Emirates Global Aluminium Interview Questions and Answers

Isolation can be confirmed by using a voltage detector, lockout/tagout procedures, and visual inspection.

• Use a voltage detector to ensure that there is no voltage present in the transformer.

• Follow lockout/tagout procedures to prevent accidental energization.

• Visually inspect the transformer to ensure that all switches and breakers are in the off position.

• Check the grounding system to ensure that it is properly installed...read more

To confirm isolation before performing preventive maintenance on a 11 kV power transformer, follow these steps:

• Ensure the power supply to the transformer is switched off

• Lock and tag the circuit breaker or disconnect switch to prevent accidental energization

• Use a voltage detector or multimeter to verify absence of voltage at the transformer terminals

• Check for any warning signs or labels indicating isolation

• Visually insp...read more