Core Energy Systems Limited Electrical Site Engineer Interview Questions and Answers

A transformer is a static device that uses mutual induction to convert voltage levels.

• Transformers are used to increase or decrease the voltage in electrical circuits.

• They consist of two or more coils of wire, known as windings, that are wound around a core.

• The primary winding is connected to the input voltage source, while the secondary winding is connected to the load.

• When an alternating current flows through the pri...read more

Silica gel is a desiccant that absorbs moisture to keep things dry.

• Silica gel is a porous, granular form of silicon dioxide.

• It is commonly used in packaging to prevent moisture damage to products.

• It can also be found in humidifiers, dehumidifiers, and air conditioning systems.

• Silica gel changes color as it absorbs moisture, indicating when it needs to be replaced.

• It is non-toxic and safe to handle.

X-mer oil is a type of cooling oil used in transformers to dissipate heat generated by the coil.

• X-mer oil is a mineral oil with high dielectric strength and thermal conductivity.

• It is used to cool the transformer coil and prevent overheating.

• The oil also acts as an insulator to prevent electrical breakdown.

• X-mer oil is typically tested for purity and quality to ensure proper functioning of the transformer.

• Examples of X...read more