INSTRUMENT TRANSFORMERS GIS

Trench is a world leader in the design and manufacture of high voltage equipment on electric utility and high energy industrial systems. GIS current and voltage transformers are used to convert high transmission line 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.

MAINFEATURES

General Product Design Product processOptimized design to manufacturingLean manufacturing concept applied to the whole supply chainPartial discharge free design and processMaintenance free during a long life time of more then 30 yearsTrench Management System has been certifiedto ISO9001, ISO 14001 and BS OHSAS 18001Testing facilities are accreditated according toISO 17025

Instrument transformers acc. to IEC 61869, ANSI: IEEE C57.13, (others on request)Rated primary voltage 72,5 - 800 kVRated primary current up to 6000A

CT RATINGS:Rated secondary current of 1A, 2A or 5 ARated short time thermal current up to 80 kARated short circuit withstand up to 200 kAp

VT RATINGS:Maximum simultaneous burden in cl 0,2up to 200 VAMaximum simulteneous burden 0,3Z/0,15YThermal limiting output up to 2500 VA

Special tests are also available to meet specific customer requirements

72,5 kV - 800 kV - one phase design is availableup to 245 kV - both one phase and three phase designs SF6 insulationHousings acc. to international Pressure Vessel RegulationTerminal box protection degree IP55

For GIS current tranformers:245 kV and higher - core in air design available

For GIS voltage transformers:Integrated Isolation Device (IID) optional (manual or motor)Ferroresonance damping device - optional Up to 145kV BLUE (clean air) - optionalPower VT is available for all GIS voltage transformer types

Units for service for old GIS design starting from 60s on request.

PRODUCTSTRUCTURE

One phase Voltage Trasformer

with IID

One phase Voltage Trasformer

without IID

Core in air one phase

Current Trasformer

Three phase voltagetransformer with IID

Three phase voltagetransformer without IID

Core in gas three phase

Current Transformer

Three phase design up to 245 kv

One phase up to 800 kV

CA-000014-2021-03-EN

Trench Germany GmbHSE T NP BIC S EMEA TG OFM

Nuernberger Str. 19996050 Bamberg, Germany

Phone +49 951 1803-0

www.trenchgroup.com