Synchronous generators generate electricity at 50 Hz (60 Hz in the U.S.). When driven by steam turbines at high speeds, they are called turbogenerators, while those powered by water at lower speeds are hydrogenerators. Large motors for load management are usually induction motors with squirrel cage construction. Initially, isolated prime-mover generator sets were used, with later advancements introducing synchronization and parallel operation of alternators. Over time, power stations were linked to form power pools, which eventually connected into large, complex grid systems. Engineers have...