SYTW3 

This meter is used for measuring the active
power and reactive power and is of rating current type, and each
transducer is attached to the outside of all models
 For calculation of the maximum scale of the reactive meter,
1/2, 1/3 and 1/4 of the total load capacity is the best.
 If reactive meter is to be used instead of the power factor
meter, set the zero point at the center, LAG on the right side
and the LEAD on the left side.
 If more than 440V is used, PT for the meter shall be attached
to the outside for use.
¨ç Full scale of Vott meter 300 KW
PT. ratio. 3300/110V
CT. ratio. 50/5A(3P 3W)
Calibrating watts =
300KW/(3300/110V*50/5A)=1 KW
¨è Full scale of wattmeter 2000KW
PT. ratio. 13200/110V
CT. ratio. 50/5A(3P 4W)
Calibrating Watts =
2000KW/(13200/110V*50/5A)=1.666 KW
