Generator Rotor Slot Insulation

withstand the toughest winding environments and the harshest operating conditions.
A highly engineered laminate made from epoxy glass, aramid paper and a unique dielectric film, designed to withstand the toughest winding environments and the harshest operating conditions. We craft each liner to meet the most rigorous dimensional standards.
PactLam rotor slot insulation is designed expressly for use in utility-scale electrical generators.

PactLam F385 Slot Liner, 1mm T Typical Values
Property
Value
Dielectric strength,KV/mm
IEC 243
>30
Temperature class,IEC 85
H
Flexural strength,cross direction ASTM D790-3, N/mm
2
>300
Flexural modulus,cross direction,ASTM D790-3, N/mm
2
>13,500
Flexural strength,length direction,ASTM D790-3, N/mm
2
>440
Flexural modulus,length direction,ASTM D790-3, N/mm
2
>16,500
Shrinkage,%
24 hrs @ 160°C
<0.02

General Properties Exceptional electrical insulation properties
Class H temperature rating, 180°C
Low coefficient of friction
Durable construction with flexible design
High strength Configuration Standard sizes in stock
U-shaped and L-shaped configurations
Lengths up to 10,000 mm
Leg widths up to 38 mm * 254mm
Thickness up to 3.8 mm
We meet customers’ specific requirements with a variety of constructions, and regularly accept custom size and rapid delivery requests. Ask for our standard construction data sheets, or give us your specific requirements to meet your demand.