Improved magnet wire for inverter-fed motors

The inverter pulse resistant magnet wire, Thermaleze Q´, was developed and introduced to the market in September 1995. Since then, laboratory accelerated motor tests as well as field tests have been performed in many different inverter-fed motor applications. It has been proved to be a greatly improved product for inverter-fed motor applications. However, an accelerated lab test on twisted pairs at elevated temperatures indicated that the current version of this wire has its limitations in high-temperature applications. Therefore, an improved version is being developed. The dielectric performance of this improved wire in comparison to current Quantumshield is presented and discussed in this paper