JPS6349043Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a protective device for transporting gas-insulated electrical equipment that enables suitable transportation of gas-insulated electrical equipment.

Generally, when transporting gas-insulated electrical equipment such as gas-insulated busbars, transport is carried out by dividing the equipment into appropriate sizes in consideration of economical loading onto trailers, trucks, etc. and transportation restrictions. Each of the divided parts is conventionally fitted with a protective lid made of mild steel to cover the divided points, which are exposed to the atmosphere. That is, an insulating spacing piece equipped with a contactor is attached to the container, and a cap-shaped protective lid or a flat protective lid made of mild steel is also attached to the divided portion. However, this protective lid made of mild steel is heavy and increases the overall weight including the gas-insulated electrical equipment during transportation, which is economically disadvantageous. Furthermore, when installing and removing the protective cover, a special lifting device such as a tow truck is required. Furthermore, since the conductor inserted into the container during transportation comes into direct contact with the protective lid, there is a risk that the conductor will be damaged. To prevent this, it is necessary to insert a soft support between the conductor and the protective cover.

The present invention was developed in consideration of the above problems, and aims to provide a protective device for transporting gas-insulated electrical equipment that is lightweight, prevents damage to conductors during transportation, and is easy to install. .

In order to achieve the above object, the present invention provides a protective device for transporting gas-insulated electrical equipment in which a spacing piece is attached to one end of the container and one end of the conductor is insulated and supported by the spacing piece. Attach a protective lid made of synthetic resin that protrudes the other end of the conductor to one side opposite to the spacing and supports it inside the tube into which the end of the conductor fits, and attach another protective lid to the side of the spacing piece opposite to the conductor. There is. As a result, the protective cover can be easily attached and detached, and the overall weight including the gas-insulated electrical equipment can be reduced, and damage to conductors and the like can be prevented.

An embodiment of the present invention will be described below with reference to the drawings. In this embodiment, a gas insulated bus bar will be used as the gas insulated device. An insulating spacing piece 2 is airtightly attached to one end of the container 1. The spacing piece 2 is provided with a contact 3, and insulates and supports one end of a conductor 4 which is inserted concentrically into the container 1 via the contact 3. The container 1, the spacing piece 2 and the conductor 4 form an assembly, transportation and installation unit. That is, the end of the container 1 on the opposite side to the spacer piece 2 and the end of the spacer piece 2 on the side opposite to the container 1 become the divided parts 5a and 5b, respectively. Furthermore, a cap-shaped protective lid 8 made of synthetic resin that supports one end of the conductor 4 is attached to the end of the container 1 in an airtight manner. The protective lid 8 includes a tube portion 7 that protrudes toward the side opposite to the spacing piece 2 and into which the end portion of the conductor 4 is fitted. In other words, the conductor 4 is supported at both ends by the spacing piece 2 and the protective cover 8. On the other hand,
A flat protective cover 9 made of synthetic resin is airtightly attached to the end of the spacer piece 2.

In this state, the air in the container 1 is degassed and replaced with insulating gas, and the unitized gas insulated bus bar is transported.

Next, the effects of the configuration of this embodiment will be explained. In this embodiment, since the protective covers 8 and 9 are made of synthetic resin, the weight of the entire gas insulated bus bar can be reduced. This allows for economical loading onto trailers, trucks, etc. during transportation. Furthermore, during assembly and installation, the protective covers 8 and 9 can be easily attached and detached, eliminating the need for a dedicated lifting device such as a tow truck. After removing the protective covers 8 and 9, a gas insulated bus is assembled by connecting a plurality of unitized gas insulated busbars and filling them with several atmospheres of insulating gas. Furthermore, since the protective covers 8 and 9 are airtightly attached to the end of the container 1 and the end of the spacing piece 2, respectively, there is no risk of dust entering and adhering to the container 1 or damaging the conductor 4. Also, there is no risk of dust or the like entering the contactor 3. This makes it possible to completely prevent a decrease in reliability due to dust or the like on the gas insulated bus bar.
Therefore, when transporting the unitized gas insulated bus bar, there is no need to purposely replace the air in the container 1 with insulating gas. Since the conductor 4 is supported at both ends by the spacing piece 2 and the protective cover 8, it has excellent earthquake resistance, the deflection of the conductor 4 is minimized, and no undue stress is applied to the insulating spacing piece 2. Moreover, the support of the conductor 4 by the protective cover 8 is limited to the tube portion 7 into which the end of the conductor 4 is fitted.
Therefore, there is no risk that the conductor 4 will be damaged by the protective cover 8, and there is no need to insert a support between the two.

As explained above, in the present invention, a spacer piece is attached to one end of the container 1, and the spacer piece insulates and supports one end of the conductor. A protective cover made of synthetic resin was installed to protrude the other end of the conductor to one side opposite to the spacing and supported by a tube into which the end of the conductor fits inside, and another protective cover was attached to the side of the spacing piece opposite to the conductor. ,
It is possible to provide a protective device for transporting gas-insulated electrical equipment that has excellent assembly, transportation, and installation performance, and has improved reliability of conductors, spacers, etc.

[Brief explanation of the drawing]

The drawing is a sectional view of a gas-insulated bus bar transportation protection device showing an embodiment of the present invention. 1... Container, 2... Spacing piece, 3... Contact, 4
...Conductor, 5a, 5b...Divided part, 7...Pipe part,
8, 9...Protective lid.

Claims (1)

[Scope of utility model registration request] A conductor is inserted concentrically into a container, and one end of the conductor is insulated and supported by a spacing piece airtightly attached to one end of the container to protect gas insulated electrical equipment during transportation. A first protective lid made of synthetic resin is airtightly attached to the other end of the container and supports the other end of the conductor, and a second protective cover made of synthetic resin is airtightly attached to the side opposite to the conductor of the spacing piece. A protective device for transporting gas-insulated electrical equipment, characterized in that the first protective lid has a tube portion that protrudes to one side at a distance from the other side and into which the end portion of the conductor is fitted.