CN217156587U - Portable short-circuit box - Google Patents
Portable short-circuit box Download PDFInfo
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- CN217156587U CN217156587U CN202220680384.6U CN202220680384U CN217156587U CN 217156587 U CN217156587 U CN 217156587U CN 202220680384 U CN202220680384 U CN 202220680384U CN 217156587 U CN217156587 U CN 217156587U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a portable short terminal box, include: the high-voltage side wire box is sequentially provided with a plurality of high-voltage tape coils, each tape coil is wound with a high-voltage outgoing wire, the outer ends of all the high-voltage outgoing wires are arranged outside the high-voltage side wire box, and the inner ends of adjacent high-voltage outgoing wires are connected or disconnected through a first switch; the low-voltage side wire boxes are sequentially arranged to be provided with a plurality of low-voltage tape wire coils, each tape wire coil is wound with a low-voltage outgoing wire, the outer ends of all the low-voltage outgoing wires are arranged outside the low-voltage side wire boxes, the inner ends of the adjacent low-voltage outgoing wires are connected or disconnected through a second switch, and the high-voltage side wire boxes and the low-voltage side wire boxes are arranged on the fixing assembly. The portable short junction box provided by the application has the advantages of weight and safety in the aspects of overall material consumption and space, convenience and rapidness in use and high efficiency. The synchronous testing device meets the requirement of one-time wiring synchronous test of a plurality of tested products, and can be widely popularized and used in laboratories and field high-voltage tests.
Description
Technical Field
The utility model relates to a distribution equipment insulation withstand voltage test operation wiring research technical field, more specifically say, relate to a portable short terminal box.
Background
The operation wiring before the distribution equipment insulation withstand voltage test, such as insulation resistance measurement, power frequency withstand voltage test, lightning impulse test and the like, needs to be used for short circuit among the terminals of a large number of short-circuit wires to tested articles such as transformers, switch cabinets and circuit breakers.
The common short-circuit wire mostly adopts a soft copper round wire or a flat wire, so that a plurality of inconveniences exist, such as: the compatibility is not sufficient: distribution equipment is more in kind, and each leading-out terminal structure is different and is not unified, appears dragging easily when ordinary short-circuit connection short circuit tested article, and twine inconveniently, connect the jail and easily drop. The life is not long enough: the wiring is stretched repeatedly and is retrieved at every turn, and is great to ordinary shorting stub loss, and the tester easily tramples when the wiring is dilatory, causes the shorting stub broken string. The wiring efficiency is low: for a common short-circuit wire with a plug, when each terminal is short-circuited, a plurality of short-circuit wires are often required to be connected in a plugging mode, the length is not easy to control, and the operation is complex. The safety performance is not high: when the tested object is large in size and each terminal is far away, the insulation test safety distance is considered, an insulation support rod is often required to be arranged outside, and the used tools are more, so that potential safety hazards are difficult to avoid.
In summary, how to solve the problems of poor compatibility, short service life, low short-circuit efficiency and poor safety of the common short-circuit line is a problem to be solved urgently by those skilled in the art at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a portable short junction box, this portable short junction box application scope is wide, long service life, short circuit are efficient, the security is high.
In order to achieve the above object, the present invention provides the following technical solutions:
a portable short junction box comprising: the high-voltage side wire box is sequentially provided with a plurality of high-voltage tape coils, each tape coil is wound with a high-voltage outgoing wire, the outer ends of all the high-voltage outgoing wires are arranged outside the high-voltage side wire box, and the inner ends of the adjacent high-voltage outgoing wires are connected or disconnected through a first switch; the low-voltage side wire box is sequentially provided with a plurality of low-voltage tape wire coils, each tape wire coil is wound with a low-voltage outgoing wire, the outer ends of all the low-voltage outgoing wires are arranged outside the low-voltage side wire box, the inner ends of the adjacent low-voltage outgoing wires are connected or disconnected through a second switch, and the high-voltage side wire box and the low-voltage side wire box are arranged on the fixing assembly.
Preferably, the high-voltage side junction box comprises a first bottom plate, a first junction box cover and a first outgoing line plate, the first junction box cover is arranged on the first bottom plate, the first outgoing line plate is arranged on the upper edge of the outer side of the first bottom plate, and the first outgoing line plate is provided with first line holes which are consistent with the high-voltage outgoing lines in number and correspond to the high-voltage outgoing lines one by one; the low-voltage side line box comprises a second bottom plate, a second line box cover and a second outgoing line plate, the second line box cover is arranged on the second bottom plate, the second outgoing line plate is arranged on the upper edge of the outer side of the second bottom plate, and the second outgoing line plate is provided with second line holes which are consistent in number and in one-to-one correspondence with the low-voltage outgoing lines.
Preferably, the first switch comprises a first conductor, a second conductor and a switch shifting piece movably arranged on the second conductor, one end of the switch shifting piece is connected with the second conductor, the other end of the switch shifting piece is connected with the first conductor and can be disconnected, the first conductor is connected with the inner end of one outgoing line, and the second conductor is connected with the inner end of the adjacent outgoing line.
Preferably, the first conductor and the second conductor are both copper strip plates.
Preferably, the first cable box cover and the second cable box cover are transparent covers.
Preferably, the first bottom plate and the second bottom plate are both white epoxy plates.
Preferably, the fixing assembly comprises a fixing rod, a base, a first clamp and a second clamp, the high-voltage side line box is connected with the fixing rod through the first clamp, the low-voltage side line box is connected with the fixing rod through the second clamp, and the fixing rod is arranged on the base.
Preferably, the fixing rod is threadedly connected with the base.
The portable short junction box provided by the application has the advantages of weight and safety in terms of overall material and space. Different structures and different test wiring modes aiming at different tested articles adopt flexible connection combination of high-low voltage wire boxes, and the wire boxes are matched with fixed assemblies to be used independently, so that the wire box is convenient, quick and efficient. Simultaneously, also can mutually support between a plurality of portable short terminal boxes and use, satisfy many tested article wiring synchronization test once, the high-efficient swiftly satisfies the operation wiring before the distribution equipment insulation withstand voltage test, can effectively use the insulation resistance measurement of transformer, apply withstand voltage test outward, lightning impulse test to and the power frequency withstand voltage test of high tension switchgear, circuit breaker, lightning impulse test etc.. Portable short-circuit line box can use widely in laboratory and on-the-spot high-voltage test on a large scale as improvement formula wiring frock.
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 top view of a portable short junction box provided by the present invention;
FIG. 2 is a side view of the portable short junction box provided by the present invention;
fig. 3 is a front view of the portable short junction box provided by the present invention.
In FIGS. 1-3:
1-a first outgoing line plate, 2-a first line hole, 3-a high-voltage side line box, 4-a high-voltage tape reel, 5-a first switch, 6-a fixed rod, 7-a second switch, 8-a low-voltage tape reel, 9-a second outgoing line plate, 10-a low-voltage side line box, 11-a second line hole, 12-a first line box cover, 13-a first bottom plate, 14-a base, 15-a first clamp and 16-a second line box cover.
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.
The core of the utility model is to provide a portable short junction box, this portable short junction box application scope is wide, long service life, short circuit are efficient, the security is high.
Referring to fig. 1 to 3, a portable short junction box includes: the high-voltage side wire box 3, the low-voltage side wire box 10 and the fixing assembly are sequentially arranged, the high-voltage side wire box 3 is sequentially provided with a plurality of high-voltage tape coils 4, each tape coil is wound with a high-voltage outgoing wire, the outer ends of all the high-voltage outgoing wires are arranged outside the high-voltage side wire box 3, and the inner ends of the adjacent high-voltage outgoing wires are connected or disconnected through a first switch 5; low pressure side line box 10 arranges in proper order and sets up a plurality of low pressure tape reel 8, and every tape reel all twines the low pressure lead-out wire, and the outer end of all low pressure lead-out wires all sets up outside low pressure side line box 10, and the inner of adjacent low pressure lead-out wire passes through second switch 7 and connects or breaks off, and high pressure side line box 3 and low pressure side line box 10 all set up in fixed subassembly.
It should be noted that the length, width and height parameters of the high-voltage side wire box 3 are 270 × 180 × 50(mm), the length of the high-voltage lead wire can be freely adjusted by winding the high-voltage lead wire on the high-voltage tape spool 4, and four high-voltage tape spools 4 are arranged in the high-voltage side wire box 3. Correspondingly connecting four-phase terminals a, b, c and o on the high-voltage side of the tested object
The length, width and height parameters of the low-voltage side wire box 10 are 330 x 180 x 50(mm), the length of the low-voltage lead wire can be freely adjusted through the structure that the low-voltage lead wire is wound on the low-voltage tape reel 8, five low-voltage tape reels 8 are arranged in the low-voltage side wire box 10, and the low-voltage side terminals a, b, c, o and pe of the tested object are correspondingly connected. The fixed component adopts an insulating part to avoid the connection of the high-voltage side and the low-voltage side.
Taking an example of an external application voltage withstand test of a distribution transformer tested product, when the high-voltage-low-voltage and ground voltage withstand test is carried out, on one hand, three high-voltage outgoing lines at a high-voltage side are pulled out by corresponding high-voltage tape reels 4 to be connected with a three-phase terminal of a transformer A, B, C in a proper length, on the other hand, the other high-voltage outgoing lines are pulled out by corresponding high-voltage tape reels 4 to be connected with a test transformer in a proper length, meanwhile, first switches 5 in the high-voltage side outgoing line reels are connected, four high-voltage tape reels 4 are connected in series, and the test transformer outputs a test voltage value; on the other hand, four low-voltage outgoing lines at the low-voltage side are pulled out of four-phase terminals of transformers a, b, c and o with proper lengths through corresponding low-voltage tape reels 8, the other outgoing line is pulled out of a grounding point nearby with proper lengths through corresponding low-voltage tape reels 8, meanwhile, a second switch 7 in a low-voltage side wire box 10 is connected, and five low-voltage tape reels 8 are communicated.
The portable short junction box provided by the application has the advantages of weight and safety in terms of overall material and space. Different structures and different test wiring modes aiming at different tested articles adopt flexible connection combination of high-low voltage wire boxes, and the wire boxes are matched with fixed assemblies to be used independently, so that the wire box is convenient, quick and efficient. Simultaneously, also can mutually support between a plurality of portable short terminal boxes and use, satisfy many tested article wiring synchronization test once, the high-efficient swiftly satisfies the operation wiring before the distribution equipment insulation withstand voltage test, can effectively use the insulation resistance measurement of transformer, apply withstand voltage test outward, lightning impulse test to and the power frequency withstand voltage test of high tension switchgear, circuit breaker, lightning impulse test etc.. Portable short-circuit line box can use widely in laboratory and on-the-spot high-voltage test on a large scale as improvement formula wiring frock.
On the basis of the above embodiment, as a further preferable mode, the high voltage side junction box 3 includes a first base plate 13, a first junction box cover 12, and a first outgoing line plate 1, the first junction box cover 12 is provided on the first base plate 13, the first outgoing line plate 1 is provided on an outer upper edge of the first base plate 13, the first outgoing line plate 1 is provided with first line holes 2 corresponding to the high voltage outgoing lines in number one by one, each high voltage outgoing line extends out of the high voltage side junction box 3 through the corresponding first line hole 2, the low voltage side junction box 10 includes a second base plate, the second wire box cover 16 and the second outgoing line plate 9, the second wire box cover 16 is arranged on the second bottom plate, the second outgoing line plate 9 is arranged on the outer side upper edge of the second bottom plate, the second outgoing line plate 9 is provided with second wire holes 11 which are consistent with the low-voltage outgoing lines in quantity and in one-to-one correspondence, and each low-voltage outgoing line extends out of the low-voltage side wire box 10 through the corresponding second wire hole 11.
On the basis of the above embodiment, as a further preferable option, the first switch 5 includes a first conductor, a second conductor, and a switch moving piece movably disposed on the second conductor, one end of the switch moving piece is connected to the second conductor, the other end of the switch moving piece is connectable to and disconnectable from the first conductor, the first conductor is connected to the inner end of one outgoing line, the second conductor is connected to the inner end of an adjacent outgoing line, each high-voltage tape spool 4 is connected to and only connected to one conductor, when one high-voltage tape spool 4 of two adjacent high-voltage tape spools 4 is connected to the first spool conductor, the other high-voltage tape spool 4 is connected to the second conductor, and only one switch moving piece is disposed between the first conductor and the second conductor for connection or disconnection.
The structural arrangement of the second switch 7 refers to the structural arrangement of the first switch 5 described above.
On the basis of the above embodiment, as a further preferred, the first conductor and the second conductor are both copper strip-shaped plates, the switch shifting piece is a rotatable copper shifting piece, the copper shifting piece can conduct the first conductor and the second conductor to realize connection and disconnection of wires of each wire coil, and the copper shifting piece is made of T2 copper and has good conductivity.
In addition to the above embodiments, it is further preferable that the first cover 12 and the second cover 16 are both transparent covers, and the transparency of the transparent covers is high, so that the conditions of the internal circuits and components can be clearly observed.
On the basis of the above embodiment, as a further preference, the first bottom plate 13 and the second bottom plate are both white epoxy plates, which have good insulating property and appropriate weight and have good fixing function as the bottom plates.
In addition to the above embodiments, it is further preferable that the fixing assembly includes a fixing rod 6, a base 14, a first jig 15, and a second jig, the high voltage side wire casing 3 is connected to the fixing rod 6 through the first jig 15, the low voltage side wire casing 10 is connected to the fixing rod 6 through the second jig, and the fixing rod 6 is provided on the base 14. The length, width and height parameters of the base 14 are 200 × 160 × 40(mm), the base is made of yellow epoxy plate material, the insulating property is good, the weight is proper, and the base 14 has a good stabilizing effect. 6 pole height 400mm of dead lever, diameter 30mm, for white epoxy board material, insulating properties is good for connect insulating support base 14 and high-low pressure side lead-out wire box, high pressure side line box 3 and low pressure side line box 10 are located the both sides of dead lever 6 respectively, can adjust the height of high pressure side line box 3 in a flexible way through first anchor clamps 15, can adjust the height of low pressure side line box 10 in a flexible way through adjusting the second anchor clamps. High pressure side line box 3, low pressure side line box 10 all take swing joint with the bracing piece, and three parts all can be dismantled.
The high-voltage lead wire and the low-voltage lead wire are 2mm 2 Take insulated coat's annealed copper line, the alligator clip is adopted to the outer end, has avoided traditional winding ground wiring, rotates through the line dish during the wiring and pulls out suitable length, through the rotatory recovery of line dish during the receipts line, the more convenient high efficiency of wiring dismouting.
In addition to the above embodiments, it is further preferable that the fixing rod 6 is screwed with the base 14. The bottom of dead lever 6 sets up the external screw thread, and base 14 sets up the screw hole that matches with the external screw thread, the dismouting of being convenient for.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above is to the portable short-circuit box provided by the utility model is introduced in detail. 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 portable short junction box, comprising: the high-voltage side wire box comprises a high-voltage side wire box (3), a low-voltage side wire box (10) and a fixing assembly, wherein the high-voltage side wire box (3) is sequentially provided with a plurality of high-voltage tape coils (4), each tape coil is wound with a high-voltage outgoing wire, the outer ends of all the high-voltage outgoing wires are arranged outside the high-voltage side wire box (3), and the inner ends of the adjacent high-voltage outgoing wires are connected or disconnected through a first switch (5); low pressure side line box (10) are arranged in proper order and are set up a plurality of low pressure tape reel (8), every the tape reel all twines the low pressure lead-out wire, all the outer end of low pressure lead-out wire all set up in outside low pressure side line box (10), adjacent the inner of low pressure lead-out wire is connected or is broken off through second switch (7), high pressure side line box (3) with low pressure side line box (10) all set up in fixed subassembly.
2. The portable short junction box according to claim 1, wherein the high-voltage side junction box (3) comprises a first bottom plate (13), a first junction box cover (12) and a first outgoing line plate (1), the first junction box cover (12) is arranged on the first bottom plate (13), the first outgoing line plate (1) is arranged on the outer side of the first bottom plate (13), and the first outgoing line plate (1) is provided with first line holes (2) which are consistent in number and correspond to the high-voltage outgoing lines one to one; low pressure side line box (10) include second bottom plate, second line lid (16) and second outlet line board (9), second line lid (16) set up in on the second bottom plate, second outlet line board (9) set up in edge on the outside of second bottom plate, second outlet line board (9) set up with the unanimous and one-to-one second line hole (11) of low pressure outlet line quantity.
3. The short portable terminal box according to claim 2, wherein the first switch (5) comprises a first conductor, a second conductor, and a switch paddle movably disposed on the second conductor, one end of the switch paddle is connected to the second conductor, the other end of the switch paddle is disconnectable from the first conductor, the first conductor is connected to an inner end of one of the outgoing lines, and the second conductor is connected to an inner end of an adjacent outgoing line.
4. The portable short junction box of claim 3, wherein the first conductor and the second conductor are each a strip of copper.
5. The portable short junction box according to claim 2, wherein the first and second wire cover (12, 16) are transparent covers.
6. The portable short junction box according to claim 2, wherein the first bottom plate (13) and the second bottom plate are both white epoxy plates.
7. The portable short junction box according to claim 1, wherein the fixing assembly comprises a fixing rod (6), a base (14), a first clamp (15), and a second clamp, the high voltage side junction box (3) is connected with the fixing rod (6) through the first clamp (15), the low voltage side junction box (10) is connected with the fixing rod (6) through the second clamp, and the fixing rod (6) is disposed on the base (14).
8. Portable short junction box according to claim 7, characterized in that the fixing bar (6) is screwed to the base (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220680384.6U CN217156587U (en) | 2022-03-25 | 2022-03-25 | Portable short-circuit box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220680384.6U CN217156587U (en) | 2022-03-25 | 2022-03-25 | Portable short-circuit box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217156587U true CN217156587U (en) | 2022-08-09 |
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ID=82697611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220680384.6U Active CN217156587U (en) | 2022-03-25 | 2022-03-25 | Portable short-circuit box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217156587U (en) |
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2022
- 2022-03-25 CN CN202220680384.6U patent/CN217156587U/en active Active
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