CN205231295U - High voltage insulation protective wire for load switch - Google Patents
High voltage insulation protective wire for load switch Download PDFInfo
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- CN205231295U CN205231295U CN201521018724.5U CN201521018724U CN205231295U CN 205231295 U CN205231295 U CN 205231295U CN 201521018724 U CN201521018724 U CN 201521018724U CN 205231295 U CN205231295 U CN 205231295U
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- primary side
- insulation protective
- load switch
- voltage insulation
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Abstract
The utility model discloses a high voltage insulation protective wire for load switch, include: wire core (21), O shape binding post (22), electrically conductive double -screw bolt (23), insulating layer (24) and insulating guard shield (25), the one end and the O shape binding post (22) of wire core (21) are connected, and the other end of wire core (21) is connected with electrically conductive double -screw bolt (23), the junction at wire core (21) and wire core (21) both ends is wrapped up in insulating layer (24), and electrically conductive double -screw bolt (23) are located in insulating guard shield (25), be equipped with the connection terminal that once inclines (111) on voltage transformer (11), one time the side joint line terminal is located in the connection terminal that once inclines (111), install in the connection terminal that once inclines (111) electrically conductive double -screw bolt (23) and insulating guard shield (25), and electrically conductive double -screw bolt (23) are connected with a side joint line terminal electricity. The utility model discloses can prevent effectively that the built -in voltage transformer of load switch from taking place alternate short circuit matter.
Description
Technical field
The utility model relates to on-load switch technical field, particularly relates to a kind of on-load switch High-Voltage Insulation protective wire.
Background technology
FZW28 type on-load switch is a kind of outdoor high-voltage alternating current vacuum load switch, and it is the visual plant of distribution automation, is mainly used in automatic disjunction load in overhead transmission line, and protects distribution line.Run due in this on-load switch is long-term high-altitude is severe out of doors natural environment, Maintenance and Repair are very inconvenient, therefore this to the adaptive capacity to environment of this on-load switch and reliability requirement very high.
The housing of FZW28 type on-load switch is provided with three inlet wire posts and three outlet column; The inlet wire cable of carrying three-phase electricity extend into enclosure interior through inlet wire post, forms on-load switch end of incoming cables; And the outlet cable carrying three-phase electricity extend into enclosure interior through outlet column, form load switch wire-outlet end.The enclosure interior of FZW28 type on-load switch is provided with built-in voltage instrument transformer, and the primary side terminals of this voltage transformer are connected with the leading-out terminal of on-load switch.In the prior art, the primary side terminals of this voltage transformer be that the plain conductor adopting two ends to be provided with O shape binding post realizes being electrically connected between load switch wire-outlet end, but present inventor finds: this connected mode is also unreliable, in actual use, the primary side terminals of this voltage transformer and the junction of O shape binding post there will be condensation accumulated water in some extreme environments, this can make wire make moist, decreasing insulating, thus easily causes phase fault accident.At present, also all there is such problem in all types of on market outdoor high-voltage alternating current vacuum load switchs.
Summary of the invention
For above-mentioned weak point of the prior art, the utility model provides a kind of on-load switch High-Voltage Insulation protective wire, effectively can prevent on-load switch built-in voltage instrument transformer generation phase fault accident.
The purpose of this utility model is achieved through the following technical solutions:
A kind of on-load switch High-Voltage Insulation protective wire, is electrically connected with the primary side terminals of on-load switch 1 built-in voltage instrument transformer 11, comprises: wire stylet 21, O shape binding post 22, conductive stud 23, insulating barrier 24 and insulating shield 25; One end of wire stylet 21 is connected with O shape binding post 22, and the other end of wire stylet 21 is connected with conductive stud 23;
Junction, the wire stylet 21 of wire stylet 21, wire stylet 21 and O shape binding post 22 are all wrapped in insulating barrier 24 with the junction of conductive stud 23, and conductive stud 23 is arranged in insulating shield 25; Voltage transformer 11 is provided with primary side junction block 111, and primary side terminals are located in primary side junction block 111; Conductive stud 23 and insulating shield 25 are installed in primary side junction block 111, and conductive stud 23 is electrically connected with primary side terminals, and insulating shield 25 and primary side junction block 111 closely cooperate.
Preferably, described insulating barrier 24 and insulating shield 25 all adopt silicon rubber to make.
Preferably, described conductive stud 23 is red copper stud.
Preferably, described insulating barrier 24 is integral type structure with insulating shield 25.
Preferably, the primary side terminals on voltage transformer 11 have two; Wherein, primary side terminals are electrically connected with b phase electric loading switch wire outlet terminal by a described High-Voltage Insulation protective wire 2, and another primary side terminals are electrically connected with c phase electric loading switch wire outlet terminal by High-Voltage Insulation protective wire 2 described in another root.
The technical scheme provided as can be seen from above-mentioned the utility model; the on-load switch High-Voltage Insulation protective wire that the utility model embodiment provides adopts conductive stud 23 to be electrically connected with the primary side terminals of voltage transformer 11; thus both improve the reliability of electrical connection, create advantage for carrying out insulating protection again.Simultaneously, the junction at wire stylet 21 and wire stylet 21 two ends is all wrapped in insulating barrier 24 by this High-Voltage Insulation protective wire, conductive stud 23 is arranged in insulating shield 25, and insulating shield 25 and primary side junction block 111 are closely cooperated, thus both improve the insulating capacity of this High-Voltage Insulation protective wire self and connecting position of wires, can effectively prevent again issuable condensation accumulated water from entering into primary side junction block 111 inner, therefore the on-load switch High-Voltage Insulation protective wire that the utility model embodiment provides effectively can prevent on-load switch built-in voltage instrument transformer generation phase fault accident.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation one of the on-load switch High-Voltage Insulation protective wire that Fig. 1 provides for the utility model embodiment.
The structural representation two of the on-load switch High-Voltage Insulation protective wire that Fig. 2 provides for the utility model embodiment.
The structural representation three of the on-load switch High-Voltage Insulation protective wire that Fig. 3 provides for the utility model embodiment.
The structural representation four of the on-load switch High-Voltage Insulation protective wire that Fig. 4 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art, not paying the every other embodiment obtained under creative work prerequisite, belong to protection range of the present utility model.
Below on-load switch High-Voltage Insulation protective wire provided by the utility model is described in detail.
Embodiment one
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of on-load switch High-Voltage Insulation protective wire, be electrically connected with the primary side terminals of on-load switch 1 built-in voltage instrument transformer 11, its concrete structure can comprise: wire stylet 21, O shape binding post 22, conductive stud 23, insulating barrier 24 and insulating shield 25;
One end of wire stylet 21 is connected with O shape binding post 22, and the other end of wire stylet 21 is connected with conductive stud 23; Junction, the wire stylet 21 of wire stylet 21, wire stylet 21 and O shape binding post 22 are all wrapped in insulating barrier 24 with the junction of conductive stud 23, and conductive stud 23 is arranged in insulating shield 25; Voltage transformer 11 is provided with primary side junction block 111, and primary side terminals are located in primary side junction block 111; Conductive stud 23 and insulating shield 25 are installed in primary side junction block 111, and conductive stud 23 is electrically connected with primary side terminals, and insulating shield 25 and primary side junction block 111 closely cooperate.
Particularly, each parts of this High-Voltage Insulation protective wire can comprise following embodiment:
(1) junction of wire stylet 21, wire stylet 21 and O shape binding post 22, wire stylet 21 are all wrapped in insulating barrier 24 with the junction of conductive stud 23; and conductive stud 23 is arranged in insulating shield 25; this effectively improves the insulating capacity of this High-Voltage Insulation protective wire self, thus can ensure alternate reliable insulation.In actual applications, insulating barrier 24 and insulating shield 25 preferably all adopt silicon rubber to make, and the thickness of insulating barrier 24 is preferably 2mm, due to the material that silicon rubber is a kind of ageing-resistant, high pressure resistant, good insulating, the insulating barrier 24 therefore adopting silicon rubber to make and insulating shield 25 has lastingly, reliable insulation property.In addition, for the ease of production and processing, and have good insulating capacity between effective guarantee insulating barrier 24 and insulating shield 25, insulating barrier 24 and insulating shield 25 are preferably integral structure.
(2) conductive stud 23 and insulating shield 25 are installed in primary side junction block 111, and insulating shield 25 closely cooperates with primary side junction block 111 (especially insulating shield 25 coordinates with the edges close of primary side junction block 111), thus it is inner effectively to prevent issuable condensation accumulated water from entering into primary side junction block 111, conductive stud 23 and primary side terminals all can not make moist, and it further ensures alternate reliable insulation.
(3) be electrically connected by conductive stud 23 between this High-Voltage Insulation protective wire with the primary side terminals of on-load switch 1 built-in voltage instrument transformer 11, this not only can improve electrical connection reliability, facilitate installation, and be conducive to carrying out insulating protection.In actual applications, this conductive stud 23 preferably adopts red copper stud, and this can ensure that electrical connection is more reliable.
(4) the O shape binding post 22 be connected with wire stylet 21 one end is for being fixed on the major loop of on-load switch 1; such as: as shown in Figure 4, this High-Voltage Insulation protective wire 2 can be electrically connected with the load switch wire-outlet end 12 of on-load switch 1 by O shape binding post 22.
(5) wire stylet 21 preferably adopts wire diameter to be 30mm
2copper flexible conductor, this can the reliability of effective guarantee high-voltage power transmission.
Further, as shown in Figure 3, for FZW28 type on-load switch, the primary side terminals on voltage transformer 11 have two; Wherein, primary side terminals are used for being electrically connected with b phase electric loading switch wire outlet terminal by a described High-Voltage Insulation protective wire 2, and another primary side terminals are used for being electrically connected with c phase electric loading switch wire outlet terminal by High-Voltage Insulation protective wire 2 described in another root.
As fully visible, the utility model embodiment effectively can prevent on-load switch built-in voltage instrument transformer generation phase fault accident, thus effectively can improve the safety and stability of this on-load switch.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (5)
1. an on-load switch High-Voltage Insulation protective wire, be electrically connected with the primary side terminals of on-load switch (1) built-in voltage instrument transformer (11), it is characterized in that, comprising: wire stylet (21), O shape binding post (22), conductive stud (23), insulating barrier (24) and insulating shield (25);
One end of wire stylet (21) is connected with O shape binding post (22), and the other end of wire stylet (21) is connected with conductive stud (23);
Junction, the wire stylet (21) of wire stylet (21), wire stylet (21) and O shape binding post (22) are all wrapped in insulating barrier (24) with the junction of conductive stud (23), and conductive stud (23) is arranged in insulating shield (25);
Voltage transformer (11) is provided with primary side junction block (111), and primary side terminals are located in primary side junction block (111); Conductive stud (23) and insulating shield (25) are installed in primary side junction block (111), conductive stud (23) is electrically connected with primary side terminals, and insulating shield (25) and primary side junction block (111) closely cooperate.
2. High-Voltage Insulation protective wire according to claim 1, is characterized in that, described insulating barrier (24) and insulating shield (25) all adopt silicon rubber to make.
3. High-Voltage Insulation protective wire according to claim 1 and 2, is characterized in that, described conductive stud (23) is red copper stud.
4. High-Voltage Insulation protective wire according to claim 1 and 2, is characterized in that, described insulating barrier (24) and insulating shield (25) are integral type structure.
5. High-Voltage Insulation protective wire according to claim 1 and 2, is characterized in that, the primary side terminals on voltage transformer (11) have two; Wherein, primary side terminals are electrically connected with b phase electric loading switch wire outlet terminal by a described High-Voltage Insulation protective wire (2), and another primary side terminals are electrically connected with c phase electric loading switch wire outlet terminal by High-Voltage Insulation protective wire (2) described in another root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521018724.5U CN205231295U (en) | 2015-12-09 | 2015-12-09 | High voltage insulation protective wire for load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521018724.5U CN205231295U (en) | 2015-12-09 | 2015-12-09 | High voltage insulation protective wire for load switch |
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| Publication Number | Publication Date |
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| CN205231295U true CN205231295U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521018724.5U Active CN205231295U (en) | 2015-12-09 | 2015-12-09 | High voltage insulation protective wire for load switch |
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| CN (1) | CN205231295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107015044A (en) * | 2016-08-24 | 2017-08-04 | 何排枝 | Transformer in the middle of a kind of high-precision high voltage isolation |
-
2015
- 2015-12-09 CN CN201521018724.5U patent/CN205231295U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107015044A (en) * | 2016-08-24 | 2017-08-04 | 何排枝 | Transformer in the middle of a kind of high-precision high voltage isolation |
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