Installation Manual

9-8 IM02601001E www.eaton.com
Functions on the Web Server Pages
Harmonics Plot
Table of Data Points
For both views, a table below the graph provides the numeric values as well. This table
can be saved as a CSV le.
Energy
The Power Xpert Meter measures and accumulates three kinds of energy values every
60 cycles: Real Power (Watts), Reactive Power (VAR) and Apparent Power (VA). Real
Power and Reactive Power take direction into account, and so are recorded for forward,
reverse, net and sum.
Real Power (Watts)
Reactive Power (VAR) is the product of the voltage, the current, and the sine of the
phase angle between them.
Apparent Power (VA) is the square root of the sum of the squares of the active and
reactive powers.
Demand
Demand is the power consumption at the receiving terminal averaged over a specic in-
terval of time. The Power Xpert Meter is capable of measuring demand by two methods,
xed (Block) or sliding (Rolling), in intervals of 5 to 60 minutes. These measurements