FOR POWER TRANSFORMERS:
T60004-L2040-W433 (T60004L2040W433). For the supply of electrical devices and equipments in the
industrial range today almost exclusively switched mode power supplies, which
supply one or more DC output voltages, are used. Different converter principles
are in use, depending upon the power range .
Flyback converters (to approx. 500 W),
single ended forward transformers (to approx. 1000 W)
push-pull converters (up to the kW range) are common.
Particularly for push-pull converters, toroidal tape-wound
cores made of the nanocrystalline material VITROPERM are recommended.
Advantages over ferrites are achieved by the substantially higher induction
swing (high Bs) in connection with low hysteresis losses: lower weight, smaller
volume, higher efficiency and an extended temperature range (to 120 °C) with
negative coefficient. The advantages mentioned are the more distinctive, the
larger the transferred power is.
Main fields of application are (particularly apart from the
power supplies of medium power) kilowatt power supplies for traction
applications, e.g. battery chargers, frequency converters or solar inverters.
Additional fields of application are within almost all ranges of industrial
power supplies in the KW range, where increasingly IGBT technology is used.