Erratum: Rodrigo-Mor et al. Principles of Charge Estimation Methods Using High-Frequency Current Transformer Sensors in Partial Discharge Measurements. Sensors 2020, 20, 2520

The authors wish to make the following erratum to this paper [1]: the summation symbol in the Equations (11) and (12) should be a product symbol.

The corrected Equations (11) and (12) appear below:

$$H\left(s\right)=\frac{U\left(s\right)}{I\left(s\right)}=\frac{\alpha ·s·{\prod }_{i=1}^{i=m}\left(s+z_i\right)}{{\prod }_{j=1}^{j=n}\left(s+p_j\right)}$$ (11)

$$\frac{U\left(s\right)}{s^2}=I\left(s\right)\frac{\alpha ·{\prod }_{i=1}^{i=m}\left(s+z_i\right)}{s·{\prod }_{j=1}^{j=n}\left(s+p_j\right)}$$ (12)

The authors apologize for any inconvenience caused and state that the scientific conclusions are unaffected. The original article has been updated.

Conflicts of Interest

The author declares no conflict of interest.