CN107017642B - Low-voltage comprehensive distribution box capable of improving power supply efficiency - Google Patents
Low-voltage comprehensive distribution box capable of improving power supply efficiency Download PDFInfo
- Publication number
- CN107017642B CN107017642B CN201710213997.2A CN201710213997A CN107017642B CN 107017642 B CN107017642 B CN 107017642B CN 201710213997 A CN201710213997 A CN 201710213997A CN 107017642 B CN107017642 B CN 107017642B
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- power supply
- cabinet body
- cover
- distribution box
- supply efficiency
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- 238000007789 sealing Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 description 12
- 238000004891 communication Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
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- 230000001052 transient effect Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/52—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/30—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing of extensible, e.g. telescopic, construction
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
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- H02J13/0006—
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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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- 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
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention relates to a low-voltage comprehensive distribution box for improving power supply efficiency, which comprises a box body and a cabinet door, wherein an electric energy meter is arranged in the box body, one path of wire inlet ends and at least one path of wire outlet ends are arranged on the electric energy meter, a fusing type isolating switch is arranged on the wire inlet ends, a current transformer is arranged on the wire inlet ends, a reactive power compensation unit is arranged in the box body, a split-phase compensation chamber and a three-phase co-compensation chamber are arranged on the reactive power compensation unit, and a distribution transformer terminal is connected to the reactive power compensation unit; the invention has the advantages that: the reactive power compensation unit is used for carrying out compensation treatment on the power supply inlet wires in the distribution box, so that the power factor of a power grid is improved, the loss of a power supply transformer and a conveying line is reduced, the power supply efficiency is improved, the power supply environment is improved, and a control signal is issued through the distribution transformer terminal.
Description
Technical Field
The invention relates to a low-voltage comprehensive distribution box for improving power supply efficiency.
Background
At present, the distribution box is an electrical wiring according to a low-voltage forest, and requires to assemble switch equipment, a measuring instrument, protection electrical equipment and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen, so that electric energy can be reasonably distributed, the opening and closing operation of a circuit are facilitated, and the problem that the quality of a power grid is reduced due to the loss of a network caused by different factors in the use process of the existing distribution box is solved, so that the power supply efficiency is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a low-voltage comprehensive distribution box for improving power supply efficiency and solving the problem of low power supply efficiency of the existing distribution box.
In order to solve the technical problems, the invention is realized by the following technical scheme: the utility model provides an improve low pressure integrated distribution box of power supply efficiency, including the cabinet body and cabinet door, the cabinet door sets up on the cabinet body, the internal electric energy meter that is equipped with of cabinet, be equipped with one way inlet end and at least one way outlet end on the electric energy meter, all be equipped with first circuit breaker on inlet end and the outlet end, be equipped with the fusing isolator on the inlet end, be equipped with current transformer on the inlet end, the internal reactive power compensation unit that is equipped with of cabinet, be equipped with split-phase compensation room and three-phase co-compensation room on the reactive power compensation unit, be equipped with the second circuit breaker on the reactive power compensation unit, be connected with the distribution transformer terminal that issues control strategy to the reactive power compensation unit on the reactive power compensation unit, be equipped with the collection chip that gathers and statistics reactive power compensation unit operating parameter on the distribution transformer terminal, be equipped with digital signal processor on the collection chip, the distribution transformer terminal links to each other with current transformer, be equipped with surge protector on the cabinet body, be equipped with the cross-sectional area not less than 6 square millimeters's earth connection on the surge protector.
Preferably, the reactive compensation unit is provided with a lightning arrester, so that damage to an alternating current power supply system and electric equipment caused by lightning overvoltage, operation surge overvoltage and other transient overvoltage can be prevented.
Preferably, the electric energy meter is connected with the concentrator, so that an operator can read data on the electric energy meter, data communication is realized, and the line utilization rate can be improved.
Preferably, the distribution transformer terminal is connected with a standby power supply, so that continuous and stable operation of the distribution terminal can be ensured.
Preferably, the top of the cabinet body is provided with a heat insulation layer, the cabinet body is connected with a ventilation pipe, the heat insulation layer is arranged to prevent heat from damaging the cabinet body, and the ventilation pipe is arranged to facilitate ventilation of the cabinet body.
Preferably, be equipped with three-point door lock on the cabinet door, three-point door lock includes lock shell and lock core, be equipped with the visor of sealed lock core on the lock shell, the visor includes inner cup and enclosing cover, the inner cup sets up on the lock shell, the enclosing cover sets up including, the setting of enclosing cover is internal to be equipped with the connecting piece of connecting the cabinet door, realize cabinet door locking on the cabinet body through three-point door lock, can realize the steady locking of cabinet door on the cabinet body, and three-point door lock sets up into lock shell and lock core, and be equipped with the visor of sealed lock core on the lock shell, can realize that the lock core has waterproof, rust-resistant and pick-proof function, the security performance of block terminal box has been improved greatly, the life of three-point door lock has been improved, set up into inner cup and enclosing cover with the visor, dual protection through inner cup and enclosing cover realization lock core, further improved the theftproof effect, the setting of connecting piece, can realize the fixed when the cabinet door is opened, the rocking of cabinet door when avoiding overhauling, and the connecting piece sets up in the cabinet body, the damage of connecting piece has been reduced.
Preferably, the inner cup includes upper cover and lower cover, lower cover fixed connection is on the lock shell, upper cover sliding connection is on the lock shell, and connect through mutually supporting location structure between upper cover and the lower cover, location structure includes reference column and locating hole, the one end rotation of enclosing cover is connected and is covered down, the other end joint of enclosing cover is covered up, realize through rotating the enclosing cover that the enclosing cover breaks away from the upper cover, make the upper cover can slide on the lock shell, adjust reliably, and the security performance is higher, location structure's setting can realize the zonulae occludens of upper cover and lower cover.
Preferably, the locating column is arranged at the top of the upper cover, and the locating column extends upwards or transversely, the locating hole is arranged at the bottom of the lower cover, the connection is reliable, the accurate location can be realized, and the transverse shaking of the upper cover is avoided.
Preferably, the connecting piece includes connecting rod and telescopic link, and the telescopic link includes stiff end and expansion end, is equipped with the dead lever of being connected with the cabinet body rotation on the stiff end, and the one end and the expansion end of connecting rod link to each other, and the other end of connecting rod is equipped with the connecting hole, is equipped with on the cabinet door with connecting hole matched with spliced pole, can realize the regulation of different angles when the cabinet door is opened, and the connecting hole cooperates with the spliced pole, can realize the fixed when the cabinet door is opened.
Preferably, the bottom and the top of the cabinet body are both provided with mounting beams, the top of the cabinet body is provided with hanging rings, the bottom mounting and top hanging of the cabinet body can be realized, different mounting environments are realized, the arrangement of the hanging rings is convenient for the lifting of the cabinet body to ensure the accurate positioning of the cabinet body, and the quick mounting of the cabinet body can be realized.
In summary, the invention has the advantages that: 1. the reactive power compensation unit is used for carrying out compensation treatment on the power supply inlet wire in the distribution box, so that the power factor of a power grid is improved, the loss of a power supply transformer and a transmission line is reduced, the power supply efficiency is improved, the power supply environment is improved, and a control signal is issued by the distribution transformer terminal, so that the automatic control of the reactive power compensator is realized according to the optimal compensation mode under the actual running condition of the line, the compensation power of the reactive power compensation unit can be in place in one step, and the damage of the distribution box is reduced;
2. the reactive power compensation unit is arranged into a phase compensation chamber and a three-phase co-compensation chamber, so that the reactive power compensation unit can compensate the mixed compensation mode of the distribution box, the compensation of different load conditions can be adapted, and the overall economic performance is low;
3. the arrangement of the acquisition chip can control the strategy to the lower part of the reactive compensation unit, improves the compensation efficiency of the reactive compensation unit, can acquire and count the operation parameters of the intelligent capacitor bank, and realizes the data processing through the digital signal processor, thereby being convenient for operators to watch and read;
4. the arrangement of the surge protector can ensure the grounding effect of the distribution box, prevent lightning stroke and prolong the service life of equipment in the distribution box;
5. the arrangement of the current transformer can measure the current flowing through the incoming line end in the electric energy meter, and the safety performance of the distribution box can be well guaranteed.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a low voltage integrated distribution box for improving power supply efficiency;
fig. 2 is a schematic structural diagram of a distribution terminal according to the present invention;
FIG. 3 is a schematic view of the structure of the cabinet of the present invention;
FIG. 4 is a schematic view of a three-point door lock according to the present invention;
fig. 5 is a schematic structural view of the connector of the present invention.
Detailed Description
As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a low-voltage integrated distribution box for improving power supply efficiency includes a cabinet body 1 and a cabinet door 2, the cabinet door 2 is arranged on the cabinet body 1, an electric energy meter 3 is arranged in the cabinet body 1, a path of wire inlet end 31 and at least a path of wire outlet end 32 are arranged on the electric energy meter 3, first circuit breakers 33 are arranged on the wire inlet end 31 and the wire outlet end 32, a fuse isolating switch 34 is arranged on the wire inlet end 31, a current transformer 35 is arranged on the wire inlet end 31, a reactive compensation unit 4 is arranged in the cabinet body 1, a split-phase compensation chamber 41 and a three-phase co-compensation chamber 42 are arranged on the reactive compensation unit 4, a second circuit breaker 43 is arranged on the reactive compensation unit 4, a distribution transformer terminal 5 for issuing a control strategy to the reactive compensation unit is connected on the reactive compensation unit 4, a collection chip 51 for collecting and counting operation parameters of the reactive compensation unit is arranged on the distribution transformer terminal 5, a digital signal processor 52 is arranged on the collection chip 51, the distribution transformer terminal 5 is connected with the current transformer 35, a surge protector 6 is arranged on the cabinet body 1, and the surge protector 6 is provided with a ground wire with a cross section of not smaller than 6 mm square.
The distribution transformer terminal 5 further comprises a box 53, the acquisition chip 51 is arranged in the box 53, an RS-485 communication interface is arranged on the acquisition chip 51, reactive compensation is achieved by the reactive compensation unit 4 through control signals issued by the acquisition chip 51, a residual current action protector is connected to the RS-485 communication interface, a branch loop monitoring device is arranged on the box, the acquisition processor and the branch loop monitoring device are communicated through the RS-485 communication interface, a GPRS communication device which is normally connected with a master station is arranged outside the box, the residual current action protector is arranged, data such as voltage, current residual current value, residual current out-of-limit event, tripping event and locking event in the communication distribution box can be stored, the residual current action protector can be measured in multiple points through the RS-485 communication interface, corresponding voltage, current, power and other data can be stored for each branch loop monitoring information as a measuring point, and the arrangement of the GPRS communication device can ensure that the box is normally connected with the master station and is applied to a region far away from an outdoor open space when the distribution transformer is applied to a basement or the like.
The reactive compensation unit 4 comprises a capacitor bank, a communication interface is arranged on the capacitor bank, an overcurrent protection device or a quick-break protection device is arranged on the reactive compensation unit 4, a silicon controlled composite switch or an electromagnetic relay switch is adopted in a switching mode of the reactive compensation unit 4 according to different requirements, the reactive compensation unit 4 has the functions of remote switching, compensation parameter setting, compensation record inquiring and subsection power factor statistics, on-line state detection of the capacitor is realized through comparison of capacitance current and actual switching capacitance, after the capacitor is cut off in a rated power grid, residual voltage is controlled to be below 50V within 3min, the capacitor in the embodiment adopts a low-voltage self-healing capacitor, the voltage of the low-voltage self-healing capacitor is selected to be greater than 1.1 times of the voltage of a rated effective value of system operation, a reactor is arranged on the capacitor bank, and the reactive compensation unit 4 is provided with a lightning arrester 40, so that damage to an alternating current power supply system and electric equipment caused by lightning overvoltage, operation surge overvoltage and other transient overvoltage can be prevented.
The concentrator 30 is connected to the electric energy meter 3, which is favorable for operators to read data on the electric energy meter, realize data communication, can improve the utilization rate of a circuit, is connected with the standby power supply 50 on the distribution transformer terminal 5, can ensure continuous and stable work of the distribution terminal, and comprises a rechargeable battery pack and a super capacitor pack, wherein the rechargeable battery pack is provided with a first magnetic control switch, the super capacitor pack is provided with a second magnetic control switch, the first magnetic control switch and the second magnetic control switch are a pair of linkage switches, the quick exchange of the rechargeable battery pack and the super capacitor pack can be realized, the acquisition processor can upload a power failure event to the main station, the top end of the cabinet body 1 is provided with the heat insulation layer 11, the cabinet body 1 is connected with the ventilation pipe 12, the heat insulation layer is arranged, the cabinet body can be prevented from being damaged by heat, and the ventilation pipe is favorable for ventilation of the cabinet body.
The cabinet door 2 is provided with the three-point door lock 20, the three-point door lock 20 comprises a lock shell 21 and a lock cylinder 22, the lock shell 21 is provided with a protective cover 23 for sealing the lock cylinder, the protective cover 23 comprises an inner cover 24 and an outer cover 25, the inner cover 24 is arranged on the lock shell 21, the outer cover 25 is arranged on the inner cover 24, a connecting piece 7 for connecting the cabinet door 2 is arranged in the cabinet body 1, the cabinet door is locked on the cabinet body through the three-point door lock in the embodiment, the cabinet door can be stably locked on the cabinet body, the three-point door lock is arranged into the lock shell and the lock cylinder, the lock cylinder is provided with a protective cover for sealing the lock cylinder, the lock cylinder has the functions of water resistance, rust resistance and prying resistance, the safety performance of the distribution box body is greatly improved, the service life of the three-point door lock is prolonged, the protective cover is arranged into the inner cover and the outer cover, double protection of the lock cylinder is realized through the inner cover and the outer cover, the antitheft effect is further improved, the cabinet door is fixed when the cabinet door is opened, the cabinet is prevented from shaking, and the connecting piece is prevented from being damaged.
The inner cover 24 includes upper cover 26 and lower cover 27, lower cover 27 fixed connection is on the lock shell 21, upper cover 26 sliding connection is on the lock shell 21, and connect through mutually supporting location structure 8 between upper cover 26 and the lower cover 27, location structure 8 includes reference column 81 and locating hole 82, the one end rotation of enclosing cover 25 is connected on lower cover 27, the other end joint of enclosing cover 25 is on upper cover 26, realize the enclosing cover and break away from the upper cover through rotating the enclosing cover, make the upper cover can slide on the lock shell, adjust reliably, and the security performance is higher, location structure's setting can realize the zonulae occludens of upper cover and lower cover, the reference column 81 is established at the top of upper cover 26, and the reference column 81 upwards extends or transversely extends, the locating hole 82 is established in the bottom of lower cover 27, connect reliably, can realize accurate location, avoid the lateral rocking of upper cover.
The connecting piece 7 includes connecting rod 71 and telescopic link 72, the telescopic link 72 includes stiff end 73 and expansion end 74, be equipped with on the stiff end 73 with cabinet body 1 rotate the dead lever 75 of being connected, the one end of connecting rod 71 links to each other with expansion end 74, the other end of connecting rod 71 is equipped with connecting hole 76, be equipped with on the cabinet door 2 with connecting hole 76 matched with spliced pole 29, can realize the regulation of different angles when the cabinet door is opened, the connecting hole cooperates with the spliced pole, can realize the cabinet door fixed when opening, cabinet body 1's bottom and top all are equipped with mounting beam 13, cabinet body 1's top is equipped with rings 14, can realize cabinet body bottom installation and top hoist and mount, realize different installation environment, the setting of rings, the accurate location of the lifting assurance cabinet body of being convenient for, can realize the quick installation of the cabinet body.
During installation, different installation modes are selected through different installation environments, bottom installation and top hoisting are performed, when the acquisition chip 51 in the distribution transformer terminal 5 receives a control signal from the lower part of the reactive compensation unit 4 through RS-485 when the branch loop monitoring device detects that a circuit is heavy, the acquisition chip 51 performs compensation by selecting a mode that the split-phase compensation chamber 41 performs independent compensation or the three-phase co-compensation chamber 42 performs independent compensation or the three-phase co-compensation chamber 4 performs mixed compensation with the three-phase co-compensation chamber 42 according to the control signal, the circuit is compensated, and operation parameters of the reactive compensation unit 4 are acquired and counted through the acquisition chip 51, after the distribution transformer terminal 5 has power failure, the standby power supply 50 immediately supplies power to the acquisition chip 51 to immediately report a power failure event, and the power failure time is recorded.
In addition to the above preferred embodiments, the present invention has other embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the invention, which is defined in the appended claims.
Claims (6)
1. The utility model provides an improve power supply efficiency's low pressure comprehensive distribution box, includes cabinet body (1) and cabinet door (2), and cabinet door (2) set up on cabinet body (1), are equipped with electric energy meter (3), its characterized in that in cabinet body (1): a first circuit breaker (33) is arranged on each of the incoming line end (31) and the outgoing line end (32) on the electric energy meter (3), a fuse type isolating switch (34) is arranged on each of the incoming line end (31) and the outgoing line end (32), a current transformer (35) is arranged on each of the incoming line ends (31), a reactive compensation unit (4) is arranged in the cabinet body (1), a split-phase compensation chamber (41) and a three-phase co-compensation chamber (42) are arranged on each of the reactive compensation units (4), a second circuit breaker (43) is arranged on each of the reactive compensation units (4), a distribution transformer terminal (5) for issuing a control strategy to each of the reactive compensation units is connected to each of the reactive compensation units, a digital signal processor (52) is arranged on each of the distribution transformer terminal (5), each of the distribution transformer terminal (5) is connected with the current transformer (35), a surge protector (6) is arranged on each of the cabinet body (1), and a grounding wire (60) with a cross section of not smaller than 6 square millimeters is arranged on each of the surge protector (6);
the cabinet door (2) is provided with a three-point door lock (20), the three-point door lock (20) comprises a lock shell (21) and a lock cylinder (22), the lock shell (21) is provided with a protective cover (23) for sealing the lock cylinder, the protective cover (23) comprises an inner cover (24) and an outer cover (25), the inner cover (24) is arranged on the lock shell (21), the outer cover (25) is arranged on the inner cover (24), and a connecting piece (7) for connecting the cabinet door (2) is arranged in the cabinet body (1);
the inner cover (24) comprises an upper cover (26) and a lower cover (27), the lower cover (27) is fixedly connected to the lock shell (21), the upper cover (26) is connected to the lock shell (21) in a sliding manner, the upper cover (26) and the lower cover (27) are connected through a positioning structure (8) which is matched with each other, the positioning structure (8) comprises a positioning column (81) and a positioning hole (82), one end of the outer cover (25) is rotationally connected to the lower cover (27), and the other end of the outer cover (25) is clamped on the upper cover (26);
the positioning column (81) is arranged at the top of the upper cover (26), the positioning column (81) extends upwards or transversely, and the positioning hole (82) is arranged at the bottom of the lower cover (27);
the connecting piece (7) includes connecting rod (71) and telescopic link (72), and telescopic link (72) are equipped with on stiff end (73) and are connected with cabinet body (1) rotation dead lever (75) including stiff end (73) and expansion link (72), and one end and expansion link (74) of connecting rod (71) link to each other, and the other end of connecting rod (71) is equipped with connecting hole (76), is equipped with on cabinet door (2) with connecting hole (76) matched with spliced pole (29).
2. The low-voltage integrated distribution box for improving power supply efficiency according to claim 1, wherein: and the reactive compensation unit (4) is provided with a lightning arrester (40).
3. The low-voltage integrated distribution box for improving power supply efficiency according to claim 1, wherein: the electric energy meter (3) is connected with a concentrator (30).
4. The low-voltage integrated distribution box for improving power supply efficiency according to claim 1, wherein: the distribution transformer terminal (5) is connected with a standby power supply (50).
5. The low-voltage integrated distribution box for improving power supply efficiency according to claim 1, wherein: the top of the cabinet body (1) is provided with a heat insulation layer (11), and the cabinet body (1) is connected with a ventilation pipe (12).
6. The low-voltage integrated distribution box for improving power supply efficiency according to claim 1, wherein: the bottom and the top of the cabinet body (1) are both provided with mounting beams (13), and the top of the cabinet body (1) is provided with hanging rings (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213997.2A CN107017642B (en) | 2017-04-01 | 2017-04-01 | Low-voltage comprehensive distribution box capable of improving power supply efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213997.2A CN107017642B (en) | 2017-04-01 | 2017-04-01 | Low-voltage comprehensive distribution box capable of improving power supply efficiency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107017642A CN107017642A (en) | 2017-08-04 |
| CN107017642B true CN107017642B (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710213997.2A Active CN107017642B (en) | 2017-04-01 | 2017-04-01 | Low-voltage comprehensive distribution box capable of improving power supply efficiency |
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| Country | Link |
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| CN (1) | CN107017642B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490991A (en) * | 2017-09-13 | 2017-12-19 | 广西电网有限责任公司电力科学研究院 | A kind of isolator operating mechanism intelligence control system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710709A (en) * | 2009-11-27 | 2010-05-19 | 重庆市电力公司永川供电局 | Reactive power compensation integrated box of low-voltage distribution transformer |
| CN202231318U (en) * | 2011-09-14 | 2012-05-23 | 渭南供电局 | Multifunctional low voltage distribution box |
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| CN204966980U (en) * | 2015-08-23 | 2016-01-13 | 邵云蛟 | Block terminal wiring system is synthesized to low pressure |
| CN206640320U (en) * | 2017-04-01 | 2017-11-14 | 国家电网公司 | A kind of low-voltage comprehensive distribution box |
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2017
- 2017-04-01 CN CN201710213997.2A patent/CN107017642B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710709A (en) * | 2009-11-27 | 2010-05-19 | 重庆市电力公司永川供电局 | Reactive power compensation integrated box of low-voltage distribution transformer |
| CN202231318U (en) * | 2011-09-14 | 2012-05-23 | 渭南供电局 | Multifunctional low voltage distribution box |
| CN203660664U (en) * | 2013-11-13 | 2014-06-18 | 国家电网公司 | Comprehensive distribution box integrating protection, measurement and control |
| CN204442008U (en) * | 2014-11-30 | 2015-07-01 | 国家电网公司 | A kind of intelligent type low-voltage comprehensive distribution cabinet |
| CN204290066U (en) * | 2014-12-25 | 2015-04-22 | 国家电网公司 | Low-voltage comprehensive distribution box wiring system |
| CN104577765A (en) * | 2014-12-25 | 2015-04-29 | 贵州天能电力高科技有限公司 | Reactive power compensation cabinet provided with two doors |
| CN204835233U (en) * | 2015-07-01 | 2015-12-02 | 扬州新扬开关设备有限公司 | Comprehensive block terminal of area compensation |
| CN204966980U (en) * | 2015-08-23 | 2016-01-13 | 邵云蛟 | Block terminal wiring system is synthesized to low pressure |
| CN204905877U (en) * | 2015-08-31 | 2015-12-23 | 国网安徽省电力公司经济技术研究院 | Mountain area low voltage distribution system with reactive compensation function |
| CN206640320U (en) * | 2017-04-01 | 2017-11-14 | 国家电网公司 | A kind of low-voltage comprehensive distribution box |
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| CN107017642A (en) | 2017-08-04 |
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