CN216285413U - Portable wiring board for high-voltage electrical test of transformer - Google Patents
Portable wiring board for high-voltage electrical test of transformer Download PDFInfo
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- CN216285413U CN216285413U CN202122734328.4U CN202122734328U CN216285413U CN 216285413 U CN216285413 U CN 216285413U CN 202122734328 U CN202122734328 U CN 202122734328U CN 216285413 U CN216285413 U CN 216285413U
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Abstract
The utility model discloses a portable wiring board for a high-voltage electrical test of a transformer, which comprises an insulating bottom plate, wherein the top of the insulating bottom plate is respectively provided with a high-voltage wiring terminal, a medium-voltage wiring terminal and a low-voltage wiring terminal; according to the technical scheme provided by the utility model, the emergency stop protection mechanism is arranged, the normally open switch, the normally closed switch, the connecting wire, the direct-current power supply and the electromagnetic switch are utilized to form the start-stop circuit, the connection and disconnection of the high voltage are controlled through the low voltage, the stop button can be immediately pressed to disconnect the circuit in an emergency situation in the test process, and the safety of a tester is protected.
Description
Technical Field
The utility model relates to the technical field of high-voltage electricity, in particular to a convenient wiring board for a high-voltage electricity test of a transformer.
Background
The transformer is an important power device with large quantity and scattered mending in a power grid, in order to ensure the normal operation of the transformer, the transformer with 110kv, 220kv and higher voltage grades needs to be subjected to tests such as voltage resistance, dielectric loss and the like regularly, wiring needs to be changed during the test, and a wiring board convenient for wiring is needed.
The prior art has the following defects or problems:
1. when a wiring board in the existing transformer high-voltage electrical test is used, the wiring board is inconvenient to stop emergently in the test process, potential safety hazards exist, and people can be injured;
2. the existing transformer high-voltage electrical test has poor heat dissipation due to the action of high-voltage current, and the protective shell is possibly burnt to cause electric leakage due to heat generated by the current in the test process, so that potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a convenient wiring board for a high-voltage electrical test of a transformer aiming at the defects in the prior art so as to solve the problems in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme:
a high-voltage electrical test portable wiring board of a transformer comprises an insulating bottom plate, wherein a high-voltage wiring terminal, a medium-voltage wiring terminal and a low-voltage wiring terminal are respectively arranged at the top of the insulating bottom plate, a high-voltage shielding wire wiring terminal is arranged on one side of the high-voltage wiring terminal, a medium-voltage shielding wire wiring terminal is arranged on one side of the medium-voltage wiring terminal, a low-voltage shielding wire wiring terminal is arranged on one side of the low-voltage wiring terminal, heat-conducting silica gel is arranged at the top of the insulating bottom plate, an insulating shell is fixedly connected to the top of the insulating bottom plate, and an emergency stop protection mechanism is arranged on one side of the insulating shell;
scram protection mechanism includes protection switch seat, normally open switch, normally closed switch, connecting wire, DC power supply, electromagnetic switch, DC power supply sets up in insulating casing one side, electromagnetic switch sets up at the DC power supply top, the connecting wire sets up in electromagnetic switch one side, the protection switch seat sets up in connecting wire one end, normally open switch and normally closed switch all set up inside the protection switch seat.
Optionally, the high-voltage wiring terminal, the medium-voltage wiring terminal and the low-voltage wiring terminal are all internally provided with terminal blocks, a nut fixing seat is fixedly connected to the top of the terminal block, the nut fixing seat is fixedly connected with a fixing nut inside the nut fixing seat, a fastening bolt is movably mounted inside the fixing nut, an upper pressing block is rotatably connected to the bottom of the fastening bolt, and a lower pressing block is fixedly connected to the bottom of the terminal block.
Optionally, the insulating base plate and the insulating shell are both made of polytetrafluoroethylene materials, and an epoxy resin adhesive layer is arranged inside the insulating shell.
Optionally, the terminal block is respectively arranged inside the high-voltage shielding wire connecting terminal, the medium-voltage shielding wire connecting terminal and the low-voltage shielding wire connecting terminal, and the internal contacts of the high-voltage connecting terminal, the medium-voltage connecting terminal and the low-voltage connecting terminal are electrically connected with each other.
Optionally, the bottom of the upper pressing block is provided with an anti-slip groove, and the anti-slip groove at the bottom of the upper pressing block is semicircular.
Optionally, the dc power supply is electrically connected to the electromagnetic switch, and the normally open switch and the normally closed switch are both electrically connected to the dc power supply.
Compared with the prior art, the utility model provides the convenient wiring board for the high-voltage electrical test of the transformer, which has the following beneficial effects:
1. according to the utility model, the emergency stop protection mechanism is arranged, the normally open switch, the normally closed switch, the connecting wire, the direct-current power supply and the electromagnetic switch are utilized to form the start-stop protection circuit, the connection and disconnection of the high voltage are controlled through the low voltage, no spark is generated when the test circuit is electrified, the stop button can be immediately pressed to disconnect the circuit in an emergency situation in the test process, and the safety of a tester is protected;
2. according to the utility model, the insulating shell, the heat-conducting silicone grease, the epoxy resin layer and the like are arranged, so that heat generated by passing current in a test can be uniformly dispersed through the heat-conducting silicone grease, the shell is protected from electric leakage by utilizing the high-temperature resistance of the epoxy resin, and potential safety hazards are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a partial enlarged view of the utility model at a in fig. 2.
In the figure: 1. an insulating base plate; 101. an insulating housing; 2. a high-voltage wiring terminal; 201. a high-voltage shielded wire connecting terminal; 3. a medium voltage wiring terminal; 301. a medium voltage shielded wire connection terminal; 4. a low-voltage wiring terminal; 401. a low-voltage shielded wire connecting terminal; 5. a protection switch base; 501. a normally open switch; 502. a normally closed switch; 503. a connecting wire; 504. a direct current power supply; 505. an electromagnetic switch; 6. a terminal block; 601. a nut fixing seat; 602. fixing a nut; 603. pressing the block; 604. pressing the blocks; 605. fastening a bolt; 7. thermally conductive silicone.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected through the insides of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-3, in this embodiment: a portable wiring board for a high-voltage electrical test of a transformer comprises an insulating base plate 1, wherein a high-voltage wiring terminal 2, a medium-voltage wiring terminal 3 and a low-voltage wiring terminal 4 are respectively arranged at the top of the insulating base plate 1, a high-voltage shielding wire wiring terminal 201 is arranged on one side of the high-voltage wiring terminal 2, a medium-voltage shielding wire wiring terminal 301 is arranged on one side of the medium-voltage wiring terminal 3, a low-voltage shielding wire wiring terminal 401 is arranged on one side of the low-voltage wiring terminal 4, heat-conducting silica gel 7 is arranged at the top of the insulating base plate 1, an insulating shell 101 is fixedly connected to the top of the insulating base plate 1, and an emergency stop protection mechanism is arranged on one side of the insulating shell 101;
the emergency stop protection mechanism comprises a protection switch seat 5, a normally open switch 501, a normally closed switch 502, a connecting wire 503, a direct current power supply 504 and an electromagnetic switch 505, wherein the direct current power supply 504 is arranged on one side of the insulating shell 101, the electromagnetic switch 505 is arranged on the top of the direct current power supply 504, the connecting wire 503 is arranged on one side of the electromagnetic switch 505, the protection switch seat 5 is arranged at one end of the connecting wire 503, and the normally open switch 501 and the normally closed switch 502 are both arranged inside the protection switch seat 5; the high-voltage wiring terminal 2, the medium-voltage wiring terminal 3 and the low-voltage wiring terminal 4 are respectively used for accessing high-voltage, medium-voltage and low-voltage test wires, the high-voltage shielding wire wiring terminal 201, the medium-voltage shielding wire wiring terminal 301 and the low-voltage shielding wire wiring terminal 401 are arranged for accessing shielding wires, the heat conducting silica gel 7 is arranged for uniformly distributing heat generated by current in a test, the emergency stop protection mechanism is arranged for responding to an emergency situation so as to immediately stop the test in time, the principle of the emergency stop protection mechanism is that a stop protection circuit is arranged as a basis, a normally open switch 501 and a normally closed switch 502 are connected in series with an internal coil of an electromagnetic switch 505, the normally open switch 501 is connected in parallel with one group of contacts in the electromagnetic switch 505 through a connecting wire 503, one group of contacts in the electromagnetic switch 505 is connected in series with the wiring terminals, low voltage is provided through a direct-current power supply 504, and the normally open switch 501 is closed when pressed, the internal coil of the electromagnetic switch 505 is electrified, so that the internal contacts of the electromagnetic switch 505 are closed, the circuit is kept electrified and closed, the wiring terminals are communicated, the normally closed switch 502 is pressed down, the normally closed switch 502 is disconnected, the low-voltage circuit is disconnected, the internal coil of the electromagnetic switch 505 is powered off, the contacts are disconnected, emergency stop is realized, the effect of low-voltage control high-voltage communication is realized, the safety of personnel is protected, and a plurality of groups of protection circuits are arranged for controlling wind to control different pressure test circuits.
The high-voltage wiring terminal 2, the medium-voltage wiring terminal 3 and the low-voltage wiring terminal 4 are internally provided with terminal seats 6, the tops of the terminal seats 6 are fixedly connected with nut fixing seats 601, the nut fixing seats 601 are fixedly connected with fixing nuts 602 inside the nut fixing seats 601, fastening bolts 605 are movably installed inside the fixing nuts 602, the bottoms of the fastening bolts 605 are rotatably connected with upper pressing blocks 604, and the bottoms of the terminal seats 6 are fixedly connected with lower pressing blocks 603; the terminal block 6 is provided to press down the upper press block 604 by the engagement between the fastening bolt 605 and the fixing nut 602, and to engage with the lower press block 603, so that the test wire is fixed inside the terminal block 6.
The insulating base plate 1 and the insulating shell 101 are both made of polytetrafluoroethylene materials, and an epoxy resin adhesive layer is arranged inside the insulating shell 101; the insulating base plate 1 and the insulating shell 101 are made of polytetrafluoroethylene materials, the polytetrafluoroethylene has a good insulating effect, and the epoxy resin adhesive layer is arranged inside the insulating shell 101 to improve the heat-resistant strength of the insulating shell 101 and prevent the insulating shell 101 from being burnt at high temperature.
The terminal block 6 is respectively arranged inside the high-voltage shielded wire wiring terminal 201, the medium-voltage shielded wire wiring terminal 301 and the low-voltage shielded wire wiring terminal 401, and the high-voltage wiring terminal 2, the medium-voltage wiring terminal 3 and the low-voltage wiring terminal 4 are electrically connected with the internal contacts of the uniform electromagnetic switch 505; the terminal block 6 is provided on the shielded wire terminal for fixing the shielded wire, and the high voltage terminal 2, the medium voltage terminal 3, and the low voltage terminal 4 are connected in series with the internal contact of the electromagnetic switch 505.
The bottom of the upper pressing block 604 is provided with an anti-skid groove, and the anti-skid groove at the bottom of the upper pressing block 604 is semicircular; the semicircular anti-skid grooves at the bottom of the upper pressing block 604 are arranged in both the transverse direction and the longitudinal direction, and the anti-skid grooves are arranged to prevent the connection wires from falling off.
The direct-current power supply 504 is electrically connected with the electromagnetic switch 505, and the normally open switch 501 and the normally closed switch 502 are both electrically connected with the direct-current power supply 504; the dc power supply 504 is connected in series with the internal coil of the electromagnetic switch 505, and the normally open switch 501 is connected in series with the normally closed switch 502 and the dc power supply 504.
The working principle and the using process of the utility model are as follows: when the device is used, high-voltage, medium-voltage and low-voltage test wires are respectively connected into the high-voltage wiring terminal 2, the medium-voltage wiring terminal 3 and the low-voltage wiring terminal 4, high-voltage, medium-voltage and low-voltage shielding wires are respectively connected into the high-voltage shielding wire wiring terminal 201, the medium-voltage shielding wire wiring terminal 301 and the low-voltage shielding wire wiring terminal 401, the normally open switch 501 is used for connecting a test circuit after wiring is completed, the normally closed switch 502 can be pressed to immediately disconnect the circuit during testing to protect test equipment and personnel safety in case of emergency, and the conditions of local overheating and the like are prevented by heat generated during heat conduction silica gel 7 dispersion test, so that the shell is prevented from being burnt out.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. The utility model provides a transformer high-voltage electrical test portable wiring board which characterized in that: the high-voltage insulation structure comprises an insulation base plate (1), wherein a high-voltage wiring terminal (2), a medium-voltage wiring terminal (3) and a low-voltage wiring terminal (4) are respectively arranged at the top of the insulation base plate (1), a high-voltage shielding wire wiring terminal (201) is arranged on one side of the high-voltage wiring terminal (2), a medium-voltage shielding wire wiring terminal (301) is arranged on one side of the medium-voltage wiring terminal (3), a low-voltage shielding wire wiring terminal (401) is arranged on one side of the low-voltage wiring terminal (4), heat-conducting silica gel (7) is arranged at the top of the insulation base plate (1), an insulation shell (101) is fixedly connected to the top of the insulation base plate (1), and an emergency stop protection mechanism is arranged on one side of the insulation shell (101);
scram protection mechanism includes protection switch seat (5), normally open switch (501), normally closed switch (502), connecting wire (503), DC power supply (504), electromagnetic switch (505), DC power supply (504) set up in insulating casing (101) one side, electromagnetic switch (505) set up at DC power supply (504) top, connecting wire (503) set up in electromagnetic switch (505) one side, protection switch seat (5) set up in connecting wire (503) one end, normally open switch (501) and normally closed switch (502) all set up inside protection switch seat (5).
2. The portable wiring board for high-voltage electrical test of transformer as claimed in claim 1, wherein: high voltage binding post (2), middling pressure binding post (3) and low pressure binding post (4) are inside all to be provided with terminal seat (6), terminal seat (6) top fixedly connected with nut fixing base (601), the inside fixedly connected with fixation nut (602) of nut fixing base (601), fixation nut (602) inside movable mounting has fastening bolt (605), fastening bolt (605) bottom is rotated and is connected with briquetting (604), briquetting (603) under terminal seat (6) bottom fixedly connected with.
3. The portable wiring board for high-voltage electrical test of transformer as claimed in claim 1, wherein: insulating bottom plate (1) and insulating casing (101) all adopt polytetrafluoroethylene material to make, insulating casing (101) inside is provided with the epoxy glue film.
4. The portable wiring board for high-voltage electrical test of transformer as claimed in claim 2, wherein: the terminal block (6) is respectively arranged inside the high-voltage shielded wire wiring terminal (201), the medium-voltage shielded wire wiring terminal (301) and the low-voltage shielded wire wiring terminal (401), and the internal contacts of the high-voltage wiring terminal (2), the medium-voltage wiring terminal (3) and the low-voltage wiring terminal (4) which are uniform are electrically connected.
5. The portable wiring board for high-voltage electrical test of transformer as claimed in claim 2, wherein: the bottom of the upper pressing block (604) is provided with an anti-slip groove, and the anti-slip groove at the bottom of the upper pressing block (604) is semicircular.
6. The portable wiring board for high-voltage electrical test of transformer as claimed in claim 1, wherein: the direct current power supply (504) is electrically connected with the electromagnetic switch (505), and the normally open switch (501) and the normally closed switch (502) are both electrically connected with the direct current power supply (504).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122734328.4U CN216285413U (en) | 2021-11-09 | 2021-11-09 | Portable wiring board for high-voltage electrical test of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122734328.4U CN216285413U (en) | 2021-11-09 | 2021-11-09 | Portable wiring board for high-voltage electrical test of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216285413U true CN216285413U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122734328.4U Active CN216285413U (en) | 2021-11-09 | 2021-11-09 | Portable wiring board for high-voltage electrical test of transformer |
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| Country | Link |
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| CN (1) | CN216285413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115528552A (en) * | 2022-10-24 | 2022-12-27 | 国网山东省电力公司临沂供电公司 | Prevent private wiring safety switch board |
-
2021
- 2021-11-09 CN CN202122734328.4U patent/CN216285413U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115528552A (en) * | 2022-10-24 | 2022-12-27 | 国网山东省电力公司临沂供电公司 | Prevent private wiring safety switch board |
| CN115528552B (en) * | 2022-10-24 | 2024-03-08 | 国网山东省电力公司临沂供电公司 | Prevent secret wiring safety switch board |
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