CN204103336U - A kind of box fixed indoor ac metal closing switch gear - Google Patents

A kind of box fixed indoor ac metal closing switch gear Download PDF

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Publication number
CN204103336U
CN204103336U CN201420108954.XU CN201420108954U CN204103336U CN 204103336 U CN204103336 U CN 204103336U CN 201420108954 U CN201420108954 U CN 201420108954U CN 204103336 U CN204103336 U CN 204103336U
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China
Prior art keywords
switch
fixed mount
static contact
load switch
metal closing
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CN201420108954.XU
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Chinese (zh)
Inventor
马国康
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NINGBO NAIJILIKE ELECTRIC TECHNOLOGY Co Ltd
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NINGBO NAIJILIKE ELECTRIC TECHNOLOGY Co Ltd
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Priority to CN201420108954.XU priority Critical patent/CN204103336U/en
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Abstract

The utility model discloses a kind of box fixed indoor ac metal closing switch gear; comprise bus-bar room, three-stations load switch room, cable vault, control room; dual arrangement can be formed back-to-back or install by wall; both fail safe and the flexibility of switchgear had been improve; additionally reduce floor space; the ring network power supply or the biradial that are mainly used in electric power system are powered; also can be used for terminal to power as the control of electric energy and the protective device of power consumption equipment, be also applicable to load box-type substation.

Description

A kind of box fixed indoor ac metal closing switch gear
Technical field
The utility model relates to switchgear, particularly relates to a kind of box fixed indoor ac metal closing switch gear.
Background technology
Box fixing ac metal closing switch gear is used in 12KV three-phase alternating current Force system, for accepting and distributing electric energy and control circuit, protect and supervise.Its cabinet inner route clapboard divides and is separated with breaker chamber, cable vault, bus-bar room, intelligent instrument room, main switch room, and its intelligent instrument indoor are provided with the use that intelligent controlling device can realize intelligentized control method to cabinet, protection and detection.Traditional switch cubicle is when producing often by same for total production, and dismounting inconvenience, needs when one of them ECU (Electrical Control Unit) breaks down whole dismounting just can overhaul, waste time and energy.And the door of switch cubicle adopts bolt fastening structure, switch is inconvenient.But existing switchgear still also needs manual inspection, makes regular check on, once unusual condition or stolen because nobody keeps an eye at any time appears in switchgear, fail Timeliness coverage, will great economic loss be brought.Main employing gas-filling cabinet ring network power supply pattern in current urban electricity supply network, ring network power supply pattern can improve the reliability of power supply, and user can obtain power supply from ring main unit ring-main unit end, the power failure area of minimizing accident; Inflating switch cabinet is exactly the medium-voltage equipment for ring network power supply, and indoor, the outdoor power supply designed in present most of urban electricity supply network is due to the nervous reason of land used, and designing requirement is miniaturized, lightness development, and requires that the power distribution cabinet of design is non-maintaining.But current three-stations load switch complex structure, floor space are large, and manufacturing cost is high, affects the quality of product.
Therefore, those skilled in the art is devoted to develop a kind of armoured removable type alternating.
Utility model content
Because the above-mentioned defect of prior art, technical problem to be solved in the utility model there is provided the high box fixed indoor ac metal closing switch gear of a kind of security performance.
For achieving the above object, the utility model provides a kind of box fixed indoor ac metal closing switch gear, comprises three-stations load switch, it is characterized in that: described three-stations load switch comprises on-load switch, isolating switch, earthed switch and housing; Described on-load switch comprises upper static contact fixed mount, upper static contact arc-extinguish chamber fixed mount, upper static contact arc-extinguish chamber, described upper static contact arc-extinguish chamber is arranged on described arc-extinguish chamber fixed mount, and described upper static contact arc-extinguish chamber fixed mount is connected with described upper static contact fixed mount; Described isolating switch comprises lower fixed contact fixed mount, contiguous block, connecting rod, axle pivoted arm, main shaft, described axle pivoted arm one end is connected with described connecting rod, the described rotating shaft arm other end is connected with described contiguous block, described connecting rod is arranged on described main shaft, and described contiguous block is arranged on described lower fixed contact fixed mount; Described earthed switch comprises grounding copper bar and grounding contact, and described grounding copper bar is connected with described housing, and described grounding contact is arranged on described grounding copper bar top.
Further, described housing is spherical, inner hollow.
Further, described on-load switch is arranged on described case top.
Further, described isolating switch is arranged on the right side of described housing bottom.
Further, described earthed switch is arranged on the left of described housing bottom.
In better embodiment of the present utility model, the three-stations load switch of said structure adopts sulfur hexafluoride gas arc extinguishing, and contact disconnects and produces electric arc instantaneously, and the arc-chute on every phase contact elongates cooling electric arc, extinguishes to during current over-zero.Distance between dynamic and static contact is enough to bear restoring over-voltage.Conducting system is simple and reliable, and contact abrasion is few, and electrical endurance is long, cut-offs parts and avoids safeguarding, handling safety.Seal case has blowout disk, meets " pressure system requirement ", and have release of pressure row ease function, when producing fault, gas directly sprays to rear portion, avoids spraying forward or other phenomenons.
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the structural representation of the box fixed indoor ac metal closing switch gear of a preferred embodiment of the present utility model.
Fig. 2 is the structural representation in the three-stations load switch cross section of a preferred embodiment of Fig. 1.
1-bus-bar room; 2-three-stations load switch room; 3-cable vault; 4-control room; 5-lifting bolt; 6-dust cover; 7-pressure relief device; 8-back door; 9-three-stations load switch; 10-current transformer; Earthed switch under 11-; 12-lightning arrester; 13-on-load switch; 14-isolating switch; 15-earthed switch; 16-upper static contact fixed mount; 17-upper static contact arc-extinguish chamber fixed mount; 18-upper static contact arc-extinguish chamber; Fixed contact fixed mount under 19-; 20-contiguous block; 21-connecting rod; 22-axle pivoted arm; 23-main shaft; 24-grounding copper bar; 25-grounding contact.
Embodiment
As shown in the figure, a kind of box fixed indoor ac metal closing switch gear as shown in Figure 1, comprise bus, three-stations load switch, cable, instrument and cabinet, cabinet comprises bus-bar room 1, three-stations load switch room 2, cable vault 3, control room 4, lifting bolt 5, dust cover 6, pressure relief device 7, back door 8, bus-bar room 1, three-stations load switch room 2, steel plate is connected with between cable vault 3 and control room 4, bus-bar room 1, three-stations load switch room 2, cable vault 3, control room 4 is equipped with door, door is provided with sealing ring can room door termination, bus-bar room 1, three-stations load switch room 2, between cable vault 3 and control room 4, connection steel plate is separated, bus-bar room 1 is positioned at the top of cabinet, three-stations load switch room 2 is positioned at the bottom of bus-bar room 1, cable vault 3 is positioned at the bottom of cabinet, control room 4 is positioned at the front of bus-bar room 1, bus-bar room 1 top is provided with dust cover 6 and pressure relief device 7, cabinet end face is provided with multiple lifting bolt 5.The shell of cabinet selects import aluminizing zinc sheet metal, through machine tooling, and takes multiple seaming operation.Whole cabinet has high and the very strong anticorrosive and antioxygenic property of precision, and owing to adopting multiple seaming operation, connection steel plate is separated between each room, trouble location can be avoided to have influence on and to face room, compared with the cabinet of other same categories of device, overall weight is light, mechanical strength is high, good looking appearance, and cabinet adopts modular construction, is formed by connecting with the bolt of blind nut and high strength, it is processing cycle time, component universality is strong, and floor space is few, is convenient to tissue and produces.
Bus-bar room 1 is arranged in the top of cabinet, and in bus-bar room, main bus bar, point bus and vertical bus link together, and run through whole row switch cabinet, main bus bar is horizontal distribution, can conveniently expand.
A three-stations load switch 9 is provided with in on-load switch room 2, the shell of three-stations load switch 9 is that poured with epoxy resin forms, inside fill sulfur hexafluoride gas as arc extinguishing and dielectric, be provided with two transparent hot-forming plastic end covers at operating axis exit, can contact state be observed through it.Three-stations load switch room 2 can require according to user the gas density device installing sulfur hexafluoride gas density meter or band alarm actuating contact.Three-stations load switch 9 integrates on-load switch 13, isolating switch 14, earthed switch 15, is sealed in an insulation box being full of sulfur hexafluoride gas, voltage stabilizing, load " confining pressure system ".
Cable vault 3 is mainly used in cable and connects, and makes single-core cable that the simplest unshielded cable head can be adopted to connect, and the elements such as current transformer 10, lower earthed switch 11, lightning arrester 12 can also be installed in abundant space simultaneously.By standard design, front portion, cable vault 3 is provided with door, and 3, cable vault is provided with observation window and safety interlock.Cable vault 3 base plate is joined seal cover and is with the cable clip that the size of support is suitable.The frame in front of the door of cable vault's base plate can be pulled down, and facilitates cable to install.
Three-stations load switch 9 integrates on-load switch 13, isolating switch 14, earthed switch 15 as shown in Figure 2.On-load switch 13 comprises upper static contact fixed mount 16, upper static contact arc-extinguish chamber fixed mount 17, upper static contact arc-extinguish chamber 18, and upper static contact arc-extinguish chamber 18 is arranged on arc-extinguish chamber fixed mount 17, and upper static contact arc-extinguish chamber fixed mount 17 is connected with upper static contact fixed mount 16; Isolating switch comprises lower fixed contact fixed mount 19, contiguous block 20, connecting rod 21, axle pivoted arm 22, main shaft 23, axle pivoted arm 22 one end is connected with connecting rod 21, rotating shaft arm 22 other end is connected with contiguous block 20, and connecting rod 21 is arranged on main shaft 23, and contiguous block 20 is arranged on lower fixed contact fixed mount 19; Earthed switch 15 comprises grounding copper bar 24 and grounding contact 25, and grounding copper bar is connected with the shell of three-stations load switch 9, and grounding contact 25 is arranged on grounding copper bar 24 top.Three-stations load switch 9 has compact conformation, dependable performance, power supply safety, the advantage such as non-maintaining.
Three-stations load switch 9 cut-offs principle: three-stations load switch 9 adopts sulfur hexafluoride gas arc extinguishing, and contact disconnects and produces electric arc instantaneously, and the arc-chute on every phase contact elongates cooling electric arc, extinguishes to during current over-zero.Distance between dynamic and static contact is enough to bear restoring over-voltage.Conducting system is simple and reliable, and contact abrasion is few, and electrical endurance is long, cut-offs parts and avoids safeguarding, handling safety.Seal case has blowout disk, meets " pressure system requirement ", and have release of pressure row ease function, when producing fault, gas directly sprays to rear portion, avoids spraying forward or other phenomenons.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore; the technical scheme that any amendment that all technical staff are in the art done by logical analysis, reasoning, or a limited experiment on the basis of existing technology according to design of the present utility model, equivalent replacement, improvement etc. obtain, all should by the determined protection range of claims.

Claims (5)

1. a box fixed indoor ac metal closing switch gear, comprise three-stations load switch, it is characterized in that: described three-stations load switch (9) comprises on-load switch (13), isolating switch (14), earthed switch (15) and housing; Described on-load switch (13) comprises upper static contact fixed mount (16), upper static contact arc-extinguish chamber fixed mount (17), upper static contact arc-extinguish chamber (18), described upper static contact arc-extinguish chamber (18) is arranged on described arc-extinguish chamber fixed mount (17), and described upper static contact arc-extinguish chamber fixed mount (17) is connected with described upper static contact fixed mount (16); Described isolating switch comprises lower fixed contact fixed mount (19), contiguous block (20), connecting rod (21), axle pivoted arm (22), main shaft (23), described axle pivoted arm (22) one end is connected with described connecting rod (21), described rotating shaft arm (22) other end is connected with described contiguous block (20), described connecting rod (21) is arranged on described main shaft (23), and described contiguous block (20) is arranged on described lower fixed contact fixed mount (19); Described earthed switch (15) comprises grounding copper bar (24) and grounding contact (25), described grounding copper bar (24) is connected with described housing, and described grounding contact (25) is arranged on described grounding copper bar (24) top.
2. box fixed indoor ac metal closing switch gear as claimed in claim 1, is characterized in that: described housing is spherical, inner hollow.
3. box fixed indoor ac metal closing switch gear as claimed in claim 1, is characterized in that: described on-load switch (13) is arranged on described case top.
4. box fixed indoor ac metal closing switch gear as claimed in claim 1, is characterized in that: described isolating switch (14) is arranged on the right side of described housing bottom.
5. box fixed indoor ac metal closing switch gear as claimed in claim 1, is characterized in that: described earthed switch (15) is arranged on the left of described housing bottom.
CN201420108954.XU 2014-03-08 2014-03-08 A kind of box fixed indoor ac metal closing switch gear Active CN204103336U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420108954.XU CN204103336U (en) 2014-03-08 2014-03-08 A kind of box fixed indoor ac metal closing switch gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420108954.XU CN204103336U (en) 2014-03-08 2014-03-08 A kind of box fixed indoor ac metal closing switch gear

Publications (1)

Publication Number Publication Date
CN204103336U true CN204103336U (en) 2015-01-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105846337A (en) * 2016-05-18 2016-08-10 国家电网公司 Novel inflatable switch cabinet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105846337A (en) * 2016-05-18 2016-08-10 国家电网公司 Novel inflatable switch cabinet

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