GK Power Transmission Interview Questions, Process, and Tips

EHV power transformers consist of several components including windings, core, insulation, bushings, and cooling system.

• Windings - primary and secondary windings made of copper or aluminum

• Core - made of laminated steel to reduce eddy current losses

• Insulation - used to insulate the windings and core from each other

• Bushings - used to connect the transformer to the power system

• Cooling system - used to dissipate heat gener...read more

The latest technology in transformer fire exposition safety system includes advanced monitoring systems, fire suppression techniques, and enhanced insulation materials.

• Advanced monitoring systems use sensors to detect abnormal temperature rise or gas emissions, triggering alarms and shutdowns.

• Fire suppression techniques include the use of automatic water mist systems, which quickly extinguish fires and minimize damage.

• ...read more

To check an electrical tester, follow these steps:

• Ensure the tester is properly calibrated

• Check the battery level and replace if necessary

• Test the tester on a known live circuit

• Verify that the tester gives the expected readings

• Inspect the tester for any physical damage or loose connections

The installation procedure of a new transformer involves testing the BDV of oil and filtering the oil.

• Inspect the site and ensure it meets safety requirements

• Transport the transformer to the site and position it correctly

• Connect the transformer to the electrical system

• Test the BDV of the oil to ensure it meets specifications

• Filter the oil to remove any impurities

• Fill the transformer with oil

• Test the transformer to ensu