Transformers

Transformers are among the key components for electrical engineering. Their task is to transform alternating input voltages into alternating output voltages.

The construction generally comprises of two windings on one, two or three coils. The coils are wound with copper or aluminium wire or tape. The wound coils are mounted onto metal or ferrite cores. The ratio between input and output voltages corresponds to the ratio of the number of windings on each coil.

The following are examples of a multitude of available transformer products.

Control transformers

Through their additional ±5 % tappings, control transformers equalise mains undervoltages and overvoltages and are able to suppress short circuit in case of malfunction to permit auxiliary circuits to function unearthed. A control transformer has two separate coils. Version sizes range from single-phased up to 25 kVA and multi-phased up to 40 kVA. Coil types are available in solder plug, clamp and bracket versions.

Safety transformers

Safety transformers output secondary low voltages for SEL and PELV circuits. A safety transformer has 2 separate coils which may not hold in excess of 50 VAC and 120 VDC when idling. Version sizes range from single-phase to 10 kVA and multi-phase up to 16 kVA. Coil types are available in solder plug, clamp and bracket versions.

Mains and isolating transformers

Mains transformers have the task of transforming input voltages to the required output voltages. A mains transformer has two separate coils. Version sizes range from single-phase to 1 kVA and multi-phase up to 5 kVA. Coil types are available in solder plug, clamp and bracket versions.

Isolating transformers transform mains voltages at 1:1 and perform, through their two coils, electrical separation, separating the earthing potential from the primary coil to the secondary coil. Version sizes range from single-phase to 25 kVA and multi-phase up to 40 kVA. Coil types are available in solder plug, clamp and bracket versions.

Single-phase and three-phase transformers

Powerful three-phase transformers have a similar construction to single phase transformers but their primary and secondary sides are comprised of three separate coils placed on a soft magnetic iron core. We produce transformers up to 1 MW.

Ignition transformers

We manufacture magnetic ignition transformers for oil and gas burners for domestic and industrial uses. Transformers are technically geared for reliable starting.

  • For high voltage up to 14.000 Volt
  • Encapsulated

TRANSFORMERS FOR WET LOCATIONS

For aquariums, ponds, swimming pools, and outdoor applications: Germfree water and and reliable illumination.

Encapsulated transformers

  • For highest requirements
  • Power output 4–2000VA
  • Protection class I and II
  • For protection category up to IP68

SPECIAL APPLICATIONS

We provide individual solutions, for example for the design of modules for special industrial demands.

  • High performance spools with metallic bobbin (at load of 20 K cycles in 24 hours)
  • Ignitors for special lamps for material testing devices (up to 15 kV at 25 A with continuous load)
Google Map of Waidplatzstraße 6–8 79331 Teningen-Nimburg, Germany

Manfred Schmelzer GmbH

  • Waidplatzstraße 6–8
  • 79331 Teningen-Nimburg, Germany