Question

What is the formula for finding multiplication factor in lpf wattmeter?

Answer 1

For LPF Meters (let's say cos phi = 0.2):

Step 1: Note the voltage range.

Step 2: Note the current range.

Step3: The Multiplication Factor (MF) is:

MF = (voltage range x current range x power factor)/(range of the wattmeter scale)

Answer 2

HEY HERE IS YOUR ANSWER......

For LPF Meters (let's say cos phi =0.2):

Step 1: Note the voltage range.

Step 2: Note the current range.

Step 3: The Multiplication Factor (MF) is:

MF = (voltage range × current range × power factor) / (range of the wattmeter scale).

HOPE IT HELPS.....