Gas-insulated electrical appliance
A technology for electrical equipment and gas insulation, which is applied in the installation of electrical components, switchgear, and switchgear with metal casings, etc., can solve the problems of increasing the cost of components, reduce cross-sectional area, suppress temperature rise, reduce The effect of small heat resistance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment approach 1
[0020] figure 1 It is a sectional view showing the gas-insulated electrical equipment according to Embodiment 1 of the present invention. exist figure 1 In this case, the electrically grounded pressure tank 1 is set so that the main body portion 31 is horizontal. In the upper part of the pressure tank 1, a pair of communication holes 3a, 3b which are a part of the pressure tank 1 are provided in order to provide a power connection part. A current transformer 32 for measuring current is provided outside the communicating holes 3a, 3b. In the pressure tank 1 , the vacuum valve 33 is provided with a gap between the main body part 31 and the body part 31 . The vacuum valve 33 is composed of the following components: a cylindrical vacuum container 34 formed of an insulating material; a fixed conductor 35 housed in the vacuum container 34 and disposed at one end; a movable conductor 36 that can be connected to the fixed conductor 35 or Separately set at the other end. The movab...
Embodiment approach 2
[0031] image 3 It is a cross-sectional view showing a power connection portion of the gas-insulated electrical equipment in Embodiment 2. In each figure, the same reference numerals denote the same or corresponding parts, and repeated descriptions are omitted. also, Figure 3 ~ Figure 6 Another example of the power connection part of Embodiment 1 is shown. image 3 The electric power connection part is comprised similarly to Embodiment 1, and a different point is demonstrated. In order to make the central conductor 11 and the pipe conductor 15 have the same potential, the leaf spring 16 b fixed to the central conductor 11 and made of elastic metal is in contact with the pipe conductor 15 . Thereby, the central conductor 11 and the pipe conductor 15 can be brought into the same electric potential without hindering the convection of the insulating gas in the space 13 .
Embodiment approach 3
[0033] Figure 4 It is a cross-sectional view showing a power connection portion of the gas-insulated electrical equipment in the third embodiment. The power connection unit is configured in the same manner as in Embodiment 1, and the different points will be described. A substantially hemispherical shroud 23 a having a vent hole 22 is disposed at both ends or at either end of the pipe conductor 15 . By arranging the shield 23a, the electric field at the end of the pipe conductor 15 can be relaxed. Furthermore, by providing the vent hole 22, convection through the gap 13 is not hindered. The shield 23a is made of metal or conductive resin. If the shroud 23 a has a structure that can be attached from a divided state, the insulating cylinder 7 and the center conductor 11 can be assembled out of the front and rear order of assembly. As in Embodiment 1, the central conductor 11 and the tube conductor 15 are electrically connected via the coil spring 16a. As in Embodiment 2, i...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More