GIS INSTRUMENT MAIN FEATURES

Trench is a world leader in the design and manufacture of equipment on electric utility and high energy industrial systems. GIS current and voltage transformers are used to convert high currents (up to 6000 A) and voltages (up to 800 kV) to standardized low and easily measurable values, which are used for metering, protection and control of the high voltage system. As such, the need for accurate and reliable current and voltage transformation is essential. Our GIS current and voltage transformers are adaptable to any OEM specific requirement and adaptation to GIS switchgears.

General Product Design Product process

Instrument transformers acc. to IEC 61869, 72,5 kV - 800 kV - one phase design is available Optimized design to manufacturing ANSI: IEEE C57.13, (others on request) up to 245 kV - both one phase and three phase Lean manufacturing concept applied to the Rated primary voltage 72,5 - 800 kV designs whole supply chain Rated primary current up to 6000A SF6 insulation Partial discharge free design and process Housings acc. to international Pressure Vessel Maintenance free during a long life time of CT RATINGS: Regulation more then 30 years Rated secondary current of 1A, 2A or 5 A Terminal box protection degree IP55 Trench Management System has been certified Rated short time thermal current up to 80 kA to ISO9001, ISO 14001 and BS OHSAS 18001 Rated short circuit withstand up to 200 kAp For GIS current tranformers: Testing facilities are accreditated according to 245 kV and higher - core in air design available ISO 17025 VT RATINGS: Maximum simultaneous burden in cl 0,2 For GIS voltage transformers: up to 200 VA Integrated Isolation Device (IID) Maximum simulteneous burden 0,3Z/0,15Y optional (manual or motor) Thermal limiting output up to 2500 VA Ferroresonance damping device - optional Up to 145kV BLUE (clean air) - optional Special tests are also available to meet Power VT is available for all GIS voltage types specific customer requirements Units for service for old GIS design starting from 60s on request. PRODUCT STRUCTURE

Three phase design up to 245 kv

Core in Three phase voltage Three phase voltage gas three phase transformer with IID transformer without IID

One phase up to 800 kV

Core in One phase One phase air one phase Voltage Trasformer Voltage Trasformer Current Trasformer with IID without IID SE TNPBIC SEMEATGOFM www.trenchgroup.com 96050 Bamberg, Germany Trench Germany GmbH Phone +499511803-0 Nuernberger Str. 199

CA-000014-2021-03-EN