CN102664354A - Multifunctional low voltage distribution cabinet - Google Patents
Multifunctional low voltage distribution cabinet Download PDFInfo
- Publication number
- CN102664354A CN102664354A CN2012101475916A CN201210147591A CN102664354A CN 102664354 A CN102664354 A CN 102664354A CN 2012101475916 A CN2012101475916 A CN 2012101475916A CN 201210147591 A CN201210147591 A CN 201210147591A CN 102664354 A CN102664354 A CN 102664354A
- Authority
- CN
- China
- Prior art keywords
- cabinet
- distribution cabinet
- reactive power
- chamber
- phase
- 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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- 230000001681 protective Effects 0.000 claims description 17
- 239000003990 capacitor Substances 0.000 claims description 16
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000000875 corresponding Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 8
- 230000004927 fusion Effects 0.000 abstract description 2
- 238000005192 partition Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000008425 Protein Deficiency Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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[Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound 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[Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 201000003450 persistent generalized lymphadenopathy Diseases 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention relates to a multifunctional low voltage distribution cabinet, comprising a cabinet body, a primary loop, a secondary control loop, an electricity metering and anti-stealing module and a kilowatt-hour meter which are mounted in the cabinet body, wherein the electricity metering and anti-stealing module is connected with a distribution cabinet door node; the kilowatt-hour meter is connected with a current transformer arranged in a circuit between a main circuit breaker and a horizontal row; and a transverse partition plate is arranged in the cabinet body and is used for dividing the cabinet body into upper, middle and lower chambers. After the structure is used, the multifunctional low voltage distribution cabinet integrates low voltage incoming, outgoing and reactive compensation into a whole, therefore, costs are reduced, space is reduced, and security coefficients are improved. All components inside the multifunctional low voltage distribution cabinet are connected by using a shortest distance and fewest electric connecting lines, mutual fusion of multiple national standard distribution equipment is realized, and the multifunctional low voltage distribution cabinet has the characteristics of simplicity in structure, convenience for use, safety and reliability in operation and the like.
Description
Technical field
The present invention relates to a kind of low-voltage distribution cabinet technical field, is a kind of multifunctional low-voltage switch cubicle of saving space, the combination of many standards and anti-electricity-theft characteristics that has specifically.
Background technology
Along with the develop rapidly of present rural economy, electricity for rural use is increasing, and power supply reliability requires increasingly high; Model low-voltage distribution cabinets such as original PGL, GGD can not satisfy the demand of rural power service, and not only the inner installation of power distribution cabinet components and parts are more single, and function is more backward; And the equipment of different cabinet types need be installed in the cabinet of different model; Wasting space, and the back influence of breaking down is wide, brings many inconvenience to the user.
Summary of the invention
To above-mentioned deficiency, the invention provides a kind of multifunctional low-voltage switch cubicle with multipurpose, many standards and characteristics such as anti-electricity-theft, it is not only easy for installation, and it is little to take up room.
For addressing the above problem, the present invention adopts following technical scheme: a kind of multifunctional low-voltage power distribution cabinet, comprise cabinet and the primary circuit and the secondary control loop that are installed in the cabinet, and it is characterized in that,
Said primary circuit comprises input isolating switch, main circuit breaker, output isolating switch, reactive power compensation control switch and reactive power compensator; Said low pressure inlet wire is connected to the fixed contact suitable for reading of input isolating switch; The end opening moving contact of said input isolating switch is connected with the fixed contact suitable for reading of main circuit breaker through connecting busbar; The end opening moving contact of said main circuit breaker is connected with the fixed contact suitable for reading of output isolating switch and the fixed contact suitable for reading of reactive power compensation control switch respectively through horizontally-arranged; The end opening moving contact of said output isolating switch is connected with load, and said reactive power compensator is connected with the end opening moving contact of reactive power compensation control switch;
Said two observing and controlling system loops comprise earth leakage protective loop, closing circuit, trip(ping) circuit and earth leakage protective device; The input of said earth leakage protective loop, closing circuit, trip(ping) circuit and earth leakage protective device respectively through fuse and A mutually power supply terminal be connected, output is connected with the end opening moving contact of main circuit breaker respectively.
Further; Said reactive power compensator comprises switching control switch, three-phase ac contactor, single phase alternating current (A.C.) contactor, three-phase compensation capacitors and single-phase compensation capacitors; Said switching control switch one end is connected with the reactive power compensation control switch; The other end is connected with an end of three-phase ac contactor or single phase alternating current (A.C.) contactor, and the other end of said three-phase ac contactor and single phase alternating current (A.C.) contactor is connected with single-phase compensation capacitors with the three-phase compensation capacitors respectively.
Further, also comprise the anti-electricity-theft module of metering, the anti-electricity-theft module of said metering is connected with said power distribution cabinet door node.
Further, also comprise kilowatt-hour meter, said kilowatt-hour meter be arranged on that the current transformer in the circuit is connected between main circuit breaker and the horizontally-arranged.
Further; Be provided with horizontal dividing plate in the said cabinet, said horizontal dividing plate is divided into three chambers in upper, middle and lower with cabinet, and said upper chamber is for reserving chamber; Be provided with in the said middle chamber the perpendicular dividing plate of cutting apart before and after it of putting; Said middle chamber first half is in order to install input isolating switch and main circuit breaker, and the middle chamber latter half is in order to install kilowatt-hour meter and the anti-electricity-theft module of metering, and said lower chambers is in order to install output isolating switch, reactive power compensator and earth leakage protective device.
Further; Each chamber of said cabinet is respectively arranged with corresponding cabinet door; Said upper chamber front cabinet door is provided with the nameplate sign; What said middle chamber front cabinet door was provided with main circuit breaker closes the branch rim brake, and said lower chambers front cabinet door is provided with the controller of ammeter, voltmeter, reactive power compensator and the control switch button and the indicator light of secondary control loop.
The invention has the beneficial effects as follows: after adopting said structure, this multifunctional low-voltage power distribution cabinet integrates low pressure inlet wire, outlet, reactive power compensation, has not only reduced cost, saved the space but also has improved coefficient of safety.The present invention is connected each components and parts of inside with the minimum electrical cable of use through beeline, has not only realized the mutual fusion of a plurality of national standard controller switching equipments, and has had characteristics such as simple in structure, easy to use, safe and reliable to operation.
Description of drawings
Fig. 1 is the front panel figure of switch cubicle of the present invention;
Fig. 2 is the front cut-away view of switch cubicle of the present invention;
Fig. 3 is the back side cut-away view of switch cubicle of the present invention;
Fig. 4 is the left pseudosection of switch cubicle of the present invention;
Fig. 5 is primary circuit of the present invention circuit theory diagrams;
Fig. 6 is secondary control loop circuit theory diagrams of the present invention;
Among the figure, the controller that closes branch rim brake, 16 ammeters, 17 voltmeters, 18 reactive power compensators, 19 control switch buttons and the indicator light of 1 cabinet, 11 upper chamber Qianmens, 12 middle chamber Qianmens, 13 lower chambers Qianmens, 14 nameplates sign, 15 main circuit breakers, 21 input isolating switches, 22 connect busbar, 23 main circuit breakers, 24 horizontally-arrangeds, 25 output isolating switches, 26 current transformers, 27 horizontal dividing plates, 31 kilowatt-hour meters, the anti-electricity-theft module of 32 meterings, 33 earth leakage protective devices, 34 reactive power compensation control switchs, 35 switching control switchs, 36 three-phase ac contactors, 37 three-phase compensation capacitors, 38 single phase alternating current (A.C.) contactors, 39 single-phase compensation capacitors, 41 cabinet brows, 42, components and parts mounting rail, 43 perpendicular dividing plate, 44 kilowatt-hour meter supports, 45 wire holes put.
Embodiment
Extremely shown in Figure 6 like Fig. 1; A kind of multifunctional low-voltage power distribution cabinet of the present invention; Comprise cabinet 1 and the anti-electricity-theft module 32 of primary circuit, secondary control loop, metering and the kilowatt-hour meter 31 that are installed in the cabinet, the anti-electricity-theft module 32 of said metering is connected with said power distribution cabinet door node.
Said primary circuit comprises input isolating switch 21, main circuit breaker 23, output isolating switch 25, reactive power compensation control switch 34 and reactive power compensator; Said low pressure inlet wire is connected to the fixed contact suitable for reading of input isolating switch 21; The end opening moving contact of said input isolating switch is connected with the fixed contact suitable for reading of main circuit breaker 23 through connecting busbar 22; The end opening moving contact of said main circuit breaker is connected with the fixed contact suitable for reading of output isolating switch 25 and the fixed contact suitable for reading of reactive power compensation control switch 34 respectively through horizontally-arranged 24; The end opening moving contact of said output isolating switch is connected with load, and said reactive power compensator is connected with the end opening moving contact of reactive power compensation control switch 34; Said kilowatt-hour meter 31 be arranged on that the current transformer 26 in the circuit is connected between main circuit breaker and the horizontally-arranged.Wherein, Said reactive power compensator comprises switching control switch 35, three-phase ac contactor 36, single phase alternating current (A.C.) contactor 38, three-phase compensation capacitors 37 and single-phase compensation capacitors 39; Said switching control switch 35 1 ends are connected with reactive power compensation control switch 34; The other end is connected with an end of three-phase ac contactor 36 or single phase alternating current (A.C.) contactor 38, and the other end of said three-phase ac contactor 36 and single phase alternating current (A.C.) contactor 38 is connected with single-phase compensation capacitors 39 with three-phase compensation capacitors 37 respectively.
Said two observing and controlling system loops comprise earth leakage protective loop, closing circuit, trip(ping) circuit and earth leakage protective device 33; The input of said earth leakage protective loop, closing circuit, trip(ping) circuit and earth leakage protective device respectively through fuse and A mutually power supply terminal be connected, output is connected with the end opening moving contact of main circuit breaker respectively.
Be provided with horizontal dividing plate 27 in the said cabinet 1; Said horizontal dividing plate 27 is divided into three chambers in upper, middle and lower with cabinet; Said upper chamber is for reserving chamber; Be provided with in the said middle chamber the perpendicular dividing plate of cutting apart before and after it 43 of putting; Said middle chamber first half is in order to install input isolating switch 21 and main circuit breaker 23, and the middle chamber latter half is in order to install kilowatt-hour meter 31 and the anti-electricity-theft module 32 of metering, and said lower chambers is in order to install output isolating switch 25, reactive power compensator and earth leakage protective device 35.Correspondingly; Each chamber of said cabinet is respectively arranged with corresponding cabinet door; Said upper chamber front cabinet door 11 is provided with nameplate sign 14; What said middle chamber front cabinet door 12 was provided with main circuit breaker closes branch rim brake 15, and said lower chambers front cabinet door 13 is provided with the controller 18 of ammeter 16, voltmeter 17, reactive power compensator and the control switch button and the indicator light 19 of secondary control loop.
The present invention has following characteristics:
(1) each components and parts connect and use copper bus-bar, can reduce specification than the aluminium board satisfying on the basis of rated current, and are easy for installation, and technology is attractive in appearance.
(2) the inlet wire isolating switch adopts switch with knifeshaped fuse, at the electric current major loop tangible electric current cut-off point is set like this, and fuse breaks off when running into fault, plays the effect of protection, and is very convenient for user's maintenance.
(3) main circuit breaker adopts the breaker of plastic casing of motor operation; Both can realize electric operating; The breaking capacity that has frame circuit breaker again, and the less saving installing space of volume can realize the function that arrearage tripping operation and earth leakage protective trip through the inner shunt opening coil of installing of gas.
(4) the output isolating switch uses breaker of plastic casing along separate routes, branch loop rated current is distributed the demand that guarantees to reach user's size of current and go out line loop according to the rated current that goes out the loop
(5) the reactive power compensation control device adopts the mode that miniature circuit breaker combines with A.C. contactor, and the capacitor group is carried out switching and protection.And capacitor uses three-phase and the single-phase mode that combines, and both can compensate three-phase electricity; Also can compensate single-phase electricity; Through multi-functional compensating controller is installed, can realize that reactive power detects compensation automatically automatically, the pattern of manual switching before changing; More convenient, and accurately and reliably.
(6) install the anti-electricity-theft module of metering at the compartment that gauge table is installed, can adopt the wireless universal control device to realize opening and closing anti-theft module.The convenient centralized management that realizes the metering device anti-stealing electricity function.The energising situation has the antitheft indication, causes tripping operation after opening the door privately.And to sending the alarm signal of unpacking.Whether trip signal output is provided with circuit by anti-theft module self power supply has electricity irrelevant, must be with recovering after the nonshared control unit release.After power failure, open the door privately, anti-theft module output trip signal also keeps.After sending electricity, trip and the unpacking alarm signal of transmission, must be with recovering after the nonshared control unit release.When needing maintenance to open the door, open anti-theft module maintenance function, open the door and do not trip.After maintenance finishes, close the maintenance function, recovering anti-theft feature can link to each other with negative control, reaches Long-distance Control.
Claims (6)
1. a multifunctional low-voltage power distribution cabinet comprises cabinet and the primary circuit and the secondary control loop that are installed in the cabinet, it is characterized in that,
Said primary circuit comprises input isolating switch, main circuit breaker, output isolating switch, reactive power compensation control switch and reactive power compensator; Said low pressure inlet wire is connected to the fixed contact suitable for reading of input isolating switch; The end opening moving contact of said input isolating switch is connected with the fixed contact suitable for reading of main circuit breaker through connecting busbar; The end opening moving contact of said main circuit breaker is connected with the fixed contact suitable for reading of output isolating switch and the fixed contact suitable for reading of reactive power compensation control switch respectively through horizontally-arranged; The end opening moving contact of said output isolating switch is connected with load, and said reactive power compensator is connected with the end opening moving contact of reactive power compensation control switch;
Said two observing and controlling system loops comprise earth leakage protective loop, closing circuit, trip(ping) circuit and earth leakage protective device; The input of said earth leakage protective loop, closing circuit, trip(ping) circuit and earth leakage protective device respectively through fuse and A mutually power supply terminal be connected, output is connected with the end opening moving contact of main circuit breaker respectively.
2. a kind of multifunctional low-voltage power distribution cabinet according to claim 1; It is characterized in that; Said reactive power compensator comprises switching control switch, three-phase ac contactor, single phase alternating current (A.C.) contactor, three-phase compensation capacitors and single-phase compensation capacitors; Said switching control switch one end is connected with the reactive power compensation control switch; The other end is connected with an end of three-phase ac contactor or single phase alternating current (A.C.) contactor, and the other end of said three-phase ac contactor and single phase alternating current (A.C.) contactor is connected with single-phase compensation capacitors with the three-phase compensation capacitors respectively.
3. a kind of multifunctional low-voltage power distribution cabinet according to claim 1 is characterized in that, also comprises the anti-electricity-theft module of metering, and the anti-electricity-theft module of said metering is connected with said power distribution cabinet door node.
4. a kind of multifunctional low-voltage power distribution cabinet according to claim 1 is characterized in that, also comprises kilowatt-hour meter, said kilowatt-hour meter be arranged on that the current transformer in the circuit is connected between main circuit breaker and the horizontally-arranged.
5. according to each described a kind of multifunctional low-voltage power distribution cabinet of claim 1 to 4; It is characterized in that; Be provided with horizontal dividing plate in the said cabinet, said horizontal dividing plate is divided into three chambers in upper, middle and lower with cabinet, and said upper chamber is for reserving chamber; Be provided with in the said middle chamber the perpendicular dividing plate of cutting apart before and after it of putting; Said middle chamber first half is in order to install input isolating switch and main circuit breaker, and the middle chamber latter half is in order to install kilowatt-hour meter and the anti-electricity-theft module of metering, and said lower chambers is in order to install output isolating switch, reactive power compensator and earth leakage protective device.
6. a kind of multifunctional low-voltage power distribution cabinet according to claim 5; It is characterized in that; Each chamber of said cabinet is respectively arranged with corresponding cabinet door; Said upper chamber front cabinet door is provided with nameplate sign, and what said middle chamber front cabinet door was provided with main circuit breaker closes the branch rim brake, and said lower chambers front cabinet door is provided with the controller of ammeter, voltmeter, reactive power compensator and the control switch button and the indicator light of secondary control loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101475916A CN102664354A (en) | 2012-05-14 | 2012-05-14 | Multifunctional low voltage distribution cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101475916A CN102664354A (en) | 2012-05-14 | 2012-05-14 | Multifunctional low voltage distribution cabinet |
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| CN102664354A true CN102664354A (en) | 2012-09-12 |
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| CN2012101475916A Pending CN102664354A (en) | 2012-05-14 | 2012-05-14 | Multifunctional low voltage distribution cabinet |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248061A (en) * | 2013-05-22 | 2013-08-14 | 银川市立恒电气设备有限公司 | Low-voltage reactive power compensation power distribution cabinet |
| CN103491692A (en) * | 2013-10-14 | 2014-01-01 | 广东北江开关厂有限公司 | Intelligent electric system for illumination |
| CN103683031A (en) * | 2013-11-28 | 2014-03-26 | 浙江龙驰科技有限公司 | Solar outdoor distribution box |
| CN104600721A (en) * | 2015-02-04 | 2015-05-06 | 国网黑龙江省电力有限公司绥化供电公司 | Intelligent low-voltage reactive power compensation device of power distribution network and compensation method |
| CN106023748A (en) * | 2016-06-21 | 2016-10-12 | 国网浙江省电力公司培训中心 | Low-voltage metering training device |
| CN108539616A (en) * | 2018-04-13 | 2018-09-14 | 南宁市高照电器有限责任公司 | A kind of low-voltage compensation starting control cabinet |
| CN110108931A (en) * | 2019-04-25 | 2019-08-09 | 北京德威特电气科技股份有限公司 | Stealing processing method and processing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103248061A (en) * | 2013-05-22 | 2013-08-14 | 银川市立恒电气设备有限公司 | Low-voltage reactive power compensation power distribution cabinet |
| CN103491692A (en) * | 2013-10-14 | 2014-01-01 | 广东北江开关厂有限公司 | Intelligent electric system for illumination |
| CN103491692B (en) * | 2013-10-14 | 2016-03-02 | 广东北江开关厂有限公司 | A kind of intelligent electric system for illumination |
| CN103683031A (en) * | 2013-11-28 | 2014-03-26 | 浙江龙驰科技有限公司 | Solar outdoor distribution box |
| CN103683031B (en) * | 2013-11-28 | 2016-01-27 | 浙江龙驰科技有限公司 | A kind of solar energy outdoor distributing box |
| CN104600721A (en) * | 2015-02-04 | 2015-05-06 | 国网黑龙江省电力有限公司绥化供电公司 | Intelligent low-voltage reactive power compensation device of power distribution network and compensation method |
| CN104600721B (en) * | 2015-02-04 | 2017-05-03 | 国网黑龙江省电力有限公司绥化供电公司 | Intelligent low-voltage reactive power compensation device of power distribution network and compensation method |
| CN106023748A (en) * | 2016-06-21 | 2016-10-12 | 国网浙江省电力公司培训中心 | Low-voltage metering training device |
| CN108539616A (en) * | 2018-04-13 | 2018-09-14 | 南宁市高照电器有限责任公司 | A kind of low-voltage compensation starting control cabinet |
| CN108539616B (en) * | 2018-04-13 | 2020-04-28 | 南宁市高照电器有限责任公司 | Low-voltage compensation starting control cabinet |
| CN110108931A (en) * | 2019-04-25 | 2019-08-09 | 北京德威特电气科技股份有限公司 | Stealing processing method and processing device |
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