Electrical Exam Term

Kilowatt (kW)

A unit of electrical power equal to 1,000 watts, commonly used to measure the power consumption of large appliances and electrical systems.

Detailed Explanation

Kilowatts measure instantaneous power draw, while kilowatt-hours (kWh) measure energy consumption over time. A typical residential service in the US is 200 amps at 240 volts, providing approximately 48 kW of capacity. Electric bills are based on kWh consumption. Understanding kW is essential for load calculations and sizing electrical services.

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Practice QuestionEasy

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