An emergency generator on the ship provides power in case the main generators of the ship fail and creates a “dead or blackout condition”.
It is designed to provide electricity to essential systems and equipment, such as navigation lights, communication systems, and fire-fighting equipment, to ensure the safety of the ship and its crew.
The emergency generator is usually located in a separate room or compartment on the ship and is equipped with an automatic transfer switch (ATS) that detects a main power failure and automatically switches to the emergency generator.
According to general requirements, at least two modes of starting an emergency generator should be available. The two modes should be – battery start and hydraulic or pneumatic start.
The emergency generator is usually powered by diesel fuel and is equipped with a fuel tank, a battery, and an automatic starting system. It is also equipped with monitoring and control systems to ensure that it is operating correctly and to alert the crew in case of any problems.
The Port state control (PSC) might detain a ship or provide some time to correct any kind of deficiency found in the second mode of starting is not operating.