CN205248643U - Preceding wiring front maintenance's direct current divides electric cabinet - Google Patents

Abstract

The utility model discloses a preceding wiring front maintenance's direct current divides electric cabinet provides the dodge gate and divides two parts from top to bottom, and it is regional with operation management to divide the cabinet body into installation and debugging, and the air switch trompil is reserved to first piecemeal activity door, and fixed mounting mode in direct current copper bar, the air switch adoption cabinet can ensure that the dodge gate openly exposes air switch after first piecemeal activity door closes and closes, and binding post hides at second piecemeal activity door rear. Through the method, solved the problem that the direct current divides the preceding wiring front maintenance of electric cabinet, reduced the device installation on the dodge gate, effectively reduce the heavy burden of dodge gate. Structural function regionalism is clear for this screen cabinet, has the characteristics that the construction installation is convenient reliable, accord with on -the -spot operation management custom, is applicable to preceding wiring front maintenance's direct current divides electric cabinet.

Description

A DC power distribution cabinet with front-wiring and front-maintenance

technical field

The utility model belongs to the field of electric equipment, in particular to a direct current distribution cabinet for maintenance before wiring.

Background technique

With the construction and promotion of the national grid standard distribution smart substation, the prefabricated cabin has gradually replaced the relay room or control room. The prefabricated cabin includes the cabin body and the secondary equipment screen cabinet inside. The production, assembly, wiring, commissioning and other work are completed in the factory, and the on-site installation is carried out with the prefabricated cabin as a unit, realizing the "standardized design, factory processing, and assembled construction. ", which shortened the on-site construction period and improved the on-site work efficiency.

Due to the limitation of the transportation and manufacturing conditions of the prefabricated cabin, the size of the prefabricated cabin has certain restrictions. In order to increase the installation position of the secondary screen cabinet in the prefabricated cabin and improve the space utilization rate of the prefabricated cabin, the screen cabinet in the cabin adopts a double-row layout scheme. The screen cabinet in the cabin needs to be installed close to the bulkhead, and the rear and sides of the screen cabinet cannot be opened. Wiring, maintenance, operation, and management need to be realized on the front, resulting in a large contradiction between the front display operation and installation and commissioning. In addition, the DC distribution cabinet in the prefabricated cabin needs to take into account the complexity of the internal installation components, the front display has many operating components, the cabinet contains live copper bars, construction safety and other requirements, and the safety requirements are high. Therefore, in order to meet on-site installation, The structure and layout of the DC distribution cabinet must be redesigned to meet various needs such as commissioning, operation, and maintenance.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a DC distribution cabinet with front wiring and maintenance, which has the characteristics of operation management, installation and maintenance divided into areas, and solves the problems of the DC distribution cabinet in the prior art. The contradiction between operation and installation and debugging is displayed on the front, which improves the safety of on-site construction and the convenience of operation management.

In order to solve the above problems, the utility model specifically adopts the following technical solutions:

A DC distribution cabinet for maintenance before wiring, characterized in that it includes a cabinet frame, the cabinet frame is provided with a glass front door and a movable door in turn from the outside to the inside, and the glass front door is connected to the cabinet frame through a first rotary hinge One side of the movable door, the movable door is connected to the other side of the cabinet frame through the second rotary hinge, and the opening space of the movable door is reserved after the glass front door is opened, and the movable door includes an upper movable door and a lower movable door.

The aforementioned DC power distribution cabinet for maintenance before wiring is characterized in that the main air switch for incoming lines, the air switch for branch feed-out, insulation monitoring CT, general installation strip assembly and DC incoming air switch are arranged in the cabinet frame. The main air switch of the incoming line is connected to the copper bar of the DC incoming line through the air breaker joint. The main air switch of the incoming line is installed on the first U-shaped rail, and the first U-shaped rail is fixed on the air switch On the bracket fixing plate, the lower part of the incoming main air switch is provided with several side-by-side branch branch feed-out air switches, and the lower end of the incoming main air switch is connected to each branch branch through an interconnected copper bar. Feed-out air switch, the lower part of the feed-out air switch of the branch branch is provided with an insulation monitoring CT, and the insulation monitoring CT is installed on the CT mounting plate, the main air switch of the incoming line, the feed-out air switch of the branch branch, The insulation monitoring CT is set in the cabinet frame corresponding to the upper movable door, and the universal installation bar assembly, horizontal terminal block, and grounding copper bar are arranged in the cabinet frame corresponding to the lower movable door. There is a second U-shaped rail for installing and fixing the horizontal terminal row, and the bottom of the cabinet frame is provided with a grounding copper bar.

The aforementioned DC power distribution cabinet with maintenance before wiring, is characterized in that the copper bar of the DC incoming line is fixed on the copper bar fixing bar, and an insulator is arranged between the copper bar of the DC incoming line and the copper bar fixing bar .

The aforementioned DC distribution cabinet for maintenance before wiring is characterized in that the cabinet frame is provided with installation columns along the height direction of the cabinet frame, and the two installation columns form a group and are symmetrically arranged on two sides of the cabinet frame. On the side, the installation column includes a front installation column and a rear installation column, the copper bar fixing strip is fixed on the rear installation column, an open bracket fixing plate, a CT mounting plate, a general mounting bar assembly, a second U-shaped rail and a grounding The copper bars are fixed on the front mounting columns.

The aforementioned DC power distribution cabinet with maintenance before wiring is characterized in that a vertical wire groove is provided in the cabinet frame, and the vertical wire groove is arranged on the side of the cabinet frame different from the second rotary hinge.

The aforementioned DC distribution cabinet for maintenance before wiring is characterized in that heat dissipation holes are provided under the glass front door, and the glass front door adopts an external hanging form, which is connected and fixed to the cabinet frame through a door lock.

The aforementioned DC distribution cabinet for maintenance before wiring is characterized in that indicator lights and instruments are installed on the upper movable door, and openings for the main air switch for incoming lines and air switches for branch feedouts are reserved. Openings, the openings of the incoming line main air switch and the branch branch feed-out air switch respectively correspond to the incoming line main air switch and the branch branch feed-out air switch in the cabinet frame.

The aforementioned DC power distribution cabinet with maintenance before wiring is characterized in that the movable door is connected and fixed to the cabinet frame through a lock.

The aforementioned DC distribution cabinet with maintenance before wiring is characterized in that a lintel is provided on the top of the cabinet frame corresponding to the glass front door, and a wall bracket is provided on the top of the side of the cabinet frame that is different from the lintel.

Beneficial effects of the utility model: The utility model provides a DC distribution cabinet for maintenance before wiring, which divides the cabinet frame into two accommodating areas for operation management and installation and debugging corresponding to the upper movable door and the lower movable door. Components that do not require on-site installation, such as air switches, DC incoming copper bars, and insulation monitoring CTs, are fixed and installed in the upper area of the cabinet frame. Terminal blocks and other components that require on-site installation and wiring are installed in the lower area of the cabinet frame. Indicator lamps, instruments and other devices that need to be monitored during operation, and an air switch opening is reserved. After closing the door, the air switch installed in the accommodation area can be exposed, and the air switch operation can be performed on the front to monitor the running status; after the lower movable door is opened The wiring can be installed conveniently, and the rear wiring area can be blocked after being closed. The structure of this cabinet can realize the maintenance before the front wiring of the DC distribution cabinet, and can be installed directly close to the prefabricated bulkhead to improve the space utilization of the prefabricated cabin. Management and installation and maintenance needs.

Description of drawings

Fig. 1 is the front view of the utility model after removing the glass front door;

Fig. 2 is a front view of the utility model;

Fig. 3 is the front view of the utility model after removing the glass front door and the dodge door;

Fig. 4 is a left side view of the utility model;

Fig. 5 is a top view of the utility model.

The reference signs have the following meanings:

1: cabinet frame; 2: glass front door; 3: first rotary hinge; 4: second rotary hinge; 5: upper movable door; 6: lower movable door; 7: main air switch for incoming line; 8: branch branch feeder Outlet air switch; 9: Insulation monitoring CT; 10: Universal installation strip assembly; 11: DC incoming copper bar; 12: Air break connector; 13: First U-shaped rail; 14: Air open bracket fixing plate; Copper bar; 16: CT mounting plate; 17: second U-shaped rail; 18: grounding copper bar; 19: copper bar fixing strip; 20: insulator; 21: front mounting column; 22: rear mounting column; 23: vertical line Slot; 24: cooling hole; 25: door lock; 26: indicator light; 27: instrument; 28: main air switch opening for incoming line; 29: branch feed-out air switch opening; 30: lock; 31: lintel; 32 wall brackets.

detailed description

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

As shown in Figures 1 to 5, a DC distribution cabinet for maintenance before wiring includes a cabinet frame 1, and the cabinet frame 1 is provided with a glass front door 2 and a movable door sequentially from the outside to the inside, that is, the glass front door is set on The outermost side of the cabinet frame, and the movable door is arranged on the inner side of the glass front door. The glass front door 2 is connected to one side of the cabinet frame 1 through the first rotary hinge 3, which can be rotated by 180°. The movable door is connected through the second rotary hinge. 4 is connected to the other side of the cabinet frame 1. Therefore, the glass front door 2 and the movable door are relatively opened, and the corresponding first rotary hinge 3 and the second rotary hinge 4 are installed on both sides of the cabinet frame 1. The glass front door 2 After opening, the opening space of the movable door is reserved, which does not affect the opening of the inner movable door. The front of the glass front door 2 is made of transparent glass, which is convenient for observing the operation of the equipment, and the bottom of the glass front door 2 is reserved with cooling holes 24, which is convenient for equipment to dissipate heat , the glass front door 2 adopts an external hanging form, and is connected and fixed with the cabinet frame 1 through a door lock 25. The movable door includes an upper movable door 5 and a lower movable door 6, and the upper movable door 5 and the corresponding cabinet frame 1 part constitute the upper part The accommodation area, the lower movable door 6 and the corresponding part of the cabinet frame 1 constitute the lower accommodation area, the upper accommodation area is arranged on site without the need to install fixed devices for wiring, and the lower accommodation area is arranged on site to install wiring without display and observation devices , the terminal block, and the movable door are connected and fixed with the cabinet frame 1 through the lock catch 30 to ensure that they are locked with the cabinet frame during normal operation or during transportation. When installation and debugging are required, loosen the lock catch 30 and turn the corresponding movable door. Upper dodge door 5, lower dodge door 6 can independently open and close, lock respectively, and on the dodge door 5, there are few small-sized equipment such as pilot lamp 26, instrument 27 etc. wiring, light weight, can rotate together with upper dodge door 5, After the door is closed, the running status of the equipment can be displayed on the front, and the opening 28 for the main air switch of the incoming line and the opening 29 for the air switch feeding out of the branch branch are reserved. The switch openings 29 are respectively corresponding to the main air switch 7 of the incoming line and the air switch 8 of the branch branch feed-out in the cabinet frame 1. After closing the door, the air switch installed in the accommodation area can be exposed, and the air switch can be performed on the front of the upper movable door. operation. After the lower dodge door 6 is opened, the installation wiring operation can be carried out, and the rear terminal and devices can be effectively blocked after the door is closed.

Further, the cabinet frame 1 is provided with an incoming main air switch 7, a branch branch feed air switch 8, an insulation monitoring CT9, a universal installation strip assembly 10, and a DC incoming copper bar 11. The incoming main air The switch 7 is connected to the DC incoming line copper bar 11 through the air-opening joint 12, and the incoming main air switch 7 is installed on the first U-shaped rail 13, and the first U-shaped rail 13 is fixed on the air-opening bracket fixing plate 14 Above, the lower part of the main air switch 7 of the incoming line is provided with several side-by-side branch branch feed-in air switches 8, and the lower end of the main air switch 7 of the incoming line is connected to each branch through interconnecting copper bars 15. Branch feed-in air switch 8, the lower part of the branch feed-out air switch 8 is provided with an insulation monitoring CT9, and the insulation monitoring CT9 is installed on the CT mounting plate 16 for monitoring each branch feed-out air switch 8 In the case of circuit insulation, the main incoming line air switch 7, the branch branch feed-in air switch 8, and the insulation monitoring CT9 are arranged in the cabinet frame 1 corresponding to the upper movable door 5, and the general installation strip assembly 10, the second The U-shaped rail 17 and the grounding copper bar 18 are arranged in the cabinet frame 1 corresponding to the lower movable door 6 , that is, behind the lower movable door 6 . The universal installation strip assembly 10 is used to install devices that require on-site installation and wiring but does not need to be observed and displayed during operation. A second U-shaped rail 17 for installing and fixing the horizontal terminal row is provided below the universal installation strip assembly 10. The bottom of the cabinet frame 1 is provided with a grounding copper bar 18, which provides a number of grounding terminals, that is, arranged behind the lower movable door, for grounding equipment and cables in the cabinet, and the DC incoming line copper bar 11 is installed and fixed on the copper bar fixing bar 19, an insulator 20 is provided between the DC incoming copper bar 11 and the copper bar fixing bar 19 for isolation.

Further, the cabinet frame 1 is provided with installation columns along the height direction of the cabinet frame 1. Two installation columns form a group and are symmetrically arranged on both sides of the cabinet frame 1. The installation columns include front installation columns 21, The rear installation column 22, the copper bar fixing strip 19 is fixed on the rear installation column 22, the open bracket fixing plate 14, the CT mounting plate 16, the universal installation bar assembly 10, the second U-shaped rail 17 and the grounding copper bar 18 are fixed Install on the front column 21.

Further, the cabinet frame 1 is provided with a vertical wire groove 23, and the vertical wire groove 23 is arranged on the side of the cabinet frame 1 different from the second rotary hinge 4, and runs through the upper accommodation area and the lower accommodation area, The two sides of the cabinet frame 1 are arranged separately with the second rotary hinge 4 to facilitate wiring.

In addition, a lintel 31 is provided on the top of the cabinet frame 1 corresponding to the glass front door 2, and a wall bracket 32 is provided on the top of the side of the cabinet frame 1 that is different from the lintel 31, which is used for fixing to the wall when the wall is installed. .

The DC power distribution cabinet provided by the utility model, which is maintained before wiring and before leaving the factory, has completed the installation of fixed equipment, such as air switches, DC incoming copper bars, insulation monitoring CTs and other devices, which are mainly distributed behind the upper movable door and moved below. Devices such as terminal blocks are arranged behind the door for on-site construction wiring. The back of the screen cabinet is attached to the prefabricated bulkhead for installation and fixing, and the front is wired, maintained and operated. During on-site construction, open the lower movable door to carry out terminal wiring. After the construction is completed, close the lower movable door to cover the construction area. Under normal circumstances, there is no need to construct the components behind the upper movable door. During operation, under normal circumstances, observe the indicator lights and instrument status through the glass front door. When operation is required, open the glass door and directly operate the air switch on the upper movable door area without opening the movable door.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (9)

1. the direct current of safeguarding before wiring before a kind divides electric cabinet, it is characterized in that, comprise cabinet framework, described cabinet framework is provided with glass front door, dodge gate from outside to inside successively, described glass front door is connected in a side of cabinet framework by the first rotary gemel, described dodge gate is connected in the opposite side of cabinet framework by the second rotary gemel, described glass front door reserves dodge gate after opening and opens space, and described dodge gate comprises dodge gate, lower dodge gate.

2. the direct current of safeguarding before a kind of front wiring according to claim 1 divides electric cabinet, it is characterized in that, in described cabinet framework, be provided with the total air switch of inlet wire, branch road branch feeds out air switch, insulation monitoring CT, general mounting bar assembly and direct current inlet wire copper bar, the total air switch of described inlet wire is opened joint access direct current inlet wire copper bar by sky, the total air switch of described inlet wire is arranged on the first U-shaped rail, described the first U-shaped rail is fixed on sky and opens on bracket fixing plate, the bottom of the total air switch of described inlet wire is provided with several branch road branches that are set up in parallel and feeds out air switch, the lower end outlet portion of the total air switch of described inlet wire accesses each branch road branch by interconnected copper bar and feeds out air switch, the bottom that described branch road branch feeds out air switch is provided with insulation monitoring CT, described insulation monitoring CT is arranged on CT installing plate, the total air switch of described inlet wire, branch road branch feeds out air switch, insulation monitoring CT is located in the cabinet framework corresponding with upper dodge gate, described general mounting bar assembly is located in the cabinet framework corresponding with lower dodge gate, described general mounting bar assembly below is provided with the second U-shaped rail for fixed lateral terminal row is installed, the bottom of described cabinet framework is provided with grounding copper bar.

3. the direct current of safeguarding before a kind of front wiring according to claim 2 divides electric cabinet, it is characterized in that, described direct current inlet wire copper bar is fixed on copper bar fixed strip, between described direct current inlet wire copper bar and copper bar fixed strip, is provided with insulator.

4. the direct current of safeguarding before a kind of front wiring according to claim 3 divides electric cabinet, it is characterized in that, in cabinet framework, be provided with the installation column arranging along the short transverse of cabinet framework, two installation columns are one group, be symmetricly set on the both sides of cabinet framework, described installation column comprises front installation column, rear installation column, described copper bar fixed strip is fixed on rear installation column, and sky is opened bracket fixing plate, CT installing plate, general mounting bar assembly, the second U-shaped rail and grounding copper bar and is fixed on front installation column.

5. the direct current of safeguarding before a kind of front wiring according to claim 2 divides electric cabinet, it is characterized in that, in described cabinet framework, be provided with vertical wire casing, described vertical wire casing is arranged on a side that differs from the second rotary gemel on cabinet framework.

6. the direct current of safeguarding before a kind of front wiring according to claim 1 divides electric cabinet, it is characterized in that, the below of described glass front door is provided with louvre, and described glass front door adopts plug-in form, is connected and fixed by door lock and cabinet framework.

7. the direct current of safeguarding before a kind of front wiring according to claim 2 divides electric cabinet, it is characterized in that, on described upper dodge gate, indicator lamp, instrument are installed, and be reserved with the total air switch perforate of inlet wire, branch road branch feeds out air switch perforate, the total air switch perforate of described inlet wire, branch road branch feed out air switch perforate respectively with the total air switch of inlet wire in cabinet framework, that branch road branch feeds out air switch is corresponding.

8. the direct current of safeguarding before a kind of front wiring according to claim 1 divides electric cabinet, it is characterized in that, described dodge gate is connected and fixed by snap close and cabinet framework.

9. the direct current of safeguarding before a kind of front wiring according to claim 2 divides electric cabinet, it is characterized in that, the top of described cabinet framework is provided with lintel corresponding to glass front door place, and the side roof part that described cabinet framework differs from lintel is provided with stent wall.