Pfiffner Instrument Transformers Ltd.     1927 Company founded by Emil Pfiffner 1936 First 220 kV cascade potential tranformer invented by E. Pfiffner 1947 Construction of the first cast resin transformer 1957 Acquisition of the company by Fritz Hunziker sen. 1975 First voltage transformer 123 kV 1975 - 1980 Launch of new generation of high voltage instrument transformers 1986 First delivery of 123 kV transformers with silicon composite insulators 1987 Take over of the management by Fritz Hunziker jun. 1989 Production start of high current transformers up to 50 kA 1994 ISO 9001 certification 1998 Certification of our test laboratories according to SN EN 45001, and as 1st private Swiss calibration entity for instrumental transformers 2001 Acquisition of MGC Moser-Glaser Ltd. successor company of Moser-Glaser & Cie. AG 2002 Setting to work of the new assembly and testing hall for Instrument transformers up to 420 kV 2003 ISO 14001 certification (environment) 2004 Set-up of Pfiffner Turkey, Ankara New plant inaugurated for MGC Moser-Glaser, Kaiseraugst 2006 Set-up of Pfiffner Brazil, Sao Paulo 2008 Beat Bertschi becomes Managing Director, Fritz Hunziker Delegate of the Board of Directors.             back