CN218958552U

CN218958552U - Portable reactive compensation emergency device

Info

Publication number: CN218958552U
Application number: CN202223074793.0U
Authority: CN
Inventors: 郑则诚; 陈宇渊; 尚将; 郭朱颖
Original assignee: Taizhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Current assignee: Taizhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-05-02
Anticipated expiration: 2032-11-18

Abstract

The utility model discloses a portable reactive compensation emergency device, which belongs to the technical field of reactive compensation devices and solves the problem that compensation cannot be performed according to actual power factors. The utility model is mainly used for finely compensating the tail ends of branch lines.

Description

Portable reactive compensation emergency device

[ field of technology ]

The utility model discloses a portable reactive compensation emergency device, and belongs to the technical field of reactive compensation devices.

[ background Art ]

The existing reactive compensation device is fixedly arranged in a switch cabinet in a power distribution room or a box transformer substation, adopts standard design, adopts a low-voltage busbar of a transformer at the position of a compensation point, belongs to centralized compensation, cannot finely compensate each low-voltage branch line of a power distribution area, cannot perform on-site compensation at the tail end of the branch line, has fixed compensation maximum capacity, and cannot formulate the most reasonable compensation capacity according to actual power factors.

[ utility model ]

The utility model aims to solve the problem that compensation cannot be performed according to actual power factors, and provides a portable reactive compensation emergency device which can finely compensate the tail ends of branch lines.

The technical problems are solved, and the utility model adopts the following technical scheme:

the utility model provides a portable reactive compensation emergency device, includes the cabinet body, the internal measurement circuit that is equipped with of cabinet, the external side of cabinet is equipped with the fastener that is used for the intercommunication measurement circuit, the cabinet body is equipped with the detecting element that is used for gathering measurement circuit electric current and with the parallelly connected compensation unit of measurement circuit, the compensation unit includes a plurality of compensator that connects in parallel each other, the compensator includes condenser and three-phase switch, the capacity of condenser is all mutually different in the compensator, the cabinet body surface is equipped with the reactive power display that is used for showing measurement circuit power factor, and reactive power display links to each other with measurement circuit and detecting element.

The beneficial effects of the utility model are as follows:

the detection unit is communicated with the measuring circuit, the power factor of the measuring circuit is displayed through the reactive power display, the compensation unit comprises a plurality of compensators which are connected in parallel, the capacity of the capacitor in each compensator is different, the compensators with different capacities are communicated with the measuring circuit in sequence, and the change of the power factor after being put into the compensators is displayed through the reactive power display, so that the capacity needing compensation can be accurately determined.

Preferably, the cabinet body is internally provided with a wiring terminal communicated with the wire clamp, and the wiring terminal comprises an A phase, a B phase and a C phase.

Preferably, the detection unit comprises a current transformer and an ammeter, wherein the current transformer is connected with one of the wiring terminals, and the ammeter is connected with the current transformer and the reactive power display in series.

Preferably, a single-phase switch is arranged on the measuring line, and the other two phases of the connecting terminals are connected with the reactive power display through the single-phase switch.

Preferably, the compensation unit includes 3 compensators, and is connected to one of the phases in the connection terminals, respectively.

Preferably, the compensator further comprises a prompt lamp for prompting a communication state, and when the prompt lamp is on, the compensator is in a communication state with the measuring circuit; when the prompting lamp is extinguished, the compensator and the measuring line are in a disconnected state.

Preferably, the cabinet body is provided with a cabinet door, a transparent window is arranged on the cabinet door, and the transparent window is opposite to the reactive power display after the cabinet door is closed.

Preferably, the cabinet door comprises a first door body and a second door body, and the first door body and the second door body are respectively hinged with two sides of the cabinet body; or, both ends all are equipped with the slide rail about the cabinet body, first door body and second door body all sliding connection are on the slide rail.

Preferably, the bottom of the cabinet body is provided with a movable roller assembly, the roller assembly comprises a roller, an adjusting assembly and a brake assembly, the adjusting assembly is used for adjusting the distance between the roller and the bottom end of the cabinet body, and the brake assembly is used for limiting the rotation of the roller.

Other features and advantages of the present utility model will be disclosed in the following detailed description of the utility model and the accompanying drawings.

[ description of the drawings ]

The utility model is further described with reference to the accompanying drawings:

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

FIG. 2 is a schematic view of a back structure of an embodiment of the present utility model;

fig. 3 is a schematic diagram of an embodiment of the present utility model.

Reference numerals: 1 client, 2 binding post, 31 current transformer, 32 ampere meter, 33 reactive power display, 4 compensation unit, 41 compensator, 411 three-phase switch, 412 condenser, 413 warning light, 5 single-phase switch, 6 cabinet body, 61 cabinet door, 611 transparent window, 62 roller component, 63 handle, 7 fastener, 71 clamp body, 72 puncture body.

[ detailed description ] of the utility model

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus 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. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 3, this embodiment shows a portable reactive compensation emergency device, including a cabinet body 6, a measuring line is provided in the cabinet body 6, a wire clamp 7 for communicating with the measuring line is provided at the outer side of the cabinet body 6, the cabinet body 6 is provided with a detecting unit for collecting the current of the measuring line and a compensating unit 4 connected in parallel with the measuring line, the compensating unit 4 includes a plurality of compensators 41 connected in parallel with each other, the compensators 41 include a capacitor 412 and a three-phase switch 411, the capacities of the capacitors 412 in the compensators 41 are different from each other, a reactive power display 33 for displaying the power factor of the measuring line is provided on the surface of the cabinet body 6, and the reactive power display 33 is connected with the measuring line and the detecting unit.

The detection unit is communicated with the measuring circuit, the power factor of the measuring circuit is displayed through the reactive power display 33, the compensation unit 4 comprises a plurality of compensators 41 which are connected in parallel, the capacity of the capacitor 412 in each compensator 41 is different, the compensators 41 with different capacities are communicated with the measuring circuit in sequence, and the change of the power factor after being input into the compensators 41 is displayed through the reactive power display 33, so that the capacity needing compensation can be accurately determined.

In this embodiment, the rear side of the cabinet body 6 is provided with 4 wire clamps 7, and the wire clamps 7 are connected with the branch wires of the client 1, wherein the wire clamps 7 are rotary piercing wire clamps 7, the wire clamps 7 comprise a clamp body 71 and a piercing body 72 for connecting the branch wires of the client 1, the piercing body 72 is rotatably connected to the clamp body 71, and the piercing body 72 pierces into the branch wires by rotating the piercing body 72, so that the connection between the branch wires and the wire clamps 7 is realized.

In this embodiment, a connection terminal 2 communicated with the wire clamp 7 is disposed in the cabinet body 6, the connection terminal 2 includes an a phase, a B phase, a C phase and an N phase, the branch wires respectively connect A, B, C three phases and the N phase with the connection terminal 2 correspondingly through 4 wire clamps 7, the detection unit includes a current transformer 31 and an ammeter 32, the current transformer 31 is connected with one of the connection terminals 2, in this embodiment, the current transformer 31 is connected with the C phase of the connection terminal 2, the ammeter 32 is connected in series with the current transformer 31 and the reactive power display 33, and because each phase in the three phases is basically equal, the current of one phase is taken as a monitoring current, and the power factor of the client 1 is calculated through the data acquisition of the current transformer 31 and the reactive power display 33; the measuring line is provided with a single-phase switch 5, the other two phases of the wiring terminal 2 are connected with the reactive power display 33 through the single-phase switch 5, namely, the phase A and the phase B are simultaneously connected into the reactive power display 33 through the single-phase switch 5, and the power factor of the current client 1 is displayed in the reactive power display 33.

In this embodiment, the compensation unit 4 includes 3 compensators 41, and are respectively connected to one of the connection terminals 2, the compensators 41 further include a prompting lamp 413 for prompting a communication state, and when the prompting lamp 413 is on, the compensators 41 are in a communication state with the measurement circuit; when the indicator light 413 is turned off, the compensator 41 is disconnected from the measurement line; in this embodiment, three capacitors 412 with different capacities are connected in parallel, for example, in a measurement line, and then three-phase switches 411 are controlled to be closed, so that the three capacitors 412 with different capacities are sequentially connected, and after the input capacitor 412 is displayed in the reactive power display 33, the power factor change of the client 1 is displayed, so that the compensation capacity required by the client 1 can be accurately determined.

In addition, in this embodiment, the cabinet body 6 is provided with a cabinet door 61, a transparent window 611 is provided on the cabinet door 61, the transparent window 611 is opposite to the reactive power display 33 after the cabinet door 61 is closed, through the transparent window 611, even if the cabinet door 61 is closed, a worker can still clean the power factor displayed by the observing reactive power display 33, and the cabinet door 61 comprises a first door body and a second door body, and the first door body and the second door body are respectively hinged with two sides of the cabinet body 6; it will be understood, of course, that in other embodiments, the cabinet 6 may have slide rails at the upper and lower ends, and the first door and the second door are slidably connected to the slide rails.

In order to facilitate the transportation of the cabinet 6, in this embodiment, a movable roller assembly 62 is disposed at the bottom of the cabinet 6, the roller assembly 62 includes a roller, an adjusting assembly and a brake assembly, the adjusting assembly is used for adjusting the interval between the roller and the bottom end of the cabinet 6, and the brake assembly is used for limiting the rotation of the roller; in addition, handles 63 hinged with the cabinet 6 are arranged on two sides of the cabinet 6, so that the cabinet is convenient for workers to carry.

While the utility model has been described in terms of embodiments, it will be appreciated by those skilled in the art that the utility model is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present utility model are intended to be included within the scope of the appended claims.

Claims

1. The utility model provides a portable reactive compensation emergency device, includes the cabinet body, the internal measurement circuit that is equipped with of cabinet, the external side of cabinet is equipped with the fastener that is used for the intercommunication measurement circuit, its characterized in that: the cabinet body is provided with a detection unit for collecting the current of the measuring line and a compensation unit connected with the measuring line in parallel, the compensation unit comprises a plurality of compensators connected in parallel, the compensators comprise capacitors and three-phase switches, the capacities of the capacitors in the compensators are different from each other, the surface of the cabinet body is provided with a reactive power display for displaying the power factor of the measuring line, and the reactive power display is connected with the measuring line and the detection unit.

2. A portable reactive compensation emergency device according to claim 1, wherein: the cabinet body is internally provided with a wiring terminal communicated with the wire clamp, and the wiring terminal comprises an A phase, a B phase and a C phase.

3. A portable reactive compensation emergency device according to claim 2, characterized in that: the detection unit comprises a current transformer and an ammeter, wherein the current transformer is connected with one of the wiring terminals, and the ammeter is connected with the current transformer and the reactive power display in series.

4. A portable reactive compensation emergency device according to claim 3, wherein: the measuring circuit is provided with a single-phase switch, and the other two phases of the wiring terminals are connected with the reactive power display through the single-phase switch.

5. A portable reactive compensation emergency device according to claim 2, characterized in that: the compensation unit comprises 3 compensators and is respectively connected with one phase in the wiring terminals.

6. A portable reactive compensation emergency device according to claim 1, wherein: the compensator also comprises a prompt lamp for prompting the communication state, and when the prompt lamp is on, the compensator is in the communication state with the measuring circuit; when the prompting lamp is extinguished, the compensator and the measuring line are in a disconnected state.

7. A portable reactive compensation emergency device according to claim 1, wherein: the cabinet body is provided with a cabinet door, a transparent window is arranged on the cabinet door, and the transparent window is opposite to the reactive power display after the cabinet door is closed.

8. The portable reactive compensation emergency device of claim 7, wherein: the cabinet door comprises a first door body and a second door body, and the first door body and the second door body are respectively hinged with two sides of the cabinet body; or, both ends all are equipped with the slide rail about the cabinet body, first door body and second door body all sliding connection are on the slide rail.

9. A portable reactive compensation emergency device according to claim 1, wherein: the movable roller assembly is arranged at the bottom of the cabinet body and comprises rollers, an adjusting assembly and a brake assembly, wherein the adjusting assembly is used for adjusting the distance between the rollers and the bottom end of the cabinet body, and the brake assembly is used for limiting the rotation of the rollers.