A system integration cabinet

Abstract

A kind of system integration cabinet, including cabinet, metering compartment, incoming-outgoing line compartment and capacitor compensation compartment are equipped in cabinet, metering compartment is equipped with middle bulkhead, middle bulkhead divides metering compartment into front room and rear room, electric meter and joint terminal box are equipped in front room, incoming copper bar for connecting external transformer and metering transformer set on incoming copper bar are equipped in rear room;Incoming-outgoing line compartment is equipped with pull-out frame circuit breaker, the incoming end of frame circuit breaker is connected with the incoming copper bar passing through metering transformer, a plurality of molded case circuit breakers are equipped in incoming-outgoing line compartment and below frame circuit breaker, the incoming end of a plurality of molded case circuit breakers is connected with the outgoing end of frame circuit breaker by first bus bar;Knife switch is equipped in capacitor compensation compartment, the incoming end of knife switch is connected with first bus bar by cable.This integrated cabinet has the advantages of small floor area, low total cost etc.

Description

Technical Field

[0001] This invention relates to the field of electrical cabinet design technology, and in particular to a system integration cabinet. Background Technology

[0002] In low-voltage power distribution systems, multiple independent cabinets are typically required, such as metering cabinets, low-voltage distribution cabinets, and capacitor compensation cabinets, to perform functions such as energy metering, power distribution, and reactive power compensation. The metering cabinet houses electricity meters and metering transformers for measuring the output energy from the low-voltage side of the transformer; the low-voltage distribution cabinet houses frame circuit breakers and several molded case circuit breakers for power distribution and protection of downstream circuits; and the capacitor compensation cabinet houses capacitor banks and switching control components for reactive power compensation to improve the power factor.

[0003] However, the aforementioned functional cabinets are usually arranged independently, and each cabinet needs to be electrically connected with the others via copper busbars or cables. The parallel installation of multiple independent cabinets occupies a large area of ​​the power distribution room, increasing the cost of civil engineering investment. The connecting copper busbars and cables between the cabinets have long paths, which not only increases the amount of materials used and line losses, but also makes the on-site installation and wiring work more extensive and the commissioning cycle longer. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a system integration cabinet to solve the technical problems in existing low-voltage power distribution systems that require multiple cabinets with different functions, resulting in large actual floor space, long installation time, and low maintenance efficiency for subsequent inspection and troubleshooting.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0006] A system integration cabinet includes a cabinet body. The cabinet body houses a metering compartment, an incoming / outgoing line compartment, and a capacitor compensation compartment. The metering compartment is located above the incoming / outgoing line compartment, and the capacitor compensation compartment is located on one side of the metering compartment and the incoming / outgoing line compartment. The metering compartment has a central partition dividing it into a front compartment and a rear compartment. The front compartment houses an electricity meter and a junction box, while the rear compartment houses an incoming copper busbar for connecting to an external transformer and a metering transformer mounted on the incoming copper busbar. The incoming / outgoing line compartment... The room is equipped with a withdrawable frame circuit breaker. The incoming terminal of the frame circuit breaker is connected to the incoming copper busbar passing through the metering transformer. Several molded case circuit breakers are installed in the inlet / outlet compartment below the frame circuit breaker. The incoming terminals of the molded case circuit breakers are connected to the outlet terminals of the frame circuit breaker through a first busbar. The capacitor compensation compartment is equipped with a knife switch and at least one set of compensation branches consisting of a fuse, a contactor, a thermal relay, and a capacitor connected in series. The incoming terminal of the knife switch is connected to the first busbar through a cable.

[0007] The present invention is further configured such that: a first conductive bus is provided between the incoming terminal of the frame circuit breaker and the incoming copper busbar passing through the metering transformer; a second conductive bus is provided on the outgoing terminal of the frame circuit breaker; a current transformer is provided on the second conductive busbar; and a first busbar on the incoming terminal of each molded case circuit breaker is connected to the second conductive busbar.

[0008] The present invention is further configured such that the output terminal of the knife switch is connected to the inlet terminal of the fuse of each compensation branch.

[0009] The present invention is further configured such that: a third conductive bus is provided on the output terminal of the knife switch, a second busbar connected to the third conductive busbar is provided on the input terminals of several fuses, a second current transformer is provided on the third conductive busbar, and the output terminals of several fuses respectively form multiple sets of compensation branches with corresponding contactors, thermal relays and capacitors.

[0010] The invention is further configured such that: a detection port is provided on the partition plate, and a lockable switch door is hinged on the partition plate at the opening of the detection port, and the electricity meter and the combined junction box are both installed on the switch door.

[0011] The invention is further configured such that: a lockable front upper door is hinged to the cabinet and located in the metering compartment, and the front upper door is provided with an observation window for observing the electricity meter.

[0012] The invention is further configured such that: a lockable lower front door is hinged to the cabinet at the inlet / outlet compartment, and an operation port for the corresponding frame circuit breaker operation panel is opened on the lower front door.

[0013] The present invention is further configured such that: an ammeter, an indicator light, a selector switch, a voltmeter and a temperature controller are installed on the lower front door.

[0014] The invention is further configured such that: a side upper door and a side lower door are hinged on the cabinet and located at the capacitor compensation compartment; the side upper door is equipped with an ammeter, an energy meter, a reactive power compensation controller and a changeover switch; and the side lower door is equipped with an indicator light.

[0015] Compared to the beneficial effects achieved by existing technologies:

[0016] This application integrates the metering compartment, the incoming and outgoing line compartment, and the capacitor compensation compartment into the same cabinet and distributes them compactly along the height and width of the cabinet. Compared with the traditional solution where the high voltage cabinet, transformer, low voltage incoming line cabinet, outgoing line cabinet, and capacitor compensation cabinet are scattered and independently arranged, this significantly reduces the number of equipment cabinets and the floor space, and significantly reduces the overall cost and the on-site installation and commissioning cycle.

[0017] The metering compartment is divided into a front compartment and a rear compartment by a partition. The electricity meter and the combined junction box are located in the front compartment, while the incoming copper busbar and metering transformer used to connect to the external transformer are located in the rear compartment. This allows the metering circuit and the incoming circuit to be spatially isolated from each other, effectively preventing unauthorized personnel from accessing the metering circuit. This meets the power supply department's management requirements for metering devices to prevent electricity theft and to be independently sealed. At the same time, the incoming copper busbar is directly connected to the external transformer and the metering transformer is mounted on the incoming copper busbar, resulting in a short metering sampling path and high accuracy, reducing errors and potential faults caused by intermediate connection links.

[0018] In the incoming and outgoing line compartment, the vertical layout allows electrical energy to be distributed from the frame circuit breaker downwards through the first busbar to the outgoing circuits of each molded case circuit breaker. The current path is clear and the layers are distinct. When the withdrawable frame circuit breaker is in the withdrawable position, a clearly visible isolation gap is formed between its incoming end and the incoming copper busbar. The frame circuit breaker simultaneously undertakes the dual functions of circuit protection and maintenance isolation, eliminating the need for additional isolating switches, simplifying the main circuit structure, reducing fault points, and improving power supply reliability.

[0019] The capacitor compensation compartment is independently located on one side of the metering compartment and the incoming / outgoing line compartment. The incoming terminal of the knife switch is connected to the first busbar via a cable. This layout spatially separates the capacitor compensation circuit from the main incoming / outgoing line circuit. At the same time, the knife switch draws power from the cable, so the location of the capacitor compensation compartment is not restricted by the direction of the main busbar. The wiring inside the cabinet is more flexible. When it is necessary to repair or replace the capacitor compensation circuit, electrical isolation can be achieved simply by disconnecting the knife switch, without affecting the normal power supply of the main circuit in the incoming / outgoing line compartment. This improves maintenance efficiency and operational safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram showing the internal component installation and distribution in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram showing the installation distribution of internal components from another perspective in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the electrical connection between the present invention and the transformer.

[0024] In the above attached diagram: 1. Cabinet; 2. Metering compartment; 3. Incoming and outgoing line compartment; 4. Capacitor compensation compartment; 5. Middle partition; 6. Electricity meter; 7. Junction box; 8. Incoming copper busbar; 9. Metering transformer; 10. Frame circuit breaker; 11. First conductor busbar; 12. Molded case circuit breaker; 13. Second conductor busbar; 14. Current transformer one; 15. First busbar; 16. Knife switch; 17. Fuse; 18. Contactor; 19. Thermal relay; 20. Capacitor; 21. 21. Detection port; 22. Door switch; 23. Third busbar; 24. Second busbar; 25. Current transformer II; 26. Front upper door; 27. Observation window; 28. Front lower door; 29. ​​Operation port; 30. Ammeter I; 31. Indicator light I; 32. Changeover switch I; 33. Voltmeter; 34. Temperature controller; 35. Side upper door; 36. Side lower door; 37. Ammeter II; 38. Energy meter; 39. Reactive power compensation controller; 40. Changeover switch II; 41. Indicator light II. Detailed Implementation

[0025] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Example:

[0027] Reference Figure 1 , Figure 3 and Figure 4 This application discloses a system integration cabinet, comprising a cabinet body 1. The cabinet body 1 contains a metering compartment 2, an incoming / outgoing line compartment 3, and a capacitor compensation compartment 4. The metering compartment 2 is located above the incoming / outgoing line compartment 3, and the capacitor compensation compartment 4 is located on one side of both the metering compartment 2 and the incoming / outgoing line compartment 3. This layout integrates the three major functional modules of metering, power distribution, and capacitor compensation into the same cabinet body 1. The metering compartment 2 is on top, the incoming / outgoing line compartment 3 is below, and the capacitor compensation compartment 4 is on the side. These three compartments are compactly distributed along the height and width of the cabinet body 1. Compared to the traditional approach where each functional compartment is dispersed and independently arranged, this significantly reduces the number of cabinet bodies 1 and the floor space occupied. Furthermore, the functional modules are spatially independent yet closely adjacent, minimizing the main circuit wiring path within the cabinet, reducing the amount of copper busbars and cables used, and lowering material costs and line losses.

[0028] like Figure 1 , Figure 2 and Figure 3As shown, the metering compartment 2 is equipped with a middle partition 5, which divides the metering compartment 2 into a front compartment and a rear compartment. The front compartment contains an electricity meter 6 and a junction box 7. A detection port 21 is opened on the middle partition 5, and a lockable switch door 22 is hinged on the middle partition 5 at the opening of the detection port 21. The electricity meter 6 and the junction box 7 are both installed on the switch door 22. The rear compartment contains an incoming copper busbar 8 for connecting to an external transformer and a metering transformer 9 installed on the incoming copper busbar 8. The incoming copper busbar 8 can be accessed from the rear side of the cabinet 1 or from the side wall of the cabinet 1 away from the capacitor compensation compartment 4, which can be adjusted according to the actual installation. The rear compartment is equipped with a mounting beam, and the metering transformer 9 is fixedly installed on the mounting beam. The two ends of the mounting beam are fixedly connected to the left and right side walls of the metering compartment 2, respectively. After the incoming copper busbar 8 passes through the center hole of the metering transformer 9, it is fixed in the rear compartment by an insulating support. The secondary terminals of the combined junction box 7 are electrically connected to the secondary output terminal of the metering transformer 9 via wires. The voltage sampling terminal and current sampling terminal of the electricity meter 6 are electrically connected to the corresponding terminals of the combined junction box 7. This front and rear separation layout isolates the metering circuit and the incoming circuit in space, effectively preventing unauthorized personnel from accessing the metering circuit and meeting the power supply department's management requirements for anti-theft and independent sealing of metering devices. The electricity meter 6 and the combined junction box 7 are installed on a lockable switch door 22. When it is necessary to calibrate, replace, or maintain the electricity meter 6 or the combined junction box 7, it is only necessary to open the switch door 22 for operation, without having to enter the rear compartment to access the high-voltage incoming copper busbar 8, making operation safe and convenient. A lockable front upper door 26 is hinged on the cabinet 1 and located in the metering compartment 2. The front upper door 26 has an observation window 27 for observing the electricity meter 6.

[0029] like Figure 2 and Figure 3As shown, a withdrawable frame circuit breaker 10 is installed in the inlet / outlet compartment 3. A first conductive bar 11 is provided between the inlet terminal of the frame circuit breaker 10 and the inlet copper busbar 8 passing through the metering transformer 9. The upper end of the first conductive bar 11 is fixedly connected to the lower end of the inlet copper busbar 8 by bolts, and the lower end of the first conductive bar 11 is plugged into the inlet terminal of the frame circuit breaker 10. Several molded case circuit breakers 12 are installed in the inlet / outlet compartment 3 and below the frame circuit breaker 10. The inlet / outlet compartment 3 has several molded case circuit breakers 12. The line end is connected to the output terminal of the frame circuit breaker 10 through the first busbar 15. A second conductive busbar 13 is provided on the output terminal of the frame circuit breaker 10. The second conductive busbar 13 is fixed to the output terminal of the frame circuit breaker 10 by bolts. A current transformer 14 is provided on the second conductive busbar 13. The first busbar 15 on the input terminal of each molded case circuit breaker 12 is bolted to the lower end of the second conductive busbar 13 for fixation. The cable on the output terminal of the molded case circuit breaker 12 can be directly routed down into the cable trench. When the withdrawable frame circuit breaker 10 is in the withdrawn position, its input terminal is separated from the first conductive busbar 11, forming a clearly visible air isolation break. The frame circuit breaker 10 simultaneously performs the dual functions of circuit protection and maintenance isolation, eliminating the need for an additional isolating switch above the frame circuit breaker 10, simplifying the main circuit structure, reducing fault points, and minimizing cabinet space occupation. This type of withdrawable frame circuit breaker 10 is existing technology in the field, and its principle will not be elaborated upon further in this article. The first conductive bus 11, the second conductive bus 13, the third conductive bus 23, the first bus 15, and the second bus 24 mentioned above are all made of copper.

[0030] like Figure 1As shown, a lockable lower front door 28 is hinged to the cabinet 1 at the inlet / outlet compartment 3. The lower front door 28 has an operation port 29 corresponding to the operating panel of the frame circuit breaker 10. The operation port 29 on the lower front door 28 allows the operator to perform opening and closing operations on the frame circuit breaker 10 without opening the door. The lower front door 28 is equipped with an ammeter 30, an indicator light 31, a selector switch 32, a voltmeter 33, and a temperature controller 34. The sampling terminal of the ammeter 30 is electrically connected to the secondary output terminal of the current transformer 14 via a wire. The sampling terminal of the voltmeter 33 is electrically connected to the voltage sampling point of the second conductor bar 13 via a wire. The temperature sensor of the temperature controller 34 is located inside the inlet / outlet compartment 3. The control circuit of the indicator light 31 is connected in series in the auxiliary contact circuit of the frame circuit breaker 10. The selector switch 32 is connected in series in the measurement circuit of the voltmeter 33 for switching the measurement of different phase voltages. Ammeter 30 and voltmeter 33 can display the current, voltage and other operating parameters of the incoming and outgoing line circuits in real time. Temperature controller 34 can monitor the temperature status inside the incoming and outgoing line compartment 3 in real time and issue an alarm signal when the temperature exceeds the limit to prevent overheating faults caused by poor contact. Indicator light 31 intuitively reflects the opening and closing status of the frame circuit breaker 10, which is convenient for remote and local confirmation of equipment operation. Changeover switch 32 can switch the measurement phase of voltmeter 33, which is convenient for maintenance personnel to check whether the voltage is normal phase by phase, thus improving the efficiency of on-site commissioning and fault diagnosis.

[0031] like Figure 2 and Figure 3 As shown, the capacitor compensation compartment 4 is equipped with a knife switch 16 and at least one set of compensation branches consisting of a fuse 17, a contactor 18, a thermal relay 19, and a capacitor 20 connected in series. The input terminal of the knife switch 16 is connected to the first busbar 15 via a cable. The two ends of the cable are respectively crimped with terminals and then fastened to the input terminal of the knife switch 16 and the first busbar 15 with bolts. The output terminal of the knife switch 16 is equipped with a third conductive busbar 23, which is fixed to the output terminal of the knife switch 16 with bolts. The input terminals of several fuses 17 are equipped with second busbars 24 connected to the third conductive busbar 23. A current transformer 25 is sleeved on the third conductive busbar 23. The second busbar 24 is fixedly connected to the third conductive busbar 23 with bolts. The input terminals of each fuse 17 are fixed to the second busbar 24 with bolts. The output terminals of several fuses 17 are respectively connected to the corresponding contactors 18, thermal relays 19, and capacitors 20 to form multiple sets of compensation branches. That is, in each set of compensation branches, the output terminals of fuses 17 are electrically connected to the main contact input terminals of contactors 18 through wires, the main contact output terminals of contactors 18 are electrically connected to the input terminals of thermal relays 19 through wires, and the output terminals of thermal relays 19 are electrically connected to the terminals of capacitors 20 through wires.

[0032] like Figure 1As shown, a side upper door 35 and a side lower door 36 are hinged on the cabinet 1, located at the capacitor compensation compartment 4. The side upper door 35 houses an ammeter 37, an energy meter 38, a reactive power compensation controller 39, and a changeover switch 40. The side lower door 36 houses an indicator light 41. The sampling terminal of the ammeter 37 is electrically connected to the secondary output terminal of the current transformer 25 via a wire. The voltage and current sampling terminals of the energy meter 38 are electrically connected to the voltage bus of the capacitor compensation circuit and the secondary output terminal of the current transformer 25, respectively. The ammeter 37 and energy meter 38 can display the current and reactive power of the capacitor compensation circuit in real time, facilitating the evaluation of compensation effects and energy consumption. The current sampling terminal of the reactive power compensation controller 39 is electrically connected to the secondary output terminal of the current transformer 14, and its voltage sampling terminal is electrically connected to the voltage bus of the capacitor compensation circuit. The control output terminal is electrically connected to the coil circuit of the contactor 18 in each compensation branch. The reactive power compensation controller 39 automatically controls the switching of each compensation branch according to the system's reactive power demand, achieving precise power factor adjustment. The second changeover switch 40 is connected in parallel to the manual / automatic control circuit of the reactive power compensation controller 39, allowing maintenance personnel to manually control the switching of each capacitor 20 in debugging or emergency situations. The lower side door 36 is equipped with an indicator light 41, and the control circuit of the second indicator light 41 is connected in parallel to the auxiliary contact circuit of the contactor 18 in each compensation branch. The setting of the upper side door 35 and the lower side door 36 allows the capacitor compensation compartment 4 to have an independent observation and operation interface, facing different directions from the upper front door 26 of the metering compartment 2 and the lower front door 28 of the inlet / outlet line compartment 3. Maintenance personnel can operate different functional areas simultaneously without interference, significantly improving the convenience and safety of on-site maintenance.

[0033] Working principle:

[0034] according to Figure 4 The circuit diagram shows that during installation, the low-voltage side output power of the external transformer is introduced into the cabinet 1 through the incoming copper busbar 8, passes through the center hole of the metering transformer 9 fixed on the mounting beam, and is fixed in the rear compartment by the insulating support. The secondary output terminal of the metering transformer 9 is connected to the secondary terminal of the combined junction box 7 through the wire. The combined junction box 7 distributes the voltage and current signals to the electricity meter 6 installed on the lockable switch door 22. The lower end of the incoming copper busbar 8 is fixedly connected to the upper end of the first conductive busbar 11 by bolts. The lower end of the first conductive busbar 11 is plugged into the incoming terminal of the withdrawable frame circuit breaker 10.

[0035] Electrical energy enters the frame circuit breaker 10 via the first conductive busbar 11. When the frame circuit breaker 10 is closed, electrical energy flows from its output terminal to the first busbar 15 via the second conductive busbar 13, and is then distributed to the input terminals of each molded case circuit breaker 12. Each molded case circuit breaker 12 supplies power to the downstream load. A current transformer 14 is mounted on the second conductive busbar 13, and its secondary output terminal is connected to the sampling terminal of the ammeter 30 on the front lower door 28 via a wire. When the frame circuit breaker 10 is opened and swung out to the withdrawn position, its input terminal separates from the first conductive busbar 11 to form an air isolation break.

[0036] The electrical energy on the first busbar 15 is led through a cable to the input terminal of the knife switch 16 in the capacitor compensation compartment 4. The two ends of the cable are respectively crimped with terminals and then fastened with bolts to the input terminal of the knife switch 16 and the first busbar 15. After the knife switch 16 is closed, the electrical energy is distributed through the third conductive busbar 23 and the second busbar 24 on its output terminal to the input terminal of the fuse 17 of each compensation branch. In each compensation branch, the output terminal of the fuse 17 is electrically connected to the input terminal of the main contact of the contactor 18 through a wire. The output terminal of the main contact of the contactor 18 is electrically connected to the input terminal of the thermal relay 19 through a wire. The output terminal of the thermal relay 19 is electrically connected to the terminal of the capacitor 20 through a wire.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A system integration cabinet, characterized in that: Includes a cabinet (1), which has a metering compartment (2), an inlet / outlet cable compartment (3) and a capacitor compensation compartment (4) inside. The metering compartment (2) is located above the inlet / outlet cable compartment (3), and the capacitor compensation compartment (4) is located on one side of the metering compartment (2) and the inlet / outlet cable compartment (3). The metering compartment (2) is provided with a middle partition (5), which divides the metering compartment (2) into a front compartment and a rear compartment. The front compartment is provided with an electricity meter (6) and a combined junction box (7). The rear compartment is provided with an incoming copper busbar (8) for connecting to an external transformer and a metering transformer (9) installed on the incoming copper busbar (8). The incoming and outgoing line compartment (3) is equipped with a withdrawable frame circuit breaker (10). The incoming line terminal of the frame circuit breaker (10) is connected to the incoming copper busbar (8) passing through the metering transformer (9). The incoming and outgoing line compartment (3) and located below the frame circuit breaker (10) are equipped with a number of molded case circuit breakers (12). The incoming line terminals of the number of molded case circuit breakers (12) are connected to the outgoing line terminal of the frame circuit breaker (10) through the first busbar (15). The capacitor compensation compartment (4) is equipped with a knife switch (16) and at least one set of compensation branches consisting of a fuse (17), a contactor (18), a thermal relay (19) and a capacitor (20) connected in series. The incoming terminal of the knife switch (16) is connected to the first busbar (15) via a cable.

2. The system integration cabinet according to claim 1, characterized in that: A first conductive bus (11) is provided between the incoming terminal of the frame circuit breaker (10) and the incoming copper busbar (8) passing through the metering transformer (9). A second conductive busbar (13) is provided on the outgoing terminal of the frame circuit breaker (10). A current transformer (14) is provided on the second conductive busbar (13). The first busbar (15) on the incoming terminal of each molded case circuit breaker (12) is connected to the second conductive busbar (13).

3. A system integration cabinet according to claim 1, characterized in that: The output terminal of the knife switch (16) is connected to the input terminal of the fuse (17) of each compensation branch.

4. A system integration cabinet according to claim 3, characterized in that: The knife switch (16) has a third conductive bus (23) on its output terminal. The fuses (17) have a second busbar (24) connected to the third conductive busbar (23) on their input terminals. The third conductive busbar (23) has a current transformer (25). The fuses (17) have multiple compensation branches formed with the corresponding contactor (18), thermal relay (19), and capacitor (20).

5. A system integration cabinet according to claim 1, characterized in that: The partition plate (5) is provided with a detection port (21), and a lockable switch door (22) is hinged on the partition plate (5) at the opening of the detection port (21). The electricity meter (6) and the junction box (7) are both installed on the switch door (22).

6. A system integration cabinet according to claim 1, characterized in that: The cabinet (1) is hinged to a lockable upper front door (26) located in the metering compartment (2), and the upper front door (26) is provided with an observation window (27) for observing the electricity meter (6).

7. A system integration cabinet according to claim 1, characterized in that: The cabinet (1) is hinged to a lockable lower front door (28) located in the inlet / outlet compartment (3), and the lower front door (28) has an operating port (29) corresponding to the operating panel of the frame circuit breaker (10).

8. A system integration cabinet according to claim 7, characterized in that: The front lower door (28) is equipped with an ammeter (30), an indicator light (31), a selector switch (32), a voltmeter (33), and a temperature controller (34).

9. A system integration cabinet according to claim 1, characterized in that: The cabinet (1) is hinged to a side upper door (35) and a side lower door (36) at the capacitor compensation compartment (4). The side upper door (35) is equipped with an ammeter (37), an energy meter (38), a reactive power compensation controller (39), and a changeover switch (40). The side lower door (36) is equipped with an indicator light (41).

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