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 Autotransformer with module core for vertical mountingDAM 25 - 630kVA according to IEC/DIN EN61558-2-13

3 phase transformer according to EN61558-2-13. 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 BGV A3. Connection bolts are used for currents > 520 A.

Autotransformers are provided for a voltage range from 100 V up to 550 V (special voltage versions on request).

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3 Phase Autotransformer, horizontal mounting version with screw type terminalsDAL 2.0 - 5.0kVA according to IEC/DIN EN61558-2-13

3 phase transformer according to EN61558-2-13. 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 BGV A3.

Autotransformers are provided for a voltage range from 100 V up to 550 V (special voltage versions on request).
Standard switching matrix: Yan0 (typical star load approx. 10%). If typical star load should reach rated current, switching matrix Zan0 is used.

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3 Phase Autotransformer, horizontal mounting version with screw-type terminalsDAL 5.0 - 35kVA according to IEC/DIN EN61558-2-13

3 phase transformer according to EN61558-2-13, 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 BGV A3.

Autotransformers are provided for a voltage range from 100 V up to 550 V (special voltage versions on request!).
Standard switching matrix: Yan0 (typical star load approx. 10%). If typical star load should reach rated current, switching matrix Zan0 is used.

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1AC Isolating Transformer with Static Shielded Winding / Slim design suitable for DIN rail mountingsTTHN 0.063 - 0.26kVA according to IEC/DIN EN61558-2-4

Extreme slim design for space-saving applicationsSpecial winding construction (1 chamber with shielded winding between PRI and SEC) allows excellent attenuation of mains failures (symmetric/ asymmetric) in SEC circuit.
Shielded winding delivery status: Common grounding connected to transformer core.
Standard voltages: PRI 230 V and SEC 230 V.
Voltage range PRI 100 V – 600 V and SEC 12 – 400 V on request.

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3 Phase Autotransformer including wall mountable housing – degree of protection IP55DAW 0.1 - 25kVA according to IEC/DIN EN61558-2-13

3 phase autotransformer according to IEC/EN61558-2-13 for general applications without the need of a galvanic isolation, e.g. for transforming typical mains voltage to other voltages needed by tools, machinery or other devices.

Autotransformers do not provide any electrical protection due to the lack of galvanic isolation between input and output windings.

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