KR101445628B1 - High voltage high strength solid insulation epoxy wall through bushing and closed type distribution board - Google Patents

High voltage high strength solid insulation epoxy wall through bushing and closed type distribution board Download PDF

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Publication number
KR101445628B1
KR101445628B1 KR1020140053606A KR20140053606A KR101445628B1 KR 101445628 B1 KR101445628 B1 KR 101445628B1 KR 1020140053606 A KR1020140053606 A KR 1020140053606A KR 20140053606 A KR20140053606 A KR 20140053606A KR 101445628 B1 KR101445628 B1 KR 101445628B1
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KR
South Korea
Prior art keywords
voltage
bus bar
high voltage
shield
compartment
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KR1020140053606A
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Korean (ko)
Inventor
박문진
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대원계전주식회사
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/28—Capacitor type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/54—Insulators or insulating bodies characterised by their form having heating or cooling devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/56—Insulating bodies
    • H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
    • H01B17/583—Grommets; Bushings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/40—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes epoxy resins
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Patch Boards (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

A closed type distribution board having a high pressure and high strength solid insulation epoxy mold bushing includes: bus bar inlets provided at both ends of a body in a longitudinal direction so that a bus bar is inserted into the body; a protruding rim provided at an edge of the bus bar inlet; protruding insulating tubes, which are protected by the protruding rim, provided at both ends of the body in the longitudinal direction to emit heat generated in the body and to extend an insulation distance; a panel latch part provided at a center of the body in the longitudinal direction; a panel latch part insert nut molded to the panel latch part; a high voltage shield connector assembled to the bus bar; a high voltage shield liner molded to a center of a space inside the body so as to adhere to the high voltage shield connector when the bus bar assembled to the high voltage shield connector is introduced to the space of the body to fix the bus bar; an insert bolt fastened to the high voltage shield liner and automatically connected to a ground when fastened to the high voltage shield liner; a high voltage shield ground electrode net, which is a metal net molded to the center of the body, connected to the bus bar and the ground; a voltage detection sensor integrated into the body in a longitudinal direction of the body to detect a voltage divided from the bus bar by an impedance between the high voltage shield ground electrode net and the bus bar; and a protruding voltage detection terminal connected to the voltage detection sensor to transmit the voltage detected from the voltage detection sensor.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a high-voltage high-strength solid-insulated epoxy molded bushing and a closed-

The present invention relates to a solid insulated epoxy mold bushing and a closed switchboard having the same, and more particularly to a high-voltage, high-strength solid insulated epoxy-molded bushing used for a high voltage of 7.2 kV and a closed switchboard having the same. .

The bushing is placed at the end of the tube and is used to prevent the insulation of the wire from being hurt when pulling in and out of the wire.

On the other hand, an epoxy molded cylinder type fuse holder base of Patent Publication No. 10-0814682 is disclosed.

However, at a high voltage of about 750 [V] to 8,000 [V], problems such as generation of an arc and damage to peripheral devices are likely to occur due to a very high voltage.

In particular, it is not easy to detect whether the busbar in the bushing is energized in real time. It is not easy to connect the circuit to detect the energization of the busbar in the bushing.

In addition, the circuit configuration for connection with the ground circuit is also not easy. This causes a problem that a visual corona occurs too much.

Such a bushing does not disassemble or rejoin most once installed, so it is very difficult to check the energization and the risk is high.

In the meantime, such a bushing is widely used in the process of connecting various relays or relays within the switchgear, and forms a circular eddy current when the busbars in the bushing are energized. In the existing switchgear, a device for preventing the circular eddy current There is a problem that it is not.

In addition, the existing switchboard is often closed, and in this case, the voltage detection of the bushing provided inside the closed switchboard is even more difficult.

In addition, at high pressure, there is a problem that a large damage is applied to various devices around the bushing due to an arc or the like, thereby causing more damage. Various devices such as a feeder and a relay are arranged inside the switchgear, and all the other devices inside the switchgear can be useless due to arc or high voltage discharge of the bushing. This is because the existing enclosed switchboard is formed as a space inside.

10-0814682

It is an object of the present invention to provide a high pressure, high strength, solid insulated epoxy molded bushing.

Another object of the present invention is to provide a closed switchboard having a high-voltage high-strength solid-insulative epoxy-molded bushing.

The high-strength, high-strength solid-insulative epoxy-molded bushing according to the present invention is molded into a liquid casting mold using an epoxy resin to form a hollow body having a length of 175 mm, In a high-voltage solid epoxy bushing, a bus bar is inserted at both ends of the body in the longitudinal direction so that a corner of 25 mm in width and 115 mm in length is rounded A bus bar in-out gate formed in a rectangular shape; A protruding jaw formed at an edge of the bus bar inlet / outlet; And two protrusions, each of which is formed in a three-step rectangular shape having rounded corners at both end portions in the longitudinal direction of the body to be protected by the protruding jaw and emits heat generated from the body, Heat sink; A panel fastening part having a rectangular shape with sides of 149 mm and 225 mm in the center in the longitudinal direction of the body; Four panel clamping insert nuts formed by molding at four corners of the panel clamping portion; A high voltage shield connector (HV shield connector) assembled to the bus bar; A high pressure shield liner (HV) which is molded in the center of an inner hollow space of the body and is closely contacted with the high pressure shield connector when the bus bar with the high voltage shield connector is drawn into the hollow space of the body, shield liner); Four insert bolts fastened to the insert nut of the high-pressure shield liner and configured to be automatically connected to the ground at the time of fastening; A high voltage shielded HV shield ground connected to the bus and ground of 7.2 [kV] as a metal network in the form of a ring molded in the center of the body; A voltage detector formed integrally with the body in the longitudinal direction of the body and detecting a voltage divided from the bus line of 7.2 [kV] by an impedance with the high-voltage shielded ground electrode network, ; And a voltage detection terminal (VD terminal) connected to the voltage detection sensor and protruding to the outside of the body to transmit a detection voltage of the voltage detection sensor to an external voltage sense indicator (VIC) .

Here, the voltage detection sensor divides the capacitance C2 between the bus bar detected by the enclosure wall FG and the voltage detection sensor by the sum of the capacitance C2, the capacitance C1 between the voltage detection sensor and the ground, And may be configured to detect a value multiplied by the busbar voltage.

A closed switchboard having a high-strength, high-strength solid-insulative epoxy-molded bushing according to another aspect of the present invention includes: an outer barrier for blocking an outer adjacent switchboard; A second compartment disposed on the upper front surface, a third compartment disposed on the upper rear surface, and a second compartment disposed on the upper rear surface, the first compartment being partitioned and shielded by metal partition walls provided on the inner side of the outer partition, 4 compartments.

In this case, the first compartment 102 is provided with a dedicated door, and a high-pressure, high-strength solid-insulated epoxy-molded bushing for introducing a bus of 7.2 [kV] into the external partition 101 is installed. As shown in FIG.

And the second compartment is equipped with a dedicated door and can be configured to receive a 7.2 kV circuit breaker, a primary power connection, a secondary power connection, and a meter transformer (CT) and feeder busbar bar .

The third compartment is equipped with a dedicated door and can be configured to receive a breaker of 7.2 [kV].

The fourth compartment is provided with a dedicated door and can be configured to receive the LV low-voltage control device.

Here, the high-pressure high-strength solid insulation epoxy-molded bushing is molded in a liquid casting mold using an epoxy resin to form a body having a length of 175 mm, an empty space formed inside the body, and a busbar A busbar in-out gate formed at each end of the body in the longitudinal direction so as to be inserted into the body, the busbar in-out gate having a shape of a rectangle having a rounded shape of 25 mm in width and 115 mm in length; A protruding jaw formed at an edge of the bus bar inlet / outlet; And two protrusions, each of which is formed in a three-step rectangular shape having rounded corners at both end portions in the longitudinal direction of the body to be protected by the protruding jaw and emits heat generated from the body, Heat sink; A panel fastening part having a rectangular shape with sides of 149 mm and 225 mm in the center in the longitudinal direction of the body; Four panel clamping insert nuts formed by molding at four corners of the panel clamping portion; A high voltage shield connector (HV shield connector) assembled to the bus bar; A high pressure shield liner (HV) which is molded in the center of an inner hollow space of the body and is closely contacted with the high pressure shield connector when the bus bar with the high voltage shield connector is drawn into the hollow space of the body, shield liner); Four insert bolts fastened to the insert nut of the high-pressure shield liner and configured to be automatically connected to the ground at the time of fastening; A high voltage shielded HV shield ground connected to the bus and ground of 7.2 [kV] as a metal network in the form of a ring molded in the center of the body; A voltage detector formed integrally with the body in the longitudinal direction of the body and detecting a voltage divided from the bus line of 7.2 [kV] by an impedance with the high-voltage shielded ground electrode network, ; And a voltage detection terminal (VD terminal) connected to the voltage detection sensor and protruding to the outside of the body to transmit a detection voltage of the voltage detection sensor to an external voltage detection indicator (VIC) Lt; / RTI >

The external wall is provided with an eddy current cutoff device for blocking the eddy current formed by the bus line of 7.2 [kV], and a voltage for displaying the detection voltage of the voltage detection sensor is formed on the outer surface of the exclusive door of the first compartment A voltage indicator controller (VIC) is preferably provided.

According to the above-described high-pressure, high-strength, solid-insulated epoxy-molded bushing of the present invention and a closed-type switchboard having the same, the bushings are formed by molding using high-quality epoxy to prevent damage or damage of parts due to arc discharge There is a perfect insulation effect.

Also, the bushing can be installed quickly and conveniently by using the insert nut of the panel fastening part.

Further, since the insulation length of the bushing is made longer by the protruding heat dissipation pipe, the stability is secured from the risk of arc or partial discharge.

In addition, even when the high-voltage shield liner is used to energize the bus line of 7.2 [kV], the high-voltage shielded battery electrode network is discharged to the ground circuit, thereby blocking visual corona.

Further, the four insert bolts are fastened to the insert nut of the high-voltage shield liner and connected to the ground circuit, so that the ground type bushing can be installed quickly.

Further, by forming the voltage detecting sensor in the inside of the bushing body, it is possible to protect an image and a single phase of a high-voltage bus line voltage of 7.2 [kV]. Further, the voltage of the capacitance distribution voltage lead line detected by the voltage detection sensor can be easily confirmed simply by connecting the voltage detection terminal molded in the bushing body. That is, the external connection can be made very quickly and quickly through the voltage detection terminal.

As described above, the high-pressure, high-strength solid insulation epoxy-molded bushing can be installed very easily and quickly, exhibits perfect insulation performance despite the high pressure, and can detect the voltage stably through the voltage- It is effective.

Meanwhile, the closed type switchboard having the high-voltage high-strength solid insulation epoxy-molded bushing has several compartments by the partition walls, so that it is possible to suppress the accident spread to peripheral devices and neighboring appliances when a fire is caused by an arc. Thus, stabilization of the power system can be achieved.

In addition, since various compartments are provided at the upper and lower ends by the internal partition depending on the application thereof, it is possible to realize a very compact space as well as a high space efficiency compared to the installation area.

Particularly, by applying an eddy current cutoff device to block the eddy currents generated around the busbars through the partition walls of a closed switchboard, it is possible to prevent the dielectric breakdown due to the heat generated by the circular eddy currents when the current flows in the direction of the busbars .

1A is a perspective view of a high pressure, high strength solid insulation epoxy molded bushing according to an embodiment of the invention.
1B is a physical side view of a high-pressure high-strength solid-insulative epoxy-molded bushing according to an embodiment of the present invention.
2 is a front view of a high pressure, high strength solid insulation epoxy molded bushing according to an embodiment of the present invention.
3 is a side view of a high pressure, high strength solid insulation epoxy molded bushing according to an embodiment of the present invention.
4 is a front view showing a state in which a high voltage shield connection connector according to an embodiment of the present invention is assembled to a bus bar.
FIG. 5 is a side view of a high-voltage high-strength solid-insulative epoxy molded bushing having an extended insulation distance by a protruding heat-radiating pipe according to an embodiment of the present invention.
6 is a conceptual diagram showing a principle of partial pressure of a voltage sensing function sensor according to an embodiment of the present invention.
7 is a conceptual diagram illustrating partial voltage application of a voltage sensing function sensor according to an embodiment of the present invention.
8 is an external front view, a side view, and an internal front view of a closed switchboard with a high-voltage, high-strength solid-insulated epoxy-molded bushing according to an embodiment of the present invention.
9 is a front view of an eddy current cutoff device according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail to the concrete inventive concept.

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing.

The terms first, second, A, B, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, .

On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

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

FIG. 1A is a perspective view of a high-strength, high-strength solid-insulative epoxy-molded bushing according to an embodiment of the present invention, FIG. 1B is a physical side view of a high- 3 is a side view of a high-pressure, high-strength solid-insulative epoxy-molded bushing according to an embodiment of the present invention, and FIG. 4 is a cross- FIG. 5 is a side view of a high-voltage high-strength solid-state epoxy epoxy molded bushing having an extended insulation distance by a protruding heat-radiating pipe according to an embodiment of the present invention.

1A through 5, a high-strength, high-strength, solid-state epoxy epoxy molded bushing according to an embodiment of the present invention includes a busbar in-out gate 1, a protruding jaw 2, 3, a panel fastening part 4, a panel fastening insert net 5, a high voltage shield connector 6, a high voltage shield liner 7, an insert bolt 7, an insert bolt 8, a high voltage shield ground 9, a voltage detector 10 and a voltage terminal 11 .

First, the high-strength, high-strength solid-insulative epoxy-molded bushing according to the present invention is configured to be molded in a liquid-phase molding process using an epoxy resin

At this time, the body is formed to have a length of 175 mm and an empty space is formed in the body to insert a busbar.

Hereinafter, the detailed configuration will be described.

The bus bar inlet / outlet 1 may be configured to have a shape of a rectangle with rounded corners of 25 mm in width and 115 mm in length at both ends in the longitudinal direction of the body so that a busbar (CU) .

The protruding jaws 2 may be configured to be formed at both ends of the bus bar inlet / outlet 1. The protruding jaw 2 is configured to protect the protruding heat dissipating tube 3.

The protruding heat dissipating cap 3 is protected by the protruding protuberances 2 and is configured to release heat generated in the body.

The protruding heat-dissipating cap 3 is formed in three stages in a rectangular shape having rounded corners at both end portions in the longitudinal direction of the body, and the protruding heat-dissipating cap 3 can be formed in two so that the insulation distances are extended by 96 mm on both sides.

The panel fastening part 4 may be configured to have a rectangular shape with rounded corners of 149 mm in width and 225 mm in length at the center in the longitudinal direction of the body.

The panel fastening part insert nut 5 may be configured to be molded at four corners of the panel fastening part 4. The panel nip portion insert nut 5 facilitates the installation of the bushing.

The high-voltage shield connection connector 6 may be configured to be assembled to a central portion of the bus bar CU.

The high-pressure shield liner 7 can be molded and molded at the center of the inner hollow space of the body.

The high voltage shield liner 7 is brought into close contact with the high voltage shield connecting connector 6 to fix the bus bar CU when the bus bar CU assembled with the high voltage shield connecting connector 6 is drawn into the hollow space of the body Lt; / RTI >

Four insert bolts 8 may be provided.

The insert bolt 8 is fastened to the insert nut of the high-pressure shield liner 7 and can be configured to be automatically connected to the ground at the time of fastening. Ground connection can be made very convenient.

The high-voltage shielded ground electrode network 9 may be configured to be connected to a bus line of 7.2 [kV] and a ground as a metal network in the form of a ring molded at the center of the body.

The voltage detection sensor 10 may be formed integrally with the body in the longitudinal direction of the body.

The voltage detection sensor 10 can be configured to detect a voltage divided from the bus line of 7.2 [kV] by impedance with the high voltage shielded ground electrode network 9. [ Here, the partial pressure can be distributed according to the law of voltage distribution.

The voltage detection terminal 11 is a structure for transmitting the detection voltage of the voltage detection sensor 10 to an external voltage detection indicator (VIC).

The voltage detecting terminal 11 may be connected to the voltage detecting sensor 10 so as to protrude from the outside of the body. Accordingly, the voltage detection display controller VIC is connected through the voltage detection terminal 11 to easily detect the voltage.

FIG. 6 is a conceptual diagram showing a principle of partial pressure of a voltage sensing function sensor according to an embodiment of the present invention, and FIG. 7 is a conceptual diagram illustrating partial voltage application of a voltage sensing function sensor according to an embodiment of the present invention.

6 and 7, a voltage Un is formed between the bus and the ground of the main circuit in the high-voltage shielded ground electrode network 9. A voltage Ud sensed by the voltage detection sensor 10 is detected by the voltage detection sensor 10 A capacitance C1 between the voltage sensing function sensor 10 and the ground is formed at the voltage detection terminal 11 and a capacitance between the bus line serving as a main circuit and the voltage detection sensor 10 is formed in the enclosure wall C2 is formed.

Accordingly, the voltage detection sensor 10 divides the capacitance C2 between the bus bar detected at the enclosure wall FG and the voltage detection sensor 10 by the sum of the capacitance C2 and the capacitance C1 between the voltage detection sensor 10 and the ground And may be configured to detect a value multiplied by the voltage of the posterior bus line. It follows the law of voltage distribution.

FIG. 8 is an external front view, a side view, and an internal front view of a closed type switchboard having a high-voltage high-strength solid-state epoxy epoxy molded bushing according to an embodiment of the present invention, Front view.

8 and 9, a closed switchboard having a high-pressure, high-strength solid-insulative epoxy-molded bushing according to an embodiment of the present invention includes an outer partition 101, a first compartment 102, a second compartment 103, A third compartment 104, and a fourth compartment 105. The third compartment 104,

Hereinafter, the detailed configuration will be described.

The external partition 101 is provided for interrupting the external adjacent switchboard and completely blocks the inside and the outside from the arc or partial discharge.

The first compartment 102 may have a dedicated door and be disposed at the lower front surface.

The first compartment 102 may be provided with a high-pressure, high-strength solid-insulated epoxy-molded bushing through which the busbars of 7.2 [kV] are led through the outer partition 101 and through the inside and the outside of the enclosed switchboard.

In addition, LA and GPT may be installed in the first compartment 102.

The second compartment 103 may have a dedicated door and be disposed on the upper front surface.

In the second compartment 102, a breaker of 7.2 [kV], a primary power connection, a secondary power connection and a transformer CT for a meter and a feeder busbar bar may be accommodated.

The third compartment 104 may have a dedicated door and be disposed at the upper rear side.

A breaker of 7.2 [kV] may be provided in the third compartment 104.

The fourth compartment 105 may be disposed on the upper rear surface.

The LV low-voltage control device may be provided in the fourth compartment 105.

The first to fourth compartments 102 to 105 may be configured to be partitioned and shielded by a metallic partition wall on which a high-pressure high-strength solid insulation epoxy-molded bushing is installed.

On the other hand, an eddy current cutoff device for blocking the circular eddy current formed by the bus line of 7.2 [kV] may be installed in the outer barrier 101.

The voltage detection display controller VIC for displaying the detection voltage of the voltage detection sensor 10 may be installed on the outer surface of the dedicated door of the first compartment 102. [

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 or scope of the invention as defined in the following claims There will be.

1: Busbar in-out gate
2: protrusion
3:
4:
5: Panel clamping insert nut (insert net)
6: High voltage shield connector (HV shield connector)
7: High pressure shield liner (HV shield liner)
8: Insert bolt
9: High voltage shield HV shield ground
10: Voltage detector (voltage detector)
11: Voltage detection terminal (VD terminal)
101: outer bulkhead
102: First compartment
103: second compartment
104: Third compartment
105: fourth compartment

Claims (5)

A high-voltage high-strength epoxy-resin-molded bushing having a body of 175 mm in length and formed with a hollow space in the body by molding in an epoxy molding process using an epoxy resin, In this case,
A busbar in-out gate is formed at each end of the body in the longitudinal direction so that a busbar (CU) can be inserted into the body, the bus bar in-out gate having a rectangular shape with a rounded corner of 25 mm and 115 mm, (One);
A protruding jaw (2) formed at the edge of the bus bar inlet / outlet;
Protected by the protruding jaws 2 and formed in three stages with rectangular rounded corners at both ends in the longitudinal direction of the body to emit heat generated from the body, the insulation distances are extended by 96 mm Two projecting heat dissipating tubes 3;
A panel fastening part 4 formed of a rectangle having a shape of rounded corners with a width of 149 mm and a length of 225 mm at the center in the longitudinal direction of the body;
Four panel clamping insert nuts (5) molded by molding at four corners of the panel clamping part (4);
A high voltage shield connector (HV shield connector) 6 assembled to the bus bar (CU);
When the bus bar (CU) in which the high voltage shield connection connector 6 is assembled is drawn into the internal hollow space of the body, the high voltage shield connection connector 6 is closely contacted with the high voltage shield connection connector 6 A high voltage shield liner 7 for fixing the bus bar CU;
Four insert bolts 8 that are fastened to the insert nuts of the high-pressure shield liner 7 and are configured to be automatically connected to the ground at the time of fastening;
A high voltage shielded HV shield ground 9 connected to a bus line of 7.2 [kV] and a ground, in the form of a ring formed by molding in the center of the body;
A voltage detecting sensor (not shown) which is integrally formed with the body in the longitudinal direction of the body and detects a voltage divided from the bus line of 7.2 [kV] by an impedance with the high voltage shield ground electrode network 9 voltage detector (10);
A voltage detection terminal 10 connected to the voltage detection sensor 10 and protruding outside the body 10 to transmit a detection voltage of the voltage detection sensor 10 to an external voltage detection indicator (VIC) (VD) terminal (11). The high-strength, high-strength, solid-insulative epoxy-molded bushing.
The voltage detection apparatus according to claim 1, wherein the voltage detection sensor (10)
The capacitance C2 between the bus bar detected by the enclosure wall FG and the voltage detection sensor 10 is divided by the sum of the capacitance C2 and the capacitance C1 between the voltage detection sensor 10 and the ground, Of the solid epoxy epoxy molded bushing.
delete In a closed switchboard,
An external partition 101 for interception with an external adjacent switchboard;
A first compartment 102, a second compartment 103, and a second compartment 103. The first compartment 102, the second compartment 103, and the second compartment 103 are located at the lower end of the partition wall. A third compartment 104 and a fourth compartment 105 disposed on the top rear,
The first compartment (102)
Pressure high-strength solid-insulated epoxy-molded bushing having a dedicated door and through which the bus bar of 7.2 [kV] is led through the inside and outside of the enclosed switchboard, GPT,
The second compartment (103)
A dedicated door is provided and accommodates a breaker of 7.2 [kV], a primary power connection, a secondary power connection, a transformer CT and a feeder busbar bar,
The third compartment (104)
A special door is provided, a breaker of 7.2 [kV] is accommodated,
The fourth compartment (105)
An exclusive door is provided, the LV low-pressure control device is accommodated,
The high-strength, high-strength solid-insulative epoxy-
An epoxy resin is molded into a liquid casting mold to form a body having a length of 175 mm and a hollow space is formed in the body,
A busbar in-out gate is formed at each end of the body in the longitudinal direction so that a busbar (CU) can be inserted into the body, the bus bar in-out gate having a rectangular shape with a rounded corner of 25 mm and 115 mm, (One);
A protruding jaw (2) formed at the edge of the bus bar inlet / outlet;
Protected by the protruding jaws 2 and formed in three stages with rectangular rounded corners at both ends in the longitudinal direction of the body to emit heat generated from the body, the insulation distances are extended by 96 mm Two projecting heat dissipating tubes 3;
A panel fastening part 4 formed of a rectangle having a shape of rounded corners with a width of 149 mm and a length of 225 mm at the center in the longitudinal direction of the body;
Four panel clamping insert nuts (5) molded by molding at four corners of the panel clamping part (4);
A high voltage shield connector (HV shield connector) 6 assembled to the bus bar (CU);
When the bus bar (CU) in which the high voltage shield connection connector 6 is assembled is drawn into the internal hollow space of the body, the high voltage shield connection connector 6 is closely contacted with the high voltage shield connection connector 6 A high voltage shield liner 7 for fixing the bus bar CU;
Four insert bolts 8 that are fastened to the insert nuts of the high-pressure shield liner 7 and are configured to be automatically connected to the ground at the time of fastening;
A high voltage shielded HV shield ground 9 connected to a bus line of 7.2 [kV] and a ground, in the form of a ring formed by molding in the center of the body;
A voltage detecting sensor (not shown) which is integrally formed with the body in the longitudinal direction of the body and detects a voltage divided from the bus line of 7.2 [kV] by an impedance with the high voltage shield ground electrode network 9 voltage detector (10);
A voltage detection terminal 10 connected to the voltage detection sensor 10 and protruding outside the body 10 to transmit a detection voltage of the voltage detection sensor 10 to an external voltage detection indicator (VIC) (VD) terminal (11).
5. The method of claim 4,
The external barrier 101 is provided with an eddy current cutoff device for blocking an eddy current formed by the bus line of 7.2 [kV]
Wherein a voltage indicator controller (VIC) is installed on an outer surface of a dedicated door of the first compartment (102) to display a detection voltage of the voltage detection sensor (10).
KR1020140053606A 2014-05-02 2014-05-02 High voltage high strength solid insulation epoxy wall through bushing and closed type distribution board KR101445628B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022025380A1 (en) * 2020-07-31 2022-02-03 엘에스일렉트릭 (주) Switchboard
CN116893315A (en) * 2023-09-07 2023-10-17 苏州英特模科技股份有限公司 Wall penetrating system of load dynamometer of semi-anechoic chamber and mounting method of wall penetrating system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100984509B1 (en) * 2010-05-06 2010-09-30 성화종합전기(주) A high voltage distributing board
KR101196704B1 (en) * 2012-09-11 2012-11-09 대원계전주식회사 Closed Compact Panel with Voltage Detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100984509B1 (en) * 2010-05-06 2010-09-30 성화종합전기(주) A high voltage distributing board
KR101196704B1 (en) * 2012-09-11 2012-11-09 대원계전주식회사 Closed Compact Panel with Voltage Detector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022025380A1 (en) * 2020-07-31 2022-02-03 엘에스일렉트릭 (주) Switchboard
US20230216280A1 (en) * 2020-07-31 2023-07-06 Ls Electric Co., Ltd. Switchboard
CN116893315A (en) * 2023-09-07 2023-10-17 苏州英特模科技股份有限公司 Wall penetrating system of load dynamometer of semi-anechoic chamber and mounting method of wall penetrating system
CN116893315B (en) * 2023-09-07 2023-12-12 苏州英特模科技股份有限公司 Wall penetrating system of load dynamometer of semi-anechoic chamber and mounting method of wall penetrating system

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