JP2003100521A - Stationary induction apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stationary induction apparatus that can utilize heat of itself to generate electric power and furthermore cool itself by the generated output. SOLUTION: The main body 2 of a stationary induction apparatus is housed together with insulation oil in a case 1. A Peltier element 6 as a temperature difference power generating element that generates electric power by utilizing a difference in temperature between heat in the high-temperature region and another region lower in temperature, and an operating means 7 for cooling that is operated by electric power produced in the Peltier element 6 are used to cool the insulating oil and the stationary induction apparatus 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to stationary induction equipment such as ground-mounted transformers and reactors.

[0002]

2. Description of the Related Art A stationary induction device, as shown in FIG.
A stationary induction device body 2 is housed in a case 1 together with insulating oil (not shown), a radiator 3 is connected to the outer surface of the case 1, and oil passages 3a are provided on the upper and lower parts of the radiator 3,
The insulating oil in the case 1 is circulated through the radiator 3 via 3b to cool the insulating oil and the stationary induction device body 2. The stationary induction device body 2 has a structure in which a coil 5 is wound around an iron core 4.

This static induction device utilizes natural convection of insulating oil to circulate through a radiator 3 to cool the insulating oil and the static induction device main body 2, and the temperature of the insulating oil and static induction device main body 2. Controls the rise.

Therefore, in the design of the static induction device, the amount of insulating oil, the cooling (heat dissipation) structure of the static induction device main body 2 and the case 1 are determined according to the capacity, and the static induction device becomes larger as the capacity increases.

In recent years, the weight of stationary induction equipment has been reduced,
There is a need for compactness, and in particular, ground-based transformers are installed on the road, so there is a great need for them.

[0006]

However, in a static induction device in which insulating oil is naturally convected, when the case 1 has the same size as the conventional one and only the capacity of the static induction device body 2 is increased, the cooling efficiency is poor. Therefore, there is a problem that the temperature rise cannot be suppressed.

If the temperature rise cannot be suppressed, the temperature of the insulating oil or the coil 5 of the stationary induction device body 2 may rise, and the insulating paper or the like used may deteriorate. Further, when the outer case 1 or the outer case is present outside the outer case 1, the temperature of the outer case rises, which causes a problem of impairing safety for passersby. Further, there is a problem that the other components in the case 1 are also affected by heat.

In order to solve this, an easily conceivable means is to stir the insulating oil with a pump, a fan or the like, or to cool it with a forced cooling means such as air cooling or water cooling.

However, in order to realize these, a separate power supply is required, and there is a problem that the energy efficiency of the static induction device is lowered.

It is an object of the present invention to obtain a stationary induction device which utilizes the heat of the target stationary induction device to generate electricity and can cool the stationary induction device with the generated output.

[0011]

SUMMARY OF THE INVENTION The present invention is directed to a stationary induction device in which a stationary induction device body is housed in a case together with insulating oil.

In the static induction device of the present invention, a temperature difference power generation element for generating power by the temperature difference between the heat of the high temperature part of the static induction device and a temperature lower than it, and it operates by the electric power generated by the temperature difference power generation device. Cooling means for cooling the insulating oil and the stationary induction device body.

With this configuration, the heat of the target static induction device is used to generate power by the temperature difference power generating element, and the power generation output drives the cooling operation means to cool the static induction device. be able to. According to this configuration, when the static induction device has a large amount of heat generation and the temperature difference between the heat of the high temperature part and the temperature lower than that is large, the generated power of the temperature difference power generation element also increases, and the temperature of the cooling operation means is increased. If the operating energy increases, the cooling efficiency increases, and if the temperature difference is small, the power generated by the temperature difference power generation element also decreases, the operating energy of the cooling operating means decreases, the cooling efficiency decreases, and the cooling ratio is extremely rational. It can be performed. Further, when the temperature difference power generation element is used as a power source, cooling can be performed without lowering the energy efficiency of the stationary induction device.

Further, in the present invention, it is preferable that the cooling operation means is constituted by a pump which is connected to a bypass passage connecting the high temperature part and the low temperature part of the case and circulates the insulating oil in the case.

According to such a pump, the insulating oil in the case can be efficiently circulated to cool the insulating oil and the stationary induction device body.

Further, in the present invention, it is preferable that the cooling operation means is constituted by an in-oil fan that agitates the insulating oil in the case.

According to such an in-oil fan, it is possible to efficiently stir the insulating oil in the case and cool the insulating oil and the stationary induction device body.

Further, in the present invention, the heat transfer member for transmitting the temperature from the high temperature part of the case is connected to the high temperature part of the temperature difference power generating element, and the low temperature part of the temperature difference power generating element receives the temperature from the low temperature part of the case. A heat transfer member is preferably connected.

According to this structure, the temperature difference power generating element is placed at a required position, the temperature is transmitted from the high temperature part of the case by the heat transfer member, and the temperature is transmitted from the low temperature part of the case by the heat transfer member to generate power. can do.

Further, in the present invention, the high temperature part of the temperature difference power generating element is connected with the heat transfer member for transmitting the temperature collected by the high temperature heat collecting body arranged in the high temperature part in the insulating oil, and the temperature difference power generating element is connected. It is preferable that a heat transfer member that transmits the temperature collected by the low temperature heat collecting body disposed in the low temperature portion of the insulating oil is connected to the low temperature portion.

According to this structure, the high temperature heat collecting body arranged in the high temperature portion of the insulating oil absorbs heat and guides the temperature to the high temperature portion of the temperature difference power generating element through the heat transfer member, and the insulating oil It is possible to guide the temperature collected by the low-temperature heat collecting body arranged in the low-temperature section inside to the low-temperature section of the temperature-difference power-generating element via the heat transfer member, so that the temperature-difference power-generating element can efficiently generate power.

Further, in the present invention, the temperature difference power generating element is arranged in insulating oil, and the high temperature part of the temperature difference power generating element collects the temperature collected by the high temperature heat collecting body arranged in the high temperature part in the insulating oil. It is preferable that the heat transfer member is connected and the low temperature part of the temperature difference power generation element is arranged in the low temperature part in the insulating oil.

According to this structure, since the temperature difference power generation element is arranged in the insulating oil, it is possible to cover the weakness of the temperature difference power generation element in the moisture resistance. In addition, the high temperature heat absorber arranged in the high temperature portion of the insulating oil collects heat and guides the temperature to the high temperature portion of the temperature difference power generating element through the heat transfer member, and the temperature difference power generating element is placed in the low temperature portion of the insulating oil. Since the low temperature part is disposed, the temperature difference power generation element can efficiently generate power.

Further, in the present invention, it is preferable that the high temperature portion of the temperature difference power generating element is connected to the high temperature portion of the case, and the low temperature portion of the temperature difference power generating element is in contact with the outside air.

According to this structure, the heat of the high temperature portion of the case is not dissipated and is transferred to the high temperature portion of the temperature difference power generating element, so that the power generation can be efficiently performed by the temperature difference from the outside air.

Next, the present invention is directed to a stationary induction device in which the main body of the stationary induction device is housed in a case together with insulating oil, and the case is housed in an outer box.

In the stationary induction device of the present invention, a temperature difference power generating element for generating power by the temperature difference between the heat of the high temperature part of the case and a temperature lower than that, and insulation by operating with the power generated by the temperature difference power generating element. Cooling means for cooling the oil and the stationary induction device body.

According to such a stationary induction device, the heat of the target stationary induction device is used to generate power by the temperature difference power generation element, and the cooling operation means is driven by the generated output to drive the stationary induction device. The equipment can be cooled. Also in the case of this configuration, when the calorific value of the stationary induction device is large and the temperature difference between the heat of the high temperature part and the temperature lower than that is large, the power generated by the temperature difference power generation element also becomes large, and the cooling operation means If the operating energy increases, the cooling efficiency increases, and if the temperature difference is small, the power generated by the temperature difference power generation element also decreases, the operating energy of the cooling operating means decreases, the cooling efficiency decreases, and the cooling ratio is extremely rational. It can be performed. Further, when the temperature difference power generation element is used as a power source, cooling can be performed without lowering the energy efficiency of the stationary induction device.

Further, in the static induction device of the present invention, a temperature difference power generation element for generating power by the temperature difference between the heat of the high temperature part of the outer box and a temperature lower than that, and the power generated by the temperature difference power generation element are operated. And a cooling actuation means for cooling the insulating oil and the stationary induction device body.

According to such a stationary induction device, the heat of the high temperature part of the outer box is used to generate power by the temperature difference power generation element, and the power generation output drives the cooling operation means to drive the stationary induction device. Can be cooled. Also in this configuration, if the static induction device generates a large amount of heat and the temperature difference between the heat of the high temperature part of the outer box and the temperature lower than that is large, the power generated by the temperature difference power generation element also increases and When the operating energy of the operating means increases and the cooling efficiency increases, and when the temperature difference is small, the power generated by the temperature difference power generating element also decreases, the operating energy of the cooling operating means decreases, the cooling efficiency decreases, and it is extremely rational. Cooling can be performed. Also,
When the temperature difference power generation element is used as a power source, cooling can be performed without lowering the energy efficiency of the stationary induction device.

Further, in the static induction device of the present invention, the high temperature part is connected to the secondary bushing provided on the metal frame which supports the case in the outer box and the through conductor of the secondary bushing under the frame. In addition, a low-temperature part is connected to the pedestal, and a temperature-difference power-generating element for generating power by the temperature difference between the two, and a cooling operation means for operating with the electric power generated by the temperature-difference power-generating element to cool the insulating oil and the stationary induction device body. A structure including and may be used.

According to such a static induction device, under the secondary bushing provided on the pedestal, the temperature difference between the through conductor and the pedestal is utilized to generate power by the temperature difference power generating element, and the power generation output thereof. It is possible to drive the cooling operating means to cool the stationary induction device. Also in this configuration, when the calorific value of the static induction device is large, the generated power of the temperature difference power generation element is also large, the operating energy of the cooling operation means is large, the cooling efficiency is improved, and the calorific value of the static induction device is also large. Is small, the electric power generated by the temperature difference power generating element is also small, the operating energy of the cooling operating means is small, the cooling efficiency is lowered, and the cooling can be performed extremely rationally. Further, when the temperature difference power generation element is used as a power source, cooling can be performed without lowering the energy efficiency of the stationary induction device.

Further, in the stationary induction device of the present invention, the secondary bushing provided on the metal frame supporting the case in the outer box and the heat conducting member to the penetrating conductor of the secondary bushing under the frame are interposed. And a low temperature part are connected to the low temperature part of the outer box to generate electricity by the temperature difference between the two, and the temperature difference power generating device operates with the electric power generated by the temperature difference power generating device to operate insulating oil and stationary. It may be a structure including a cooling operation means for cooling the induction device body.

According to such a static induction device, power is generated by the temperature difference power generation element by utilizing the temperature difference between the through conductor and the low temperature portion of the outer box under the secondary bushing provided on the gantry. The stationary induction device can be cooled by driving the cooling operation means with the generated output. Also in this configuration,
If the calorific value of the stationary induction device is large, the power generated by the temperature difference power generation element is also large, the operating energy of the cooling operation means is large, the cooling efficiency is improved, and if the calorific value of the static induction device is small, the temperature difference is large. The power generated by the power generation element also decreases, and the operating energy of the cooling operation means decreases,
Cooling efficiency is lowered, and cooling can be performed extremely reasonably. Further, when the temperature difference power generation element is used as a power source, cooling can be performed without lowering the energy efficiency of the stationary induction device.

Further, in the stationary induction device of the present invention, it is preferable that the stationary induction device body is a transformer body of a ground-mounted transformer.

Since the ground-installed transformer is installed on the ground, it is possible to ensure safety for passers-by when it is cooled.

[0037]

1 is a vertical sectional view showing a first example of an embodiment of a stationary induction device according to the present invention.

In the stationary induction device of this example, the Peltier element 6 as a temperature difference power generating element for generating power by the temperature difference between the heat of the high temperature part of the case 1 and the temperature lower than it, and the power generated by the Peltier element 6 It is equipped with a cooling operation means 7 that operates in accordance with the above to cool the insulating oil and the stationary induction device body 2. In this example, the cooling actuating means 7 is constituted by a pump 9 which is connected to a bypass flow path 8 connecting the high temperature part and the low temperature part of the case 1 to circulate the insulating oil in the case 1. A heat transfer member 10a for transmitting the temperature from the high temperature portion of the case 1 is connected to the high temperature portion 6a of the Peltier element 6, and the low temperature portion 6 of the Peltier element 6 is connected.
The heat transfer member 10 that transfers the temperature from the low temperature part of the case 1 is shown in b.
b is connected. The heat transfer members 10a and 10b are copper,
It is composed of gold, silver, aluminum, tungsten, or the like.

In such a static induction device, the heat of the target static induction device is used to generate power by the Peltier element 6, and the power output is used to drive the cooling operation means 7 to generate the static induction device. Cooling can be done. In this case, when the calorific value of the stationary induction device is large and the temperature difference between the heat of the high temperature part and the temperature lower than that is large, the power generated by the Peltier element 6 also increases and the operating energy of the cooling operating means 7 increases. If the temperature is increased, the cooling efficiency is increased, and the temperature difference is small, the power generated by the Peltier element 6 is also decreased, the operating energy of the cooling operation means 7 is decreased, the cooling efficiency is decreased, and the cooling is performed extremely rationally. You can Also,
When the Peltier device 6 is used as a power source, cooling can be performed without lowering the energy efficiency of the stationary induction device.

If the cooling operation means 7 is constituted by a pump 9 that circulates the insulating oil in the case 1 by connecting to the bypass flow path 8 connecting the high temperature part and the low temperature part of the case 1, It is possible to efficiently circulate the insulating oil in the inside to cool the insulating oil and the stationary induction device body 4.

The heat transfer member 10 is connected to the high temperature part 6a and the low temperature part 6b of the Peltier element 6 from the high temperature part and the low temperature part of the case 1.
When the temperature is transmitted by a and 10b, even if the Peltier element 6 is placed at a required position, the temperature from the high temperature portion and the low temperature portion of the case 1 can be transmitted to generate power.

FIG. 2 is a vertical sectional view showing a second example of the embodiment of the stationary induction device according to the present invention.

In the stationary induction device of this example, the heat transfer for transmitting the temperature collected by the high temperature heat absorber 11a arranged in the high temperature part in the insulating oil to the high temperature part 6a of the Peltier element 6 as the temperature difference power generating element. The low-temperature heat absorber 1 is connected to the member 10a, and the low-temperature part 6b of the Peltier element 6 is arranged in the low-temperature part in insulating oil.
A heat transfer member 10b that transmits the temperature at which 1b has collected heat is connected. Other configurations are similar to those of the first example,
Corresponding parts are designated by the same reference numerals.

According to this structure, the high temperature heat absorber 11a arranged in the high temperature portion of the insulating oil collects heat and guides the temperature to the high temperature portion 6a of the Peltier element 6 through the heat transfer member 10a. Low temperature heat absorber 11b arranged in a low temperature part in insulating oil
It is possible to guide the collected temperature to the low temperature portion 6b of the Peltier element 6 via the heat transfer member 10b, and to efficiently generate electricity in the Peltier element 6. Therefore, the cooling operation means 7 can be driven by the power generation output of the Peltier element 6 to efficiently cool the stationary induction device.

FIG. 3 is a vertical sectional view showing a third example of the embodiment of the static induction device according to the present invention.

In the stationary induction device of this example, the Peltier element 6 as the temperature difference power generating element is arranged in insulating oil, and the high temperature portion 6a of the Peltier element 6 is a high temperature heat collecting element arranged in the high temperature portion in insulating oil. Heat transfer member 1 for transmitting the temperature collected by the body 11a
0a is connected, and the low temperature portion 6b of the Peltier element 6 is arranged in the low temperature portion in insulating oil. Other configurations are similar to those of the first example, and corresponding parts are designated by the same reference numerals.

According to such a configuration, the Peltier device 6
Is disposed in the insulating oil, it is possible to cover the weak moisture resistance of the Peltier element 6. Further, the high temperature heat absorber 11a arranged in the high temperature portion of the insulating oil collects the heat and guides the temperature to the high temperature portion 6a of the Peltier element 6 via the heat transfer member 10a, and the Peltier element is placed in the low temperature portion of the insulating oil. Since the low temperature part 6b of 6 is arranged, the Peltier device 6 can efficiently generate electric power.

The cooling operation means 7 is not limited to the pump 9 and may be an in-oil fan described later.

FIG. 4 is a vertical sectional view showing a fourth example of the embodiment of the static induction device according to the present invention.

In the static induction device of this example, the high temperature portion 6a of the Peltier element 6 as the temperature difference power generating element is connected to the high temperature portion of the case 1, and the low temperature portion 6b of the Peltier element 6 comes into contact with the outside air. There is. Other configurations are similar to those of the first example, and corresponding parts are designated by the same reference numerals.

With such a structure, the same effect as the first example can be obtained. In particular, in this example, the first example and the second
Since the heat transfer members 10a and 10b used in the example are omitted, the configuration can be simplified.

FIG. 5 is a vertical sectional view showing a fifth example of the embodiment of the static induction device according to the present invention.

In the stationary induction machine of this example, the cooling operation means 7 is composed of an in-oil fan 12 for stirring the insulating oil in the case 1. Accordingly, in this example, the bypass passage 8 and the pump 9 are omitted. Other configurations are similar to those of the first example, and corresponding parts are designated by the same reference numerals.

According to such a submerged fan 12, the insulating oil in the case 1 can be efficiently stirred to cool the insulating oil and the stationary induction device body 2.

FIG. 6 is a longitudinal sectional view showing a sixth example of the embodiment of the stationary induction device according to the present invention.

In the stationary induction device of this example, the case 1 is housed in the outer box 13. The case 1 is supported in the outer box 13 by a metal base 14 made of iron, stainless steel or the like. The mount 14 is provided with a secondary bushing 15 that connects the inside of the case 1 to the outside. The secondary bushing 15 has a structure in which the through conductor 15b penetrates through the porcelain bushing 15a. Other configurations are similar to those of the first example, and corresponding parts are designated by the same reference numerals.

With such a structure, the same effect as in the first example can be obtained. Particularly, in this example, the case 1 is the outer box 1
Since it is housed in the case 3, the case 1 having a higher temperature is not exposed and it is safe.

FIG. 7 is a vertical sectional view showing a seventh example of the embodiment of the stationary induction device according to the present invention.

In the static induction device of this example, the high temperature portion 6a of the Peltier element 6 as the temperature difference power generating element is connected to the high temperature portion of the outer box 13, and the low temperature portion 6b of the Peltier element 6 comes into contact with the outside air. ing. Other configurations are similar to those of the sixth example, and corresponding parts are designated by the same reference numerals.

With such a structure, the same effect as the sixth example can be obtained. In particular, in this example, since the heat transfer members 10a and 10b used in the sixth example are omitted,
The configuration can be simplified.

FIG. 8 is a vertical sectional view showing an eighth example of the embodiment of the static induction device according to the present invention.

In the stationary induction device of this example, the secondary bushing 15 provided on the metallic pedestal 14 supporting the case 1 in the outer box 13 and the secondary bushing 15 under the pedestal 14.
The high temperature portion 6a is connected to the through conductor 15b of
b is connected to the pedestal 14 to generate electric power by a temperature difference between the two, and a Peltier element 6 as a temperature difference power generating element and the electric power generated by the Peltier element 6 operate to cool the insulating oil and the stationary induction device body 2. The cooling operation means 7 is provided. The cooling operating means 7 is composed of a pump 9 connected to the bypass passage 8. Other configurations are similar to those of the sixth example, and corresponding parts are designated by the same reference numerals.

According to such a stationary induction device, the gantry 1
Under the secondary bushing 15 provided on the No. 4 Peltier device 6 by utilizing the temperature difference between the through conductor 15b and the pedestal 14.
Then, the stationary induction device body 2 can be cooled by driving the cooling operation means 7 with the generated power.

FIG. 9 is a vertical sectional view showing a ninth example of the embodiment of the stationary induction device according to the present invention.

In the stationary induction device of this example, the secondary bushing 15 provided on the metallic frame 14 supporting the case 1 in the outer box 13 and the secondary bushing 15 under the frame 14.
Through the heat transfer member 10a to the through conductor 15b of the high temperature portion 6a
Is connected and the low temperature part 6b is connected to the low temperature part of the outer box 13 to generate electricity by the temperature difference between the two, and a Peltier element 6 as a temperature difference power generating element, and the power generated by the Peltier element 6 operates to insulate And a cooling operation means 7 for cooling the oil and the stationary induction device body 2. The cooling operating means 7 is composed of a pump 9 connected to the bypass passage 8. Other configurations are similar to those of the sixth example, and corresponding parts are designated by the same reference numerals.

According to such a static induction device, the gantry 1
Under the secondary bushing 15 provided at 4, the Peltier element 6 generates power by utilizing the temperature difference between the through conductor 15b and the low temperature portion of the outer box 13, and the cooling operation means 7 is generated by the generated output. It can be driven to cool the stationary induction device body 2.

In each of the above examples, the Peltier element 6 is used as the temperature difference power generation element, but the present invention is not limited to this, and a Seebeck element or the like is also used as the temperature difference power generation element. be able to.

As the stationary induction device, the present invention can be applied to, for example, a ground-mounted transformer or a reactor. When the stationary induction device is a ground-mounted transformer, the stationary induction device body is the transformer body.

Also, in the stationary induction machines of the sixth example to the ninth example shown in FIGS. 6 to 9, the cooling fan 12 can be used as the cooling operation means 7 as in the example shown in FIG. .

As the cooling operation means 7, a cooling fan may be used to cool the outer surface of the case 1 or the outer box 13 by air cooling.

As the cooling operation means 7, a water pump may be used to flow cooling water on the outer surface of the case 1 or the outer box 13 or to blow it to cool it.

As a power source, a solar battery may be used in combination with a temperature difference power generating element.

The output of the power source composed of the temperature difference power generating element or the power source of the combination of the temperature difference power generating element and the solar cell is an electric device attached to the static induction device, for example, a detection power source of a hydrogen sensor, a corona measuring instrument. It can also be used as an amplifying power source of.

[0074]

According to the static induction device of the present invention, a temperature difference power generation element for generating power by a temperature difference between heat of a high temperature part of the static induction device and a temperature lower than that, and power generated by the temperature difference power generation device. Since it is equipped with a cooling actuation means that operates to cool the insulating oil and the body of the stationary induction device, the heat of the target stationary induction device is used to generate electricity with the temperature difference power generation element, and the generated output The stationary actuating device can be cooled by driving the cooling operation means. According to this configuration, when the static induction device has a large amount of heat generation and the temperature difference between the heat of the high temperature part and the temperature lower than that is large, the generated power of the temperature difference power generation element also increases, and the temperature of the cooling operation means is increased. If the operating energy increases, the cooling efficiency increases, and if the temperature difference is small, the power generated by the temperature difference power generation element also decreases, the operating energy of the cooling operating means decreases, the cooling efficiency decreases, and the cooling ratio is extremely rational. It can be performed. Further, when the temperature difference power generation element is used as a power source, cooling can be performed without lowering the energy efficiency of the stationary induction device.

If the cooling operation means is constituted by a pump that circulates the insulating oil in the case by connecting to the bypass flow path connecting the high temperature part and the low temperature part of the case, the insulating oil in the case can be circulated efficiently. Thus, the insulating oil and the stationary induction device body can be cooled.

Further, if the cooling operation means is constituted by an in-oil fan that stirs the insulating oil in the case, the insulating oil in the case is efficiently stirred and the insulating oil and the stationary induction device body are cooled. be able to.

A heat transfer member for transmitting temperature from the high temperature portion of the case is connected to the high temperature portion of the temperature difference power generating element, and a heat transfer member for transmitting temperature from the low temperature portion of the case is connected to the low temperature portion of the temperature difference power generating element. By connecting, the temperature difference power generation element can be placed at a desired position, the temperature can be transmitted from the high temperature part of the case by the heat transfer member, and the temperature can be transmitted from the low temperature part of the case by the heat transfer member to generate power.

Further, a heat transfer member for transmitting the collected temperature of the high temperature heat collecting body arranged in the high temperature portion in the insulating oil is connected to the high temperature portion of the temperature difference power generating element, and the low temperature portion of the temperature difference power generating element is connected to the low temperature portion. When a heat transfer member that conveys the collected temperature of the low temperature heat absorber placed in the low temperature part of the insulating oil is connected, the high temperature heat absorber placed in the high temperature part of the insulating oil will absorb the heat and transfer that temperature. It guides to the high temperature part of the temperature difference power generation element through the member, and guides the temperature collected by the low temperature heat absorber arranged in the low temperature part in the insulating oil to the low temperature part of the temperature difference power generation element through the heat transfer member. The power generation of the temperature difference power generation element can be efficiently performed.

Further, in the present invention, by disposing the temperature difference power generation element in the insulating oil, it is possible to cover the weakness of the moisture resistance of the temperature difference power generation element. Furthermore, the high temperature heat collector placed in the high temperature part of the insulating oil collects heat and guides the temperature to the high temperature part of the temperature difference power generating element via the heat transfer member, and the temperature difference power generating element of the temperature difference power generating element in the low temperature part of the insulating oil. By disposing the low temperature portion, the temperature difference power generation element can efficiently generate power.

Further, in the present invention, when the high temperature part of the temperature difference power generation element is connected to the high temperature part of the case and the low temperature part of the temperature difference power generation element is brought into contact with the outside air, the temperature of the high temperature part of the case is not released. It is possible to efficiently generate electricity due to the temperature difference between the high temperature portion of the differential power generation element and the outside air.

Next, in the type in which the case is housed in the outer box, a temperature difference power generating element for generating power by the temperature difference between the heat of the high temperature part of the case and a temperature lower than that, and the temperature difference power generating element are generated. When it is equipped with a cooling actuation unit that operates with electric power to cool the insulating oil and the stationary induction device body, the heat of the target stationary induction device is used to generate power with the temperature difference power generation element, and the power generation The output can drive the cooling actuating means to cool the stationary induction device. Also with this configuration, when the calorific value of the static induction device is large and the temperature difference between the heat of the high temperature part and the temperature lower than that is large, the power generated by the temperature difference power generation element also increases, and the operation of the cooling operation means operates. If the energy increases, the cooling efficiency increases, and if the temperature difference is small, the power generated by the temperature difference power generation element also decreases, the operating energy of the cooling operating means decreases, the cooling efficiency decreases, and extremely rational cooling is achieved. It can be carried out. Further, when the temperature difference power generation element is used as a power source, cooling can be performed without lowering the energy efficiency of the stationary induction device.

Further, a temperature difference power generating element for generating power by the temperature difference between the heat of the high temperature part of the outer box and a temperature lower than that, and an insulating oil and a static induction device operated by the power generated by the temperature difference power generating element. With a cooling operation means for cooling the main body,
It is possible to cool the stationary induction device by using the heat of the high temperature part of the outer box to generate power with the temperature difference power generation element and driving the cooling operation means with the power generation output. Even with this configuration, if the static induction device generates a large amount of heat and the temperature difference between the heat of the high temperature part of the outer box and the temperature lower than that is large, the power generated by the temperature difference power generation element also increases and the cooling operation is performed. The operating energy of the means increases, the cooling efficiency increases, and when the temperature difference is small, the power generated by the temperature difference power generation element also decreases, the operating energy of the cooling operation means decreases, the cooling efficiency decreases, and it is extremely rational. Can be cooled down. Further, when the temperature difference power generation element is used as a power source, cooling can be performed without lowering the energy efficiency of the stationary induction device.

In addition, the secondary bushing provided on the metal frame that supports the case in the outer box, and the high temperature part is connected to the through conductor of the secondary bushing under the frame and the low temperature part is connected to the frame. And a temperature difference power generation element for generating power by a temperature difference between the both, and a cooling operation means for operating the insulating oil and the stationary induction device body by operating with the electric power generated by the temperature difference power generation element, Under the secondary bushing provided on the gantry, the temperature difference between the penetrating conductor and the gantry is used to generate power by the temperature difference power generating element, and the power output is used to drive the cooling operation means to drive the stationary induction device. Can be cooled. Also with this configuration, when the calorific value of the stationary induction device is large, the generated power of the temperature difference power generation element is also large, the operating energy of the cooling operation means is large, the cooling efficiency is improved, and the calorific value of the static induction device is increased. When it is small, the electric power generated by the temperature difference power generating element is also small, the operating energy of the cooling operating means is small, the cooling efficiency is lowered, and the cooling can be performed extremely reasonably. Further, when the temperature difference power generation element is used as a power source, cooling can be performed without lowering the energy efficiency of the stationary induction device.

Further, the secondary bushing provided on the metal frame supporting the case in the outer box and the high temperature part are connected to the penetrating conductor of the secondary bushing under the frame via the heat transfer member. A low-temperature part is connected to the low-temperature part of the outer box to generate electric power by the temperature difference between the two, and a cooling for cooling the insulating oil and the stationary induction device body by operating with the electric power generated by the temperature-difference power generating device. And a temperature difference generator between the through conductor and a low temperature portion of the outer box under the secondary bushing provided on the frame,
The stationary induction device can be cooled by driving the cooling operation means with the generated power output. Also with this configuration, when the calorific value of the stationary induction device is large, the generated power of the temperature difference power generation element is also large, the operating energy of the cooling operation means is large, the cooling efficiency is improved, and the calorific value of the static induction device is increased. When it is small, the electric power generated by the temperature difference power generating element is also small, the operating energy of the cooling operating means is small, the cooling efficiency is lowered, and the cooling can be performed extremely rationally. Further, when the temperature difference power generation element is used as a power source, cooling can be performed without lowering the energy efficiency of the stationary induction device.

When the stationary induction device body is the transformer body of the ground-mounted transformer, the ground-mounted transformer is installed on the ground, and therefore, it is necessary to ensure safety for passers-by when cooled. You can

[Brief description of drawings]

FIG. 1 is a first embodiment of a stationary induction device according to the present invention.
It is a longitudinal cross-sectional view showing an example.

FIG. 2 is a second embodiment of the static induction device according to the present invention.
It is a longitudinal cross-sectional view showing an example.

FIG. 3 is a third embodiment of the static induction device according to the present invention.
It is a longitudinal cross-sectional view showing an example.

FIG. 4 is a fourth embodiment of the static induction device according to the present invention.
It is a longitudinal cross-sectional view showing an example.

FIG. 5 is a fifth embodiment of the static induction device according to the present invention.
It is a longitudinal cross-sectional view showing an example.

FIG. 6 is a sixth embodiment of the static induction device according to the present invention.
It is a longitudinal cross-sectional view showing an example.

FIG. 7 is a seventh embodiment of the static induction device according to the present invention.
It is a longitudinal cross-sectional view showing an example.

FIG. 8 is an eighth embodiment of the static induction device according to the present invention.
It is a longitudinal cross-sectional view showing an example.

FIG. 9 is a ninth embodiment of the stationary induction device according to the present invention.
It is a longitudinal cross-sectional view showing an example.

FIG. 10 is a vertical cross-sectional view of a conventional static induction device.

[Explanation of symbols]

1 case 2 Stationary induction device body 3 radiator 3a, 3b oil passage 4 iron core 5 coils 6 Peltier element (temperature difference power generation element) 6a High temperature part 6b Low temperature part 7 Cooling operating means 8 bypass channels 9 pumps 10a, 10b heat transfer member 11a High temperature heat absorber 11b low temperature heat absorber 12 Oil fan 13 outer box 14 mounts 15 Secondary bushing 15a Insulator 15b conductor

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hiroshi Takai             2-11-1, Tagawa, Yodogawa-ku, Osaka-shi, Osaka             Daihen Co., Ltd. F-term (reference) 5E050 AA10 CA00

Claims (12)

[Claims] 1. A static induction device in which a main body of the static induction device is housed together with insulating oil in a case, the temperature at which power is generated by a temperature difference between a heat of a high temperature part of the static induction device and a temperature lower than that. A static induction device comprising: a differential power generation element; and a cooling actuation unit that operates with the electric power generated by the temperature differential power generation element to cool the insulating oil and the stationary induction device body. 2. The static induction device according to claim 1, wherein the cooling operation means is a pump that circulates the insulating oil in the case by connecting to a bypass flow path connecting a high temperature part and a low temperature part of the case. . 3. The stationary induction device according to claim 1, wherein the cooling operation means is an in-oil fan that agitates the insulating oil in the case. 4. A heat transfer member for transmitting the temperature from the high temperature portion of the case is connected to the high temperature portion of the temperature difference power generating element, and the temperature is transmitted from the low temperature portion of the case to the low temperature portion of the temperature difference power generating element. The stationary induction device according to claim 1, 2 or 3, wherein a heat transfer member is connected. 5. A heat transfer member for transmitting a temperature collected by a high temperature heat collecting body arranged at a high temperature portion in the insulating oil is connected to a high temperature portion of the temperature difference power generating element, The static induction device according to claim 1, 2 or 3, wherein a heat transfer member that transmits a temperature collected by a low temperature heat absorber arranged in the low temperature portion of the insulating oil is connected to the low temperature portion. 6. The temperature difference power generation element is arranged in the insulating oil, and a high temperature part of the temperature difference power generation element collects a temperature collected by a high temperature heat collecting body arranged in a high temperature part of the insulating oil. The static induction device according to claim 1, 2 or 3, wherein a heat transfer member for transmission is connected, and the low temperature part of the temperature difference power generation element is arranged in a low temperature part in the insulating oil. 7. The high temperature part of the temperature difference power generation element is connected to the high temperature part of the case, and the low temperature part of the temperature difference power generation element is in contact with the outside air.
The stationary induction device described in. 8. The stationary induction device main body is housed together with insulating oil in a case, and the case is a stationary induction device housed in an outer box, wherein the heat of a high temperature part of the case and a temperature lower than that. Stationary induction device including a temperature difference power generation element that generates power at a temperature difference of 1 and a cooling operation unit that operates with the power generated by the temperature difference power generation element to cool the insulating oil and the stationary induction device body. . 9. The stationary induction device main body is housed together with insulating oil in a case, and the case is a stationary induction device housed in an outer box, wherein heat of a high temperature part of the outer box and a temperature lower than that. A static induction device including a temperature difference power generation element that generates power by a temperature difference between the temperature difference generation element and a cooling operation unit that is operated by the electric power generated by the temperature difference power generation element to cool the insulating oil and the stationary induction device body. machine. 10. The stationary induction device body is housed in a case together with insulating oil, and the case is a stationary induction device housed in an outer box, the metallic member supporting the case in the outer box. And a high temperature part is connected to a through conductor of the secondary bushing under the frame and a low temperature part is connected to the frame under the frame to generate electricity by a temperature difference between the two. A static induction device comprising: and a cooling operation unit that operates with the electric power generated by the temperature difference power generation element to cool the insulating oil and the static induction device main body. 11. A stationary induction device body in which a stationary induction device body is housed together with insulating oil in a case, and the case is housed in an outer box, the metallic device supporting the case in the outer box. Of the secondary bushing, and a high temperature part is connected to a through conductor of the secondary bushing under the frame via a heat transfer member and a low temperature part is connected to a low temperature part of the outer box. A static induction device comprising: a temperature difference power generation element that generates power by a temperature difference; and a cooling operation unit that operates with the electric power generated by the temperature difference power generation element to cool the insulating oil and the stationary induction device body. 12. The static induction device body is a transformer body of a ground-mounted transformer.
Stationary induction device described in one.