| 1 |
Mean value |
 |
Randomness of arc current |
| 2 |
Variance |
 |
Randomness of arc current |
| 3 |
Skewness |
 |
Randomness of arc current |
| 4 |
Kurtosis |
 |
High frequency characteristic |
| 5 |
Peak-to-peak value |
 |
High frequency characteristic |
| 6 |
Maximum current change rate |
 |
Zero-recess characteristic |
| 7 |
Cosine similarity |
 |
Current similarity |
| 8 |
The zero rest time within 0.002 seconds before the current |
 |
Zero-recess characteristic |
| 9 |
The proportion of fundamental wave |
 |
Low frequency characteristics |
| 10 |
The proportion of 3rd harmonic |
 |
Low frequency characteristics |
| 11 |
Proportion of 5th harmonic |
 |
Low frequency characteristics |
| 12 |
The energy of cd3 layer and |
 |
High frequency characteristic |
| 13 |
The energy of cd4 layer and |
 |
High frequency characteristic |
| 14 |
The maximum value of cd1 layer module |
 |
Zero-recess characteristic |
| 15 |
The maximum value of cd2 layer module |
 |
Zero-recess characteristic |
| 16 |
The maximum value of cd3 layer module |
 |
Zero-recess characteristic |
| 17 |
The maximum value of cd4 layer module |
 |
Zero-recess characteristic |
| 18 |
The maximum value of cd5 layer module |
 |
Zero-recess characteristic |
| 19 |
The maximum value of ca5 layer module |
 |
Zero-recess characteristic |
| 20 |
The energy of cd1 layer in 0.002 seconds before the current |
 |
Zero-recess characteristic |
| 21 |
The energy of cd2 layer in 0.002 seconds before the current |
 |
Zero-recess characteristic |
| 22 |
The energy of cd3 layer in 0.002 seconds before the current |
 |
Zero-recess characteristic |
| 23 |
The energy of cd4 layer in 0.002 seconds before the current |
 |
Zero-recess characteristic |
| 24 |
The energy of cd5 layer in 0.002 seconds before the current |
 |
Zero-recess characteristic |
| 25 |
The energy of ca5 layer in 0.002 seconds before the current |
 |
Zero-recess characteristic |
