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

Water-cooled transformersliquid cooled transformer as liquid cooled autotransformer or isolating transformer according IEC/DIN EN61558-2-13 and IEC/DIN EN61558-2-4

Applications
Liquid-cooled transformers of the Schmidbauer WKT series are excellently suited for water-cooled inverter technology. A potential-free water cooling simplifies water cooling in the entire system.
Description
The input voltage is 3x 400V at 50 / 60Hz and can be customized.

The number of cooling circuits, the prescribed water inlet pressures and water temperatures depend on the mode of operation and the characteristics of the load.

 

 

 

 

 

 

Liquid cooled transformers WKT
according IEC/DIN EN61558-2-13 bzw. IEC/DIN EN61558-2-4

Input voltage
3 x 400V (different voltages are possible)

Frequency
50/60 Hz (higher frequency´s are possible)

Power
20 – 2500kVA

Pressure of liquid
max. 6 bar

Construction secondary
switching group: Dyn5

Protection class (prepared)
I

Degree of production
IP00

Electrical connection
screw terminal

Connection cooling circuit
connector1/2″,  1/4″ …

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3 Phase Isolating Transformer / Vertical mounting versionDTS 0.1 - 2.0kVA according to IEC/DIN EN61558-2-4

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). For further information, don´t hesitate to contact us!

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3 Phase Isolating Transformer / Vertical mounting versionDTS 2.0 - 5.0kVA according to IEC/DIN EN61558-2-4

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.

Any switching matrix can be realized. 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).

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3 Phase Isolating Transformer / Vertical mounting versionDTS 5.0 - 35kVA according to IEC/DIN EN61558-2-4

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).

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3 Phase Isolating Transformer with Module Core; Vertical mounting versionDTM 25 - 630kVA according to IEC/DIN EN61558-2-4

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: Dyn5 (max. typical star load of phase current: 100%). Switching matrix: Please note the distinction between different voltages (e.g. phase voltage, line voltage). Final operation position must allow natural convection through coolant bores. For further information, don’t hesitate to contact us.

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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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