Ac filter

V_cap

Physical values
used in ac filter

One time constant

R1

X-capacitor

No.

Calculated

Measured

R1

X-capacitor

t_c

Measured

Measured

1

149 V

147.5 V

330 kW

2 x 0.33 µF

197 milliseconds

323 kW

0.611 µF

2

149 V

147.5 V

417 kW

2 x 0.10 µF

71 milliseconds

417 kW

0.171 µF

3

149 V

147.5 V

1 kW

2 x 0.47 µF

836 milliseconds

923 kW

0.906 µF

4

149 V

147.5 V

open

2 x 0.47 µF

9 seconds

10 MW

0.906 µF

Table I. Capacitor discharge.