Schlumberger Electrical GET Interview Questions and Answers

Transformers are rated in kVA because it indicates the maximum amount of power that can be safely handled by the transformer.

• kVA rating is used to determine the maximum load that a transformer can handle without overheating.

• It takes into account both the voltage and current ratings of the transformer.

• kVA rating helps in selecting the right size of transformer for a specific application.

• For example, a 100 kVA transforme...read more

MCCB stands for Molded Case Circuit Breaker.

• MCCB is a type of circuit breaker that is commonly used in electrical distribution systems.

• It provides protection against overcurrent and short circuit faults.

• MCCBs have adjustable trip settings for different levels of current protection.

• Examples of MCCB manufacturers include Schneider Electric, Siemens, and ABB.

On load tap changers adjust the transformer winding ratio while the transformer is energized, while off load tap changers require the transformer to be de-energized for adjustment.

• On load tap changers allow for continuous adjustment of the transformer winding ratio without interrupting power supply.

• Off load tap changers require the transformer to be taken offline for adjustment, leading to downtime.

• On load tap changers...read more