Dbpl Interview Questions, Process, and Tips for Freshers

Transmission & distribution refers to the movement of electricity from power plants to consumers.

• Transmission involves high voltage power lines that transport electricity over long distances

• Distribution involves lower voltage lines that deliver electricity to homes and businesses

• Both are essential components of the electrical grid

• Examples of transmission equipment include transformers, circuit breakers, and substations

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Pole types refer to the different materials and designs used for electrical poles, each with their own specific use.

• Wooden poles are commonly used for low voltage distribution lines.

• Steel poles are used for high voltage transmission lines.

• Concrete poles are used for areas with high wind loads or corrosive environments.

• Fiberglass poles are used for areas with high moisture content or where conductivity is a concern.

• Pole...read more

There are two types of insulators: Pin type and Suspension type.

• Pin type insulators are used for low voltage distribution lines.

• Suspension type insulators are used for high voltage transmission lines.

• Pin type insulators are mounted on the cross-arm of the pole.

• Suspension type insulators are suspended from the cross-arm of the tower.

• Pin type insulators have only one insulating unit.

• Suspension type insulators have multip

Tariff refers to the rate at which electricity is charged to consumers. There are different types of tariffs based on usage and time.

• Flat rate tariff - same rate for all units consumed

• Time of use tariff - different rates for different times of the day

• Seasonal tariff - different rates for different seasons

• Demand tariff - based on the maximum demand during a billing period

• Prepaid tariff - payment made in advance for a ce...read more

A feeder is an electrical circuit that supplies power to a branch circuit or a group of circuits.

• Feeder is used to distribute power to various loads in a building or facility.

• It is typically a larger gauge wire than the branch circuit it supplies.

• Feeder can be overhead or underground depending on the installation.

• Examples of feeders include the main electrical service entrance and subpanels.

• Feeder protection devices in