What is the purpose of the equalizer circuit in a generator system?

• A. protects the regulator from overload
• B. shares the load/ Split the load evenly among the DC generators
• C. acts as a starter
• D. increases frequency

Answer: (B)

When multiple generators are connected in parallel, they must share the electrical load so none carries an excessive share and overheats. The equalizer circuit does this by sensing differences in each generator’s output (or current) and making small adjustments to each generator’s regulator reference. By nudging one unit up or down slightly, it keeps the currents balanced so the load is distributed evenly across all generators. This balancing happens continuously as the load or generator conditions change, maintaining stable operation and preventing uneven wear. It’s not a starter or a device that increases frequency, and protection against overload comes from other protective systems, not the equalizer.