Abstract: The insulation system of Ranbar
copolymer resin and Electrolock mica tape was
evaluated on a 6900-volt system and showed
outstanding moisture and chemical resistance. In
addition, the dissipation factor at elevated
temperatures up to 200°C remained under 10%.
Because of these results the following evaluation
was undertaken to determine if the resin system
would also be capable of satisfying the requirements
for a system that could be used on motor and
generator coils. The Insulation system will also
employ a mica turn magnet wire (no enamel or
glass) that will withstand repeated high surges for
13,800-volt application. This paper includes testing
results on the 13,800-volt system to IEEE standards
and comparisons it to an existing epoxy anhydride
high voltage system that is presently used in the
field today. This system was evaluated for turn to
turn testing, repeated surges (36,000 surges @
22,632 volts), dissipation factor, voltage endurance
at 155"C, dielectric breakdown, and chemical
resistance.
Abstract: The insulation system of Ranbarcopolymer resin and Electrolock mica tape wasevaluated on a 6900-volt system and showedoutstanding moisture and chemical resistance. Inaddition, the dissipation factor at elevatedtemperatures up to 200°C remained under 10%.Because of these results the following evaluationwas undertaken to determine if the resin systemwould also be capable of satisfying the requirementsfor a system that could be used on motor andgenerator coils. The Insulation system will alsoemploy a mica turn magnet wire (no enamel orglass) that will withstand repeated high surges for13,800-volt application. This paper includes testingresults on the 13,800-volt system to IEEE standardsand comparisons it to an existing epoxy anhydridehigh voltage system that is presently used in thefield today. This system was evaluated for turn toturn testing, repeated surges (36,000 surges @22,632 volts), dissipation factor, voltage enduranceat 155"C, dielectric breakdown, and chemicalresistance.
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