KR101094579B1 - Variable power distribution unit - Google Patents

Abstract

A variable power distribution device is provided in which a circuit breaker is provided to provide a connector, a connector connected to the connector is provided on the back plane, and the characteristics of the circuit breaker can be changed by attaching and detaching the connector of the back plane and the unit. do. The proposed variable power distribution device includes one or more backplanes and one or more breaker units, which are configured to be detachably electrically connected using a connector, wherein the backplane includes an input terminal for inputting power from an external source, An input connector to be connected, an output connector to which power passing through the breaker unit is connected, and an output terminal connected to the output connector to output power to the outside, and the breaker unit includes a circuit breaker that cuts off power by an overcurrent, And a unit input connector for connecting one end of the circuit board and an input connector of the backplane, and a unit output connector for connecting the other end of the circuit breaker and the output connector of the backplane.

Power, Distribution, Sensors, Variable, Busbars, Breakers, Backplanes

Description

Variable power distribution unit {Variable power distribution unit}

The present invention relates to a variable power distribution device, and more particularly, to reduce only the down time by replacing only the failed unit even in the event of a failure, and load management by collecting the data of the sensors included in each breaker unit And it relates to a variable power distribution device that can manage the power usage history, power quality history, and the like.

In general, a power distribution device is a device for distributing power supplied from a power source such as a distribution panel to a plurality of load devices.

1 is a block diagram of a conventional power distribution device. As shown in FIG. 1, the conventional power distribution device 10 includes a main circuit breaker 12 into which main power from a switchgear and the like is input, and an input circuit breaker 14 into which power passed through the main circuit breaker 12 is input. And, when the power passing through the input circuit breaker 14 passes through the power backup device 30, the output circuit breaker 16 to which the output of the power backup device 30 is input, and the power passed through the output circuit breaker 16 The distribution circuit breaker 18 is input, and the power passing through the distribution circuit breaker 18 is configured to be input to the plurality of loads 20. Here, when the power backup device 30 is not provided, the input circuit breaker 14 and the output circuit breaker 16 are excluded from the power transmission system, and the power passing through the main circuit breaker 12 is immediately distributed to the circuit breaker 18. To be entered). The distribution circuit breakers 18 are provided with the number determined in advance at the time of factory shipment.

Each breaker 12, 14, 16, 18 is a breaker that is tripped (blocked) by overcurrent, respectively. When the overcoil exceeds the reference value, the breaker operates (trips) to open the circuit.

However, the power required by the load 20 includes AC and DC, and the type of the power backup device 30 is determined according to the type of the load 20, that is, the AC load or the DC load. The types of breakers 16 and 18 used in the power distribution device 10 are determined. This is because the power after passing through the power backup device 30 varies depending on the type of the power backup device 30. Therefore, when the power backup device 30 is for AC, for example, for UPS, the output breaker 16 and the distribution circuit breaker 18 must also be for AC. When the power backup device 30 is for DC, for example, a battery and a charger, the output circuit breaker 16 and the distribution circuit breaker 18 must also be DC.

In addition, if the space where the power distribution device 10 is used is a place where strict indoor temperature is required, such as a communication room, the operation of the air conditioner is essential.

By the way, although the air conditioner is a device using AC power, it is not preferable to connect to the same power distribution device 10 together with the communication equipment, for example. This is because the air conditioner has a large variation in power consumption during operation and at rest, and generates undesirable electrical phenomena such as noise by driving the motor, which may adversely affect the precision devices connected together. Therefore, in the related art, a power distribution device must be separately provided as shown in FIG. 2.

2 is a block diagram of a power distribution system in which a conventional power distribution device is installed. As shown in FIG. 2, the conventional power distribution system includes an AC distributor 10a for an AC load 20a, a DC distributor 10b for a DC load 20b, and an air conditioner load ( Distributors 10c for air conditioners for 20c are provided respectively. In the switchgear 50, three breakers 60a, 60b and 60c are provided, and each of the distributors 10a, 10b and 10c receives power from each breaker 60a, 60b and 60c of the switchgear 50. . Therefore, the mixing is prevented as much as possible in the power supply system from the substation 40. The AC power backup device 30a may be connected to the AC distributor 10a, and the DC power backup device 30b may be connected to the DC distributor 10b, respectively.

By the way, taking the AC power distribution device 10a as an example, the characteristics of the circuit breakers 12a, 14a, 16a, and 18a provided therein, that is, whether AC or DC are used, three-phase AC or single phase The classification of the AC type, the current capacity, the number of circuit breakers and the like are all embedded in the housing while being determined at the time of factory shipment. Therefore, it is not easy for the operator to add or change. This is exactly the same in the case of the DC power distribution device 10b and the air conditioner power distribution device 10c.

Thus, for example, in the power distribution device 10a provided with 10 distribution circuit breakers 18a so as to connect 10 AC loads 20a, the power distribution device 10a is further connected to connect to the 11th load. You must buy one more.

In addition, since the AC load and the DC load cannot be mixed and connected in one power distribution device, even if there is an unused distribution circuit breaker 18b in the adjacent DC power distribution device 10b, the AC breaker 18b is used. It cannot be used for the molten load 20a.

In addition, when the amount of current to be used in the load 20a suddenly increases due to the introduction of a new load, the current capacity cannot be changed arbitrarily. Therefore, there is a problem that it is impossible or greatly difficult to replace, discard, install, expand or expand, maintain, or repair a circuit breaker according to the disposal, installation, expansion or expansion of the load.

On the other hand, a plurality of circuit breakers (60a, 60b, 60c) provided in the switchgear 50 is to supply power independently for each of the power distribution device (10a, 10b, 10c), respectively. This is to prevent adverse effects on the power distribution devices 10b and 10c connected to the other switchgear breaker systems 60b and 60c when an abnormality occurs in one switchgear breaker system (for example, 60a). It is a valid configuration.

However, in such a structure, there is a problem that power supply is cut off in the power distribution device (for example, 10a) connected to the system of the switchgear breaker 60a. That is, since it depends only on a single source (one switchgear breaker) as an input power source of the power distribution device, there is a disadvantage that the dependency on the fault of the power system is too large.

In addition, the conventional power distribution device (10a, 10b, 10c) can not be mixed with the AC and DC, the power distribution device for AC (10a) and the power distribution device for DC (10b) was to be separated and operated, air conditioning The electric power distribution device 10c also had to be operated separately. Therefore, since three power distribution devices 10 must be purchased and installed, there is a problem in that it is economically and spatially burdened.

On the other hand, the breakers 12, 14, 16, and 18 provided in the conventional power distribution device 10 were simply configured as breakers (eg, MCCBs) that are tripped (opened) when an overcurrent flows. Therefore, it is not possible to measure the power supply state, voltage, current, leakage current, whether the breaker is tripped, etc., which can grasp various states of the breakers and the load 20, and prevent human and physical damage due to a power failure or a short circuit. I could not cope quickly.

SUMMARY OF THE INVENTION The present invention has been devised in view of the problems of the prior art, and its object is to provide a connector by uniting a breaker, and to provide a connector connected to the connector on the backplane, and then detaching the connectors between the backplane and the unit. It is to provide a variable power distribution device that can change the characteristics of the circuit breaker by.

Another object of the present invention is to provide a power backup device such as a UPS, a battery and a charger, or a variable power distribution device capable of accommodating both AC (three-phase AC, single-phase AC) and DC characteristics of a load.

Still another object of the present invention is to provide a variable power distribution apparatus capable of accommodating a breaker for power for an air conditioner.

It is still another object of the present invention to provide a variable power distribution apparatus for measuring an input state, a voltage, a current, a leakage current, a tripping state of a breaker, etc., which can grasp the state of various loads on a breaker.

Still another object of the present invention is to provide a variable power distribution apparatus in which a plurality of breakers are provided in a switchgear, so that power is supplied from one or more switchgear breakers to one power distribution device, thereby greatly reducing power supply dependence.

In order to achieve the above object, the variable power distribution apparatus according to the present invention includes one or more backplanes and one or more breaker units configured to be detachably connected to each other using a connector, and the backplane includes: An input terminal for inputting power from the outside, an input connector connected to the input terminal, an output connector for connecting power passing through the breaker unit, and an output terminal for outputting power externally connected to the output connector, the breaker unit includes: And a unit input connector connecting one end of the breaker and an input connector of the backplane, and a unit output connector connecting the other end of the breaker and the output connector of the backplane.

The backplane includes a main backplane and a distribution backplane, the input end of the main backplane is connected to the first breaker of the distribution panel, the output end of the main backplane is connected to the input end of the distribution backplane, and the output end of the distribution backplane. Is connected to the input of the load.

The backplane further includes an input backplane and an output backplane that are installed between the output of the main backplane and the input of the distribution backplane, the input of the input backplane being connected to the output of the main backplane, The output terminal is connected to the input terminal of the external power backup device, the input terminal of the output back plane is connected to the output terminal of the external power backup device, and the output terminal of the output back plane is connected to the input terminal of the distribution back plane.

The backplane further includes an air conditioner main backplane and an air conditioner input backplane, the input end of the air conditioner main backplane is connected to the second breaker of the switchboard, and the output end of the air conditioner main backplane is connected to the input end of the air conditioner input backplane. The output of the air conditioner input backplane is connected to the input of the air conditioner.

One or more shelves are provided with the backplane at the rear, and the one or more shelves are mounted in a rack.

It further includes one or more surge protection units configured to be detachably electrically connected using one or more backplanes and connectors, wherein the backplane passes through a surge connector that supplies power to the surge protection unit, and a surge protection unit. A ground connector for outputting a surge power, and a ground output terminal connected to the ground connector for outputting surge power to the outside; a surge protection unit includes a surge protector for bypassing surge power, one end of the surge protector, A unit surge connector for connecting the surge connector and a unit ground connector for connecting the other end of the surge protector and the ground connector of the backplane.

Parallel connections between two or more units connected to one backplane are configured using horizontal busbars, and serial connections between two or more backplanes are configured using vertical busbars.

The apparatus further includes at least one data collection unit configured to be detachably and electrically connected by using the backplane and the unit data connector, and a load management unit which collects or collects and displays management data from each data collection unit. The unit has a sensor for detecting management data including breaker information, power input information and voltage and current of the breaker, and a unit data connector to which management data is output. The backplane includes a unit data connector of the breaker unit and the data collection unit. It includes a data connector to be connected, and a communication connector which makes a connection between the data collection units and between the data collection unit and the load management unit.

The load management unit is connected to the local console and the management server.

The data collection unit calculates the power factor, the active power, the reactive power, and calculates the resistive leakage current and the capacitive leakage current, using the phase voltage and the phase current of each phase of the AC power source, which is the management data detected by the sensor. Contains modules

The variable power distribution device according to the present invention is configured to be detachably detached by the unit of the backplane and the breaker unit, so that the number or characteristics of the breakers according to the disposal, new construction, expansion or expansion of the load (phase, AC, DC, By changing the current capacity, etc., it is possible to replace, replace, discard, install, expand, or expand the circuit breaker, to be easy to maintain, repair, and to minimize the economic burden.

In addition, when the variable power distribution apparatus is provided with a plurality of breakers in the switchgear, power dependence can be minimized by allowing power to be supplied from one or more switchgear breakers to one power distribution device.

In addition, the variable power distribution device can accommodate both AC (three-phase AC, single-phase AC) and DC characteristics of a power backup device such as a UPS, a battery and a charger, or a load.

In addition, the variable power distribution device also accommodates the blocking means for the power for the air conditioner, it is possible to minimize the economic burden and installation space.

In addition, the variable power distribution device constantly measures the power supply status, voltage, current, leakage current, and tripping of the circuit breaker to understand the state of various loads on each circuit breaker. You can prevent damage and respond quickly.

In addition, the variable power distribution apparatus may provide a variable power distribution apparatus having a large power supply dependency by supplying power from one or more switchgear circuit breakers to one power distribution apparatus when a plurality of circuit breakers are provided in the switchboard. .

Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the technical idea of the present invention. . First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Embodiments of the present invention are provided to more completely describe the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for clarity.

Hereinafter, with reference to the accompanying drawings a variable power distribution device according to an embodiment of the present invention will be described in detail as follows. 3 is a view for explaining a variable power distribution apparatus according to an embodiment of the present invention, Figure 4 is a view for explaining the backplane of Figure 3, Figure 5 is an illustration of various types of modules, Figure 6 is a cross-sectional view illustrating the electrical connection between the module and the backplane.

As shown in FIG. 3, the variable power distribution apparatus 100 of the present invention includes one or more back planes 200 (BPs) and one or more backplanes configured to be detachably electrically connected using a connector. Breaker unit 300 is configured to include a breaker unit (BU).

The backplane 200 has an input terminal 210 (that is, ITA 212 and ITD 214) to which power is input from the outside, and an input connector 220 connected to the input terminal 210 (ie, SIC 222 and SDC). And the output connector 230 (that is, the SOC 232 and the SDC 250) to which the power passed through the breaker unit 300 is connected, and the output connector 230 to output power to the outside. Output terminal 240 (that is, OTA 242, OTD 244). Here, the ITA 212 is an AC input terminal 210, the ITD 214 is a DC input terminal 210, and the SIC 222 is an input connector 220 of the backplane 200 of the self 600, and the SOC 232. ) Denotes an output connector 230 of the backplane 200 of the shelf 600, an OTA 242 represents an AC output terminal 240, and an OTD 244 represents a DC output terminal 240. And SDC 250 is a DC connector of the backplane 200 of the self 600, in the figure illustrates a configuration in which the input pin and the output pin is included together in one connector, but these are separated configuration of the present invention It is not excluded from.

The circuit breaker unit 300 includes a circuit breaker 320 (MCCB) that cuts power by an overcurrent, one end of the circuit breaker 320 (MCCB), and an input connector 220 of the backplane 200 (that is, SIC 222, SDC ( Unit input connector 340 (that is, UIC 342, UDC 380), the other end of the breaker 320 (MCCB) and the output connector 230 of the backplane 200 Unit output connector 360 (ie, UOC 362, UDC 380). Where UIC 342 is the AC input connector 220 of the unit, UOC 362 is the AC output connector 230 of the unit, and UDC 380 is the DC connector of the unit, in which the input pin and output Although configurations in which the pins are included together in one connector are illustrated, these separate configurations are not excluded from the present invention.

In other words, the backplane 200 is provided with a connector for inputting and outputting AC power and a connector for DC power, respectively, and the breaker unit 300 has an AC connector or a connector depending on whether the breaker unit is for AC or DC. DC connector is provided. Therefore, since the backplane 200 has a general purpose, the breaker unit 300 has a specificity, by selecting and mounting the breaker unit 300 is configured a power distribution unit for a specific purpose.

In such a configuration, the backplane 200 is preferably divided into a main backplane 200 and a distribution backplane 200. 4 illustrates the backplane 200 as a whole, and may select or change positions of these components as necessary. For example, it may be formed of an AC dedicated backplane 200 having only an AC terminal and a horizontal bus bar, or a DC dedicated back plane 200 having only a DC terminal and a horizontal bus bar. It may be formed of a combined backplane 200 having both horizontal busbars.

For example, when the backplane 200 of FIG. 4 is the main backplane 200 and is used to input and output AC power, the input terminal 210 (ITA 212) of the main backplane 200 may have a switchboard ( 810 is connected to a first circuit breaker (not shown) of the SB. Here, when two or more AC breaker units 300 are installed in the main back plane 200, the first breakers (not shown) of the switchgear 810 may be connected to the breaker units 300a and 300b, respectively. have. Then, the power output through the breaker unit 300 is supplied to the horizontal bus bar (HBBA 270) connected to the output terminal 240 (OTA 242).

In the near future, since the power supplied from the switchboard 810 is assumed to be DC, such as a charging station for an electric vehicle, it is not necessary to exclude the input / output for DC.

For example, when the backplane 200 of FIG. 4 is the main backplane 200 and is used to input and output DC power, the input terminal 210 (ITD 214) of the main backplane 200 is a switchboard 810. Is connected to the first circuit breaker (not shown). Here, when two or more DC circuit breaker units 300 are installed in the main back plane 200, the first circuit breakers (not shown) of the switchgear 810 are connected to each circuit breaker unit 300a and 300b, respectively. Can be. Then, the power output through the breaker unit 300 is supplied to the horizontal bus bar (HBBD 275) connected to the output terminal 240 (OTD 244).

The output terminal 240 (OTA 242, OTD 244) of the main backplane 200 and the input terminal 210 (ITA 212, ITD 214) of the distribution backplane 200 are interconnected.

For example, if the backplane 200 of FIG. 4 is a distributed backplane 200 and is used to input and output AC power, a horizontal bus connected to the input terminal 210 (ITA 212) of the distributed backplane 200. The bar (HBBA 270) is connected to a horizontal bus bar (HBBA 270) connected to the output terminal 240 (OTA 242) of the main backplane 200. This provides AC power to all AC breaker units 300 mounted on the distribution backplane. Then, the power passing through the breaker unit 300 is supplied to the output terminal 240 (OTA 242) of the distribution backplane.

For example, if the backplane 200 of FIG. 4 is a distributed backplane and is used to input and output DC power, a horizontal busbar (HBBA) connected to the input terminal 210 (ITD 214) of the distributed backplane 200. 270 is connected to the horizontal bus bar (HBBA 270) connected to the output terminal 240 (OTD 244) of the main backplane 200. This provides DC power to all DC breaker units 300 mounted on the distribution backplane. Then, the power passing through the breaker unit 300 is supplied to the output terminal 240 (OTD 244) of the distribution backplane.

The output terminal 240 (OTA 242, OTD 244) of the distribution backplane 200 is connected to the input terminal 210 of the AC load L1 or the DC load L2.

When the main backplane 200 and the distributed backplane 200 are configured as described above, an output terminal 240 of the main backplane 200 (OTA 242, OTD 244) and an input end 210 of the distribution backplane 200 are provided. The input back plane 200 and the output back plane 200 are further included between the ITA 212 and the ITD 214.

The input terminal 210 (ITA 212, ITD 214) of the input backplane 200 is connected to the output terminal 240 (OTA 242, OTD 244) of the main backplane 200.

The output terminal 240 of the input backplane 200 (OTA 242, OTD 244) is connected to the input terminal 210 of the external power backup device (820, 830).

The input terminal 210 (ITA 212, ITD 214) of the output backplane 200 is connected to the output terminal 240 of the external power backup devices 820 and 830.

An output terminal 240 (OTA 242, OTD 244) of the output backplane 200 is connected to an input terminal 210 (ITA 212, ITD 214) of the distributed backplane 200.

Here, when the external power backup device (820, 830) is an AC device such as a UPS, since its output is AC power, it is connected to the distribution backplane 200 through the AC power transmission path, the external power backup device When the 820 and 830 are DC devices such as a battery and a charger, the outputs are DC power, and thus are connected to the distribution backplane 200 through the DC power transfer path. They should be spaced apart from each other and maintain their independence.

In addition, when the main back plane 200 and the distribution back plane 200 is configured as described above, the back plane 200 may further include an air conditioner main back plane 200 and an air conditioner input back plane 200.

An input terminal 210 (ITA 212, ITD 214) of the air conditioner main backplane 200 is connected to a second circuit breaker (not shown) of the switchboard 810. DC air conditioners are also expected in the near future, so it is not necessary to exclude DC input and output.

The output terminal 240 (OTA 242, OTD 244) of the air conditioner main backplane 200 and the input terminal 210 (ITA 212, ITD 214) of the air conditioner input backplane 200 are interconnected.

The output terminal 240 of the air conditioner input backplane 200 (OTA 242, OTD 244) is connected to the input terminal 210 of the air conditioner 850.

Even when the main backplane 200 and the distribution backplane 200, and the input backplane 200 and the output backplane 200 are configured, the backplane 200 is the air conditioner main backplane 200 and the air conditioner input back. It may further include a plane 200, the connection configuration at this time also the second circuit breaker (not shown) of the switchgear 810-> the input terminal 210 of the main air backplane (200; ITA (212), ITD 214) ))-> Output terminal 240 of air conditioner main backplane 200 (OTA 242, OTD 244)-> input terminal 210 of air conditioner input backplane 200 (ITA (212), ITD (214)) -> Output terminal 240 of the air conditioner input backplane 200 (OTA 242, OTD 244)-> input terminal 210 of the air conditioner (L850) in this order, and is exactly the same as above.

The configuration preferably further includes one or more surge protection units 400 (SPUs) configured to be removably electrically connected using one or more backplanes 200 and connectors.

At this time, the backplane 200 includes a surge connector for supplying power to the surge protection unit 400 (SPU), and a ground connector (SGC 265) for outputting surge power passing through the surge protection unit 400 (SPU); And a ground output terminal 240 (GT 285) connected to a ground connector (SGC 265) to output surge power to the outside.

The surge protection unit 400 (SPU) includes a surge protector 420 (SP) for bypassing surge power, and a unit surge connector 440 for connecting one end of the surge protector 420 (SP) and a surge connector of the backplane 200. And a unit ground connector 460 (UGC) for connecting the other end of the surge protector 420 (SP) and the ground connector (SGC 265) of the backplane 200.

The surge connector is preferably composed of a connector connected in parallel with the input connector 220 (SIC 222) or the output connector 230 (SOC 232) of the backplane 200.

In the configuration, as shown in FIG. 4, FIG. 6, or FIG. 9, the parallel connection between two or more units connected to one backplane 200 is configured using a horizontal bus bar, and the two or more backplanes 200 are connected to each other. The series connection is preferably configured using a vertical busbar. For example, in the case of the main back plane 200, two breakers (ie, a first breaker and a second breaker) of the switchgear 810 are inputted to the two breaker units 300a and 300b to break the breaker units 300a and 300b. When the power passed through the AC horizontal bus bar (HBBA 270; OTA 242 output terminal 240) in parallel, any one circuit breaker of the switchgear 810 (that is, the first circuit breaker) Even if an abnormality occurs in any one of the second circuit breakers or the wiring system, the power from the other circuit breaker can smoothly supply power to the backplane of the next stage. In addition, when supplying power to the backplane of the next stage, by using the vertical bus bar as shown in Fig. 6 or 9, it is possible to safely transmit high power.

7 to 9 are views for explaining the installation of the variable power distribution apparatus according to an embodiment of the present invention.

As shown in FIG. 7, at least one shelf 600 (S) having a backplane 200 is provided therein, and at least one shelf 600 (S) is preferably mounted on the rack 700. Do. That is, the shelf 600 (S) has a housing or frame, the front is composed of a space in which a unit such as the breaker unit 300 can be attached and detached, the rear is composed of a back plane (200). The shelf 600 (S) may be formed with a plurality of balls 650 (H) for mounting by bolts or the like in the space of the rack 700 (R).

As shown in FIG. 8, a plurality of shelves 600 (S) may be installed in one rack 700 (R), and a plurality of different units 300 (SPU) in one shelf 600 (S). , DCU) may be installed. In this case, the units 300, SPU, and DCU installed in the shelf 600 are connected through the backplane 200. Here, as shown in FIG. 9, at least one data collection unit 500 (DCU) configured to be detachably and electrically connected using the backplane 200 and the unit data connector (UCC 390); In addition, the load management unit 750 for collecting or collecting and displaying management data from each data collection unit 500 (DCU) is preferably further included.

10 is a diagram illustrating a connection of peripheral devices connected to a variable power distribution device according to an embodiment of the present invention, and FIGS. 11 and 12 are views for explaining a connection of a variable distribution device according to an embodiment of the present invention. Here, FIG. 11 is an exemplary view in which a plurality of data collection units are connected to a load management unit connected to a local console or a management server, and a plurality of breaker units are connected to each data collection unit, and FIG. 12 is a place where devices of the present invention are different from each other. This is an example of application showing the advantage that can be managed in remote or field when there are a large number in the network.

As shown in FIG. 10, the variable power distribution apparatus 100 includes a substation facility 810, a UPS device 820, a battery and a charger 830, a DC load 842, and an AC load 844. It includes a rod 840, an air conditioner 850, and a local console 860. Of course, the variable power distribution apparatus 100 is connected to the management server 880 through the Internet (870). At this time, as shown in Figure 11, the circuit breaker unit 300 installed in the variable power distribution device 100, a sensor for detecting the management data, including interruption information, power input information and voltage, current of the circuit breaker 320 (MCCB) 370 (SS) and a unit data connector (UCC 390) for outputting management data is provided. For example, one data acquisition unit 500 (DCU) may be installed in one backplane 200, and the data collection unit 500 (DCU) may include all units 300 and SPUs connected to the backplane 200. Can be managed to collect the management data.

The backplane 200 includes a data connector (SCC 260) connected to the breaker unit 300 and the unit data connector (UCC 390) of the data collection unit 500 (DCU), and the data collection unit 500 (DCU). A communication connector (TC 280) is provided to form a connection between each other and the data collection unit (500; DCU) and the load management unit (750; LMU). Of course, communication using a serial bus may be used between each data collection unit 500 (DCU) and between them and the load management unit 750.

At this time, the load management unit 750 is preferably connected to the local console 860, the management server 880. The local console 860 receives data directly from the load management unit 750, the management server 880 receives data from the load management unit 750 of the variable power distribution device 100 via a network such as the Internet 870. This data is displayed, the alarm is generated by comparing with the predetermined threshold value, and the database is built so that the history management and the quality management can be systematically performed. As illustrated in FIG. 12, one local console 86 is preferably provided for each load management unit 750. However, the local console 86 is not limited thereto and may be provided in groups of three or four load management units 750. The management server 880 may be configured to collect data from the plurality of load management units 750.

The DCU of the data collection unit 500 calculates the power factor, the active power, and the reactive power by using the phase voltage and the phase current of each phase of the AC power, which is the management data detected by the sensor 370 (SS), and calculates the resistance. Preferably, a calculation module for calculating leakage current and capacitive leakage current is provided. The composite leakage current of the AC power is detected directly from the sensor 370 (SS).

As described above, the variable power distribution device is configured so that the operator can be detachably detached in units of the backplane and the breaker unit, and the number or characteristics of the breakers according to the disposal, new construction, expansion or expansion of the load (phase, AC, DC). By changing the current capacity, etc., it is possible to replace, replace, discard, install, expand, or expand the circuit breaker, maintain, repair, etc., and minimize the economic burden.

In addition, the variable power distribution apparatus, when a plurality of breakers are provided in the switchgear 810, power can be minimized by supplying power from one or more switchgear breakers to one power distribution device.

In addition, the variable power distribution device can accommodate both AC (three-phase AC, single-phase AC) and DC characteristics of a power backup device such as a UPS, a battery and a charger, or a load.

In addition, the variable power distribution device also accommodates the blocking means for the power for the air conditioner, it is possible to minimize the economic burden and installation space.

In addition, the variable power distribution device constantly measures the power supply status, voltage, current, leakage current, and tripping of the circuit breaker, which can grasp the state of various loads on each circuit breaker, thereby preventing human and physical damage due to power failure or short circuit. Prevent and respond quickly.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but many variations and modifications may be made without departing from the scope of the present invention. It will be understood that the invention may be practiced.

1 is a block diagram of a conventional power distribution device.

Figure 2 is a block diagram of a power distribution system installed with a conventional power distribution device.

3 is a view for explaining a variable power distribution device according to an embodiment of the present invention.

4 is a view for explaining the backplane of FIG.

5 illustrates an example of various types of modules coupled with the backplane of FIG.

6 is a view for explaining the connection of the backplane and the module of FIG.

7 and 8 are views for explaining the installation of the variable power distribution apparatus according to an embodiment of the present invention.

9 is a diagram illustrating a connection of peripheral devices connected to a variable power distribution device according to an embodiment of the present invention.

10 to 12 are views for explaining the connection of the variable distribution device according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: variable power distribution device

200: backplane 210: input stage

212: ITA 214: ITD

220: input connector 222: SIC

230: output connector 232: SOC

240: output terminal 242: OTA

244: OTD 250: SDC

260: SCC 265: SGC

270: HBBA 275: HBBD

280: TC 285: GT

300: breaker unit 320: breaker

340: unit input connector 342: UIC

360: unit output connector 362: UOC

380: UDC 390: UCC

370: sensor 400: surge protection unit

420: surge protector 440: unit surge connector

460: unit ground connector 480: unit output connector

500: data acquisition unit 520: unit surge connector

600: self 650: ball

700: rack

Claims (10)

One or more backplanes and one or more breaker units configured to be removably electrically connected using connectors; The backplane includes an input terminal through which power is input from the outside, an input connector connected to the input terminal, an output connector connected to the power passing through the breaker unit, and an output terminal connected to the output connector to output power to the outside. And The circuit breaker unit includes a circuit breaker that cuts power by an overcurrent, a unit input connector connecting one end of the circuit breaker and an input connector of the backplane, and a unit output connecting the other end of the circuit breaker and an output connector of the backplane. With connectors, At least one shelf having the backplane at the rear, wherein the at least one shelf is mounted in a rack. The method according to claim 1, The backplane, Including the main backplane and the distribution backplane, The input terminal of the main backplane is connected to the first circuit breaker of the switchgear, the output terminal of the main backplane is connected to the input terminal of the distribution backplane, and the output terminal of the distribution backplane is connected to the input terminal of the load Variable power distribution device. The method according to claim 2, The backplane, And an input back plane and an output back plane installed between an output end of the main back plane and an input end of the distribution back plane. An input of the input backplane is connected to an output of the main backplane, an output of the input backplane is connected to an input of an external power backup device, And an input of the output backplane is connected to an output of the external power backup device, and an output of the output backplane is connected to an input of the distribution backplane. The method according to claim 2, The backplane, Further includes an air conditioner main backplane and an air conditioner input backplane, The input terminal of the air conditioner main backplane is connected to the second breaker of the switchboard, the output terminal of the air conditioner main backplane is connected to the input terminal of the air conditioner input backplane, and the output terminal of the air conditioner input backplane is connected to the input terminal of the air conditioner. Variable power distribution device, characterized in that. delete The method according to any one of claims 1 to 4, Further comprising at least one surge protection unit configured to be detachably electrically connected using the at least one backplane and the connector, The backplane includes a surge connector for supplying power to the surge protection unit, a ground connector for outputting surge power passing through the surge protection unit, and a ground output terminal connected to the ground connector to output surge power to the outside. and, The surge protection unit includes a surge protector for bypassing surge power, a unit surge connector connecting one end of the surge protector and a surge connector of the backplane, and a second connector connecting the other end of the surge protector to the ground connector of the backplane. A variable power distribution device comprising a unit ground connector. The method according to any one of claims 1 to 4, The parallel connection between two or more units connected to one backplane is configured using horizontal busbars, and the series connection between two or more backplanes is configured using vertical busbars. The method according to any one of claims 1 to 4, One or more data collection units configured to be removably electrically connected using the backplane and a unit data connector; Further comprising a load management unit for collecting or collecting the management data from each of the data collection unit, The circuit breaker unit includes a sensor for detecting management data including breaking information, power input information and voltage and current of the circuit breaker, and a unit data connector to which the management data is output. The backplane includes a data connector connected to the unit data connector of the breaker unit and the data collection unit, and a communication connector that makes a connection between the data collection units and between the data collection unit and the load management unit. Variable power distribution device. The method according to claim 8, The load management unit is a variable power distribution device, characterized in that connected to the local console and the management server. The method according to claim 8, The data collection unit, A calculation module for calculating power factor, active power, reactive power, and resistive leakage current and capacitive leakage current using phase voltage and phase current of each phase of the AC power, which is the management data detected by the sensor. Variable power distribution device, characterized in that.

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