CN204243584U - A kind of switch cubicle for middle pressure Dual-power automatic switching - Google Patents

A kind of switch cubicle for middle pressure Dual-power automatic switching Download PDF

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Publication number
CN204243584U
CN204243584U CN201420742317.8U CN201420742317U CN204243584U CN 204243584 U CN204243584 U CN 204243584U CN 201420742317 U CN201420742317 U CN 201420742317U CN 204243584 U CN204243584 U CN 204243584U
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China
Prior art keywords
circuit breaker
breaker
switch cubicle
chamber
automatic switching
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Active
Application number
CN201420742317.8U
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Chinese (zh)
Inventor
张开连
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Schneider Electric Huadian Switchgear Xiamen Co Ltd
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Schneider Electric Huadian Switchgear Xiamen Co Ltd
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Priority to CN201420742317.8U priority Critical patent/CN204243584U/en
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Abstract

The utility model discloses a kind of switch cubicle for middle pressure Dual-power automatic switching, it comprises a breaker chamber, two cable vaults, one bus-bar room and two low-pressure chambers, this two cable vault connects civil power and generator power supply respectively, this breaker chamber is equiped with the first circuit breaker and the second circuit breaker being connected generator power supply that connect civil power, corresponding this first circuit breaker of control connection of this two low-pressure chamber and the second circuit breaker, this bus-bar room correspondence connects this first circuit breaker and the second circuit breaker, two incoming line switch cabinets being respectively equiped with the first circuit breaker or the second circuit breaker in prior art are respectively merged into one, and be provided with mechanical interlocking and electrical interlock, dual interlock between this first circuit breaker and second circuit breaker, guarantee to only have the first circuit breaker or the second breaker closing, avoid the risk of the reverse power transmission of generator.

Description

A kind of switch cubicle for middle pressure Dual-power automatic switching
Technical field
The utility model relates to a kind of switch cubicle for middle pressure Dual-power automatic switching.
Background technology
Can not the user of interruption of power supply at some, such as data center, be designed to dual power supply, 12kV needs power supply entering line, come from electrical network, another road is from emergency generator, high to the reliability requirement of power supply, this electrical network inlet wire and generator power supply inlet wire introduce power supply by the incoming line switch cabinet that two are equipped with lead-in circuit breaker at present, electrical interlock is only had, if electrical interlock lost efficacy, when two lead-in circuit breakers all close a floodgate between these two incoming line switch cabinets, from generator side to grid transmission, cause electric network fault.
Utility model content
The utility model provides a kind of switch cubicle for middle pressure Dual-power automatic switching, which overcomes the incoming line switch cabinet fail safe described in background technology, shortcoming that reliability is not high.
The technical scheme adopted that the utility model solves its technical problem is:
A kind of switch cubicle for middle pressure Dual-power automatic switching, comprise a breaker chamber, two cable vaults, a bus-bar room and two low-pressure chambers, this two cable vault connects civil power and generator power supply respectively, this breaker chamber is equiped with the first circuit breaker and the second circuit breaker being connected generator power supply that connect civil power, corresponding this first circuit breaker of control connection of this two low-pressure chamber and the second circuit breaker, this bus-bar room correspondence connects this first circuit breaker and the second circuit breaker.
Among one embodiment: this first circuit breaker and the second circuit breaker are placed on a handcart abreast, and be provided with mechanical interlocking and electrical interlock between this first circuit breaker and second circuit breaker.
Among one embodiment: this breaker chamber, cable vault and bus-bar room are respectively equipped with pressure release passage.
Among one embodiment: the fixed contact in this breaker chamber with two kinds of different lengths.
Among one embodiment: be provided with the guider guiding the turnover of this circuit breaker cart in this breaker chamber.
Among one embodiment: this guider comprises an axis of guide and a positioning sleeve, this axis of guide is installed in this breaker chamber, and this positioning sleeve is installed on this circuit breaker cart.
Among one embodiment: the profile of this switch cubicle can be mated with existing switch cubicle, to realize and cabinet use.
The technical program is compared with background technology, and its tool has the following advantages:
1, a kind of switch cubicle for middle pressure Dual-power automatic switching comprises a breaker chamber, two cable vaults, a bus-bar room and two low-pressure chambers, this two cable vault connects civil power and generator power supply respectively, this breaker chamber is equiped with the first circuit breaker and the second circuit breaker being connected generator power supply that connect civil power, corresponding this first circuit breaker of control connection of this two low-pressure chamber and the second circuit breaker, this bus-bar room correspondence connects this first circuit breaker and the second circuit breaker.Two incoming line switch cabinets being respectively equiped with the first circuit breaker or the second circuit breaker in prior art are respectively merged into the incoming line switch cabinet that has the first circuit breaker and the second circuit breaker.
2, this first circuit breaker and the second circuit breaker are placed on a handcart abreast, and be provided with mechanical interlocking and electrical interlock between this first circuit breaker and second circuit breaker, dual interlock, guarantees to only have the first circuit breaker or the second breaker closing, avoids the risk of the reverse power transmission of generator.
3, there is in this switch cubicle the fixed contact of two kinds of different lengths, make the moving contact on circuit breaker cart can form successively occlusal contact condition with this fixed contact, minimizing moving contact is engaged resistance with fixed contact, reduces the boost torque of handcart, guarantees that handcart shakes and meet the demands into power.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 depicts end view of the present utility model.
Fig. 2 depicts one of overall structure schematic perspective view of the present utility model.
Fig. 3 depicts overall structure schematic perspective view two of the present utility model.
Fig. 4 depicts one of circuit breaker cart structural upright schematic diagram of the present utility model.
Fig. 5 depicts circuit breaker cart structural upright schematic diagram two of the present utility model
Fig. 6 depicts the primary side line map in a preferred embodiment of the present utility model.
Embodiment
Please refer to Fig. 1 to Fig. 4, a kind of switch cubicle for middle pressure Dual-power automatic switching, this switch cubicle comprises breaker chamber 100, two cable vault 200, bus-bar room 300 and two low-pressure chambers 400, this two cable vault 200 connects civil power and generator power supply respectively, this breaker chamber 100 is equiped with the first circuit breaker 10 and the second circuit breaker 20 being connected generator power supply that connect civil power, the corresponding control connection of this two low-pressure chamber 400 this first circuit breaker 10 and second circuit breaker 20, this bus-bar room 300 correspondence connects this first circuit breaker 10 and second circuit breaker 20.
This first circuit breaker 10 and the second circuit breaker 20 are arranged on a handcart abreast, two circuit breakers can be installed in this breaker chamber 100 simultaneously and to advance in this breaker of switch cabinet room and release.Be provided with mechanical interlocking and electrical interlock, dual interlock between this first circuit breaker 10 and second circuit breaker 20, guarantee there is a breaker closing, avoid the risk of the reverse power transmission of generator power supply.
In the present embodiment, please refer to Fig. 5, mechanical interlock mechanism between this first circuit breaker and second circuit breaker comprises interlocking post 11, pin 12, first elastic component (not shown) and locating collar seat 13, this interlocking post 11 offers a long lumbar hole (not shown), this locating collar seat 13 offers a pin-and-hole, this pin 12 makes axial relative sliding along this interlocking post 11 of this interlocking post 11 and this locating collar seat 13 through this pin-and-hole and long lumbar hole, but this interlocking post 11 can not rotate, this interlocking post 11 branches out the first interlocking one on the other and divides post 111 and the second interlocking point post 112 to its axial both sides, the lower end of this interlocking post 11 connects this first elastic component, this first mechanical interlock mechanism also comprises the first rotating shaft 14, first cam 15, second rotating shaft 16 and the second cam 17, this first rotating shaft 14 is rotationally connected the operation axis of the first circuit breaker 10, this first cam 15 is installed in this first rotating shaft 14, the outer surface of revolution of this first cam 15 is provided with the first groove, when this first circuit breaker 10 is in gate-dividing state, the opening surface of this first groove is to this first interlocking point post 111 and this first interlocking divides post 111 to be positioned at the below of this first cam 15, this second rotating shaft 16 is rotationally connected the operation axis of the second circuit breaker 20, this second cam 17 is installed on this second main shaft 16, the outer surface of revolution of this second cam 17 is provided with the second groove, when this second circuit breaker 20 is in gate-dividing state, the opening surface of this second groove is to this second interlocking point post 112 and this second interlocking divides post 112 to be positioned at the top of this second cam 17.
Mechanical interlocking implementation status between first circuit breaker and the second circuit breaker is: the first circuit breaker 10 and the second circuit breaker 20 are all in gate-dividing state, if the first circuit breaker 10 closes a floodgate, its operation axis rotates, the first rotating shaft 14 is driven to rotate, thus drive the first cam 15 be installed in this first rotating shaft 14 to rotate, first of this first cam 15 pressure interlocking post 11 is interlocked to divide post 111 and drive this second interlocking point post 112 to press down and is dropped in the second groove of this second cam 17, meanwhile be connected to the first elastic component compressed energy-storage of this interlocking post 11 lower end and the cylindrical contact of the first cam 15 on this first interlocking point post 111, make the operation axis of the second circuit breaker 20 can not rotate (because interlocking post can only slide axially along it, can not rotate), namely the second circuit breaker 20 can not close a floodgate.When this first circuit breaker 10 separating brake, when this first cam 15 returns back to this first groove surface to this first interlocking point post 111, this first elastic component release can, the lifting of interlocking post 11, the second groove deviate from by a second interlocking point post 112, now allows this second circuit breaker 20 to close a floodgate.If the second breaker closing, its operation axis rotates, the second rotating shaft 16 is driven to rotate, thus drive the second cam 17 be installed in this second rotating shaft 16 to rotate, this second cam 17 upwards lift interlocking post 11 the second interlocking point post 112 and drive this first interlocking point post 111 to rise and to fall in the first groove of this first cam 15 and the cylindrical contact of the second cam 17 on this second interlocking point post 112, the operation axis of the first circuit breaker 10 can not be rotated, and namely the first circuit breaker 10 can not close a floodgate.When this second circuit breaker 20 separating brake, when the second cam 17 returns back to this second groove surface to this second interlocking point post 112, this interlocking post 11 falls after rise under gravity, and the first groove deviate from by this first interlocking point post 111, now allows the first circuit breaker 10 to close a floodgate.So, the first circuit breaker 10 is realized by this first mechanical interlock mechanism and the second circuit breaker 20 can only have a combined floodgate.In one preferred embodiment, have the mechanical interlocking between this first circuit breaker and second circuit breaker 12kV duplicate supply switch withdraw-type switch cabinet in the data heart transformer station use primary side circuit as shown in Figure 6.
Electrical interlock unit is that the auxiliary switch contact of this first circuit breaker and the second circuit breaker is to the mutual exclusive circuit structure each other between shutting-brake control loop; Namely, when this first breaker closing, the shutting-brake control loop of cut-out second circuit breaker makes this second circuit breaker not close a floodgate by the auxiliary switch contact of this first circuit breaker, in like manner, when this second breaker closing, the shutting-brake control loop of cut-out first circuit breaker makes this first circuit breaker not close a floodgate by the auxiliary switch contact of this second circuit breaker.
This breaker chamber 100, cable vault 200 and bus-bar room 300 are respectively equipped with pressure release passage, to meet the requirement of interior arcing fault, guarantee that the high temperature and high pressure gas in cabinet can be discharged effectively and timely when there is primary circuit short trouble.There is in this breaker chamber 100 fixed contact 101 of two kinds of different lengths, in the present embodiment, there are in this breaker chamber 100 12 fixed contacts 101, in these 12 fixed contacts 101 six are designed to same length and are first engaged with moving contact 102 in handcart progradation, all the other six are designed to the same length of another size and continue to be engaged with moving contact 102 after in progradation at handcart, such design can reduce resistance when circuit breaker cart moving contact 102 is engaged with switch cubicle fixed contact 101, reduce the boost torque of handcart, guarantee that handcart shakes and meet occlusion requirement into power.
The guider 103 guiding the turnover of this circuit breaker cart is provided with in this breaker chamber 100.This guider 103 comprises the axis of guide 1031 and a positioning sleeve 1032, this axis of guide 1031 is installed in this breaker chamber 100, this positioning sleeve 1032 is installed on this circuit breaker cart, when this circuit breaker cart is by push-on switch cabinet, this positioning sleeve 1032 alignment sleeve is connected on this axis of guide 1031, makes this circuit breaker cart under the guide effect of this axis of guide 1031, steadily can advance release.
The profile of this switch cubicle can be mated with existing switch cubicle (can be consistent with existing PIX cabinet, outgoing line cabinet, mother cabinet profile), realizes ideally and cabinet uses.
The above, be only the utility model preferred embodiment, therefore the scope that the utility model implements can not be limited according to this, the equivalence namely done according to the utility model the scope of the claims and description change with modify, all should still belong in scope that the utility model contains.

Claims (7)

1. the switch cubicle for middle pressure Dual-power automatic switching, it is characterized in that: comprise a breaker chamber, two cable vaults, a bus-bar room and two low-pressure chambers, this two cable vault connects civil power and generator power supply respectively, this breaker chamber is equiped with the first circuit breaker and the second circuit breaker being connected generator power supply that connect civil power, corresponding this first circuit breaker of control connection of this two low-pressure chamber and the second circuit breaker, this bus-bar room correspondence connects this first circuit breaker and the second circuit breaker.
2. a kind of switch cubicle for middle pressure Dual-power automatic switching according to claim 1, it is characterized in that: this first circuit breaker and the second circuit breaker are placed on a handcart abreast, and be provided with mechanical interlocking and electrical interlock between this first circuit breaker and second circuit breaker.
3. a kind of switch cubicle for middle pressure Dual-power automatic switching according to claim 1, is characterized in that: this breaker chamber, cable vault and bus-bar room are respectively equipped with pressure release passage.
4. a kind of switch cubicle for middle pressure Dual-power automatic switching according to claim 1, is characterized in that: the fixed contact in this breaker chamber with two kinds of different lengths.
5. a kind of switch cubicle for middle pressure Dual-power automatic switching according to claim 1, is characterized in that: be provided with the guider guiding the turnover of this circuit breaker cart in this breaker chamber.
6. a kind of switch cubicle for middle pressure Dual-power automatic switching according to claim 5, it is characterized in that: this guider comprises an axis of guide and a positioning sleeve, this axis of guide is installed in this breaker chamber, and this positioning sleeve is installed on this circuit breaker cart.
7. a kind of switch cubicle for middle pressure Dual-power automatic switching according to claim 1, is characterized in that: the profile of this switch cubicle can be mated with existing switch cubicle, to realize and cabinet use.
CN201420742317.8U 2014-12-01 2014-12-01 A kind of switch cubicle for middle pressure Dual-power automatic switching Active CN204243584U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420742317.8U CN204243584U (en) 2014-12-01 2014-12-01 A kind of switch cubicle for middle pressure Dual-power automatic switching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420742317.8U CN204243584U (en) 2014-12-01 2014-12-01 A kind of switch cubicle for middle pressure Dual-power automatic switching

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Publication Number Publication Date
CN204243584U true CN204243584U (en) 2015-04-01

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106532545A (en) * 2017-01-12 2017-03-22 天津市先智电气设备有限公司 Vertical lifting-type high-security double-power supply device
CN106654959A (en) * 2017-01-12 2017-05-10 天津市先智电气设备有限公司 Lifting linkage type valve device and control method
CN106684746A (en) * 2017-01-12 2017-05-17 天津市先智电气设备有限公司 High-secure and dual-power supply device
CN106786102A (en) * 2017-01-12 2017-05-31 天津市先智电气设备有限公司 Vertical lift type high safety type dual power supply device and control method
CN106786103A (en) * 2017-01-12 2017-05-31 天津市先智电气设备有限公司 Vertical lift type monolithic devices dual power supply device
CN107046250A (en) * 2017-01-12 2017-08-15 天津市先智电气设备有限公司 Vertical lift type high safety type dual power supply device and control method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106532545A (en) * 2017-01-12 2017-03-22 天津市先智电气设备有限公司 Vertical lifting-type high-security double-power supply device
CN106654959A (en) * 2017-01-12 2017-05-10 天津市先智电气设备有限公司 Lifting linkage type valve device and control method
CN106684746A (en) * 2017-01-12 2017-05-17 天津市先智电气设备有限公司 High-secure and dual-power supply device
CN106786102A (en) * 2017-01-12 2017-05-31 天津市先智电气设备有限公司 Vertical lift type high safety type dual power supply device and control method
CN106786103A (en) * 2017-01-12 2017-05-31 天津市先智电气设备有限公司 Vertical lift type monolithic devices dual power supply device
CN107046250A (en) * 2017-01-12 2017-08-15 天津市先智电气设备有限公司 Vertical lift type high safety type dual power supply device and control method
CN106684746B (en) * 2017-01-12 2019-05-21 天津市先智电气设备有限公司 Dual power supply device
CN106786103B (en) * 2017-01-12 2019-05-21 天津市先智电气设备有限公司 Vertical lift type monolithic devices dual power supply device
CN106786102B (en) * 2017-01-12 2019-05-21 天津市先智电气设备有限公司 Vertical lift type dual power supply device and control method
CN106532545B (en) * 2017-01-12 2019-05-21 天津市先智电气设备有限公司 Vertical lift type dual power supply device
CN106654959B (en) * 2017-01-12 2019-05-31 天津市先智电气设备有限公司 Go up and down coordinated type valve arrangement and control method

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