CN117728307A - Isolation protection device for operation of low-voltage end of transformer - Google Patents
Isolation protection device for operation of low-voltage end of transformer Download PDFInfo
- Publication number
- CN117728307A CN117728307A CN202311801458.2A CN202311801458A CN117728307A CN 117728307 A CN117728307 A CN 117728307A CN 202311801458 A CN202311801458 A CN 202311801458A CN 117728307 A CN117728307 A CN 117728307A
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- Prior art keywords
- transformer
- isolation
- low
- low voltage
- insulating
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- 238000002955 isolation Methods 0.000 title claims abstract description 107
- 238000009413 insulation Methods 0.000 claims abstract description 41
- 230000004888 barrier function Effects 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses an isolation protection device for operation of a low-voltage end of a transformer, which comprises: the first insulating isolation protection component, the second insulating isolation protection component and the third insulating isolation protection component; the first insulating isolation protection component comprises: a plurality of first couple and high low pressure terminal insulating barrier, first couple includes: the first couple body, first hangers and first bayonet socket are equipped with a plurality of isolation column messenger and form a plurality of draw-in grooves in first bayonet socket in the first bayonet socket, wherein: the first hook is hooked on the wiring row through the first hanging lug, the bottom of the handheld high-low voltage wiring column insulating isolation plate is clamped in any clamping groove of the first bayonet, and the high-low voltage wiring column insulating isolation plate is vertically fixed. By implementing the isolation protection device for the operation of the low-voltage end of the transformer, insulation and isolation protection can be carried out between high-voltage wiring columns during the live operation of the low-voltage end of the transformer, and potential safety hazards are eliminated; reasonable structure and easy operation.
Description
Technical Field
The invention relates to the technical field of auxiliary tools for transformer operation, in particular to an isolation protection device for transformer low-voltage end operation.
Background
In the prior art, the voltage end of the transformer is electrified and replaced to the JP cabinet incoming line at the low-voltage side of the transformer, and the high-voltage line is in a state of switching without power failure, so that the whole transformer is an electrified body, and high-voltage and low-voltage isolation is required to be effectively carried out on high-voltage and low-voltage crimping line posts during live working; meanwhile, the low-voltage side A, B, C, N four-wire connection needs to be isolated between the phases, so that the phase-to-phase loop is prevented. In addition, during operation, operators should avoid approaching the bottom wiring terminal of the lightning arresters, and prevent accidental contact with the four lightning arresters on the low-voltage side of the transformer.
Accordingly, there is a need to design a corresponding isolation protection device for transformer low voltage end operation.
Disclosure of Invention
The invention aims to solve the technical problem of providing an isolation protection device for the operation of a low-voltage end of a transformer, which can perform insulation and isolation protection on high-voltage wiring columns during the live operation of the low-voltage end of the transformer and eliminate potential safety hazards; reasonable structure and easy operation.
In order to solve the above technical problems, the present invention provides an isolation protection device for low-voltage end operation of a transformer, comprising: the transformer low-voltage side lightning arrester comprises a first insulating isolation protection component, a second insulating isolation protection component and a third insulating isolation protection component, wherein the first insulating isolation protection component is used for isolating a high-voltage wiring column and a low-voltage wiring column of a transformer, the second insulating isolation protection component is used for isolating a grounding wire side of a low-voltage side lightning arrester of the transformer, and the third insulating isolation protection component is used for isolating low-voltage phases; the first insulating isolation protection component comprises: a plurality of first couples and by the high-low pressure terminal insulating barrier of a plurality of first couples fixed, first couple includes: the first couple body, establish and be used for linking up first couple on walking the line row with first hangers of first couple body one end and establish the first bayonet socket at the relative other end of first couple body, be equipped with a plurality of bollards in the first bayonet socket and make and form a plurality of draw-in grooves in first bayonet socket, wherein: the first hook is hooked on the wiring row through the first hanging lug, the bottom of the handheld high-low voltage wiring column insulating isolation plate is clamped in any clamping groove of the first bayonet, and the high-low voltage wiring column insulating isolation plate is vertically fixed.
Wherein, the inboard of first hangers is equipped with a plurality of equidistance evenly arranged's tooth's socket, and the cross-section of walking line row is the I-shaped.
Wherein the structures of the plurality of first hooks are identical.
Wherein, high low pressure terminal insulating barrier is dull and stereotyped form, is equipped with first isolation handle on it.
The high-low voltage wiring column insulating isolation plate and the first isolation handle are made of epoxy resin materials.
Wherein the second insulating isolation protection component comprises: a plurality of second couple and by the insulating division board of arrester that a plurality of second couple fixed, the second couple includes: the transformer is characterized by comprising a second hook body, a second hanging lug arranged at one end of the second hook body and used for hooking the second hook to the grounding flat iron of the transformer platform, and a second bayonet arranged at the other opposite end of the second hook body, wherein a plurality of clamping grooves are formed in the second bayonet, and the transformer platform is characterized in that: the handheld lightning arrester insulating isolation board is clamped at one end in any clamping groove of the second bayonet, and the lightning arrester insulating isolation board is horizontally fixed.
Wherein the structures of the second hooks are identical.
Wherein, the arrester insulation division board is dull and stereotyped form, is equipped with the second isolation handle on it, and arrester insulation division board and second isolation handle are made by epoxy material.
The third insulating isolation protection component is a clamp structure with an opening end at one side, and the section of the third insulating isolation protection component is U-shaped.
The opening end of the third insulating isolation protection component is narrowed and has certain elasticity.
The isolation protection device for the operation of the low-voltage end of the transformer has the following beneficial effects: a first insulating isolation protection assembly for an isolation protection device for transformer low voltage end operation includes: a plurality of first couples and by the high-low pressure terminal insulating barrier of a plurality of first couples fixed, first couple includes: the first couple body, establish and be used for linking up first couple on walking the line row with first hangers of first couple body one end and establish the first bayonet socket at the relative other end of first couple body, be equipped with a plurality of bollards in the first bayonet socket and make and form a plurality of draw-in grooves in first bayonet socket, wherein: the first hook is hooked on the wiring row through the first hanging lug, the bottom of the handheld high-low voltage wiring column insulating isolation board is clamped in any clamping groove of the first bayonet, the high-low voltage wiring column insulating isolation board is vertically fixed, isolation protection can be carried out between the high-voltage wiring column and the high-low voltage wiring column of the transformer, and potential safety hazards are eliminated; reasonable structure and easy operation.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a first insulation protection component of an insulation protection device for a transformer low-voltage end operation according to an embodiment of the present invention.
Fig. 2 is a schematic side view of a first insulation protection component of an insulation protection device for a transformer low-voltage end operation according to an embodiment of the present invention.
Fig. 3 is a schematic top view of a first insulation protection component of an insulation protection device for a transformer low-voltage end operation according to an embodiment of the present invention.
Fig. 4 is a schematic perspective view of a second insulation protection component of the insulation protection device for the operation of the low-voltage end of the transformer according to the embodiment of the invention.
Fig. 5 is a schematic side view of a second insulation protection component of the insulation protection device for the operation of the low-voltage end of the transformer according to the embodiment of the invention.
Fig. 6 is a schematic top view of a second insulation protection component of the insulation protection device for the operation of the low-voltage end of the transformer according to the embodiment of the invention.
Fig. 7 is a schematic perspective view of a third insulation protection assembly of an insulation protection device for a transformer low-voltage end operation according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The isolation protection device for operation of the low-voltage end of the transformer in the embodiment comprises: the transformer high-voltage grounding wire comprises a first insulating and isolating protection component used for isolating a transformer high-voltage grounding wire column from a transformer low-voltage grounding wire column, a second insulating and isolating protection component used for isolating a transformer low-voltage side lightning arrester grounding wire side and a third insulating and isolating protection component 3 used for isolating low-voltage occurrence phases.
The first insulating isolation protection component comprises: a plurality of first hooks T1 and a high-low voltage terminal insulating spacer 12 fixed by the plurality of first hooks T1, the first hooks T1 including: the wire winding device comprises a first hook body 111, a first hanging lug 112 arranged at one end of the first hook body 111 and used for hooking the first hook T1 on the wire winding row S, and a first bayonet 113 arranged at the other opposite end of the first hook body 111, wherein a plurality of isolation columns 1131 are arranged in the first bayonet 113, so that a plurality of clamping grooves 1132 are formed in the first bayonet 113.
Wherein: the first hanging hook T1 is hooked on the wiring row S through the first hanging lug 112, the bottom of the handheld high-low voltage wiring column insulating isolation board 12 is clamped in any clamping groove 1132 of the first clamping opening 113, and the high-low voltage wiring column insulating isolation board 12 is vertically fixed. Thus, insulation and isolation protection are carried out between the high-voltage wiring column and the low-voltage wiring column of the transformer.
Referring to fig. 1-3 in combination, the structure of the first insulation protection component of the insulation protection device for the operation of the low-voltage end of the transformer is shown.
In this embodiment, the structures of the plurality of first hooks T1 are the same, and are all hooked on the trace line S through the first hooks 112. The cross section of the wiring row S is I-shaped, a plurality of tooth grooves 1120 which are uniformly arranged at equal intervals are arranged on the inner side of the first hanging lug 112, and the connecting tightness between the first hanging hook T1 and the wiring row S is enhanced by arranging the tooth grooves 1120.
The plurality of isolation posts 1131 in the first bayonet 113 are identical to the extending direction of the first hook body 111, and the plurality of isolation posts 1131 are arranged in a manner of increasing or decreasing in height from one side to the other side, so that the high and low voltage terminal insulating isolation plate 12 is inserted quickly.
Further, the insulating spacer 12 for high and low voltage terminals is flat plate-shaped, and two first insulating handles 121 are provided thereon. The high and low voltage terminal insulating spacer 12 and the first spacer knob 121 are each made of an epoxy resin material.
In practice, the size of the high-low voltage terminal insulating isolation board 12 is set according to the power size of the transformer, for example: the length is 20CM more than that of the high-low voltage side binding posts, and the height is 40CM more than that of the high-voltage side insulating porcelain insulator. Through setting up first insulating isolation protection subassembly, form safe shielding scope, can satisfy the safe distance of high-pressure during operation in this safe shielding scope. The bottom of the handheld high-low voltage wiring column insulating isolation board 12 is clamped in any clamping groove 1132 of the first clamping opening 113, and the high-low voltage wiring column insulating isolation board 12 is vertically fixed, so that insulating isolation protection is carried out between the high-voltage wiring column and the low-voltage wiring column of the transformer.
Referring to fig. 4-6 in combination, the structure of the second insulation protection assembly of the insulation protection device for the operation of the low-voltage end of the transformer is shown.
Further, the second insulating isolation protection component comprises: a plurality of second hooks T2 and a lightning arrester insulating partition plate 22 fixed by the plurality of second hooks T2, the second hooks T2 including: the second couple body 211, establish the second hangers 212 that are used for linking second couple T2 to collude on transformer platform ground band iron P at second couple body 211 one end and establish the second bayonet socket 213 at the second couple body 211 opposite other end, be equipped with a plurality of draw-in grooves 2130 in the second bayonet socket, wherein: the hand-held lightning arrester insulating board 22 is held with one end thereof in any one of the clamping grooves 2130 of the second bayonet 213, and the lightning arrester insulating board 22 is horizontally fixed.
In this embodiment, the structures of the plurality of second hooks T2 are the same, and are all hooked on the grounding flat iron P of the transformer stand by the second hooks 212, and the grounding flat iron P of the transformer stand is flat bar-shaped.
Further, the lightning arrester insulating isolation board 22 is in a flat plate shape, a second isolation handle 222 is arranged on the lightning arrester insulating isolation board 22, and the second isolation handle 222 are made of epoxy resin materials.
In practice, the second isolating handle 222 is held, the clamping grooves 2130 of the second bayonet 213 are aligned, and the lightning arrester insulating isolation plate 22 is pushed into the plurality of second hooks T2, so that the insulating isolation shielding of the lightning arrester is completed.
Referring to fig. 7, the structure of the third insulation protection assembly of the insulation protection device for the operation of the low-voltage end of the transformer is shown.
In specific implementation, the third insulating isolation protection component 3 is a clamp structure with an opening end 31 at one side, and the cross section of the third insulating isolation protection component is in a U shape, and the third insulating isolation protection component is used as an insulating protection cover for isolating and shielding interphase operation.
The third insulating and isolating protective component 3 is manufactured in a heating and bending integrated forming mode, the opening end 31 is narrowed and has certain elasticity, and a clamping force is generated by utilizing the rebound resilience of materials, so that the third insulating and isolating protective component 3 can wrap a low-voltage terminal and has certain clamping force. Therefore, even if collision exists during operation, the device is not easy to fall off, and the isolation effect is ensured.
When the isolation protection device for operation of the low-voltage end of the transformer is implemented, the first insulation isolation protection component is used for isolating and protecting the high-voltage wiring column and the low-voltage wiring column of the transformer, the second insulation isolation protection component is used for isolating and protecting the grounding wire side of the lightning arrester on the low-voltage side of the transformer, the third insulation isolation protection component 3 is used for isolating the low-voltage outlet from the phase to the phase, and the temporary fixation is completed through the isolation components. After the operation is finished, the high-low voltage wiring column insulating isolation plate 12 is removed, the lightning arrester insulating isolation plate 22 is removed, and the corresponding hooks are removed.
The isolation protection device for the operation of the low-voltage end of the transformer has the following beneficial effects: a first insulating isolation protection assembly for an isolation protection device for transformer low voltage end operation includes: a plurality of first couples and by the high-low pressure terminal insulating barrier of a plurality of first couples fixed, first couple includes: the first couple body, establish and be used for linking up first couple on walking the line row with first hangers of first couple body one end and establish the first bayonet socket at the relative other end of first couple body, be equipped with a plurality of bollards in the first bayonet socket and make and form a plurality of draw-in grooves in first bayonet socket, wherein: the first hook is hooked on the wiring row through the first hanging lug, the bottom of the handheld high-low voltage wiring column insulating isolation board is clamped in any clamping groove of the first bayonet, the high-low voltage wiring column insulating isolation board is vertically fixed, isolation protection can be carried out between the high-voltage wiring column and the high-low voltage wiring column of the transformer, and potential safety hazards are eliminated; reasonable structure and easy operation.
Claims (10)
1. An isolation protection device for transformer low voltage end operation, comprising: the transformer low-voltage side lightning arrester comprises a first insulating isolation protection component, a second insulating isolation protection component and a third insulating isolation protection component, wherein the first insulating isolation protection component is used for isolating a high-voltage wiring column and a low-voltage wiring column of a transformer, the second insulating isolation protection component is used for isolating a grounding wire side of a low-voltage side lightning arrester of the transformer, and the third insulating isolation protection component is used for isolating low-voltage phases;
the first insulating isolation protection component comprises: a plurality of first hooks and high-low voltage terminal insulating barrier fixed by the plurality of first hooks, the first hooks comprising: the utility model provides a couple body, establish first couple body one end be used for with first couple colludes the first hangers on walking the line row and establishes first bayonet socket of the relative other end of first couple body, be equipped with a plurality of isolation columns in the first bayonet socket and make form a plurality of draw-in grooves in the first bayonet socket, wherein:
the first hooks are hooked on the wiring row through the first hanging lugs, the bottoms of the high-low voltage wiring column insulating isolation plates are clamped in any clamping groove of the first bayonet by the aid of the high-low voltage wiring column insulating isolation plates in a handheld mode, and the high-low voltage wiring column insulating isolation plates are vertically fixed.
2. The isolation and protection device for operation of a low voltage end of a transformer according to claim 1, wherein a plurality of tooth grooves which are uniformly arranged at equal intervals are arranged on the inner side of the first hanging lug, and the section of the wiring row is I-shaped.
3. The isolation protection device for transformer low voltage end operation of claim 1, wherein the plurality of first hooks are identical in structure.
4. The insulation protection device for low voltage terminal operation of transformer according to claim 1, wherein the insulation isolation board of the high and low voltage terminal is in a shape of a flat plate, and a first insulation handle is provided thereon.
5. The isolation protection device for transformer low voltage terminal operation of claim 4, wherein said high and low voltage terminal insulating isolation plate and said first isolation handle are made of epoxy resin material.
6. The isolation guard for transformer low-voltage end operations of claim 1, wherein said second insulating isolation guard assembly comprises: a plurality of second hooks and an arrester insulation barrier plate fixed by the plurality of second hooks, the second hooks comprising: the transformer is characterized by comprising a second hook body, a second hanging lug arranged at one end of the second hook body and used for hooking the second hook to the grounding flat iron of the transformer rack, and a second bayonet arranged at the other opposite end of the second hook body, wherein a plurality of clamping grooves are formed in the second bayonet, and the clamping grooves are formed in the second bayonet, wherein the clamping grooves are formed in the clamping grooves, and the clamping grooves are formed in the clamping grooves:
and holding one end of the lightning arrester insulating isolation plate in any clamping groove of the second bayonet by hand, and horizontally fixing the lightning arrester insulating isolation plate.
7. The isolation protection device for transformer low voltage end operation of claim 6, wherein the plurality of second hooks are identically configured.
8. The insulation protection device for transformer low voltage end operation according to claim 7, wherein the lightning arrester insulation board is in a flat plate shape, a second insulation handle is provided on the lightning arrester insulation board, and the lightning arrester insulation board and the second insulation handle are made of epoxy resin material.
9. The isolation and protection device for operation of a low voltage terminal of a transformer according to claim 1, wherein the third insulation and isolation protection component is a clip structure with an open end at one side, and a cross section of the clip structure is U-shaped.
10. The insulation shield apparatus for transformer low voltage end operation of claim 9, wherein the open end of the third insulation shield assembly is narrowed and has a certain elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311801458.2A CN117728307A (en) | 2023-12-26 | 2023-12-26 | Isolation protection device for operation of low-voltage end of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311801458.2A CN117728307A (en) | 2023-12-26 | 2023-12-26 | Isolation protection device for operation of low-voltage end of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117728307A true CN117728307A (en) | 2024-03-19 |
Family
ID=90201463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311801458.2A Pending CN117728307A (en) | 2023-12-26 | 2023-12-26 | Isolation protection device for operation of low-voltage end of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117728307A (en) |
-
2023
- 2023-12-26 CN CN202311801458.2A patent/CN117728307A/en active Pending
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