CN210577091U - Integrated intelligent substation platform and switch board thereof - Google Patents

Abstract

The utility model relates to the technical field of transformers, in particular to an integrated integrated intelligent transformer station and its power distribution cabinet. The integrated integrated intelligent transformer station includes a transformer and a power distribution cabinet. The power distribution cabinet includes a cabinet body, and a measurement control room and a capacitor are arranged in the cabinet. Room, incoming and outgoing line room, the capacitor room is set between the metering control room and the incoming and outgoing line room, the capacitor room is equipped with upper and lower layers of reactive power compensation smart capacitors, the incoming and outgoing line room is provided with an incoming line bus, and one end of the incoming bus is used to connect with the transformer. The transformers of the radio station are connected, and the other end extends into the incoming and outgoing wiring room, the bottom is provided with the wiring hole, and the incoming and outgoing wiring compartment is provided with the incoming line module. The control unit and metering unit in the power distribution are separated from the reactive power compensation smart capacitors in the capacitor room, which improves the safety performance of the power distribution cabinet and facilitates user operation. The problem of low safety factor for users caused by the compartment.

Description

An integrated intelligent substation and its power distribution cabinet

technical field

The utility model relates to the technical field of transformers, in particular to an integrated integrated intelligent transformer station and its power distribution cabinet.

Background technique

Rural power grids have the characteristics of large seasonal load fluctuations and low average loads, which are prone to problems such as excessive grid reactive power and excessive proportion of transformer no-load loss relative to transmission capacity. The Chinese utility model patent with the authorization announcement number CN204348496U and the authorization announcement date of 2015.05.20 discloses an intelligent on-load capacity regulating distribution transformer. Under the load condition, the connection mode of the transformer is automatically changed according to the change of the load, and the transformer is adjusted. For large or small capacity, it is suitable for places with large seasonal load or cyclical load changes. The distribution transformer includes transformers and on-load capacity tap-changers, intelligent monitoring units, low-voltage outlet bars, sub-compensation parallel capacitors, power distribution management terminals, etc. The supplementary shunt capacitor, the intelligent monitoring unit, and the power distribution management terminal are set in the same compartment. In actual use, the power distribution management terminal opens the cabinet door to operate, but because the compensatory parallel capacitor, the public supplementary shunt capacitor and the power distribution management terminal are the same. A compartment that poses a problem of unsafe use.

Utility model content

The purpose of this utility model is to provide a power distribution cabinet for a substation, so as to solve the problem of low safety factor for users in the current power distribution cabinet due to the fact that the capacitor and the metering control unit are arranged in the same compartment; The purpose of the invention is to provide an integrated intelligent substation to solve the problem of low safety factor of the current substation.

In order to achieve the above-mentioned purpose, the technical scheme of the power distribution cabinet for the substation of the present utility model: the power distribution cabinet for the substation includes:

The cabinet body is provided with a left and right metering control room, a capacitor room, and an incoming and outgoing line room. The capacitor room is set between the metering control room and the incoming and outgoing line room.

Metering control room: There is a control unit and a metering unit inside.

Capacitor room: There are reactive power compensation smart capacitors set up and down in layers.

Inlet and outlet room: There is an inlet busbar inside. One end of the inlet busbar is used to connect to the transformer of the substation, and the other end extends into the inlet and outlet room. The bottom is provided with an outlet hole, and the inlet and outlet room is provided with an inlet module.

The utility model has the beneficial effects of the power distribution cabinet for the transformer station: the power distribution cabinet is located on the front side of the transformer, which reduces the occupied space of the transformer station, and the metering control room, capacitor room, and incoming and outgoing line room arranged on the left and right in the power distribution make the control unit and the The metering unit is separated from the reactive power compensation smart capacitor in the capacitor room, which improves the safety performance of the power distribution cabinet and is convenient for users to operate. Low safety factor.

Further, in order to reduce the volume of the power distribution cabinet, the cabinet door of the metering control room faces the left or right side of the power distribution cabinet, the cabinet door of the capacitor room faces the front side of the power distribution cabinet, and the door of the incoming and outgoing wire room The cabinet door faces the front side of the distribution cabinet. Usually, the control unit in the metering control room has a larger width and a smaller thickness. The cabinet door of the metering control room is arranged on the side to reduce the volume of the power distribution cabinet.

Further, the top of the cabinet is provided with an incoming line protection room, and the incoming line protection room has a heat dissipation port facing the transformer side for the incoming busbar to pass through, and a busbar perforation communicated with the incoming and outgoing line room for the busbar to enter the incoming and outgoing line room. The perforation is provided with a seal that seals the incoming and outgoing wire compartments. The heat dissipation capacity of the cabinet is improved through the heat dissipation port. At the same time, the incoming wire protection compartment can provide primary protection for the incoming wire busbar and improve the protection level of the power distribution cabinet.

Further, the rear side plate of the cabinet body is used to provide a protective cover at the connection with the transformer of the substation, the front side cover of the protective cover is arranged at the heat dissipation port, and the rear side plate of the cabinet body is used to be spaced from the transformer. And the interval between the two is communicated with the heat dissipation port. The protective cover further improves the protection of the cabinet without affecting the heat dissipation.

Further, a part of the incoming line protection room is embedded in the incoming and outgoing line room, and a part is embedded in the capacitor room. It can improve the heat transfer efficiency between the incoming line protection room, the capacitor room and the incoming and outgoing line room, thereby speeding up the heat dissipation.

Further, the capacitor room is provided with a capacitor bracket, the capacitor bracket is detachably fixed in the power distribution cabinet, and each reactive power compensation smart capacitor is installed on the capacitor bracket. It is convenient to disassemble and assemble the reactive power compensation smart capacitor.

Further, a closed busbar connected to the incoming busbar is arranged in the incoming and outgoing line room, the closed busbar extends in the left and right directions, the closed busbar is provided with a hanging structure for hanging the power supply element, and the incoming line module is hung on the closed busbar. It is convenient for the installation and maintenance of electrical components.

In order to achieve the above-mentioned purpose, the technical scheme of the integrated intelligent substation of the present utility model is:

The transformer station includes: transformer,

Power distribution cabinet: on the front side of the transformer,

The power distribution cabinet includes a cabinet. The cabinet is provided with a left and right metering control room, a capacitor room, and an incoming and outgoing line room. The capacitor room is set between the metering control room and the incoming and outgoing line room.

Metering control room: There is a control unit and a metering unit inside.

Capacitor room: There are reactive power compensation smart capacitors set up and down in layers.

Incoming and outgoing line room: an incoming line busbar is set inside, one end of the incoming line busbar is connected to the transformer, and the other end extends into the incoming and outgoing line room.

The utility model has the beneficial effects of the integrated intelligent substation: the power distribution cabinet is located on the front side of the transformer, which reduces the occupied space of the substation; And the metering unit is separated from the reactive power compensation smart capacitor in the capacitor room, which improves the safety performance of the power distribution cabinet and is convenient for users to operate. Use problems with a low safety factor.

Further, in order to reduce the volume of the power distribution cabinet, the cabinet door of the metering control room faces the left or right side of the power distribution cabinet, the cabinet door of the capacitor room faces the front side of the power distribution cabinet, and the door of the incoming and outgoing wire room The cabinet door faces the front side of the distribution cabinet. Usually, the control unit in the metering control room has a larger width and a smaller thickness. The cabinet door of the metering control room is arranged on the side to reduce the volume of the power distribution cabinet.

Further, the top of the cabinet is provided with an incoming line protection room, and the incoming line protection room has a heat dissipation port facing the transformer side for the incoming busbar to pass through, and a busbar perforation communicated with the incoming and outgoing line room for the busbar to enter the incoming and outgoing line room. The perforation is provided with a seal that seals the incoming and outgoing wire compartments. The heat dissipation capacity of the cabinet is improved through the heat dissipation port. At the same time, the incoming wire protection compartment can provide primary protection for the incoming wire busbar and improve the protection level of the power distribution cabinet.

Further, a protective cover is provided at the connection between the rear side plate of the cabinet body and the transformer, the front side cover of the protective cover is arranged at the heat dissipation port, the transformer and the rear side plate of the cabinet body are arranged at intervals, and the space between the two is arranged. The interval is communicated with the heat dissipation port. The protective cover further improves the protection of the cabinet without affecting the heat dissipation.

Further, a part of the incoming line protection room is embedded in the incoming and outgoing line room, and a part is embedded in the capacitor room. It can improve the heat transfer efficiency between the incoming line protection room, the capacitor room and the incoming and outgoing line room, thereby speeding up the heat dissipation.

Further, the capacitor room is provided with a capacitor bracket, the capacitor bracket is detachably fixed in the power distribution cabinet, and each reactive power compensation smart capacitor is installed on the capacitor bracket. It is convenient to disassemble and assemble the reactive power compensation smart capacitor.

Further, a closed busbar connected to the incoming busbar is arranged in the incoming and outgoing line room, the closed busbar extends in the left and right directions, the closed busbar is provided with a hanging structure for hanging the power supply element, and the incoming line module is hung on the closed busbar. It is convenient for the installation and maintenance of electrical components.

Description of drawings

Fig. 1 is the structural representation of the specific embodiment of the integrated intelligent substation of the present utility model;

Figure 2 is a schematic view of Figure 1 after the front side cabinet door is hidden;

Fig. 3 is the front view of hiding the front side cabinet door in the specific embodiment of the integrated intelligent substation of the present utility model;

Fig. 4 is the structural schematic diagram after hiding the front side cabinet door and the top cover plate in the specific embodiment of the integrated intelligent substation of the present invention;

5 is a schematic diagram of the assembly structure of the reactive power compensation smart capacitor and the capacitor bracket in the specific embodiment of the integrated intelligent substation of the present invention;

Fig. 6 is the assembly structure diagram of the closed busbar and the incoming line module in the specific embodiment of the integrated intelligent substation of the present invention;

Fig. 7 is the partial structure schematic diagram of the power distribution cabinet in the specific embodiment of the integrated intelligent substation of the present invention;

8 is a schematic diagram of the assembly structure of the incoming busbar and the partition in the specific embodiment of the integrated intelligent substation of the present invention;

9 is a schematic structural diagram of the partition between the incoming line protection room and the incoming and outgoing line room in the specific embodiment of the integrated intelligent substation of the present invention;

Fig. 10 is the axonometric view of the specific embodiment of the integrated intelligent substation of the present invention;

In the figure: 1. Transformer; 2. Power distribution cabinet; 20. Cabinet body; 201. Interval; 21. Measurement control room; 211. Cabinet door; 22. Capacitor room; , Limit folding; 23, Inlet and outlet room; 231, Heat dissipation hole; 24, Inlet protection room; 241, Heat dissipation port; 242, Busbar perforation; 243, Composite insulator; 244, Sealing ring; , outlet hole; 26, protective cover; 3, incoming bus; 31, zero-phase incoming bus; 4, closed bus; 41, hook; 5, reactive power compensation smart capacitor; 6, capacitor bracket; 61, base; 62 , support column; 621, left support column; 622, right support column; 63, mounting plate; 64, controller mounting seat; 7, capacitor controller; 8, equal-zero commutation switch; 9, incoming line module.

Detailed ways

The embodiments of the present utility model will be further described below with reference to the accompanying drawings.

A specific embodiment of the integrated intelligent substation of the present invention, as shown in FIGS. 1 to 4 , the integrated intelligent substation includes a transformer 1 and a power distribution cabinet 2 arranged on the front side of the transformer 1. The power distribution cabinet 2 It includes a cabinet body 20. The cabinet body 20 is provided with a metering control room 21, a capacitor room 22, an incoming and outgoing line room 23, and an incoming line protection room 24. The metering control room 21, the capacitor room 22, and the incoming and outgoing line room 23 are arranged on the left and right sides. The capacitor room 22 Set between the metering control room 21 and the incoming and outgoing line room 23, the incoming line protection room 24 is set in the middle of the top of the cabinet 20, a part of the incoming line protection room 24 is embedded in the incoming and outgoing line room 23, and a part is embedded in the capacitor room 22 Inside. The incoming wire protection chamber 24 is separated from the capacitor chamber 22 and the incoming and outgoing wire chamber 23 by a partition. The incoming line protection room 24 is located in the middle position in the left and right direction of the cabinet body 20 , corresponding to the front and rear positions of the low-voltage outgoing lines of the transformer 1 . In other embodiments, the position of the incoming line protection room can be changed according to the position of the low-voltage outgoing line of the transformer, for example, it can be set on the right or left side of the cabinet. Of course, in other embodiments, the incoming line protection room The line room is arranged up and down, and the front side wall of the line entry protection room is set on the front side panel of the cabinet. In this embodiment, the partition between the capacitor chamber 22 and the incoming and outgoing wire chamber 23 is used to install electrical components, and does not seal and isolate the two chambers. In other embodiments, the two compartments can also be sealed and isolated as required.

In this embodiment, as shown in FIG. 7 , the incoming line protection room 24 is used to protect the incoming line bus 3, and the rear side wall of the incoming line protection room 24 is arranged on the rear side panel of the cabinet body 20. The top wall of 24 is arranged on the top plate of the cabinet body 20, which simplifies the internal structure of the cabinet. The rear side wall of the incoming line protection room 24 is provided with an opening. The opening is a heat dissipation port 241 communicating with the outside and used to dissipate the heat in the incoming line protection room 24. At the same time, the heat dissipation port 241 also allows the incoming line bus 3 to pass through. . The incoming busbar 3 connected to the low-voltage terminal of the transformer enters the incoming line protection room 24 through the heat dissipation port, and then extends into the incoming and outgoing line room 23. The size of the heat dissipation port 241 is larger than that of the incoming line busbar 3 to prevent the heat dissipation port from being blocked by the incoming line busbar. 3 blockage. In this embodiment, each incoming busbar shares a long-shaped heat dissipation port 241, which is convenient for processing.

As shown in FIG. 8 and FIG. 9 , the partition plate 245 between the incoming and outgoing wire compartment 23 and the incoming wire protective chamber 24 is provided with a busbar perforation 242 for each phase busbar to pass through, and each busbar perforation 242 is provided with a sealing ring 244. It is ensured that the contaminants in the incoming wire protection chamber 24 do not enter the incoming and outgoing wire chamber 23 and the capacitor chamber 22 . By setting the incoming line protection room 24, the stability of the power distribution cabinet 2 and the transformer 1 during transportation is ensured, and at the same time, through the primary protection function of the incoming line protection room 24, it can play a certain role in preventing moisture, flying insects, dust and other sundries to a certain extent. The blocking effect ensures the sealing protection level of the power distribution cabinet. Since the fan power in the power distribution cabinet has specified requirements, in order to improve the heat dissipation efficiency of the power distribution cabinet, the incoming line protection room 24 in this embodiment performs preliminary protection for the incoming line busbar, and can dissipate heat through the incoming line protection room. The heat in the incoming and outgoing line room 23 and the capacitor room can be transferred to the incoming line protection room 24 through the heat dissipation port 241 and dissipated through the heat dissipation port 241, which improves the heat dissipation area of the cabinet. It can be directly discharged through the heat dissipation port 241 . The sealing ring set in the busbar perforation of the incoming line protection room ensures the sealing level of the cabinet, and the incoming line protection room also prevents the sealing ring from being directly exposed to the outside of the power distribution cabinet, which prolongs the life of the seal and reduces the impact on the seal. material requirements. In other embodiments, according to actual needs, the incoming line protection room can also be eliminated, and the incoming line busbar sealing ring is directly provided on the rear side plate of the cabinet to protect the incoming line busbar. The sealing ring in this embodiment forms a sealing member for sealing the incoming and outgoing wire compartments in the bus bar perforation. In Figure 8, only the A-phase incoming busbar, the B-phase incoming busbar, and the C-phase incoming busbar are shown. As shown in Figures 3 and 4, the zero-phase incoming busbar 31 passes through the incoming incoming and outgoing wires from the bottom of the incoming protection room Room 23, the partition at the bottom of the incoming line protection compartment 24 is provided with a busbar perforation for the zero-phase incoming busbar to pass through, and a sealing ring is also arranged in the busbar perforation.

In this embodiment, the incoming bus bar 3 is fixed in the incoming protection room 24 by the composite insulator 243, the composite insulator 243 is fixed on the bottom wall of the incoming protection compartment 24, and the incoming bus 3 is fixed on the top of the composite insulator 243 by bolts. The incoming bus bar 3 is electrically connected to the outgoing terminal of the transformer through a copper braid. Compared with fixing the incoming busbar 3 by way of a porcelain bottle, the incoming busbar 3 in this embodiment can have a certain movement margin, which solves the problem of the porcelain bottle being broken due to the busbar pulling the porcelain bottle. In other embodiments, in the case of good operating conditions, a porcelain bottle may also be used to fix the incoming busbar.

The current design standards for transformers require that the three-phase lines on the low-voltage side be A-phase, B-phase, and C-phase from left to right, while the power distribution cabinet requires C-phase, B-phase, and A-phase from left to right, as shown in Figure 4 As shown, the incoming line protection room 24 is provided with an incoming line bus 3, one end of the incoming line bus 3 is connected to the transformer 1, and the other end extends out of the incoming line protective room 24 to connect with the bus in the incoming and outgoing line room 23, and the incoming line bus 3 In the incoming line protection room 24, the order from left to right is A phase, B phase, C phase three-phase, after entering the incoming and outgoing line room 23, from left to right are C phase, B phase, A phase, the incoming busbar 3 The specific transposition manner and structure are in the prior art, and will not be described in detail here.

As shown in FIG. 10 , the rear side plate of the cabinet 20 is used for connecting the transformer with a protective cover 26 , the lower side and the front side of the protective cover 26 are both open, and the front side cover of the protective cover 26 is provided at the heat dissipation port 241 The lower side is covered at the outlet end of the transformer. A spacer 201 is arranged before and after the transformer and the rear side plate of the cabinet, and the spacer 201 communicates with the heat dissipation port 241 to ensure that the heat dissipation port 241 communicates with the outside world. The incoming busbar 3 can be better protected by the protective cover 26 . In other embodiments, the transformer may not be spaced from the power distribution cabinet, and in this case, the heat dissipation port relies on the heat dissipation holes on the protective cover to dissipate heat.

A closed bus bar 4 is arranged in the incoming and outgoing wire room 23 , and the closed bus bar 4 extends in the left and right directions. The closed bus bar 4 is a bus bar with an insulating layer commonly used in the prior art, which can reduce the spacing between the three-phase bus bars in the closed bus bar 4, and the electrical components connected to the closed bus bar 4 are all hung on the closed bus bar 4, which is convenient component installation. In this embodiment, an equal-zero commutation switch 8 and an incoming line module 9 are hung on the closed bus bar 4, and the closed bus bar is located at the rear side of the equal-to-zero commutation switch 8 and the incoming line module 9, and the specific hanging structure is also existing. Technology, the closed bus bar 4 is provided with a hanging hole. As shown in Figure 6, a conductive hook 41 is set on the element that needs to be connected to the closed bus bar 4, and is electrically connected to the closed bus bar 4 through the conductive hook 41. Fixed position. In other embodiments, the busbars entering and exiting the compartment may not be closed busbars, and in this case, the structure of the busbars connected to the electrical components in the entry/exit compartment is the same as that of the incoming busbar.

Below the closed bus bar 4 is a space for accommodating outgoing cables. As shown in FIG. 2 , an outlet hole 25 is provided at the bottom of the incoming and outgoing wire compartment 23 , and the outgoing cable enters the incoming and outgoing wire compartment 23 through the outgoing hole 25 and is connected to the corresponding electrical components. The incoming and outgoing wire compartment 23 generates a large amount of heat, and the incoming and outgoing wire compartment 23 is located on the side of the capacitor compartment 22, which is also conducive to heat dissipation. At the same time, in order to ensure the heat dissipation effect, the side wall of the incoming and outgoing wire compartment 23 away from the capacitor compartment 22 is provided with heat dissipation holes 231. Of course, a fan can also be arranged on the side wall to improve the heat exchange efficiency.

In this embodiment, the capacitor chamber 22 is provided with reactive power compensation smart capacitors 5 arranged in layers up and down. The reactive power compensation smart capacitors 5 are small in size and convenient for installation. In order to further improve the efficiency of installation and maintenance, in this embodiment, a capacitor bracket 6 is provided in the capacitor chamber 22, each reactive power compensation smart capacitor 5 is installed on the capacitor bracket 6 in layers, and the capacitor bracket 6 is detachably fixed in the power distribution cabinet 2, When in use, the capacitor bracket 6 can be moved out of the cabinet 20 as a whole. After installation and maintenance, the connection between the reactive power compensation smart capacitors 5 is externally connected to the cabinet 20, and then installed in the capacitor room 22 as a whole. Of course, in other embodiments, the reactive power compensation smart capacitor can also be directly fixed in the cabinet. When maintenance is required, the reactive power compensation smart capacitor is directly removed from the cabinet, but here the wiring between the reactive power compensation smart capacitors It is cumbersome and the installation efficiency is low.

As shown in FIG. 5 , the capacitor bracket 6 is a frame structure, including a base 61 and four support columns 62 fixed on the base 61 . The capacitor bracket 6 also includes a mounting plate 63 layered up and down with the base 61 , and the same layer of reactive power compensation The smart capacitors 5 are arranged left and right, wherein the number of upper reactive power compensation smart capacitors 5 is smaller than the number of lower reactive power compensation smart capacitors. Specifically, two upper reactive power compensation smart capacitors 5 are provided, and three lower reactive power compensation smart capacitors 5 are provided.

Three of the reactive power compensation smart capacitors 5 are fixed on the base 61 , and the other two reactive power compensation smart capacitors 5 are fixed on the top mounting plate 63 . In order to reduce the occupied space of the capacitor bracket 6 as much as possible, in this embodiment, two support columns 62 are fixed on the left side of the base 61 , and the other two support columns 62 are arranged on the base 61 in the two reactive power compensation smart capacitors 5 The position between the left support column 62 is defined as the left support column 621, the position between the two reactive power compensation smart capacitors 5 is the right support column 622, and the distance between the left support column 621 and the right support column 622 Meet the installation requirements of two reactive power compensation smart capacitors 5 . The two right support columns 622 are fixed to the right side of the mounting plate 63, and the top extends to the top of the mounting plate 63, and a controller mounting seat 64 for mounting the capacitor controller 7 is provided on the right support column 622. The capacitor controller 7 is mounted on the controller mount 64. This design can not only ensure the fixing strength of the top mounting plate 63 and meet the installation requirements of the capacitor, but also the connection part between the right support column 622 and the base 61 is located between the two capacitors. The right support column 622 is disposed on the right side of the base 61 , which reduces the space occupied by the right support column 622 . In addition, the space on the right side of the top of the right support column 622 is used for installing the capacitor controller 7, and the space in the capacitor chamber 22 is fully utilized, so that the structure of the capacitor chamber 22 is compact. In other embodiments, the structure of the capacitor bracket may be in other forms, such as a box-type structure. In other embodiments, the base and the mounting plate may also be replaced by fixed cross bars.

In order to further improve the installation efficiency of the capacitor, as shown in FIG. 5 , the capacitor chamber 22 in this embodiment is provided with a sliding seat which is slidably fitted into the capacitor chamber 22 when the capacitor bracket 6 is installed in a sliding fit with the base 61 of the capacitor bracket 6 . 221, the sliding seat 221 is provided with an L-shaped limit plate 222 for limiting the left and right positions of the capacitor bracket 6, and the top of the vertical part of the limit plate 222 is provided with a limit edge 223 for upper and lower limit of the capacitor support. , in order to make the installation of the capacitor bracket 6 easy, in this embodiment, the limit flange 223 is only provided on the rear half of the limit plate 222, and the front half is not provided with the limit flange, which is convenient for the capacitor bracket 6 to be mounted on the sliding seat 221. On, after the capacitor bracket 6 is slid to the setting, the capacitor bracket 6 is fixed on the sliding seat 221 by bolts.

The limit folding edge forms an upper stop structure that cooperates with the upper and lower stops of the capacitor bracket to restrict the capacitor bracket from being separated from the bracket installation slide rail. In other embodiments, the upper stop structure may also be a stop pin fixed on the limit plate, The stopper, of course, the upper stopper structure can also be arranged on the support column. The limit plate forms a horizontal limit structure that cooperates with the left and right direction of the capacitor bracket to limit the left and right movement of the capacitor bracket. The capacitor bracket is arranged in the limit groove, and the capacitor bracket can also be provided with a chute for sliding cooperation with the front and rear guides of the sliding seat, and the sliding seat is provided with a sliding rail matched with the sliding groove. In this embodiment, the sliding seat and the limiting plate together form a bracket mounting slide rail that can slide relative to the capacitor bracket before the capacitor bracket is fixed, and the support bracket mounting slide rail faces the capacitor disassembly and assembly cabinet on the cabinet body for disassembling and assembling capacitors. The door extends, and in other embodiments, the bracket mounting slide rails may also be two rails fixed in the cabinet at left and right intervals.

In this embodiment, the metering control room 21 is provided with an intelligent distribution transformer terminal, a user concentrator, an intelligent multi-function meter, and a GPRS remote transmission module, wherein the intelligent multi-function meter forms a metering unit in the metering controller, and the intelligent distribution transformer The terminal forms a control unit, which can be optionally installed in the metering control room according to the actual needs of the metering unit, the type and quantity of the control unit.

As shown in FIG. 4 , in this embodiment, the cabinet door 211 corresponding to the metering control room 21 faces the left side of the power distribution cabinet 2 . The width and thickness of the control modules in the metering control room 21 are relatively large. The cabinet door 211 is arranged on the side of the power distribution cabinet 2 to reduce the volume of the power distribution cabinet 2 . In other embodiments, the cabinet door corresponding to the metering control room can also be set on the right side. At this time, the left support column is located between the two lower capacitors, and the capacitor controller for controlling the capacitors is set above the lower capacitors and on the left support column. The side facing away from the upper layer capacitor. Of course, under the premise of not pursuing a small volume, the cabinet door can also be arranged on the front side of the cabinet body. The cabinet doors of the capacitor room 22 and the incoming and outgoing wire room 23 are arranged on the front side of the cabinet body, which is convenient for operation.

The transformer station of the utility model is an intelligent energy-saving integrated transformer station. The energy-saving three-phase distribution transformer with on-load voltage regulation and capacity regulation and the refined reactive power compensation capacitor device are arranged in the transformer station, which improves the intelligentization of the transformer station. Level.

The specific embodiment of the power distribution cabinet for the substation of the present invention, the structure of the power distribution cabinet for the substation in this embodiment is the same as the structure of the power distribution cabinet in the above-mentioned embodiment, and will not be repeated.

Claims (8)

1. Power distribution cabinet for substation, is characterized in that, comprises: The cabinet body is provided with a left and right metering control room, a capacitor room, and an incoming and outgoing line room. The capacitor room is set between the metering control room and the incoming and outgoing line room. Metering control room: There is a control unit and a metering unit inside. Capacitor room: There are reactive power compensation smart capacitors set up and down in layers. Inlet and outlet room: There is an inlet busbar, one end of the inlet busbar is used to connect with the transformer of the substation, the other end extends into the inlet and outlet room, and there is an outlet hole at the bottom. 2 . The power distribution cabinet for a substation according to claim 1 , wherein the cabinet door of the metering control room faces the left or right side of the power distribution cabinet, and the cabinet door of the capacitor room faces the power distribution cabinet. 3 . the front side of the power distribution cabinet, and the cabinet door of the cable room faces the front side of the power distribution cabinet. 3. The power distribution cabinet for a substation according to claim 1 or 2, wherein the top of the cabinet is provided with an incoming line protection room, and the rear side wall of the incoming line protection room is arranged on the rear side panel of the cabinet body On the rear side wall of the incoming line protection room, there is a heat dissipation port that communicates with the outside world. The heat dissipation port is used for the incoming line busbar to pass through and connect to the transformer. The busbar perforation entering the incoming and outgoing line room is provided with the heat dissipation port of the sealing element which separately seals the incoming and outgoing line room. 4 . The power distribution cabinet for a substation according to claim 3 , wherein the rear side plate of the cabinet is used to be provided with a protective cover at the connection with the transformer of the substation, and the front cover of the protective cover is provided with a protective cover. 5 . At the heat dissipation port, the rear side plate of the cabinet is used to be spaced apart from the transformer, and the space between the two is communicated with the heat dissipation port. 5 . The power distribution cabinet for a substation according to claim 3 , wherein a part of the incoming line protection room is embedded in the incoming and outgoing line room, and a part is embedded in the capacitor room. 6 . 6. The power distribution cabinet for a substation according to claim 1 or 2, wherein a capacitor bracket is provided in the capacitor chamber, the capacitor bracket is detachably fixed in the power distribution cabinet, and each reactive power compensation smart capacitor is installed on the capacitor bracket. 7. The power distribution cabinet for a substation according to claim 1 or 2, characterized in that, a closed busbar connected to the incoming busbar is arranged in the inlet and outlet chambers, the closed busbar extends in the left-right direction, and the closed busbar is provided with a supply The electrical components are mounted on the hanging structure, and the incoming line module is hung on the closed busbar. 8. An integrated intelligent substation, characterized in that it comprises a transformer and a power distribution cabinet, and the power distribution cabinet is the power distribution cabinet for a substation according to any one of claims 1-7.

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