three-phase transformers from 40 kVA to 225 kVA

three-phase transformers with cooling channels
three-phase power dry transformers
three-phase isolation transformers
datasheet as PDF-File

applications

Isolation transformer according to IEC/EN61558-2-4 for general purpose, e.g. for safe isolation of devices according to VDE0700/EN60335, or as a distribution transformer to build TN-netsystems. Useable for potential free net, for test systems or as power-ratio transformers.

description

Three-phase transformer, built as an isolation transformer according to EN61558 2-4, prepared for safety class I. It is possible to build each transformer in this family in each vector group. Is no vector group mentioned, we use group Dyn5. (star point can have full load from outside conductor).
Please have a look on the difference between outside conductor voltage (voltage phase to phase) and voltage phase to star point at the different vector groups. The mounting must be done in a way, that a convection through the cooling channels is possible.
For safe and easy transportation, the transformers have crane hooks at the upside.
The block terminals are contact safe according to VBG4. With our impregnation under vaccum, the transformers have a very low hum-noise.

table