CN219498966U - Novel mounting structure of plug-in intelligent capacitance compensation device - Google Patents

Abstract

The utility model discloses a novel mounting structure of a plug-in intelligent capacitance compensation device, which comprises a shell, wherein a main control driving board, a man-machine interaction unit, a switching capacitance switch, a power capacitor bank, a plastic shell circuit breaker and a capacitance current transformer are arranged in the shell; the utility model has safe and reliable switching, small input surge current, small impact on the power grid, prolonged service life of products, effective guarantee of safe and reliable operation of the capacitor, good applicability and strong practicability.

Description

Novel mounting structure of plug-in intelligent capacitance compensation device

Technical Field

The utility model relates to the technical field of low-voltage reactive power compensation, in particular to a novel installation structure of a pluggable intelligent capacitance compensation device.

Background

With the continuous and deep transformation of rural power grids, a large number of JP cabinets (low-voltage comprehensive distribution boxes) are applied to rural power lines and distribution areas. The JP cabinet is designed for meeting the requirements of standardization, miniaturization, modularization and intellectualization of rural low-voltage distribution devices, and integrates distribution, metering, protection (overload, short circuit, electric leakage and snow prevention) and reactive compensation. Because of the unbalanced three-phase load and the underestimated peak period of domestic electricity, reactive compensation is needed to adopt a mixed compensation mode combining three-phase compensation and split-phase compensation, and the capacitor is automatically switched according to the actual reactive power requirement of load transformation.

The reactive power compensation part cabinet of the earlier comprehensive distribution box comprises: a molded case circuit breaker or a knife-fuse switch, a reactive power compensation controller, a special switching contactor or a compound switch for a capacitor, a low-voltage self-healing power capacitor and the like. It has the following disadvantages: the switching surge current is large, the contact life of the special switching contactor for the capacitor is short, the wiring is complicated, the occupied space is large, the maintenance and overhaul are inconvenient, the cost is high, the mechanical connecting parts are more, and the equipment is easy to fail. In recent years, along with the continuous popularization and application of the intelligent capacitor, the compensation scheme is gradually replaced by the intelligent capacitor, but the current compensation scheme of the intelligent capacitor is mainly installed and used by 4-5 independent intelligent capacitors, so that a certain cost is increased while the installation is convenient compared with the prior art for manufacturers.

Disclosure of Invention

The utility model aims to provide a novel installation structure of a pluggable intelligent capacitance compensation device, which is used for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a novel mounting structure of plug-in intelligent capacitance compensation device, includes the casing, be provided with master control drive plate, man-machine interaction unit, switching capacitance switch, power capacitor bank, moulded case circuit breaker and electric capacity current transformer in the casing, power capacitor bank is fixed on the diapire of casing, power capacitor bank's upper end is provided with the same switching capacitance switch of a plurality of structures, switching capacitance switch lower extreme all is equipped with switching switch wire, casing one side lateral wall lower extreme inserts and is equipped with plug-in binding post, the fixed mounting panel that is equipped with of casing opposite side, moulded case circuit breaker with man-machine interaction unit is fixed respectively on the mounting panel, moulded case circuit breaker pass through copper hinge wire with plug-in binding post electricity is connected, switching capacitance switch's bottom surface middle part is fixed with the connection copper sheet, switching capacitance switch's connection with moulded case circuit breaker lower extreme electricity is connected, electric capacity current transformer cover wears on the connection copper wire, the master control drive plate is fixed in the casing, is located switching capacitance switch's top one side is fixed respectively at the master control panel passes through the copper line and is connected with the electric capacity line.

Further, the power capacitor bank 1 comprises at least two independent power capacitor units.

Further, the capacitors inside one of the power capacitor units are two sets of "delta" type connections and one set of "Y" type connections or the capacitors inside the power capacitor unit are two sets of "Y" type connections and one set of "delta" type connections.

Further, a temperature sensor is arranged in the power capacitor unit, and the temperature sensor is electrically connected with the main control driving board through a cable.

Further, the molded case circuit breakers are electrically connected with the power supply inlet terminals of the power capacitor units, respectively.

Further, at least three switching capacitance switches are fixed on the capacitor wiring terminal.

The utility model has the beneficial effects that: the utility model has simple structure, can effectively reduce the material and manual installation cost by installing and connecting the switching switch and the capacitor terminal, can effectively reduce the material and production and assembly man-hour, has more convenient user installation and convenient maintenance and replacement of vulnerable parts due to the design of the pluggable terminal of the reactive compensation unit in the comprehensive distribution box, has safe and reliable switching, small input inrush current, less impact on a power grid, prolongs the service life of products, can effectively ensure the safe and reliable operation of the capacitor, and has good applicability and strong practicability.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the switch, the connecting copper sheet and the conducting wire of the switch according to the present utility model.

Reference numerals: 1. a power capacitor bank; 2. plug-in wiring terminals; 3. a housing; 4. a switching capacitor switch; 5. a main control driving board; 6. a capacitive current transformer; 7. a man-machine interaction unit; 8. a molded case circuit breaker; 9. connecting copper sheets; 10. a switching switch wire; 11. a mounting plate; 12. copper hinge lines; 13. and connecting copper wires.

Detailed Description

As shown in fig. 1 to 2, in a specific embodiment, a novel installation structure of a pluggable intelligent capacitance compensation device comprises a shell 3, wherein a main control driving board 5, a man-machine interaction unit 7, a switching capacitance switch 4, a power capacitor bank 1, a plastic shell circuit breaker 8 and a capacitance current transformer 6 are arranged in the shell 3, the power capacitor bank 1 is fixed on the bottom wall of the shell 3, a plurality of switching capacitance switches 4 with the same structure are arranged at the upper end of the power capacitor bank 1, switching switch wires 10 are arranged at the lower end of each switching capacitance switch 4, a pluggable wiring terminal 2 is inserted into the lower end of one side wall of the shell 3, a mounting plate 11 is fixedly arranged at the other side of the shell 3, the plastic shell circuit breaker 8 and the man-machine interaction unit 7 are respectively fixed on the mounting plate 11, the plastic shell circuit breaker 8 is electrically connected with the pluggable wiring terminal 2 through a copper hinge 12, a connecting copper sheet 9 is fixed in the middle of the bottom surface of the switching capacitance switch 4, a copper wire 13 of the switching capacitance switch 4 is electrically connected with the lower end of the plastic shell circuit breaker 8, the capacitance current transformer 6 is sleeved on the connecting board 13, a main control board 3 is fixedly connected with the wiring board 5 through the wiring board 5, and the wiring board is fixedly connected with the wiring terminal 7 at one side of the main control board through the wiring board 5; the power capacitor bank 11 comprises at least two independent power capacitor units; the capacitors inside one power capacitor unit are two groups of delta-shaped connection and one group of Y-shaped connection or the capacitors inside the power capacitor unit are two groups of Y-shaped connection and one group of delta-shaped connection; a temperature sensor is arranged in the power capacitor unit and is electrically connected with the main control driving board 5 through a cable; the molded case circuit breakers 8 are respectively and electrically connected with the power supply inlet ends of the power capacitor units; at least three switching capacitance switches 4 are fixed on the capacitor wiring terminals.

Through the arrangement, the intelligent power distribution box is simple in structure, the switching switch is connected with the capacitor terminal in an installation manner, material and manual installation cost can be effectively reduced, material and production and assembly man-hour can be effectively reduced, due to the fact that the plug-in terminal design of the reactive compensation unit in the integrated power distribution box is achieved, user installation is simpler and more convenient, maintenance and replacement of vulnerable parts are conveniently achieved, switching is safe and reliable, input surge current is small, impact on a power grid is small, service life of a product is prolonged, operation safety and reliability of the capacitor can be effectively guaranteed, applicability is good, and practicability is strong.

The standard components used in this embodiment may be purchased directly from the market, but the nonstandard structural components described in the specification may also be obtained directly by unambiguous processing according to the common general knowledge in the prior art, and meanwhile, the connection manner of each component adopts the conventional means mature in the prior art, and the machinery, the components and the equipment all adopt the conventional types in the prior art, so that no specific description will be made here.

The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (6)

1. The utility model provides a novel mounting structure of plug-in intelligent capacitance compensation device, includes casing (3), be provided with master control drive plate (5), man-machine interaction unit (7), switching capacitance switch (4), power capacitor bank (1), moulded case circuit breaker (8) and electric capacity current transformer (6) in casing (3), its characterized in that, power capacitor bank (1) are fixed on the diapire of casing (3), the upper end of power capacitor bank (1) is provided with switching capacitance switch (4) that a plurality of structures are the same, switching capacitance switch (4) lower extreme all is equipped with switching switch wire (10), casing (3) one side lateral wall lower extreme inserts and is equipped with plug-in binding post (2), casing (3) opposite side fixed be equipped with mounting panel (11), moulded case circuit breaker (8) with man-machine interaction unit (7) are fixed respectively on mounting panel (11), moulded case circuit breaker (8) are connected with plug-in wiring terminal (2) electricity through copper hinge line (12), copper wire (4) side wall lower part is equipped with copper wire (6) is connected with copper wire (13) switching capacitance switch (13), the main control driving board (5) is fixed in the shell (3) and is positioned on one side above the switching capacitance switch (4), the man-machine interaction unit (7) is electrically connected with the main control driving board (5) through a signal flat cable, and the switching capacitance switch (4) is electrically connected with the main control driving board (5) through a cable.

2. The novel installation structure of a plug-in intelligent capacitance compensation device according to claim 1, wherein the power capacitor bank (1) comprises at least two independent power capacitor units.

3. The novel installation structure of a plug-in intelligent capacitance compensation device according to claim 2, wherein the capacitors inside one of the power capacitor units are two sets of "delta" type connections and one set of "Y" type connections or the capacitors inside the power capacitor units are two sets of "Y" type connections and one set of "delta" type connections.

4. The novel installation structure of the pluggable intelligent capacitance compensation device according to claim 3, wherein a temperature sensor is arranged in the power capacitor unit and is electrically connected with the main control driving board (5) through a cable.

5. The novel installation structure of the pluggable intelligent capacitance compensation device according to claim 4, wherein the molded case circuit breakers (8) are respectively electrically connected with power supply inlet terminals of the power capacitor units.

6. The novel installation structure of the pluggable intelligent capacitance compensation device according to claim 1, wherein at least three switching capacitance switches (4) are fixed on the capacitor wiring terminal.