capacitance of 8300 uf and was comprised of the same electrolytic capacitors used in the first capacitor bank (2500 , 350 volt). The circuit diagram of this capacitor bank is shown in Fig. 3.10. Each "capacitor” in the diagram consists of 8 parallel connected capacitors as they were obtained from PPA surplus. The new ohmic bucket circuit is shown in Fig. 3.11 and charging circuit in Fig. 3.12. Features of these circuits are that the "turn on" SCR's had to be stacked for voltage which required voltage dividers and snubbers as well as auxiliary SCR trigger circuits with isolation. A clamping resistor is connected on the DPDT relay input to prevent the voltage across the SCR's from floating around. The contacts of the heavy duty relay required RC snubbers across them to reduce contact bounce effects. The ohmic bucket capacitor bank circuit shows that all operations are done by remote control with relays for safety.
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