KR101899091B1 - Ami pillar transformer load measurement and power supply probe - Google Patents

Abstract

The present invention relates to an AMI pillar transformer load measurement and a power supply probe. The AMI pillar transformer load measurement and a power supply probe comprises: a sensor part provides a means fluidly coupled to an electric wire mounted on a hole of a body and provides a waterproof member for waterproofing a hole in a sheath covering the electric wire when applying electric currents in consideration of the thickness of the electric wire which a transformer secondary low pressure drop wire providing power to a consumer; and a connector part in which a cable connecting to an external data central unit (DCU) for transmitting current or voltage values measured in the sensor part and the sensor part can be detached.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AMI pillar transformer load measurement and power supply probe,

The present invention relates to an AMI pillar transformer load measurement and a power supply probe, and more particularly, to an AMI pillar transformer load measurement and power supply probe, in consideration of the thickness of an electric wire, which is a low pressure reduction line of a secondary side of a transformer, And a waterproof member for waterproofing the open portion of the cover which encloses the electric wire when energized; And a cable connected to an external data concentrator (DCU) for transmitting the measured current or voltage value from the sensor unit and a connector unit for allowing the sensor unit to be detached from the sensor unit, It improves the durability of the equipment and prevents CT / PT sensor from being loosened due to vibration after fastening by firmly fixing the CT / PT sensor to wires of various thicknesses. In addition to preventing electric accidents, The present invention relates to an AMI pillar transformer load measurement and power supply probe capable of efficiently replacing parts and performing maintenance work.

The power line method is a method using power line communication (PLC), in which a power company uses a power line used to supply electricity to a home, a factory, or an office as a signal transmission path.

The power line communication uses a commercial AC signal as a transmission medium and communicates data on a power line. Since the sine wave of 60 Hz, which is commercial AC power, and the communication signal (for example, several tens of KHz) are multiplexed and transmitted at the same time, Wherever power is available, communication is possible.

However, currently, a power line communication method is located near a transformer in order to add a communication signal to a power line or to extract a communication signal from a power line.

However, the conventional probes have the following problems.

First, in the conventional probe, the CT / PT sensor unit and the cable are integrally formed, and the cost is increased because the cable must be completely replaced when the sensor unit is defective or damaged.

Second, the conventional probe is manufactured in a fixed size of a single size, and is secured to the power line only by the probe pin when fastened to the power line of various sizes on the site. Thereby causing a power failure.

Third, since the conventional probe has a structure in which power is supplied to the probe pin after fastening, if there is leakage around the probe pin, there is no proper waterproofing function, and there is a fear that an exposed probe pin may cause an electric shock accident There was a problem.

Fourth, in the prior art, since the fastening structure using the cicada hook latch and the hinge is used in the upper and lower bracket fastening, when the external exposure is performed for a long time, the cicada hook latch and the hinge portion are easily deteriorated due to aging, .

Korean Patent Publication No. 10-2015-0098186

SUMMARY OF THE INVENTION It is an object of the present invention to provide a means for fluidically fastening the electric wire seated in a hole of a body in consideration of the thickness of the electric wire, which is a low pressure reduction line on the secondary side of a transformer, A sensor unit for providing a waterproof member for waterproofing the open portion of the cloth surrounding the electric wire; And a cable connected to an external data concentrator (DCU) for transmitting the measured current or voltage value from the sensor unit and a connector unit for allowing the sensor unit to be detached from the sensor unit, It improves the durability of the equipment and prevents CT / PT sensor from being loosened due to vibration after fastening by firmly fixing the CT / PT sensor to wires of various thicknesses. In addition to preventing electric accidents, And to provide an AMI pillar transformer load measurement and power supply probe that can replace replacement parts and maintenance work efficiently.

According to an aspect of the present invention, there is provided an AMI pillar transformer load measuring and power supply probe, which measures the thickness of a wire, which is a low-voltage drop line on a secondary side of a transformer that supplies power to a customer, A sensor unit for providing a waterproofing member for waterproofing the open portion of the cover surrounding the electric wire when energized; And a cable connected to an external data concentrator (DCU) for transmitting the current or voltage value measured by the sensor unit, and a connector unit for allowing the sensor unit to be detached from the sensor unit. have.

The present invention improves the durability of the equipment by the waterproof structure of the electromagnetism part and prevents the accident by preventing the screws from being loosened by the vibration after the fastening because the CT / PT sensor is firmly fixed to the wires of various thicknesses. In the case of failure, only the defective part can be replaced, so that there is a technical effect that the replacement cost and the maintenance work can be efficiently performed.

In addition, since the present invention is changed to a bolt fastening structure using the first upper bolt and the second upper bolt in fastening the upper and lower brackets, it is possible to tighten the upper and lower cores inside the upper and lower cores, In addition, there is a technical effect of preventing oxidation of the upper and lower cores by preventing moisture from penetrating into the upper and lower bracket contact portions.

1A schematically shows an overall configuration of an AMI pillar transformer load measurement and power supply probe according to the present invention.
1B shows an exploded view of an AMI pillar transformer load measurement and power supply probe according to the present invention.
1C is a view for explaining the AMI pillar transformer load measurement and power supply probe installation process according to the present invention.
FIG. 2A shows a detailed configuration of a sensor unit according to the present invention.
FIG. 2B shows a connection state between a conductive needle and a cable according to the present invention.
2C shows a detailed structure of a connector according to the present invention.
3A shows a main structure of a flow clamp according to the present invention.
FIG. 3B shows the structure of the lower bracket according to the present invention before the energizing needle is brought into close contact with the electric wire.
3C shows a state after the energizing needle is brought into close contact with the electric wire in the structure of the lower bracket according to the present invention.
FIG. 3D is an enlarged view of the structure of the conductive needle according to the present invention.
4A shows the relationship between the first flow spacing and the first flow spacing according to tightening of the tightening bolts according to the first wire diameter in the structure of the flow clamp according to the present invention.
FIG. 4B shows the relationship between the second flow spacing according to tightening of the tightening bolts according to the second wire diameter in the structure of the flow clamp according to the present invention.
4C shows the relationship between the third flow gap and the tightening of the tightening bolt according to the third wire diameter in the structure of the flow clamp according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1A schematically shows an overall configuration of an AMI pillar transformer load measurement and power supply probe according to the present invention.

1A, an AMI pillar transformer load measurement and power supply probe 100A according to the present invention includes a sensor unit 100, a connector unit 200, and a cable 300.

The sensor unit 100 is a head portion in which a core and a coil are wound and molded to enable current / voltage sensing through a CT sensor / PT sensor. In this case, the current flowing through the power line is a current value Current cable to an external data concentrator (DCU), and the voltage is transferred to the external data concentrator (DCU) via a voltage cable through the PT sensor's conductive needle, 2b.

The connector portion 200 provides a connection structure that allows the sensor portion 100 and the cable 300 to be detached from each other, and a detailed description thereof will be given later with reference to FIG. 2C.

The cable 300 is connected to an external data concentrator (DCU), typically a cable of 4 m to 6 m is used for the connection.

1B shows an exploded view of an AMI pillar transformer load measurement and power supply probe according to the present invention.

Referring to FIG. 1B, the AMI pillar transformer load measuring and power supply probe 100A according to the present invention includes a first upper bolt 1a, a second upper bolt 1b, an upper cover 2, an upper core 3, A voltage pin fixing plate 8, a voltage pin 9, a voltage pin waterproofing member 11, a tightening guide (not shown) 12, a tightening bolt 13, a lower core 14, a first lower bushing 15a, a second lower bushing 15b, a first connecting member 16a and a second connecting member 16b. do.

The first upper bolt 1a, the second upper bolt 1b, the upper cover 2, the upper core 3, the upper cover 4 and the waterproof rubber 5, In order from top to bottom.

The voltage cover 7, the voltage pin fixing plate 8 and the voltage pin 9 are assembled in this order from the left to the right toward the body bushing 6.

The voltage pin waterproofing member 11, the tight contact guide 12 and the tightening bolt 13 are assembled in this order from the right to the left toward the body bushing 6.

The lower core 14, the first lower bushing 15a, the second lower bushing 15b, the first linking member 16a and the second linking member 16b are arranged in order from below to above the body bushing 6, Direction.

1C is a view for explaining the AMI pillar transformer load measurement and power supply probe installation process according to the present invention.

1C, the first upper bolt 1a and the second upper bolt 1b are connected to both ends of the upper bracket 110a. In this case, the first upper bolt 1a is disengaged from the upper bracket 110a, But the second upper bolt 1b has a structure that does not completely fall out from the lower bracket 110b. (See FIG. 2A)

First, the first upper bolt 1a and the second upper bolt 1b are loosened, and the upper bracket 110a is slightly lifted up and turned by 90 degrees so that the upper bracket 110a and the lower bracket 110b are rotated. The first upper bolt 1a is returned to its original position and the first upper bolt 1a is fastened to the lower bracket 110b so that the upper bracket 110a and the lower bracket 110b The brackets 110b may be fastened in the same way. (See FIG. 2A)

As described above, the present invention is changed to a bolt fastening structure using the first upper bolt (1a) and the second upper bolt (1b) in a fastening structure using a horn hinge and a cicada ring hitch, Accordingly, when the upper and lower brackets 110a and 110b are fastened, the upper and lower cores 3 and 14 can be fastened to each other and the accuracy can be improved. (See FIG. 1B)

The upper bracket 110a completely encloses the lower bracket 110b. The waterproof rubber gasket 5 is inserted into the fitting portion to completely prevent moisture from penetrating into the gap between the upper and lower brackets 110a and 110b And the inner cores 3 and 14 are prevented from being oxidized, thereby improving durability. (See FIG. 1B)

FIG. 2A shows a detailed configuration of a sensor unit according to the present invention.

2A, the sensor unit 100 according to the present invention includes an upper bracket 110a, a lower bracket 110b, a locking member 110c, and a flow clamp 120. [

The upper bracket 110a is a part for opening and closing and opens or closes the lower bracket 110b through a bolt fastening structure using the first upper bolt 1a and the second upper bolt 1b (close).

In addition, a latching protrusion is formed at one end of the upper bracket 110a, a hinge is formed at the opposite end of the upper bracket 110a, and a latching switch is formed at one end of the lower bracket 110b, The upper bracket 110a can be rotated in a clockwise direction by opening or closing the switch.

Meanwhile, a hole (h30) is formed at the center of the lower bracket 110b, and a wire, which is a low-pressure cut line of a secondary side of the transformer, is inserted. Will be described later with reference to Figs. 4A to 4C. Fig.

First, the upper bracket 110a is opened to place the wire in the hole of the lower bracket 110b. Next, the upper bracket 110a is closed, And finally the conductive needle 111 is positioned at the central portion of the wire, and then the flow clamp 120 is tightly fixed to the electric wire.

FIG. 2B shows a connection state between a conductive needle and a cable according to the present invention.

Referring to FIG. 2B, the conductive needle 111 according to the present invention has a structure in which the cable 310 and the connection wire 40 are mutually connected to each other, so that the current / To a data concentrator (DCU, not shown).

2C shows a detailed structure of a connector according to the present invention.

Referring to FIG. 2C, the connector unit 200 according to the present invention provides a structure for being detached through the first connecting member 16a and the second connecting member 16b.

That is, the first connection member 16a is attached to one side of the sensor unit 100, the second connection member 16b is attached to one side of the cable 300, The member 16a has a nut structure and the second connection member 16b has a bolt structure so that the sensor unit 100 and the cable 300 can be attached to or detached from each other through the bolt nut fastening.

As a result, since the sensor unit 100 and the cable 300 are detachably mountable, it is possible to replace only defective parts in the case of defective parts, It provides technical advantages that can be achieved.

This is in contrast to the additional cost incurred by replacing the entire product when some of the products are defective and the inefficiency of the maintenance work when the former sensor unit and the cable are integrally formed.

3A shows a main structure of a flow clamp according to the present invention.

Referring to FIG. 3A, the flow clamp 120 according to the present invention includes a tightening bolt B10, a close contact guide B20, and a spring washer K10.

The tightening bolt B10 is tightened or loosened according to the thickness of the wire 30 to be fastened, so that the moving distance of the clamp, that is, the flow interval L, can be adjusted.

The close contact guide B20 is a part for preventing the wire 30 from coming off by supporting the tightening bolt B10 so as not to be pushed when the tightening bolt B10 is tightened or loosened according to the thickness of the wire 30, Shaped plate can be used.

The spring washer K10 is a spring that is wound around the body of the tightening bolt B10 to increase the tightness of the bolt and the nut (the concave portion of the 'B') of the tight guide B20 using tension, It can prevent the loosening of the bolt due to vibration and fluctuation of power line.

FIG. 3B is a view showing a state before the energizing needle is brought into close contact with the electric wire, and FIG. 3C is a view showing a state after the energizing needle is brought into close contact with the electric wire, in the structure of the lower bracket according to the present invention, And FIG. 3D is an enlarged view of the structure of the conductive needle according to the present invention.

3B and 3C, a lower bracket 110b according to the present invention includes a housing set H10, a flow clamp 120, and a wire 30. [

The housing set H10 includes a housing 10, an energizing needle 11 and a waterproofing member 20 in which case, taking into account the depth of the energizing needle per square (e.g., 60 to 150 squares) 3d) It is desirable to make parts of the electromagnet.

In this case, a waterproofing member 20 of a predetermined size is attached to the inside of the housing 10 and the cover 30 of the electric wire 30 is pierced by pressing the conductive needle 11 toward the center of the waterproofing member 20 ), The waterproofing member 20 is shrunk by a certain amount, so that the open portion C20 of the cover is naturally waterproofed.

In order to achieve this, the waterproofing member 20 may be made of, for example, a waterproof elastic material such as urethane in a rectangular shape in a soft plastic.

4A shows the relationship between the first flow spacing and the first flow spacing according to tightening of the tightening bolts according to the first wire diameter in the structure of the flow clamp according to the present invention.

Referring to FIG. 4A, the flow clamp 120 according to the present invention includes a tightening bolt B10 and a tight guide B20.

In this case, the tightening bolt B10 has a first flow spacing L1 in accordance with the first wire diameter d1 of the first wire 30a. In this case, when the head portion is tightened by using a tool, Is preferably used.

The scale display unit S10 is provided at the lower end of the body of the flow clamp 120 so that the proper position of the wire 30 is displayed on the scale according to the thickness of the wire 30 such as the first wire diameter of the first wire 30a d1), it is preferable that the operator can facilitate the installation of the probe.

Here, the first flow interval L1 is set such that when the thickness of the first electric wire 30a is given as the first electric wire diameter d1, one end of the first electric wire 30a comes into contact with the end portion of the close bolt B10 The distance between the fastening bolts B10 and the fastening bolts B10 is the same as that of the fastening bolts B10.

FIG. 4B shows the relationship between the second flow spacing according to tightening of the tightening bolts according to the second wire diameter in the structure of the flow clamp according to the present invention.

Referring to FIG. 4B, the flow clamp 120 according to the present invention includes a tightening bolt B10 and a tight guide B20.

In this case, the tightening bolt B10 has a second flow interval L2 in accordance with the second wire diameter d2 of the second wire 30b. In this case, a hexagon bolt Is preferably used.

The scale display unit S10 is provided at the lower end of the body of the flow clamp 120 and the appropriate position of the wire 30 is displayed on the scale according to the thickness of the wire 30 such as the second wire diameter of the second wire 30b d2), it is desirable that the operator can facilitate the installation of the probe.

Here, the second flow interval L2 is set such that when the thickness of the second electric wire 30b is given as the second electric wire diameter d2, one end of the second electric wire 30b comes into contact with the end portion of the close bolt B10 The distance between the fastening bolts B10 and the fastening bolts B10 is the same as that of the fastening bolts B10.

4C shows the relationship between the third flow gap and the tightening of the tightening bolt according to the third wire diameter in the structure of the flow clamp according to the present invention.

Referring to FIG. 4C, the flow clamp 120 according to the present invention includes a tightening bolt B10 and a tight guide B20.

In this case, the tightening bolt B10 has the third flow interval L3 according to the third wire diameter d3 of the third wire 30c. In this case, the hexagon bolt Is preferably used.

The scale display unit S10 is provided at the lower end of the body of the flow clamp 120 to display the proper position of the wire 30 on the scale by the thickness of the wire 30 such as the third wire diameter of the third wire 30c d3), it is desirable that the operator can facilitate the installation of the probe.

Here, the third flow interval L3 is such that when the thickness of the third wire 30c is given by the third wire diameter d3, the end portion of the tightening bolt B10 and the one side of the third wire 30c are in contact with each other The distance between the fastening bolts B10 and the fastening bolts B10 is the same as that of the fastening bolts B10.

4A to 4C, the relation between the flow spacing and the flow spacing according to the wire thickness is summarized below.

 If the first wire diameter d1, the second wire diameter d2, the third wire diameter d3, the first flow spacing L1> the second flow spacing L2> the third flow spacing L3 (In inverse proportion).

That is, the greater the thickness of the wire, the smaller the spacing of the flow, because the greater the thickness of the wire, the shorter the length of contact with the end of the tightening bolt.

Thus, the present invention provides a technical advantage that the ease of installation and economical efficiency can be improved by easily adjusting the flow interval with reference to the scale indicated by the thickness of the wire without changing the structure of the flow clamp.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention.

100:
100a: upper bracket
100b: lower bracket
120: floating clamp
200:
300: Cable

Claims (8)

Provided is a means for fluidly fastening the electric wire seated in the hole of the body in consideration of the thickness of the electric wire, which is the secondary pressure lowering line of the secondary side of the transformer for supplying electric power to the consumer, and waterproofing the open portion of the covering, A sensor unit for providing a waterproof member for the waterproof member; And
A cable connected to an external data concentrator (DCU) for transmitting the measured current or voltage value from the sensor unit, and a connector unit for allowing the sensor unit to be detached from the sensor unit,
The sensor unit includes:
An upper bracket for opening or closing the wire to perform an operation for seating the wire in the hole; And
And a lower bracket disposed at a lower end corresponding to the upper bracket and fixing the electric wire through the floating clamp, taking the thickness of the electric wire into account, and performing a probe operation using the waterproof member. AMI pillar transformer load measurement and power supply probe. delete [2] The apparatus of claim 1,
An energizing needle for drilling the sheath enclosing said wire for energizing; And
And a waterproof member attached to an end portion of the conductive needle so that the conductive needle is shrunk by a punching force when the cover surrounding the electric wire is pierced so that the open portion of the cloth is waterproofed AMI pillar transformer load measurement and power supply probe. The waterproofing structure according to claim 3,
Wherein the square-shaped urethane is used. 2. The apparatus of claim 1,
A tightening bolt for tightening or loosening a screw to fix or separate the electric wire so as to have a flow interval corresponding to the thickness of the electric wire; And
And an adhesion guide for supporting the tightening bolts so as not to be pushed during the operation of tightening or loosening, thereby preventing separation from the electric wire. 6. The method of claim 5,
And the smaller the thickness of the electric wire, the smaller the electric wire thickness becomes. The connector according to claim 5,
And a spring washer for increasing the tightness by tension by winding a spring on the body to prevent the bolt from loosening due to vibration and shaking of the power line according to the outdoor circumferential circumstance. The AMI pillar transformer load measurement and power supply Probes. 6. The method of claim 5,
And a scale display unit is provided on the lower end of the flow clamp body to indicate a proper tightening position by a scale on the basis of the thickness of the electric wire.

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