Haefely Test AG, a company of the group Pfiffner.
The market leader for high-voltage test equipments and systems.
– Tests systems for laboratory, production and on site
– Impulse voltage and current generators
– AC and DC HV test systems including resonant test systems
– Capacitance and tan δ measuring equipments
– Partial discharge detectors (including alternative for Robinson)
– Complete solutions for cables and transformers testing.
Haefely Test AG promotes also a range of products under the brandname of TETTEX.
The Swiss made precision since 1904 !