Absotherm Facility Management Shift Engineer Interview Questions and Answers

33 kV to 220 SLD refers to a switchgear system for electrical distribution at medium voltage levels.

• 33 kV to 220 SLD likely refers to a switchgear system designed to handle voltages between 33 kV and 220 kV.

• SLD stands for Single Line Diagram, which is a schematic representation of the electrical distribution system.

• This switchgear system would be used for distributing electricity from a higher voltage transmission syst...read more

ACB stands for Air Circuit Breaker and VCB stands for Vacuum Circuit Breaker.

• ACB is a type of circuit breaker that operates in the air where the arc is drawn in the air and extinguished using air.

• VCB is a type of circuit breaker that operates in a vacuum where the arc is drawn in a vacuum and extinguished using vacuum.

• ACBs are commonly used in low voltage applications while VCBs are used in medium voltage applications.

• ...read more

Transformer vector group is a method used to represent the phase shift between the primary and secondary windings of a transformer.

• Transformer vector group indicates the relationship between the primary and secondary winding phases.

• It helps in determining the connection and phase shift of the transformer windings.

• Common vector groups include Yy0, Yd1, Dyn11, etc.

• Vector group is important for parallel operation of trans

VBD test is conducted in transformers to ensure insulation integrity and detect any potential faults.

• VBD test helps in identifying any weak spots in the insulation of the transformer

• It helps in preventing breakdowns and ensuring the safety and reliability of the transformer

• By conducting VBD test, any potential faults can be detected early and necessary maintenance can be carried out

• It is a standard procedure in transfo