When calculating the wattmeter multiplier, if a potential transformer is rated at 14400/120, what value is obtained?

To calculate the wattmeter multiplier when dealing with a potential transformer (PT) rated at 14400/120, you should understand the relationship between the primary and secondary voltages. The rated values indicate that the primary voltage of the transformer is 14400 volts while the secondary voltage is 120 volts.

The wattmeter multiplier can be calculated using the formula:

Wattmeter Multiplier = (Primary Voltage / Secondary Voltage)

In this case, you substitute the known values:

Wattmeter Multiplier = 14400 volts / 120 volts = 120

This result helps determine how much to multiply the readings on the secondary side of the transformer to accurately reflect the primary side measurements.

However, the choices provided seem to indicate a possible misunderstanding in how the multiplier is typically expressed. If you calculate the ratio of the primary value to the secondary value directly, it yields 120, not any of the values listed.

If the question were aiming for a different conceptual value related to the calculation, it would be necessary to re-evaluate the context or further detail of how this value connects to wattmeter operation in practice.

Given the choices, it may be that the intention was to offer a value that reflects another aspect or misalignment relative to