Instrument Transformers

Pfiffner - A Leading Provider in the Electrical Power

PFIFFNER is a values-driven Swiss company with over 85 years of experience and an enormous amount of know-how long-lasting partnerships with customers and suppliers. A high level of vertical integration to control all key processes in-house. Swiss quality - from development right through to delivery Total customer satisfaction is our goal. With many years of experience and technical expertise we can provide the right solutions to meet all our customers’ needs. Wide range of instrument transformers for voltage levels up to 550 kV. Thanks to our strong presence in international markets and our close contact with customers. PFIFFNER – the symbol of unique quality with wide range of products insulated with oil-paper or SF6 offers our customers an optimal choice of high-quality instrument transformers with a long lifetime. As a result of continuous development in our R & D department, we can offer products with the latest and state-of-the-art design.

High Voltage
Instrument
Transformer

Wide range of products insulated with oil-paper or SF6 offers our customers an optimal choice of
high-quality instrument transformers with a long ifetime up to 550kV.

Current Transformers

• Oil-paper insulated
• Simple primary winding changeover
• Explosion-tested casing
• Fine-graded bushing
• Generously-sized terminal box

Voltage Transformers (Inductive, Capacitive)

• Oil-paper insulated
• Upgradable for the transmission of high-frequency signals
• No on-site adjustment is necessary

Combined Transformers

• Oil-paper insulated
• Guaranteed accuracy over entire service life
• Explosion-tested casing
• Fine-graded bushing
• Low space requirements for installation

Diagnosis Measurement System

Surge arresters for High Voltage applications up to 800 kV, SB series with porcelain housing, series SBK, SBKC and SBKT - three designs with silicone housing

Resistive Capacitive Voltage Divider

• Gas insulated
• Protection and measurement in high-voltage transmission
• Can be used for the measurement of mains quality