CN103151723A - Completely-sealed and complete-solid insulation ring main unit - Google Patents

Completely-sealed and complete-solid insulation ring main unit Download PDF

Info

Publication number
CN103151723A
CN103151723A CN2013101171629A CN201310117162A CN103151723A CN 103151723 A CN103151723 A CN 103151723A CN 2013101171629 A CN2013101171629 A CN 2013101171629A CN 201310117162 A CN201310117162 A CN 201310117162A CN 103151723 A CN103151723 A CN 103151723A
Authority
CN
China
Prior art keywords
cabinet
hermetically sealed
ring network
total solid
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2013101171629A
Other languages
Chinese (zh)
Inventor
王建文
乔大明
陆利东
袁战刚
陈锦华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Jinbolian Electric Power Technology Co Ltd
Original Assignee
Shenzhen Jinbolian Electric Power Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Jinbolian Electric Power Technology Co Ltd filed Critical Shenzhen Jinbolian Electric Power Technology Co Ltd
Priority to CN2013101171629A priority Critical patent/CN103151723A/en
Publication of CN103151723A publication Critical patent/CN103151723A/en
Pending legal-status Critical Current

Links

Images

Abstract

The invention discloses a completely-sealed and complete-solid insulation ring main unit, belonging to the field of electrical transmission. The insulation ring main unit comprises a unit body, a circuit breaker body, a breaker operating mechanism and the like, wherein a box-sharing and four-bin structure is adopted for the breaker body, which comprises a body, an isolated grounding switch, an upper outgoing wire seat, a vacuum quenching chamber and an outgoing wire sleeve. The upper outgoing wire seat, the vacuum quenching chamber and the outgoing sleeve are fixedly sealed in the body; the body is formed by an operating box and an upper cover through a sealing ring piece in a sealing manner; the upper outgoing wire seat and the vacuum quenching chamber are fixedly sealed and connected in a pouring way; the breaker operating mechanism is arranged in a mechanism box, and one side of the mechanism box is provided with a gate plate with a sealing component; and the mechanism box and the body are connected through the sealing component. By the adoption of the completely-sealed and complete-solid insulation ring main unit, by designing all high-voltage electrical elements in the solid ring main unit into an epoxy resin box body, by the adoption of the sealing component to carry out sealing in a connecting position, the solid ring main unit is enabled to have excellent sealing performance, and can be configured and used in the sand ground with many rains and winds.

Description

A kind of hermetically sealed total solid insulating ring network cabinet
Technical field
The invention belongs to the electric apparatus field of a kind of transmission ﹠ distribution, particularly relate to a kind of hermetically sealed all solid state insulation ring main unit.
Background technology
In order to improve power supply reliability, make the user obtain power supply from both direction, usually power supply network is connected into annular.This supply power mode is referred to as ring network power supply.In the middle of little distribution system is held in load, usually adopt the ring network power supply, use on the high-tension switch cabinet general custom and be called ring main unit.
Ring main unit generally is divided into air insulation, solid insulation and SF6 and insulate three kinds; be used for deciliter load current; cut-off short circuit current and no-load transformer electric current; the charging current of certain distance overhead transmission line, cable line; rising and control and protective effect, is the important switchgear of ring network power supply and terminal power supply.Air insulation switch cubicle volume is larger, and floor space is large, and has electrified body outside exposed, easily is subject to the impact of external environmental factor, has a lot of potential safety hazards.Volume is little although SF6 gas-insulated ring network cabinet has, compact conformation, be not subjected to the advantages such as the external environment factor affects; but SF6 gas can resolve into toxic gas when arc extinguishing; and easily leak; and SF6 gas belongs to one of internationally recognized six kinds of greenhouse gas; from the angle of environmental protection, should reduce consumption and the range of application thereof of SF6 gas.
Solid insulation ring main unit, because need not to use the SF6 gas-insulated, beginning substitutes the ring main unit that tradition adopts air insulation and SF6 insulation mode gradually.But the solid insulation ring main unit that exists in the market exists mostly that integral sealing effect is not good or the problem that sealing means falls behind.Sealing effectiveness is not good, easily causes electrified body to be corroded because contacting with atmosphere, the larger area of or dust storm abundant in some water resourcess particularly, and ring main unit can be more fragile; And adopt traditional stainless steel welded seal mode, not only processing cost is high, and complex procedures.
Summary of the invention
Technical problem to be solved by this invention is: a kind of hermetically sealed total solid insulating ring network cabinet is provided, has been not suitable for the abundant or dust storm of water resources larger area in order to solve traditional stainless steel welded seal mode, thereby caused the ring main unit can flimsy problem.
The invention provides a kind of hermetically sealed total solid insulating ring network cabinet, comprise cabinet, breaker body, circuit breaker operation mechanism, isolator operating mechanism, cabinet interlock and cabinet bus, described breaker body adopts case 4 chamber structures altogether, comprise body, isolation earthing switch, upper wire outlet seat, vacuum interrupter, outlet casing tube, described upper wire outlet seat, vacuum interrupter, outlet casing tube all are encapsulated in body admittedly; Described body is comprised of by the sealing of sealing ring spare control box and upper cover;
Described upper wire outlet seat admittedly seals to build with vacuum interrupter and is connected;
Described circuit breaker operation mechanism is permanent-magnet operating mechanism, is arranged in mechanism case, and described mechanism case simultaneously is provided with the door-plate with black box; Described mechanism case is connected by black box with body;
Described isolator operating mechanism includes dynamic sealing assembly, transmission component.
The present invention is by all designing all high-voltage charged bodies in solid loop-net cabinet in body, and the junction all adopts black box to seal.
Black box comprises sealing ring and sealed adhesive slot, by double-layer sealing structure, makes it reach the purpose with good seal performance.
Body, upper cover are made by epoxy resin.
CVT is capacitance type potential transformer.
Described vacuum interrupter and body fix, and this structure can guarantee the stability of the closing rebound performance of circuit breaker.
Be provided with radome around described upper wire outlet seat and vacuum interrupter junction, solved admittedly the be honored as a queen problem of non-uniform electric of vacuum interrupter.
Described breaker body outer surface scribbles conductive layer, and so the electrostatic induction electric shock accidents has been avoided in design.
Described isolation earthing switch is three station isolation grounding switchs, and institute comprises three-phase and adopts independent fixed structure design.So design has realized that the isolation earthing switch spaced apart can freely adjust, the purpose that can be used in conjunction with the circuit breaker of different spaced apart, and highly versatile can guarantee again the synchronism that three-phase separate closes a floodgate simultaneously.
Described cabinet interlock and isolator operating mechanism are equipped with, and have avoided mistake deciliter isolation earthing switch; Isolation earthing switch is positioned at above circuit breaker, can realize the full ground connection of main line, has avoided occuring to accidentally injure maintainer's accident; During as incoming line cabinet, earthed switch need not be cancelled, and locking breaker closing function in the time of both can having accomplished that inlet wire is charged can't chargedly be closed the ground cutter, in the time of can guaranteeing that again inlet wire is not charged, and the inlet wire reliable ground.
Described breaker body integrated CVT has facilitated the sampling of electric current, voltage, has realized the miniaturization of Switch main body.CVT is capacitance type potential transformer.
Described and cabinet bus is solid insulation and cabinet bus, and so design provides good insulating properties and sealing, and easy for installation, safe.
Described isolator operating mechanism comprises umbrella tooth group, and so design has realized the forward layout of isolation earthing switch, makes the isolation fracture of three-phase all high-visible.
Compared with prior art, the invention has the beneficial effects as follows:
By all high-voltage charged bodies in solid loop-net cabinet are all designed in the epoxy resin casing, and the junction all adopts black box to seal, and makes solid loop-net cabinet have good sealing, possesses in rainy windy sand ground configuration and uses.
Description of drawings
The present invention is further illustrated below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of hermetically sealed total solid insulating ring network cabinet of the present invention.
Fig. 2 is the structural representation of breaker body of the present invention.
Fig. 3 is the structural representation of isolation earthing switch of the present invention.
Fig. 4 is the structural representation of isolator operating mechanism of the present invention.
Fig. 5 is the illustraton of model of breaker body of the present invention.
in figure: control box 1, body 2, upper cover 3, moving contact 4, upper wire outlet seat 5, vacuum interrupter 6, outlet casing tube 7, mechanism case 8, circuit breaker operation mechanism 9, dynamic sealing assembly 10, radome 11, moving contact bracing frame 12, and cabinet bus 13, grounding contact 14, bent plate 15, connecting lever 16, six side's main shafts 17, umbrella tooth group 18, isolator operating mechanism 20, slide plate 21, cable door 22, front panel 23, door-plate 25, cabinet interlock 26, isolation earthing switch 27, transmission component 28, sealing ring 29.
Embodiment
As shown in Figure 1, 2, 3, breaker body of the present invention comprises body 2, upper cover 3 and inner isolation earthing switch 27, upper wire outlet seat 5, vacuum interrupter 6, outlet casing tube 7, control box 1 and the circuit breaker operation mechanism 9 etc. of installing.Upper wire outlet seat 5, vacuum interrupter 6, radome 11 vertically casts in body 2 inside simultaneously, often all be set to separately mutually a compartment, the quiet end of vacuum interrupter 6 has been fixed moving contact bracing frame 12 up, every phase moving contact 4 adopts two form of a blade, be separately fixed at two faces of moving contact bracing frame 12, the fixed screw two ends adopt folded spring that contact pressure is provided, and moving contact 4 can be around this fixing point rotation.The fixed contact of isolation earthing switch 27 adopts compression molding band position limiting structure, casts in upper cover 3, and upper cover 3 tops be cabinet bus 13 also, upper cover 3 and body 2 are with bolts, inside is provided with sealing ring 29, and locked rear outside scribbles fluid sealant, arrives the sealing effectiveness of IP67.Be designed with the M6 screwed hole above grounding contact 14, the screw hole by fixed contact is screwed into screw, and with locked grounding contact 14, grounding contact 14 becomes 90 degree angles with fixed contact, is positioned at the front wall of body 2.Inwall is adopted and is fixed with in the same way three LED lamps in front, and light can illuminate whole compartment, by three observation windows in breaker body front, can see clearly the position of isolation earthing switch 27.Bump design is adopted in moving contact 4 upper ends, be to contact with fixed contact, reduced the frictional force between contact, increased simultaneously the pressure between contact, the upper end adopts the stud of Intermediate Gray boss to control the spacing of two moving contacts 4 simultaneously, and the bolt two ends are same adopts folded spring to regulate the pressure between contact.be connected with bent plate 15 in the middle of moving contact 4, bent plate 15 other ends are connected with connecting lever 16, connecting lever 16 adopts hexagonal hole to coordinate with six side's main shafts 17, and adopt nylon bolt to be fixed on six side's main shafts 17, respectively there is a nylon sleeve at six side's main shaft 17 two ends, axle sleeve passes the circular hole of body 2, from circular hole outside jump ring on axle sleeve blocks, to guarantee that six side's main shafts 17 can not rock, and can only be in the axle sleeve inner rotation, respectively there is an end cap made of copper the axle sleeve outside, employing is threaded, and be designed with two circular holes that sealing ring 29 stops up fixed hub on bodies 2, meet the requirements of sealing effectiveness.isolation earthing switch 27 three-phases are from left to right arranged, isolator operating mechanism 20 and transmission component 28, dynamic sealing assembly 10, but operation isolation earthed switch 27 after umbrella tooth group 18 forms, power transmission shaft is vertical with six side's main shafts 17, change gearratio to satisfy the gearratio of output shaft and main shaft by umbrella tooth group 18, umbrella tooth group 18 adopts large, the pinion integrated design, large pinion, connector and gearing shaft are by die casting, it is an individuality that screw thread closely cooperates, interlock is reliable, transmission is stable, when adopting brass processing to reduce transmission, umbrella tooth group 18 impacts the vibrations that bring.Even in order to guarantee electrical safety and electric field, gear chamber of new design between the interior B of body 2, C phase compartment has effectively been isolated the electric field of umbrella tooth group 18 with electrified body.Power transmission shaft in isolator operating mechanism 20 is connected with dynamic sealing assembly 10, and dynamic sealing assembly 10 adopts the oil seals design, in bearing is arranged, both played when rotating without the bite phenomenon, effectively played again sealing function.When isolator operating mechanism 20 output work, its power transmission shaft drives dynamic sealing assembly 10 and rotates, dynamic sealing assembly 10 drives simultaneously umbrella tooth group 18 and rotates, after conversion through umbrella tooth group 18, driving six side's main shafts 17 rotates, connecting lever 16 and bent plate 15 that the rotation of six side's main shafts 17 can drive three-phase isolation earthing switch 27 simultaneously rotate, and bent plate 15 will haul moving contact 4 moving contact bracing frame 12 fixing point center rotatings, to reach the closing function of isolation earthing switch 27 combined floodgates, separating brake and ground connection.
Vacuum interrupter 6 moved ends down, be connected with and be flexible coupling and insulated tension pole, the other end that is flexible coupling is connected with bolt with the pre-buried copper spare of outlet casing tube 7, outlet casing tube 7 puts and is screwed into body 2 after silicone rubber sleeve and is connected with it, with vacuum interrupter 6 formation loops, moved ends, outlet casing tube 7 inside are cast with metal ring, and draw wiring point, can connect electrification display, whether charged to demonstrate thread casing 7, outlet casing tube 7 roots are equipped with CVT, can collect easily electric current, the voltage signal of outlet casing tube 7 ends.The contact spring is equipped with in insulated tension pole inside, surpasses the effect that its total kilometres play buffering when pulling vacuum interrupter 6 moved end with the circuit breaker operation mechanism 9 that prevents the insulated tension pole lower end.In circuit breaker operation mechanism 9 sealing and mechanism case 8, mechanism case 8 adopts screws to be connected with 2 of bodies, and that designs equally has sealing ring 29 and a sealant sealing, meets the requirements of degree of protection.Detachable door-plate 25 designs, the parameters performance of conveniently adjusted circuit breaker operation mechanism 9 are adopted in mechanism case 8 back sides.The mechanism case 8 same adhesive tape sealing that adopt of door-plate 25 are processed.Circuit breaker operation mechanism 9 lower ends are provided with the brake cable of sensitive switch and five anti-interlocking use, and the lead-in wire of sensitive switch and brake cable all are drawn out to mechanism case 8 outsides by aviation plug.Thus whole primary structure spare has namely been accomplished whole sealings, and the integral protection grade has arrived IP67, and without any exposed electrified body, can not be subject to the impact of outside any environment.
Body 2 both sides are embedded with seven screwed holes, and there is the pcketing hole cabinet both sides, are screwed body 2, and screw head sinks in pcketing, and the outside is equally flat, and it is tight and together and gapless to reach two switch cubicles during cabinet.In isolation ground connection operating mechanism front, cabinet interlock 26 is housed, has two handle holes to realize that isolation earthing switch 27 closes, divides, grounding function on the slide plate 21 of cabinet interlock 26.cabinet interlock 26 bottoms have individual axle to extend into following cable vault, only have cable door 22 to hang up, the cabinet interlocking shaft of leaving behind, the slide plate 21 of cabinet interlock 26 just can move to assigned address, this moment, the separating brake ground hole just can be aimed at the handle hole of isolator operating mechanism 20, this moment, operating grip can make isolation earthing switch 27 separating brakes, and tail skid 21 just can move to other latched position and operating position, when moving to operating position, handle hole on slide plate 21 on an other hole and isolator operating mechanism 20 over against, this moment, operating grip can make isolation earthing switch 27 close a floodgate.When only having isolation earthing switch 27 separating brake, slide plate 21 just can back move, and when only having isolation earthing switch 27 to close a floodgate, ability moving slide board 21 only has slide plate 21 in this position to the maintenance position, and cable door 22 just can take off.Be fixed with a rotary baffle plate on front panel 23, brake cable one end is fixed on circuit breaker operation mechanism 9, the one end baffle plate on front panel 23 of ining succession, when breaker closing, can pull brake cable, brake cable pulls baffle plate to rotate the handle hole that blocks on front panel 23, just can't disconnecting switch operation operating mechanism 20, in the time of can accomplishing breaker closing, can't operation isolation earthed switch 27, just avoided charged mistake deciliter isolating switch.A sensitive switch is equipped with at cable door 22 places, just can operating breaker after cable door 22 hangs up, and can avoid like this cable door 22 just not shut minute, close circuit breaker, and can mistakenly entering charged chamber.If ring main unit of the present invention is done the incoming line switch cabinet used time, after breaker open operation, outlet casing tube 7 places may be also charged, if this moment, isolation earthing switch 27 was in ground state, electrification display can detect that outlet casing tube 7 places are charged, and electrification display can provide a charged signal to controller, the closing function that controller will the locking circuit breaker, circuit breaker can't close a floodgate, and has just avoided the charged mistake of incoming line cabinet deciliter earthed switch.When outlet casing tube 7 was not charged, electrification display no signal was delivered to controller, the closing function that controller will the release circuit breaker, and circuit breaker can close a floodgate, and makes whole piece circuit reliable ground.Controller is controlled the divide-shut brake of circuit breaker operation mechanism 9; simultaneously by the collection to a circuit current/voltage of circuit breaker; to protecting of a circuit, simultaneously can also upload to the service station by optical fiber etc. collecting each signal, reach the purpose of remote monitoring and operation.

Claims (9)

1. a hermetically sealed total solid insulating ring network cabinet, comprise cabinet, breaker body, circuit breaker operation mechanism (9), isolator operating mechanism (20), cabinet interlock (26) and cabinet bus (13), it is characterized in that:
Described breaker body adopts case four chamber structures altogether, comprise body (2), isolation earthing switch (27), upper wire outlet seat (5), vacuum interrupter (6), outlet casing tube (7), described upper wire outlet seat (5), vacuum interrupter (6), outlet casing tube (7) all are encapsulated in body (2) admittedly; Described body (2) is comprised of by the sealing of sealing ring (29) part control box (1) and upper cover (3);
Described upper wire outlet seat (5) is built with the solid envelope of vacuum interrupter (6) and is connected;
Described circuit breaker operation mechanism (9) is permanent-magnet operating mechanism, is arranged in mechanism case (8), and described mechanism case (8) one side is provided with the door-plate (25) with black box; Described mechanism case (8) is connected by black box with body (2);
Described isolator operating mechanism (20) includes dynamic sealing assembly (10), transmission component (28).
2. hermetically sealed total solid insulating ring network cabinet as claimed in claim 1 is characterized in that: described vacuum interrupter (6) fixes with body (2).
3. hermetically sealed total solid insulating ring network cabinet as claimed in claim 1 is characterized in that: described upper wire outlet seat (5) is provided with radome (11) with around vacuum interrupter (6) junction.
4. hermetically sealed total solid insulating ring network cabinet as claimed in claim 1, it is characterized in that: described breaker body outer surface scribbles conductive layer.
5. hermetically sealed total solid insulating ring network cabinet as claimed in claim 1, it is characterized in that: described isolation earthing switch (27) is three station isolation grounding switchs, institute comprises three-phase and adopts independent fixed structure design.
6. hermetically sealed total solid insulating ring network cabinet as claimed in claim 1 is characterized in that: described cabinet interlock (26) is equipped with isolator operating mechanism (20).
7. hermetically sealed total solid insulating ring network cabinet as claimed in claim 1, is characterized in that: the integrated CVT of described breaker body.
8. hermetically sealed total solid insulating ring network cabinet as claimed in claim 1, it is characterized in that: described and cabinet bus (13) is solid insulation and cabinet bus.
9. hermetically sealed total solid insulating ring network cabinet as claimed in claim 1, it is characterized in that: described isolator operating mechanism (20) comprises umbrella tooth group (18).
CN2013101171629A 2013-04-07 2013-04-07 Completely-sealed and complete-solid insulation ring main unit Pending CN103151723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013101171629A CN103151723A (en) 2013-04-07 2013-04-07 Completely-sealed and complete-solid insulation ring main unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013101171629A CN103151723A (en) 2013-04-07 2013-04-07 Completely-sealed and complete-solid insulation ring main unit

Publications (1)

Publication Number Publication Date
CN103151723A true CN103151723A (en) 2013-06-12

Family

ID=48549657

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013101171629A Pending CN103151723A (en) 2013-04-07 2013-04-07 Completely-sealed and complete-solid insulation ring main unit

Country Status (1)

Country Link
CN (1) CN103151723A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103346504A (en) * 2013-07-17 2013-10-09 宁波天安（集团）股份有限公司 Three-position solid insulation switchgear
CN103594952A (en) * 2013-11-28 2014-02-19 扬州新概念电气有限公司 Solid insulation measuring cabinet with separation disconnecting link
CN104269768A (en) * 2014-09-10 2015-01-07 平高集团有限公司 Shielding cover, embedded pole with shielding cover and solid insulation ring main unit with shielding cover
CN105470848A (en) * 2015-12-01 2016-04-06 国家电网公司 Simple-top parallel-type gas-filling cabinet
CN105958362A (en) * 2016-05-18 2016-09-21 南通阿斯通电器制造有限公司 Novel insulating ring main unit
CN106786114A (en) * 2016-12-31 2017-05-31 扬州北辰电气设备有限公司 A kind of intelligent environmentally friendly gas ring main unit of magneto
CN109888657A (en) * 2019-03-14 2019-06-14 北海银河开关设备有限公司 Rail traction gets higher voltage switching station
CN110346710A (en) * 2019-07-08 2019-10-18 贵州电网有限责任公司 A kind of ring network cabinet outlet starting method for avoiding client from having a power failure
CN112055921A (en) * 2018-03-13 2020-12-08 巴提斯诺股份有限公司 Cabinet for electrical apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1169997A (en) * 1966-07-25 1969-11-12 Ite Circuit Breaker Ltd Automatic reclosing circuit breaker
CN101340066A (en) * 2007-07-05 2009-01-07 北京双杰配电自动化设备有限公司 Solid insulating fully enclosed looped network cabinet
JP2009164001A (en) * 2008-01-08 2009-07-23 Hitachi Ltd Switching device
CN202797734U (en) * 2012-08-24 2013-03-13 亚洲电力设备(深圳)有限公司 Combination switch cabinet of solid insulation fuse
CN203135300U (en) * 2013-04-08 2013-08-14 深圳市金博联电力技术有限公司 Fully sealed all-solid insulation ring main unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1169997A (en) * 1966-07-25 1969-11-12 Ite Circuit Breaker Ltd Automatic reclosing circuit breaker
CN101340066A (en) * 2007-07-05 2009-01-07 北京双杰配电自动化设备有限公司 Solid insulating fully enclosed looped network cabinet
JP2009164001A (en) * 2008-01-08 2009-07-23 Hitachi Ltd Switching device
CN202797734U (en) * 2012-08-24 2013-03-13 亚洲电力设备(深圳)有限公司 Combination switch cabinet of solid insulation fuse
CN203135300U (en) * 2013-04-08 2013-08-14 深圳市金博联电力技术有限公司 Fully sealed all-solid insulation ring main unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EATON POWERING BUSINESS WORLDWIDE: "Application Guide Xiria", 《HTTP://WWW.EATON.UK.COM/ECM/IDCPLG?IDCSERVICE=GET_FILE&ALLOWINTERRUPT=1&REVISIONSELECTIONMETHOD=LATESTRELEASED&NOSAVEAS=0&RENDITION=PRIMARY&DDOCNAME=PCT_565835》 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103346504A (en) * 2013-07-17 2013-10-09 宁波天安（集团）股份有限公司 Three-position solid insulation switchgear
CN103594952A (en) * 2013-11-28 2014-02-19 扬州新概念电气有限公司 Solid insulation measuring cabinet with separation disconnecting link
CN104269768A (en) * 2014-09-10 2015-01-07 平高集团有限公司 Shielding cover, embedded pole with shielding cover and solid insulation ring main unit with shielding cover
CN105470848A (en) * 2015-12-01 2016-04-06 国家电网公司 Simple-top parallel-type gas-filling cabinet
CN105958362A (en) * 2016-05-18 2016-09-21 南通阿斯通电器制造有限公司 Novel insulating ring main unit
CN106786114A (en) * 2016-12-31 2017-05-31 扬州北辰电气设备有限公司 A kind of intelligent environmentally friendly gas ring main unit of magneto
CN106786114B (en) * 2016-12-31 2019-02-22 扬州北辰电气集团有限公司 A kind of intelligent environmentally friendly gas ring network cabinet of magneto
CN112055921A (en) * 2018-03-13 2020-12-08 巴提斯诺股份有限公司 Cabinet for electrical apparatus
CN112055921B (en) * 2018-03-13 2022-12-06 巴提斯诺股份有限公司 Cabinet for electrical apparatus
CN109888657A (en) * 2019-03-14 2019-06-14 北海银河开关设备有限公司 Rail traction gets higher voltage switching station
CN109888657B (en) * 2019-03-14 2020-05-19 北海银河开关设备有限公司 High voltage switch equipment for railway traction
CN110346710A (en) * 2019-07-08 2019-10-18 贵州电网有限责任公司 A kind of ring network cabinet outlet starting method for avoiding client from having a power failure

Similar Documents

Publication Publication Date Title
CN103151723A (en) Completely-sealed and complete-solid insulation ring main unit
CN101340066B (en) Solid insulating fully enclosed looped network cabinet
CN203135300U (en) Fully sealed all-solid insulation ring main unit
CN107528250A (en) A kind of switch cubicle
CN102412519B (en) Solid-sealed polar pole with insulation and switch cabinet
CN102427011B (en) Fuse wire tube and switch cabinet
WO2015043460A1 (en) High-speed grounding switch and grounding switch assembly unit composed thereof
CN102290731B (en) Three-phase common-proper compact type solid insulation high voltage alternating current vacuum switching cabinet
US9269515B2 (en) Insulating cylinder and a main circuit structure using the same
CN103311840B (en) Loop-network switch cabinet solid compositions unit
CN202019159U (en) Intellectualized solid sealing insulation fixed type high-voltage switch cabinet
CN202384284U (en) Fuse tube and switch cabinet
CN203180419U (en) Double-chamber environment-friendly gas-insulated metal-enclosed switchgear
CN205542567U (en) Outdoor vacuum load switch
CN102227059A (en) Intelligent solid closed insulating fixed-type high voltage switchgear
CN105321766A (en) Electric locomotive and vacuum circuit breaker
CN203398615U (en) Gas insulated switchgear
CN202384691U (en) Isolated sealed electrode pillar and switch cabinet
CN202797734U (en) Combination switch cabinet of solid insulation fuse
CN203135303U (en) Environmentally-friendly gas-insulated vacuum sealed-type switch device
CN203193175U (en) Lightning-protection double-case environmentally friendly gas-insulated metal-enclosed switchgear
CN203180421U (en) Single-chamber environment-friendly gas-insulated metal-enclosed switchgear
CN102664121B (en) Insulation cylinder and main loop structure utilizing same
CN202042818U (en) Three-phase integrated compact type solid insulation high-voltage AC vacuum switch cabinet
CN203119374U (en) Miniaturized split solid insulation ring main unit

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130612