Electrical Construction Manager Interview Questions and Answers

Before placing a power transformer on foundation, we need to check several things.

• Check the transformer's weight and ensure that the foundation can support it

• Inspect the transformer for any damage during transportation

• Check the oil level and quality

• Verify the electrical connections and grounding

• Ensure that the transformer is properly aligned on the foundation

• Perform insulation resistance tests

• Check the cooling system

• Verify that all safety devices are in place and functioning ...read more

We have constructed a 220 kV outdoor substation.

• The substation is designed to receive power from the transmission grid and distribute it to the local distribution network.

• It includes transformers, circuit breakers, disconnect switches, and other equipment.

• The substation is located in an open area and is designed to withstand harsh weather conditions.

• We followed all safety regulations and guidelines during the construction process.

• The substation was commissioned and tested bef...read more

Switchyard erection activities involve the installation of electrical equipment and structures for power transmission and distribution.

• Clearing and grading the site

• Excavating and pouring foundations for equipment

• Installing transformers, switchgear, and other electrical equipment

• Erecting support structures for overhead transmission lines

• Laying underground cables and conduits

• Testing and commissioning the switchyard

• Ensuring compliance with safety and environmental regulations

Earthing of switchyard is essential for safety and proper functioning of electrical equipment.

• Earthing provides a low resistance path for fault current to flow, preventing electrical shocks and damage to equipment.

• The switchyard should be connected to a grounding grid, which is designed to handle the maximum fault current that can occur.

• The grounding grid should be regularly tested to ensure its effectiveness.

• All metallic parts of the switchyard, including fences and structur...read more