CN221487081U

CN221487081U - Automatic reactive compensation harmonic elimination capacitor box

Info

Publication number: CN221487081U
Application number: CN202323671522.8U
Authority: CN
Inventors: 柳胜雪; 王名光
Original assignee: Guangdong Zhongna Electric Group Co ltd
Current assignee: Guangdong Zhongna Electric Group Co ltd
Priority date: 2023-12-31
Filing date: 2023-12-31
Publication date: 2024-08-06
Anticipated expiration: 2033-12-31

Abstract

The utility model provides an automatic reactive compensation resonance elimination capacitor cabinet, wherein a main frame is formed by splicing outer upright posts and outer connection Liang Zongheng in a staggered manner, an operating mechanism beam and an outer frame front wide beam are connected between the outer upright posts at the front end, an outer frame rear wide beam is connected between the outer upright posts at the rear end, inner frame wide beams are respectively connected between the opposite inner upright posts and the opposite outer side beams, and the inner part of the main frame is divided into an isolation switch area, an insulator area, a contactor installation area, a capacitor installation area, a reactor installation area and a discharge coil installation area through the inner frame wide beams. The main frame of the utility model adopts a mode of detachable connection of bolts, so that the layout and the arrangement of components in the cabinet are more flexible, the space utilization rate is improved, and the utility model can reduce the loss of a transformer and a line, improve the power transmission capacity, inhibit the harmonic wave of a system and change the power utilization quality of the system according to the change condition of the power factor of a power grid, thereby achieving the effect of improving the economic benefit of the power transmission and transformation system.

Description

Automatic reactive compensation harmonic elimination capacitor box

Technical Field

The utility model relates to the technical field of capacitor cabinets, in particular to an automatic reactive compensation harmonic elimination capacitor cabinet.

Background

In the prior art, the capacitor cabinet is mainly manufactured by welding common sectional materials. The method comprises the following specific steps: firstly, cutting and processing the required section according to the design requirement; then, the sections are connected together in a welding mode to form a basic structure of the cabinet body; finally, spraying treatment is carried out on the surface of the cabinet body so as to obtain attractive appearance.

However, this manufacturing method has the following problems:

1. The internal structure is fixed: because of adopting the welding mode, the layout and the arrangement of components in the cabinet are limited. When components are to be added or replaced, the original welded frame must be cut off and welded again, which brings great inconvenience to the operation.

2. Welding position error: during the welding process, a worker may have a problem of a welding position error, resulting in a problem of a frame structure. In this case, the re-welding also needs to be cut off, increasing the production cost and time.

While the root cause of harmonic generation is due to nonlinear loading. When current flows through the load, the current and the applied voltage are not in linear relation, and a non-sinusoidal current is formed, so that harmonic waves are generated, and enterprises using nonlinear loads such as high-power current transformation and the like can generate serious harmonic waves. Such as arc furnaces, intermediate frequency furnaces, high frequency furnaces, frequency converters, etc.

Hazard of harmonics: the voltage and current waveforms of the power grid are distorted by the 1-order harmonic energy, and in addition, the harmonic voltage and harmonic current with the same frequency need to generate active power and reactive power of the same harmonic, so that the voltage of the power grid is reduced, the line loss is increased, and the capacity of the power grid is wasted; 2. reactive compensation equipment affecting a power supply system is easy to cause overcurrent and overload of a high-voltage capacitor of a transformer substation when harmonic waves are injected into a power grid, a capacitor cabinet cannot be switched normally in harmonic occasions, and the capacitor cabinet can amplify the harmonic waves of the power grid further under more serious conditions: 3. the stability of the equipment is affected, and especially the relay protection device is extremely harmful: 4. the efficiency of the asynchronous motor is reduced and the noise is increased due to the existence of harmonic waves; causing the low-voltage switch equipment to generate misoperation; the method has the advantages that the method causes interference to the automatic normal communication of industrial enterprises, and influences the accuracy of the power electronic metering equipment; 5. the existence of harmonic waves can increase copper loss and iron loss of the power transformer, and directly influence the service capacity and the service efficiency of the transformer; and the noise of the transformer is increased, so that the service life of the transformer is shortened.

Disclosure of utility model

The utility model aims to provide an automatic reactive compensation harmonic elimination capacitor cabinet, and aims to solve the problems that the existing capacitor cabinet is fixed in internal structure, components are added, a frame is required to be welded again, and the capacitor cabinet has harmonic effect on equipment use and shortens service life.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides an automatic reactive compensation resonance elimination capacitor box, including main frame, bottom plate, roof, left side board, right side board, back shrouding and qianmen, the main frame is crisscross concatenation through outer stand and external Liang Zongheng forms, is located both sides connect respectively between outer stand with connect left side board and the right side board, be located the top connect between the external roof beam with connect between the top of outer stand the roof, be located the bottom connect between the external roof beam with connect the bottom of outer stand the bottom plate, be located the front end between the outer stand inboard can dismantle through the bolt and be connected with operating device roof beam and frame front width roof beam, be located the rear end between the outer stand inboard can dismantle through the bolt and be connected with frame back width roof beam, the operating device roof beam is connected with the operation panel, frame front width roof beam is connected with sensor group, the inner frame wide beam in the installation area of the capacitor is connected with the capacitor bank, the inner frame wide beam positioned in the reactor installation area is connected with a reactor group, and the inner frame wide beam positioned in the discharge coil installation area is connected with a discharge coil group.

Preferably, the outer side of the outer upright post at the front end is hinged with the front door, and the outer side of the outer upright post at the rear end is detachably connected with the rear sealing plate through bolts.

Preferably, the bottom of the capacitor bank is connected with the external beam through a capacitor seat.

Preferably, the bottoms of the reactor groups are connected with the external beam through reactor beams.

Preferably, the inner frame wide beam located in the contactor installation area is also connected with a lightning arrester group.

Preferably, an instrument cabinet is further installed at the upper end of the front door in the main frame, and an instrument door is hinged above the front door on the outer side of the outer upright post.

Preferably, the top plate is embedded with a pressure release plate and a fan cover for installing a heat radiation fan.

Preferably, a tower-type wire protecting sleeve is arranged on the bottom plate, and a power clamp is connected above the tower-type wire protecting sleeve.

Preferably, an operating mechanism mounting plate is arranged above the operating mechanism beam on one side of the outer upright post, and a mechanism panel is arranged on the operating mechanism mounting plate and is connected with the operating panel through the mechanism panel.

Compared with the prior art, the utility model has the beneficial effects that:

According to the automatic reactive compensation resonance elimination capacitor cabinet provided by the utility model, through the connection mode that the operation mechanism beam, the front outer frame wide beam, the rear outer frame wide beam, the inner upright post, the outer side beam and the inner frame wide beam are detachably connected through bolts, the arrangement and the arrangement of components in the cabinet are more flexible, when the components are required to be added or replaced, the corresponding connection components are only required to be detached, the whole welding frame is not required to be cut off, the operation process is greatly simplified, the working efficiency is improved, the detachable structure enables the arrangement in the cabinet to be more flexible, the arrangement position of the components can be adjusted according to actual requirements, the space utilization rate is improved, and meanwhile, the heat dissipation and the maintenance are also facilitated; the utility model is suitable for 6kV and 10kV power systems, and can automatically improve the power factor of the system according to the change condition of the power factor of the power grid, reduce the loss of a transformer and a circuit, improve the power transmission capacity, inhibit the harmonic wave of the system and change the power quality of the system so as to achieve the effect of improving the economic benefit of the power transmission and transformation system.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of the present utility model;

Fig. 2 is a perspective view of a main frame;

FIG. 3 is an internal perspective view of the present utility model;

fig. 4 is a right side view of the internal structure of the present utility model.

In the figure: 1. a main frame; 2. a bottom plate; 3. a top plate; 4. a left side plate; 5. a right side plate; 6. a rear sealing plate; 7. front opening; 8. an outer column; 9. an external beam; 10. an operating mechanism beam; 11. a front wide beam of the outer frame; 12. a sensor group; 13. a first insulator group; 14. an inner column; 15. an outer side beam; 16. an inner frame wide beam; 17. an isolation switch region; 18. an insulator region; 19. a contactor mounting area; 20. a capacitor mounting area; 21. a reactor mounting area; 22. a discharge coil installation region; 23. an isolating switch mechanism; 24. a second insulator group; 25. a contactor group; 26. a capacitor bank; 27. a reactor group; 28. a discharge coil group; 29. a capacitor base; 30. a reactor beam; 31. a lightning arrester group; 32. an instrument cabinet; 33. an instrument door; 34. a pressure relief plate; 35. a fan cover; 36. a wire sheath mounting plate; 37. a power clamp bracket; 38. a tower-type wire protecting sleeve; 39. a power clamp; 40. an operating mechanism mounting plate; 41. a mechanism panel; 42. a rear wide beam of the outer frame; 43. and an operation panel.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

An automatic reactive compensation resonance elimination capacitor box of the present utility model is described below with reference to fig. 1 to 4.

As shown in fig. 1 to 4, the utility model provides an automatic reactive compensation resonance elimination capacitor cabinet, which comprises a main frame 1, a bottom plate 2, a top plate 3, a left side plate 4, a right side plate 5, a rear sealing plate 6 and a front door 7, wherein the main frame 1 is formed by criss-cross splicing of outer columns 8 and outer beams 9, the left side plate 4 and the right side plate 5 are respectively connected between the outer columns 8 and the outer beams 9 at two sides, the top plate 3 is connected between the outer beams 9 at the top end and the top end of the outer columns 8, the bottom plate 2 is connected between the outer beams 9 at the bottom and the bottom end of the outer columns 8, an operating mechanism beam 10 and an outer frame front wide beam 11 are detachably connected between the inner sides of the outer columns 8 at the front end through bolts, an outer frame rear wide beam 42 is detachably connected between the outer columns 8 at the rear end through bolts, modularized holes are respectively formed in the outer columns 8, the position adjustment of the operating mechanism beam 10, the front wide beam 11 of the outer frame and the rear wide beam 42 of the outer frame can be facilitated, the operating mechanism beam 10 is connected with the operating panel 43, the front wide beam 11 of the outer frame is connected with the sensor group 12, the rear wide beam 42 of the outer frame is connected with the first insulator group 13, a plurality of groups of inner uprights 14 and a plurality of groups of outer side beams 15 are respectively detached between the outer uprights 8 on two sides through bolts, modular holes are respectively formed on the inner uprights 14 and the outer side beams 15, the position adjustment of the inner frame wide beam 16 can be facilitated, the inner frame wide beam 16 is respectively detached between the inner uprights 14 on two sides and the outer side beams 15 on two sides through bolts, the inner part of the main frame 1 is separated through the inner frame wide beam 16 to form the isolating switch area 17, the insulator region 18, the contactor mounting area 19, the capacitor mounting area 20, the reactor mounting area 21 and the discharge coil mounting area 22, the utility model adds a reactor on a capacitor cabinet, which can play an obvious role in inhibiting harmonic waves, and achieves the effects of stable work, low noise and long service life.

Preferably, the outer sides of the outer upright posts 8 at the front end are hinged with the front door 7, the outer sides of the outer upright posts 8 at the rear end are detachably connected with the rear sealing plate 6 through bolts, and the rear sealing plate 6 passes through the honeycomb Kong Jinfeng.

Preferably, the bottom of the capacitor bank 26 is connected to the external beam 9 via a capacitor mount 29.

Preferably, the bottoms of the reactor groups 27 are each connected to the external beam 9 by means of a reactor beam 30.

Preferably, the inner frame width beam 16 located in the contactor installation area 19 is also connected with a lightning arrester group 31, and components inside the capacitor box can be prevented from being struck by lightning by the lightning arrester group 31 assembled inside the capacitor box.

Preferably, an instrument cabinet 32 is further arranged at the upper end of the front door 7 in the main frame 1, and an instrument door 33 is hinged to the outer side of the outer upright post 8 above the front door 7.

Preferably, the top plate 3 is embedded with a pressure release plate 34 and a fan cover 35 for installing a cooling fan, and the cooling fan is installed in front of the top plate 3 and used for forced ventilation and heat dissipation in the cabinet.

Preferably, a tower-shaped wire protection sleeve 38 is arranged on the bottom plate 2, and a power clamp 39 is connected above the tower-shaped wire protection sleeve 38.

Preferably, an operating mechanism mounting plate 40 is provided on one side of the outer column 8 above the operating mechanism beam 10, the operating mechanism mounting plate 40 being provided with a mechanism panel 41, and an operating panel 43 being connected through the mechanism panel 41.

According to the automatic reactive compensation resonance elimination capacitor cabinet provided by the utility model, through the connection mode that the operation mechanism beam 10, the outer frame front wide beam 11, the outer frame rear wide beam 42, the inner upright post 14, the outer side beam 15 and the inner frame wide beam 16 are detachably connected through bolts, the arrangement and the arrangement of components in the cabinet are more flexible, when the components are required to be added or replaced, the corresponding connection parts are only required to be detached, the whole welding frame is not required to be cut off, the operation process is greatly simplified, the working efficiency is improved, the detachable structure enables the arrangement in the cabinet to be more flexible, the arrangement position of the components can be adjusted according to actual requirements, the space utilization rate is improved, and meanwhile, the automatic reactive compensation resonance elimination capacitor cabinet is beneficial to heat dissipation and maintenance; the utility model is suitable for 6kV and 10kV power systems, and can automatically improve the power factor of the system according to the change condition of the power factor of the power grid, reduce the loss of a transformer and a circuit, improve the power transmission capacity, inhibit the harmonic wave of the system and change the power quality of the system so as to achieve the effect of improving the economic benefit of the power transmission and transformation system.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present utility model.

Claims

1. The utility model provides an automatic reactive compensation resonance elimination capacitor cabinet, including main frame, bottom plate, roof, left side board, right side board, back shrouding and qianmen, the main frame is through outer stand and external Liang Zongheng crisscross concatenation formation, be located both sides outer stand with connect respectively left side board and right side board between the external roof that is located the top connect between the top of outer stand top board, be located the bottom connect between the bottom of external roof and the bottom of outer stand bottom plate, characterized in that, be located the front end the inboard between the outer stand can be connected with operating device roof beam and frame front width roof beam through the bolt, be located the inboard between the outer stand of rear end can be connected with frame back width roof beam through the bolt, operating device roof beam is connected with the operating panel before the frame, frame back width roof beam is connected with first insulator group, be located both sides outer stand between can be dismantled through the bolt a plurality of sets of internal stand and a plurality of group's outer side roof beams respectively, both sides are opposite to between the inner stand and both sides the inner frame has the insulator roof beam through the wide bridge, the insulator region is installed to the isolator region is located the inside frame is connected with the isolation region through the insulator region through the wide bridge, the isolation region is installed to the isolation region, isolation region is located in the isolation region is installed to the isolation region; the insulator group is located the inside casing wide beam of contactor installation region is connected with the contactor group, is located the inside casing wide beam of condenser installation region is connected with the capacitor bank, is located the inside casing wide beam of reactor installation region is connected with the reactor group, is located the inside casing wide beam of discharge coil installation region is connected with the discharge coil group.

2. The automatic reactive compensation resonance elimination capacitor box according to claim 1, wherein the outer side of the outer upright posts at the front end is hinged with the front door, and the outer sides of the outer upright posts at the rear end are detachably connected with a rear sealing plate through bolts.

3. The automatic reactive compensation resonance elimination capacitor cabinet according to claim 1, wherein the bottoms of the capacitor banks are all connected with the external beam through capacitor seats.

4. The automatic reactive compensation resonance elimination capacitor box according to claim 1, wherein the bottoms of the reactor groups are all connected with the external beam through reactor beams.

5. An automatic reactive compensation tuning elimination capacitor cabinet in accordance with claim 1 wherein said inner frame wide beam in said contactor installation area is further connected with a lightning arrester group.

6. The automatic reactive compensation resonance elimination capacitor box according to claim 1, wherein an instrument cabinet is further arranged at the upper end of the front door in the main frame, and an instrument door is hinged above the front door on the outer side of the outer upright post.

7. An automatic reactive compensation resonance elimination capacitor cabinet according to claim 1, wherein the top plate is embedded with a pressure relief plate and a fan cover for installing a heat dissipation fan.

8. The automatic reactive compensation resonance elimination capacitor cabinet according to claim 1, wherein a tower type wire protection sleeve is arranged on the bottom plate, and a power clamp is connected above the tower type wire protection sleeve.

9. An automatic reactive compensation resonance elimination capacitor box according to claim 1, wherein an operating mechanism mounting plate is arranged on one side of the outer upright post above an operating mechanism beam, and the operating mechanism mounting plate is provided with a mechanism panel and is connected with the operating panel through the mechanism panel.