KR101313281B1 - Fixed type mesuring device having split coil - Google Patents

Abstract

The fixed installation type measuring apparatus 100 according to the present invention is a device which is fixed to the power line and measures the amount of electricity of the power line,
A first module (10) having at least a first core (12) and a first housing (11) for receiving the first core (12); And a second module (20) having at least a second core (22) and a second housing (21) for accommodating the second core (22), wherein the first module (10) and the Since the second module 20 is detachable from each other, when the first module 10 and the second module 20 are combined, the first core 12 and the second core 22 constitute a closed path. When the first module 10 and the second module 20 are separated, the closed path is opened to allow uninterrupted installation of the power line, and the first core 12 has a first coil ( 14) is wound, and the second core 24 is wound around the second coil 24, and the coils are wound around both the first core 12 and the second core 22, respectively. .
According to the present invention, there is an effect that the deviation of the current signal according to the installation position of the power line is significantly reduced and the accuracy of current measurement is improved.

Description

Fixed-mount instrumentation with split coils {FIXED TYPE MESURING DEVICE HAVING SPLIT COIL}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixed mounting type measuring device having a split coil, and more particularly, to a fixed mounting type measuring device that measures electric power such as electric power of a power line in a non-contact manner.

In order to supply power to the environment, lighting, air conditioning, and manufacturing equipment, distribution boards or control panels are distributed by sites. The distribution panel or the control panel branches the power of the incoming main line to the branch line connected to each load, and may open and close the power supply of the main line and each branch line.

12 is a diagram illustrating an example of a conventional general distribution board.

The power supplied to the main line 1 may be opened and closed by the MCCB (Molded Case Circuit Breaker) 3 for the main line, and may be opened and closed by the branch MCCB 4 for the branch line 2 connected to each load. have. The main line 1 and each branch line 2 are electrically connected by a bus bar 5.

MCCB (Molded Case Circuit Breaker) is an integrated assembly of switchgear, trip device, etc. in the insulator container, which can open and close the electric current by manual or electric operation, and automatically in case of abnormality such as overload and disconnection Can be blocked.

However, in view of recent trends such as smart grids, voltage information, current information, power information, and power quality of each branch line as well as the main line for the purpose of monitoring voltage, current and power, power quality analysis, and immediate control results for each load. The inventors of the present application anticipate that the need to obtain and use information will increase.

However, in general distribution boards, control panels, etc., it is not easy to change the voltage information, the current information, the power information, and the power quality information for each load.

On the other hand, the general power measurement method senses the voltage and current flowing in the load and inputs it to the power meter, the power meter pre-processes it and converts it in the ADC (A / D converter: analog-to-digital converter), multiplication and cumulative operation Calculate active power, reactive power, apparent power, power amount, etc. In the process of sensing voltage and current, a voltage transformer (PT) and a current transformer (CT) are used to convert actual voltage and current into analog voltage signals and analog current signals.

Therefore, if you want to perform the power measurement for the main line and each branch line in the distribution panel or control panel, voltage transformer and current transformer should be installed for the main line and each branch line respectively. Current transformers can be installed in the form of perforated power lines, and voltage transformers must be electrically connected to the power lines.

In the conventional general distribution panel as shown in FIG. 12, there is a problem in that a space for installing a voltage transformer and a current transformer for each main line and each branch line is insufficient. In addition, in order to install a voltage transformer for each main line and each branch line, electrical connection should be made to the main line and each branch line, and wiring for electrical connection is additionally required, which leads to complicated wiring and short circuit, short circuit, or electric shock. There is a problem that increases the risk.

In addition, in order to install a current transformer for each main line and each branch line, the main line and each branch line have to penetrate the current transformer. Therefore, there is a problem in that the current transformer must be installed in a state where the power supply is cut off. In addition, since the power line must pass through the current transformer, when there is insufficient space to install the current transformer in the existing distribution panel, it becomes a problem when it is difficult to attach the current transformer to the power line. In addition, if the power line to pass through the current transformer is in the form of a busbar and employs a current transformer having a large diameter of the through hole in order to match the width of the busbar, a problem may arise in that the current transformer cannot be disposed within the width allocated for each branch line.

In addition, when the power line passes through the current transformer, it is often difficult to install through the exact center of the current transformer core or to always pass through the same point. The shape of the power line is various, the cross-sectional shape of the power line, the diameter of the power line, the installation height of the power line may be always variable. This factor has a problem of increasing the probability of bringing the measurement error of the current transformer.

The recognition of the problems and problems of the prior art is not obvious to a person having ordinary skill in the art, so that the inventive step of the present invention should not be judged based on the recognition based on such recognition I will reveal.

An object of the present invention is to provide a measuring device that can easily perform electrical measurement for each branch line as well as the main line in a distribution panel or a control panel.

It is also an object of the present invention to provide a measuring device that can be easily installed without increasing the complexity of electrical wiring in a distribution panel or a control panel.

In addition, an object of the present invention is to provide a measuring device that can be installed on a power line even in a state in which power supply is not interrupted.

It is also an object of the present invention to provide an electrical measuring device that can be easily installed in a distribution panel or a control panel having a narrow space.

It is also an object of the present invention to provide a measuring device that can be installed uninterrupted with respect to a power line.

It is also an object of the present invention to provide a measuring device capable of measuring an accurate current irrespective of a penetrating position of a power line.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

Fixed-mounted measuring device according to an aspect of the present invention is a fixed-mounted measuring device which is fixed to the three-phase power line is fixed to the side of the MCCB for opening and closing the three-phase power line,

Embedding a current transformer for the three-phase power line, receiving current data generated from the current transformer and voltage data by using data communication from another power line having the same voltage as the three-phase power line, and generating the current data And generate power data by using the received voltage data, and generate power data without electrical contact with the three-phase power line.

In the fixed installation type measuring device according to an aspect of the present invention, the fixed installation type measurement device is fixed to the power line to measure the amount of electricity of the power line,

A first module having at least a first core and a first housing for receiving the first core; And a second module having at least a second core, and a second housing for accommodating the second core, wherein the first module and the second module are detachable from each other. When the two modules are combined, the first core and the second core constitute a closed path, and when the first module and the second module are separated, the closed path is opened to allow uninterrupted installation of the power line. The coil is wound around at least one of the first core and the second core.

In the fixed installation type measuring device according to an aspect of the present invention, the fixed installation type measurement device is fixed to the power line to measure the amount of electricity of the power line,

A first module having at least a first core and a first housing for receiving the first core; And a second module having at least a second core, and a second housing for accommodating the second core, wherein the first module and the second module are detachable from each other. When the two modules are combined, the first core and the second core constitute a closed path, and when the first module and the second module are separated, the closed path is opened to allow uninterrupted installation of the power line. The first core may be wound around the first core, and the second coil may be wound around the second core, and the coil may be wound around both the first core and the second core.

A fixed installation type measuring device according to an aspect of the present invention is a fixed type type measuring device that measures an electric quantity with respect to a single-phase or three-phase power line including at least a first power line and a second power line.

An upper module having an upper housing for receiving at least a first upper core, a second upper core, the first upper core and the second upper core; And a lower module having at least a first lower core, a second lower core, and a lower housing accommodating the first lower core and the second lower core, wherein the upper module and the lower module are detachable from each other. And when the upper module and the lower module are combined, constitute a first core through which the first power line passes through the first upper core and the first lower core, and the second upper core and the second lower core. As a core constitutes a second core through which the second power line is penetrated,

A first upper coil and a second upper coil are respectively wound around the first upper core and the second upper core, and a first lower coil and a second lower coil are respectively wound around the first lower core and the second lower core. It features.

The distribution panel installation measuring system according to an aspect of the present invention is a distribution panel installation measuring system installed in a distribution panel for branching incoming main lines into a plurality of branch lines, and performing electrical measurement for the main line and the plurality of branch lines.

A voltage measuring device configured to sense a voltage with respect to the main line or one of the branch lines and generate voltage data based on the sensed voltage; Current current is generated by sensing current of one of the main lines or one of the plurality of branch lines using a current transformer, and receives voltage data generated by the voltage measuring device, and generates the generated current data and the received voltage. And a fixed installation type measurement device that generates power data using data, wherein the fixed installation type measurement device is installed corresponding to the main line and the plurality of branch lines, respectively, and the current transformer is a core part separated into two or more cores. It can be installed even in the state that the main line or the plurality of branch lines are live, characterized in that the coil is provided for each of the two or more cores.

According to an aspect of the present invention, in performing electrical measurement on a main line and a plurality of branch lines, only one of the main line and the plurality of branch lines needs to sense a voltage signal through an electrical connection, and the other part may have no effect of an electrical connection. have.

According to an aspect of the present invention, since the voltage data sensed at one place is received and used by communication from each fixed installation measuring device, each fixed installation measuring device has an effect of sensing the current of a corresponding electric line. Furthermore, since current sensing on the power line does not need an electrical connection to the power line, there is an effect of reducing the risk of short circuit, short circuit, electric shock, and the like due to the power connection.

According to an aspect of the present invention, there is an effect that the deviation of the current signal according to the installation position of the power line is significantly reduced and the accuracy of the current measurement is improved.

According to an aspect of the present invention, there is an effect that can reduce or eliminate the inconvenience of installation, damage to the wire connection during the installation process, or assembly difficulties during the production process, can be more easily installed and there is no damage during the installation process, It is very easy to produce and assemble.

According to an aspect of the present invention, electrical measurement can be easily performed on not only a main line but also a plurality of branch lines. Therefore, since electrical measurement can be performed for each load attached to the branch line, there is an effect that can be easily used for power management such as energy consumption management, efficiency management, and control result management for each load.

 According to an aspect of the present invention, there is an effect that it is easy to install a device for additional electrical measurement also for a distribution panel or a control panel that is already installed MCCB, EOCR, and the like.

According to an aspect of the present invention, there is an effect that the through-type measuring device of the present invention can be installed even in a live state, that is, an uninterruptible state.

According to an aspect of the present invention, there is an advantage that the through-type measuring device can be easily installed even in a situation where the free space between the power lines is narrow. According to one aspect of the present invention, there is an effect that can be easily adapted to the space between the narrow power line.

According to an aspect of the present invention, since the current transformer, the calibration unit, the calibration data, and the like are integrally configured, there is an effect of easily realizing higher precision.

1 is a view showing the appearance of a fixed installation type measuring apparatus 100 according to a first embodiment of the present invention.
2 is a view showing a state in which the fixed installation-type measurement device 100 according to the first embodiment of the present invention is installed.
3 is a view showing the modules of the fixed installation type measurement apparatus according to the first embodiment of the present invention separated from each other.
4 illustrates the upper module 10 and the lower module 20 with the upper housing 11 and the lower housing 21 removed for convenience of understanding in the fixed installation type measuring device according to the first embodiment of the present invention. It is a figure which shows a component.
5 is a view showing the appearance of a fixed installation type measurement apparatus 200 according to a second embodiment of the present invention.
6 is a diagram illustrating a state in which the fixed installation type measurement apparatus 200 according to the second embodiment of the present invention is installed.
7 is a diagram illustrating the modules of the fixed installation type measuring apparatus 200 according to the second embodiment of the present invention separated from each other.
8 illustrates the upper module 210 and the lower module 220 in a fixed installation type measuring device 200 according to the second embodiment of the present invention with the upper housing 211 and the lower housing 221 removed for convenience of understanding. It is a figure which shows the component parts which comprise this.
9 is a diagram illustrating an example of a distribution panel to which a distribution panel installation measuring system according to an embodiment of the present invention is applied.
10 is a diagram illustrating a voltage measuring device 500 according to an embodiment of the present invention.
FIG. 11 is a diagram illustrating a detailed electrical configuration of the fixed installation type measuring apparatus 100 and 200 according to an exemplary embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which: FIG. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention in the drawings, parts not related to the description are omitted, and similar names and reference numerals are used for similar parts throughout the specification.

1 is a view showing the appearance of a fixed installation type measurement device 100 according to a first embodiment of the present invention, Figure 2 is a state in which the fixed installation type measurement device 100 according to a first embodiment of the present invention is installed. Figure is shown.

The fixed installation type measuring device 100 is a device that is fixed to the power line to measure the amount of electricity of the power line, may be fixed to the side of the MCCB (4). 2 illustrates a situation in which three fixed installation type measuring apparatuses 100 are installed in parallel with respect to a three-phase electric power line. The power line 6 penetrates through the through hole 101, and the fixed installation type measuring device 100 basically senses the current of the power line 6, but not only the current sensing function but also the current data generation function and data. It may further include a communication function, arithmetic function, control function and the like. For example, the fixed installation type measuring device 100 may be configured as a current transformer including only a current sensing function, or may be configured as a device for generating power measurement data using voltage data obtained through communication. .

It should be noted that the fixed installation type measuring device 100 does not electrically contact the power line only through the power line through the through hole 101. The fixed installation type measuring device 100 receives current data of a neighboring power line constituting the three-phase power line and voltage data of the three-phase power line through the communication ports 17-3A and 17-3B, and generates the current by itself. The data and the received voltage data may be used to generate measurement data regarding power.

3 is a view showing the modules of the fixed installation type measurement apparatus according to the first embodiment of the present invention separated from each other.

The fixed installation type measuring device 100 may include an upper module 10, a lower module 20, a mounting bracket 30, a first fastening means 41, and a second fastening means 42.

In the case where the fixed installation type measuring device 100 is installed in the power line, the form in which one end of the power line is inserted through the through hole 101 requires opening of the power line, and thus, uninterruptible installation is difficult. However, the fixed installation type measuring device according to the first embodiment of the present invention can be installed in a live state, that is, uninterrupted installation without opening the power line.

With the power line (not shown) intact, the mounting bracket 30 is fastened to the enclosure (not shown) constituting the distribution panel or the control panel by using the second fastening means 42 under the power line, and then the lower module. 20 is inserted in the lateral direction so as to be caught by the locking projection 32 of the mounting bracket (30). The lower module 20 has a locking wing (not shown) corresponding to the locking step 32 of the mounting bracket 30. And the upper module 10 is coupled to the lower module 20 using the upper fastening means 41 while surrounding the power line. The upper module 10 is easily detached from the lower module 20, and the lower module 20 is easily detached from the mounting bracket 30.

The upper module 10 includes an upper housing 11, and the upper housing 11 houses various components constituting the upper module 10. The lower module 20 includes a lower housing 21, and the lower housing 21 houses various components of the lower module 20.

4 illustrates the upper module 10 and the lower module 20 with the upper housing 11 and the lower housing 21 removed for convenience of understanding in the fixed installation type measuring device according to the first embodiment of the present invention. It is a figure which shows a component. 4 is a view showing a state in which the upper module 10 and the lower module 20 are coupled.

The upper module 10 includes an upper housing 11 (not shown), an upper core 12, an upper bobbin 13, an upper coil 14, an upper pogo pin 15, an upper wiring board 16, and an electronic circuit. Module 17 is configured. The lower module 20 includes a lower housing 21 (not shown), a lower core 22, a lower bobbin 23, a lower coil 24, a lower pogo pin 25, and a lower wiring board 26. It is composed. The core part is formed of an upper core 12 and a lower core 22.

The upper module 10 and the lower module 20 are detachable from each other. When the upper module 10 and the lower module 20 are combined, the upper core 12 and the lower core 22 constitute a closed path. When the upper module 10 and the lower module 20 are separated, the closed path of the upper core 12 and the lower core 22 is opened.

The upper coil 12 is wound around the upper core 12 via the upper bobbin 13, and the lower coil 24 is wound around the lower core 22 via the lower bobbin 23. Thus, coils are wound around both the upper core 12 and the lower core 22, respectively.

An upper core 12, an upper bobbin 13, an upper coil 14, a lower core 22, a lower bobbin 23, and a lower coil 24 constitute a current transformer. Current is sensed to generate a current signal.

The fixed installation type measuring device according to the first embodiment of the present invention is characterized in that a coil is provided at both the upper and lower portions of the core part. When the coil is wound on only one side, the magnetic coupling degree between the power line and the coil to be penetrated varies greatly depending on the passing position of the power line, which causes a problem in that the measured value fluctuates. However, if the coils are evenly wound on both sides, the magnetic coupling between the power line and the coils that are penetrated by the symmetrical coupling changes much less depending on the passing position of the power line, which greatly reduces the variation of the measured value.

As a result of experiments by the inventors of the present invention, the coil having only one side of the core part was found to have a more significant variation in the magnitude of the current signal sensed according to the position of the power line than the present invention. For example, there is a deviation between the current signal when the power line is biased toward the upper core 12 and the current signal when it is biased toward the lower core 22 when the upper core 12 is coiled only. Large one was investigated. However, according to the present invention, there is an effect that the deviation of the current signal according to the position of the power line is significantly reduced.

Both ends of the upper coil 14 are connected to the upper wiring board 16 through the first connecting pin 18, and both ends of the lower coil 24 are connected to the lower wiring board 26 through the second connecting pin 28. The upper wiring board 16 is connected to the electronic circuit module 17 through the third connecting pin 19.

In addition, the upper module 10 is provided with an upper pogo pin 15, and the lower module 20 is provided with a lower pogo pin 25, the upper pogo pin 15 and the lower pogo pin 25 is lower The lower coil 24 of the module 20 is electrically connected to the upper module 10 side. In some cases, the upper pogo pin 15 and the lower pogo pin 16 may also be used to electrically connect the upper coil 14 of the upper module 10 to the lower module 20 side. One side of the upper pogo pin 15 or the lower pogo pin 25 may be a simple conductor instead of the pogo pin.

The upper pogo pin 15 and the lower pogo pin 25 are electrically connected between the upper module 10 and the lower module 20 by elastic contact when there is a combination of the upper module 10 and the lower module 20. Form a path. For example, the pogo pin may consist of an upper probe, a lower probe, an outer cylinder, and a spring (not shown). The spring imparts a spring force to the upper and lower probes located at both ends of the spring, and the outer cylinder has a structure in which one end of the upper probe and one end of the lower probe are exposed to the outside of the outer cylinder at the same time. have. In addition to the foregoing forms, various forms of pogo pins may be used in the present invention.

One end of the upper pogo pin 15 is seated on the upper wiring board 16 to support one end of the upper pogo pin 15, and the upper wiring board 16 is in contact with the one end of the upper pogo pin 15. The pattern 16-1 is formed. One end of the lower pogo pin 25 is seated on the lower wiring board 26 to support one end of the lower pogo pin 25, and the lower wiring board 26 is in contact with the one end of the lower pogo pin 25. The conductive pattern 26-1 is formed.

According to the present invention by using the upper pogo pin 15 and / or lower pogo pin 25, according to the fastening between the upper module 10 and the lower module 20, naturally the upper module 10 and lower module 20 To form an electrical path between them.

It is assumed that the formation of such an electrical path is possible even if a general wire is used without using pogo pins such as the upper pogo pin 15 and the lower pogo pin 25. For example, both ends of the lower coil 24 may be extended to directly connect to the electronic circuit module 17. In this case, since the wires must always be connected between the upper module 10 and the lower module 20, it is not possible to completely separate between the upper module 10 and the lower module 20, and thus there is inconvenience in installation. In addition, since the upper module 10 is attached to the lower module 20 by wires during the process of installing the fixed installation type measuring device 100 on the distribution panel or the control panel, damage to the wire connection may occur. There is difficulty in assembly during the production process of 100.

However, according to the present invention, by using the upper pogo pin 15 and / or lower pogo pin 25, there is an effect that can solve all the inconvenience in installation, damage during the installation process, difficulty in assembly during the production process and the like.

The electronic circuit module 17 includes, in the fixed installation type measuring device 100, a function of converting a current signal sensed through a current transformer into current data, a data communication function, a control function, a calculation function, and the like. The electronic circuit module 17 includes various electronic circuit elements mounted on the PCB substrate 17-1, in particular, performs data communication through the communication ports 17-3A and 17-3B, and displays the display elements 17. Various information can be displayed through -4).

5 is a view showing the appearance of a fixed installation type measurement device 200 according to a second embodiment of the present invention, Figure 6 is a state in which the fixed installation type measurement device 200 according to a second embodiment of the present invention is installed. Figure is shown.

The fixed installation type measuring device 200 according to the second embodiment of the present invention is integrally configured as a measuring device for measuring the three-phase power lines 6A, 6B, and 6C, and is similarly configured for the single-phase power line. Can be. The fixed installation type measuring device 200 according to the second embodiment of the present invention may be applied at a place having two or more power lines.

The fixed installation type measurement apparatus 200 shown is a device that is fixed to the three-phase power line (6A, 6B, 6C) to measure the amount of electricity of the three-phase power line, can be fixedly installed on the side of the MCCB (4). . Each of the power lines 6A, 6B, 6C is penetrated through each of the through holes 201A, 201B, 201C, and the fixed installation type measuring device 200 basically uses the current of each power line 6A, 6B, 6C. However, the present invention may further include a current data generation function, a data communication function, a calculation function, a control function, and the like, in addition to the current sensing function. For example, the fixed installation type measuring device 200 may be configured as a current transformer including only a current sensing function, or may be configured as a device for generating power measurement data using voltage data obtained through communication. .

It should be noted that the fixed installation type measuring device 100 only passes through the power lines 6A, 6B, and 6C through the through holes 201A, 201B, and 201C, and does not make electrical contact with the power line. The fixed installation type measurement apparatus 200 may receive voltage data through the communication ports 17-3A and 17-3B, and generate measurement data about power by using current data and received voltage data that are generated by itself.

7 is a diagram illustrating the modules of the fixed installation type measuring apparatus 200 according to the second embodiment of the present invention separated from each other.

The fixed installation type measuring device 200 may include an upper module 210, a lower module 220, a mounting bracket 230, a first fastening means 241, and a second fastening means 242.

When the fixed installation type measuring device 200 is installed in the power line, the form of inserting one end of the power line through the through hole 101 requires opening of the power line, and thus, uninterruptible installation is difficult. However, the fixed installation type measuring device 200 according to the second embodiment of the present invention can be installed in a live state, that is, uninterrupted installation without opening the power line.

With the power line (not shown) intact, the mounting bracket 230 is fastened to the enclosure (not shown) constituting the distribution panel or the control panel by using the second fastening means 242 under the power line, and then the lower module. Insert 220 in the lateral direction to be caught by the locking step 232 of the mounting bracket 230. The lower module 220 has a locking wing (not shown) corresponding to the locking step 232 of the mounting bracket 230. The upper module 210 is coupled to the lower module 220 by using the first fastening means 241 while surrounding the power line. The upper module 210 is easily detached from the lower module 220, and the lower module 220 is easily detached from the mounting bracket 230.

The upper module 210 includes an upper housing 211 and accommodates various components constituting the upper module 210 in the upper housing 211. The lower module 220 includes a lower housing 221, and the lower housing 221 accommodates various components of the lower module 220.

8 illustrates the upper module 210 and the lower module 220 in a fixed installation type measuring device 200 according to the second embodiment of the present invention with the upper housing 211 and the lower housing 221 removed for convenience of understanding. It is a figure which shows the component parts which comprise this. 8 is a view showing a state in which the upper module 210 and the lower module 220 are coupled.

The upper module 210 may include an upper housing 211 (not shown), first upper cores to third upper cores 212A, 212B, and 212C, first upper bobbins to third upper bobbins 213A, 213B, and 213C, The first to third upper coils 214A, 214B, and 214C include an upper pogo pin 215, an upper wiring board 216, and an electronic circuit module 217.

The lower module 20 may include a lower housing 221 (not shown), first lower cores to third lower cores 222A, 222B, and 222C, first lower bobbins to third lower bobbins 223A, 223B, and 223C, The first lower coil to the third lower coils 224A, 224B, and 224C may include a lower pogo pin 225 and a lower wiring board 226.

A first upper core 212A and a first lower core 222A constitute a first core portion, and a second upper core 212B and a second lower core 222B constitute a second core portion, and a third upper core. A third core portion is constituted by 212C and a third lower core 222C.

The upper module 210 and the lower module 220 are detachable from each other. When the upper module 210 and the lower module 220 are combined, the upper module 210 and the lower module 220 are menopause as the first upper core 212A and the first lower core 222A. A furnace is constituted by the second upper core 212B and the second lower core 222B, and the lung route is constituted by the third upper core 212C and the third lower core 222C. When the upper module 210 and the lower module 220 are separated, the menopause path is opened.

Each of the first upper core to the third upper cores 212A, 213B, and 212C has a first upper coil to a third upper coil 214A via a first upper bobbin to a third upper bobbin 213A, 213B, and 213C, respectively. , 214B and 214C are respectively wound, and each of the first lower core to the third lower cores 222A, 222B and 222C is interposed between the first lower bobbin and the third lower bobbin 223A, 223B and 223C, respectively. The first lower coil to third lower coils 224A, 224B, and 224C are respectively wound.

Including a first upper core 212A, a first upper bobbin 213A, a first upper coil 214A, a first lower core 222A, a first lower bobbin 223A and a first lower coil 224A A first current transformer constitutes a first upper current transformer 212B, a second upper bobbin 213B, a second upper coil 214B, a second lower core 222B, a second lower bobbin 223B, and a second lower portion. The coil 224B includes a second current transformer, and includes a third upper core 212C, a third upper bobbin 213C, a third upper coil 214C, a third lower core 222C, and a third lower bobbin. And a third lower current transformer 223C and a third lower coil 224C.

Each of the first to third current transformers senses a current for each power line that passes through to generate a current signal.

The fixed installation type measuring device 200 according to the second embodiment of the present invention is characterized in that coils are provided at both upper and lower portions of each core part. When the coil is wound on only one side, the magnetic coupling degree between the power line and the coil to be penetrated varies greatly depending on the passing position of the power line, which causes a problem in that the measured value fluctuates. However, if the coils are evenly wound on both sides, the magnetic coupling between the power line and the coils that are penetrated by the symmetrical coupling changes much less depending on the passing position of the power line, which greatly reduces the variation of the measured value.

As a result of experiments by the inventors of the present invention, the coil having only one side of the core part was found to have a more significant variation in the magnitude of the current signal sensed according to the position of the power line than the present invention. For example, the current signal and lower cores 222A, 222B, and 222C when the power lines are biased toward the upper cores 212A, 212B, and 212C when the upper cores 212A, 212B, and 212C have coils only. A large deviation was found between the current signals when they were biased toward. However, according to the present invention, there is an effect that the deviation of the current signal according to the position of the power line is significantly reduced.

Both ends of each of the upper coils 214A, 214B, and 214C are connected to the upper wiring board 216 through a first connecting pin 218, and both ends of each of the lower coils 224A, 224B, and 224C are connected to the second connecting pin ( The upper wiring board 216 is connected to the lower wiring board 226 through the 228, and the upper wiring board 216 is connected to the electronic circuit module 217 through the third connecting pin 219.

In addition, the upper module 210 is provided with an upper pogo pin 215, the lower module 220 is provided with a lower pogo pin 225, the upper pogo pin 215 and the lower pogo pin 216 is a lower Each lower coil 224A, 224B, 224C of the module 220 is electrically connected to the upper module 210 side. In some cases, the upper pogo pin 215 and the lower pogo pin 216 may also be used to electrically connect the respective upper coils 214A, 214B, and 214C of the upper module 210 to the lower module 220 side. . One side of the upper pogo pin 215 or the lower pogo pin 225 may be a simple conductor instead of the pogo pin.

The upper pogo pin 215 and the lower pogo pin 225 are electrically connected between the upper module 210 and the lower module 220 by elastic contact when there is a combination of the upper module 210 and the lower module 220. Form a path. For example, the pogo pin may consist of an upper probe, a lower probe, an outer cylinder, and a spring (not shown). The spring imparts a spring force to the upper and lower probes located at both ends of the spring, and the outer cylinder has a structure in which one end of the upper probe and one end of the lower probe are exposed to the outside of the outer cylinder at the same time. have. In addition to the foregoing forms, various forms of pogo pins may be used in the present invention.

One end of the upper pogo pin 215 is seated on the upper wiring board 216 to support one end of the upper pogo pin 215, and the upper wiring board 216 is in contact with the one end of the upper pogo pin 215. The pattern 216-1 is formed. One end of the lower pogo pin 225 is seated on the lower wiring board 226 to support one end of the lower pogo pin 225, and the lower wiring board 226 contacts the one end of the lower pogo pin 225. The conductive pattern 226-1 is formed.

According to the present invention by using the upper pogo pin 215 and / or lower pogo pin 225, according to the fastening between the upper module 210 and the lower module 220, naturally the upper module 210 and lower module 220 To form an electrical path between them.

It is possible to form such an electrical path even if a general wire is used without using pogo pins such as the upper pogo pins 215 and the lower pogo pins 225. For example, both ends of each of the lower coils 224A, 224B, and 224C may be extended to be directly connected to the electronic circuit module 217. In this case, since the wires must always be connected between the upper module 210 and the lower module 220, it is not possible to completely separate between the upper module 210 and the lower module 220, thereby causing inconvenience in installation. In addition, since the upper module 210 and the lower module 220 should be separated from each other during the installation process, the wires extending from both ends of the lower coils 224A, 224B, and 224C are collected on one side of the outer side, and thus the upper coils 214A. , 214B, 214C) will each be connected by a long path. In addition, due to the upper module 210 is attached to the lower module 220 during the process of installing the fixed installation type measurement device 100 to the distribution panel or the control panel, wire connection may be damaged, and the fixed installation type measurement device ( There is difficulty in assembly during the production process of 200).

However, according to the present invention, by using the upper pogo pin 215 and / or lower pogo pin 225, all the inconveniences of installation, the problem of the length of the coil connection path, damage during the installation process, assembly difficulties during the production process, etc. Thus, it can be more easily installed, there is no damage during the installation process, there is a very easy effect of production and assembly.

The electronic circuit block 217 of the fixed installation type measuring device 200 includes a function of converting a current signal sensed through each current transformer into current data, a data communication function, a control function, a calculation function, and the like. The electronic circuit block 217 includes various electronic circuit elements mounted on the PCB substrate 217-1, in particular, performs data communication through the communication ports 217-3A and 217-3B, and displays the display element 217. Various information can be displayed through -4).

9 is a diagram illustrating an example of a distribution panel to which a distribution panel installation measuring system according to an embodiment of the present invention is applied.

The distribution panel performs a function of branching incoming main lines into a plurality of branch lines, and an MCCB is generally provided for each of the main line and the plurality of branch lines.

The distribution panel installation measuring system according to an embodiment of the present invention includes a voltage measuring device 500 and a plurality of fixed installation type measuring devices 100 and 200 to perform electrical measurement on a main line and a plurality of branch lines.

The voltage measuring apparatus 500 includes a function of sensing a voltage with respect to one of the main lines and the plurality of branch lines and generating voltage data based on the sensed voltage. In the example shown in FIG. 9, the voltage is sensed with respect to the main line, but it is not necessary to sense the voltage with respect to the main line, and the voltage may be sensed with respect to one of the plurality of branch lines. Since the voltage is the same in the main line or the plurality of branch lines, the voltage measuring device 500 may sense a voltage with respect to at least one of the main line or the plurality of branch lines.

In addition to the voltage measurement function, the voltage measurement device 500 may communicate with the fixed installation type measurement devices 100 and 200, provide a voltage data to the fixed installation type measurement devices 100 and 200, and the measurement generated by the fixed installation type measurement devices 100 and 200. It may have a function of collecting data and reporting to a higher level, a communication function with a higher network, a display function, and the like.

The communication cable 600 configures a line for data communication between the fixed installation type measurement device 100, the fixed installation type measurement device 200, and the voltage measurement device 500.

10 is a diagram illustrating a voltage measuring device 500 according to an embodiment of the present invention.

The voltage measuring device 500 includes a voltage transformer 501, an ADC 502, a calibration unit 503, a control unit 505, a display unit 506, an operation unit 507, a first data communication unit 508, and a second unit. The data communication unit 509, the memory 510, and the first connector 511 to the fourth connector 514 are configured. Each block constituting the voltage measuring device 500 is not necessarily implemented as shown in FIG. 10, but may be integrated or separated into any suitable form.

The voltage transformer 501 generates a sensing signal by sensing a voltage with respect to the main line or one of the plurality of branch lines, and may be separately installed inside or outside the voltage measuring device 500. The ADC 502 generates digital voltage data by analog-to-digital converting the sensing signal. The calibration unit 503 calibrates the voltage data based on the calibration data, and the calibration data is generated during or after the manufacturing process of each voltage measuring device 500 and stored in the memory 510, and thus the calibration data. May be different for each individual voltage measuring device 500.

The controller 505 performs a function of controlling each component and data flow constituting the voltage measuring device 500. The display unit 506 is exposed to the outside of the voltage measuring device 500 to display information necessary for the user, and the operation unit 507 performs a function of inputting commands and information from the user. The memory 510 stores a program, information, temporary data, calibration data, and the like necessary for performing the operation of the voltage measuring apparatus 500.

The first data communication unit 508 performs serial communication with the fixed installation type measurement apparatus 100, 200, and the serial communication is, for example, RS485 communication. The second data communication unit 509 performs a communication function with a higher network and performs TCP / IP communication through, for example, Ethernet. The first connector 511 and the second connector 512 are connectors for connecting the first data communication unit 508 and a communication line, for example, an RJ12 connector. The third connector 513 and the fourth connector 514 are connectors for connecting the second data communication unit 509 and a communication cable, for example, RJ45 connectors.

Returning to FIG. 9, the fixed installation type measuring apparatuses 100 and 200 are provided for every main line or several branch lines which are to be measured. The fixed installation type measuring device 100 and 200 performs a function of sensing a current of each power line and does not sense a voltage. The fixed installation type measuring apparatuses 100 and 200 are respectively installed corresponding to a main line and a plurality of branch lines. The fixed installation type measuring apparatus 100 is provided for each electric power line, and is installed in four lines of a main line in the example of FIG. The fixed installation type measuring device 200 is integrally installed with respect to a three-phase or single-phase power line, and is installed at each branch line in the example of FIG. 9.

The fixed installation type measuring device (100,200) generates current data by sensing a current on the main line or a plurality of branch lines using a current transformer, receives the voltage data generated by the voltage measuring device 500, and transmits the generated current data Power data is generated using the received voltage data.

FIG. 11 is a diagram illustrating a detailed electrical configuration of the fixed installation type measuring apparatus 100 and 200 according to an exemplary embodiment of the present invention.

The fixed installation type measuring apparatuses 100 and 200 may be installed in a distribution panel or a control panel, and may be installed at all positions before and after branches. Current transformer 400 senses the current flowing in the main line or a plurality of branch lines. The current transformer 400 may be the current transformer shown in FIG. 4 or 8. The current transformer 400 may be a plurality of current transformers integrally included in the fixed installation type measurement apparatus 200, or may mean a single current transformer included in the fixed installation type measurement apparatus 100.

The electronic circuit unit 300 may be functionally included in the electronic circuit modules 17 and 217 illustrated in FIGS. 4 and 8. The electronic circuit unit 300 includes an ADC 310, a calibration unit 320, an operation unit 330, a control unit 340, a data communication unit 350, a display unit 360, an operation unit 370, a memory 380, A first connector 390A and a second connector 390B are included. For convenience of description, the block is configured as described above for each function, but other configurations are possible.

The ADC 310 generates current data by analog-to-digital converting the current signal. The calibration unit 320 performs calibration on the current data based on the individual calibration data stored in the memory 380. The memory 380 stores a program, information and temporary data, calibration data, and an ID of the fixed installation type measuring device 100, 200 necessary for performing the operation of the fixed type measuring device 100, 200. In particular, the memory 380 stores individual calibration data and IDs of the fixed installation type measuring devices 100 and 200 which are set to correspond to individual characteristics of the current transformer 400.

As shown in FIGS. 4 and 8, the current transformer 400 and the electronic circuit unit 300 are integrally formed, and thus the current transformer 400, the memory 380, and the calibration unit 320 are integrally formed. For each current transformer 400 that is integrated, calibration data is set to meet individual characteristics. The calibration data may be set and stored during or after the manufacturing process of the fixed installation type measuring apparatus 100, 200.

The calculation unit 330 calculates power data by calculating voltage data received by the data communication unit 350 and current data obtained through the current transformer 400. The power data may be data such as active power, reactive power, apparent power, power amount, power efficiency, and the like.

The controller 340 performs a function of controlling each component and data flow constituting the fixed installation type measuring apparatus 100, 200. The display unit 360 is exposed to the outside of the fixed installation type measuring apparatuses 100 and 200 and performs a function of displaying information necessary for a user, and particularly displays an ID of the through type measuring apparatus. The operation unit 370 performs a function of inputting a command and information from a user.

The data communication unit 350 receives, via digital communication, voltage data by a voltage signal sensed by another power line having the same voltage as the power line on which the fixed installation type measuring apparatuses 100 and 200 are installed. The data communication unit 350 may receive a synchronization signal from the voltage measuring device 500. In order to synchronize the sampling time points between the voltage measuring device 500 and the fixed mounting type measuring apparatuses 100 and 200, the voltage measuring device 500 may provide a synchronization signal to the fixed mounting type measuring apparatuses 100 and 200.

The data communication unit 350 performs a function of receiving voltage data generated by the voltage measuring device 500 through a communication line, and transmits generated current data, power data, and the like. The data communication unit 350 transmits power data to the voltage measuring device 500, and the voltage measuring device 500 may transmit the power data to a server in a higher network. The first connector 390A and the second connector 390B are connectors for connecting the communication line with the data communication unit 350, and the communication ports 17-3A and 17-3B shown in FIG. 4 and shown in FIG. May be substantially the same as the communication ports 217-3A, 217-3B, for example, an RJ12 connector.

In the case of the fixed installation type measurement device 200 including a plurality of current transformers, the ADC 310 and the calibration unit 320 may be configured for a plurality of current signals, respectively. Meanwhile, in the case of the fixed installation type measuring device 100 including a single current transformer, the ADC 310 and the calibration unit 320 may be configured for a single current signal.

As shown in the main line of FIG. 9, when one fixed installation type measuring device 100 is installed for each of the power lines, one of the fixed installation type measuring device 100 may calculate power. In this case, the current data measured in the remaining power lines among the four power lines constituting the three-phase four lines are received through the communication cable 600 and the data communication unit 350.

10, 210: upper module 12, 212A, 212B, 212C: upper core
13, 213A, 213B, 213C: Upper bobbin 14, 214A, 214B, 214C: Upper coil
15, 215A, 215B, 215C: upper pogo pin 20, 220: lower module
22, 222A, 222B, 222C: Lower core 23, 223A, 223B, 223C: Lower bobbin
24, 224A, 224B, 224C: Lower coil 25, 225A, 225B, 225C: Lower pogo pin
100, 200: Fixed installation measuring device

Claims (22)

delete delete In the fixed installation type measuring device which is fixed to the electric power line to measure the electricity amount of the electric power line,
A first module having at least a first core and a first housing for receiving the first core;
And a second module having at least a second core, and a second housing for receiving the second core.
The first module and the second module are detachable from each other, so that when the first module and the second module are combined, the first core and the second core form a closed path, and the first module and the second module When the module is separated, the closed path is opened to allow uninterrupted installation of the power line.
A first coil is wound around the first core, a second coil is wound around the second core, and coils are wound around both the first core and the second core,
A display unit displaying at least an ID of the fixed installation type measuring device;
Fixed installation type measurement device further comprising.
In the fixed installation type measuring device which is fixed to the electric power line to measure the electricity amount of the electric power line,
A first module having at least a first core and a first housing for receiving the first core;
And a second module having at least a second core, and a second housing for receiving the second core.
The first module and the second module are detachable from each other, so that when the first module and the second module are combined, the first core and the second core form a closed path, and the first module and the second module When the module is separated, the closed path is opened to allow uninterrupted installation of the power line.
A first coil is wound around the first core, a second coil is wound around the second core, and coils are wound around both the first core and the second core,
It is a current transformer including the first core, the first coil, the second core and the second coil,
Memory for storing individual calibration data set to correspond to individual characteristics of the current transformer; And
A calibration unit for performing calibration on the current signal output from the current transformer based on the individual calibration data stored in the memory;
Fixed installation type measurement device further comprising.
In the fixed installation type measuring device which is fixed to the electric power line to measure the electricity amount of the electric power line,
A first module having at least a first core and a first housing for receiving the first core;
And a second module having at least a second core, and a second housing for receiving the second core.
The first module and the second module are detachable from each other, so that when the first module and the second module are combined, the first core and the second core form a closed path, and the first module and the second module When the module is separated, the closed path is opened to allow uninterrupted installation of the power line.
A first coil is wound around the first core, a second coil is wound around the second core, and coils are wound around both the first core and the second core,
The first module or at least to electrically connect the first coil provided in the first module to the second module side, or to electrically connect the second coil provided in the second module to the first module side; Pogo pins provided on at least one of the second modules;
Fixed installation type measurement device further comprising.
In the fixed installation type measuring device which is fixed to the electric power line to measure the electricity amount of the electric power line,
A first module having at least a first core and a first housing for receiving the first core;
And a second module having at least a second core, and a second housing for receiving the second core.
The first module and the second module are detachable from each other, so that when the first module and the second module are combined, the first core and the second core form a closed path, and the first module and the second module When the module is separated, the closed path is opened to allow uninterrupted installation of the power line.
A first coil is wound around the first core, a second coil is wound around the second core, and coils are wound around both the first core and the second core,
Housed in at least one of the first module and the second module to form an electrical path between the first module and the second module by elastic contact when there is a combination of the first module and the second module Pogo pins;
Fixed installation type measurement device further comprising.
The method according to claim 5 or 6,
A wiring board accommodated in at least one of the first module and the second module, wherein one end of the pogo pin is seated to support one end of the pogo pin, and a conductive pattern is formed to contact one end of the pogo pin. ;
Fixed installation type measurement device further comprising.
In the fixed installation type measuring device which is fixed to the electric power line to measure the electricity amount of the electric power line,
A first module having at least a first core and a first housing for receiving the first core;
And a second module having at least a second core, and a second housing for receiving the second core.
The first module and the second module are detachable from each other, so that when the first module and the second module are combined, the first core and the second core form a closed path, and the first module and the second module When the module is separated, the closed path is opened to allow uninterrupted installation of the power line.
A first coil is wound around the first core, a second coil is wound around the second core, and coils are wound around both the first core and the second core,
A mounting bracket fastened to a housing constituting a distribution panel or a control panel, wherein the mounting bracket detaches the second module;
Fixed installation type measurement device further comprising.
The method according to claim 3,
An analog-to-digital converter configured to generate current data by analog-to-digital converting a current signal from a current transformer including the first core, the first coil, the second core, and the second coil;
And a data communication unit configured to receive voltage data generated by analog-to-digital conversion of a voltage signal sensed on another power line having the same voltage as the power line through digital communication.
And measuring electric power without electrical contact to the power line by calculating the current data and the voltage data.
A fixed installation type measuring device for measuring an electric quantity for a single-phase or three-phase power line including at least a first power line and a second power line,
An upper module having an upper housing for receiving at least a first upper core, a second upper core, the first upper core and the second upper core;
And a lower module having at least a first lower core, a second lower core, and a lower housing for receiving the first lower core and the second lower core.
The upper module and the lower module is removable from each other,
When the upper module and the lower module are combined, the first upper core and the first lower core constitute a first core through which the first power line passes, and the second upper core and the second lower core are formed. As a second core is configured to penetrate the second power line,
A first upper coil and a second upper coil are respectively wound around the first upper core and the second upper core, and a first lower coil and a second lower coil are respectively wound around the first lower core and the second lower core. Fixed installation measuring device.
The method of claim 10,
The first current transformer is configured to include a first upper core, the first upper coil, the first lower core, and the first lower coil, and a second upper core, the second upper coil, the second lower core, and the Including a second lower coil to become a second current transformer,
A memory for storing individual calibration data set to correspond to individual characteristics of the first current transformer and the second current transformer;
A calibration unit configured to perform calibration on current signals output from the first current transformer and the second current transformer based on the individual calibration data stored in the memory;
Fixed installation type measuring device comprising a.
The method of claim 10,
The at least one of the upper module and the lower module to electrically connect the first upper coil and the second upper coil to the lower module side or to electrically connect the first lower coil and the second lower coil to the upper module side. A plurality of pogo pins housed in at least one or more;
Fixed installation type measurement device comprising a.
The method of claim 10,
A plurality of pogo pins housed in at least one of the upper module and the lower module to form an electrical path between the upper module and the lower module by elastic contact when there is a combination of the upper module and the lower module;
Fixed installation type measurement device comprising a.
The method according to claim 12 or 13,
It is received in at least one of the upper module and the lower module, one end of each pogo pin constituting the plurality of pogo pin is seated to support one end of each pogo pin, and is connected to one end of each pogo pin A wiring board on which a conductive pattern is formed;
Fixed installation type measurement device further comprising.
The method of claim 10,
A mounting bracket fastened to a housing constituting a distribution panel or a control panel, wherein the lower module is detachable;
Fixed installation type measurement device further comprising.
The method of claim 10,
A first current transformer comprising the first upper core, the first upper coil, the first lower core, and the first lower coil, the second upper core, the second upper coil, the second lower core, and An analog-digital converter for generating current data by analog-to-digital converting a current signal from a second current transformer including the second lower coil;
And a data communication unit configured to receive, via digital communication, voltage data generated by analog-to-digital conversion of a voltage signal sensed in each of the other power lines having the same voltage as the first power line and the second power line.
And measuring electric power without electrical contact to the power line by calculating the current data and the voltage data.
The method of claim 10,
A display unit displaying at least an ID of the fixed installation type measuring device;
Fixed installation type measuring device comprising a.
A distribution board installation measuring system installed in a distribution board for branching incoming main lines into a plurality of branch lines, and performing electrical measurement on the main line and the plurality of branch lines.
A voltage measuring device configured to sense a voltage with respect to the main line or one of the branch lines and generate voltage data based on the sensed voltage;
Current current is generated by sensing current of one of the main lines or one of the plurality of branch lines using a current transformer, and receives voltage data generated by the voltage measuring device, and generates the generated current data and the received voltage. Including a fixed installation type measurement device for generating power data using the data, including,
The fixed installation type measuring device is provided corresponding to the main line and the plurality of branch lines, respectively.
The current transformer may include a core portion separated into two or more cores, and may be installed even when the main line or the plurality of branch lines are in a live state, and coils are provided for each of the two or more cores. .
delete In the current transformer is fixed to the penetrating power line and generates a current signal by sensing the current flowing through the power line,
A first module having at least a first core and a first housing for receiving the first core;
And a second module having at least a second core, and a second housing for receiving the second core.
The first module and the second module are detachable from each other, so that when the first module and the second module are combined, the first core and the second core form a closed path, and the first module and the second module When the module is separated, the closed path is opened to allow uninterrupted installation of the power line.
A first coil is wound around the first core, a second coil is wound around the second core, and coils are wound around both the first core and the second core,
The first module or at least to electrically connect the first coil provided in the first module to the second module side, or to electrically connect the second coil provided in the second module to the first module side; Pogo pins provided on at least one of the second modules;
Current transformer further comprising a.
In the current transformer is fixed to the penetrating power line and generates a current signal by sensing the current flowing through the power line,
A first module having at least a first core and a first housing for receiving the first core;
And a second module having at least a second core, and a second housing for receiving the second core.
The first module and the second module are detachable from each other, so that when the first module and the second module are combined, the first core and the second core form a closed path, and the first module and the second module When the module is separated, the closed path is opened to allow uninterrupted installation of the power line.
A first coil is wound around the first core, a second coil is wound around the second core, and coils are wound around both the first core and the second core,
Housed in at least one of the first module and the second module to form an electrical path between the first module and the second module by elastic contact when there is a combination of the first module and the second module Pogo pins;
Current transformer further comprising a.
The method according to claim 20 or 21,
A wiring board accommodated in at least one of the first module and the second module, wherein one end of the pogo pin is seated to support one end of the pogo pin, and a conductive pattern is formed to contact one end of the pogo pin. ;
Current transformer further comprising a.

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