CN201113331Y - Outdoor low-voltage pole-mounted integrated distribution box - Google Patents

Abstract

The utility model relates to an outdoor integrated distribution box on a low-voltage pole, which is used for power supply or distribution. It has a box body, which is divided into three rooms: the main switch room, the metering room, and the reactive power compensation room. There are also incoming and outgoing line rooms outside the box; Metering current transformer and sampling current transformer; there is a sealing rubber pad where the cable passes through the box of the main switch room; there is an on-site management agency in the metering room; the main switch knife, capacitor, A miniature circuit breaker, a contactor, and a capacitance compensation controller; a mounting bracket is arranged on the top of the box; the operating shaft of the opening and closing operating mechanism of the main switch extends out of the main switch room of the box. The utility model integrates electric energy measurement, measurement and control, and low-voltage reactive power compensation, which can improve power factor, improve voltage quality, reduce line loss, and have a high degree of intelligence; small volume, compact structure, good sealing performance, and simple and convenient installation. long lasting.

Description

Outdoor low-voltage pole-mounted integrated distribution box

technical field

The utility model relates to the technical field of power distribution boxes for power supply or power distribution, in particular to an outdoor low-voltage pole-mounted comprehensive power distribution box that integrates power conversion, distribution, control protection, and line isolation.

Background technique

At present, the outdoor distribution boxes used in the low-voltage side of urban and rural public transformers in China have the following defects: first, the function is single, and it is only used for line isolation, which cannot improve the power factor, improve the voltage quality, and reduce the line loss; The rainproof performance is poor, and the connection method of the cable needs to be extended from the outside of the box shell to the inside of the box body, and rainwater is easy to enter; the third is that the installation is inconvenient, and it needs to be fixed by the chassis; the fourth is that the operation is not safe, and the door of the equipment needs to be opened. Opening and closing operations are possible.

Contents of the invention

The purpose of this utility model is to provide an outdoor low-voltage pole-mounted comprehensive distribution box for the deficiencies of the above-mentioned prior art, so that it has multiple functions such as electric energy conversion, distribution, control and protection, and line isolation, and improves the power factor to the greatest extent. , Improve voltage quality, reduce line loss, reduce equipment investment costs, and reduce labor intensity of workers in the power supply department; and has the characteristics of simple structure, reliable performance, light weight, convenient installation, operation and maintenance, and long service life.

In order to achieve the above purpose, the technical solution of the utility model is as follows: an outdoor low-voltage pole integrated distribution box has a box body, and the box body is divided into three rooms: the main switch room is on the right side of the front, and the metering room is on the left side , behind the metering room is a reactive power compensation room; outside the box and connected with the main switch room, there are two small rooms, which are the incoming line small room at the rear upper end of the main switching room and the outgoing line at the right lower end of the main switching room Small room; the main switch room is equipped with a main switch, which is installed through an insulator fixed on the box; the main switch is equipped with a fuse, and an operating mechanism, connecting the wiring copper bars of the incoming and outgoing lines, and the wiring copper bars of the incoming and outgoing lines. There are metering current transformers and sampling current transformers connected between the rows; the cables are led from the low-voltage terminal of the transmission transformer to the incoming line compartment, connected to the incoming line terminal of the main switch and connected to the copper bar, and passed through the metering current transformer and sampling current transformer. , connected to the wiring copper bar at the outlet end of the main switch, and then introduced into the outlet room, and then led to the electrical equipment from the outlet room; a sealing rubber pad is provided at the box where the cable passes through the main switch room to protect against voltage and rain Sealing function; the terminal of the wiring copper bar of the incoming and outgoing lines is made into a terminal for easy cable connection; the outgoing line ring 1 for protecting the cable insulation layer is installed at the entrance and exit of the cable; The power meter, electric energy meter and junction box form the user site management organization. The metering room is equipped with a door panel, and an observation window is installed on the door panel; Miniature circuit breakers, contactors, capacitors, and capacitance compensation controllers for automatic switching control. The above-mentioned components are electrically connected to each other; the reactive power compensation room is also equipped with a door panel; Bracket, the mounting bracket can be directly fixed with the transformer mounting bracket on the wire post; for the convenience of operation, the operating shaft of the opening and closing operating mechanism extends out of the main switch room of the box body.

Due to the adoption of the above-mentioned technical scheme, an outdoor low-voltage pole integrated distribution box of the present invention integrates electric energy measurement, measurement and control, and low-voltage reactive power compensation, and has a high degree of intelligence; it is small in size, compact in structure, and sealed Good performance, simple and convenient installation, long service life; users can reduce equipment investment costs, improve power factor, improve voltage quality, and reduce line loss.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

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

FIG. 2 is a rear view of FIG. 1 .

Fig. 3 is a left side view of Fig. 1 .

In the figure: 1. Mounting bracket, 2. Box roof, 3. User site management organization, 4. Observation window, 5. Door panel, 6. Door handle with lock, 7. Door panel, 8. Copper bar, 9. Rubber gasket , 10, main switch, 11, lifting ring, 12, measuring current transformer, 13, connecting copper bar 14, copper bar, 15, outlet ring, 16, insulator, 17, fuse, 18, sampling current transformer, 19 , operating mechanism, 20, incoming line terminal, 21, cable incoming small room, 22, cable outgoing line small room, 23, outgoing line terminal, 24, box body, 25, capacitor circuit main switch knife, 26, circuit breaker, 27 , contactor, 28, door panel, 29, capacitor, 30, capacitance compensation controller, 31, grounding device, 32, operation shaft.

Detailed ways

As shown in Figures 1-3, an outdoor low-voltage pole-mounted integrated power distribution box of the present invention has a box body 24 with a grounding device 31; the box body is divided into three rooms: the main switch on the right side of the front The left side is the metering room, and the reactive power compensation room is behind the metering room; there are two small rooms outside the box and connected with the main switch room, which are the incoming line room 21 at the rear upper end of the main switch room and the The outlet small room 22 at the lower right side of the main switch room; the main switch 10 is arranged in the main switch room, and the main switch is installed through the insulator 16 fixed on the box; the main switch is provided with a fuse 17 and an operating mechanism 19, Connect the wiring copper bars 8 and 14 of the incoming and outgoing lines, and the wiring copper bars of the incoming and outgoing lines are connected with a metering current transformer 12 and a sampling current transformer 18; The incoming terminal wiring copper bar of the switch 10, through the measuring current transformer and the sampling current transformer, connects the connecting copper bar 13 to the outgoing terminal wiring copper bar 14 of the main switch, and then introduces the outgoing line chamber 22, and leads to the power consumption chamber from the outgoing line chamber. Equipment; the main switch room is equipped with a door panel 7, and a door handle with a lock is provided on the door panel; a sealing rubber pad 9 is provided at the box where the cable passes through the main switch room to provide voltage resistance protection and rainproof sealing; The terminals 20 and 23 of the wiring copper bars of the incoming and outgoing lines are made into terminals 20 and 23 for easy cable connection; the outgoing line ring 15 for protecting the cable insulation layer is installed at the entrance and exit of the cable; Watt-hour meter, electric energy measurement combined junction box constitute user site management organization 3, metering room is equipped with door panel 5, on the door panel is provided with observation window 4 and door handle with lock 6; Switch knife 25, miniature circuit breaker 26 and contactor 27 for controlling and protecting capacitors, capacitor 29, and capacitance compensation controller 30 for automatic switching control. The above-mentioned components are electrically connected to each other; the reactive power compensation room is also equipped with a door panel 28. There is a door handle with a lock on the door panel; for easy installation, a mounting bracket 1 is provided on the top of the box body 24, and the mounting bracket can be directly fixed with the transformer mounting bracket on the wire post; the said mounting bracket 1 is It is fixed on the box top plate 2 on the top of the box body, and the box top plate 2 and the box body 24 are detachably connected; for easy operation, the operating shaft 32 of the opening and closing operating mechanism 19 extends out of the main switch of the box body 24; It is convenient to carry, and a hoisting ring 11 is provided on the box roof 2.

Claims (5)

1. An outdoor integrated distribution box on a low-voltage pole, which has a box body (24) and a grounding device (31) on the box body. It is characterized in that: the box body is divided into three rooms: the main switch room on the right side of the front, The left side is the metering room, and behind the metering room is the reactive power compensation room; there are two small rooms outside the box and connected with the main switch room, which are the incoming line room (21) at the rear upper end of the main switch room and the The outlet room (22) at the lower right side of the main switch room; a main switch (10) is arranged in the main switch room, and a fuse (17) and an operating mechanism (19) are arranged on the main switch room to connect the wiring of the incoming and outgoing lines Copper bars (8, 14), metering current transformers (12) and sampling current transformers (18) are connected between the wiring copper bars of the incoming and outgoing lines; cables are led from the low-voltage terminal of the transmission transformer to the incoming line chamber (21), Connect to the main switch (10), and then introduce the outgoing line chamber (22), from which the outgoing line chamber leads to the electrical equipment; a sealing rubber pad (9) is provided at the box where the cable passes through the main switch chamber; The active watt-hour meter, the reactive watt-hour meter, and the combined junction box for electric energy measurement form the user site management organization (3); in the reactive power compensation room, the main switch knife (25), capacitor (29), control and A miniature circuit breaker (26) and a contactor (27) for protecting capacitors, and a capacitance compensation controller 30 for automatic switching control; a mounting bracket (1) is provided on the top of the casing (24); said The operating shaft (32) of the opening and closing operating mechanism (19) stretches out of the main switch room of the casing (24). 2. An outdoor low-voltage pole-mounted integrated distribution box according to claim 1, characterized in that terminals (20, twenty three). 3. An outdoor integrated distribution box on a low-voltage pole according to claim 1, characterized in that: an outlet ring (15) for protecting the insulation layer of the cable is installed at the entrance and exit of the cable. 4. An outdoor low-voltage pole integrated distribution box according to claim 1, characterized in that: said installation bracket (1) is fixed on the box roof (2) set on the top of the box body, and the box Top plate (2) is detachably connected with casing (24). 5. An outdoor integrated distribution box on a low-voltage pole according to claim 4, characterized in that: a hoisting ring (11) is provided on the top plate (2) of the box.

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