What device is used in parallel DC generators to ensure even load sharing between the generators?

The equalizer connection is essential in parallel DC generators as it permits an even distribution of load between the generators. When multiple generators operate in parallel, differences in their terminal voltages can lead to unequal load sharing. The equalizer connection consists of connections between the armatures of the generators, allowing the generators to share their output currents more uniformly.

By connecting the armatures, the equalizer allows for corrective action when imbalances occur, facilitating an automatic response to slight variations in output voltage. This connection helps maintain system stability and ensures that no single generator is overloaded while others are underutilized, which is crucial for the reliable operation of a parallel generator setup.

While voltage regulators and other devices also play important roles in managing generator output, they do not specifically address the direct needs of balancing loads among multiple generators as the equalizer connection does.