JPH077737B2 - Assembly method for stationary induction device - Google Patents

Description

The present invention relates to a method of assembling a static induction device such as a transformer or a reactor, and particularly, the assembling is simple and the anti-seismic and soundproof effects are enhanced. The present invention relates to a method of assembling a static induction device.

(Prior Art) A schematic configuration of a conventional static induction device will be described with reference to FIG.

In a static induction device such as a transformer, a core body having a winding 2 wound around an iron core 1 is housed in a tank 3 and an insulating medium such as insulating oil or gas is sealed therein. The contents body is tank 3
When it is stored inside, the main body is lifted up using the hanging ears 4 provided on the upper part of the iron core frame, and the main body is stored inside the tank 3 from the upper part of the tank 3.

(Problems to be Solved by the Invention) However, in recent years, there has been a tendency for the weight of a device such as a transformer to increase and the size of the device to increase. As the equipment grows in size, a large-scale equipment such as a crane is required to lift the main body from the upper portion of the tank 3 into the tank 3 during assembly. In terms of height, it is necessary to lift the main body higher than the upper part of the tank using the ears in order to put the main body in the tank. Therefore, the lifting equipment must be considerably higher than the total height of the tank 3 and the main body. Moreover, the height of the building in the assembly work must be necessarily high.
Also, in terms of weight, the weight of the main body is tens of tons when the weight of the iron core 1, the winding 2, and other accessories are added together, which is a considerable weight. Needless to say, a large-scale wrecker or the like is also required, but when hoisting the contents body into the tank 3 by these and placing it in the tank 3 accurately, it is necessary for the operator to accurately position it. However, it requires a considerable amount of skill and skill, and it is a very inconvenient method for a very good worker and also for an assistant to confirm the position.

Further, as a second problem, vibration and noise generated from the equipment are transmitted through the tank, especially as the capacity of the equipment is increased and the rating is increased due to higher voltage. In particular, in order to suppress the vibration of such equipment, a sound insulating plate is attached to the inside or the outside of the tank 3, and a means for surrounding the entire equipment with a soundproof wall is required. The cost was enormous. In addition, it was important to secure the site and aesthetics required when installing the soundproof wall outside. In addition, when it is installed underground or indoors of a building, there is a demand for a device with less vibration because the size of the entire device is limited and the size of the entire installation site is limited.

In addition, as a third problem, when various vibrations applied during transportation for installing the equipment on site or vibrations such as an earthquake are applied, the main body resonates with the vibrations and vibrates greatly, and the support is broken. Moreover, the main body might fall down.

The present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to provide a method of assembling a static induction device that is easy to assemble and has excellent vibration and soundproofing effects. .

[Structure of Invention]

(Means for Solving the Problems) In order to achieve the above object, in the present invention, an assembly of a stationary induction device in which a main body of a coil wound around an iron core is housed and sealed in a tank together with an insulating medium. In the method, a cushioning / vibrating material such as rubber is attached to the lower portion of the content body, and a polymer material having a small coefficient of friction is further attached to the lower portion to form a device body, and the device body is provided on the bottom surface of the tank. After having been stored in the tank from the side surface of the tank by moving on a lateral track and a lateral track connected to the lateral track and provided on the outside of the tank,
It is characterized in that the insulating medium is enclosed in the tank.

(Function) The stationary induction device can be easily stored in the tank by contact movement of the polymer body with a small coefficient and the orbit of the main body, and the device is stable against vibration due to the cushioning / vibration-proof material such as rubber. It improves the sex.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. A winding 2 is wound around an iron core 1 to form a main body of contents such as a transformer, which is housed in the tank from a side wall 3'provided on the side of the tank 3. A shock-absorbing / seismic material 5 such as rubber is attached to the lower part of the frame of the iron core 1, and a polymer material such as Teflon (a product name of DuPont) having a small coefficient of mass is attached to the lower part of the iron body 1. To form. A lateral orbit 7 having a smooth surface such as stainless steel is provided at the portion where the iron core frame is located at the position where the device body is attached to the bottom of the tank 3.
Further, as shown in FIG. 2, a removable auxiliary track 8 is provided so as to be connected to the track 7 in a straight line outside the tank, and the seismic-proof material and the polymer material are mounted on the auxiliary track 8. Set the device body so that the core frame surface of the device body is located. After arranging like this,
The track 8, by pulling or pushing the device body,
7 Slide it up and move it to a fixed position in tank 3. The auxiliary track 8 is removed when it is placed in a fixed position and fixed. The main body is fixed and stored in the tank while the anti-vibration material and polymer material attached to the bottom of the iron core frame remain as they are between the equipment main body and the tank. After that, the insulating medium is sealed in the tank.

The weight of the device body in which the iron core and the winding are integrated is considerable, but after placing it on the auxiliary track 8, the coefficient of friction of the polymer material with respect to the 7th track is very small. It can be installed in a fixed position with a small force simply by sliding. Position adjustment is easy.

In addition, compared to loading from the top of the tank, it is not necessary to lift the equipment body higher than the height of the tank, so the lifting equipment is simplified, and the safety is improved and at the same time it slides on the track to a fixed position. Since it can be installed, it becomes very easy to adjust the installation position.

In addition, after attaching a vibration-proof material such as rubber to the lower part of the iron core frame, a polymer material is attached, so this rubber prevents the vibration and noise of the equipment from being transmitted to the tank, and the vibration-proof and sound-proof effect is excellent. Equipment is obtained.

Further, the vibration-proof rubber and the polymer material are prevented from directly transmitting the vibration to the coil even when the vibration is applied from the outside such as an earthquake or a vibration applied during transportation, and the vibration-proof effect is enhanced.

〔The invention's effect〕

As described above, according to the present invention, a shock absorbing / vibrating material made of rubber or the like is attached to the lower portion of the iron core frame, and a polymer material having a small coefficient of friction is further attached to the lower portion of the iron core frame. Since the horizontal track provided on the bottom and the side part connected to this can slide into the tank by sliding it on the auxiliary track provided in a straight line outside the tank, it is easy to store the device in the tank. Further, it is possible to obtain a method for assembling a stationary induction device having high vibration and soundproof effects.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 are a side view and a front view showing a stationary induction device according to the present invention, and FIG. 3 is a sectional view showing a conventional stationary induction device. 1 ... Iron core, 2 ... Coil, 3 ... Tank, 5 ... Anti-vibration rubber, 6 ... Polymer material, 7 ... Lateral orbit, 8 ... Auxiliary orbit

Claims (1)

[Claims] 1. A method of assembling a stationary induction device, comprising a hermetically-sealed core body, which comprises a coil wound around an iron core, and an insulating medium, which is hermetically sealed in a tank. Attach it, and further attach a polymer material with a small coefficient to the bottom to form the device body,
After the device body is stored in the tank from the side surface of the tank by moving it on a lateral track provided on the bottom surface of the tank and on an auxiliary track provided outside the tank that is connected to the lateral track. A method of assembling a stationary induction device, characterized in that the insulating medium is enclosed in the tank.