CN202068115U - Circuit breaker cabinet - Google Patents
Circuit breaker cabinet Download PDFInfo
- Publication number
- CN202068115U CN202068115U CN 201020654187 CN201020654187U CN202068115U CN 202068115 U CN202068115 U CN 202068115U CN 201020654187 CN201020654187 CN 201020654187 CN 201020654187 U CN201020654187 U CN 201020654187U CN 202068115 U CN202068115 U CN 202068115U
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- switch
- voltage
- epoxy resins
- insulation layer
- resins insulation
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Abstract
The utility model discloses a circuit breaker cabinet, wherein a primary circuit device at each phase high voltage in a cabinet body comprises six modules of a high-voltage bus, a three-station high-voltage switch, a circuit breaker, a high-voltage connecting part, a current transformer and a voltage transformer which are respectively sealed in epoxy resin insulation layers formed through injection compression molding through epoxy resin insulation materials; the connection among the six modules is realized through the connection between plugs and sockets; an insulation elastic seal cushion is arranged between the epoxy resin insulation layers at the joint; and a semi-conductive material layer which is in conductive connection with the cabinet body is arranged on each outer surface of the respective epoxy resin insulation layer, except the part outside the joint surface of the mutually spliced insulation layers. Compared with the prior art, the circuit breaker cabinet of the utility model has the advantages of environmental protection, no arcing, small volume, high environment adaptiveness, all insulation and omniseal, convenience in installation and maintenance, and safety and reliability in running.
Description
Technical field
The utility model belongs to the manufacturing technology field of power equipment, particularly relates to the breaker cabinet that a kind of parts all adopt solid insulation.
Background technology
At present the switchgear majority of 3.6kV-40.5kV electric pressure is as dielectric with air or sulfur hexafluoride gas, second switch in its breaker cabinet, load or isolation switch contact are the cutter head formula, alternate air or the sulfur hexafluoride gas isolated insulation of just utilizing.Though the insulating capacity of sulfur hexafluoride gas is higher than air, but well below epoxy resin, so adopt the air insulation or the switchgear of sulfur hexafluoride gas-insulating no matter be, its overall dimension is all bigger, and owing to alternately well do not keep apart, in case inner arcing occurs, whole switch all can be affected, and scraps until switch integral body.Use the switchgear of sulfur hexafluoride gas-insulating in addition, switch places a sulfur hexafluoride gas that is filled with certain pressure to seal in the gas tank, relative air insulation switchgear, it is filthy that switch can be avoided, salt fog, the influence of external environment conditions such as condensation, but because gas pressure is subjected to the influence of temperature and height above sea level, the environmental suitability of sulfur hexafluoride gas insulation switch cabinet is also bad, the feasible switchgear with sulfur hexafluoride gas-insulating of characteristic that is exactly sulfur hexafluoride gas itself in addition has following drawback: first, sulfur hexafluoride gas is equivalent to 24000 times of carbon dioxide to the destructiveness of atmospheric ozone layer, will aggravate greenhouse effect in case leak; The second, the subfluoride that sulfur hexafluoride gas facilitates electric arc to decompose at moisture content transfers acid speciality to, and human body is all had harmful effect to product and environment; The 3rd, the condensation point of sulfur hexafluoride gas reduces along with the rising of air pressure, and is relatively poor with its environmental suitability as the power equipment of dielectric; The 4th, the relative humidity permissible value of sulfur hexafluoride gas is very low, and the manufacturing process of corresponding power equipment and environmental requirement are strict; The 5th, relatively the air sulfur hexafluoride gas has better arc extinguishing ability but the generation that can not stop electric arc, in case inner arcing takes place, not only the electric equipment of gas tank inside is damaged, even can cause gas tank blast, the safety that jeopardizes equipment and operating personnel.
In sum, develop more advancedly, safer, more the switchgear of environmental protection just seems necessary, also is the requirement of power switchgear industry development.
Summary of the invention
Problem to be solved in the utility model provides a kind of breaker cabinet, and it is big that it can solve existing mesohigh breaker cabinet volume, the problem that fail safe and reliability are low.
In order to address the above problem, the technical solution of the utility model is: this breaker cabinet includes cabinet, device on each phase primary high-voltage circuit in the described cabinet is by interconnective high voltage bus, three station high-voltage switch gears, circuit breaker, current transformer and high pressure connector constitute, high voltage bus on described each phase primary high-voltage circuit, three station high-voltage switch gears, circuit breaker, current transformer, high pressure connector and voltage transformer are enclosed in respectively in the epoxy resins insulation layer by the epoxy resin insulation material injection-compression molding, connection between them all is a plug and being connected of socket, between the epoxy resins insulation layer of joint, the insulation elastic sealing gasket is housed, the part of outer surface except that the insulating barrier composition surface of mutual grafting of their described epoxy resins insulation layers separately is provided with one deck semiconductive material layer, these semiconductive material layers all are connected with described cabinet conduction, and the resistance value R of the every cm distance of outer surface of described semiconductive material layer is: 500 ohm≤R≤10000 ohm.
In the technique scheme, technical scheme can be more specifically: described plug and being connected of socket are that plug one side's electric conductor inserts in socket one side's the electric conductor, the taper body of plug one side's epoxy resins insulation layer inserts the interior connection of bellmouth of socket one side's epoxy resins insulation layer, be fastenedly connected the mutual crimping of described semiconductive material layer of the described semiconductive material layer of plug one side's outer surface and socket one side's outer surface between plug one side's epoxy resins insulation layer and socket one side's the epoxy resins insulation layer by screw rod.
In the compound mode of above-mentioned various technical schemes, can also be more specifically: described three station high-voltage switch gears include first switch and second switch, described first switch and its contact of second switch all are to adopt vacuum insulation and arc extinguishing, and its contact is contained in the switch in the vacuum tube; The described first switch fixed contact link is the high voltage input terminal interface; The described first switch movable contact link is connected with described second switch fixed contact link, and this link is provided with the high-voltage output end interface; The moving contact link of described second switch is provided with the earth terminal interface; Described first switch and described second switch and the connector between them all are encapsulated in the inside of the epoxy resins insulation layer that forms with the automatic pressure gelation process pressure injection, and the described semiconductive material layer of this three stations high-voltage switch gear is located at the outer surface of the described epoxy resins insulation layer except that each interface; Described circuit breaker has vacuum interrupter, this vacuum interrupter and the fixed contact link that is attached thereto, the moving contact link, all be encapsulated in the inside of the epoxy resins insulation layer that forms with the automatic pressure gelation process pressure injection with the equal casting die that is connected with described moving contact link, the insulated tension pole that is connected with described breaker operation mechanism is encapsulated in the hole of described epoxy resins insulation layer by the silicone rubber seal cover, inside in this hole, the junction of described epoxy resins insulation layer and moving contact link is in described equal casting die; Described moving contact link is the high voltage input terminal interface, and described fixed contact link is the high-voltage output end interface; Semiconductive material layer on the described circuit breaker is located at the outer surface of the described epoxy resins insulation layer except that each interface.
The alleged semiconductive material layer of the utility model can adopt existing material and the technology of making resistance to make, generally can by in conductive carbon powder, the electrically conductive graphite any with dilute binding agent and mix and constitute.
The resistance value of the every cm distance of the utility model alleged semiconductive material layer outer surface is meant the resistance value between 2 of 1 centimetre of this laminar surface any distance.
Owing to adopted technique scheme, the utility model compared with prior art has following beneficial effect:
1. good insulation preformance, heat radiation be easily: parts of this breaker cabinet are the epoxy resin pressure injection and form, and electrification in high voltage partly directly bonds together with epoxy resin, good insulation preformance not only, and help distributing of heat.
2. safety and environmental protection: need not sulfur hexafluoride gas in this breaker cabinet as dielectric, do not have the hidden danger of leakage, the accident of gas tank blast can not take place, can not impact, can not aggravate greenhouse effect to environment.
3. can avoid alternate arcing: parts in this breaker cabinet are independent module, adopt the epoxy resin pressure injection to form, and the epoxy resins insulation laminar surface is coated with the semiconductive material layer and reliably is connected with cabinet, does not have alternate arcing.
4. non-inductive voltage, safer: parts in this breaker cabinet are independent module, adopt the epoxy resin pressure injection to form, the epoxy resins insulation laminar surface is coated with the semiconductive material layer and reliably is connected with cabinet, and the surface induction voltage of epoxy resins insulation layer can be controlled in the safe voltage effectively.
5. environmental suitability is strong, the operation safety and reliability: parts of this breaker cabinet adopt solid insulation, the different plug formulas that partly adopt connect and silicone rubber seal, and electrification in high voltage partly is not subjected to the influence of environment, improves fail safe, reliability and the environmental suitability of switchgear operation.
6. simple in structure, volume is little, easy to maintenance: parts of this breaker cabinet adopt modularized design, solid insulation, structure is very simple, and volume is little, when realizing the miniaturization Design theory, convenient maintenance and the replacing of using on-the-spot to module, the switchgear volume is equivalent to 1/3rd of general switchgear.
Description of drawings
Fig. 1 is the front view of the utility model embodiment;
Fig. 2 is the right view of the utility model embodiment;
Fig. 3 is the structural representation of three station high-voltage switch gears part among the utility model embodiment;
Fig. 4 is the structural representation of circuit breaker among the utility model embodiment.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing:
The organization plan of breaker cabinet shown in Figure 1 is as follows:
The identical primary high-voltage circuit device of three-phase circuit structure is housed respectively in hyperbaric chamber 1, each phase primary high-voltage circuit device is by interconnective high voltage bus 3 successively, three station high-voltage switch gears 2, circuit breaker 4, current transformer 5, high pressure connector 6, the electric connection structure and the operation principle of this part are same as the prior art.
The output of high pressure connector 6 is connected with cable shoes and cable 10 with the voltage transformer 8 of 7 li of voltage transformer chambers and the lightning arrester 11 of 9 li of cable vaults respectively, and the electric connection structure and the operation principle of this part are same as the prior art.
The breaker operation mechanism 13 that the operating mechanism chamber is 12 li connects circuit breaker 4, the three station high-voltage switch gear operating mechanisms 14 that the operating mechanism chamber is 12 li pass the connector that cabinet 16 connects three station high-voltage switch gears 2, the electric connection structure of this part and operation principle and prior art are basic identical, the attended operation part of different is three station high-voltage switch gear operating mechanisms 14 and three station high-voltage switch gears 2 has two, and the operating principle of these operation parts is description of contents in the back.
The electric conductor 3.1 of high voltage bus 3 inserts in the fixed contact link 2.1 of three station high-voltage switch gears 2, high voltage bus 3 the taper body of epoxy resins insulation layer 3.2 insert connection in the bellmouth of three station high-voltage switch gears, 2 epoxy resins insulation layers 2.13, between the epoxy resins insulation layer 2.13 of the epoxy resins insulation layer 3.2 of high voltage bus 3 and three station high-voltage switch gears 2 electrically insulating silicone rubber sealing gasket 17 is housed, screws in the screwed hole insertion that the opposing party is embedded in the epoxy resins insulation layer by screw rod from a side through hole between epoxy resins insulation layer 3.2 and the epoxy resins insulation layer 2.13 and realize that the hermetic seal of high pressure electric conductor and outside air is fastenedly connected.The described semiconductive material layer 2.14 mutual crimping of the semiconductive material layer 3.3 of high voltage bus 3 outer surfaces and three station high-voltage switch gears, 2 outer surfaces.
Three station high-voltage switch gears 2 shown in Figure 3 include first switch that is made of vacuum interrupter 2.2, fixed contact link 2.1 and moving contact link 2.3 etc. and the second switch that is made of vacuum interrupter 2.10, fixed contact link 2.9 and moving contact link 2.11 etc.; The moving contact link 2.3 of first switch is connected with the fixed contact link 2.9 of second switch with connector 2.8 by screw, and moving contact link 2.3 also is connected with one by screw equal casting die 2.4; Vacuum interrupter 2.2,2.10, fixed contact link 2.1,2.9, moving contact link 2.3,2.11, connector 2.8, equal casting die 2.4 and attachment screw, and two vacuum interrupters 2.2,2.10 moving contact and whole connectors of moving contact link after assembling is finished, all be encapsulated in the inside of the epoxy resins insulation layer 2.13 that forms with the automatic pressure gelation process pressure injection, curing molding epoxy resins insulation layer 2.13 be provided with the hole that the first switch insulation pull bar 2.5 and second switch pull bar 2.11 are installed, insulated tension pole 2.5 in first switch overlaps 2.6 sealed being isolated in its installing hole with interior part by silicone rubber seal, the high pressure electric conductor of three station high-voltage switch gears 2 is all sealed with the extraneous solid insulation of realizing, wherein the fixed contact link 2.1 of first switch is as the high voltage input terminal interface, the moving contact link 2.3 of first switch is as the high-voltage output end interface, epoxy resins insulation layer 2.13 is except the outer surface in these high pressure input/output interfaces and the above-mentioned installing hole, be coated with the semiconductive material layer 2.14 that one deck is housed, semiconductive material layer 2.14 is mixed and made into by conductive carbon powder and dilution binding agent, the dilution binding agent is by ether solvent, phenolic resins, thermosetting resin mixes to be formed (in the middle of other embodiment, replace conductive carbon powder also to have the technique effect identical with electrically conductive graphite) with present embodiment, constitute and coating layer thickness by the composition of regulating the semiconductive material layer, control its outer surface and be 500 ohm-10000 ohm at the resistance value R of any point-to-point transmission of any every cm distance and get final product.This semiconductive material layer of each module in the present embodiment is all carried out according to this standard, and a little influence of this numerical value deviation is little, and this resistance value is too small to be caused easily being subjected to the effect of ambient electromagnetic field and produce inductive loop and generate heat; This resistance value crosses that conference makes that module surface earth resistance is excessive and the induced potential that increases the module surface, personnel or equipment around the too high current potential entail dangers to.
The pull bar 2.11 of three station high-voltage switch gear operating mechanisms 14 by the push-and-pull second switch realizes that high-voltage output ends to the conducting ground connection of earth terminal or open circuit over the ground, realize connection or the isolation of high-voltage output ends to high voltage input terminal by the insulated tension pole 2.5 of push-and-pull first switch.Mutual interlocking gear in the three station high-voltage switch gear operating mechanisms 14 can make high-voltage output end obtain to connect three kinds of station states of high pressure, earth-free isolated high-voltage and ground connection isolated high-voltage to the interlocking push-and-pull action of pull bar 2.11 with insulated tension pole 2.5.
Circuit breaker 4 shown in Figure 4 is high pressure fixed sealing type circuit breakers of solid insulation, its structure and principle are identical with first switch in the three station high-voltage switch gears shown in Figure 3, its high pressure electric conductor and extraneous space are all isolated by the insulating material of solid, the moving contact link 4.3 that is connected with moving contact conduction in the vacuum interrupter 4.2 is as the electric connecting terminal of high pressure input, the fixed contact link 4.1 that is connected with fixed contact in the vacuum interrupter 4.2 is as the electric connecting terminal of high pressure output, these two ports are socket, and the outer surface of epoxy resins insulation layer 4.5 outside the installing hole of these two ports and insulated tension pole 4.4 also application illustrates described semiconductive material layer 4.6 just like Fig. 3.Breaker operation mechanism 13 push-and-pull insulated tension poles 4.4 can be controlled breaker closing or separating brake.
Claims (3)
1. breaker cabinet, include cabinet (16), device on each phase primary high-voltage circuit in the described cabinet (16) is by interconnective high voltage bus (3), three station high-voltage switch gears (2), circuit breaker (4), current transformer (5) and high pressure connector (6) constitute, it is characterized in that: the high voltage bus (3) on described each phase primary high-voltage circuit, three station high-voltage switch gears (2), circuit breaker (4), current transformer (5), high pressure connector (6) and voltage transformer (8) are enclosed in respectively in the epoxy resins insulation layer by the epoxy resin insulation material injection-compression molding, connection between them all is a plug and being connected of socket, insulation elastic sealing gasket (17) is housed between the epoxy resins insulation layer of joint, the part of outer surface except that the insulating barrier composition surface of mutual grafting of their described epoxy resins insulation layers separately is provided with one deck semiconductive material layer, these semiconductive material layers all are connected with described cabinet (16) conduction, and the resistance value R of the every cm distance of outer surface of described semiconductive material layer is: 500 ohm≤R≤10000 ohm.
2. a kind of breaker cabinet according to claim 1, it is characterized in that: described plug and being connected of socket are that plug one side's electric conductor (3.1) inserts in socket one side's the electric conductor (2.1), the taper body of plug one side's epoxy resins insulation layer (3.2) inserts the interior connection of bellmouth of socket one side's epoxy resins insulation layer (2.13), be fastenedly connected the described semiconductive material layer (3.3) of plug one side's outer surface and the mutual crimping of the described semiconductive material layer (2.14) of socket one side's outer surface between plug one side's epoxy resins insulation layer (3.2) and socket one side's the epoxy resins insulation layer (2.13) by screw rod.
3. a kind of breaker cabinet according to claim 1 and 2, it is characterized in that: described three station high-voltage switch gears (2) include first switch and second switch, described first switch and second switch all are to adopt vacuum insulation and arc extinguishing, have the switch of vacuum tube; The described first switch fixed contact link (2.1) is the high voltage input terminal interface; The described first switch movable contact link (2.3) is connected with described second switch fixed contact link (2.9), and this link is provided with the high-voltage output end interface; The moving contact link (2.11) of described second switch is provided with the earth terminal interface; Described first switch and described second switch and the connector between them (2.8) all are encapsulated in the inside of the epoxy resins insulation layer (2.13) that forms with the automatic pressure gelation process pressure injection, and the described semiconductive material layer (2.14) of this three stations high-voltage switch gear (2) is located at the outer surface of the described epoxy resins insulation layer (2.13) except that each interface; Described circuit breaker (4) has vacuum interrupter (4.1), this vacuum interrupter (4.1) and the fixed contact link (4.14) that is attached thereto, moving contact link (4.2), all be encapsulated in the inside of the epoxy resins insulation layer (4.11) that forms with automatic pressure gelation process with the equal casting die (4.10) that is connected with described moving contact link (4.2), the insulated tension pole (4.3) that is connected with described breaker operation mechanism (13) is encapsulated in the hole of described epoxy resins insulation layer (4.11) by silicone rubber seal cover (4.5), inside in this hole, the junction of described epoxy resins insulation layer (4.11) and moving contact link (4.2) is in described equal casting die (4.10); Described moving contact link (4.2) is the high voltage input terminal interface, and described fixed contact link (4.14) is the high-voltage output end interface; Semiconductive material layer (4.13) on the described circuit breaker (4) is located at the outer surface of the described epoxy resins insulation layer 4.11 except that each interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020654187 CN202068115U (en) | 2010-07-22 | 2010-12-13 | Circuit breaker cabinet |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020267726.9 | 2010-07-22 | ||
| CN201020267726 | 2010-07-22 | ||
| CN 201020654187 CN202068115U (en) | 2010-07-22 | 2010-12-13 | Circuit breaker cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202068115U true CN202068115U (en) | 2011-12-07 |
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ID=45061968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020654187 Expired - Fee Related CN202068115U (en) | 2010-07-22 | 2010-12-13 | Circuit breaker cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202068115U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001136A (en) * | 2012-11-30 | 2013-03-27 | 北海银河开关设备有限公司 | Solid insulating looped network circuit breaker cabinet |
| CN103000411A (en) * | 2012-11-30 | 2013-03-27 | 北海银河开关设备有限公司 | Method for manufacturing solid insulating circuit breaker pole |
| CN103036171A (en) * | 2012-12-04 | 2013-04-10 | 北海银河开关设备有限公司 | Solid insulation voltage transformer cabinet |
| CN108807067A (en) * | 2018-05-28 | 2018-11-13 | 许继集团有限公司 | Box on-pole switch equipment and its outlet casing tube |
| CN109193444A (en) * | 2018-11-20 | 2019-01-11 | 湖北理工学院 | A kind of electric insulation cabinet |
| CN111371033A (en) * | 2020-03-18 | 2020-07-03 | 南通苏源恒炫电气有限公司 | Environment-friendly solid insulation metal-enclosed switchgear suitable for severe cold environment |
| CN114362020A (en) * | 2022-01-07 | 2022-04-15 | 沈通科技有限公司 | Primary and secondary fusion ring main unit |
-
2010
- 2010-12-13 CN CN 201020654187 patent/CN202068115U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001136A (en) * | 2012-11-30 | 2013-03-27 | 北海银河开关设备有限公司 | Solid insulating looped network circuit breaker cabinet |
| CN103000411A (en) * | 2012-11-30 | 2013-03-27 | 北海银河开关设备有限公司 | Method for manufacturing solid insulating circuit breaker pole |
| CN103000411B (en) * | 2012-11-30 | 2015-03-04 | 北海银河开关设备有限公司 | Method for manufacturing solid insulating circuit breaker pole |
| CN103036171A (en) * | 2012-12-04 | 2013-04-10 | 北海银河开关设备有限公司 | Solid insulation voltage transformer cabinet |
| CN108807067A (en) * | 2018-05-28 | 2018-11-13 | 许继集团有限公司 | Box on-pole switch equipment and its outlet casing tube |
| CN108807067B (en) * | 2018-05-28 | 2020-01-10 | 许继集团有限公司 | Box type pole-mounted switch equipment and outlet sleeve thereof |
| CN109193444A (en) * | 2018-11-20 | 2019-01-11 | 湖北理工学院 | A kind of electric insulation cabinet |
| CN111371033A (en) * | 2020-03-18 | 2020-07-03 | 南通苏源恒炫电气有限公司 | Environment-friendly solid insulation metal-enclosed switchgear suitable for severe cold environment |
| CN114362020A (en) * | 2022-01-07 | 2022-04-15 | 沈通科技有限公司 | Primary and secondary fusion ring main unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20191213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |