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Installation Device for High Voltage GIS Cable Terminations

IP.com Disclosure Number: IPCOM000248352D
Publication Date: 2016-Nov-17
Document File: 5 page(s) / 242K

Publishing Venue

The IP.com Prior Art Database

Abstract

This paper describes a device designed for installing GIS (Gas Insulation Switchgear) cable terminations such as those at 110kV, 220kV or higher voltage levels. It will make the installation process simpler and minimize worker injury due to the handling of heavy cable accessories.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 65% of the total text.

Page 01 of 5

Installation Device for High Voltage GIS Cable Terminations

This paper describes a device designed for installing GIS (Gas Insulation Switchgear) cable terminations such as those at 110kV, 220kV or higher voltage levels. It will make the installation process simpler and minimize worker injury due to the handling of heavy cable accessories.

Background

Installation of High Voltage (HV) cable accessories involves the handling of many heavy parts, particularly the cast-resin insulator of the GIS termination. This insulator is currently installed almost completely by hand, as shown in the pictures below.

Disadvantages of this installation method include:

1. Difficult in small spaces

2. Risk of injury to installers due to handling of heavy parts

3. High chance of damage to the cast-resin insulator, as shown in the following photo.

At high voltage levels (for example, 220kV and 500kV) the insulator is extremely heavy, and the likelihood of encountering these installation issues increases substantially.

The new installation tool has been design to address these problems.

Damage to insulator


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Description

The overall structure of the installation tool is shown in the drawing below.

 The tool panel has 2 pairs of grooves to accomodate insulators of different voltages levels (110kV and 220kV are shown). Each groove has an accompanying set of four bolt holes for securing the insulator.

For 220 kV accessory

For 110 kV accessory

Locking bolts

Limiting steps



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