Gas Insulated Switchgear

NCIT - the Technology for Gas Insulated Switchgear

by Holger Heine and Patrice Guenther, Siemens, Germany and Farel Becker, Siemens Industry, USA

Different solutions for non-conventional instrument transformers have been developed in the last decade and are now available for HV gas insulated switchgear. Manufacturers have integrated Rogowski coil into high voltage GIS for current measurement and capacitive principle for voltage measurement. The article describes NCIT technologies, integration in high voltage gas insulated switchgear (GIS), benefits and qualification processes with customer/utilities, which lead to reliably and accepted products.  More

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