Bernard Bonnefond Est. In 1925. the Main Product is the Varivolt: an on Load Stepless Voltage Variation Transformer, from 30 to 30.000 Kva, Specially Used in Glass Industry, for Electric Furnace and Boosting; Turnover 13.5 M€ Export Sales more than 80%; other Products; I.V.R. (Induction Voltage Regulators) – from 30; Melting Technology for Tank Furnaces; Varivolt: on Load Stepless Variable Voltage Transformer; Electrically Heated Systems; Varivolt: on Load Stepless Variable Voltage Transformer, Electrical Fixtures, Metalworking Machines ...

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AC Voltage Withstand Test Instrument Features: 1) Endless variable inductance, can reach full resonance at any point within test r AC Voltage Withstand Test Instrument Set Features: 1) Cordwood module design, multi-level reactor 2) Test frequency: 30, 300Hz 3) ...