Nomex Tape
Nomex™ 410 insulation is a tough, 220°C paper that exhibits excellent physical, thermal and electrical properties. Nomex™ is compatible with transformer oil and most commonly used with varnishes ad resins in both dry and oil-filled applications. Nomex™ insulated wire is also used in power generation and lifting magnets to meet high temperature requirements.
MARKETS
Transformers:
General
Utility Distribution Transformers
Utility Power Transformers
Specialty Transformers
TYPICAL APPLICATIONS
Oil-filled transformers, utility transformers, power generation and lifting magnet applications.
FEATURES AND BENEFITS
- Nomex™ 410 offers high dielectric strength properties, mechanical toughness and high flexibility.
- Typical tape thicknesses used for wrapping conductor is 2 mil. Other thicknesses are available upon request
- Rea offers one-, two-, three- or four-roll constructions with various overlap options available. Most common construction utilizes two tapes with 50% overlap utilizing Magna-Ply™ processing that was developed at a Rea Magnet Wire facility. Minimum overall increase in insulations thickness for 2 mil tape utilizing two tapes is 7 mil, per NEMA MW 1000-2018. Typical is 8 mil increased in total build.
- Dielectric breakdown of not less than 300 V/mil of the minimum thickness of paper covering one side or half the minimum increase in build, per NEMA MW 1000-2018.
THERMAL
Operating Temperature
220 °C
ELECTRICAL
Dielectric Constant
@ 60Hz
1.6
Dissipation Factor
@ 60Hz
4