CN201821024U - Pole-mounted power distribution box in rural power network - Google Patents

Abstract

The utility model discloses a pole-mounted power distribution box in a rural power network, which comprises a box body, a power distribution loop, a cable inlet chamber, a metering chamber, a reactive compensation chamber, a master inlet chamber and an outlet chamber. The cable inlet chamber is positioned above the metering chamber and isolated from the metering chamber through a beam fixed to the box body, the reactive compensation chamber is positioned on the right side of the cable inlet chamber and the metering chamber, and isolated from the cable inlet chamber and the metering chamber through a beam fixed to the box body, the master inlet chamber is positioned exactly behind the cable inlet chamber and the metering chamber, and isolated from the cable inlet chamber and the metering chamber through a beam fixed to the box body, and the outlet chamber is positioned on the right side of the master inlet chamber and isolated from the master inlet chamber through a beam fixed to the box body.

Description

A power distribution box on a farm grid post

technical field

The utility model relates to a power distribution device, in particular to a power distribution box on an agricultural net post.

Background technique

With the increasing number of household appliances connected to the rural power grid, the aging of the line and the corrosion of the transmission line by environmental factors have seriously affected the safety of the user's electricity use. However, the current distribution box is not designed properly. After installation, the switch frequently occurs. Misoperation, or burning of components due to excessive temperature in the high-temperature season, resulting in large-scale power outages and other adverse consequences. In addition, the existing distribution boxes have fewer functions.

Utility model content

The purpose of the utility model is to provide a power distribution box on the agricultural grid post, which can well solve the problems in the prior art that the power distribution box has less functions, and the switch is easy to go out of the line and malfunction.

The purpose of this utility model is to realize through the following technical solutions:

A power distribution box on a rural grid post, including: a box body, a power distribution circuit, a cable inlet room, a metering room, a reactive power compensation room, a general inlet room, and an outlet room; the cable inlet room is placed in the cable inlet room Contacts and current transformers for metering, the cable incoming contacts and the current transformers for metering are electrically connected in the power distribution circuit; meters and electric energy management meters are placed in the metering room, and the meters and The electric energy management meter is electrically connected in the power distribution circuit; the reactive power compensation controller, shunt protection fuse, contactor, thermal relay, capacitor, and isolation fuse switch are arranged in the reactive power compensation room; Power compensation controllers, shunt protection fuses, contactors, thermal relays, capacitors, and isolation fuse switches are electrically connected in the power distribution circuit; Meter current transformer; the isolating knife switch, main incoming line switch, and meter current transformer are electrically connected in the power distribution circuit; the meter door, shunt outlet switch, and double-throw grounding knife switch are arranged in the outlet room . Cable outlet contact, characterized in that the cable inlet room is located above the metering room, and is isolated from the metering room by a beam fixed on the box; the reactive power compensation room is located at the cable inlet wire room and the right side of the metering room, and is isolated from the cable inlet room and the metering room by a beam fixed on the box body; the general wire inlet room is located between the cable inlet room and the metering room directly behind the metering room, and is isolated from the cable inlet room and the metering room by a baffle fixed on the box body; the outlet room is located on the right side of the general inlet room and is fixed on The beam on the box body is isolated from the general incoming line room.

The utility model has the advantages of beautiful appearance design, reasonable layout, reduced box volume, saving manufacturing cost, convenient management, and integrated multiple functions.

Description of drawings

The utility model will be described in further detail below according to the accompanying drawings and embodiments.

Fig. 1 is a front view of a power distribution box on an agricultural grid post described in an embodiment of the present invention;

Fig. 2 is a rear view of a power distribution box on an agricultural grid post described in an embodiment of the present invention;

In the figure: 1. Box body; 11. Hanging accessories; 2. Cable inlet room; 21. Cable inlet contact; 22. Current transformer for metering; 3. Measuring room; 31. Meter and electric energy management meter; 4 , Reactive power compensation room; 41, Reactive power compensation controller; 42, Shunt protection fuse; 43, Contactor; 44, Thermal relay; 45, Capacitor; 46, Isolation fuse switch; 5, General incoming line room; 51. Isolation knife switch; 52. Main incoming line switch; 53. Meter current transformer; 6. Outlet room; 61. Instrument door; 62. Branch outlet switch; 63. Double-throw grounding knife switch; 64. Meter Current transformer; 65. Cable outlet contact.

Detailed ways

As shown in Figure 1, a power distribution box on the agricultural grid post of the present utility model is given, a distribution box on the agricultural grid post, including: a box body 1, a cable inlet room 2, a metering room 3, Power compensation room 4, general incoming line room 5, and outgoing line room 6; cable incoming room 2 contains many cable incoming contacts 21 and current transformers 22 for metering; metering room 3 includes metering meters and electric energy management meters 31; The reactive power compensation room 4 contains a reactive power compensation controller 41, a shunt protection fuse 42, a contactor 43, a thermal relay 44, and a capacitor 45;

The main incoming line room 5 contains an isolating knife switch 51, a main incoming line switch 52, and a meter current transformer 53;

The outlet room 6 includes an instrument door 61, a branch outlet switch 62, a double-throw ground knife switch 63, and a cable outlet contact 65.

The cable entry room 2 is located above the metering room 3 and is isolated from the metering room 3 by a beam;

The reactive power compensation room 4 is located on the right side of the cable inlet room 2 and the metering room 3, and is isolated from the cable inlet room 2 and the metering room 3 by a beam; the main line room 5 is located directly behind the cable inlet room 2 and the metering room 3 , and is isolated from the cable inlet room 2 and the metering room 3 by baffles; the outlet room 6 is located on the right side of the main line room 5, and is isolated from the main line room 5 by a beam; the upper part of the box body 1 is provided with a hanging accessory 11; The main incoming line room 5, outgoing line room 6, and reactive power compensation room 4 are all equipped with fans and temperature controllers, and the meters and electric energy management meters are locked by lead seals and/or special locks.

The utility model integrates the functions of metering, remote electric energy management, incoming and outgoing line switch, reactive power compensation, etc., and the different functional units are separated from each other by beams or baffles, which not only ensures the safety of electricity use, but also reduces the size of the box 1 size, saves cost, is easy to manage, and conforms to the safety and practicability of power distribution in rural power grids. The meter and the electric energy management meter 31 are installed in the metering room 3; the cable inlet room 2 is provided with matching contacts, which is convenient for cable access, and the installation position of the current transformer 22 for metering is reserved at the same time, preferably, the meter and the electric energy The management table 31 can be locked by a lead seal and a special lock to prevent electricity theft. Preferably, the main incoming line protection switch 3, the shunt outgoing line switch 62 and the reactive power compensation controller 41 are all provided with relatively independent small doors and door locks. .

The utility model has a beautiful appearance design and a reasonable layout. The upper part of the box body 1 is provided with a hanging accessory 11, which can conveniently hang the box body 1 on the lower end of the transformer. Single, the user can observe the use of electric energy; preferably, in order to prevent the temperature in the box from being too high, fans are installed in the main incoming line room 5, outgoing line room 6, and reactive power compensation room 4, and are equipped with temperature controllers; The internal protection components of the utility model are reasonably configured, reliable in action, and easy to maintain; an isolating knife switch 51 is provided at the upper end of the main incoming line room 5, which has an obvious disconnection point, and the lower end is a shunt outgoing line switch 62, which integrates residual current relays, The switch and AC contactor are integrated, which reduces the internal space and can effectively protect the ground fault, overcurrent, short circuit, undervoltage, etc. of the line; each branch outlet is connected from the lower end of the main branch outlet switch, and the same A shunt outlet switch is provided for shunt protection. Preferably, the utility model is provided with a grounding switch. When the line needs to be overhauled, the line is directly grounded to ensure the personal safety of the staff; the reactive power compensation room 4 is provided with an isolation fuse switch 46. Preferably, as shown in FIG. 2, each shunt is independently protected to effectively protect the capacitor 45. Preferably, in order to strengthen the phase sequence identification of the power grid and prevent electric shock, a corresponding insulating heat shrinkable tube is provided outside the busbar. And there is a detachable plexiglass plate on the top of the easy-to-reach busbar, which is sprayed with red prompts "Electrical danger, pay attention to safety", and has louver holes to enhance the safety of electricity use, which is suitable for heat dissipation and convenient for observation.

Claims (1)

1. distribution box on the rural power grids post comprises: casing (1), distribution loop, cable vault (2), measuring room (3), reactive power compensation chamber (4), total input-wire chamber (5), outlet chamber (6); Described long cable section of ingoing line indoor (2) is settled long cable section of ingoing line contact (21) and metering Current Transformer (22), and described long cable section of ingoing line contact (21) and described metering Current Transformer (22) all are connected electrically in the described distribution loop; Settle gauge table and electric energy management table (31) in the described measuring room (3), described gauge table and electric energy management table (31) are connected electrically in the described distribution loop; Described reactive power compensation chamber (4) is interior settles reactive power compensating controller (41), shunt to protect fuse (42), contactor (43), thermal relay (44), electric capacity (45), isolate fuse cutout (46), and described reactive power compensating controller (41), shunt protect fuse (42), contactor (43), thermal relay (44), electric capacity (45), isolation fuse cutout (46) to be connected electrically in the described distribution loop; Disconnection switch (51), total input-wire switch (52), table meter current transformer (53) are settled in described total input-wire chamber (5); Described disconnection switch (51), total input-wire switch (52), table meter current transformer (53) are connected electrically in the described distribution loop; Described outlet indoor (6) settles instrument door (61), shunt to go out wiretap (62), double-throw ground connection knife switch (63), cable outlet contact (65), it is characterized in that, described cable vault (2) is positioned at described measuring room (3) top, and isolates by the crossbeam that is fixed on described casing with described measuring room (3); Described reactive power compensation chamber (4) is positioned at described cable vault (2) and described measuring room (3) right side, and isolates by the crossbeam that is fixed on the described casing with described cable vault (2) and described measuring room (3); Described total input-wire chamber (5) is positioned at described cable vault (2) and described measuring room (3) dead astern, and isolates by the baffle plate that is fixed on the described casing with described cable vault (2) and described measuring room (3); Described outlet chamber (6) is positioned at right side, described total input-wire chamber (5), and isolates with described total input-wire chamber (5) by the crossbeam that is fixed on the described casing.

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