CN104836141A - Movable layered switchgear - Google Patents
Movable layered switchgear Download PDFInfo
- Publication number
- CN104836141A CN104836141A CN201510261754.7A CN201510261754A CN104836141A CN 104836141 A CN104836141 A CN 104836141A CN 201510261754 A CN201510261754 A CN 201510261754A CN 104836141 A CN104836141 A CN 104836141A
- Authority
- CN
- China
- Prior art keywords
- short
- bus
- contact arm
- room
- circuiting device
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/28—Earthing arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a movable layered switchgear, which comprises a cabinet body shell, a busbar chamber, a short-circuiter handcart chamber and a cable chamber, wherein the cable chamber is internally provided with a grounding switch. The movable layered switchgear is characterized in that the busbar chamber is provided with three busbars which are coated by busbar sleeves respectively, the short-circuiter handcart is provided with a grounding rod, the grounding rod comprises a contact arm with conductivity, and the top end of the contact arm is provided with a moving contact which is used for being in short circuit with the three busbars; the rear end of the contact arm is connected to a lapping piece, a grounding wire, which is connected with the grounding switch in series, is arranged between the contact arm and the lapping piece, the rear end of the lapping piece is connected to an insulated operating rod, and the shell, the busbar chamber and the short-circuiter handcart chamber are provided with placement holes provided for the grounding rod to penetrate. According to the invention, defects of great occupation space and high manufacturing cost existing in the prior art are overcome, and the movable layered switchgear provided by the invention replaces a short-circuiter handcart with a small operating device.
Description
Technical field
The invention belongs to assembled electric equipment field, particularly relate to a kind of removable and with the switch cubicle of hierarchy.
Background technology
The Main Function of switch cubicle (switchgear) carries out generating electricity in electric power system, transmits electricity, in the process of distribution and electric energy conversion, carries out folding, control and protection power consumption equipment.Switch cubicle comprises cabinet shell, bus-bar room, short-circuiting device handcart room, cable vault, relay control room, and described bus-bar room is provided with three-phase bus, and short-circuiting device handcart room is provided with short-circuiting device handcart; Lightning arrester, cable and earthed switch are placed in cable vault.
Short-circuiting device handcart bends welding procedure and assembly by steel plate and forms, and bottom chassis car is equipped with four rollers, can move in the horizontal direction, and short-circuiting device handcart is also equipped with moving contact, guider, locking mechanism and handcart turnover hand-operated mechanism.When overhauling system or safeguard, by the guide rail in cabinet, short-circuiting device dolly is promoted to bus-bar room, require the moving contact on short-circuiting device handcart and three bus short joins in bus-bar room, its power supply of bus after short circuit is connected into earthed switch and the earth by moving contact, electricity remaining in such switch cubicle just imports the earth, thus ensure maintenance personal enter switch cubicle after safety.
Need certain distance (between bus, insulation distance and bus are to the insulation distance of cabinet) just can not interfere with each other and ensure electrical safety between bus due to switch cubicle, this often makes the bus-bar room volume of switch cubicle comparatively large, and the volume of the short-circuiting device handcart room contiguous with bus-bar room is just relatively little.The own limited space of switch cubicle sometimes, cannot place or operate short-circuiting device dolly, therefore very large inconvenience is brought to execute-in-place, although also have the space of placement or operational grounding dolly sometimes, but because every platform switch cubicle all will be equipped with a short-circuiting device dolly, the waste of space and cost of manufacture can be caused thus, therefore need a kind of compact manipulator that can substitute short-circuiting device dolly.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of portable floor switch cabinet, replaces short-circuiting device handcart by small-sized operating means, thus reduces occupation of land space and the cost of manufacture of switch cubicle.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
Portable floor switch cabinet, comprise cabinet shell, bus-bar room, short-circuiting device handcart room and cable vault, earthed switch is provided with in cable vault, wherein, described bus-bar room is provided with three buses wrapped up by bus casing respectively, short-circuiting device handcart room is provided with earth rod, and this earth rod comprises the contact arm with electric conductivity, and the top of described contact arm is provided with for the moving contact with three bus short joins; The rear end of described contact arm is connected with a bridge piece, an earth connection of connecting with earthed switch is provided with between contact arm with bridge piece, the rear end of described bridge piece is connected with an insulating bar, described shell, bus-bar room, short-circuiting device handcart room be provided with for described earth rod penetrate insert hole.
Further, described bus respectively draws a copper bar wire, and described moving contact is provided with the contact for being connected with described copper bar wire respectively.
Further, be provided with slidingtype dividing plate between described short-circuiting device handcart room and cable vault, described slidingtype dividing plate is provided with the open slot penetrated for earth connection.
Adopt portable floor switch cabinet switch cubicle of the present invention, there is following technique effect:
1, adopt bus casing parcel bus, reduce insulation distance and bus between bus and, to the insulation distance of cabinet shell, reduce the design size of switch cubicle;
2, the relatively simple earth rod of structure replaces short-circuiting device dolly, can be cost-saving; And earth rod penetrates pass by inserting hole, does not need the auxiliary equipment such as roller, guider, takes up room less.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, technical solution of the present invention is further illustrated:
Fig. 1 is the internal structure schematic diagram of the portable floor switch cabinet of the present invention;
Fig. 2 is the structure for amplifying schematic diagram of earth rod in the portable floor switch cabinet of the present invention.
Embodiment
As shown in Figure 1, the portable floor switch cabinet of the present invention, comprise cabinet shell 17, bus-bar room 1, short-circuiting device handcart room 2, cable vault 3, relay control room 4, described bus-bar room 1 is provided with the bus 9 wrapped up by bus casing 15, lightning arrester 6, cable 7 and earthed switch 8 are placed in cable vault 3, and current transformer 5 is positioned on cable vault 3 rear wall; Cable vault's cabinet door at the back side, cable vault 3 is rotary shaft door; The top of short-circuiting device handcart room 2, bus-bar room 1 and cable vault 3 is provided with pressure relief device 14; The below of short-circuiting device handcart room 2 is provided with withdrawable horizontal baffle 12 and earthing switch operating mechanism 13; Dividing plate 11 is provided with between bus-bar room 1 and short-circuiting device handcart room 2.
Bus 9 cover has the bus casing 15 of thermal shrinkage type, and lap-joint adopts fire-retardant T-shaped insulating cover, ensure that reliable compound inslation.The secondary device of relaying protection element, instrument, electrification display and particular/special requirement can be installed in electrical instrumentation room 4.Pressure relief device 14 is equipped with above short-circuiting device handcart room 2, bus-bar room 1 and cable vault 3, when there is internal fault in bus 9, with the appearance of electric arc, inside switch cabinet pressure sharply raises, the earth pressure release metallic plate (i.e. pressure relief device 14) of top installing will be automatically switched on, vented gasses with release pressure, to guarantee the safety of operating personnel and switch cubicle.
As shown in Figure 2, earth rod comprises the contact arm 21 with electric conductivity, and the top of contact arm 21 is provided with a Mume flower contact coordinated with fixed contact 22; The rear end of contact arm 21 is connected with a bridge piece 23, be provided with between contact arm 21 and bridge piece 23 earth cable and an earth cable mount arrange 24(for spacing to earth cable), the rear end of bridge piece 23 is connected with an insulating bar 25, insulating bar 25 is glass fiber winding pipe, glass fiber winding pipe is soaked by the non-twist synthetic glass fiber of alkali-free with after epoxy composite gum forming, through the insulated product of heating, solidification, have good electric property and mechanical performance, Jie consume low, indeformable, put the features such as little, resistance to chemical attack without layering, office.Dividing plate on described shell, bus-bar room, its wall of short-circuiting device handcart room or between them be provided with for described earth rod penetrate insert hole.
Also be provided with the inner cavity chamber 10 retrained earth cable in short-circuiting device handcart room 2, described earth cable is provided with the open slot penetrated for earth cable by inner cavity chamber 10 and horizontal baffle 12() be connected in cable vault 3, and be connected with earthed switch 8.
For a person skilled in the art, under the prerequisite not departing from structure of the present invention, can also make some distortion and improvement, these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (3)
1. portable floor switch cabinet, comprise cabinet shell, bus-bar room, short-circuiting device handcart room and cable vault, earthed switch is provided with in cable vault, it is characterized in that, described bus-bar room is provided with three buses wrapped up by bus casing respectively, short-circuiting device handcart room is provided with earth rod, and this earth rod comprises the contact arm with electric conductivity, and the top of described contact arm is provided with for the moving contact with three bus short joins; The rear end of described contact arm is connected with a bridge piece, an earth connection of connecting with earthed switch is provided with between contact arm with bridge piece, the rear end of described bridge piece is connected with an insulating bar, described shell, bus-bar room, short-circuiting device handcart room be provided with for described earth rod penetrate insert hole.
2. portable floor switch cabinet as claimed in claim 1, is characterized in that, described bus respectively draws a copper bar wire, and described moving contact is provided with the contact for being connected with described copper bar wire respectively.
3. portable floor switch cabinet as claimed in claim 1, is characterized in that, is provided with slidingtype dividing plate between described short-circuiting device handcart room and cable vault, and described slidingtype dividing plate is provided with the open slot penetrated for earth connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261754.7A CN104836141A (en) | 2015-05-21 | 2015-05-21 | Movable layered switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261754.7A CN104836141A (en) | 2015-05-21 | 2015-05-21 | Movable layered switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104836141A true CN104836141A (en) | 2015-08-12 |
Family
ID=53813850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510261754.7A Pending CN104836141A (en) | 2015-05-21 | 2015-05-21 | Movable layered switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104836141A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1432090A1 (en) * | 2002-12-16 | 2004-06-23 | Siemens Aktiengesellschaft | Device for grounding a plug-in unit |
| CN202524003U (en) * | 2012-03-28 | 2012-11-07 | 江苏昆山通用电气有限公司 | High-voltage switchgear |
| CN203339557U (en) * | 2013-06-25 | 2013-12-11 | 江苏大全长江电器股份有限公司 | Handcart type switch cabinet grounding rod |
| CN203800188U (en) * | 2014-05-14 | 2014-08-27 | 国家电网公司 | 10kV handcart switch cabinet bus static contact special-purpose grounding device |
| CN205178358U (en) * | 2015-05-21 | 2016-04-20 | 遵义长征电器防爆设备有限责任公司 | Portable layering cubical switchboard |
-
2015
- 2015-05-21 CN CN201510261754.7A patent/CN104836141A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1432090A1 (en) * | 2002-12-16 | 2004-06-23 | Siemens Aktiengesellschaft | Device for grounding a plug-in unit |
| CN202524003U (en) * | 2012-03-28 | 2012-11-07 | 江苏昆山通用电气有限公司 | High-voltage switchgear |
| CN203339557U (en) * | 2013-06-25 | 2013-12-11 | 江苏大全长江电器股份有限公司 | Handcart type switch cabinet grounding rod |
| CN203800188U (en) * | 2014-05-14 | 2014-08-27 | 国家电网公司 | 10kV handcart switch cabinet bus static contact special-purpose grounding device |
| CN205178358U (en) * | 2015-05-21 | 2016-04-20 | 遵义长征电器防爆设备有限责任公司 | Portable layering cubical switchboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150812 |
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| RJ01 | Rejection of invention patent application after publication |