CN209948678U - A capacitor switching module for JP cabinet - Google Patents

Abstract

The utility model provides a capacitor switching module for a JP cabinet, comprising a casing, a cover plate, a mounting fixture, a handle, a capacitor mounting plate, a connector, a capacitor and a three-phase intelligent composite switch; the casing is open on one side The cover plate is fixedly connected to the open side of the casing; one mounting fixture is fixed at the front end of the upper and lower sides of the casing; the handle is fixed on the front side plate of the casing; the capacitor mounting plate is fixedly installed Inside the casing and divide the space inside the casing into two compartments; the connector is fixed on the rear side plate of the casing, more than one capacitor is installed, and one capacitor is fixed on the capacitor mounting plate and located in the casing In the warehouse; the three-phase intelligent composite switch is fixed on the shell and located in another warehouse of the shell. Through the modular design, the utility model makes it more convenient and easy to operate during maintenance, replacement of devices and capacity expansion, and solves the problems of inconvenient operation such as installation, maintenance and capacity expansion of the capacitor switching part in the existing JP cabinet.

Description

A capacitor switching module for JP cabinet

technical field

The utility model relates to the technical field of low-voltage integrated power distribution, in particular to a capacitor switching module used in a JP cabinet.

Background technique

JP cabinet is a new type of comprehensive control box that integrates power distribution, measurement, protection, control, and reactive power compensation.

The electrical equipment of the power system will generate reactive power when it is in use. Usually reactive power is inductive, which will reduce the capacity use efficiency of the power supply, which can be improved by appropriately adding capacitance in the system. Usually, the JP cabinet has a compensation room, and its function is to put capacitors into the system according to the demand to increase the efficiency of the power supply. At present, the compensation indoor capacitors and composite switches are directly and densely installed on the mounting board. In an open environment, if the capacitors and composite switches are burned or burst, the fault range will be expanded and economic losses will be increased. In addition, when installing, maintaining and replacing parts, it is necessary to work in a small cabinet, and the operation is relatively cumbersome.

Utility model content

The purpose of the utility model is to provide a capacitor switching module for the JP cabinet, which solves the problems of inconvenient operation and low safety of the installation, maintenance, and expansion of the capacitor switching part in the existing JP cabinet.

The technical scheme of the utility model is: the utility model is used for the capacitor switching module of the JP cabinet, and its structural characteristics are: including a shell, a cover plate, a mounting fixture, a handle, a capacitor mounting plate, a connector, a capacitor and three Phase intelligent composite switch;

The above-mentioned casing is a box body with an overall rectangular parallelepiped shape and an opening on the left side; the cover plate is a plate body part whose size and shape are matched with the open side of the casing, and the cover plate is fixedly connected to the open side of the casing by screws; installation The fixing piece is an L-shaped bending piece of the plate body, and the fixing piece is provided with screw holes for installation and fixing; one fixing piece is fixed on the front end of the upper side and the lower side of the casing; the handle is fixed on the casing The front side plate of the body; the capacitor installation plate is fixed in the casing and divides the space in the casing into two compartments; the connector is fixed on the rear side plate of the casing, more than one capacitor is installed, and the capacitor is fixedly installed The three-phase intelligent composite switch is fixedly arranged on the casing and is located in another warehouse of the casing.

A further solution is: the above-mentioned connectors are provided with primary and secondary incoming cables, and the above-mentioned primary incoming cables are used to connect the external power supply to the capacitor through the three-phase intelligent composite switch; the above-mentioned secondary incoming cables are used for The external control signal is connected to the three-phase intelligent composite switch, and the switching of the capacitor is correspondingly controlled by controlling the on-off of the three-phase intelligent composite switch.

A further solution is that: the upper side and the lower side of the casing are provided with a number of heat dissipation holes; the cover plate is provided with a number of ventilation and heat dissipation holes.

A further solution is that: the capacitor mounting plate is provided with mounting and fixing holes of three or more specifications suitable for the mounting and fixing of different types of capacitors.

The utility model has positive effects: the capacitor switching module for the JP cabinet of the present utility model is designed to be a closed module structure by assembling the capacitors and load switches with relatively high failure rates in the prior art into a closed module structure. In the event of an accident such as the burnout of the load switch or the burst of the capacitor, the closed structure of the module avoids the expansion of the fault range and does not affect the adjacent devices, which not only reduces the loss in terms of economic benefits, but also increases the cost of the entire cabinet. Safety performance; when repairing or replacing devices, only the simple plugging and unplugging of the module is required, and the operation can be completed without wiring, which is simple and fast, and reduces the time for emergency repairs; similarly, when remodeling and expanding the capacity, for the use of modular JP cabinets , There is no need to modify the compensation room, and the number of modules can be directly increased to complete the operation, which is convenient for on-site rectification and reduces the cost of reconstruction.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

FIG. 2 is a schematic plan view of the structure of FIG. 1 after the cover plate is removed.

The reference signs in the above drawings are as follows:

Shell 1, heat dissipation holes 1-1, cover plate 2, ventilation and heat dissipation holes 2-1, mounting fixture 3, screw holes 3-1, handle 4, capacitor mounting plate 5, connector 6, capacitor 7, three-phase intelligent Composite switch 8.

Detailed ways

The present utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

(Example 1)

1 and 2, the capacitor switching module for the JP cabinet in this embodiment mainly consists of a casing 1, a cover plate 2, a mounting fixture 3, a handle 4, a capacitor mounting plate 5, a connector 6, a capacitor 7 and three-phase intelligent composite switch 8.

The casing 1 is a box body with an overall rectangular parallelepiped shape and an opening on the left side. The upper side and the lower side of the casing 1 are provided with a plurality of heat dissipation holes 1-1. The cover plate 2 is a plate body part whose size and shape match with the open side of the casing 1. The cover plate 2 is provided with a number of ventilation and heat dissipation holes 2-1. The cover plate 2 is fixedly connected to the open side of the casing 1 by screws. .

The mounting and fixing member 3 is an L-shaped plate body bending member, and the mounting and fixing member 3 is provided with a screw hole 3-1 for mounting and fixing. One mounting fixture 3 is fixedly provided on each of the front ends of the upper side surface and the lower side surface of the housing 1 . The mounting fixture 3 is used to fix the capacitor switching module of this embodiment to the applied JP cabinet during use.

The handles 4 are fixedly arranged on the front side plate of the housing 1 , and in this embodiment, two handles 4 are preferably arranged.

The capacitor mounting plate 5 is fixed in the housing 1 in the front and rear directions. The capacitor mounting plate 5 is provided with mounting holes of more than three specifications to be suitable for the mounting and fixing of different types of capacitors 7 ; The space is divided into upper and lower compartments, and there is a gap between the left side of the capacitor mounting plate 5 and the cover plate 2 for cable routing between the three-phase intelligent composite switch 8 and the capacitor 7 .

The connector 6 is fixed on the rear side panel of the housing 1. The connector 6 is provided with primary and secondary incoming cables. The primary incoming cable connects the system power to the three-phase intelligent composite switch 8 from the outside, and then from the The three-phase intelligent composite switch 8 is connected to the capacitor 7; the secondary incoming cable connects the control signal to the three-phase intelligent composite switch 8 from the outside, and is turned on and off by controlling the on-off of the three-phase intelligent composite switch 8 Open capacitor 7.

More than one capacitor 7 is provided, and the capacitor 7 is fixed on the capacitor mounting plate 5 and located in the lower compartment of the casing 1; the three-phase intelligent composite switch 8 is fixed on the right side plate of the casing 1 by screws and is located in the casing 1 inside the upper compartment.

The capacitor switching module used in the JP cabinet in this embodiment can use different wiring methods and different types of capacitors according to actual needs to provide single-phase capacitive reactive power-sub-compensation and three-phase capacitive reactive power-to the system. Co-compensation and interphase capacitive reactive power-indirect compensation are used to meet various compensation requirements, which are the prior art and will not be described in detail.

The capacitor switching module used in the JP cabinet of this embodiment is designed by assembling the capacitors and load switches with relatively high failure rates in the prior art into a closed module structure. When the load switch burns or the capacitor bursts, etc. In the event of an accident, due to the closed structure of the module, the expansion of the fault range is avoided, and the adjacent devices will not be affected, which not only reduces the loss in terms of economic benefits, but also increases the safety performance of the entire cabinet; It is simple and quick to complete the operation without wiring, and it reduces the emergency repair time. Similarly, when the modularized JP cabinet is used, there is no need to modify the compensation room. The number of modules can be directly increased to complete the operation, which is convenient for on-site rectification and reduces the cost of reconstruction.

The above embodiment is an illustration of the specific embodiments of the present invention, rather than a limitation of the present invention. Those skilled in the relevant technical field can also make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should be included in the scope of patent protection of the present invention.

Claims (4)

1. A capacitor switching module for JP cabinet, characterized in that: comprising housing, cover plate, mounting fixture, handle, capacitor mounting plate, connector, capacitor and three-phase intelligent composite switch; The casing is a box body with an overall rectangular parallelepiped shape and an opening on the left side; the cover plate is a plate body part whose size and shape are matched with the open side of the casing, and the cover plate is fixedly connected to the open side of the casing by screws; The mounting fixture is an L-shaped plate body bending piece, and the mounting fixture is provided with screw holes for mounting and fixing; the mounting fixture is fixedly arranged at the front end of the upper side and the lower side of the housing; the handle is fixed at the The front side plate of the casing; the capacitor mounting plate is fixed in the casing and divides the space in the casing into two compartments; the connector is fixed on the rear side plate of the casing, more than one capacitor is installed, and the capacitor is fixed The three-phase intelligent composite switch is fixedly arranged on the casing and is located in another warehouse of the casing. 2. The capacitor switching module for a JP cabinet according to claim 1, wherein the connector is provided with a primary and a secondary incoming cable, and the primary incoming cable is used to connect an external power supply It is connected to the capacitor through the three-phase intelligent composite switch; the secondary incoming cable is used to connect the external control signal to the three-phase intelligent composite switch, and the switching of the capacitor is correspondingly controlled by controlling the on-off of the three-phase intelligent composite switch. . 3. The capacitor switching module for a JP cabinet according to claim 1 or 2, characterized in that: the upper side and the lower side of the casing are provided with several heat dissipation holes; There are several ventilation holes. 4 . The capacitor switching module for JP cabinets according to claim 3 , wherein the capacitor mounting plate is provided with mounting and fixing holes of three or more specifications suitable for the mounting and fixing of different types of capacitors. 5 .

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