KR100998930B1 - The automatic controller breaking the losing electricity of the panelboard - Google Patents

Abstract

PURPOSE: An automatic controller breaking the losing electricity of a switchboard is provided to minimize the loss of standby power by simply changing the capacity of a transformer. CONSTITUTION: A phase-balance switchboard and a household switchboard include a current transformer. The output line of a distribution panel matrix is inputted into the circuit-breaker of the phase-balance switchboard(22). The phase-balance switchboard supplies power to each household through the switchboard matrix part(23). A main control unit is comprised of a microprocessor. The main controller turns a magnet switch on/off according to the command of a control server. The matrix part is comprised of the distribution panel matrix part, a switchboard matrix part, and a household matrix.

Description

Control panel standby power loss blocking automatic control controller {The automatic controller breaking the losing electricity of the panelboard}

The present invention relates to a water substation facility for supplying power for each apartment, building unit or plant unit by lowering the special high voltage of 6,600V or more and 22,900V class to a low pressure of 380V or 220V.

The present invention relates to a closed switchgear, which is divided into a high-voltage board and a low-pressure board according to a system order in a grounded cubicle (excluding metal), a breakdown section automatic switch (LBS), an arrester, a high-pressure fuse, and a transformer for instrumentation. (MOF), transformer (TR), transformer for instrument (PT), transformer for instrument (CT), and storage battery are installed, and the circuit breaker (MCCB), various measuring devices, and digital control device are built in the low pressure plate. Each device is embedded in a unit cubicle to perform its own unique function in an independent space.

The present invention is to solve the problems caused by load imbalance for each phase (R, S, T) that occurs depending on the use of the load (electric device) when supplying power to the load (electric device) through the switchboard. It is to improve the efficiency by supplementing the unbalance of the loaded load with the controller, and when the parallel operation (operating two or more transformers), the turns ratio and polarity of the transformer must be matched. This happens to solve this problem.

In the three-phase four-wire power supply method, when 220V is supplied to the load through R phase-N phase, S phase-N phase, and T phase-N phase, the load amount varies depending on the phase depending on the use of power by load. In this case, the power factor is lowered, and a partial overload condition is caused in each phase winding of the power supply transformer, thereby causing a problem such that the power supply transformer is burned out.

Therefore, if the load unbalance rate is measured and unbalanced above the set value, it is possible to prevent the power factor drop and burnout of the power supply transformer by performing maintenance work for correcting. The load unbalance rate should be determined, and after installation of the facility, if the manager does not check the load unbalance rate from time to time, the load unbalance may not be detected, resulting in a power factor drop and damage to the power supply transformer.

In addition, in order to efficiently operate the transformer, in order to install a plurality of transformers in parallel operation, the conditions and characteristics of the parallel operation must be identical. Otherwise, the transformer may be burned out and the risk of explosion accident occurs.

The present invention relates to a switchboard installed in an apartment house (apartment).

When multiple transformers are installed and parallel operation (TIE operation), the characteristics of the transformer, such as the turns ratio and frequency of the transformer, must be the same. Therefore, it is common to select a transformer of the same model of the same manufacturer. to be.

If the characteristics are different, there are many risk factors such as burnout and heat generation of the transformer, and in spite of the many advantages of parallel operation, field maintenance workers are reluctant to parallel operation.

In addition, the actual demand of the load varies according to the seasons (the final terminal load is not uniform for each phase. For example, the power supply of three computers in the office is considered in each phase (A, B-R-R phase) , C, D-S phase, E, F-T phase), but when Mr. A leaves the office, the R phase decreases the load and the rest becomes relatively unbalanced. In view of the above extreme phenomenon, the phase imbalance is greatly affected by season and time zone, and the phase imbalance is inevitable.

In addition, the loss of standby power (no load) is minimized by simply changing the capacity of the transformer.

In addition, the capacity of the circuit breaker and the capacity of the load are simply matched with each other.

In particular, the present invention is a technology limited in a multi-unit house, and in order to minimize phase inequality, the power transfer unit is gradually narrowing the range of load transfer by phase to the entire apartment, the same unit, and the household unit. It is related to the technology of effectively minimizing phase inequality and reducing the phase imbalance to less than 0.5% at the end load (final load final load).

The present invention solves the above problems by sharing the load without affecting mutual interference even if the characteristics of the plurality of transformers are different in order to solve the above problems.

In addition, to reduce the loss of standby power (no-load operation) of the transformer, the combination of three-phase transformer and single-phase transformer or one type of three-phase transformer can be operated in parallel for each load to eliminate the loss of transformer's no-load loss and to easily expand the capacity. .

In addition, the phase imbalance is eliminated by selectively controlling the load for each phase.

In addition, the load and breakout period selections are simply changed through a microprocessor or server.

The present invention relates to a switchboard in an apartment house (apartment) and has the following effects.

1. The present invention is fundamentally different from the technique of simply solving the parallel operation or the technique of measuring the phase imbalance and eliminating the phase imbalance with respect to the prior art. It is the first invention that a simple addition and parallel operation of a transformer having different characteristics is possible.

2. Parallel operation of the transformer is possible even if the characteristics of the transformer do not match.

3. It eliminates the risk of loss and accident caused by transformer characteristics, frequency unbalance, etc. in parallel operation.

4. Even if the transformer characteristics are different, it is possible to simply increase the transformer capacity.

5. Improvement of phase imbalance of load prevents power factor improvement and burnout of power distribution equipment.

In particular, the phase imbalance can be immediately and simply improved in consideration of the reality that the load demand for each phase is varied according to seasons and time zones differently from the prior art.

6. The capacity and load of the circuit breaker can be changed simply by wiring the matrix circuit through the microprocessor or the server.

7. The wiring between the circuit breaker and the load can be easily changed.

8. Narrow the size unit of the load into three stages to control the phase imbalance to the finest level.

1 is a schematic diagram of a matrix circuit having a magnetic switch as a contact point for understanding the present invention.
2 is a schematic diagram of a three-phase transformer wired to a schematic diagram of a switchboard standby power loss cutoff automatic control controller composed of a matrix circuit having a magnetic switch as a contact to eliminate phase imbalance;
3 is a simplified diagram of a three-phase transformer for parallel operation in addition to a schematic diagram of a switchboard standby power loss blocking automatic control controller composed of a matrix circuit having a magnetic switch as a contact point.
Figure 4 is a simplified diagram of the present invention that can improve the phase load imbalance and simply increase capacity
5 is a simplified diagram showing the load vectors in the center of gravity to understand the improvement of phase load imbalance.
Figure 6 is a simplified diagram showing a simplified block diagram of the control system of the present invention
7 is a simplified illustration of a logic flue chart that derives a combination of phases and loads in which phase imbalance of the main control portion is minimized.
8 is a schematic diagram of load wiring in which phase imbalance is minimized to one three-phase transformer;
9 is a simplified diagram of load wiring in which phase imbalance is minimized using two three-phase transformers.
10 is a simplified diagram for simply changing the wiring between the load and the wiring interruption period;
11 is an exemplary view showing that only some of the loads can be variably selected and the others can be fixedly operated.
12 is a simplified block diagram of eliminating phase imbalance in an MDU.

The high voltage (6,600V or more and 22,900V) drawn from the Korea Electric Power Corporation through the high voltage inlet is introduced into the transformer (TR) through the automatic failure switch (LBS), lightning arrester, high voltage fuse, and instrument transformer (MOF) in the high voltage board. When converted into low voltage and introduced into the low voltage plate, the common power supply of AC 220V, single phase 380V, three phase 380V is supplied to the load through an earth leakage breaker, wiring breaker, current transformer, terminal block, etc. in the low platen cubicle. DC 110V is supplied to the low platen through the storage battery in the ground, and the low platen is driven by DC 110V driving power to drive various automatic control devices and measuring devices, and separately installs an uninterruptible power supply (UPS) to cope with power failure. It has a normal switchboard configuration.

The main control unit of the switchboard standby power loss blocking automatic control controller is a server-class microprocessor based on the Windows XP operating system.

A microprocessor is a TTL or CMOS IC that operates only on certain characteristics, whereas a microprocessor allows an administrator to inject a program into the processor to achieve the desired operating characteristics. The microcontroller for the entire control program and operation is also called the motherboard (MOTHERBOARD) or the motherboard (MAINBOARD).

The server is a server for remote control by giving a command to the main control unit composed of microprocessors at a remote place connected to the Internet in the present invention by a conventional control computer.

In the present invention, it is not related to the amount of current flowing through the neutral line (N phase).

In the known prior art, a method of measuring the phase unbalance by measuring the amount of current flowing through the neutral line (N phase) is used, but the present invention does not measure or use the amount of current in the neutral line (N phase).

In particular, the neutral line (N phase) has no specificity with the present invention, and in the circuit configuration on the drawing, the N phase is not shown in the drawing in common, and the lines are indicated by the phases for the convenience of understanding.

In other words, measuring the degree of phase imbalance is meaningless in the present invention, because it is a technique that puts the most important 'combination of load' to minimize the phase imbalance.

In the present invention, 'combination of loads' is the biggest feature, and the second main feature is related to the addition or combination of transformers.

It will be described in detail with reference to the drawings.

1 is a schematic diagram of a matrix circuit having a magnetic switch as a contact for understanding the present invention.

An embodiment of the present invention is based on a matrix circuit configured to form a matrix for the X-Y axis and to obtain an intersection point in two dimensions through ON / OFF selection of the magnetic switch.

2 is a schematic diagram of a three-phase transformer connected to a switchboard standby power loss cutoff automatic control controller consisting of a matrix circuit having a magnetic switch as a contact to eliminate phase imbalance. It is for simplicity.

3 is a schematic diagram of a three-phase transformer additionally configured for parallel operation in a switchboard standby power loss blocking automatic control controller consisting of a matrix circuit having a magnetic switch as a contact point. It is a simplified diagram showing an example where parallel operation is safe and simple because there is no mutual interference.

4 is a simplified diagram of the present invention that can improve the phase load imbalance and simply increase the capacity, by adding a single-phase transformer for capacity expansion, the single-phase transformer compensates for the severe phase imbalance, and the single-phase transformer bears a part of the total load. As a result, one embodiment of the configuration that simply solves the phase imbalance and the capacity expansion at the same time.

Fig. 5 is a simplified diagram representing the load vector for understanding the improvement of phase load inequality as the center of gravity. When the load is heavily loaded on the T phase as before the T phase compensation, the center of gravity of the maximum load vector (10), that is, the center of gravity of the equilateral triangle The distance between the center of gravity (11) of the load vector of the load (T phase is a relatively heavy load) is greatly increased, reducing the power factor as a whole and shortening the life of the transformer.

However, when reconstructing the load sharing for each phase or sharing the T phase with a plurality of transformers, such as after T phase compensation, the actual load (T phase has a relatively large load in the center of gravity of the maximum load vector (10), that is, the equilateral triangle) The distance between the load vector center of gravity (11) of the load is narrowed, thereby improving the power factor as a whole and improving the life of the transformer.

FIG. 6 is an exemplary embodiment schematically illustrating a control system of a main controller in a simplified block diagram illustrating a control system of the present invention.

7 is a simplified illustration of a logic flue chart that derives a combination of loads for each phase in which phase imbalance of a main control portion is minimized. The program is a generalized logic program with a logic chart that minimizes standard deviation from a data group.

8 is a schematic diagram of a load wiring to minimize phase imbalance with one three-phase transformer.

FIG. 9 is a simplified diagram for understanding that a transformer having different characteristics may be used because phase imbalance is minimized and grids are separated by load when two three-phase transformers having different characteristics are operated in parallel.

FIG. 10 is a simplified diagram in which a matrix unit is added to a load side so that wiring can be easily changed between a circuit breaker having various rated capacities and various loads.

11 is an exemplary view showing that only some of the loads can be variably selected, and the others can be fixedly operated.

As an example, in the case of a load (computer load) that may cause damage to a device or data loss due to switching of power, the wire is not directly connected to the circuit breaker via the matrix part but directly to the load through the circuit breaker. It is a simple expression that only a load such as a light load that is not affected by the changeover can be configured to minimize phase imbalance through the matrix part.

12 is a simplified block diagram of eliminating phase imbalance in an MDU.

It will be described in detail through the table below.

As shown in Table 1, the current of 380A is supplied to the load through the R1-5 circuit breaker (MCCB), and the current of 350A is loaded through the S1-5 wiring breaker (MCCB). If the current of 270A is supplied to the load through the circuit breaker (MCCB) of T1 to 5 and wired to T phase, R5 and T3, S2 and T2 circuit breaker (MCCB) The replacement will resolve the phase imbalance as shown in Table 2.

Award category MCCB No Load Phase load Load inequality

R

R1 70 A

380A



+ 14%

R2 80A R3 50 A R4 80A R5 100 A

S

S1 50 A

350 A



+ 5%

S2 80A S3 60A S4 80A S5 80A

T

T1 50 A

270A



-19%

T2 60A T3 50 A T4 50 A T5 60A

Award category MCCB No Load Phase load Load inequality

R

R1 70 A

330A


One%

R2 80A R3 50 A R4 80A T3 50 A

S

S1 50 A

330A



One%

T2 60A S3 60A S4 80A S5 80A

T

T1 50 A

340A



2%

S2 80A R5 100 A T4 50 A T5 60A

For example, in the case of the above example, the amount of current for each load is wired in units of 10 A. In the case of the above, the load may be changed (replaced) through the matrix unit when the wires are wired in phases in the entire apartment house.

However, since the unit or household unit panel in a multi-family house will show a load of 10 A or less per phase, the phase inequality rate can be removed more finely when additional load switching is performed by adding the matrix unit to the unit or household unit. In the present invention, phase imbalance is minimized in three steps.

Hereinafter, the claims will be described in detail.

(In one embodiment)

The present invention is limited to a power supply device for supplying power to households in a switchboard installed in a multi-family house.

It consists of transformer, phase current transformer, phase input part, load current transformer, matrix part, wiring breaker, main control part, control server, fixed copper panel, phase balanced panel and generation panel.

In the fixed copper distribution board, phase balanced distribution board, and generation distribution board, the incoming power in the distribution board passes through the current transformer and is elected as a circuit breaker or an earth leakage breaker.

A phase input unit (refer to the phase input unit block diagram of FIG. 6) for receiving a power supply line from a transformer low voltage unit terminal block in a distribution panel and branching the output power line to the distribution panel matrix unit.

An output line output from the switchgear matrix unit is input to a wiring breaker wired to the fixed copper power distribution board 21 and the phase balancing panel 22 through a wiring breaker;

The fixed copper distribution board supplies power to the generation call by generation lines (for example, 111, 112, 113, 114, and 115 in FIG. 12) through current transformers supplied from the switchboard through current transformers;

The phase equilibrium distribution panel supplies power to a generation number (for example, 331, 332, 333, and 334 in FIG. 12) through a current transformer and a distribution panel matrix part 23, and the top level generation number (335 in FIG. 12). Finally supplies power to the uppermost layer via the current transformer and the generation home matrix unit 24.

The matrix unit capable of switching loads as described above, the purpose of switching in three stages, such as switchboards, distribution boards, generation distribution boards to remove the phase imbalance by largely switching loads in the same unit of the apartment (apartment) in the switchgear matrix unit, It is possible to remove fine phase imbalance by removing the phase imbalance by switching the load by generation line from the distribution panel matrix section to the intermediate load, and finally, to remove the fine phase imbalance from the generation distribution panel. Is one of.

The matrix part constitutes an XY matrix circuit in the matrix part with the input power line and the output power line, and the matrix cell is wired by the magnetic switch between the matrix cells to select and wire the input power line and the output power line with the magnetic switch. And a generation matrix unit 23 installed in the distribution panel matrix unit 23 installed in the distribution panel and the generation distribution panel installed between the uppermost floor and the next floor generation household.

By removing the load imbalance by switching loads in stages, the matrix part is a matrix circuit that makes a 1: 1 wiring by selecting a plurality of input power lines on the X-axis and a plurality of output power lines on the Y-axis by selecting the ON contact of the magnetic switch.

The main control part is composed of microprocessor, and the magnetic switch is turned ON / OFF according to the command input of the control server to select the input and output of the XY matrix 1: 1. The main control part constitutes the wiring circuit. It is comprised in the matrix part.

The control server inputs the current amount of load current transformer and the current amount information of each phase current transformer, and connects the magnetic switch to the ON contact point to connect the wiring breaker and the phase input unit which are wired for each generation in the switchgear matrix part to be below 5%. Secondly, the input power line and the output power line are connected to the ON contact point of the magnetic switch so that the phase imbalance is less than 2% in the distribution panel matrix section.The input power line and the output is arranged so that the phase imbalance is 0.5% or less in the generation matrix. It is a control server that connects power line and magnetic switch to ON contact.

The control server receives power consumption from the current transformers in the distribution panel and converts power consumption into carbon dioxide emissions (CO2 equivalent to electricity, for example, 1 ton per 1W) and power usage ranking. The households are categorized (as ranked first and second in energy consumption, second and third in energy consumption), and the carbon dioxide consumption, power usage ranking, and current phase imbalance rate information are transmitted to the distribution panel for display on the monitor in the distribution panel.

The control server receives the current amount information of the phase current transformer, the load current transformer, the current transformer in the fixed dynamic distribution panel, the current transformer in the phase balanced distribution panel and the current transformer in the generation distribution panel, and the three phases in which the phase imbalance becomes less than 5%, 2%, and 0.5%. It is divided into groups (R phase, S phase, T phase) to drive the magnetic switch through the control command to the main control unit composed of microprocessors in the matrix unit, and the configuration of the wiring circuit between the loads for each of three phases is remotely controlled. It is an automatic control controller to cut off standby power loss of switchboard.

(In one embodiment)

The control server receives the current information of the load transformer and calculates the total load.

Step 2 of calculating the phase load for each phase by substituting the current amount information received in the first step by phase R, S, and T phase (in an embodiment, the substitution of Table 1 as shown in Table 2).

Comparing the average load divided by the total load by 3 and the phase loads (R phase, S phase, and T phase), and if the phase imbalance is 5% or more, the current amount information is re-substituted in phase 2; If the phase imbalance is less than 5%, connect the magnetic switch of the matrix part to the ON contact so that the circuit breaker corresponding to the information of the current amount inserted into each phase is wired on the corresponding phase.

The control server receives the current amount information of the current transformers in the fixed copper distribution board and the phase balanced distribution board and calculates the load for each generation line.

Step 5 is to calculate the phase load by phase by substituting the current amount information received in the fourth step by R phase, S phase, T phase.

If the phase imbalance is 2% or more by substituting the amount of current for each generation line by phase, the current amount information for each generation line is substituted for each phase; If the phase imbalance is less than 2%, step 6 for wiring the magnetic switch of the matrix unit to the ON contact point so that the circuit breaker corresponding to the current amount information inserted into each phase is wired on the corresponding phase.

The control server receives the current amount information of the current transformers in the generation distribution panel in the top floor generation and calculates the top floor generation load.

An eighth step of calculating the phase load by phase by substituting the current amount information received in the seventh step by R phase, S phase, T phase.

If phase imbalance is more than 0.5% by substituting the amount of current in the distribution panel by phase, the current level information of each stage is divided by phase.If the phase imbalance is less than 0.5%, the circuit breaker corresponding to the information of current amount inserted by phase 9 is a step of connecting the wiring of the magnetic switch of the matrix unit to be connected to the corresponding phase; and the switchboard standby power loss blocking automatic control control method.

(Mainly on claim 1 paragraph)

It is limited to a power supply device that supplies power to households in switchboards installed in apartment houses.

It is composed of transformer, phase input unit, load current transformer, matrix unit, wiring breaker, main control unit, control server, fixed copper panel, phase balanced panel, and generation panel.

Fixed copper distribution boards, phase equilibrium distribution panels, and generation distribution panels include current transformers.

It is a phase input unit that receives the power line from the terminal block of the transformer low voltage part in the switchboard and branches it to the switchboard matrix part.

The output line output from the switchgear matrix part is an input diagram to a wiring breaker wired to the fixed copper power distribution board 21 and the phase balanced circuit board 22 via the wiring breaker.

The fixed copper distribution board supplies power to the generation call by generation line through the current transformer supplied from the switchboard.

The phase balance switchboard supplies power to the generation lake through the current transformer and the distribution panel matrix unit 23, and the generation lake on the top floor finally supplies power to the top floor via the current transformer and generation lake matrix unit 24.

The matrix part constitutes an XY matrix circuit in the matrix part with the input power line and the output power line, and the matrix cell is wired by the magnetic switch between the matrix cells to select and wire the input power line and the output power line with the magnetic switch. And a generation matrix unit 23 installed in the distribution panel matrix unit 23 installed in the distribution panel and the generation distribution panel installed between the uppermost floor and the next floor generation household.

The main control unit is composed of a microprocessor and is a main control unit for configuring the wiring circuit by turning on / off the magnetic switch according to the command input of the control server. The main control unit is included in the distribution board matrix unit, the distribution board matrix unit, and the generation home matrix unit.

The control server receives the current information of the load current transformer and connects the magnetic switch to the ON contact point to connect the circuit breaker wired to each generation and the phase input part in the switchgear matrix part so that the phase imbalance is less than 1%.

If the phase imbalance is not less than 1%, the magnetic switch is connected to the ON contact point between the input power line and the output power line so that the phase unbalance is 1% or less in the distribution panel matrix part.

When the phase imbalance is not less than 1%, the control server connects the magnetic switch to the ON contact point of the input power line and the output power line so that the phase imbalance is 1% or less in the third generation home matrix unit.

That is, the load transfer is terminated at the stage where the phase imbalance is adjusted to 1% or less, and thus the matrix portion transfer is terminated in stage 1, stage 2, or stage 3.

The control server receives the power consumption from the current transformer in the household distribution panel, converts the power consumption into carbon dioxide emission, and classifies the household calls by power usage rank, and transmits the carbon dioxide usage, power usage ranking, and current phase imbalance rate information to the generation panel. Display on my monitor

The control server consists of microprocessors in the matrix part divided into three phase groups in which the phase imbalance becomes less than 1% in stages by receiving current information of load current transformers, current transformers in fixed distribution boards, current transformers in phase balanced distribution panels, and current transformers in generation distribution panels. It is a switchboard standby power loss blocking automatic control controller which controls the configuration of the wiring circuit between the loads by three phases by driving the magnetic switch through the control command in the main control unit.

(In one embodiment)

The control server receives the current information of the load transformer and calculates the total load.

Step 2 is to calculate the phase load amount by phase by substituting the current amount information received in the first step by R phase, S phase, T phase.

When the phase imbalance is 1% or more by comparing the average load divided by the total load by 3 and the phase load, the control server calculates the load per generation line by receiving the current amount information of the current transformers in the fixed copper distribution box and the phase balance distribution panel.

Step 4 is to calculate the phase load by phase by substituting the current amount information received in the third step by R phase, S phase, T phase.

When the phase imbalance is 1% or more by assigning the current amount of each line by phase, the control server receives the current amount information of the current transformer in the generation distribution panel in the top floor generation and calculates the top floor generation load.

Step 6 is to calculate the phase load amount by phase by substituting the current amount information received in the fifth step by R phase, S phase, T phase.

A switchgear comprising seven steps of connecting the magnetic switch of the matrix part to the ON contact point so that the circuit breaker corresponding to the information of the amount of current inserted into each phase is wired when the current unbalance in the generation distribution panel is substituted by phase. Standby power loss control automatic control method.

(In one embodiment)

It demonstrates with reference to FIG.

It is limited to a power supply device that supplies power to households in switchboards installed in apartment houses.

At least one three phase transformer, phase current transformer, phase input part, load current transformer, matrix part, wiring breaker, main control part, control server, fixed copper panel, phase balanced panel, generation panel, fixed copper panel, phase balanced panel, generation The distribution panel includes a current transformer; A phase input unit for receiving a power supply line from a transformer low voltage unit terminal block in a switchboard and branching the power line to the switchboard matrix unit; An output line output from the switchgear matrix unit is input to a wiring breaker wired to the fixed copper power distribution board 21 and the phase balancing panel 22 through a wiring breaker; The fixed copper distribution board supplies power to the generation call for each generation line through the current transformer through the phase power supplied from the distribution panel; The phase balance switchboard supplies power to the generation lake via the current transformer and the distribution panel matrix section 23, and the generation lake on the top floor finally supplies power to the top floor via the current transformer and generation lake matrix section 24; The matrix part constitutes an XY matrix circuit in the matrix part with the input power line and the output power line, and the matrix cell is wired by the magnetic switch between the matrix cells to select and wire the input power line and the output power line with the magnetic switch. And a generation matrix unit 24 installed in the distribution panel matrix unit 23 installed in the distribution panel and the generation distribution panel installed between the uppermost floor and the next-generation floor generation house. The main control unit is composed of a microprocessor and is a main control unit for constituting a wiring circuit by turning on / off the magnetic switch according to the command input of the control server. The main control unit is included in the distribution board matrix unit, the distribution board matrix unit, and the generation home matrix unit; The control server receives current information of load current transformer and current transformer of each transformer by transformer, and connects magnetic switch to ON contact point to connect circuit breaker and phase input part which are wired by generation in primary in distribution panel matrix part so that phase imbalance is below 5%. The input power line and output power line are connected to the ON contact point so that the phase imbalance is 2% or less in the distribution panel matrix part in the second stage, and the input power is set to 0.5% or less in the third generation matrix. A control server for wiring the magnetic switch to the ON contact of the wire and the output power wire; The control server receives the power consumption from the current transformer in the household distribution panel, converts the power consumption into carbon dioxide emission, and classifies the household calls by power usage rank, and transmits the carbon dioxide usage, power usage ranking, and current phase imbalance rate information to the generation panel. Display on my monitor; The control server receives the current amount information of the phase current transformer, load current transformer, current transformer in the fixed distribution panel, current transformer in the phase balanced panel and current transformer in the generation distribution panel, and the phase imbalance is less than 5%, 2%, and 0.5%. The switchboard standby power loss interruption automatic control of the configuration of the wiring circuit between the loads for each of three phases by driving the magnetic switch through the control command on the main controller composed of microprocessors in the matrix part divided into three phase groups It is a control controller.

(In one embodiment)

The control server receives a current amount information of the load transformer for each transformer and calculates the total load amount; Calculating phase loads for each phase by substituting the current amount information received in the first step for each of the R phase, the S phase, and the T phase for each transformer; Compare the average load divided by the total load by 3 and the phase load by transformer, and if the phase imbalance is more than 5%, substitute the amount of current information for each phase in step 2, and if the phase imbalance is less than 5%, enter the current amount information A step 3 of connecting the magnetic switch of the matrix unit to the ON contact so that the corresponding circuit breaker is wired on the corresponding circuit breaker; The control server receives the amount of current information of the current transformers in the fixed copper distribution board and the phase balanced distribution board to calculate the load for each generation line; A fifth step of calculating phase loads for each phase by substituting the current amount information received in the fourth step for each of R phases, S phases, and T phases; If the phase imbalance is more than 2% by assigning the current amount by generation line to each phase of the transformer, the current amount information of each generation line is substituted by phase. A step 6 of connecting the magnetic switch of the matrix unit to the ON contact so that the circuit breaker is wired on the wiring breaker; The control server receives the current amount information of the current transformer in the generation distribution panel in the top floor generation to calculate the top floor generation load; An eighth step of calculating phase loads for each phase by substituting the current amount information received in the seventh step by R phase, S phase, and T phase; If the phase imbalance is 0.5% or more by assigning the current amount in the distribution board to each phase by transformer, the current amount information of each stage is divided into five phases.If the phase imbalance is less than 0.5%, it corresponds to the information of the amount of current entered into the phase. And a step 9 of connecting the magnetic switch of the matrix unit to the ON contact point so that the circuit breaker is wired on the corresponding circuit breaker.

(In one embodiment)

It demonstrates with reference to FIG.

It is limited to a power supply device that supplies power to households in switchboards installed in apartment houses.

It consists of three phase transformer, single phase transformer, phase transformer, phase input part, load transformer, matrix part, wiring breaker, main control part, control server, fixed copper panel, phase balanced panel, generation panel, fixed copper panel, phase balanced panel, generation The distribution panel includes a current transformer; A phase input unit for receiving a power supply line from a transformer low voltage unit terminal block in a switchboard and branching the power line to the switchboard matrix unit; An output line output from the switchgear matrix unit is input to a wiring breaker wired to the fixed copper power distribution board 21 and the phase balancing panel 22 through a wiring breaker; The fixed copper distribution board supplies power to the generation call for each generation line through the current transformer through the phase power supplied from the distribution panel; The phase balance switchboard supplies power to the generation lake via the current transformer and the distribution panel matrix section 23, and the generation lake on the top floor finally supplies power to the top floor via the current transformer and generation lake matrix section 24; The matrix part constitutes an XY matrix circuit in the matrix part with the input power line and the output power line, and the matrix cell is wired by the magnetic switch between the matrix cells to select and wire the input power line and the output power line with the magnetic switch. And a generation matrix unit 24 installed in the distribution panel matrix unit 23 installed in the distribution panel and the generation distribution panel installed between the uppermost floor and the next-generation floor generation house. The main control unit is composed of a microprocessor and is a main control unit for constituting a wiring circuit by turning on / off the magnetic switch according to the command input of the control server. The main control unit is included in the distribution board matrix unit, the distribution board matrix unit, and the generation home matrix unit; The control server receives the current information of the load current transformer and connects the magnetic switch to the ON contact point to connect the wire breaker and the phase input unit which are wired for each generation in the switchgear matrix unit so that the phase imbalance is 1% or less; If the phase imbalance is not less than 1%, the magnetic switch is connected to the ON contact point between the input power line and the output power line so that the phase unbalance is less than 1% in the second distribution panel matrix part. In the above, if the phase imbalance is not less than 1%, the control server for connecting the magnetic switch to the ON contact point between the input power line and the output power line so that the phase imbalance is 1% or less in the third generation home matrix unit; The control server receives the power consumption from the current transformer in the household distribution panel, converts the power consumption into carbon dioxide emission, and classifies the household calls by power usage rank, and transmits the carbon dioxide usage, power usage ranking, and current phase imbalance rate information to the generation panel. Display on my monitor; The control server receives the current information of the load transformer, the transformer in the fixed distribution panel, the current transformer in the phase equilibrium distribution panel and the current transformer in the generation distribution panel. The control command is used to drive the magnetic switch to configure the wiring circuit between the loads for each phase and additionally configure the single-phase transformer during the peak demand period, and drive the magnetic switch to the cooling load to wire it to the cooling load to use as a transformer for cooling load. It is a switchboard standby power loss blocking automatic control controller characterized in that the remote control.

(In one embodiment)

The control server receives a current amount information of the load current transformer to calculate the total load amount; Calculating phase loads for each phase by substituting the current amount information received in the first step for each of R phases, S phases, and T phases; Comparing the average load divided by the total load by 3 and the phase load, and when the phase imbalance is 1% or more, the control server receives the current amount information of the current transformers in the fixed copper distribution box and the phase balance distribution panel, and calculates the load for each generation line; Step 4 for calculating the phase load by phase by substituting the current amount information received in the third step by phase R, S, T phase; If the phase imbalance is 1% or more by substituting the current amount of each line by phase, the control server receives the current amount information of the current transformer in the generation distribution panel in the top floor generation and calculates the top floor generation load; A sixth step of calculating phase loads for each phase by substituting the current amount information received in the fifth step for each of R phases, S phases, and T phases; 7 steps of connecting the magnetic switch of the matrix unit to the ON contact point so that the circuit breaker corresponding to the current amount information inserted into each phase is wired when the current unbalance is 1% or less by substituting the amount of current in the generation distribution panel for each phase; It is an automatic control control method of cutoff of standby power loss of switchboard.

(In one embodiment)

At least one single-phase transformer, current transformer, input unit, matrix portion, wiring breaker, main control portion.

It is an input part that receives the power line from the transformer low voltage part terminal block in the switchboard and branches it to the matrix part.

The output power line output from the matrix part is input to the circuit breaker in the distribution panel via the current transformer and the circuit breaker.

The matrix unit is a matrix unit in which an input power line and an output power line form an X-Y matrix circuit in the matrix unit, and the matrix cells are wired by a magnetic switch to select and wire the input power line and output power line by a magnetic switch.

The main controller is composed of a microprocessor, and the main controller is configured to turn on / off the magnetic switch to form a wiring circuit.

The main control part composed of microprocessors is programmed with the maximum, minimum and maximum load unbalance of the transformer utilization.

The main control part is a main control part that inputs the current through the current transformer for each transformer and connects the magnetic switch between the input power line and the output power line to the ON contact point in the matrix so that the load unbalance becomes less than the maximum value of the load unbalance.

The main control unit receives the current information of the current transformer and connects the magnetic switch to the ON contact point to be connected to the circuit breaker wired to the load and the single-phase transformer period so that the load sharing of each transformer becomes less than the maximum load unbalance based on the average value of the total current amount. It is an automatic control controller for switchboard standby power loss blocking that minimizes no-load loss by phasing out single-phase transformers when the transformer utilization rate is greater than or equal to the maximum value.

(In one embodiment)

The main control unit receives a current amount information of the current transformer to calculate a total load amount; Calculating a load amount for each single-phase transformer by substituting the current amount information received in the first step for each single-phase transformer; Comparing the average load divided by the total load by 3 and the load by transformer, and when the load unbalance is greater than or equal to the maximum load unbalance, the process returns to step 2; When the load unbalance is less than the maximum value, the wiring breaker corresponding to the load amount for each single-phase transformer is connected to the corresponding transformer by wiring the magnetic switch of the matrix unit to the ON contact point; .

10: center of gravity of the maximum load vector
11: center of gravity of the load vector
12: T phase load vector compensated by reconstruction of load sharing through load transfer by phase
20: wiring breaker
21: fixed copper panel
22: equilibrium distribution panel
23: distribution board matrix
24: Generation Homatrices Division
25 household

Claims (2)

Limited to the power supply unit that supplies power to households in switchboards installed in apartment houses,
It consists of transformer, phase input part, load current transformer, matrix part, wiring breaker, main control part, control server, fixed copper distribution board, phase balanced distribution panel, generation distribution panel,
Fixed copper distribution boards, phase equilibrium distribution panels, and generation distribution panels include current transformers;
A phase input unit for receiving a power supply line from a transformer low voltage unit terminal block in a switchboard and branching the power line to the switchboard matrix unit;
An output line output from the switchgear matrix unit is input to a wiring breaker wired to the fixed copper power distribution board 21 and the phase balancing panel 22 through a wiring breaker;
The fixed copper distribution board supplies power to the generation call for each generation line through the current transformer through the phase power supplied from the distribution panel;
The phase balance switchboard supplies power to the generation lake via the current transformer and the distribution panel matrix section 23, and the generation lake on the top floor finally supplies power to the top floor via the current transformer and generation lake matrix section 24;
The matrix part constitutes an XY matrix circuit in the matrix part with the input power line and the output power line, and the matrix cell is wired by the magnetic switch between the matrix cells to select and wire the input power line and the output power line with the magnetic switch. And a generation matrix unit 24 installed in the distribution panel matrix unit 23 installed in the distribution panel and the generation distribution panel installed between the uppermost floor and the next-generation floor generation house.
The main control unit is composed of a microprocessor and is a main control unit for constituting a wiring circuit by turning on / off the magnetic switch according to the command input of the control server. The main control unit is included in the distribution board matrix unit, the distribution board matrix unit, and the generation home matrix unit;
The control server receives the current information of the load current transformer and connects the magnetic switch to the ON contact point to connect the wire breaker and the phase input unit which are wired for each generation in the switchgear matrix unit so that the phase imbalance is 1% or less;
If the phase imbalance is not less than 1%, the magnetic switch is connected to the ON contact point between the input power line and the output power line so that the phase unbalance is less than 1% in the second distribution panel matrix part.
In the above, if the phase imbalance is not less than 1%, the control server for connecting the magnetic switch to the ON contact point between the input power line and the output power line so that the phase imbalance is 1% or less in the third generation home matrix unit;
The control server receives the power consumption from the current transformer in the household distribution panel, converts the power consumption into carbon dioxide emission, and classifies the household calls by power usage rank, and transmits the carbon dioxide usage, power usage ranking, and current phase imbalance rate information to the generation panel. Display on my monitor;
The control server receives the current information of the load transformer, the transformer in the fixed distribution panel, the current transformer in the phase balance panel and the current transformer in the generation distribution panel, and divides the phase imbalance into a phase group in which the phase imbalance becomes less than 1% step by step. An automatic control controller for switching off standby power loss cutoff, characterized in that the magnetic switch is driven through a control command to remotely control the configuration of the wiring circuit between the loads for each phase.
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