Isolating and safety isolating transformersĭIN EN 60742 DIN EN 61558 IEC 742 (DIN VDE 0551 / 0570) Small power transformers, control transformersĭIN EN61558 IEC 14 D (DIN VDE 0550 / 0570) Transformers, reactors and power supply units have been produced in accordance with national and international regulations.ĭIN EN 61558 IEC 14 / 7 (DIN VDE 0532 / 0570) Dynamo sheets and grain orientated electro-sheets areused for the transformer cores. Principally we use enamelledcopper wires for high grade isolation.
This impregnation provides mechanical stability, protection against humidity and the highest insulation resistance. The electricalcoils are resin-impregnated and oven dried. Thermal classes: A (105☌), E (120☌), B (130☌), or F (155☌) The transformers are fabricated according to the insulation class E, if no other class is specified. The insulation materials are in accordance with the IEC 85 and IEC 216:Thermal resistance of insulating material. All Roller & Fischer products aresubjected to a 100% quality inspection. The QM systems include the examination ofall Q-elements from order input to the delivery of the devices.
#Transformer en 60742 iso
overallis structured according to the DIN EN ISO 9000 quality management system and is certifiedby the M-Zert according to DIN ISO 90001:2000. Today the wear life span of transformers and reactors is nearly unlimited in consequence to theuse of upgraded materials and highly qualified manufacturing.