Blue Whale Maritime Electrical Officer Interview Questions, Process, and Tips

There are mainly two types of starter panels: Direct On Line (DOL) starter panel and Star-Delta starter panel.

• Direct On Line (DOL) starter panel: used for starting small motors where the starting current is not a concern.

• Star-Delta starter panel: used for starting large motors to reduce the starting current and torque.

• Other types may include Soft Starter panels and Variable Frequency Drive (VFD) panels for more advance

AC and DC are two types of electrical currents. AC changes direction periodically while DC flows in one direction.

• AC stands for alternating current, which changes direction periodically.

• DC stands for direct current, which flows in one direction.

• AC is commonly used in household appliances and power distribution systems.

• DC is commonly used in batteries and electronic devices.

• AC can be easily converted to different voltag...read more

Generators produce AC (alternating current) electricity.

• Generators produce AC electricity by rotating a coil of wire within a magnetic field.

• AC electricity changes direction periodically, while DC (direct current) flows in one direction only.

• Most power plants and residential generators produce AC electricity.

• Examples of AC generators include synchronous generators and induction generators.

The problem could be due to issues with the generator excitation system, voltage regulator, or mechanical issues.

• Check the excitation system to ensure it is providing the necessary field current to the generator

• Inspect the voltage regulator to see if it is functioning properly and regulating the voltage output

• Look for any mechanical issues such as loose connections or damaged components that could be affecting power pr