CN220961575 U CN 220961575U
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- Prior art keywords
- wire
- shorting
- handcart switch
- withstand voltage
- test
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- 238000012360 testing method Methods 0.000 title claims abstract description 52
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910052802 copper Inorganic materials 0.000 claims abstract description 35
- 239000010949 copper Substances 0.000 claims abstract description 35
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 8
- 239000004593 Epoxy Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The utility model relates to the technical field of test and test, and discloses an auxiliary device for a handcart switch alternating-current withstand voltage test, which comprises a short-circuit device, an alarm device and a grounding wire; the short circuit device is connected with the handcart switch, the alarm device is fixedly connected to the short circuit device, and one end of the grounding wire is grounded; test efficiency is improved: the traditional bare copper wire is required to be wound on the switch contact finger and straightened, the process time is longer, and the device only needs to pull two copper plates apart and clamp the two copper plates on the contact finger, so that the test efficiency is greatly improved; and is safer and more reliable. The copper wire is replaced by the copper plate, so that the broken wire ends can be prevented from leaving the switch contacts. The alarm device can remind irrelevant personnel to keep away from, can remind the test personnel to demolish the short circuit device after experimental simultaneously.
Description
Technical Field
The utility model relates to the technical field of test, in particular to an auxiliary device for a handcart switch alternating current withstand voltage test.
Background
In operation of the handcart switch, the insulating medium is subjected to the effects of an electric field, vibration and the like for a long time, the insulating medium can be aged and deteriorated slowly, the voltage of an alternating-current withstand voltage test is higher than the operation voltage, and after the handcart switch passes through alternating-current withstand voltage, the equipment has a large safety operation margin, so that an alternating-current withstand voltage test item is the most direct and effective method for testing the insulating strength of the handcart switch and is an important item for preventive test of electrical equipment.
The handcart switch is divided into an upper three-phase contact and a lower three-phase contact, an alternating-current withstand voltage test of the handcart switch is divided into an integral grounding withstand voltage test and an inter-fracture withstand voltage test, and the integral withstand voltage needs to be used for switching on the switch, and the ABC three-phase six contacts are in short circuit and high voltage. The pressure resistance between the fracture is that the switch is at the opening position, the upper ABC three-phase contact is in short circuit and pressurized, and the lower ABC three-phase contact is in short circuit and grounded.
At present, when the handcart switch is used for alternating-current withstand voltage and shorting contacts, bare copper wires are wound on ABC three-phase contacts, the bare copper wires are thinner, the bare copper wires are required to be straightened, copper wires which are broken easily in the process of winding or disassembling the bare copper wires are left on the contacts, even the handcart switch forgets to disassemble a shorting bar after alternating-current withstand voltage is achieved, and equipment faults and even personal safety are endangered if the handcart switch is put into operation without finding the handcart switch.
Disclosure of utility model
The purpose of the utility model is that: the auxiliary device for the alternating-current withstand voltage test of the handcart switch can improve test efficiency and ensure personal safety during the alternating-current withstand voltage test.
In order to achieve the above purpose, the utility model provides an auxiliary device for handcart switch alternating current withstand voltage test, which comprises a short circuit device, an alarm device and a grounding wire; the short circuit device is connected with the handcart switch, the alarm device is fixedly connected to the short circuit device, and one end of the grounding wire is grounded.
Preferably, the shorting device comprises an upper port shorting device, a lower port shorting device and a shorting line, wherein the upper port shorting device is connected with the lower port shorting device through the shorting line.
Preferably, the shorting stub comprises a copper wire with an insulating sheath and a wire clamp, wherein two ends of the copper wire are respectively connected with the upper port shorting device and the lower port shorting device through the wire clamp.
Preferably, the upper port short-circuiting device and the lower port short-circuiting device comprise an upper copper plate, a lower copper plate and a spring; the upper copper plate and the lower copper plate are connected through the spring.
Preferably, the alarm device comprises an alarm lamp and a buzzer, wherein the bottom of the alarm lamp is connected with the buzzer, and the buzzer is connected with the upper opening short-circuit device through an epoxy resin insulating plate.
Further preferably, the thickness of the epoxy resin insulating plate is 1cm.
Preferably, one end of the grounding wire is provided with three wire clamps, and the other end of the grounding wire is provided with one wire clamp;
Further preferably, the ground line is configured to: one wire clamp of one end of the three wire clamps is clamped at the grounding point of the alternating current voltage withstand device, and the other two wire clamps are grounded; one end of a wire clamp is clamped on the handcart switch shell;
Further preferably, the ground wire is configured to: one end of each of the three wire clamps is respectively clamped at the grounding points of the lower port short circuit device, the handcart switch shell and the alternating current voltage withstand device, and the other end of each wire clamp is grounded.
Preferably, a power supply port is formed in one side of the alarm lamp, and a button cell is arranged at the power supply port.
Compared with the prior art, the auxiliary device for the alternating-current withstand voltage test of the handcart switch has the beneficial effects that:
(1) Test efficiency is improved: traditional bare copper wire need twine bare copper wire touch finger and stretch straight, and the process time is longer, and this device only need pull open two copper, press from both sides on touch finger can, improved test efficiency greatly.
(2) The safety and reliability are improved; the copper wire is replaced by the copper plate, so that the broken wire ends can be prevented from leaving the switch contacts. The alarm device can remind irrelevant personnel to keep away from, can remind the test personnel to demolish the short circuit device after experimental simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an auxiliary device for AC withstand voltage test of a handcart switch according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an embodiment of the present utility model when performing an overall compressive test;
FIG. 3 is a schematic diagram of an embodiment of the present utility model when performing an inter-fracture pressure test;
fig. 4 is a schematic diagram of a handcart switch according to an embodiment of the present utility model.
In the figure, 101, copper plate; 102. a lower copper plate; 103. a shorting bar; 104. a spring; 201. a buzzer; 202. an epoxy insulating plate; 203. an alarm lamp; 300. a ground wire; 400. handcart switch shell.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, 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 application will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, fig. 1 is a schematic diagram of an auxiliary device for ac voltage withstand test of a handcart switch according to a preferred embodiment of the present utility model; the auxiliary device comprises a short circuit device, an alarm device and a grounding wire 300; the short circuit device is connected with the handcart switch, the alarm device is fixedly connected to the short circuit device, and one end of the grounding wire 300 is grounded.
It can be seen that the shorting device includes an upper port shorting device, a lower port shorting device, and a shorting line 103, where the upper port shorting device and the lower port shorting device have the same structure and each include an upper copper plate 101, a lower copper plate 102, and a spring 104, where the upper copper plate 101 and the lower copper plate 102 are connected by the spring 104. When the upper port short-circuiting device is used, the upper copper plate 101 and the lower copper plate 102 of the upper port short-circuiting device are pulled apart and are released after being placed at the position of a switch contact, and the upper port short-circuiting device can be clamped on an upper port three-phase contact to enable the upper port three-phase contact to be in short circuit. The three-phase contact of the lower port can be short-circuited by the same way; the upper port shorting device and the lower port shorting device can be shorted by shorting wire 103.
The alarm device comprises an alarm lamp 203 and a buzzer 201, wherein the buzzer 201 is connected to the bottom of the alarm lamp 203, and the buzzer 201 is connected with the upper opening short circuit device through an epoxy resin insulating plate 202. And alarm device is DC power supply, and alarm lamp 203 one side is equipped with the power supply mouth, through two button cell power supplies, can remind irrelevant personnel to keep away from during the test, can remind the test personnel to demolish shorting device after the test simultaneously.
Specifically, the thickness of the epoxy insulating plate 202 is set to be 1CM, so that the alarm device cannot be contacted with the short-circuit device to cause accidents.
The ground wire 300 is provided with three clamps at one end and one clamp at the other end, and the clamping position of the clamps is specifically set according to the test conditions.
For better experiments, referring to fig. 4, fig. 4 is a schematic diagram of a handcart switch in the embodiment of the utility model, it can be seen that the handcart switch is divided into 6 contacts, namely an upper-port three-phase contact and a lower-port three-phase contact, and the handcart switch alternating-current withstand voltage test is divided into an integral grounding withstand voltage test and an inter-fracture withstand voltage test, and the integral withstand voltage needs to switch on the switch, and the ABC three-phase six contacts are short-circuited and high-voltage. The pressure resistance between the fracture is that the switch is at the opening position, the upper ABC three-phase contact is in short circuit and pressurized, and the lower ABC three-phase contact is in short circuit and grounded.
To better see how the ground line 300 is arranged in different situations, with reference to figures 2 and 3,
FIG. 2 is a schematic diagram of an embodiment of the present utility model when performing an overall compressive test; it can be seen that when the whole handcart switch is subjected to alternating current voltage withstand to the ground, the handcart switch is switched on, the upper copper plate 101 and the lower copper plate 102 of the upper opening short circuit device are pulled open and are released after being placed at the position of the switch contact, and thus the short circuit device can be clamped on the upper opening three-phase contact, so that the upper opening three-phase contact is in short circuit. And similarly, the three-phase contact of the lower port is shortened. The upper port shorting device and the lower port shorting device are shorted by shorting wire 103, and one end of grounding wire 300 is respectively clamped at grounding points of handcart switch housing 400 and the alternating current voltage withstand device, and the other end is grounded. After the auxiliary device is installed, a switch of the alarm device is turned on, and a high-voltage output end of the alternating-current withstand voltage tester is clamped on the upper-port short-circuit device or the lower-port short-circuit device copper plate, so that the whole alternating-current withstand voltage test of the handcart switch can be carried out.
Fig. 3 is a schematic diagram of an embodiment of the present utility model when a withstand voltage test between fracture is performed, and it can be seen that when an ac withstand voltage test between fracture of a handcart switch is performed, the handcart switch is first placed in a separated position, the upper copper plate 101 and the lower copper plate 102 of the upper port shorting device are pulled open, and the hand is released after the shorting device is placed at the position of the switch contact, so that the shorting device can be clamped on the upper port three-phase contact, and the upper port three-phase contact is shorted. And similarly, the three-phase contact of the lower port is shortened. The shorting stub 103 between the upper port shorting device and the lower port shorting device is removed, and one end of the grounding wire 300, which is provided with three wire clamps, is respectively clamped at the grounding points of the lower port shorting device, the handcart switch housing 400 and the alternating current voltage withstanding device, and the other end is grounded. After the auxiliary device is installed, a switch of the alarm device is turned on, and the high-voltage output end of the alternating-current withstand voltage tester is clamped on the copper plate of the upper-port short-circuit device, so that an alternating-current withstand voltage test between the breaks of the handcart switch can be performed.
In summary, the embodiment of the utility model provides an auxiliary device for a handcart switch alternating current withstand voltage test, which improves test efficiency, a traditional bare copper wire needs to be wound on a switch contact finger and straightened, the process is longer, and the device only needs to pull two copper plates open and clamp the two copper plates on the contact finger, thereby greatly improving test efficiency; and the copper wire replacement is safer and more reliable, and the copper wire replacement by the copper plate can avoid the broken wire ends to leave the switch contacts. The alarm device can remind irrelevant personnel to keep away from, can remind the test personnel to demolish the short circuit device after experimental simultaneously.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (7)
1. The auxiliary device for the handcart switch alternating-current withstand voltage test is characterized by comprising a short-circuit device, an alarm device and a grounding wire;
The short circuit device is connected with the handcart switch, the alarm device is fixedly connected to the short circuit device, and one end of the grounding wire is grounded.
2. The auxiliary device for a handcart switch alternating current withstand voltage test according to claim 1, wherein the shorting device comprises an upper port shorting device, a lower port shorting device and a shorting wire, and the upper port shorting device and the lower port shorting device are connected through the shorting wire.
3. The auxiliary device for the handcart switch alternating current withstand voltage test according to claim 2, wherein the shorting wire comprises a copper wire with an insulating sheath and a wire clamp, and two ends of the copper wire are respectively connected with the upper port shorting device and the lower port shorting device through the wire clamp.
4. The auxiliary device for the alternating current withstand voltage test of the handcart switch according to claim 2, wherein the upper port short-circuiting device and the lower port short-circuiting device comprise an upper copper plate, a lower copper plate and a spring; the upper copper plate and the lower copper plate are connected through the spring.
5. The auxiliary device for the alternating-current withstand voltage test of the handcart switch according to claim 4, wherein the alarm device comprises an alarm lamp and a buzzer, the bottom of the alarm lamp is connected with the buzzer, and the buzzer is connected with the upper port short-circuit device through an epoxy resin insulating plate.
6. The auxiliary device for the alternating current withstand voltage test of the handcart switch according to claim 5, wherein one end of the grounding wire is provided with three wire clamps, and the other end of the grounding wire is provided with one wire clamp;
The ground line is configured to: one wire clamp of one end of the three wire clamps is clamped at the grounding point of the alternating current voltage withstand device, and the other two wire clamps are grounded; one end of a wire clamp is clamped on the handcart switch shell;
The ground wire is configured to: one end of each of the three wire clamps is respectively clamped at the grounding points of the lower port short circuit device, the handcart switch shell and the alternating current voltage withstand device, and the other end of each wire clamp is grounded.
7. The auxiliary device for the alternating current withstand voltage test of the handcart switch according to claim 5, wherein a power supply port is arranged on one side of the alarm lamp, and a button battery is arranged at the power supply port.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321850557.5U CN220961575U (en) | 2023-07-13 | 2023-07-13 | Auxiliary device for handcart switch alternating-current withstand voltage test |
| DE202023106179.6U DE202023106179U1 (en) | 2023-07-13 | 2023-10-25 | Auxiliary device for testing the AC voltage resistance of a handcart switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321850557.5U CN220961575U (en) | 2023-07-13 | 2023-07-13 | Auxiliary device for handcart switch alternating-current withstand voltage test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220961575U true CN220961575U (en) | 2024-05-14 |
Family
ID=89168356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321850557.5U Active CN220961575U (en) | 2023-07-13 | 2023-07-13 | Auxiliary device for handcart switch alternating-current withstand voltage test |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN220961575U (en) |
| DE (1) | DE202023106179U1 (en) |
-
2023
- 2023-07-13 CN CN202321850557.5U patent/CN220961575U/en active Active
- 2023-10-25 DE DE202023106179.6U patent/DE202023106179U1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE202023106179U1 (en) | 2023-11-24 |
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