Transformers

Schmidbauer manufactures a comprehensive range of transformers in standard and special designs.

Schmidbauer only selects high quality metal cores complying to DIN regulations. Depending on application requirements special metal alloys or module constructions are used.

By the way – both of our standard series and the special constructions fulfil national and international regulations.

The construction of isolation transformers with an output of up to 2.5 MVA with ultra-compact design and special solutions for specific applications are special features of our design and manufacturing know-how. High-frequency transformers, auxiliary transformers for medium-voltage stationary stations, power transformers and high-voltage transformers for both small and large capacities expand our production range. We manufacture transformers for different industries:

  • Machine building
  • photovoltaics
  • decentralised energy supply
  • wind energy
  • ship building
  • test engeneering
  • high electrical engennering
  • LED technology
  • Control enclosure
  • Industrial electronik
  • power electronic
  • automotive
  • high voltage

For larger power ratings bigger than 100KVA, aluminum transformers can be used. The aluminum transformers tested as autotransformers or isolating transformers are characterized by excellent efficiencies and significant cost reductions compared to conventional copper transformers. These are possible in the power range up to approx. 2.5 MW up to voltages of 6 KV. Transformers with integrated inductance are also developed and produced by Schmidbauer. We are happy to inform you.

Thus, we offer you a wide spectrum from small transformers or low-voltage transformers to customized transformers up to 2.5 MVA. These can be designed as water-cooled or air-cooled coils, as well.

Production with 3-axis controlled winding machines, including fully automated further processing, allows flexible production processes in transformer construction with consistently high quality and attractive unit costs.

NC-controlled systems and hand-winding machines for transformers in special designs supplement our automated production.

Automated core welding, vacuum sealing, Testing of every single unit produced.

  • NC controlled welding for cores complying with EI54 to EI195, including simultaneous welding of mounting brackets.
  • Vacuum sealing with synthetic resin system, insulation class F
  • Transformers e.g. in polyamide housings can be completely and automatically sealed with PU resin.
  • PC based testing are used to check every single transformer unit before leaving our production facilities (amperage, voltage, coil and insulation resistance, phase sequence, high-voltage tests).

Schmidbauer UR-Isolationssystem nach UL 1446 OBJY2.E181051

3 Phase Isolating Transformer; Horizontal mounting versionDTL 2.0 - 5.0kVA according to IEC/DIN EN61558-2-4

Typical applications
3 phase isolating transformer according to IEC/EN61558-2-4 for general applications, e.g. for providing electrical (galvanic) isolation according to VDE0700/EN60335 regulations or network supply transformer (e.g. TN network system).
Specifications
3 phase isolating transformer according to EN61558-2-4. protection class I ready. Due to innovative vacuum impregnation in polyester varnish, the noise level is extraordinary low. Screw terminals are contact proof according to VBG4.

Standard switching matrix: Yyn0 (max. typical star load of phase current: approx. 10%). Switching matrix: Please note the distinction between different voltages (e.g. phase voltage, line voltage).Final operation position must allow natural convection through coolant bore. For further information, don´t hesitate …

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1 Phase Control-/Isolating Transformer, Safety TransformerST 25-2500 VA IEC/DIN EN61558-2-2 /-4 /-6 and UL 1446

Due to the use of high quality insulating materials and special insulation design, ST series can be used as control-, isolating or safety transformer.
Our UL insulation system guarantees global application possibilities.
Inrush currents and short circuit behaviour are optimised for use with motor-circuit switches, especially equipped with primary circuit thermal or magentic switching functions.
Transformers are fully vacuum impregnated.

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1 Phase Control-/ Isolating-Transformer, Safety Transformer with spring clip terminals (screwless connection)STF 25 - 2500VA IEC/DIN EN61558-2-2 /-4 /-6 and UL1446

Ease-of use screwless connectors (top side wiring and fixing). Use a screwdriver to open spring clip mechanism.
Due to the use of high quality insulating materials and special insulation design, STF series can be used as control-, isolating or safety transformer.
Our UL insulation system guarantees global application possibilities.
Inrush currents and short circuit behaviour are optimised for use with motor-circuit switches, especially equipped with primary circuit thermal or magentic switching functions.

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