CN202633748U - Multifunctional low-voltage distribution cabinet - Google Patents

Multifunctional low-voltage distribution cabinet Download PDF

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Publication number
CN202633748U
CN202633748U CN201220215147.9U CN201220215147U CN202633748U CN 202633748 U CN202633748 U CN 202633748U CN 201220215147 U CN201220215147 U CN 201220215147U CN 202633748 U CN202633748 U CN 202633748U
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China
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reactive power
phase
cabinet
power distribution
switch
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Expired - Fee Related
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CN201220215147.9U
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Chinese (zh)
Inventor
王军
杨锐
李晓
柴刚
韩为民
马玉杰
皇甫宝家
刘义聪
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Zhangqiu power supply Co
State Grid Corp of China SGCC
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Zhangqiu power supply Co
State Grid Corp of China SGCC
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    • 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

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Abstract

一种多功能低压配电柜，包括柜体和安装在柜体内的一次回路、二次控制回路、计量防窃电模块和电度表，所述计量防窃电模块与所述配电柜门节点连接，所述电度表与设置在主断路器与横排之间电路中的电流互感器连接；所述柜体内设置有横置隔板，所述横置隔板将柜体分割为上、中、下三个腔室。采用上述结构后，该多功能低压配电柜集低压进线、出线、无功补偿于一体，既降低了成本、节省了空间又提高了安全系数。本实用新型通过最短距离和使用最少的电气连接线将内部各个元器件进行连接，不仅实现了多个国家标准配电设备的相互融合，而且具有结构简单、使用方便、运行安全可靠等特点。

Figure 201220215147

A multifunctional low-voltage power distribution cabinet, including a cabinet body and a primary circuit installed in the cabinet, a secondary control circuit, a metering anti-theft module and a watt-hour meter, the metering anti-theft module and the power distribution cabinet door Node connection, the watt-hour meter is connected to the current transformer installed in the circuit between the main circuit breaker and the horizontal row; the horizontal partition is arranged in the cabinet, and the horizontal partition divides the cabinet into upper , middle and lower chambers. After adopting the above structure, the multifunctional low-voltage power distribution cabinet integrates low-voltage incoming line, outgoing line, and reactive power compensation, which not only reduces the cost, saves space, but also improves the safety factor. The utility model connects various internal components through the shortest distance and the least electrical connection wires, not only realizes the mutual fusion of multiple national standard power distribution equipment, but also has the characteristics of simple structure, convenient use, safe and reliable operation, etc.

Figure 201220215147

Description

The multifunctional low-voltage power distribution cabinet
Technical field
The utility model 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 utility model provides a kind of multifunctional low-voltage switch cubicle with multipurpose, many standards and characteristics such as anti-electricity-theft, and it is not only easy for installation, and it is little to take up room.
For addressing the above problem, the utility model 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 secondary control loop comprises 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 beneficial effect of the utility model is: 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 utility model 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 the utility model switch cubicle;
Fig. 2 is the front cut-away view of the utility model switch cubicle;
Fig. 3 is the back side cut-away view of the utility model switch cubicle;
Fig. 4 is the left pseudosection of the utility model switch cubicle;
Fig. 5 is the primary circuit circuit theory diagrams of the utility model;
Fig. 6 is the utility model secondary control loop circuit theory diagrams;
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 utility model; 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 secondary control loop comprises 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 utlity model 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)

1.一种多功能低压配电柜，包括柜体和安装在柜体内的一次回路和二次控制回路，其特征是， 1. A multifunctional low-voltage power distribution cabinet, including a cabinet body and a primary circuit and a secondary control circuit installed in the cabinet body, is characterized in that, 所述一次回路包括输入隔离开关、主断路器、输出隔离开关、无功补偿控制开关和无功补偿装置，所述低压进线连接至输入隔离开关的上口静触头，所述输入隔离开关的下口动触头通过连接母排与主断路器的上口静触头连接，所述主断路器的下口动触头通过横排分别与输出隔离开关的上口静触头和无功补偿控制开关的上口静触头连接，所述输出隔离开关的下口动触头与负载连接，所述无功补偿装置与无功补偿控制开关的下口动触头连接； The primary circuit includes an input isolating switch, a main circuit breaker, an output isolating switch, a reactive power compensation control switch and a reactive power compensation device, the low-voltage incoming line is connected to the upper static contact of the input isolating switch, and the input isolating switch The lower movable contact of the main circuit breaker is connected to the upper static contact of the main circuit breaker through the connecting busbar, and the lower movable contact of the main circuit breaker is respectively connected to the upper static contact and reactive power contact of the output isolating switch through the horizontal row. The upper static contact of the compensation control switch is connected, the lower movable contact of the output isolation switch is connected to the load, and the reactive power compensation device is connected to the lower movable contact of the reactive power compensation control switch; 所述二次控制回路包括漏电保护回路、合闸回路、跳闸回路和漏电保护器，所述漏电保护回路、合闸回路、跳闸回路和漏电保护器的输入端分别通过熔断器与A相电源端子连接，输出端分别与主断路器的下口动触头连接。 The secondary control circuit includes a leakage protection circuit, a closing circuit, a tripping circuit and a leakage protector, and the input ends of the leakage protection circuit, the closing circuit, the tripping circuit and the leakage protector are respectively connected to the A-phase power terminal through a fuse. The output terminals are respectively connected to the lower moving contacts of the main circuit breaker. 2.根据权利要求1所述的一种多功能低压配电柜，其特征是，所述无功补偿装置包括投切控制开关、三相交流接触器、单相交流接触器、三相无功补偿电容器组和单相无功补偿电容器组，所述投切控制开关一端与无功补偿控制开关连接，另一端与三相交流接触器或单相交流接触器的一端连接，所述三相交流接触器和单相交流接触器的另一端分别与三相无功补偿电容器组和单相无功补偿电容器组连接。 2. A multifunctional low-voltage power distribution cabinet according to claim 1, wherein the reactive power compensation device includes switching control switches, three-phase AC contactors, single-phase AC contactors, three-phase reactive power A compensation capacitor bank and a single-phase reactive power compensation capacitor bank, one end of the switching control switch is connected to the reactive power compensation control switch, and the other end is connected to one end of a three-phase AC contactor or a single-phase AC contactor, and the three-phase AC The other end of the contactor and the single-phase AC contactor are respectively connected with the three-phase reactive power compensation capacitor bank and the single-phase reactive power compensation capacitor bank. 3.根据权利要求1所述的一种多功能低压配电柜，其特征是，还包括计量防窃电模块，所述计量防窃电模块与所述配电柜门节点连接。 3. The multi-functional low-voltage power distribution cabinet according to claim 1, further comprising a metering and anti-stealing power module connected to the door node of the power distribution cabinet. 4.根据权利要求1所述的一种多功能低压配电柜，其特征是，还包括电度表，所述电度表与设置在主断路器与横排之间电路中的电流互感器连接。 4. A multifunctional low-voltage power distribution cabinet according to claim 1, further comprising a watt-hour meter, and the watt-hour meter is connected to the current transformer arranged in the circuit between the main circuit breaker and the horizontal row connect. 5.根据权利要求1至4任一项所述的一种多功能低压配电柜，其特征是，所述柜体内设置有横置隔板，所述横置隔板将柜体分割为上、中、下三个腔室，所述上腔室为预留腔室，所述中腔室内设置有将其前后分割的竖置隔板，所述中腔室前半部分用以安装输入隔离开关和主断路器，中腔室后半部分用以安装电度表和计量防窃电模块，所述下腔室用以安装输出隔离开关、无功补偿装置和漏电保护器。 5. A multi-functional low-voltage power distribution cabinet according to any one of claims 1 to 4, wherein a horizontal partition is arranged in the cabinet, and the horizontal partition divides the cabinet into upper and lower parts. , middle and lower chambers, the upper chamber is a reserved chamber, the middle chamber is provided with a vertical partition to divide it from front to back, and the first half of the middle chamber is used to install the input isolation switch And the main circuit breaker, the second half of the middle chamber is used to install the watt-hour meter and the metering anti-theft module, and the lower chamber is used to install the output isolation switch, reactive power compensation device and leakage protector. 6.根据权利要求5所述的一种多功能低压配电柜，其特征是，所述柜体的各腔室分别设置有相对应的柜门，所述上腔室前柜门上设置有铭牌标识，所述所述中腔室前柜门设置有主断路器的合分手闸，所述下腔室前柜门上设置有电流表、电压表、无功补偿装置的控制器和二次控制回路的控制开关按钮及指示灯。 6. A multifunctional low-voltage power distribution cabinet according to claim 5, characterized in that, each chamber of the cabinet body is provided with a corresponding cabinet door, and the front cabinet door of the upper chamber is provided with a The nameplate marks, the front cabinet door of the middle chamber is provided with a closing switch of the main circuit breaker, and the front cabinet door of the lower chamber is provided with an ammeter, a voltmeter, a controller of a reactive power compensation device and a secondary control Circuit control switch button and indicator light.
CN201220215147.9U 2012-05-14 2012-05-14 Multifunctional low-voltage distribution cabinet Expired - Fee Related CN202633748U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102664354A (en) * 2012-05-14 2012-09-12 章丘市供电公司 Multifunctional low voltage distribution cabinet
CN104037620A (en) * 2014-05-21 2014-09-10 吴静 Electric cabinet contactor electric leakage protection device
CN104901196A (en) * 2015-05-18 2015-09-09 中黔电气集团股份有限公司 Movable low-voltage electric leakage protection power cabinet
CN110336194A (en) * 2019-07-05 2019-10-15 海鸿电气有限公司 Low-voltage cabinet and miniaturization preassembled transformer station

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102664354A (en) * 2012-05-14 2012-09-12 章丘市供电公司 Multifunctional low voltage distribution cabinet
CN104037620A (en) * 2014-05-21 2014-09-10 吴静 Electric cabinet contactor electric leakage protection device
CN104901196A (en) * 2015-05-18 2015-09-09 中黔电气集团股份有限公司 Movable low-voltage electric leakage protection power cabinet
CN110336194A (en) * 2019-07-05 2019-10-15 海鸿电气有限公司 Low-voltage cabinet and miniaturization preassembled transformer station
CN110336194B (en) * 2019-07-05 2024-07-05 海鸿电气有限公司 Low voltage cabinet and miniaturized prefabricated substation

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