CN210489514U - Modularized three-phase independent solid insulated switch - Google Patents
Modularized three-phase independent solid insulated switch Download PDFInfo
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- CN210489514U CN210489514U CN201921329914.7U CN201921329914U CN210489514U CN 210489514 U CN210489514 U CN 210489514U CN 201921329914 U CN201921329914 U CN 201921329914U CN 210489514 U CN210489514 U CN 210489514U
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Abstract
The utility model discloses a modularized three-phase independent solid insulated switch, which comprises an A-phase switch body, a B-phase switch body and a C-phase switch body which are arranged on a sheet metal frame and are mutually independently arranged; each phase of switch body comprises an insulation box body, a vacuum arc extinguish chamber arranged on the insulation box body and an insulation pull rod connected with the vacuum arc extinguish chamber, wherein the other end of the insulation pull rod extends out of the insulation box body; the extending end of the insulating pull rod is connected with a switch operating mechanism; each phase of direct-acting three-position isolating switch is respectively connected with an isolating switch operating mechanism. The utility model discloses an A, B, C three-phase stand alone type sets up in the solid insulated switch, has guaranteed the insulation between looks and the looks, ensures safe, reliable of equipment, and three-phase switch body compact arrangement, has realized the miniaturization of structure to can realize the modularization assembly.
Description
Technical Field
The utility model relates to a solid insulated switch especially relates to a modularization three-phase stand alone type solid insulated switch.
Background
The switchgear is used as an important ring in a power transmission and distribution system, and along with continuous deepening of urban and rural power grid transformation, a power distribution network generally adopts a ring network for power supply, high voltage directly deepens into a load center, so that the high-speed development of a ring network cabinet is promoted, and the annual output of the ring network cabinet is more than 20 ten thousand.
Due to the excellent insulation and arc extinguishing performance of the SF6 gas, the SF6 insulated switchgear is widely applied to power grids. However, the greenhouse effect of the SF6 gas is CO223900 times higher than the standard gas emission limit, which is listed in the Kyoto protocol. The solid insulation switchgear is a solid insulation switchgear which is an outstanding representative of replacing SF6 insulation switchgear, but the solid insulation switchgear mainly utilizes materials such as epoxy resin to realize solid seal insulation, but the epoxy resin has two recognized problems, namely non-methane total hydrocarbon waste gas is generated in the production process; secondly, the degradation cannot be carried out.
The existing solid insulated switchgear for replacing SF6 insulated switchgear mainly adopts a three-phase integrated structure, namely, a A, B, C three-phase main conductive loop is fixedly sealed in an insulator, the scheme has the advantages of low mold investment and high production efficiency, no insulation measure exists between phases, and the phenomenon of insulation damage of the phases of the equipment is easily caused in the environments of moisture, dirt and the like in the actual use process of the equipment, so that the safety of the equipment is endangered.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a modularization three-phase stand alone type solid insulation switch, ABC three-phase switch body independent setting in the switch, insulating between looks with, and can realize the modularization assembly.
The technical scheme is as follows: the utility model discloses a modularized three-phase independent solid insulated switch, which comprises an A-phase switch body, a B-phase switch body and a C-phase switch body which are arranged on a sheet metal frame and are arranged independently; each phase of switch body comprises an insulation box body, a vacuum arc extinguish chamber arranged on the insulation box body and an insulation pull rod connected with the vacuum arc extinguish chamber, wherein the other end of the insulation pull rod extends out of the insulation box body; the extending end of the insulating pull rod is connected with a switch operating mechanism; each phase of direct-acting three-position isolating switch is respectively connected with an isolating switch operating mechanism.
Preferably, the A, B, C three-phase switch body is installed on the sheet metal frame at intervals.
Preferably, a sealing ring for sealing is arranged between the A, B, C three-phase switch body and the sheet metal frame.
Preferably, a sealant is coated between the sealing cover plate and the insulating box body.
Preferably, the switch operating mechanism is a spring energy storage operating mechanism and is operated electrically or manually; the isolating switch adopts a manual operating mechanism,
preferably, the insulation case body is made of degradable epoxy resin.
Has the advantages that: compared with the prior art, the utility model discloses following beneficial effect has: (1) the utility model discloses an A, B, C three-phase stand alone type sets up in the solid insulated switch, has guaranteed the insulation between looks and the looks, ensures safe, the reliable of equipment to can realize the modularization assembly. (2) The insulation mode of non-SF 6 gas and novel solid insulation material is adopted, so that the environment protection is realized in a real sense. (3) The three-phase switch body utilizes sealed apron to seal, effectively prevents the entering of moisture. (4) The three-phase switch bodies are compactly arranged at intervals, and the miniaturization of the structure is realized.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a bottom view of the present invention;
fig. 3 is a left side view of the present invention;
fig. 4 is a schematic structural view of the a-phase switch body of the present invention;
fig. 5 is a schematic structural view of a B-phase switch body of the present invention;
fig. 6 is a schematic structural diagram of the C-phase switch body of the present invention.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the specific examples.
As shown in fig. 1-6, wherein, the switch comprises a 1-a phase switch body, a 2-B phase switch body, a 3-C phase switch body, a 4-switch operating mechanism, a 5-isolating switch operating mechanism, a 6-sheet metal frame, a 7-incoming line conducting rod, an 8-vacuum arc extinguish chamber, a 9-insulating pull rod, a 10-direct acting type three-station isolating switch, an 11-outgoing line conducting rod, a 12-insulating box body and a 13-sealing cover plate. The utility model discloses a modularization three-phase independent type solid insulated switch, including installing A looks switch body 1, B looks switch body 2 and the C looks switch body 3 that mutually independent set up on sheet metal frame 6. ABC three-phase refers to ABC three-phase alternating current. Each phase of switch body 3 comprises an insulation box body 12, a vacuum arc extinguish chamber 8 arranged on the insulation box body 12 and an insulation pull rod 9 connected with the vacuum arc extinguish chamber 8, the other end of the insulation pull rod 9 extends out of the insulation box body 12, an incoming wire conducting rod 7 and an outgoing wire conducting rod 11 are respectively arranged on the opposite sides of the insulation box body 12, one end of a direct-acting three-station isolating switch 10 is connected with the incoming wire conducting rod 7, the other end of the direct-acting three-station isolating switch is connected with the outgoing wire conducting rod 11, and a sealing cover plate 13 used for preventing moisture is covered on the insulation box body 12. As shown in fig. 3, the extending end of the insulating pull rod 9 is connected with the switch operating mechanism 4, and the vacuum arc-extinguishing chamber 8 in the three-phase switch body A, B, C is connected with the switch operating mechanism 4 through the insulating pull rod 9, so that the switch part and the mechanism part are connected. As shown in fig. 2, each phase of the direct-acting three-position disconnecting switch 10 is connected with the disconnecting switch operating mechanism 5.
The a-phase switch body 1, the B-phase switch body 2, and the C-phase switch body 3 of the present embodiment are arranged side by side with a gap left therebetween, as shown in fig. 1. The metal plate frame 6 is reserved with mounting holes which are mutually spaced for mounting an A, B, C three-phase switch, in order to ensure the miniaturization of the whole size of the switch device and combine the convenience in the process of actual producers, the gap between the three-phase switch and the switch device is controlled to be between 5 and 15mm, and the gap of the embodiment is 10 mm. The disconnecting switch of the embodiment is a three-position disconnecting switch, namely three working positions of closing, isolating and grounding, and the direct-acting three-position disconnecting switch shown in fig. 4 to 6 is in the isolating position, and is selected to be in the closing position or the grounding position according to requirements in practical application. The insulation box body 12 is embedded and sealed by the sealing cover plate 13, and the contact part of the insulation box body and the sealing cover plate is sealed by a sealing ring coated with sealant, so that the insulation box body is sealed, the entry of damp gas is effectively prevented, and the safety and the reliability of equipment are ensured.
The A, B, C three-phase switch body of this embodiment preferably uses novel degradable epoxy to constitute, and the principal ingredients is nylon and the glass fiber of certain proportion, and casting moulding after the homogeneous mixing, and with inlet wire conducting rod 7, the conducting rod 11 that is qualified for the next round of competitions, vacuum interrupter 8 together solid seal in insulating case body 12, realize integration casting moulding.
Claims (6)
1. A modularized three-phase independent solid insulated switch is characterized by comprising an A-phase switch body (1), a B-phase switch body (2) and a C-phase switch body (3) which are arranged on a sheet metal frame (6) and are arranged independently; each phase of switch body comprises an insulation box body (12), a vacuum arc-extinguishing chamber (8) arranged on the insulation box body (12), and an insulation pull rod (9) connected with the vacuum arc-extinguishing chamber (8), wherein the other end of the insulation pull rod (9) extends out of the insulation box body (12), one end of a direct-acting three-station isolating switch (10) is connected with an incoming wire conducting rod (7), the other end of the direct-acting three-station isolating switch is connected with an outgoing wire conducting rod (11), and a damp-proof sealing cover plate (13) is covered on the insulation box body (12); the extending end of the insulating pull rod (9) is connected with the switch operating mechanism (4); each phase of the direct-acting three-position isolating switch (10) is respectively connected with an isolating switch operating mechanism (5).
2. A modular three-phase freestanding solid insulated switch according to claim 1, wherein the A, B, C three-phase switch body is mounted spaced apart on a sheet metal frame (6).
3. The modular three-phase freestanding solid-state insulated switch of claim 1, wherein a sealing ring for sealing is provided between the A, B, C three-phase switch body and the sheet metal frame.
4. The modular three-phase freestanding solid insulated switch of claim 1, wherein a sealant is applied between the sealing cover plate (13) and the insulation box body (12).
5. A modular three-phase freestanding solid insulated switch according to claim 1, wherein the switch operating mechanism (4) is a spring stored energy operating mechanism, operated electrically or manually; the isolating switch adopts a manual operating mechanism.
6. Modular three-phase freestanding solid insulated switch according to claim 1, characterized in that the insulation box body (12) is made of degradable epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921329914.7U CN210489514U (en) | 2019-08-16 | 2019-08-16 | Modularized three-phase independent solid insulated switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921329914.7U CN210489514U (en) | 2019-08-16 | 2019-08-16 | Modularized three-phase independent solid insulated switch |
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| Publication Number | Publication Date |
|---|---|
| CN210489514U true CN210489514U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921329914.7U Active CN210489514U (en) | 2019-08-16 | 2019-08-16 | Modularized three-phase independent solid insulated switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613473A (en) * | 2020-05-27 | 2020-09-01 | 南京海兴电网技术有限公司 | Slow-closing type outdoor alternating-current high-voltage isolating switch with built-in fracture |
-
2019
- 2019-08-16 CN CN201921329914.7U patent/CN210489514U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613473A (en) * | 2020-05-27 | 2020-09-01 | 南京海兴电网技术有限公司 | Slow-closing type outdoor alternating-current high-voltage isolating switch with built-in fracture |
| CN111613473B (en) * | 2020-05-27 | 2022-11-04 | 南京海兴电网技术有限公司 | Slow-closing type outdoor alternating-current high-voltage isolating switch with built-in fracture |
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