System and method for indirectly monitoring an isolation resistance of one or more fuel cells

A system comprising:

• a current transformer having a hollow core;
• a first set of load lines being located within the hollow core and electrically connected between an anode and a cathode of a first fuel cell and a first electrical load;
• a second set of load lines being located within the hollow core and electrically connected between an anode and a cathode of a second fuel cell and a second electrical load;
• a processor in communication with an electrical signal outputted by the current transformer;
• and
• a memory in communication with the processor, the memory having an isolation resistance determining module including instructions that, when executed by the processor, cause the processor to:
• determine an isolation resistance of the first and second fuel cells based on the electrical signal outputted by the current transformer, and
• instruct a pump to force extra coolant through at least one ion exchanger of the first and second fuel cells at a higher flowrate based on the isolation resistance.