Switchgear technology breakthrough from ABB

switchgear switchgear design ABB
Sponsored by

Switchgear: ABB has achieved a significant breakthrough in switchgear technology with the development of a solution that deploys a new insulation gas mixture as a substitute for sulfur hexafluoride (SF6). This alternate gas mixture has similar insulation properties as SF6 gas now used in switchgear, but can substantially lower environmental impact due to its extremely low global warming potential. ABB’s gas-insulated switchgear (GIS) with the new gas mixture has the potential to lower carbon dioxide equivalent emissions by up to 50 percent through the lifecycle of the equipment, compared to its predecessor with the same rating.

“This is a significant achievement and can pave the way for more eco-efficient switchgear in the years ahead,” said Bernhard Jucker, Head of ABB’s Power Products division. “It will enable our customers to lower environmental impact and is very much in line with ABB’s ongoing commitment to technology and innovation to enable power and productivity for a better world.”

For decades, SF6 gas has been used extensively in the electrical industry for dielectric insulation and current interruption due to its physical properties. Pressurized SF6 gas aids the safe and reliable operation of gas-insulated switchgear because it has a much higher dielectric strength than other insulation media, making it possible to significantly reduce the size of switchgear installations and enable installation in areas where space is at a premium. However, SF6 is a known greenhouse gas and moreover, its lifecycle management requires careful handling for utility and industrial users. The cost of managing it in a compliant manner can also be substantial, particularly when decommissioning aging substations.

The new technology will be deployed for the first time at a substation located in Oerlikon, Zürich, as a pilot installation for the leading Swiss utility, ewz. In addition to the 170 kilovolt (kV) high-voltage GIS, ABB will also install medium voltage GIS with the new gas mixture.

In a power system, switchgear is used to control, protect and isolate electrical equipment to boost the reliability of the electrical supply. With GIS technology, key components including contacts and conductors are protected with insulating gas. Compactness, reliability and robustness make it a preferred solution in urban areas and other places where space is a constraint or in harsh environmental conditions.

ABB pioneered high-voltage GIS in the mid-1960s and continues to drive its technology and innovation, offering a full range product portfolio with voltage levels from 72.5kV to 1,200kV. As a market leader in high-voltage GIS technology, ABB has a global installed base of more than 23,000 bays. The latest breakthrough will enable further reduction in carbon emissions without compromising efficiency and reliability.

For more information about ABB or other products, click here to go to Utility Products’ Buyers Guide.
 

Sponsored by

Most Popular Articles


CURRENT MAGAZINE ISSUE

October 2014
Volume 18, Issue 9
file

Utility Products Topics

Transmission & Distribution
                       Vehicles & Accessories
Tools & Supplies   Safety
Line Construction & Maintenance   Test & Measurement

WEBCASTS

There is no current content available.

UTILITY PRODUCTS BUYERS' GUIDE

POWER INDUSTRY JOBS

Industry Company Pages

Keep up-to-date with the latest news and articles from some of the prominent utility product companies and resources.

BUYER'S GUIDE PRODUCTS

Meter Socket Converter

AE Product’s Meter Socket Converter (CNV) converts various Meter Forms to fit the desired application. 14S, 15S or 16S Socket to accept 2S Meter. Optional features available.

Service Disconnect Adapter with Electronic Meter Energizing

AEP’s Service Disconnect Adapter disconnects customer load but maintains power to the electronic meter. The meter maintains reading and communications links for AMR/AMI operations while only disabling the load side.

Meter Socket Jumpers - Perfect for Submetering Applications

AEP’s Meter Socket Jumper offers a safe and easy means of bypassing a meter socket. The Socket Jumper can be used with either Ringless or Ring style Meters.