The electrical insulation system is key to the reliable functioning and long-term service life of electrical machines. If the insulation fails, this can have catastrophic consequences. You can always rely on Krempel electrical insulation materials. Even when under heavy strain and in adverse operating conditions, they function perfectly.
You’ll always have the right products on your side with Krempel’s reliable insulation technology, whether it’s system solutions for VPI (vacuum pressure impregnation) processes, or for resin rich technology.
Our solutions for high-voltage applications
- Mica tapes for main and partial conductor insulation
- Guide tapes as corona shielding for potential control
- Prepregs for coil and rod reinforcement and winding insulation
- Epoxy resin pastes for conductor smoothing
- Covering tapes for the coil cover in the winding head area
- Slot springs, slot wedges and other rigid materials for winding stabilisation
- Fixing cords, fabric and banding tapes for winding head bonding
The extensive portfolio covers all voltage and power ranges and offers custom-fit insulation solutions both for generators in single rod production (Roebel bars) and for high-voltage machines in coil production.
Engineering confidence is our core competency, in other words, we not only supply standard materials for series production, modernisation or repair, we are also there to support you with custom-fit solutions, especially when it comes to new developments that require the innovative strength of an experienced team. And that’s something no one else can imitate in a hurry – you can rely on our 150 years of expertise in insulation technology.
Generators in single rod production
Roebel bar in slot
Coil and Bar Consolidation
- Multi-Pregreg-System with epoxy resin for
insulation between parallel conductors,
also for shortened process times (TRIPREG-STABIL) - Polyester longitudinal non-woven with epoxy resin for fixing
the partial conductors on top of each other, also for shortened
process times (PREPREG ELBD)
Conductor Smoothening
- Electrically conductive epoxy resin mastic (KREMPEL-ERKITT)
- Electrically insulating epoxy resin mastic (KREMPEL-ISKIT)
Packing and Wedging
KREMPEL Slot Closure Springs
Electrically insulating slot closure springs for securing the rods and slot keys
Slot Keys
- WACOSIT®
- G-11, EPGC
- Magnetic slot closure keys
- KREMPEL Side Slot Springs
Electrically conductive side slot springs for lateral fixation and contacting of the generator rods
PREGNIT-R
Electrically conductive hard fabric for lateral contacting of the generator rods
High voltage machines in coil production
HV coil in slot
Packing/wedging for winding
Side and top ripple springs
- Pregnit GGBE-N11
- WACOSIT slot wedges
- Pregnit GGFE 2055
- Pregnit R
- End caps
High voltage machines in coil production
HV coil
Coil and bar reinforcement
- Multi-Pregreg-System with epoxy resin for
insulation between parallel conductors,
also for shortened process times (TRIPREG-STABIL) - Polyester longitudinal non-woven with epoxy resin for fixing the
the partial conductors on top of each other, also for shortened
process times (PREPREG ELBD)
Main Insulation
- Mica tapes for Resin-Rich technique
- Mica tapes for Vacuum-Pressure Impregnation
- Conductive nonwovens as external and internal corona protection
- End corona protection for potential control (EGS band)
End Winding Sealing
- Sealing tapes for Resin-Rich & VPI
Global Sales Energy
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August Krempel Söhne Vertriebsgesellschaft m.b.H
Marksteinergasse 13
1210 Wien
Austria
