KR100615721B1 - Receiving board for very high voltage - Google Patents

Abstract

The present invention relates to a high-voltage power panel, in particular made of a rectangular shape inside, a plurality of frames in which each device is fixed therein is installed vertically and horizontally, the door and the operation panel on both sides in the width direction An enclosure installed; Input cable head (CH1), load switch (LBS), transformer for transformer (MOF), transformer for transformer (PT), vacuum breaker (VCB), current transformer for instrument (CT), output cable head ( The input cable head (CH1) and the load of the high voltage switchgear, wherein CH2) and the arrester LA are fixedly installed in the enclosure by the frame in the forward direction of the circuit system by a plurality of busbars. The switch LBS is installed so as to be adjacent to each other at the upper end of its inner side by a frame in the enclosure, and the input cable head CH1 is fixed vertically so that the input side is located at the lower end in the enclosure, A cable leading into the building is connected, and a first booth bar having a depression shape is horizontally connected to an output side thereof, and the load switch LBS is installed such that an input side and an output side are positioned on an upper surface thereof. The first booth bar is connected, and is bent downward in multiple stages on the input side thereof, characterized in that the second booth bar having an inclined surface is vertically connected.

According to the present invention as described above, the load switch (LBS), instrument transformer (MOF), instrument current transformer (CT), instrument transformer (PT), vacuum circuit breaker (VCB) of the special high-voltage power panel The system was installed in a single enclosure in the manner of dividing into two or three planes of the device, and the device was installed in the forward direction of the circuit system, thus simplifying the conventional complicated wiring path, and thus occupying a large amount of space according to the separation distance of the high-voltage wiring. Since all the space is reduced compared to the conventional method, it is possible to reduce the height of the enclosure and the side space.

Extra High Voltage, Power Board, Enclosure, Height, Compact, Electrical, Forward, Busbar

Description

Extra high voltage power board {Receiving board for very high voltage}

1 is a disconnection diagram showing a system of a general substation facility,

Figure 2 is a device layout showing the configuration of the extra-high voltage power panel according to the present invention,

Figure 3 is a perspective view showing the configuration of the extra-high pressure power panel according to the invention.

<Explanation of symbols on main parts of the drawings>

101: cable 110: enclosure

111: frame 113: door

115: operation panel 120 to 180: first to seven booth bar

190: pedestal 190: insulator

CH1, CH2: I / O cable head CT: Current transformer for instrument

LBS: Load Breaker MOF: Instrument Transformer

PT: Instrument Transformer

The present invention relates to an extra high voltage power panel, and in particular, by installing internal power devices of an extra high voltage plate in a forward flow of a power system in a single enclosure to directly connect between devices by a busbar to lower the height of the enclosure. It relates to an extra high voltage power panel.

In general, the power supply and distribution facility consists of a special high pressure plate (high pressure plate), a transformer base, a transformer plate, and a low pressure plate for power supply and demand meters.They are manufactured separately and installed on the site. It is well known that cables are connected to each other through connection work between switchboards.

1 is a disconnection diagram showing a system of a general water distribution facility.

As shown, in general, the switchgear 1 is divided into a high voltage plate (or high voltage plate) 10, a transformer plate 20 and a low platen 30 according to the power supply order and the voltage type of the power system.

The extra high pressure plate 10 receives electricity of a special high pressure supplied from the outside, the transformer panel 20 converts the electricity of a special high pressure to a voltage suitable for the load of the consumer, the low plate 30 is a low pressure It performs the function of sending electricity to multiple loads.

As shown in Figure 1, the special high pressure plate 10 is a high-pressure power panel (LBS panel: 11), the instrument base (MOF panel: 12), the transformer transformer base (PT panel: 13), special height It consists of a number of power boards, namely enclosures (VCB board 14).

On the other hand, the special high-voltage transformer panel 11 is installed in the enclosure with a load breaker (LBS) and an arrester (LA), the instrument degeneration base (12) inside the instrument transformer (MOF) and power fuse (PF) ) Is installed. And the instrument transformer panel (13) is installed in the interior of the instrument transformer PT (PT), the special break-off base (VCB) 14 is a vacuum circuit breaker (VCB) and instrument current transformer (CT) and the inside of the enclosure; Surge absorbers SA are respectively installed.

Such a conventional high voltage switchgear has a cable head (not shown) connected to a cable head (not shown) inside a first enclosure (special high pressure switchgear), and a cable bar, a load switch (LBS), and an arrester (LA) in a busbar (shown). After the connection, the busbar is connected vertically upwards, and the busbars are horizontally connected to the enclosure located on the side, and then connected vertically again, and the instrument transformer of the second enclosure (modification base for instrument) (MOF) ) And the busbar to the power fuse (PF). It is also connected in the same way from the second enclosure to the third enclosure and from the third to the fourth enclosure. At this time, the busbar is fixed by the insulator of a predetermined length or more to maintain a constant insulation distance with the enclosure.

Thus, the conventional indoor and outdoor 22.9 KV extra-high voltage power panel has a load switch (LBS), an arrester (LA), an instrument transformer (MOF), an electric power fuse (PF), and an instrument transformer (PT). ), The vacuum breaker (VCB), the current transformer (CT) and the surge absorber (SA) are separated into separate ones, and when viewed from the front, three to four enclosures are formed in one set, and the height is more than 2.5 meters. As a result, it was a large structure of about 5.4 meters in length and had to be installed in the basement or the basement where the height of the building was not allowed.

In addition, in the switchgear, the extra high voltage switchgear, the extra high voltage switchgear, the transformer panel, and the low voltage switchgear are arranged in one system, so that the appearance of the entire switchgear does not coincide with each other. This is accompanied by difficulties due to high and low imbalances.

The present invention is to solve the above problems, load breaker (LBS), instrument transformer (MOF), current transformer (CT), instrument transformer (PT), vacuum The circuit breaker (VCB) is divided into two or three planes in a conventional manner, and is mounted in a single enclosure to install the device in the forward direction of the circuit system, thereby simplifying the conventional complicated wiring path. It is an object of the present invention to provide a special high-voltage power panel for reducing the height of the enclosure, and also reduces the side space, since all the space is reduced than the conventional method that takes up a lot of space according to.

Features of the present invention for achieving the above object,

An enclosure having a rectangular shape inside and having a plurality of frames in which each device is fixed therein, vertically and horizontally, and having doors and operation panels provided on both sides in the width direction; Input cable head (CH1), load switch (LBS), transformer for transformer (MOF), transformer for transformer (PT), vacuum breaker (VCB), current transformer for instrument (CT), output cable head ( The input cable head (CH1) and the load of the high voltage switchgear, wherein CH2) and the arrester LA are fixedly installed in the enclosure by the frame in the forward direction of the circuit system by a plurality of busbars. The switch LBS is installed so as to be adjacent to each other at the upper end of its inner side by a frame in the enclosure, and the input cable head CH1 is fixed vertically so that the input side is located at the lower end in the enclosure, A cable leading into the building is connected, and a first booth bar having a depression shape is horizontally connected to an output side thereof, and the load switch LBS is installed such that an input side and an output side are positioned on an upper surface thereof. The first booth bar is connected, and is bent downward in multiple stages on the input side thereof, characterized in that the second booth bar having an inclined surface is vertically connected.

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Here, the instrument transformer (MOF), the instrument transformer (PT), and the vacuum circuit breaker (VCB) are spaced apart by a pedestal at a predetermined height on the bottom in the enclosure, respectively, are sequentially spaced apart from each other, The instrument transformer (MOF) and the instrument transformer (PT) are installed at the lower end of the load switch (LBS), the instrument transformer (MOF) is installed so that the input side and the output side is located on the upper surface, the input side The second booth bar is connected, one end is bent downward while being horizontal to the output side, the third booth bar having an inclined surface is connected horizontally, the instrument transformer PT is installed so that the input side is located on the upper surface, An input side is connected to a fourth bus bar vertically branched from the bottom of the third bus bar, and the vacuum circuit breaker (VCB) is installed such that the input side and the output side correspond to the side of the instrument transformer PT. A fifth bus bar having an inclined surface is vertically connected to one end of the third bus bar on an input side thereof, and upwardly bent in a digital form on the output side thereof.

Here, the instrument current transformer CT and the output cable head CH2 are installed at the upper end of the vacuum circuit breaker VBC by a frame in the enclosure, and the output cable head CH2 is input in the enclosure. It is vertically fixed to be located at the lower end, the instrument current transformer CT is connected to the fifth booth bar on its input side, and formed horizontally on its output side, the sixth busbar bent one end is horizontally connected The output cable head CH2 has the sixth busbar connected to its input side, and a connection busbar connected to the other enclosure on its output side is connected vertically.

Here, the first to fourth busbars and the sixth busbars are fixed by insulators to maintain an insulation distance within the enclosure.

Here, the arrester LA is installed vertically at the side of the instrument transformer MOF at the input side and the output side is spaced apart from the bottom surface of the enclosure, the input side of which is the instrument transformer MOF. ) Is located higher than the input side, and is connected to the input side of the instrument transformer MOF by a seventh busbar.

Here, the first to seventh bus bar and the connection busbar maintains the insulation distance between the enclosure and the in-phase 220cm or more, 250cm or more between the phases.

Hereinafter, with reference to the accompanying drawings, the configuration of the extra-high pressure power panel according to the present invention will be described in detail.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

Figure 2 is a device layout showing the configuration of the extra-high voltage power panel according to the present invention, Figure 3 is a perspective view showing the configuration of the enclosure of the extra-high pressure power panel according to the present invention.

2 and 3, the high-voltage power panel 100 according to the present invention, the enclosure 110, the load switch (LBS), the transformer transformer (MOF), the instrument transformer (PT) And a vacuum circuit breaker (VCB), a current transformer CT for the instrument, an input cable head CH1, an output cable head CH2, an arrester LA, and first to seventh boot bars 120 to 180. .

First, the enclosure 110 is made of an empty rectangular shape, a plurality of frames 111 to which each device is fixed therein are installed vertically and horizontally, and the door 113 and the operation panel on both sides in the width direction. 115) is installed. Here, the enclosure 110 may be further provided with a repair door (not shown) on both sides thereof. Here, the enclosure 110 is preferably made of a structure that can be assembled by dividing the wide enclosure into two.

Then, the input cable head CH1, the load switch LBS, the instrument transformer MOF, the instrument transformer PT, the vacuum breaker VCC, the instrument current transformer CT and the output cable head The CH2 is fixedly installed in the enclosure 110 by the frame 111 in the forward direction of the circuit system by the first to seventh busbars 120 to 180.

In addition, the input cable head CH1 and the load switch LBS are installed to be adjacent to each other at an upper end of one of their inner sides by the frame 111 in the enclosure 110, and the input cable head CH1 is located within the enclosure 110. The input side is fixed vertically so as to be located at the bottom, the cable 101 is introduced into the building on the input side, that is, the KEPCO line is connected, the first side of the booth bar 120 in the form of a digital device on the output side is connected vertically, Load switch LBS is installed so that the input side and the output side is located on the upper surface, the first bus bar 120 is connected to the input side, the input side is bent in multiple stages down, the second boot bar 130 having an inclined surface ) Is connected vertically.

In addition, the instrument transformer (MOF), the instrument transformer (PT), and the vacuum circuit breaker (VCB) are spaced apart by a certain height by a pedestal (190) on the bottom of the enclosure (110), respectively, sequentially spaced apart from each other. The instrument transformer (MOF) and the instrument transformer (PT) are installed at the lower end of the load switch (LBS), and the instrument transformer (MOF) is installed so that the input side and the output side are located on the upper surface, Two booth bars 130 are connected, one end is bent downward while being horizontal to the output side, and the third booth bar 140 having an inclined surface is horizontally connected, and the instrument transformer PT has an input side at an upper surface thereof. The input side is connected to the fourth bus bar 150 vertically branched from the bottom of the third bus bar 140, and the vacuum circuit breaker VCB has an input side and an output side at the side of the instrument transformer PT. It is installed so as to correspond to, and connected to one end of the third bus bar 140 on the input side The fifth side of the booth bar 160 having an inclined surface on the output side thereof is vertically connected.

On the other hand, the current transformer CT and the output cable head CH2 for the instrument are installed on the upper end of the vacuum circuit breaker VCC by the frame 111 in the enclosure 110, and the output cable head CH2 is located in the enclosure 110. Is vertically fixed so that the input side is located at the bottom, and the current transformer CT for the instrument is connected to the fifth booth 160 at its input side and is formed horizontally at its output side, and the sixth booth with one end bent downward. Bar 170 is connected horizontally, the output cable head (CH2) is connected to the sixth bus bar 170 on the input side, the connection busbar (not shown) connected to the other enclosure (not shown) on the output side Is connected vertically.

In addition, the lightning arrester LA is installed vertically with the input side facing the upper side and the output side spaced apart from the bottom of the enclosure 110 at the side of the instrument transformer MOF, whose input side is more than the input side of the instrument transformer MOF. It is located high, and is connected to the input side of the instrument transformer (MOF) by the seventh bus bar (180).

The first to seventh bus bars 120 to 180 and the connection busbars maintain an insulation distance between phases of 220 cm or more and 250 cm or more between enclosures and in-phase, and the first to fourth bus bars 120 to 150 and The sixth boot bar 170 is fixed by the insulator 200 to maintain an insulation distance in the enclosure 110.

Hereinafter, with reference to the accompanying drawings the assembling process and action of the extra-high pressure power panel according to an embodiment of the present invention will be described in detail.

First, the enclosure 110 has a height of 2100 mm, a length of 3400 mm, and a shape of one box having a width of 1500 mm, and the door 113 and the operation panel 115 are installed on both sides in the width direction.

In other words, in the conventional high-voltage power panel, all devices can be mounted in a single enclosure compared to the method of mounting each device by dividing the enclosure into two or three sides, and conventionally, since the doors are installed on both sides in the longitudinal direction, While occupying a certain space before and after the city, the enclosure 110 of the present invention can eliminate unnecessary space before and after the installation because the door 113 is installed on both sides in the width direction. In addition, in the present invention, the reason that the device can be mounted in one enclosure 110 is that the complicated arrangement of the conventional wiring can be easily processed by arranging the device arrangement in the forward direction of the circuit system. All spaces are reduced compared to conventional methods that take up space, reducing the height of the enclosure and reducing the side space.

Then, to install each device in the enclosure 110, as shown in Figure 2, the input cable head (CH1) is fixed vertically so that the input side is located at the bottom of the upper right side in the figure. Then, the cable 101 which is led into the building is connected to the input side of the input cable head CH1, at which time an elbow type cable connector (not shown) is used to reduce the height by the connection of the input cable head CH1. .

On the other hand, the load switch LBS is fixed to the left side of the input cable head CH1 in the drawing so that the input side and the output side are located on the upper surface, and the output side of the input cable head CH1 and the input side of the load switch LBS are the first. Busbar 120 is connected. At this time, the load switch (LBS) is a product in which the power fuse (PF) is integrated.

In addition, the transformer MOF for the instrument is located on the upper side of the input side and the output side at the lower right side of the drawing, which is the lower end of the load switch LBS, and is spaced apart by a certain height from the bottom of the right side of the enclosure 110 by a pedestal 190. The second bus bar 130 is connected to an input side thereof and an output side of the load switch LBS.

In addition, the instrument transformer PT is spaced by a certain height on the right bottom surface of the enclosure 110 by a pedestal 190 so as to be located on the left side of the instrument transformer (MOF) while being the bottom of the load switch (LBS). Install it on this top surface.

In addition, the vacuum circuit breaker (VCB) is installed on the side of the instrument transformer (PT) spaced apart by a certain height on the left bottom surface of the enclosure 110 by a pedestal (190), the input side and the output side is the side of the instrument transformer (PT). Install in accordance with. Then, the third busbar 140 is connected to the output side of the instrument transformer MOF and the input side of the vacuum circuit breaker VCB, and branched vertically from the third busbar 140 to the input side of the instrument transformer PT. The fourth bus bar 150 is connected.

On the other hand, the upper end of the vacuum circuit breaker (VCB) is installed so that the instrument current transformer (CT) on the input side and the output side is located on the upper surface, and the fifth boot bar (O) on the input side of the output of the vacuum circuit breaker (VCB) and the instrument current transformer (CT) 160).

Then, the output cable head CH2 is vertically fixed at the upper left side in the figure so that the input side is located at the lower end, and the sixth bus bar 170 is provided at the output side of the instrument current transformer CT and the input side of the output cable head CH2. ), And a connection busbar connected to the other box is connected to the output side of the output cable head CH2.

In addition, the arrester LA is installed on the side of the instrument transformer MOF at the upper side and the output side is vertically spaced apart from the bottom of the enclosure 110, and the input side thereof is the input side of the instrument transformer MOF. It is located higher, and is connected by the seventh bus bar 180 and the input side of the instrument transformer (MOF). At this time, when the first to seventh bus bar 120 to 180 is three phases (R, S, T), the insulation distance between the phases is 250 cm or more between the phases, and the phase distance between the enclosure 110 and the phase is 220 cm or more. Keep it.

Therefore, the high-voltage power panel according to the present invention lowers the height of the enclosure to about 2100 mm, thereby widening the choice of the upper surface of the building so that it can be installed in the middle floor of the building in addition to the basement or outdoors, Since all of them can be applied in the same way, the power distribution system from the special high voltage distribution to the low voltage distribution is unified in the power distribution panel of small and medium sized buildings. The installation area can be reduced while lowering the height of the power distribution panel to facilitate installation.

In addition, the high-voltage power panel according to the present invention is low in height and is manufactured to be divided into two by the assembly frame, so that the transport and maintenance is smooth and the operator's rejection due to the high height of the enclosure can be reduced to environmentally friendly Intimacy can be achieved and manufacturing costs can be reduced by reducing the area of the enclosure.

According to the inventors of the present invention high pressure power panel is configured as described above, the load switch (LBS), instrument transformer (MOF), current transformer (CT), instrument transformer (PT) and In the way that the vacuum breaker (VCB) is divided into two or three planes in a conventional manner, the unit is mounted in a single enclosure and the device is disposed in the forward direction of the circuit system, thereby simplifying the conventional complicated wiring path. Since all spaces are reduced compared to the conventional method, which occupies a large amount of space according to the separation distance, it is possible to reduce the height of the enclosure and the side space.

As those skilled in the art would realize, the described embodiments may be modified in various ways, all without departing from the spirit or scope of the present invention. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the description, but rather includes all modifications, equivalents, and substitutes within the spirit and scope of the invention as defined by the appended claims. It must be understood.

Claims (7)

An enclosure having a rectangular shape inside and having a plurality of frames in which each device is fixed therein, vertically and horizontally, and having doors and operation panels provided on both sides in the width direction; Input cable head (CH1), load switch (LBS), transformer for transformer (MOF), transformer for transformer (PT), vacuum breaker (VCB), current transformer for instrument (CT), output cable head ( In the high voltage switchgear, CH2) and the arrester LA are fixedly installed in the enclosure by the frame in the forward direction of the circuit system by a plurality of busbars. The input cable head CH1 and the load switch LBS, It is installed to be adjacent to each other at the top of one of its inner side by a frame in the enclosure, The input cable head CH1 is The input side is fixed vertically in the enclosure so as to be located at the bottom, and the cable is connected to the input side into the building, the first side of the booth bar in the form of a digital device is connected horizontally to the output side, The load switch (LBS), It is installed so that the input side and the output side are located on the upper surface, and the first boot bar is connected to the input side, and the input side is bent downward in multiple stages, and the second boot bar having the inclined surface is vertically connected. Power board. delete The method of claim 1, The instrument transformer (MOF), instrument transformer (PT), and vacuum circuit breaker (VCB), The cabinet is spaced apart from each other by a pedestal in the bottom of the enclosure in order to be spaced apart from each other sequentially, the instrument transformer (MOF) and the instrument transformer (PT) is installed at the lower end of the load switch (LBS) , The instrument transformer (MOF), An input side and an output side are installed on the upper surface, the second bus bar is connected to the input side, one end is bent downward while being horizontal to the output side, and a third boot bar having an inclined surface is horizontally connected, The instrument transformer (PT), The input side is installed so that the input side is located on the upper surface, the input side is connected to the fourth boot bar vertically branched from the bottom of the third boot bar, The vacuum circuit breaker (VCB), A fifth booth having an input side and an output side corresponding to the side surface of the instrument transformer PT, connected to one end of the third booth bar on the input side thereof, bent upward in a digital form on the output side thereof, and having an inclined surface. An extra high voltage power panel, characterized in that the bar is connected vertically. The method of claim 3, wherein The instrument current transformer CT and the output cable head CH2, It is installed at the upper end of the vacuum circuit breaker (VCB) by a frame in the enclosure, the output cable head (CH2) is fixed vertically so that the input side is located at the lower end in the enclosure, The instrument current transformer (CT), The fifth booth bar is connected to an input side thereof, and the fifth booth bar is horizontally formed at an output side thereof. The output cable head CH2 is The sixth booth bar is connected to the input side thereof, and a connection busbar connected to the other enclosure is connected to the output side thereof. The method of claim 4, wherein The first to fourth booth bar and the sixth booth bar, An extra high voltage power panel, which is fixed by an insulator and maintains an insulation distance in the enclosure. The method of claim 1, The arrester LA is On the side of the instrument transformer (MOF) the input side is directed to the top, the output side is installed vertically spaced apart from the bottom surface of the enclosure, its input side is located higher than the input side of the instrument transformer (MOF), the instrument An extra high voltage power panel, characterized in that connected by the input side of the transformer (MOF) and the seventh bus bar. The method according to claim 4 or 6, The first to seventh booth bar and the connection busbar, 220 cm or more between the enclosure and the in-phase, the special high-voltage power panel, characterized in that to maintain the insulation distance between the phases more than 250 cm.

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