PTC (Solid State Motor Control)
PTC (Solid State Motor Control)
(OP)
I came across the following Spec requirement for solid state motor control: The SSMC shall be capable of the following: Accuracy - Zero sequence CT with PTC
What does this mean? What is its significance?
What does this mean? What is its significance?





RE: PTC (Solid State Motor Control)
PTC is Positive Temperature Coefficient, a type of thermistor whose resistance increases rapidly with rising temperature. Good for motor protection. See attached.
Zero sequence CT is used for ground fault protection.
Best to you,
Goober Dave
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