Apollo International Senior Sales Executive Interview Questions and Answers

A Single Line Diagram (SLD) is a simplified representation of a 33/11 kV substation.

• SLD shows the electrical components and their interconnections in a substation.

• It provides a clear overview of the power flow and equipment arrangement.

• The SLD includes transformers, circuit breakers, busbars, isolators, etc.

• It helps in understanding the substation's configuration and protection schemes.

• SLD is essential for design, oper

A substation can be charged by connecting it to a power source through a transformer.

• Connect the substation to a power source through a transformer

• Ensure the transformer is properly sized for the substation's load

• Monitor the charging process to prevent overloading or damage to equipment

VCB ratings refer to the voltage and current ratings of Vacuum Circuit Breakers.

• VCB ratings are typically expressed in terms of voltage and current levels that the circuit breaker can handle.

• The voltage rating indicates the maximum voltage that the VCB can safely interrupt.

• The current rating specifies the maximum current that the VCB can carry without tripping or causing damage.

• VCB ratings can vary depending on the spe...read more