Aptive Environmental Senior Electrician Interview Questions and Answers

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

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

• They consist of two coils of wire, known as the primary and secondary coils, wrapped around a core.

• Step-up transformers increase voltage levels, while step-down transformers decrease voltage levels.

• Transf...read more

A motor is a device that converts electrical energy into mechanical energy to produce motion.

• Motors are commonly used in various applications such as industrial machinery, household appliances, and vehicles.

• There are different types of motors including AC motors, DC motors, and servo motors.

• Motors consist of a rotor, stator, and various components such as coils, magnets, and brushes.

• Examples of motors include electric

Types of transformers include power, distribution, isolation, autotransformer. Parts include core, winding, tap changer, bushing.

• Types of transformers: power, distribution, isolation, autotransformer

• Parts of transformer: core, winding, tap changer, bushing

• Power transformer is used for high voltage transmission

• Distribution transformer is used for low voltage distribution

• Isolation transformer is used for safety purposes

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ACB and VCB breakers are electrical devices used for circuit protection.

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

• ACBs use air as the medium to extinguish the arc while VCBs use vacuum.

• Both breakers are used for circuit protection and can be found in power distribution systems.

• ACBs and VCBs have similar parts including contacts, arc chutes, trip units, and operating mechanisms.