Charging system for charging capacitors of a capacitor bank

An apparatus for controllably charging a bank of capacitors connected in series with a charging current, said apparatus comprising:

• a charger for charging said capacitor bank and for controlling a charging current;
• parallel monitors connected in parallel with each capacitor, which detect terminal voltages developed across each capacitor and bypass said charging current at voltages in excess of a preset value, said parallel monitors generating signals indicating whether the parallel monitors are ON or OFF;
• a decision means for producing a decision signal in response to the signals from said parallel monitors when at least one of the parallel monitors is ON;
• and
• a charging control means which controls said charger to reduce said charging current in response to the decision signal.

An apparatus for controllably charging a bank of capacitors connected in series with a charging current, said apparatus comprising:

• a charger for charging said capacitor bank and for controlling a charging current;
• parallel monitors connected in parallel with each capacitor, which detect terminal voltages developed across each capacitor and bypass said charging current at voltages in excess of a preset value;
• a detection means for detecting a voltage developed across a capacitor of said capacitor bank;
• and
• a charging control means which compares the detected voltage with a reference value for reduction and controls said charger to reduce said charging current when the detected voltage reaches the reference value for reduction.