Apparent energy metering is used when a customer is billed for apparent energy. Which meter is used?

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Multiple Choice

Apparent energy metering is used when a customer is billed for apparent energy. Which meter is used?

Explanation:
Apparent energy is the combination of voltage and current magnitude over time, without regard to the phase angle. It is measured in volt-ampere-hours (VARh), which reflects the energy associated with the apparent power. To bill for apparent energy, you need a meter that continually integrates the product of voltage and current over time in its magnitude, i.e., a VAR-hour meter. In contrast, real energy (billed as kWh) is measured by a watt-hour meter, and amp-hours measure current over time (charge) rather than energy. Volt-hours aren’t used for standard billing.

Apparent energy is the combination of voltage and current magnitude over time, without regard to the phase angle. It is measured in volt-ampere-hours (VARh), which reflects the energy associated with the apparent power. To bill for apparent energy, you need a meter that continually integrates the product of voltage and current over time in its magnitude, i.e., a VAR-hour meter. In contrast, real energy (billed as kWh) is measured by a watt-hour meter, and amp-hours measure current over time (charge) rather than energy. Volt-hours aren’t used for standard billing.

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