CN201887401U

CN201887401U - Configuration structure for direct current bus pole change

Info

Publication number: CN201887401U
Application number: CN2010206587651U
Authority: CN
Inventors: 武惠杰
Original assignee: Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Current assignee: Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Priority date: 2010-12-14
Filing date: 2010-12-14
Publication date: 2011-06-29
Anticipated expiration: 2020-12-14

Abstract

The utility model discloses a configuration structure for direct current bus pole change; a DL1-1 direct current knife switch (2), a DL1-2 direct current knife switch (3) are respectively connected between a rectifier transformer (1) and an I-1 bus (4) as well as between a rectifier transformer (1) and an I-2 bus (5); and the I-1 bus (4) and the I-2 bus (5) are respectively connected with a Section B bus (9) and a Section A bus (8). The I-1 bus (4) and the I-2 bus (5) pass through a partition wall (6) and are respectively connected with the Section B bus (9) and the Section A bus (8). The rectifier transformer (1), the DL1-1 direct current knife switch (2) and the DL1-2 direct current knife switch (3) are respectively supported through support components (7). According to the configuration structure for direct current bus pole change, the labor efficiency is greatly improved, the labor intensity is reduced, the knife switches not only can be controlled manually but also can be controlled through a remote Programmable Logic Controller (PLC), so that the control level is improved.

Description

The configuration structure of dc bus change poles

Technical field

The utility model relates to a kind of configuration structure of power line DC bus change poles of direct-flow electricity utilization apparatus.

Background technology

DC power supply has positive and negative electrode, and the polarity of direct-flow electricity utilization apparatus is also fixed generally speaking.In the ordinary course of things, only need to check accurate positive and negative bus position when direct-flow electricity utilization apparatus equipment is carried out outside bus bar configuration, carry out installation and get final product.But the positive and negative electrode of arts demand power consumption equipment is regularly exchanged sometimes, if the mode that at this moment adopts dismounting, replacing that positive and negative bus is installed is changed polarity, will increase difficulty of construction greatly, the process complexity, use duration, thereby influence production obviously is unpractical.Therefore need a kind of configuration structure of changing positive and negative bus polarity easily.

Summary of the invention

The technical problems to be solved in the utility model is: the configuration structure that a kind of new DC bus change poles is provided, need not dismantle bus with the transposing that realizes the positive and negative polarity of bus, reduce the change poles time, enhance productivity, overcome dismounting, the positive and negative bus process complexity of replacing installation that prior art exists, use duration, thus deficiencies such as influence production.

In order to address the above problem, the utility model is taked following technical scheme: it comprises I-1 bus, I-2 bus, be connected DL1-1 direct current knife switch, DL1-2 direct current knife switch respectively between rectifier transformer and I-1 bus, I-2 bus, I-1 bus, I-2 bus are connected with B section bus, A section bus respectively.

I-1 bus, I-2 bus pass partition wall and are connected with B section bus, A section bus respectively.

Rectifier transformer, DL1-1 direct current knife switch, DL1-2 direct current knife switch support by supporting component respectively.

Operation principle of the present utility model: knife switch DL1-1, DL1-2 are responsible for negative pole bus break-make, and knife switch DL2-1, DL2-2 are responsible for the break-make of positive electrode bus.DL1-1, DL2-2 establish chain control, the while break-make, and in like manner DL1-2, DL2-1 also establish chain control, simultaneously break-make.Positive electrode bus II-1, II-2 and negative pole bus I-1, I-2 have mutual interface point at the knife switch secondary side, are communicated with aluminium sheet.

During ordinary production, knife switch DL1-1, DL2-2 closure, DL1-2, DL2-1 disconnect, and at this moment the power supply of drawing from rectifier cabinet is (+) polarity just at A section bus, is negative (-) polarity on B section bus, supplies with process equipment and produces.When technological requirement transposing electric power polarity is that A section bus changes negative pole into, when B section bus changes positive pole into, can disconnect knife switch DL1-1, DL2-2 earlier, closed then DL1-2, DL2-1, just to switch into A section bus be negative (-) polarity to the power supply of sending from rectifier cabinet like this, be (+) polarity just on the B section bus, so far, electric power polarity is switched and is finished.

The beneficial effects of the utility model are: with in the past by the interim hand disassembly bus of workman, the structure that on-the-spot then reversed polarity is again installed is compared, new bus-bar collocation structure can disposablely be finished all installation tasks when construction, no longer need to dismantle repeatedly bus after the operation, only the direct current knife switch of break-make switching correspondence gets final product as requested, has improved efficiency greatly, alleviated labour intensity, knife switch both can manually be controlled, and also can pass through remote PLC control, had improved controlling level.

Description of drawings

Fig. 1 is a structural representation of the present utility model; Among the figure, 1. rectifier transformer, 2.DL1-1 direct current knife switch, 3.DL1-2 direct current knife switch, 4.I-1 bus, 5.I-2 bus, 6. partition wall, 7. supporting component, 8.A section bus, 9.B section bus.

Fig. 2 is an electrical connection logic theory schematic diagram of the present utility model.

Embodiment

Embodiment of the present utility model: as schematically shown in Figure 1, it comprises I-1 bus 4, I-2 bus 5, be connected DL1-1 direct current knife switch 2, DL1-2 direct current knife switch 3 respectively between rectifier transformer 1 and I-1 bus 4, I-2 bus 5, I-1 bus 4, I-2 bus 5 are connected with B section bus 9, A section bus 8 respectively.

Described I-1 bus 4, I-2 bus 5 pass partition wall 6 and are connected with B section bus 9, A section bus 8 respectively.

Rectifier transformer 1, DL1-1 direct current knife switch 2, DL1-2 direct current knife switch 3 support by supporting component 7 respectively.

The utility model changes the configuration mode that positive and negative in the past bus is respectively established a direct current knife switch, divides two places that a direct current knife switch respectively is installed on the bus of each polarity, and its circuit connects as shown in Figure 2.

Claims

1. the configuration structure of a dc bus change poles, it comprises I-1 bus (4), I-2 bus (5), it is characterized in that: be connected DL1-1 direct current knife switch (2), DL1-2 direct current knife switch (3) respectively between rectifier transformer (1) and I-1 bus (4), I-2 bus (5), I-1 bus (4), I-2 bus (5) are connected with B section bus (9), A section bus (8) respectively.

2. the configuration structure of dc bus change poles according to claim 1 is characterized in that: I-1 bus (4), I-2 bus (5) pass partition wall (6) and are connected with B section bus (9), A section bus (8) respectively.

3. the configuration structure of dc bus change poles according to claim 1 is characterized in that: rectifier transformer (1), DL1-1 direct current knife switch (2), DL1-2 direct current knife switch (3) support by supporting component (7) respectively.