KR102624742B1 - Car Line Support Structure - Google Patents

Abstract

The present invention relates to a tram line support structure for subway power supply,
A bus disconnector room (11a1) that accommodates the insulating gas, a first transformer room (11a2) that communicates with the bus disconnector chamber (11a1) and accommodates the insulating gas, and a first transformer chamber (11a2) that communicates with the first transformer chamber (11a2) and accommodates the insulating gas. a circuit breaker chamber (11a3), a second transformer chamber (11a4) that communicates with the circuit breaker chamber (11a3) and accommodates insulating gas, and a line disconnector chamber (11a5) that communicates with the second transformer chamber (11a4) and accommodates insulating gas. ), a first partition plate 11b installed in the case 11a and dividing the bus disconnector chamber 11a1 and the first transformer chamber 11a2, and a first partition plate 11b installed in the case 11a. A second partition plate 11c is installed in the case 11a to partition the first transformer chamber 11a2 and the breaker chamber 11a3, and a second partition plate 11c is installed in the case 11a to partition the breaker chamber 11a3 from the second transformer chamber 11a4. A GIS main body (11) equipped with a three-partition plate (11d) and a fourth partition plate (11e) built into the case (11a) to partition the second deflector chamber (11a4) and the line disconnector chamber (11a5); A bus disconnector (12) installed in the bus disconnector room (11a1); A first current transformer (13) installed in the first current transformer room (11a2); A circuit breaker (14) installed in the circuit breaker room (11a3); A second transformer (15) installed in the second transformer room (11a4); A line disconnector (16) installed in the line disconnector room (11a5); A GIS (10) consisting of a bushing (17) installed in the line disconnector room (11a5) and protruding to the outside; A transformer (20) electrically connected to the GIS (10); In the tram line support structure for subway power supply, which includes a tram line support mechanism (30) that supports the tram line (TL) and supports a plurality of lead wires (21) drawn from the transformer (20),
The GIS (10) is,
A first check valve (CV1) installed on the first partition plate (11b) to allow insulating gas to flow only from the bus disconnector chamber (11a1) to the first transformer chamber (11a2);
A second check valve (CV2) installed on the second partition plate (11c) to allow insulating gas to flow from the circuit breaker chamber (11a3) only to the first transformer chamber (11a2);
A third check valve (CV3) installed on the third partition plate (11d) to allow insulating gas to flow only from the circuit breaker chamber (11a3) to the second transformer chamber (11a4);
A fourth check valve (CV4) installed on the fourth partition plate (11e) to allow insulating gas to flow only from the line disconnector chamber (11a5) to the second transformer chamber (11a2);
A first control valve (EV1) installed on the first partition plate (11b) to control the flow of insulating gas from the first transformer chamber (11a2) to the bus disconnector chamber (11a1);
A second control valve (EV2) installed in the second partition plate (11c) to control the flow of insulating gas from the first transformer chamber (11a2) to the circuit breaker chamber (11a3);
A third control valve (EV3) installed in the third partition plate (11d) to control the flow of insulating gas from the second transformer chamber (11a2) to the circuit breaker chamber (11a3);
A fourth control valve (EV4) installed on the fourth partition plate (11e) to control the flow of insulating gas from the second transformer chamber (11a2) to the line disconnector chamber (11a5);
It is installed in the bus disconnector room (11a1) and the circuit breaker room (11a3) and the line disconnector room (11a5), respectively, and the internal pressure of the bus disconnector room (11a1) and the circuit breaker room (11a3) and the line disconnector room (11a5) 1st, 2nd, and 3rd pressure sensors (PS1, PS2, PS3) that respectively measure;
A first reference value and a second reference value smaller than the first reference value are set, and measured pressure values are received from the first, second, and third pressure sensors (PS1, PS2, and PS3), and the measurement is made from the first pressure sensor (PS1). If the pressure value is less than the first reference value, the first control valve (EV1) is opened, and if the measured pressure value from the second pressure sensor (PS2) is less than the first reference value, the second control valve (EV2) or the third control is controlled. The valve (EV3) is opened, and if the measured pressure value from the third pressure sensor (PS3) is less than the first reference value, the fourth control valve (EV4) is opened, and the first pressure sensor (PS1) or the second pressure sensor is opened. A control unit (CB) that outputs a warning signal when the measured pressure value from (PS2) or the third pressure sensor (PS3) is less than the second reference value;
Equipped with a transmitter (TR) that wirelessly transmits a warning signal from the control unit (CB) to the outside,
The tram line support mechanism 30,
The first and second vertical supports (31, 31') are provided to face each other, and both ends are installed on the top of the first and second vertical supports (31, 31'), respectively, and the first and second vertical supports (31, 31') are provided to face each other. ), a horizontal support 32 connecting the horizontal support 31, a base 33 provided horizontally at the bottom of the horizontal support 31, and a horizontal support 33 that is movable in the horizontal direction and is fixed to a certain position and is pulled out. Equipped with a plurality of guide insulators (34) supporting the electric wire (21) and a plurality of suspension insulators (36) installed on the horizontal supports (32) and supporting the tram line (TL).
It is characterized by

Description

Car line support structure for subway power supply {Car Line Support Structure}

The present invention relates to a tram line support structure for subway power supply.

Subway substations are installed at certain distances and transform the electricity received through the KEPCO substation (not shown) into a voltage suitable for use in electric railways and supply it to the tram lines.

At this time, electricity received from the KEPCO substation is supplied to the tram line through a gas insulated switchgear and Scott transformer.

Gas Insulated Switchgear (GIS) is a power switchgear used in indoor and outdoor power plants or substations. It safely opens and closes lines not only in normal conditions under usage conditions, but also in abnormal conditions such as power accidents or short circuits. It is a device that appropriately protects the power system.

Additionally, Scott transformers are used to transform voltage for catenary purposes.

Meanwhile, the lead wire taken out from the Scott transformer is supported by an insulator provided on the catenary support stand and connected to the catenary line. Conventionally, the position of the insulator is fixed, so if the positions between the Scott transformer and the catenary line do not match each other, , there was difficulty in connecting the above-mentioned outgoing wires to the tram lines.

In addition, gas insulated switchgear is filled with insulating gas (SF6: sulfur hexafluoride gas), and if this insulating gas (SF6) leaks to the outside, the insulation performance may deteriorate, causing serious problems such as explosion.

Republic of Korea Patent Publication No. 10-1411025 Republic of Korea Patent Publication No. 10-1468254

The present invention was invented to solve the above problems, and safely supports the tram line (TL) and conveniently connects the lead wire 21 from the transformer 20 to the tram line TL. By utilizing the insulating gas in the 2nd transformer room (11a2, 11a4), the insulation performance of the equipment in the GIS (10) is prevented from deteriorating, and the insulating gas is easily filled into the 1st and 2nd transformer rooms (11a2, 11a4). The task to be solved is to provide a 'tram line support structure for subway power supply' that improves safety through efficient use of .

The present invention to solve the above problems,
A bus disconnector room (11a1) that accommodates the insulating gas, a first transformer room (11a2) that communicates with the bus disconnector chamber (11a1) and accommodates the insulating gas, and a first transformer chamber (11a2) that communicates with the first transformer chamber (11a2) and accommodates the insulating gas. a circuit breaker chamber (11a3), a second transformer chamber (11a4) that communicates with the circuit breaker chamber (11a3) and accommodates insulating gas, and a line disconnector chamber (11a5) that communicates with the second transformer chamber (11a4) and accommodates insulating gas. ), a first partition plate 11b installed in the case 11a and dividing the bus disconnector chamber 11a1 and the first transformer chamber 11a2, and a first partition plate 11b installed in the case 11a. A second partition plate 11c is installed in the case 11a to partition the first transformer chamber 11a2 and the breaker chamber 11a3, and a second partition plate 11c is installed in the case 11a to partition the breaker chamber 11a3 from the second transformer chamber 11a4. A GIS main body (11) equipped with a three-partition plate (11d) and a fourth partition plate (11e) built into the case (11a) to partition the second deflector chamber (11a4) and the line disconnector chamber (11a5); A bus disconnector (12) installed in the bus disconnector room (11a1); A first current transformer (13) installed in the first current transformer room (11a2); A circuit breaker (14) installed in the circuit breaker room (11a3); A second transformer (15) installed in the second transformer room (11a4); A line disconnector (16) installed in the line disconnector room (11a5); A GIS (10) consisting of a bushing (17) installed in the line disconnector room (11a5) and protruding to the outside; A transformer (20) electrically connected to the GIS (10); In the tram line support structure for subway power supply, which includes a tram line support mechanism (30) that supports the tram line (TL) and supports a plurality of lead wires (21) drawn from the transformer (20),
The first partition plate (11b) partitions the bus disconnector chamber (11a1) and the first transformer chamber (11a2) so that the bus disconnector chamber (11a1) and the first transformer chamber (11a2) do not communicate,
The second partition plate (11c) partitions the first transformer chamber (11a2) and the circuit breaker chamber (11a3) so that the first transformer chamber (11a2) and the circuit breaker chamber (11a3) do not communicate,
The third partition plate 11d partitions the circuit breaker chamber 11a3 and the second transformer chamber 11a4 so that the circuit breaker chamber 11a3 and the second transformer chamber 11a4 do not communicate,
The fourth partition plate 11e divides the second transformer chamber 11a4 and the line disconnector chamber 11a5 so that the second transformer chamber 11a4 and the line disconnector chamber 11a5 do not communicate,
GIS(10) is,
A first check valve (CV1) installed on the first partition plate (11b) to allow insulating gas to flow only from the bus disconnector chamber (11a1) to the first transformer chamber (11a2);
A second check valve (CV2) installed on the second partition plate (11c) to allow insulating gas to flow from the circuit breaker chamber (11a3) only to the first transformer chamber (11a2);
A third check valve (CV3) installed on the third partition plate (11d) to allow insulating gas to flow only from the circuit breaker chamber (11a3) to the second transformer chamber (11a4);
A fourth check valve (CV4) installed on the fourth partition plate (11e) to allow insulating gas to flow only from the line disconnector chamber (11a5) to the second transformer chamber (11a2);
A first control valve (EV1) installed on the first partition plate (11b) to control the flow of insulating gas from the first transformer chamber (11a2) to the bus disconnector chamber (11a1);
A second control valve (EV2) installed in the second partition plate (11c) to control the flow of insulating gas from the first transformer chamber (11a2) to the circuit breaker chamber (11a3);
A third control valve (EV3) installed in the third partition plate (11d) to control the flow of insulating gas from the second transformer chamber (11a2) to the circuit breaker chamber (11a3);
A fourth control valve (EV4) installed on the fourth partition plate (11e) to control the flow of insulating gas from the second transformer chamber (11a2) to the line disconnector chamber (11a5);
It is installed in the bus disconnector room (11a1) and the circuit breaker room (11a3) and the line disconnector room (11a5), respectively, and the internal pressure of the bus disconnector room (11a1) and the circuit breaker room (11a3) and the line disconnector room (11a5) 1st, 2nd, and 3rd pressure sensors (PS1, PS2, PS3) respectively measuring;
A first reference value and a second reference value smaller than the first reference value are set, and measured pressure values are received from the first, second, and third pressure sensors (PS1, PS2, and PS3), and the measurement is made from the first pressure sensor (PS1). If the pressure value is less than the first reference value, the first control valve (EV1) is opened, and if the measured pressure value from the second pressure sensor (PS2) is less than the first reference value, the second control valve (EV2) or the third control is controlled. The valve (EV3) is opened, and if the measured pressure value from the third pressure sensor (PS3) is less than the first reference value, the fourth control valve (EV4) is opened, and the first pressure sensor (PS1) or the second pressure sensor is opened. A control unit (CB) that outputs a warning signal when the measured pressure value from (PS2) or the third pressure sensor (PS3) is less than the second reference value;
Equipped with a transmitter (TR) that wirelessly transmits a warning signal from the control unit (CB) to the outside,
The tram line support mechanism 30 is,
The first and second vertical supports (31, 31') are provided to face each other, and both ends are installed on the top of the first and second vertical supports (31, 31'), respectively, and the first and second vertical supports (31, 31') are provided to face each other. ), a horizontal support 32 connecting the horizontal support 31, a base 33 provided horizontally at the bottom of the horizontal support 31, and a horizontal support 33 that is movable in the horizontal direction and is fixed to a certain position and is pulled out. Equipped with a plurality of guide insulators (34) supporting the electric wire (21) and a plurality of suspension insulators (36) installed on the horizontal supports (32) and supporting the tram line (TL).
It is characterized by

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The present invention, which is a means of solving the above problem, safely supports the tram line (TL) through the tram line support mechanism 30, and moves the position of the guide insulator 34 to protect the transformer 20 and the tram line (TL). There is an effect that the outgoing wire 21 of the transformer 20 and the tram line (TL) can be conveniently connected to suit various installation environments.

In addition, the present invention provides a first current transformer chamber (11a2) in which arcs are relatively less generated when there is a shortage of insulating gas in the bus disconnector room (11a1) and circuit breaker room (11a3) and the line disconnector room (11a5) where arcs are easily generated. ) and the insulating gas in the second transformer room (11a4) is transferred to the bus disconnector room (11a1) and circuit breaker room (11a3) and the line disconnector room (11a5), and the bus disconnector room (11a1) and circuit breaker room (11a3) ) and the deterioration of the insulation performance of the line disconnector room (11a5) is effectively prevented and safety is improved.

In addition, the present invention includes first, second, third, fourth check valves (CV1, CV2, CV3, CV4) and first, 2, 3, and 4 control valves (EV1, EV2, EV3, EV4) are installed, and the first deflector chamber (11a2) and 2. The insulating gas in the current transformer room (11a4) is efficiently utilized, and the first, second, third, and fourth check valves (CV1, CV2, CV3, and CV4) are used to connect the first transformer room (11a2) and the second transformer room ( 11a4) It has the effect of efficiently filling the interior with insulating gas.

In addition, the present invention, even if a separate pressure sensor is not installed in the first transformer chamber (11a2) and the second transformer chamber (11a4), the bus disconnector chamber (11a1), the circuit breaker chamber (11a3), and the line disconnector chamber By checking the pressure state within (11a5), it is possible to know the insulating gas filling state (insufficient gas state) of the first transformer chamber (11a) and the second transformer chamber (11a4).

1 is a diagram schematically showing the interconnection relationship between the components of the present invention,
Figure 2 is a partial cross-sectional view showing the guide insulator part in Figure 1;
Figure 3 is a side view for explaining the tank battery support mechanism of the present invention,
Figure 4 is a diagram showing a portion of Figure 3, and Figure 5 is a diagram for explaining the GIS of the present invention.
Figure 6 is a schematic diagram of Figure 5;
Figure 7 is a diagram for explaining the control structure of the control unit according to the present invention,
8 to 10 are diagrams for explaining the operation of the present invention.

Hereinafter, the present invention will be described so that those skilled in the art can easily implement it.

Figure 1 is a diagram schematically showing the interconnection relationship between the components of the present invention, Figure 2 is a partial cross-sectional view showing the guide insulator portion in Figure 1, Figure 3 is a side view for explaining the tram line support mechanism of the present invention, and Figure 4 is a diagram showing a portion of FIG. 3, FIG. 5 is a diagram for explaining the GIS of the present invention, FIG. 6 is a diagram schematically showing FIG. 5, and FIG. 7 is a control structure of the control unit according to the present invention. As a drawing for explanation, the configuration of the present invention will be described with reference to FIGS. 1 to 7 as follows. Meanwhile, in the present invention, the directionality of the configuration of the present invention will be explained by taking the X-axis direction in FIG. 3 as the front-back direction and the Z-axis direction in FIG. 3 as the up-down direction.

The tram line support structure for subway power supply according to the present invention includes a GIS (10), a transformer (20), and a tram line support mechanism (30). Meanwhile, in the present invention, the electrical connection structure of the GIS 10, the transformer 20, and the tram line (TL) is schematically shown.

As shown in FIGS. 1, 5, 6, and 7, the GIS (10) includes a GIS main body (11), a bus disconnector (12), a first transformer (13), and a circuit breaker (14). ), a second current transformer (15), a line disconnector (16), a bushing (17), a repair welding ground switch (18), and a line welding ground switch (19).

The GIS main body 11 is equipped with a case 11a, a first partition plate 11b, a second partition plate 11c, a third partition plate 11d, and a fourth partition plate 11e. .

The case 11a includes a bus disconnector chamber 11a1 in which insulating gas (SF6) is accommodated, a first transformer chamber 11a2 in communication with the bus disconnector chamber 11a1 and accommodating the insulating gas, and a first transformer. A circuit breaker chamber (11a3) that communicates with the chamber (11a2) and accommodates the insulating gas, a second transformer chamber (11a4) that communicates with the circuit breaker chamber (11a3) and accommodates the insulating gas, and a second transformer chamber (11a4) It is equipped with a line disconnector room (11a5) where insulating gas is accommodated.

The first partition plate 11b is installed inside the case 11a and partitions the bus disconnector chamber 11a1 and the first deflector chamber 11a2. In the present invention, the first partition plate (11b) partitions the bus disconnector chamber (11a1) and the first transformer chamber (11a2) so that the bus disconnector chamber (11a1) and the first transformer chamber (11a2) do not communicate.

The second partition plate 11c is built into the case 11a and partitions the first current transformer chamber 11a2 and the circuit breaker chamber 11a3. In the present invention, the second partition plate 11c partitions the first deflector chamber 11a2 and the breaker chamber 11a3 so that the first deflector chamber 11a2 and the breaker chamber 11a3 do not communicate.

The third partition plate 11d is built into the case 11a and partitions the circuit breaker chamber 11a3 and the second transformer chamber 11a4. In the present invention, the third partition plate 11d partitions the circuit breaker chamber 11a3 and the second current transformer chamber 11a4 so that the circuit breaker chamber 11a3 and the second current transformer chamber 11a4 do not communicate with each other.

The fourth partition plate 11e is built into the case 11a and divides the second transformer chamber 11a4 and the line disconnector chamber 11a5. In the present invention, the fourth partition plate 11e partitions the second transformer chamber 11a4 and the line disconnector chamber 11a5 so that the second transformer chamber 11a4 and the line disconnector chamber 11a5 do not communicate.

The bus disconnector 12 is installed in the bus disconnector room 11a1. In the present invention, the bus disconnector 12 is used to open and close a circuit in a no-load state and disconnects the circuit going from the bus ML to the first current transformer 13.

The first current transformer 13 is installed in the first current transformer chamber 11a2. In the present invention, the first current transformer 3 converts current.

The circuit breaker 14 is installed in the circuit breaker room 11a3. In the present invention, the circuit breaker 14 operates momentarily to block the current when an abnormality occurs in the power system, and the power system can be protected by the operation of the circuit breaker 14.

The second current transformer 15 is installed in the second current transformer chamber 11a4. In the present invention, the second current transformer 15 converts current.

The line disconnector 16 is installed in the line disconnector room 11a5. In the present invention, the line disconnector 16 completely disconnects the power outage part from the power source when inspecting or repairing the equipment, or opens and closes the no-load circuit for the transfer of substation facilities.

The bushing 17 is installed in the line disconnector room 11a5 and protrudes outward.

The maintenance ground switch 18 is installed above the first bus disconnector room 11a1 and the line disconnector room 11a5, respectively, and grounds the circuit under abnormal conditions.

The line grounding switch 19 is installed below the line disconnector room 11a5, and grounds the line under abnormal conditions.

Meanwhile, as shown in FIG. 5, the present invention includes a bus disconnector 12, a first transformer 13, a circuit breaker 14, a second transformer 15, a line disconnector 16, and a bushing 17. , a line is formed through the connection between the repair welding ground switch (18) and the line welding ground switch (19).

In addition, the present invention includes a bus disconnector (12), a first transformer (13), a circuit breaker (14), a second transformer (15), a disconnector for a line (16), a bushing (17), and a maintenance welding ground switch (18). ), In addition to the line welding ground switch (19), the usual configuration to perform the GIS (Gas Insulated Switchgear) function is included. And for the well-known configuration according to the present invention, refer to Republic of Korea Patent Publication No. 10-1468254.

In addition, the GIS (10) of the present invention includes 1st, 2nd, 3rd, and 4th check valves (CV1, CV2, CV3, CV4) and 1st, 2nd, 3rd, and 4th control valves (EV1, EV2, EV3, EV4). Wow, it is equipped with the second and third pressure sensors (PS1, PS2, PS3).

The first check valve (CV1) is installed on the first partition plate (11b) and allows the insulating gas to flow only from the bus disconnector chamber (11a1) to the first transformer chamber (11a2).

The second check valve (CV2) is installed in the second partition plate (11c) and allows the insulating gas to flow from the circuit breaker chamber (11a3) only to the first transformer chamber (11a2).

The third check valve (CV3) is installed in the third partition plate (11d) and allows the insulating gas to flow from the circuit breaker chamber (11a3) only to the second transformer chamber (11a4).

The fourth check valve (CV4) is installed on the fourth partition plate (11e) and allows the insulating gas to flow from the line disconnector chamber (11a5) only to the second transformer chamber (11a2).

The first control valve EV1 is installed on the first partition plate 11b and controls the flow of insulating gas from the first transformer chamber 11a2 to the bus disconnector chamber 11a1. In the present invention, the first control valve (EV1) is of the electromagnetic valve type, and its operation is controlled by the control unit (CB).

The second control valve (EV2) is installed on the second partition plate (11c) and controls the flow of insulating gas from the first transformer chamber (11a2) to the circuit breaker chamber (11a3). In the present invention, the second control valve (EV2) is of the electromagnetic valve type, and its operation is controlled by the control unit (CB).

The third control valve EV3 is installed on the third partition plate 11d and controls the flow of insulating gas from the second transformer chamber 11a2 to the circuit breaker chamber 11a3. In the present invention, the third control valve (EV3) is of the electromagnetic valve type, and its operation is controlled by the control unit (CB).

The fourth control valve EV4 is installed on the fourth partition plate 11e and controls the flow of insulating gas from the second transformer chamber 11a2 to the line disconnector chamber 11a5. In the present invention, the fourth control valve (EV4) is of the electromagnetic valve type, and its operation is controlled by the control unit (CB).

The first, second, and third pressure sensors (PS1, PS2, and PS3) are installed in the bus disconnector room 11a1, the circuit breaker room 11a3, and the line disconnector room 11a5, respectively. ) and measure the internal pressure of the circuit breaker room (11a3) and the line disconnector room (11a5), respectively.

The control unit (CB) is configured to set a first reference value and a second reference value smaller than the first reference value, and receives measured pressure values from the first, second, and third pressure sensors (PS1, PS2, and PS3). If the measured pressure value from the pressure sensor (PS1) is less than the first reference value, the first control valve (EV1) is opened, and if the measured pressure value from the second pressure sensor (PS2) is less than the first reference value, the second control is performed. The valve (EV2) or the third control valve (EV3) is opened, and if the measured pressure value from the third pressure sensor (PS3) is less than the first reference value, the fourth control valve (EV4) is opened, and the first pressure sensor (PS3) is opened. If the measured pressure value from (PS1), second pressure sensor (PS2), or third pressure sensor (PS3) is less than the second reference value, a warning signal is output. In the present invention, the first and second reference values are set in various ways as needed, and the control unit (CB) is installed in the control panel (CS) arranged around the GIS main body (10).

The transmitter (TR) wirelessly transmits a warning signal from the control unit (CB) to the outside. In the present invention, the transmitter (TR) is installed in the control panel (CS) and controlled by the control unit (CB).

The transformer 20 is electrically connected to the GIS 10, as shown in FIG. 1. In the present invention, the transformer 20 is a Scott transformer, and a plurality of lead wires 21 are drawn out and connected to the tram line TL.

As shown in FIG. 1, the tram line support mechanism 30 supports the tram line TL and a plurality of lead wires 21 drawn from the transformer 20.

In the present invention, the tram line support mechanism 30 includes first and second vertical supports 31 and 31', horizontal supports 32, base 33, guide insulator 34, and suspension insulator 36. Equipped with

The first and second vertical supports 31 and 31' are provided to face each other. In the present invention, the first and second vertical supports 31 and 31' are installed on the ground in a vertical direction (up and down).

The horizontal supports 32 are installed at both ends on top of the first and second vertical supports 31 and 31', respectively, and connect the first and second vertical supports 31 and 31'.

The base 33 is provided in the horizontal direction (forward-backward direction) at the lower part of the horizontal support 31. In the present invention, the base 33 has a plate shape, and a guide groove 33a is formed along the horizontal direction. In the present invention, the guide groove (33a) may have a 'T'-shaped cross section. Meanwhile, in the present invention, the base 33 can be detachably installed on the horizontal support 31.

The guide insulator 34 is installed on the base 33 to be movable in the horizontal direction (front-back direction) and fixable at a certain position, and supports the lead wire 21. In the present invention, a plurality of guide insulators 34 are provided. In the present invention, the guide insulator 34 is provided with a 'T' shaped insertion part 34a at the top, and the insertion part 34a is movably inserted into the guide groove 33a. Meanwhile, in the present invention, a plurality of separate fixtures 35 are provided, and each fixture 35 is fastened with a through thread to the base 33a to pressurize and secure each of the plurality of insertion portions 34a. In the present invention, when the position of the guide insulator 34 is fixed through a pressurizing method according to the fixture 35, the base 33a is provided with a plurality of screw holes in the horizontal direction. In addition, in the present invention, various conventional methods can be applied to fixing the position of the guide insulator 34.

The suspension insulator 36 is installed on the horizontal support 32 and supports the tram line TL. In the present invention, a plurality of suspension insulators 36 are provided.

FIGS. 8 to 10 are diagrams for explaining the operation of the present invention. The operation of the present invention is explained with reference to FIGS. 8 to 10 as follows.

In the present invention, the position of the guide insulator 34 is adjusted according to the position of the outgoing wire 21 from the transformer 20 or the position of the suspension insulator 36 on which the tram line TL is supported, so that the outgoing wire 21 ) and the tram line (TL) can be connected stably.

That is, the present invention can adjust the position of the guide insulator 34 as shown in FIG. 8 to connect the lead wire 21 and the tram line TL to suit various installation environments.

Hereinafter, the method of maintaining insulation performance according to the movement of insulation gas in the present invention will be described as follows.

According to the present invention, when insulating gas leaks little by little from the bus disconnector chamber 11a1 of the case 11a, the pressure of the busbar disconnector chamber 11a1 is lowered.

At this time, the first pressure sensor (PS1) transmits the measured pressure value of the bus disconnector room (11a1) to the control unit (CB), and the control unit (CB) compares the measured pressure value with a preset first reference value. , if the measured pressure value is lower than the first reference value, the first control valve (EV1) is opened.

Then, the insulating gas contained (filled) in the first current transformer chamber 11a2 of the case 11a moves to the bus disconnector chamber 11a1 through the first control valve EV1 (see arrow direction in FIG. 9). , it is possible to prevent deterioration of the insulation performance of the bus disconnector room 11a1.

In addition, according to the present invention, when insulating gas leaks little by little from the circuit breaker chamber (11a3) of the case (11a), the pressure of the circuit breaker chamber (11a3) decreases.

At this time, the second pressure sensor (PS2) transmits the measured pressure value of the circuit breaker chamber (11a3) to the control unit (CB), and the control unit (CB) compares the measured pressure value with a preset first reference value, If the measured pressure value is lower than the first reference value, the second control valve (EV2) or the third control valve (EV3) is opened, or the second control valve (EV2) and the third control valve (EV3) are opened.

Then, the insulating gas contained (filled) in the first transformer chamber (11a2) and the second transformer chamber (11a4) of the case (11a) passes through the second control valve (EV2) and the third control valve (EV3) to the circuit breaker chamber. By moving to (11a3) (see the arrow direction in FIG. 9), it is possible to prevent deterioration of the insulation performance of the circuit breaker room (11a3).

In addition, according to the present invention, when insulating gas leaks little by little from the line disconnector chamber 11a5 of the case 11a, the pressure of the line disconnector chamber 11a5 is lowered.

At this time, the third pressure sensor (PS3) transmits the measured pressure value of the line disconnector room (11a5) to the control unit (CB), and the control unit (CB) compares the measured pressure value with the preset first reference value. , if the measured pressure value is lower than the first reference value, the fourth control valve (EV4) is opened.

Then, the insulating gas accommodated (filled) in the second transformer chamber 11a4 of the case 11a moves to the line disconnector chamber 11a5 through the fourth control valve EV4 (see arrow direction in FIG. 9). , it is possible to prevent deterioration of the insulation performance of the line disconnector room 11a5.

In this way, despite moving the insulating gas in the first transformer room (11a2) and the second transformer room (11a4) to the bus disconnector room (11a1), the circuit breaker room (11a3), and the line disconnector room (11a5), When the measured pressure values from the 1st, 2nd, and 3rd pressure sensors (PS1, PS2, and PS3) become lower than the preset second reference value, the control unit (CB) sends the first, second, and third pressure signals to a separate management center via the transmitter (TR). A warning signal corresponding to the 2nd and 3rd pressure sensors (PS1, PS2, PS3) is output. Then, the manager can check this and quickly respond (check) if an insulation problem occurs in the GIS (10).

Meanwhile, in the present invention, after the insulating gas in the first transformer room (11a2) or the second transformer room (11a4) is moved to the bus disconnector room (11a1) or circuit breaker room (11a3) or line disconnector room (11a5), When the internal pressure of the bus disconnector room (11a1), circuit breaker room (11a3), or line disconnector room (11a5) becomes higher again than the preset first reference value, the first control valve (EV1) or the second control valve (EV2) Alternatively, the third control valve (EV3) or fourth control valve (EV4) is closed by the control unit (CB).

In addition, in the present invention, if the insulating gas is insufficient below the standard (second standard value) in the bus disconnector room 11a1 or the circuit breaker room 11a3 or the line disconnector room 11a5, the bus disconnector room 11a1 or the circuit breaker room 11a5 is cut off. Fill the air chamber (11a3) or the line disconnector chamber (11a5) with insulating gas.

At this time, in the present invention, when insulating gas is injected into the bus disconnector chamber (11a1), the insulating gas injected into the busbar disconnector chamber (11a1) is sufficiently injected into the busbar disconnector chamber (11a1) to open the first check valve (CV1). moves to the first deflector chamber 11a2 and fills the first deflector chamber 11a2 (see arrow direction in FIG. 10).

In addition, according to the present invention, when the insulating gas is injected into the breaker chamber (11a3), the insulating gas injected into the breaker chamber (11a3) is sufficiently injected into the breaker chamber (11a3) and is injected into the first transformer chamber through the second check valve (CV2). Move to (11a2) to fill the first transformer chamber (11a2) and move to the second transformer chamber (11a4) through the third check valve (CV3) to fill the second transformer chamber (11a4) (see Figure 10). (see arrow direction)

In addition, according to the present invention, when the insulating gas is injected into the line disconnector room (11a5), the insulating gas injected into the line disconnector room (11a5) is sufficiently injected into the line disconnector room (11a5) to open the fourth check valve (CV4). moves to the second deflector chamber (11a4) and fills the second deflector chamber (11a4) (see arrow direction in FIG. 10).

Meanwhile, the bus disconnector room 11a1, circuit breaker room 11a3, or line disconnector room 11a5 is frequently opened for inspection, etc.

At this time, in the present invention, when the bus disconnector room (11a1) or the circuit breaker room (11a3) or the line disconnector room (11a5) is opened for inspection, the bus disconnector room (11a1) or the circuit breaker room (11a3) or the line disconnector room (11a1) is disconnected. The insulating gas inside the log chamber 11a5 is discharged to the outside. However, the 1st, 2, 3, and 4th compartment plates (11b, 11c, 11d, 11e) are installed with the 1st, 2, 3, and 4th check valves (CV1, CV2, CV3, and CV4), (11a2,11a4) The insulating gas inside is not discharged to the outside.

In addition, in the present invention, when the inspection is completed, the bus disconnector room (11a1) or the circuit breaker room (11a3) or the line disconnector room (11a5) is closed and insulating gas is injected. Insulating gas is injected into (11a3) or the line disconnector room (11a5) through the same process as the above-mentioned insulating gas injection (see FIG. 10).

As described above, the present invention safely supports the tramline (TL) through the tramline support mechanism 30, and allows the transformer 20 and the tramline (TL) to be installed in various installation environments by moving the position of the guide insulator 34. Correspondingly, there is an effect of conveniently connecting the lead wire 21 of the transformer 20 and the tram line TL.

In addition, the present invention provides a first current transformer room (11a2) in which arcs are relatively less likely to occur when there is a shortage of insulating gas in the bus disconnector room (11a1) and circuit breaker room (11a3) and the line disconnector room (11a5) where arcs are easily generated. ) and the insulating gas in the second transformer room (11a4) is transferred to the bus disconnector room (11a1) and circuit breaker room (11a3) and the line disconnector room (11a5), and the bus disconnector room (11a1) and circuit breaker room (11a3) ) and the deterioration of the insulation performance of the line disconnector room (11a5) is effectively prevented and safety is improved.

In addition, the present invention includes first, second, third, fourth check valves (CV1, CV2, CV3, CV4) and first, 2, 3, and 4 control valves (EV1, EV2, EV3, EV4) are installed, and the first deflector chamber (11a2) and 2. The insulating gas in the current transformer room (11a4) is efficiently utilized, and the first, second, third, and fourth check valves (CV1, CV2, CV3, and CV4) are used to connect the first transformer room (11a2) and the second transformer room ( 11a4) It has the effect of efficiently filling the interior with insulating gas.

In addition, the present invention, even if a separate pressure sensor is not installed in the first transformer chamber (11a2) and the second transformer chamber (11a4), the bus disconnector chamber (11a1), the circuit breaker chamber (11a3), and the line disconnector chamber By checking the pressure state within (11a5), it is possible to know the insulating gas filling state (insufficient gas state) of the first transformer chamber (11a) and the second transformer chamber (11a4).

Meanwhile, in the sense that the present invention further includes various configurations for supplying electric power to electric trains, such as the GIS (10), in the support structure for supporting electric train lines, the title and subject of claims of the present invention are 'tramline supporting structures for supplying electric power to electric trains'. It is defined as '.

10: GIS 11; GIS main body
12: Bus disconnector 13: First transformer
14: breaker 15; 2nd transformer
16: Line disconnector 17: Bushing
18: Repair welding ground switch 19: Line welding ground switch
CV1~CV4: Check valves 1~4 EV1~EV4: Control valves 1~4
PS1~PS3: 1st~3rd pressure sensor CB: Control unit
TR: Transmitter 20: Transformer
30: Tram line support mechanism 31,31': 1st and 2nd vertical supports
32: horizontal support 33: base
34: guide insulator 35: fixture
36: Suspension Lover ML: Mothership
TL: tram line

Claims (1)

A bus disconnector room (11a1) that accommodates the insulating gas, a first transformer room (11a2) that communicates with the bus disconnector chamber (11a1) and accommodates the insulating gas, and a first transformer chamber (11a2) that communicates with the first transformer chamber (11a2) and accommodates the insulating gas. a circuit breaker chamber (11a3), a second transformer chamber (11a4) that communicates with the circuit breaker chamber (11a3) and accommodates insulating gas, and a line disconnector chamber (11a5) that communicates with the second transformer chamber (11a4) and accommodates insulating gas. ), a first partition plate 11b installed in the case 11a and dividing the bus disconnector chamber 11a1 and the first transformer chamber 11a2, and a first partition plate 11b installed in the case 11a. A second partition plate 11c is installed in the case 11a to partition the first transformer chamber 11a2 and the breaker chamber 11a3, and a second partition plate 11c is installed in the case 11a to partition the breaker chamber 11a3 from the second transformer chamber 11a4. A GIS main body (11) equipped with a three-partition plate (11d) and a fourth partition plate (11e) built into the case (11a) to partition the second deflector chamber (11a4) and the line disconnector chamber (11a5); A bus disconnector (12) installed in the bus disconnector room (11a1); A first current transformer (13) installed in the first current transformer room (11a2); A circuit breaker (14) installed in the circuit breaker room (11a3); A second transformer (15) installed in the second transformer room (11a4); A line disconnector (16) installed in the line disconnector room (11a5); A GIS (10) consisting of a bushing (17) installed in the line disconnector room (11a5) and protruding to the outside; A transformer (20) electrically connected to the GIS (10); In the tram line support structure for subway power supply, which includes a tram line support mechanism (30) that supports the tram line (TL) and supports a plurality of lead wires (21) drawn from the transformer (20),
The first partition plate (11b) partitions the bus disconnector chamber (11a1) and the first transformer chamber (11a2) so that the bus disconnector chamber (11a1) and the first transformer chamber (11a2) do not communicate,
The second partition plate (11c) partitions the first transformer chamber (11a2) and the circuit breaker chamber (11a3) so that the first transformer chamber (11a2) and the circuit breaker chamber (11a3) do not communicate,
The third partition plate 11d partitions the circuit breaker chamber 11a3 and the second transformer chamber 11a4 so that the circuit breaker chamber 11a3 and the second transformer chamber 11a4 do not communicate,
The fourth partition plate 11e divides the second transformer chamber 11a4 and the line disconnector chamber 11a5 so that the second transformer chamber 11a4 and the line disconnector chamber 11a5 do not communicate,
GIS(10) is,
A first check valve (CV1) installed on the first partition plate (11b) to allow insulating gas to flow only from the bus disconnector chamber (11a1) to the first transformer chamber (11a2);
A second check valve (CV2) installed on the second partition plate (11c) to allow insulating gas to flow from the circuit breaker chamber (11a3) only to the first transformer chamber (11a2);
A third check valve (CV3) installed on the third partition plate (11d) to allow insulating gas to flow only from the circuit breaker chamber (11a3) to the second transformer chamber (11a4);
A fourth check valve (CV4) installed on the fourth partition plate (11e) to allow insulating gas to flow only from the line disconnector chamber (11a5) to the second transformer chamber (11a2);
A first control valve (EV1) installed on the first partition plate (11b) to control the flow of insulating gas from the first transformer chamber (11a2) to the bus disconnector chamber (11a1);
A second control valve (EV2) installed in the second partition plate (11c) to control the flow of insulating gas from the first transformer chamber (11a2) to the circuit breaker chamber (11a3);
A third control valve (EV3) installed in the third partition plate (11d) to control the flow of insulating gas from the second transformer chamber (11a2) to the circuit breaker chamber (11a3);
A fourth control valve (EV4) installed on the fourth partition plate (11e) to control the flow of insulating gas from the second transformer chamber (11a2) to the line disconnector chamber (11a5);
It is installed in the bus disconnector room (11a1) and the circuit breaker room (11a3) and the line disconnector room (11a5), respectively, and the internal pressure of the bus disconnector room (11a1) and the circuit breaker room (11a3) and the line disconnector room (11a5) 1st, 2nd, and 3rd pressure sensors (PS1, PS2, PS3) respectively measuring;
A first reference value and a second reference value smaller than the first reference value are set, and measured pressure values are received from the first, second, and third pressure sensors (PS1, PS2, and PS3), and the measurement is made from the first pressure sensor (PS1). If the pressure value is less than the first reference value, the first control valve (EV1) is opened, and if the measured pressure value from the second pressure sensor (PS2) is less than the first reference value, the second control valve (EV2) or the third control is controlled. The valve (EV3) is opened, and if the measured pressure value from the third pressure sensor (PS3) is less than the first reference value, the fourth control valve (EV4) is opened, and the first pressure sensor (PS1) or the second pressure sensor is opened. A control unit (CB) that outputs a warning signal when the measured pressure value from (PS2) or the third pressure sensor (PS3) is less than the second reference value;
Equipped with a transmitter (TR) that wirelessly transmits a warning signal from the control unit (CB) to the outside,
The tram line support mechanism 30 is,
The first and second vertical supports (31, 31') are provided to face each other, and both ends are installed on the top of the first and second vertical supports (31, 31'), respectively, and the first and second vertical supports (31, 31') are provided to face each other. ), a horizontal support 32 connecting the horizontal support 31, a base 33 provided horizontally at the bottom of the horizontal support 31, and a horizontal support 33 that is movable in the horizontal direction and is fixed to a certain position and is pulled out. Equipped with a plurality of guide insulators (34) supporting the electric wire (21) and a plurality of suspension insulators (36) installed on the horizontal supports (32) and supporting the tram line (TL).
A tram line support structure for subway power supply, characterized in that.