The ability of a motor’s stator slot Resistance Temperature Detectors (RTDs) to withstand the effect of corona has become critically important. Stator RTD erosion of the insulation material either at the surface or internally could cause a leakage path to the internal element. Further discharge could eventually destroy the sensing element or leak stray voltages to the lead wires connecting to monitoring instrumentation.
That’s why we put our corona-resistant stator RTD designs to the test against stator sensors made of conventional materials and construction methods. We found that corona-resistance RTDs assure a greater margin of protection to the temperature monitoring and motor protection system throughout the life of a motor in a variable frequency environment.
Our new whitepaper explains it all:
Whitepaper Download: Corona Resistance Measurement of Stator Slot Resistance Temperature Detectors (RTDs)
In this free whitepaper, we share the results of our:
- Corona inception voltage test to determine the CIV of five stator RTDs
- Long term voltage test to subject 8 RTDs to increased voltage
- Other life testing with an outside lab that tested different stator RTD constructions
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