WR14 / WR50-12/13 Winding Resistance Meter Instruction Manual
Press “Analyze.”
You’ll be asked for the “Approximation” Model to
calculate the value of the Winding at time = zero.
Select the Approximation Model:
Exp (Exponential) or Linear
After selecting the Model press “Analyze.”
The value and the graph of the approximation
R(t=0) is shown.
Linear Approximation:
R0: Winding Resistance at time t = zero
m: Slew rate dr/dt in %/ min
Cor: Correlation of the approximation
Exponential Approximation:
R0: Winding resistance at time t = zero
Rinf: Winding resistance at time t = ∞
tau: Time constant
Cor: Correlation of the approximation
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