CN110829213B - Multi-stage voltage regulation compensation device of transformer substation - Google Patents
Multi-stage voltage regulation compensation device of transformer substation Download PDFInfo
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- CN110829213B CN110829213B CN201911222190.0A CN201911222190A CN110829213B CN 110829213 B CN110829213 B CN 110829213B CN 201911222190 A CN201911222190 A CN 201911222190A CN 110829213 B CN110829213 B CN 110829213B
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- 230000033228 biological regulation Effects 0.000 title claims abstract description 48
- 239000003990 capacitor Substances 0.000 claims abstract description 117
- 238000005452 bending Methods 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000037237 body shape Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000750 progressive effect Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000004044 response Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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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
- H02B1/30—Cabinet-type casings; 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
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- 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
- H02B1/565—Cooling; Ventilation for cabinets
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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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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- Engineering & Computer Science (AREA)
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Abstract
The invention provides a transformer substation multistage voltage regulation compensation device which comprises a cabinet body, a controller, a PT power supply box, a plurality of integrated capacitors, three buses and a wire inlet cable electrically connected with the three buses, wherein the controller, the PT power supply box, the integrated capacitors comprise a first shell and three second shells, parallel capacitor groups are arranged in the first shell, an intelligent control component is arranged in the second shell, the first shell is arranged into a more reasonable prolate square body shape, the second shell is arranged on a top plate of the first shell along the length direction of the first shell, the integrated capacitors are arranged at intervals along the width direction of the top plate, and the PT power supply box is arranged at one end of the integrated capacitors in the arrangement direction of the first shell, so that the internal structure of the cabinet body is more compact and reasonable, the integrated capacitors can be contained more in the cabinet body with smaller volume, finer voltage regulation compensation can be realized, the heat dissipation of each electric component can be ensured, and the service effect and the service life of the transformer substation are ensured better.
Description
Technical Field
The invention relates to the technical field of voltage regulation compensation, in particular to a multi-stage voltage regulation compensation device of a transformer substation.
Background
The compensation of the transformer substation on a 10kV system mainly aims at compensating the loss of reactive power from a power supply area, improving the bus voltage and keeping the system voltage in a relatively stable interval; the reactive compensation is an important guarantee link of the power quality of a power supply system, but the load of a user side is continuously changed, so that the required reactive gaps are different, the reactive compensation needs to make corresponding actions, the reactive compensation is handled by a reasonable compensation capacity, and quick response is needed; the method is obviously impossible for the traditional transformer substation compensation equipment at present, firstly, the limitation of the switching times is the first, the centralized compensation of the transformer substation is impossible to frequently switch, the real-time adjustment of the capacity of the equipment cannot be performed, secondly, the grouping capacity is extremely poor, the reactive power requirement of the system cannot be met due to the fact that the compensation equipment is frequently not switched on, and the reactive power requirement of the system cannot be met, and the compensation is possibly performed due to the fact that a group of compensation equipment can be switched on, so that the system voltage is too high, the equipment can be burnt, and even more serious transformer substation power failure accidents can occur; in the third traditional transformer substation compensation equipment, each loop is provided with a cabinet body, one path of capacity is generally larger, a switch installed in the cabinet body is also larger, the volume of the cabinet body is also larger, an internal circuit is also more complicated, potential safety hazards are more, and finer control cannot be realized.
Disclosure of Invention
Based on the above-mentioned current situation, the main objective of the present invention is to provide a multi-stage voltage regulation compensation device for a transformer substation, so as to solve the above-mentioned problems in the existing voltage regulation compensation scheme for the transformer substation.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The invention provides a transformer substation multistage voltage regulation compensation device, which comprises a cabinet body, a controller, a PT power supply box, a plurality of integrated capacitors, three buses and incoming cables, wherein the controller, the PT power supply box, the integrated capacitors, the three buses and the incoming cables are arranged in the cabinet body, the incoming cables are electrically connected with the three buses, the integrated capacitors comprise a shell, the shell comprises a first shell and three second shells, the first shell is in a prolate square shape and comprises a top plate, a bottom plate, a first wide side plate and a second wide side plate which are oppositely arranged, a first narrow side plate and a second narrow side plate which are oppositely arranged, a parallel capacitor group is arranged in the first shell, the parallel capacitor group comprises a first capacitor, a second capacitor and a third capacitor which are arranged in the length direction of the top plate, the three second shells are all arranged on the top plate and are arranged in the length direction of the top plate, the second shells are internally provided with intelligent control components, the intelligent control components comprise an intelligent controller, an intelligent switch and a current transformer, the intelligent control components in series connection with the intelligent control components, the intelligent control components in the three second shells are respectively connected with a first capacitor, a second capacitor and a third electric control port, and an intelligent control signal port;
the plurality of integrated capacitors are arranged at intervals along the width direction of the top plate, and the PT power supply box is arranged at one end of the integrated capacitors in the arrangement direction;
The intelligent control device is characterized in that a partition plate is arranged in the cabinet body, three buses are hung on the partition plate, the three intelligent control components of the integrated capacitor are respectively electrically connected with the three buses, and the extending direction of the buses is consistent with the arrangement direction of the integrated capacitor.
Preferably, the second housing includes a transformer housing portion for accommodating the current transformer, the transformer housing portion being adapted to the shape of the current transformer, the axes of the respective transformer housing portions of the plurality of integral capacitors being collinear and parallel with the respective bus bars.
Preferably, three first electric connection structures are arranged on the top plate of the first shell and are electrically connected with the first capacitor, the second capacitor and the third capacitor respectively, each second shell is provided with a second electric connection structure, the second electric connection structures are electrically connected with the intelligent control component, and when the second shell is arranged on the top plate of the first shell, the first electric connection structures are electrically connected with the second electric connection structures.
Preferably, the first electrical connection structure comprises a plug and the second electrical connection structure comprises a socket.
Preferably, the cabinet body comprises a frame, a cabinet door connected with the frame, a back plate and two side plates, the opposite directions of the two side plates are consistent with the arrangement direction of the integrated capacitor, a wire fixing structure is arranged on one side plate of the two side plates and used for fixing the wire inlet cable, the end part, close to the one side plate, of the bus is bent downwards to form a bending part, and the wire inlet cable is electrically connected with the bending part.
Preferably, the bottom of the cabinet body is provided with a sliding rail consistent with the extending direction of the bus, and the integrated capacitor can slide along the sliding rail.
Preferably, the cabinet body is internally provided with a first beam and a second beam which are connected with the two side plates, the extending directions of the first beam and the second beam are consistent with the extending directions of the sliding rails, the first beam is positioned at the front side of the first shell, the second beam is positioned at the rear side of the first shell, a first lug plate is arranged on the first narrow side plate, a second lug plate is arranged on the second narrow side plate, and the integrated capacitor is fixedly connected with the first beam through the first lug plate and the second beam through the second lug plate.
Preferably, the partition plate divides the cabinet body into an upper accommodating cavity and a lower accommodating cavity, the cabinet door comprises an upper cabinet door for opening and closing the upper accommodating cavity and a lower cabinet door for opening and closing the lower accommodating cavity, the controller is arranged in the upper accommodating cavity, and the PT power supply box, the integrated capacitor, the bus and the incoming cable are arranged in the lower accommodating cavity.
Preferably, the other of the two side plates forms a detachable connection with the frame.
Preferably, an outlet port is arranged on the second shell and is electrically connected with the intelligent control assembly, the outlet port is electrically connected with the bus through the spray-type fuse, and the bus is clamped between a bus bar of the spray-type fuse and the fastening bolt.
Preferably, the bus bar is suspended from the separator via an insulated terminal.
According to the transformer substation multistage voltage regulation compensation device, the first shell is set to be more reasonable in a prolate square shape, the second shell is arranged on the top plate of the transformer substation multistage voltage regulation compensation device along the length direction of the transformer substation multistage voltage regulation compensation device, the plurality of integrated capacitors are arranged at intervals along the width direction of the top plate, meanwhile, the PT power supply box is arranged at one end of the integrated capacitors in the arrangement direction, so that the internal structure of the transformer substation multistage voltage regulation compensation device is more compact and reasonable, more integrated capacitors can be contained on the premise of a smaller cabinet, finer multistage voltage regulation compensation is realized, heat dissipation of electric parts such as the integrated capacitors and the PT power supply box can be guaranteed, and the service effect and service life of the transformer substation multistage voltage regulation compensation device are better ensured; in addition, in the transformer substation multistage voltage regulation compensation device, the design of the integrated capacitor adopts a totally-enclosed design, so that the safety performance is improved, and potential safety hazards caused by sundries falling to electrical parts are avoided; the transformer substation multistage voltage regulation compensation device formed by the parallel capacitor bank, the intelligent control component and the like has the practical advantages of small grading, convenient installation, large available space, convenient management and maintenance and the like, and the built-in intelligent switch of the integrated capacitor meets the requirement of frequent switching, so that technical guarantee is provided for the voltage quality fine management of the transformer substation; the device degree of automation is higher, can monitor the electric capacity state, the operating parameter etc. of every integral type condenser, and extremely conveniently realize remote control and management, satisfy the needs of present smart power grids better.
The invention provides a multistage voltage regulation compensation device of a transformer substation, which is characterized by comprising a cabinet body, a controller, a PT power box, a plurality of integrated capacitors, three buses and an incoming cable electrically connected with the three buses, wherein the controller, the PT power box, the integrated capacitors are arranged in the cabinet body;
the plurality of integrated capacitors are arranged at intervals along the width direction of the top plate, and the PT power supply box is arranged at one end of the integrated capacitors in the arrangement direction;
The intelligent control device comprises a cabinet body, wherein a baffle plate is arranged in the cabinet body, three buses are hung on the baffle plate, three intelligent control components of the integrated capacitor are respectively and electrically connected with the three buses, and the extending direction of the buses is consistent with the arrangement direction of the integrated capacitor;
The cabinet body comprises a frame, a cabinet door, a back plate and a side plate, wherein the cabinet door is connected with the frame, the back plate is arranged on one side of the side plate, the opposite side of the side plate is open, the end part, close to the side plate, of the bus is bent downwards to form a bending part, and the incoming cable is electrically connected with the bending part;
The device further comprises at least one splicing cabinet, a plurality of integrated capacitors and three splicing buses are arranged in the splicing cabinet, the arrangement direction of the integrated capacitors in the splicing cabinet is consistent with the arrangement direction of the integrated capacitors in the cabinet, the splicing cabinet is in the open side of the cabinet body and spliced with the cabinet body, and the three splicing buses are respectively and electrically connected with the three buses.
The multi-stage voltage regulation compensation device for the transformer substation provided by the invention is not only provided with the cabinet body, but also provided with the splicing cabinet, so that the adaptability of the multi-stage voltage regulation compensation device for the transformer substation is further improved, the device can be suitable for finer regulation of larger voltage, and the requirement of the current intelligent power grid is better met.
Drawings
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure:
Fig. 1 is a schematic diagram of an internal structure of a cabinet at a first view angle of a multi-stage voltage regulation compensation device of a transformer substation according to an embodiment of the present invention;
Fig. 2 is a schematic diagram of an internal structure of a cabinet at a second view angle of a multi-stage voltage regulation compensation device of a transformer substation according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a cabinet structure of a multi-stage voltage regulation compensation device of a transformer substation according to an embodiment of the present invention;
Fig. 4 is a schematic circuit diagram of an integrated capacitor of a transformer substation multi-stage voltage regulation compensation device according to an embodiment of the present invention.
In the figure:
1. A cabinet body; 11. a cabinet door; 111. an upper cabinet door; 112. a lower cabinet door; 12. a frame; 13. an upper receiving chamber; 14. a lower accommodating chamber; 15. a wire fixing structure; 2. PT power box; 3. an integral capacitor; 31. a housing; 311. a first housing; 3111. a first ear plate; 3112. a second ear plate; 312. a second housing; 4. a bus; 41. a bending part; 5. a wire inlet cable; 6. a partition plate; 7. a spray-by-spray type fuse.
Detailed Description
The present invention is described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in order to avoid obscuring the present invention, and in order to avoid obscuring the present invention, well-known methods, procedures, flows, and components are not presented in detail.
Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 1 to 4, the present application provides a multi-stage voltage regulation compensation device for a transformer substation, comprising a cabinet body 1, a controller disposed in the cabinet body 1, a PT power box 2, a plurality of integrated capacitors 3, three bus bars 4 and a wire inlet cable 5 electrically connected with the three bus bars 4, wherein the integrated capacitors 3 comprise a housing 31, the housing 31 comprises a first shell 311 and three second shells 312, the first shell 311 has a rectangular parallelepiped shape, i.e. the length dimension and the height dimension of the first shell 311 are not greatly different, the width dimension is smaller, so that the first shell 311 is more suitable for the cabinet body 1, and a plurality of first shells 311 are conveniently disposed in the cabinet body 1, And a plurality of integrated capacitors 3 are conveniently arranged, so that the fineness of the voltage regulation compensation is improved, and the multistage voltage regulation compensation is facilitated. the first shell 311 comprises a top plate, a bottom plate, a first wide side plate, a second wide side plate, a first narrow side plate and a second narrow side plate, wherein the first wide side plate and the second wide side plate are oppositely arranged, the first narrow side plate and the second narrow side plate are oppositely arranged, a parallel capacitor group is arranged in the first shell 311 and comprises a first capacitor, a second capacitor and a third capacitor which are arranged along the length direction of the top plate, the inner space of the first shell 311 is reasonably utilized, and the arrangement of the first capacitor, the second capacitor and the third capacitor is facilitated. The three second shells 312 are all arranged on the top plate and are arranged along the length direction of the top plate, so that the length direction of the top plate is reasonably utilized, and the arrangement of the second shells 312 is more convenient. An intelligent control component is disposed in the second housing 312, and referring to fig. 4, the intelligent control component includes a reactor, an intelligent switch and a current transformer connected in series in sequence, and the intelligent control component integrates the reactor, the intelligent switch and the current transformer to form a control unit, so that the capacity of the single-group switching can be reduced to the minimum. The intelligent control components in the three second housings 312 are electrically connected to the first capacitor, the second capacitor and the third capacitor, respectively, and preferably, the positions of the three second housings 312 correspond to the positions of the three capacitors, so as to facilitate the arrangement of lines connecting the two capacitors. The intelligent switch comprises a control signal port, the control signal port is electrically connected with the controller, and the intelligent control component in the second shell 312 is used for reasonably controlling the parallel capacitor bank circuit in the first shell 311 so as to better realize multistage voltage regulation compensation. The plurality of integrated capacitors 3 are arranged at intervals along the width direction of the top plate, so that the space is reasonably utilized, and the heat dissipation effect is ensured. PT power supply box 2 sets up the one end in the range direction of integral type condenser 3, and whole structural layout is more reasonable, rational utilization cabinet body 1 inner space. Be provided with baffle 6 in the cabinet body 1, three generating lines 4 all hang and establish on baffle 6 to guarantee the reliable fixed of generating line 4, simultaneously, baffle 6 also can improve cabinet body 1's overall structure intensity to a certain extent, improves its anti extrusion and collision performance. Further, the bus bar 4 is hung on the partition plate 6 through an insulating terminal to improve safety performance. The three intelligent control components of the integrated capacitor 3 are respectively electrically connected with the three buses 4, and the extending direction of the buses 4 is consistent with the arrangement direction of the integrated capacitor 3, so that the arrangement of related circuits is convenient. In the transformer substation multi-stage voltage regulation compensation device, referring to fig. 1 and 2, by setting the first shell 311 into a more reasonable prolate square body shape, arranging the second shell 312 on the top plate along the length direction thereof, and arranging a plurality of integrated capacitors 3 at intervals along the width direction of the top plate, for example, setting 5 integrated capacitors 3, and simultaneously setting the PT power box 2 at one end of the integrated capacitors 3 in the arrangement direction, the internal structure of the cabinet 1 is more compact and reasonable, more integrated capacitors 3 can be accommodated, finer multi-stage voltage regulation compensation can be realized, and heat dissipation of electric components such as the integrated capacitors 3 and the PT power box 2 can be ensured, the use effect and the service life of the multi-stage voltage regulation compensation device of the transformer substation are better ensured; In addition, in this multistage voltage regulation compensation arrangement of transformer substation, the design of integral type condenser 3 adopts totally closed design to improve the security performance, avoid debris to fall to the potential safety hazard that the electrical component arouses, and as shown with reference to fig. 1, fig. 2 and fig. 4, the built-in 2 return circuits of integral type condenser 3 of preference, and wherein the primary loop includes reactor, intelligent switch, parallel capacitor in proper order, and the secondary loop includes detection CT travel switch and switching coil etc. and wherein the primary loop theory of operation is: after the multi-stage voltage regulation compensation device of the transformer substation is electrified, current is firstly subjected to suppression of inrush current and harmonic wave through a reactor, so that the burning loss of the device caused by the inrush current is protected, and overvoltage operation of a capacitor is prevented; The intelligent switch is linked with a state sampling contact switch to acquire a switch state, and the switch can default to be normally closed, and after the switch is closed, the contact is normally open; the sampling current CT is arranged before the intelligent switch is introduced into the capacitor, and a current signal of the sampling current CT is obtained so as to monitor the running state of the capacitor; wherein, the terminal defines: HZ+ and HZ-are control switch loops; ZT and COM are switching states; ia. Ib, ic and In are three-phase capacitance and single-phase operating current. the transformer substation multistage voltage regulating compensation device formed by the parallel capacitor bank, the intelligent control component and the like has the practical advantages of small grading, convenient installation, larger available space, convenient management and maintenance and the like, the built-in intelligent switch of the integrated capacitor 3 meets the requirement of frequent switching, so that technical guarantee is provided for the voltage quality fine management of the transformer substation, for example, in the 10kV transformer substation voltage multistage compensation device, the size of the cabinet body 1 is 2200mm x 2000mm x 1300mm, five integrated capacitors 3 of 200kV are arranged in the cabinet body 1, and the automation degree of the device is higher through the intelligent control component, The capacitance state, the operation parameters and the like of each integrated capacitor 3 can be monitored, remote control and management are extremely convenient to realize, and the requirements of the current intelligent power grid are better met.
Further, referring to fig. 1 and 2, the second housing 312 includes a transformer housing portion for accommodating a current transformer, where the transformer housing portion is adapted to the shape of the current transformer, so as to reduce the volume of the second housing 312, avoid unnecessary space occupation, and the axes of the corresponding transformer housing portions in the plurality of integrated capacitors 3 are collinear and parallel to the corresponding bus bars 4, so as to facilitate connection therebetween, facilitate arrangement of lines, make the lines more orderly, and reduce potential safety hazards caused by complex winding. Still further, three first electrical connection structures are disposed on the top plate of the first housing 311 and are electrically connected with the first capacitor, the second capacitor and the third capacitor, and each second housing 312 is provided with a second electrical connection structure, which is electrically connected with the intelligent control component, when the second housing 312 is disposed on the top plate of the first housing 311, the first electrical connection structure and the second electrical connection structure form an electrical connection, for example, the first electrical connection structure comprises a plug, the second electrical connection structure comprises a socket, and the connection of the plug and the socket is realized through the cooperation of the plug and the socket, so as to ensure the reliability of the intelligent control component in controlling the parallel capacitor in the first housing 311. Further, be provided with the outlet port on the second casing 312, the outlet port is connected with intelligent control subassembly electricity, the outlet port is connected with the busbar 4 electricity through spouting progressive fuse 7, busbar 4 centre gripping is between spouting female row and the fastening bolt of progressive fuse 7, on the one hand, can improve the reliability and the security that intelligent control subassembly is connected with the circuit in the second casing 312 through spouting progressive fuse 7, on the other hand, through the busbar 4 centre gripping between spouting female row and the fastening bolt of progressive fuse 7, make things convenient for the change of each electrical component in this position, the whole replacement when avoiding appearing damaging, a certain extent reduce cost.
Further, referring to fig. 1-3, the cabinet body 1 includes a frame 12, and a cabinet door 11, a back plate and two side plates connected to the frame 12, the opposite directions of the two side plates are consistent with the arrangement direction of the integrated capacitor 3, and a wire fixing structure 15 is arranged on one of the two side plates, so as to fix the incoming cable 5, and avoid potential safety hazards caused by movement of the incoming cable 5. Still further, another curb plate in the both sides board forms detachable connection with frame 12 to make things convenient for the dismantlement of this curb plate, make things convenient for the processing preparation of this cabinet body 1, simultaneously, when cabinet door 11 breaks down unable opening, also accessible dismantles this curb plate and carries out inside inspection. Preferably, the end of the bus 4 near the side plate is bent downwards to form a bending part 41, and the incoming cable 5 is electrically connected with the bending part 41, so that the connection between the incoming cable 5 and the bus 4 is facilitated, and the convenience and reliability of the connection between the incoming cable 5 and the bus 4 are improved. Preferably, a sliding rail (not shown in the figure) consistent with the extending direction of the bus bar 4 is arranged at the bottom of the cabinet body 1, and the integral capacitor 3 can slide along the sliding rail, so that the position of the integral capacitor 3 in the extending direction of the bus bar 4 can be conveniently adjusted, the integral capacitor 3 can be conveniently connected with the bus bar 4, in addition, the number of the integral capacitors 3 can be arranged at intervals between the integral capacitors 3 by adjusting, for example, the number of the integral capacitors 3 can be increased to improve the voltage regulating precision and the width, so that the adaptability of the transformer substation multi-stage voltage regulating compensation device can be improved.
Preferably, a first cross beam (not shown in the figure) and a second cross beam (not shown in the figure) which are connected with the two side plates are arranged in the cabinet body 1, so that the overall structural strength of the cabinet body 1 is improved, and the anti-extrusion performance of the cabinet body 1 is better ensured. The extending direction of the first cross beam and the extending direction of the second cross beam are consistent with the extending direction of the sliding rail, the first cross beam is located at the front side of the first shell 311, the second cross beam is located at the rear side of the first shell 311, as shown in reference to fig. 1 and 2, a first lug plate 3111 is arranged on the first narrow side plate, a second lug plate 3112 is arranged on the second narrow side plate, the integrated capacitor 3 is fixedly connected with the first cross beam through the first lug plate 3111 and is fixedly connected with the second cross beam through the second lug plate 3112, so that reliable fixing of the integrated capacitor 3 is achieved, potential safety hazards caused by random shaking of the integrated capacitor 3 are avoided, and further, the mode of the fixed connection is preferably detachable connection, so that replacement of the integrated capacitor 3 is facilitated.
Further, referring to fig. 1 to 3, the partition 6 divides the cabinet 1 into an upper accommodating chamber 13 and a lower accommodating chamber 14, the cabinet door 11 includes an upper cabinet door 111 for opening and closing the upper accommodating chamber 13 and a lower cabinet door 112 for opening and closing the lower accommodating chamber 14, the controller is disposed in the upper accommodating chamber 13, and an observation for observing the controller and a button or key for operating the controller are disposed on the upper cabinet door 111 so as to facilitate the observation and operation of the apparatus. PT power supply box 2, integral type condenser 3, generating line 4 and inlet wire cable 5 set up in holding intracavity 14 down, because the controller is more commonly used in other electrical components, with controller and other structure separately arrangement to set up divided cabinet door 11, can avoid dust or other debris to fall into the potential safety hazard that other electrical components caused, improve the security of this multistage voltage regulation compensation arrangement of transformer substation, also make things convenient for controlling and checking the controller more.
Still further, this multistage voltage regulation compensation arrangement of transformer substation still includes at least one concatenation cabinet, is provided with a plurality of integral type condenser 3 and three concatenation generating lines 4 in the concatenation cabinet, the arrangement direction of the integral type condenser 3 in the concatenation cabinet is unanimous with the arrangement direction of the integral type condenser 3 in the cabinet body 1, the concatenation cabinet splices with the cabinet body 1 at the open side of the cabinet body 1, three concatenation generating lines 4 are connected with three generating lines 4 electricity respectively, through addding the concatenation cabinet, further improve the adaptability of multistage voltage regulation compensation arrangement of transformer substation, make it can adapt to the finer regulation to bigger voltage, satisfy the needs of present smart power grids better.
Those skilled in the art will appreciate that the above-described preferred embodiments can be freely combined and stacked without conflict.
It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the invention, are intended to be included within the scope of the appended claims.
Claims (10)
1. The utility model provides a multistage voltage regulation compensation arrangement of transformer substation, its characterized in that includes the cabinet body, set up in the internal controller of cabinet, PT power supply box, a plurality of integral type condenser, three generating line and with three the inlet wire cable that the generating line electricity is connected, wherein, integral type condenser includes the shell, the shell includes first casing and three second casing, first casing is prolate square, including roof, bottom plate, the first wide curb plate of relative setting and the wide curb plate of second, the first narrow curb plate of relative setting and the narrow curb plate of second, be provided with parallelly connected capacitor group in the first casing, parallelly connected capacitor group includes along the first electric capacity, second electric capacity and the third electric capacity of the length direction arrangement setting of roof, three the second casing all sets up on the roof and along the length direction arrangement setting of roof, be provided with intelligent control subassembly in the second casing, intelligent control subassembly includes reactor, intelligent switch and current transformer in proper order, intelligent control subassembly in the three second casing respectively with first electric capacity, third electric capacity connect in series with the signal port;
the plurality of integrated capacitors are arranged at intervals along the width direction of the top plate, and the PT power supply box is arranged at one end of the integrated capacitors in the arrangement direction;
The intelligent control device comprises a cabinet body, wherein a baffle plate is arranged in the cabinet body, three buses are hung on the baffle plate, three intelligent control components of the integrated capacitor are respectively and electrically connected with the three buses, and the extending direction of the buses is consistent with the arrangement direction of the integrated capacitor;
Three first electric connection structures are arranged on the top plate of the first shell and are respectively and electrically connected with the first capacitor, the second capacitor and the third capacitor, a second electric connection structure is arranged on each second shell and is electrically connected with the intelligent control component, and when the second shell is arranged on the top plate of the first shell, the first electric connection structure and the second electric connection structure form electric connection;
the cabinet body comprises a frame, a cabinet door, a back plate and two side plates, wherein the cabinet door, the back plate and the two side plates are connected with the frame, the relative directions of the two side plates are consistent with the arrangement direction of the integrated capacitor, a wire fixing structure is arranged on one side plate of the two side plates and used for fixing the wire inlet cable, the end part, close to the one side plate, of the bus is bent downwards to form a bending part, and the wire inlet cable is electrically connected with the bending part.
2. The substation multilevel voltage regulation compensation device of claim 1, wherein the second housing comprises a transformer housing portion for housing the current transformer, the transformer housing portion being adapted to the shape of the current transformer, the axes of the respective transformer housing portions of the plurality of integral capacitors being collinear and parallel with the respective bus bars.
3. The substation multilevel voltage regulation compensation device of claim 1, wherein the first electrical connection structure comprises a plug and the second electrical connection structure comprises a socket.
4. The transformer substation multistage voltage regulation compensation device according to claim 1, wherein the bottom of the cabinet body is provided with a sliding rail consistent with the extending direction of the bus bar, and the integrated capacitor can slide along the sliding rail.
5. The transformer substation multistage voltage regulation compensation device according to claim 4, wherein a first beam and a second beam which are connected with two side plates are arranged in the cabinet body, the extending directions of the first beam and the second beam are consistent with the extending directions of the sliding rails, the first beam is positioned on the front side of the first shell, the second beam is positioned on the rear side of the first shell, a first lug plate is arranged on the first narrow side plate, a second lug plate is arranged on the second narrow side plate, and the integrated capacitor is fixedly connected with the first beam through the first lug plate and fixedly connected with the second beam through the second lug plate.
6. The multi-stage voltage regulation and compensation device of a transformer substation according to claim 1, wherein the partition plate divides the cabinet body into an upper accommodating cavity and a lower accommodating cavity, the cabinet door comprises an upper cabinet door for opening and closing the upper accommodating cavity and a lower cabinet door for opening and closing the lower accommodating cavity, the controller is arranged in the upper accommodating cavity, and the PT power box, the integrated capacitor, the bus bar and the incoming cable are arranged in the lower accommodating cavity.
7. The multi-stage voltage regulation compensation device of a substation of claim 1, wherein the other of the two side plates forms a detachable connection with the frame.
8. The multi-stage voltage regulation compensation device of a substation according to any one of claims 1 to 7, wherein an outlet port is provided on the second housing, the outlet port is electrically connected with the intelligent control assembly, the outlet port is electrically connected with the bus bar through a blown-by-blown fuse, and the bus bar is clamped between a bus bar of the blown-by-blown fuse and a fastening bolt.
9. The substation multilevel voltage regulation compensation device of any one of claims 1 to 7 wherein the bus bar is suspended from the separator via an insulated terminal.
10. The utility model provides a multistage voltage regulation compensation arrangement of transformer substation, its characterized in that includes the cabinet body, set up in the internal controller of cabinet, PT power supply box, a plurality of integral type condenser, three generating line and with three the inlet wire cable that the generating line electricity is connected, wherein, integral type condenser includes the shell, the shell includes first casing and three second casing, first casing is prolate square, including roof, bottom plate, the first wide curb plate of relative setting and the wide curb plate of second, the first narrow curb plate of relative setting and the narrow curb plate of second, be provided with parallelly connected capacitor group in the first casing, parallelly connected capacitor group includes along the first electric capacity, second electric capacity and the third electric capacity of the length direction arrangement setting of roof, three the second casing all sets up on the roof and along the length direction arrangement setting of roof, be provided with intelligent control subassembly in the second casing, intelligent control subassembly includes reactor, intelligent switch and current transformer in proper order, intelligent control subassembly in the three second casing respectively with first electric capacity, third electric capacity connect in series with the signal port;
the plurality of integrated capacitors are arranged at intervals along the width direction of the top plate, and the PT power supply box is arranged at one end of the integrated capacitors in the arrangement direction;
The intelligent control device comprises a cabinet body, wherein a baffle plate is arranged in the cabinet body, three buses are hung on the baffle plate, three intelligent control components of the integrated capacitor are respectively and electrically connected with the three buses, and the extending direction of the buses is consistent with the arrangement direction of the integrated capacitor; the partition plate divides the cabinet body into an upper accommodating cavity and a lower accommodating cavity;
The cabinet body comprises a frame, a cabinet door, a back plate and a side plate, wherein the cabinet door is connected with the frame, the back plate is arranged on one side of the side plate, the opposite side of the side plate is open, the end part, close to the side plate, of the bus is bent downwards to form a bending part, and the incoming cable is electrically connected with the bending part;
The device further comprises at least one splicing cabinet, a plurality of integrated capacitors and three splicing buses are arranged in the splicing cabinet, the arrangement direction of the integrated capacitors in the splicing cabinet is consistent with the arrangement direction of the integrated capacitors in the cabinet, the splicing cabinet is in the open side of the cabinet body and spliced with the cabinet body, and the three splicing buses are respectively and electrically connected with the three buses.
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| CN201911222190.0A CN110829213B (en) | 2019-12-03 | 2019-12-03 | Multi-stage voltage regulation compensation device of transformer substation |
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| CN210838527U (en) * | 2019-12-03 | 2020-06-23 | 国网江苏省电力有限公司常州供电分公司 | Multistage voltage regulation compensation arrangement of transformer substation |
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| CN202503206U (en) * | 2012-02-17 | 2012-10-24 | 山东达驰电气有限公司 | Compact box-type transformer station |
| CN204597266U (en) * | 2015-05-19 | 2015-08-26 | 浙宝电气(杭州)集团有限公司 | A kind of high-voltage capacitor compensation equipment |
| CN107465201A (en) * | 2017-10-12 | 2017-12-12 | 济南爱迪电气设备有限公司 | A kind of more subdivided capacitor formula High Voltage and Passive Automatic Compensation Devices of compact |
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| CN210838527U (en) * | 2019-12-03 | 2020-06-23 | 国网江苏省电力有限公司常州供电分公司 | Multistage voltage regulation compensation arrangement of transformer substation |
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