CN204361672U - A kind of agriculture net cage system - Google Patents

Abstract

The utility model discloses an agricultural net box system, which comprises the agricultural net box, and the anti-stealing metering unit, the incoming line unit and the outgoing line unit which are connected in sequence are arranged in the agricultural net box; the anti-theft electric metering unit is provided with A metering module, the incoming line unit is provided with a knife switch module and a main circuit breaker module, the outgoing line unit is provided with a branch circuit breaker, the output end of the metering module is connected to the input end of the knife switch module, and the output end of the knife switch module is connected to the main The output end of the circuit breaker module, and the main circuit breaker module is connected to the input end of the branch circuit breaker. The metering module includes a metering current transformer and a metering electric energy meter, and the incoming line unit also includes a lightning arrester protection module, and the lightning arrester protection module is arranged between the knife switch module and the anti-theft metering unit. The utility model can effectively and timely cut off the fault current, reduce the replacement of equipment parts and the occurrence of lightning strike accidents, and ensure the safety of equipment and people.

Description

An agricultural cage system

technical field

The utility model relates to an agricultural net box system, in particular to an agricultural net box system suitable for a low-voltage distribution network.

Background technique

With the development of the economy and the improvement of people's living standards, all walks of life put forward higher requirements for the reliability and quality of power supply. Rural net box is a control device developed to adapt to small-capacity transformer lines in rural areas, and is widely used in civil power transformation projects. Especially in recent years, the state has increased its investment in power infrastructure and the transformation of rural power grids. The state has invested heavily in public facilities. The demand for rural net cages is increasing every year, and the safety of electricity use in rural net cages is also increasing. be valued. In the process of using electricity, accidents caused by lightning strikes and replacement parts of agricultural cages occur from time to time, and personal electric shock and fire accidents caused by defects in electrical equipment itself, improper use and unfavorable safety technical measures, It caused undue loss to human life and property.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a system of agricultural net cages, which can automatically cut off the circuit when an overload fault occurs, has low maintenance costs, effectively protects equipment and personal safety, and can achieve a better lightning protection effect at the same time .

In order to achieve the above object, the technical scheme that the utility model adopts is:

A kind of agricultural net box system, comprising agricultural net box, described agricultural net box is provided with anti-stealing metering unit, incoming line unit and outgoing line unit connected in sequence; described anti-stealing metering unit is provided with metering module, described The incoming line unit is provided with a knife switch module and a main circuit breaker module, the outgoing line unit is provided with a branch circuit breaker, the output end of the metering module is connected to the input end of the knife switch module, and the output end of the knife switch module is connected to the output of the main circuit breaker module terminal, the main circuit breaker module is connected to the input terminal of the branch circuit breaker.

Preferably, the metering module includes a metering current transformer and a metering electric energy meter, the current transformer and the metering electric energy meter are electrically connected to each other, and the output end of the metering current transformer is connected to the input end of the incoming line unit.

Preferably, the incoming line unit further includes a lightning arrester protection module, and the lightning arrester protection module is arranged between the knife switch module and the anti-theft metering unit.

Preferably, the arrester protection module is an arrester.

Preferably, the knife switch module is a knife switch.

Preferably, the main circuit breaker module is a molded case circuit breaker.

Preferably, the branch circuit breaker is a molded case circuit breaker.

Preferably, the branch circuit breaker is composed of multiple molded case circuit breakers.

Preferably, the anti-stealing electricity metering unit is set in an independent isolated room in the agricultural net box, and the incoming line unit and outgoing line unit are set in an independent isolated room in the agricultural net box.

Compared with the prior art, the beneficial effect of the utility model is: by setting a molded case circuit breaker and a lightning arrester in the incoming line unit, and setting a circuit breaker in the outgoing line unit at the same time, when an electric shock accident caused by electrical equipment or other electrical equipment occurs When there is a fault during operation, it can effectively cut off the fault current in time, reduce the replacement of equipment parts and the occurrence of lightning strike accidents, and ensure the safety of equipment and people; set up a separate isolation room to facilitate the wiring between units and better distribute the farm cages. The space further improves the safety performance of the equipment.

Description of drawings

Fig. 1 is the structural representation of the utility model;

In the attached drawings: 1. Rural cage; 2. Anti-stealing electricity metering unit; 21. Metering current transformer; 22. Metering electric energy meter; 3. Incoming line unit; 31. Lightning arrester protection module; 32. Knife switch module; 33 . Main circuit breaker module; 4. Outlet unit; 41. Branch circuit breaker.

Detailed ways

The gist of the utility model is to overcome the deficiencies of the prior art and provide an agricultural net box system, which is especially suitable for low-voltage distribution networks; the agricultural net box system can automatically cut off the circuit when serious overload and other faults occur, After the fault current is broken, there is generally no need to change parts, which protects the safety of equipment and personal and reduces maintenance work in the later period. At the same time, it can effectively prevent the agricultural cages from being struck by lightning. The following will be described in detail with reference to the accompanying drawings in conjunction with the embodiments, so as to further explain the technical features and advantages of the present utility model.

The structure schematic diagram of the present utility model is as shown in Figure 1, a kind of agricultural net box system, comprises agricultural net box 1, and described agricultural net box is provided with the anti-stealing metering unit 2, incoming line unit 3 and outgoing line unit connected in sequence 4. The anti-stealing metering unit is provided with a metering module, the incoming line unit is provided with a knife switch module 32 and a main circuit breaker module 33, the outgoing line unit is provided with a branch circuit breaker 41, and the output end of the metering module is connected to a knife The input end of the switch module 32 and the output end of the knife switch module 32 are connected to the output end of the main circuit breaker module 33 , and the main circuit breaker module 33 is connected to the input end of the branch circuit breaker 41 . As shown in FIG. 1 , the outlet unit 4 of the present invention is provided with corresponding outlet branches, and each outlet branch is provided with a branch circuit breaker 41 .

As a preferred embodiment of the utility model, the metering module of the utility model includes a metering current transformer 21 and a metering electric energy meter 22, the current transformer 21 and the metering electric energy meter 22 are electrically connected to each other, and the output terminal of the metering current transformer 21 is connected to The input terminal of incoming line unit 3. The metering electric energy meter 22 is an intelligent electric energy meter, and the metering current transformer 21 is a current transformer specially used for metering. Of course, the anti-stealing metering unit of the present invention also includes a bus bar for connecting the above structure.

As shown in Figure 1, in order to further prevent the agricultural net cage system from being struck by lightning, the incoming line unit 3 also includes a lightning arrester protection module 31, and the lightning arrester protection module is arranged between the knife switch module 32 and the anti-theft metering unit 1 between. The arrester protection module 31 is an arrester. At present, other devices that can achieve the same lightning protection effect are acceptable, such as lightning protection sheets.

As a preferred embodiment of the utility model, the knife switch module 32 of the utility model is a knife switch. For example, it is a knife switch or isolating switch. Among the commonly used knife switches, HD type single-throw knife switch, HS type double-throw knife switch (knife-shaped changeover switch), HR type fuse type knife switch, HZ type combination switch, HK type Knife switch, HY type reversing switch and HH type iron shell switch etc., as long as can realize the same switch action of the present utility model, all in the scope of protection of the present utility model.

Further, the main circuit breaker module 33 is a molded case circuit breaker. The branch circuit breaker 41 is a molded case circuit breaker. As shown in FIG. 1 , the branch circuit breaker 41 is composed of multiple molded case circuit breakers. The outlet unit 4 is provided with corresponding outlet branches, and each outlet branch is provided with a branch circuit breaker 41 .

Further, in order to facilitate the wiring between the units and better distribute the space in the agricultural net box, two mutually independent isolation rooms are arranged in the agricultural net box, and the anti-theft metering unit 2 is arranged on the agricultural net box. An independent isolated room in the net cage 1 , the incoming line unit 3 and the outgoing line unit 4 are arranged in the independent isolated room in the agricultural net box 1 .

The agricultural net box system provided by the utility model is especially suitable for low-voltage distribution network; by setting a molded case circuit breaker and a lightning arrester in the incoming line unit of the agricultural net box system, and a molded case circuit breaker in the outgoing line unit, it can Effectively prevent electric shock accidents caused by electrical equipment, and cut off the faults in the operation of electrical equipment in time; at the same time, it can also prevent lightning accidents and effectively guarantee the safety of equipment and people.

The utility model is clearly and completely described through the technical solutions in the above embodiments, and it is obvious that the described embodiments are a part of the embodiments of the utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Claims (9)

1. an agriculture net cage system, comprises rural power grids case (1), it is characterized in that: be provided with the electricity stealing preventive metering unit (2), wire inlet unit (3) and the outgoing line unit (4) that connect successively in described rural power grids case; Described electricity stealing preventive metering unit is provided with metering module, described wire inlet unit is provided with knife switch module (32) and main circuit breaker module (33), described outgoing line unit is provided with branch circuit breaker (41), the output of metering module connects the input of knife switch module (32), the output of knife switch module (32) connects the output of main circuit breaker module (33), and main circuit breaker module (33) connects the input of branch circuit breaker (41).

2. agriculture net cage system according to claim 1, it is characterized in that: described metering module comprises metering current mulual inductor (21) and metering electric energy meter (22), current transformer (21) and metering electric energy meter (22) are electrically connected to each other, and metering current mulual inductor (21) output connects the input of wire inlet unit (3).

3. agriculture net cage system according to claim 2, is characterized in that: described wire inlet unit (3) also comprises a protection of arrester module (31), and described protection of arrester module installation is between knife switch module (32) and electricity stealing preventive metering unit (1).

4. agriculture net cage system according to claim 3, is characterized in that: described protection of arrester module (31) is lightning arrester.

5. agriculture net cage system according to claim 1, is characterized in that: described knife switch module (32) is knife switch.

6. agriculture net cage system according to claim 1, is characterized in that: described main circuit breaker module (33) is breaker of plastic casing.

7. agriculture net cage system according to claim 1, is characterized in that: described branch circuit breaker (41) is breaker of plastic casing.

8. agriculture net cage system according to claim 7, is characterized in that: described branch circuit breaker (41) is made up of multichannel breaker of plastic casing.

9. the agriculture net cage system according to any one of claim 1 ~ 8, it is characterized in that: described electricity stealing preventive metering unit (2) is arranged at the independent isolating room in described rural power grids case (1), described wire inlet unit (3) and outgoing line unit (4) are arranged at the independent isolating room in described rural power grids case.