Special windings

The requirements for the insulation capacity of electric machines are becoming increasingly complex, as the fields of application are becoming more and more versatile and comprehensive. The company PARTZSCH Spezialdrähte e. K. specialises in the production of wires and insulations for common applications in the field of electrical engineering, but also offers individual wire insulations for special applications.

As a result, we have a wide range of special wires and windings available for you.

Closed-slot coils
Converter-compatible windings
High-temperature windings

Closed-slot coils

The product range of the PARTZSCH Group further includes coils in special designs, such as plug-in coils, still found in older machines. Regardless of their size, plug-in coils can be manufactured on the basis of drawings or the original winding using specially designed equipment. In addition, we produce windings with cranked end windings, available in angles of 90°, 45° and 0°. With these coils, single-layer windings can be produced in two- or three-range design.

Also, we can manufacture and deliver so-called pull-through windings upon request. Please do not hesitate to contact us for any queries regarding the feasibility of additional special windings.

Merken

Technical parameters
  • Up to size 1,500
  • Up to a weight of 14 tons
  • Up to a nominal voltage of 690 V
Machinery
  • 3 specially designed rolling devices
  • Own pressing machine for clamping

Converter-compatible windings

A topic of great current interest is the operation of motors with frequency converters. The insulation system of a converter-fed motor is subjected to particular stress as compared to the supply with sinusoidal voltages. In particular, the winding of machines with a rated voltage exceeding 400 V and supply via fast-switching voltage source converters can be subjected to extreme stress. For this type of application we have developed a special insulation technology which ensures safe insulation up to rated voltages of 690 V without limiting the slew rate through filter circuits.

Drives of machines equipped with this insulation technology offer higher efficiency, as losses in filters and chokes do not apply. As energy efficiency is a major concern these days, the PARTZSCH Group makes a significant contribution with this technology.

Merken

Technical parameters

Standard frequency converter-proof windings can be produced with the following parameters:

  • Average winding length up to 3.5 m
  • Up to size 800 maximum weight of 8 t
  • Additional winding types and larger dimensions and weights available upon request

High-temperature winding

Stator smoke venting motors

By removing smoke, smoke exhaust systems contribute to ensuring a safe escape and rescue of people in case of fire. Motors used in these applications are equipped with an insulation system that allows the operation of these installations at ambient temperatures up to 600 °C for the relevant period of time.

We have developed a suitable product series of 4-pole to 12-pole motors with sizes from 180 to 315.

Technical parameters motor series of the
F400 class (400 °C, 2 hours)
  • 4-pole motors from 15 kW to 110 kW
  • 6-pole motors from 11 kW to 110 kW
  • 8-pole motors from 7.5 kW to 90 kW
Technical parameters motor series of the
F600 class (600 °C, 1 hour)
  • 4-pole motors from 15 kW to 110 kW
  • 6-pole motors from 11 kW to 110 kW
  • 8-pole motors from 7.5 kW to 90 kW