CN213181871U - Quick switching device for withstand voltage test of three-phase alternating-current motor - Google Patents
Quick switching device for withstand voltage test of three-phase alternating-current motor Download PDFInfo
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- CN213181871U CN213181871U CN202022144260.XU CN202022144260U CN213181871U CN 213181871 U CN213181871 U CN 213181871U CN 202022144260 U CN202022144260 U CN 202022144260U CN 213181871 U CN213181871 U CN 213181871U
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Abstract
The utility model discloses a rapid switching device for withstand voltage test of a three-phase alternating current electric appliance, which comprises a withstand voltage conversion tool; a quick input connector used for connecting a voltage withstanding instrument is arranged at the circuit inlet end of the voltage withstanding conversion tool; and a quick output connector used for connecting a three-phase alternating current electric appliance to be tested is arranged at the circuit outlet end of the voltage-resistant conversion tool. This three-phase AC ware withstand voltage test fast switch device utilizes quick input connector and quick output connector to realize withstand voltage conversion frock at withstand voltage appearance and the three-phase AC electrical apparatus between the quick connection that awaits measuring, withstand voltage conversion frock is inside to be equipped with many and the three-phase AC electrical apparatus's that awaits measuring logical circuit corresponds's that awaits measuring wiring circuit, the accessible selects different wiring circuit to realize the wiring route of the withstand voltage appearance of quick replacement and the three-phase AC electrical apparatus that awaits measuring, avoid short-circuit repeatedly in the same three-phase AC electrical apparatus's that awaits measuring withstand voltage test, improve test efficiency and security.
Description
Technical Field
The utility model relates to a withstand voltage test field especially relates to a three-phase AC ware withstand voltage test fast switching control equipment.
Background
The locomotive vehicles, including passenger train vehicles, motor train units, subways, urban rail trains and the like, are controlled by an auxiliary machine, a ground power supply system, a lighting system and the like through a three-phase alternating current power supply screen cabinet. In the process of maintenance and manufacturing, a power frequency withstand voltage test needs to be carried out on the circuits of U-PE, V-PE, W-PE and U-V, V-W, U-W in the three-phase alternating current power supply panel cabinet to ensure the reliability of the insulation performance of the three-phase alternating current power supply panel cabinet.
The common power frequency withstand voltage test method for the three-phase alternating current power supply panel cabinet mainly adopts short-circuit wires to be connected step by step and test U-PE, V-PE, W-PE and U-V, V-W, U-W circuits of the three-phase alternating current power supply panel cabinet, and the power frequency withstand voltage test method has the following defects:
1. need to carry out many times short circuit to U, V, W, N, PE correlation circuit in the power supply cabinet of being surveyed, it is long to consume time, and is inefficient.
2. The special wiring tool is not provided, the quality of the on-site temporary manufactured short wiring is not reliable, the problem of discharge and ignition is easy to occur during power frequency withstand voltage test, and the test safety of the tested screen cabinet is threatened.
3. After the power frequency withstand voltage test, the temporary short-circuit wire is removed, and the leakage risk exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a three-phase AC electrical apparatus withstand voltage test fast switching device can realize withstand voltage appearance and the different wiring circuit's of the three-phase AC electrical apparatus that awaits measuring quick-operation joint and dismantlement.
In order to achieve the purpose, the utility model provides a rapid switching device for a withstand voltage test of a three-phase alternating current motor, which comprises a withstand voltage conversion tool; a quick input connector used for connecting a voltage withstanding instrument is arranged at the circuit inlet end of the voltage withstanding conversion tool; and a quick output connector used for connecting a three-phase alternating current electric appliance to be tested is arranged at the circuit outlet end of the voltage-resistant conversion tool.
Preferably, the pressure-resistant conversion tool comprises a tool shell and a plurality of circuits arranged in the tool shell; all the circuits are used for corresponding to a plurality of wiring paths of the three-phase alternating current electric appliance to be tested one by one respectively; and the outer surface of the tool shell is provided with operation parts which correspond to all the circuits one to one.
Preferably, all of the circuits are provided on the circuit board.
Preferably, the operating part is a knob having a plurality of adjustment positions; all the adjusting gears correspond to all the circuits one by one.
Preferably, all the adjusting gears comprise a U-V wiring gear, a V-W wiring gear, a U-PE wiring gear, a V-PE wiring gear, a W-PE wiring gear, an N-PE wiring gear and a circuit breaking gear.
Preferably, the quick input joint comprises a plurality of first cables and two first quick joints respectively arranged at two ends of all the first cables;
the quick output joint comprises a plurality of second cables and two second quick joints which are respectively arranged at two ends of all the second cables.
Preferably, the first quick connector is any one of a quick electrical connector, a wire combiner and a wire connector.
Preferably, the second quick connector is any one of a quick-connect jumper, an electrical connector, a combiner and a connector.
Compared with the prior art, the utility model provides a three-phase AC ware withstand voltage test fast switch over device includes withstand voltage conversion frock, quick input joint and quick output joint.
The quick input connector and the quick output connector are respectively connected to a circuit inlet end and a circuit outlet end of the voltage-withstanding conversion tool, the other end of the quick input connector is used for connecting a voltage-withstanding instrument, and the other end of the quick output connector is used for connecting a three-phase alternating-current electric appliance to be tested.
The utility model provides an among the three-phase AC electric appliance withstand voltage test quick switching device, utilize quick input joint and quick output joint to realize the high-speed joint of withstand voltage conversion frock between withstand voltage appearance and the three-phase AC electric appliance that awaits measuring. Because the voltage-withstanding conversion tool is internally provided with a plurality of wiring circuits corresponding to the logic circuit to be tested of the three-phase alternating-current electric appliance to be tested, when the voltage-withstanding conversion tool is applied to the voltage-withstanding test of the three-phase alternating-current electric appliance to be tested, the wiring circuits of the voltage-withstanding conversion tool can be selected to realize the quick replacement of the voltage-withstanding instrument and the wiring path of the three-phase alternating-current electric appliance to be tested, the repeated short circuit in the voltage-withstanding test of the same three-phase alternating-current electric appliance to be tested is avoided, so that the safety problems of discharging, ignition and the like are caused.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a fast switching device for a withstand voltage test of a three-phase ac power supply according to an embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides a three-phase ac electric appliance withstand voltage test fast switching device and withstand voltage appearance and the three-phase ac electric appliance's that awaits measuring connection schematic diagram that provides.
The device comprises a pressure resistance instrument 01, a three-phase alternating current appliance to be tested 02, a pressure resistance conversion tool 1, a tool shell 11, a knob 12, a quick input connector 2 and a quick output connector 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a fast switching device for a withstand voltage test of a three-phase ac power supply according to an embodiment of the present invention; fig. 2 is the embodiment of the utility model provides a three-phase ac electric appliance withstand voltage test fast switching device and withstand voltage appearance and the three-phase ac electric appliance's that awaits measuring connection schematic diagram that provides.
The utility model provides a three-phase AC ware withstand voltage test fast switching control equipment, including withstand voltage conversion frock 1, quick input joint 2 and quick output joint 3. The quick input connector 2 and the quick output connector 3 are respectively connected to a circuit inlet end and a circuit outlet end of the voltage-withstanding conversion tool 1.
The quick switching device for the withstand voltage test of the three-phase alternating current appliance is applied to the withstand voltage test of the three-phase alternating current appliance, and can realize quick connection of different wiring circuits of the withstand voltage instrument 01 and the three-phase alternating current appliance 02 to be tested. The three-phase ac appliance 02 to be tested, for example a three-phase ac supply cubicle of a rolling stock, has U, V, W, N, PE five circuits. During the withstand voltage test, the interfaces of the withstand voltage instrument 01 need to be respectively connected with any two circuits of a plurality of circuits of the three-phase alternating current power supply panel cabinet of the locomotive vehicle, so that logic circuits waiting for testing of U-PE, V-PE, W-PE and U-V, U-W, V-W are respectively tested.
The utility model provides an among the three-phase AC ware withstand voltage test quick switching device, be equipped with the wiring circuit of aforementioned logic circuit and the switch that corresponds with the wiring circuit in the withstand voltage conversion frock 1, different switches correspond different logic circuit's wiring circuit. Once the rapid switching device for the withstand voltage test of the three-phase alternating-current apparatus is connected between the withstand voltage instrument 01 and the three-phase alternating-current apparatus 02 to be tested through the rapid input connector 2 and the rapid output connector 3, an operator can selectively switch on wiring circuits of different logic circuits through the switches.
The switch can be a push type structure, a sliding or rotating structure, and the like. Taking a pressing type structure as an example, a plurality of buttons can be arranged on the surface of the voltage-withstanding conversion tool 1, the buttons correspond to a plurality of wiring circuits of the logic circuit to be tested respectively, when an operator presses a certain button, the logic circuit corresponding to the button is connected with the voltage-withstanding instrument 01 and the three-phase alternating-current electric appliance 02 to be tested through the quick input connector 2 and the quick output connector 3.
As for the utility model discloses the quick input joint 2 and the quick output joint 3 that adopt, former person according to withstand voltage appearance 01's interface quantity, the latter is according to the interface quantity of three-phase alternating current apparatus 02 that awaits measuring, can set up to integrated form such as quick electric connector, doubling ware and connect. When the three-phase alternating current apparatus voltage withstand test fast switching device is used for connecting the voltage withstand instrument 01 and the three-phase alternating current apparatus 02 to be tested, the integrated connector is only required to be correspondingly inserted into the interface of the voltage withstand instrument 01 or the interface of the three-phase alternating current apparatus 02 to be tested.
To sum up, the utility model provides a three-phase AC ware withstand voltage test fast switching device utilizes quick input connector 2 and quick output connector 3 to realize withstand voltage conversion frock 1 at withstand voltage appearance 01 and the three-phase AC appliance 02's of awaiting measuring high-speed joint between, withstand voltage conversion frock 1 is inside to be equipped with many and the three-phase AC appliance 02's of awaiting measuring the wiring circuit that logic circuit corresponds, therefore, when utilizing this three-phase AC ware withstand voltage test fast switching device to carry out withstand voltage test, the wiring circuit of accessible selection withstand voltage conversion frock 1 realizes the withstand voltage appearance of quick replacement 01 and the three-phase AC appliance 02's of awaiting measuring wiring path, avoid the short circuit in the same withstand voltage test of three-phase AC appliance 02 of awaiting measuring repeatedly, so that safety problems such as spark-out appear, avoid influencing test efficiency because of many times of short circuit.
The following provides a further description of the fast switching device for withstand voltage test of three-phase ac power device according to the present invention with reference to the accompanying drawings and the embodiments.
On the basis of the above embodiment, the utility model discloses a withstand voltage conversion frock 1 that adopts includes frock casing 11, many sets up the circuit in frock casing 11 and sets up in the operating portion of frock casing 11 surface.
The three-phase alternating current electric appliance 01 to be tested, such as a three-phase alternating current power supply panel cabinet of a locomotive, has U, V, W, N, PE circuit structures, so that the five circuit structures need to be correspondingly connected in pairs during testing so as to test the overvoltage bearing capacity of any two circuit structures. The path formed by combining the above-mentioned two-by-two circuit structures is the wiring path of the three-phase ac electric appliance 01 to be tested in the test operation. The utility model discloses an among the withstand voltage conversion frock 1, all circuits are arranged in respectively with many wiring route one-to-ones of three-phase alternating current electrical apparatus 02 that awaits measuring, with it suitably, set up in the operation portion and all circuit one-to-ones of the surface of frock casing 11 to select one of them to put through in all circuits of withstand voltage conversion frock 1 through the operation portion.
On the basis of the above embodiment, in order to simplify the voltage-withstanding conversion tool 1, all circuits are provided on the circuit board. The circuit board is arranged inside the tool shell, the circuit board is electrically connected with the operation part on the surface of the tool shell, and different circuits on the circuit board can be switched on by adjusting the operation part.
As for the operation part adopted by the utility model, the operation part can be specifically set as a knob 12 with a plurality of adjusting gears; all the adjusting gears correspond to all the circuits one by one. During operation, a regulating gear is set through the knob 12, so that a specific circuit in the withstand voltage converting tool 1 is switched on. When the circuit is switched, no-power operation is required, namely, when the knob 12 is rotated, the pressure resistance instrument 01 is ensured to be in a closed state.
Still taking a three-phase alternating-current power supply panel cabinet of a locomotive as an example, all the adjusting gears in the above embodiment may include a U-V wiring gear, a V-W wiring gear, a U-PE wiring gear, a V-PE wiring gear, a W-PE wiring gear, an N-PE wiring gear, and a circuit breaking gear. Obviously, the U-V wiring gear, the V-W wiring gear, the U-PE wiring gear, the V-PE wiring gear, the W-PE wiring gear and the N-PE wiring gear are used for a withstand voltage test of the three-phase alternating current electric appliance 02 to be tested, and the disconnection gear is used for disconnecting the withstand voltage instrument 01 from the three-phase alternating current electric appliance 02 to be tested. To the concrete wiring diagram of above-mentioned each regulation gear, can refer to the utility model provides a figure 1.
The quick input joint 2 adopted by the utility model can comprise a plurality of first cables and two first quick joints which are respectively arranged at two ends of all the first cables; correspondingly, the utility model discloses a quick output connector 3, then can include many second cables and two second quick-operation joint that set up respectively in whole second cable both ends. In fig. 2, the quick input joint 2 only shows one of the first quick joints, and the quick output joint 3 only shows one of the second quick joints.
The number of the first cables and the number of the second cables depend on the number of the interfaces of the voltage resistance meter 01 and the three-phase alternating-current electric appliance 02 to be tested, respectively. In this embodiment, quick input joint 2 includes two first quick-operation joints, and quick output joint 3 includes two second quick-operation joints, and based on this setting, quick input joint 2's both ends can be with withstand voltage appearance 01 and withstand voltage conversion frock 1's circuit entry end difference high-speed joint, and quick output joint 3's both ends then can with withstand voltage conversion frock 1's circuit exit end and await measuring three-phase alternating current apparatus 02 difference high-speed joint.
Wherein, the first quick coupling is any one of a quick electric connector, a doubling device and a wire connector. The second quick connector is any one of a quick-plug jumper, an electric connector, a doubling device and a wire connector.
The utility model discloses in, withstand voltage conversion frock 1, quick input joint 2 and quick output joint 3 are modular structure, can customize in advance according to different demands, and the application of recombining avoids the quality risk that interim preparation wiring, shorting stub brought. The quick input connector 2 can be safely, reliably and quickly connected and detached with the output end of any power frequency voltage-withstand test equipment; the quick output connector 3 can be safely, quickly and reliably connected with and detached from an U, V, W, N, PE line junction point of the three-phase alternating-current power supply cabinet to be tested.
It is right above the utility model provides a three-phase AC ware withstand voltage test fast switching control equipment has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. A quick switching device for a withstand voltage test of a three-phase alternating current electric appliance is characterized by comprising a withstand voltage conversion tool (1); a quick input connector (2) used for connecting a voltage withstand instrument (01) is arranged at the circuit inlet end of the voltage withstand conversion tool (1); and a quick output connector (3) for connecting a three-phase alternating current electric appliance (02) to be tested is arranged at the circuit outlet end of the voltage-resistant conversion tool (1).
2. The rapid switching device for the withstand voltage test of the three-phase alternating current motor according to claim 1, wherein the withstand voltage converting tooling (1) comprises a tooling shell (11) and a plurality of circuits arranged in the tooling shell (11); all the circuits are used for corresponding to a plurality of wiring paths of the three-phase alternating current electric appliance (02) to be tested one by one respectively; and the outer surface of the tool shell (11) is provided with operation parts which correspond to all the circuits one to one.
3. The rapid switching device for withstand voltage test of the three-phase alternating current motor according to claim 2, wherein all the circuits are disposed on a circuit board.
4. The rapid switching device for withstand voltage test of the three-phase alternating current motor according to claim 2, wherein the operating portion is embodied as a knob (12) having a plurality of adjustment steps; all the adjusting gears correspond to all the circuits one by one.
5. The rapid voltage withstand test switching device for the three-phase alternating current motor according to claim 4, wherein all the adjustment gears comprise a U-V wiring gear, a V-W wiring gear, a U-PE wiring gear, a V-PE wiring gear, a W-PE wiring gear, an N-PE wiring gear and a circuit breaking gear.
6. The rapid switching apparatus for withstand voltage test of three-phase alternating current electric appliance according to any one of claims 1 to 5,
the quick input joint (2) comprises a plurality of first cables and two first quick joints which are respectively arranged at two ends of all the first cables;
the quick output connector (3) comprises a plurality of second cables and two second quick connectors which are arranged at two ends of all the second cables respectively.
7. The apparatus according to claim 6, wherein the first quick connector is any one of a quick electric connector, a wire combiner and a wire connector.
8. The fast switching device for withstand voltage test of three-phase alternating current electric appliance according to claim 6, wherein the second fast joint is any one of a fast plug jumper, an electric connector, a combiner and a connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022144260.XU CN213181871U (en) | 2020-09-25 | 2020-09-25 | Quick switching device for withstand voltage test of three-phase alternating-current motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022144260.XU CN213181871U (en) | 2020-09-25 | 2020-09-25 | Quick switching device for withstand voltage test of three-phase alternating-current motor |
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| CN213181871U true CN213181871U (en) | 2021-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281627A (en) * | 2021-06-04 | 2021-08-20 | 广东电网有限责任公司 | Alternating current withstand voltage test auxiliary device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281627A (en) * | 2021-06-04 | 2021-08-20 | 广东电网有限责任公司 | Alternating current withstand voltage test auxiliary device |
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