CN204633201U - A kind of totally-enclosed all insulation compact Inflatable ring main unit - Google Patents

A kind of totally-enclosed all insulation compact Inflatable ring main unit Download PDF

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Publication number
CN204633201U
CN204633201U CN201520279815.8U CN201520279815U CN204633201U CN 204633201 U CN204633201 U CN 204633201U CN 201520279815 U CN201520279815 U CN 201520279815U CN 204633201 U CN204633201 U CN 204633201U
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CN
China
Prior art keywords
bus
main unit
ring main
totally
enclosed
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Expired - Fee Related
Application number
CN201520279815.8U
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Chinese (zh)
Inventor
贾静
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 HONGYAN ELECTRIC CONTROL EQUIPMENT CO Ltd
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SHENZHEN HONGYAN ELECTRIC CONTROL EQUIPMENT CO Ltd
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Priority to CN201520279815.8U priority Critical patent/CN204633201U/en
Application granted granted Critical
Publication of CN204633201U publication Critical patent/CN204633201U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of totally-enclosed all insulation compact Inflatable ring main unit, its cabinet inside is provided with four chambers, bus-bar room, circuit breaker cart room, cable vault, relay control room respectively, cabinet top place is provided with cabinet top solid isolated bus, cabinet top solid isolated bus arranges electrical connection port, described branch joint is provided with three, connect three bus casings respectively, have main bus bar in each bus casing inner sleeve, three branch joint other ends are connected on static contact head device; Bus-bar room lower end is provided with current transformer, current transformer bottom separates two interfaces, one of them interface stube cable, another interface connects earthed switch by sleeve pipe, earthed switch connects lightning arrester by cable, and described static contact head device is fixed on the valve dividing plate of cabinet bosom.The utility model ring main unit can carry out Installation and Debugging and maintenance from front, namely ensure that fail safe; Turn improve flexibility, volume is little, decreases floor space.

Description

A kind of totally-enclosed all insulation compact Inflatable ring main unit
Technical field
The utility model relates to electrical network field, relates to a kind of totally-enclosed all insulation compact Inflatable ring main unit specifically.
Background technology
Increasingly mature along with ring network power supply technology, ring main unit is with its small and exquisite volume, compact structure, the plurality of advantages such as easy for installation, reliable and being widely used, state's circulating net cabinet technical development is very fast, and performance progressively improves, be mainly reflected in the progressively raising in technical parameter and life-span, volume reduces, failure rate is low, in recent years, domestic enterprise constantly strengthens technological transformation and drops into, have employed multiple development scheme, the production domesticization ring main unit of the different size that released one after another, achieves considerable technological progress.
The transfer current of combined electrical apparatus refers to the three-phase symmetrical current value when fuse and on-load switch conversion cut-off function, is greater than this value three-phase and is only cut-off by fuse.In comparatively glitch current range, exist dispersed in the time reality of fuse three-phase fusing, first a pole fuse with very fast fusing time cut-offs, and in the instantaneous striker action of fusing, triggers trip gear, make on-load switch separating brake.The switch off time that the fuse of all the other two poles determines according to the time-current chracteristic (all the other two-phase currents will be 87% of three-phase current) of its reality, comparing by first opening the opening time that pole fuse striker triggers with on-load switch, being cut-off by on-load switch or the fuse that is left.
Utility model content
For deficiency of the prior art, the technical problems to be solved in the utility model there are provided a kind of totally-enclosed all insulation compact Inflatable ring main unit.
For solving the problems of the technologies described above, the utility model is realized by following scheme: a kind of totally-enclosed all insulation compact Inflatable ring main unit, it comprises a cabinet, multiple module is provided with in this cabinet, on-load switch module respectively, the cable connection module of the cutter not with ground be electrically connected with on-load switch module, on-load switch fuse combined electric apparatus module, breaker module, on-load switch contact module, circuit breaker contact module, high pressure measurement module, isolating switch module, described cabinet inside is provided with four chambers, bus-bar room respectively, circuit breaker cart room, cable vault, relay control room, cabinet top place is provided with cabinet top solid isolated bus, described cabinet top solid isolated bus arranges electrical connection port, described branch joint is provided with three, connect three bus casings respectively, main bus bar is had in each bus casing inner sleeve, article three, the branch joint other end is connected on static contact head device, bus-bar room lower end is provided with current transformer, described current transformer bottom separates two interfaces, one of them interface stube cable, another interface connects earthed switch by sleeve pipe, described earthed switch connects lightning arrester by cable, and described static contact head device is fixed on the valve dividing plate of cabinet bosom, and its end is connected with heater through valve dividing plate, be connected with circuit breaker cart on the right side of described heater, described circuit breaker cart is connected on secondary plug by cable.
Further, described static contact head device outer setting has fixed contact box.
Further, described cable electrical connection earthing main bus, the end winding support of earthing main bus, lightning arrester is on base plate.
Further, described valve dividing plate left-hand face is fitted with dress what formula dividing plate.
Further, the top of described relay control room is provided with pressure relief device.
Further, top, described relay control room is also provided with and controls little bus-bar room.
Further, described circuit breaker cart is fixed on the withdrawable horizontal baffle of lower end.
Further, described withdrawable horizontal baffle is arranged on earthing switch operating mechanism.
Further, described earthing switch operating mechanism is placed in the top of cable vault.
Relative to prior art, the beneficial effects of the utility model are: compound inslation of the present utility model has on-load switch, circuit breaker and have the multiple operating functions such as manual, electronic, realize control in various degree, measurement and defencive function.Flexibly, user can configure control appliance Alternative devices according to different investment stage by stages in equipment combination, and upgrading ability is strong and reduce investment outlay.The operating mechanism of compound inslation on-load switch, circuit breaker is independently soon close and divide soon manual-operating mechanism and mechanically operated motor closes a floodgate the/combination of on/off operation mechanism.The electric energy-stored combined floodgate that directly releases energy of electric operation mechanism of load switch, therefore under any circumstance can keep the terseness equal with man-operating mechanism and reliability.Inflatable ring main unit of the present utility model is applied in 6 ~ 24kV distribution network, and this equipment is widely used in emanant, trunk line type and ring network power supply Switching Station, the controller switching equipments such as terminal power distribution station.Can be used as the ideal chose of the user such as downtown, residential quarters.The utility model ring main unit can carry out Installation and Debugging and maintenance from front, namely ensure that fail safe; Turn improve flexibility, volume is little, decreases floor space.
Accompanying drawing explanation
Fig. 1 is the utility model Inflatable ring main unit stereogram.
Fig. 2 is the utility model Inflatable ring main unit internal structure schematic diagram.
Mark in accompanying drawing: A-bus room, B circuit breaker cart room, C cable vault, D relay control room, 1 cabinet, 2 branch joints, 3 bus casings, 4 main bus bars, 5 static contact head devices, 6 fixed contact boxes, 7 current transformers, 8 earthed switches, 9 cables, 10 lightning arresters, 11 earthing main bus, 12 control little bus-bar room, 13 hydraulic means, 14 dress what formula dividing plates, 15 valve dividing plates, 16 secondary plugs, 17 circuit breaker carts, 18 heaters, 19 withdrawable horizontal baffles, 20 earthing switch operating mechanisms, 21 base plates.
Embodiment
Below in conjunction with drawings and Examples, the technical solution of the utility model is explained in detail.
Embodiment: please refer to accompanying drawing 1 ~ 2, one of the present utility model totally-enclosed all insulation compact Inflatable ring main unit, it comprises a cabinet 1, multiple module is provided with in this cabinet 1, on-load switch module respectively, the cable connection module of the cutter not with ground be electrically connected with on-load switch module, on-load switch fuse combined electric apparatus module, breaker module, on-load switch contact module, circuit breaker contact module, high pressure measurement module, isolating switch module, described cabinet inside is provided with four chambers, bus-bar room A respectively, circuit breaker cart room B, cable vault C, relay control room D, cabinet top place is provided with cabinet top solid isolated bus, described cabinet top solid isolated bus arranges electrical connection port, described branch joint 2 is provided with three, connect three bus casings 3 respectively, main bus bar 4 is had in each bus casing 3 inner sleeve, article three, branch joint 2 other end is connected on static contact head device 5, described static contact head device 5 outer setting has fixed contact box 6.Bus-bar room A lower end is provided with current transformer 7, described current transformer 7 bottom separates two interfaces, one of them interface stube cable 9, another interface connects earthed switch 8 by sleeve pipe, described earthed switch 8 connects lightning arrester 10 by cable, described static contact head device 5 is fixed on the valve dividing plate 15 of cabinet bosom, its end is connected with heater 18 through valve dividing plate 15, circuit breaker cart 17 is connected with on the right side of described heater 18, described circuit breaker cart 17 is fixed on the withdrawable horizontal baffle 19 of lower end, described circuit breaker cart 17 is connected on secondary plug 16 by cable, described cable 9 is electrically connected earthing main bus 11, earthing main bus 11, the end winding support of lightning arrester 10 is on base plate 21, described valve dividing plate 15 left-hand face is fitted with dress what formula dividing plate 14.The top of described relay control room D is provided with pressure relief device 13 and controls little bus-bar room 12, and described withdrawable horizontal baffle 19 is arranged on earthing switch operating mechanism 20.Described earthing switch operating mechanism 20 is placed in the top of cable vault C.
The utility model entirety can be extracted parts two large divisions out by cabinet and middle and be formed, the cabinet of ring main unit is divided into four individual cells, there is when circuit breaker chamber door is opened built on stilts line, cable incoming-outgoing wire and other function scheme, the power distribution equipment of various main junction scheme can be become after arrangement, combination.
Cabinet and the dividing plate of the utility model ring main unit are made up of quality steel plate, have very strong anti-oxidant, corrosion-resistant function, and rigidity and mechanical strength are than ordinary low-carbon steel plate hight.Pressure relief device is all equipped with in the top in three hyperbaric chambers.When there is internal fault, hyperbaric chamber internal gas pressure raises, and due to cabinet door positiver sealing, gases at high pressure will by pressure relief device pressure release.Adjacent switch cubicle is separated by respective side plate, still has air cushioning layer, can prevent switch cubicle from being run through fusing by fault electric arc after spelling cabinet.Relay control room D is assembled into individual compartment, separates with high-pressure area.Circuit breaker cart room B and cable vault C separates by dividing plate, even if circuit breaker cart removes (now valve can automatically close), also can prevent operator from touching live part in bus-bar room A and cable vault C.Unload fastening bolt and just can remove horizontal baffle, be convenient to the installation of cable seal terminal.
Handcart can adopt and manually move.Framework is assembled by alloy-steel plate, fills circuit breaker and other equipment above.The contact arm with spring contact system is contained on the pole of circuit breaker, plays electric anastomosis when handcart is inserted into run location.The signal of handcart between switch cubicle, protection and control line, connect with a control line plug.Handcart has just inserted switch cubicle and has just been fixed on isolated location, is also reliably connected to the grounding system of switch cubicle simultaneously.The position of handcart, sees by observation window or the handcart electric position indicating device be contained on low-pressure chamber panel.
The branch bar of rectangle directly by Bolt Connection on main bus bar, do not need any connection to press from both sides.All buses and branch bar all cover with heat-shrinkable T bush.Bus isolation between cabinet and cabinet is got up by casing board and sleeve pipe, and has supporting role.The switch cubicle large to electronic stress, this support of general needs.Current transformer and earthed switch are contained in rear portion, cable vault.Cable vault also can zinc oxide surge arresters.After cable chamber door is opened, enough space is had to enter installing cables in cabinet (at most can and connect 6) for workmen.Cover and adopt non-magnetic corrosion resistant plate at the base plate 21 at cable inlet place, crack, dismountable, be convenient to site operation.The reducing sealing ring perforate of passing through first and second cable in base plate should adapt with filled cable, in case toy enters.The secondary component of ring main unit is contained in low-pressure chamber and on door.Control line wire casing space is well-to-do, and has cover plate, and left side wire casing is used for introducing and drawing line between cabinet, and right side wire casing is used for laying inside switch cabinet line.Low-pressure chamber side plate there is control line to pass through hole, to control the connection of power supply.
The foregoing is only preferred implementation of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.

Claims (9)

1. a totally-enclosed all insulation compact Inflatable ring main unit, it comprises a cabinet (1), multiple module is provided with in this cabinet (1), on-load switch module respectively, the cable connection module of the cutter not with ground be electrically connected with on-load switch module, on-load switch fuse combined electric apparatus module, breaker module, on-load switch contact module, circuit breaker contact module, high pressure measurement module, isolating switch module, described cabinet inside is provided with four chambers, bus-bar room (A) respectively, circuit breaker cart room (B), cable vault (C), relay control room (D), it is characterized in that: cabinet top place is provided with cabinet top solid isolated bus, described cabinet top solid isolated bus arranges electrical connection port, branch joint (2) is provided with three, connect three bus casings (3) respectively, main bus bar (4) is had in each bus casing (3) inner sleeve, article three, branch joint (2) other end is connected on static contact head device (5), bus-bar room (A) lower end is provided with current transformer (7), described current transformer (7) bottom separates two interfaces, one of them interface stube cable (9), another interface connects earthed switch (8) by sleeve pipe, described earthed switch (8) connects lightning arrester (10) by cable, described static contact head device (5) is fixed on the valve dividing plate (15) of cabinet bosom, its end is connected with heater (18) through valve dividing plate (15), described heater (18) right side is connected with circuit breaker cart (17), described circuit breaker cart (17) is connected on secondary plug (16) by cable.
2. one according to claim 1 totally-enclosed all insulation compact Inflatable ring main unit, is characterized in that: described static contact head device (5) outer setting has fixed contact box (6).
3. one according to claim 1 totally-enclosed all insulation compact Inflatable ring main unit, it is characterized in that: described cable (9) electrical connection earthing main bus (11), the end winding support of earthing main bus (11), lightning arrester (10) is on base plate (21).
4. one according to claim 1 totally-enclosed all insulation compact Inflatable ring main unit, is characterized in that: described valve dividing plate (15) left-hand face is fitted with dress what formula dividing plate (14).
5. one according to claim 1 totally-enclosed all insulation compact Inflatable ring main unit, is characterized in that: the top of described relay control room (D) is provided with pressure relief device (13).
6. a kind of totally-enclosed all insulation compact Inflatable ring main unit according to claim 1 or 5, is characterized in that: described relay control room (D) top is also provided with and controls little bus-bar room (12).
7. one according to claim 1 totally-enclosed all insulation compact Inflatable ring main unit, is characterized in that: described circuit breaker cart (17) is fixed on the withdrawable horizontal baffle (19) of lower end.
8. one according to claim 7 totally-enclosed all insulation compact Inflatable ring main unit, is characterized in that: described withdrawable horizontal baffle (19) is arranged on earthing switch operating mechanism (20).
9. one according to claim 8 totally-enclosed all insulation compact Inflatable ring main unit, is characterized in that: described earthing switch operating mechanism (20) is placed in the top of cable vault (C).
CN201520279815.8U 2015-04-24 2015-04-24 A kind of totally-enclosed all insulation compact Inflatable ring main unit Expired - Fee Related CN204633201U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520279815.8U CN204633201U (en) 2015-04-24 2015-04-24 A kind of totally-enclosed all insulation compact Inflatable ring main unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520279815.8U CN204633201U (en) 2015-04-24 2015-04-24 A kind of totally-enclosed all insulation compact Inflatable ring main unit

Publications (1)

Publication Number Publication Date
CN204633201U true CN204633201U (en) 2015-09-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106099741A (en) * 2016-08-05 2016-11-09 太仓宏光自控电器设备有限公司 A kind of Cubicle Gas-Insulated Switchgear
CN106785981A (en) * 2017-01-04 2017-05-31 繁昌县易能科技有限责任公司 A kind of electric power incoming line cabinet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106099741A (en) * 2016-08-05 2016-11-09 太仓宏光自控电器设备有限公司 A kind of Cubicle Gas-Insulated Switchgear
CN106785981A (en) * 2017-01-04 2017-05-31 繁昌县易能科技有限责任公司 A kind of electric power incoming line cabinet

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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: 20150909

Termination date: 20200424

CF01 Termination of patent right due to non-payment of annual fee