Powertech Calidus in association with long standing international partner Von Roll is involved in the development and improvement of existing insulation materials, systems and processes.
The increasing availability of reliable and efficient electronics has enabled manufacturers to develop converter-driven AC induction motors, currently both DC and inverter driven AC induction motors are in global production.
The insulation systems preferred by various manufacturers of traction motors may be categorized based on the machine type and the design of the main- wall insulation .
• The windings located on the rotor as in DC motors, or on the stator in AC motors.
• The various insulation systems may employ vacuum-pressure impregnation (VPI) or resin- rich (RR) technology
• The insulating resin may be based on silicone, unsaturated polyesterimide , epoxy or polyester .
There is a wide range of insulating materials based on motor specification available to meet the requirements of current traction motor designs that Powertech Calidus
offers .
Flat conductors
Powertech Calidus offers a complete range of high quality covered conductors for traction motor applications.
Flat conductors covered by :
Samicafilm
Samicatherm
Samicapor
Kapton
Daglass Polymide
Banding Tapes
Banding tapes act as bracing composites to enable the commutator and unsupported windings in DC motors to withstand high rotational and torque forces.
In addition to possessing thermomechanical endurance, the material must be able to withstand fatigue trends and variable loads due to varying working conditions:
Caliband H200
Caliband P30
Main Wall Insulation and Tapes
Powertech Calidus provides an outstanding range of VPI mica tapes that meet the requirements of mainwall and endwinding insulation ,including high dielectric strength , high thermal performance , corona discharge resistance , fast and easy impregnation , resin retention without draining , additionally crease free smooth application, manual and fast running machine application and full compatibility with predefined resin systems .
Insulation systems employing resin rich (RR) technology assures optimum quality through careful selection of the micaceous tape and detailed attention to the way the tape is applied and processed.
Main wall insulation tapes for traction for VPI and resin rich systems:
• Samicatherm
• Samicapor
• Samicafilm
• Conductive tapes
• Semi conductive tapes
• Kapton tapes
• Banding tapes
• Samicaflex
• Filosam
Flexible Materials
Powertech Calidus provides a wide range of constructions to satisfy any particular slot-liner thickness and maximize mechanical and thermal characteristics , additionally processed fitting is optimized.
• Commutator Samicanite
• Heat samicanite
• Flexible Samicanite
• Miglasil range
• Thermopreg
• Polyester Fleece
• Glasoflex
• Nomex-mica Nomex
• Hot moulding mica
• Pre-preg
• Nomex-mylar Nomex
• Nomex Kapton Nomex
• Nomex 410,411,414 and 418
• Machined Parts
Our processing centers can saw, execute CNC milling, turning , drilling and grinding accourding to engineering drawings ( customers requirements ) . Powertech Calidus offers an unsurpassed expertise, machines tools and processing equipment :
Laminates
• Industrial laminate sheets and threaded rods:
• Vetronite epoxy
• Vetronite polymid
• Vetronite melamine
• Vetronite Silicone
• Pamitherm
• Delmat polyester
• Durapol
• Delamt Epoxy
• Magnetic
• Cotton base
• Paper base
Liquids
These products are used at the final stage of the winding process to consolidate the insulation system of a windings drying and impregnation:
• Damicoat
• Epoxy Resins
• Polyester resins
• Thixotropic resins
• Air drying varnishes
• Hot potting varnish
• Terenol varnishing (dipping varnish for LV motors )
• Trickle resin
Mastic Processing Equipment
Powertech Calidus offers both materials and process equipment to achieve productivity increases with a fully automated way of applying mastic that replaces the manual process.
