Schneider Electric K series Manual do Utilizador descarregar pdf (Página 26)

PM1000 Series Power Meters PLSED309039EN

Chapter 2 – Quick Start Guide 08/2010

Demand Power Calculation Methods

Demand power is the energy accumulated during a specified period divided

by the length of that period. How the power meter performs this calculation

depends on the method you select. To be compatible with electric utility billing

practices, the power meter provides the following types of demand power

calculations:

 Auto (sliding block)

 User (fixed block)

Auto (sliding block)

In the auto demand power calculation, you select an interval between five

and 30 minutes in steps of five minutes. The demand calculation updates

every 15 seconds.

Auto demand power calculation is the default calculation for PM1000 series

power meters.

User (fixed block)

In the user demand power calculation, you select an interval between five

and 30 minutes in steps of five minutes. The demand calculation updates at

the end of the interval. User demand power calculation can be selected

through setup. See ―Setup parameters in View and Edit modes‖ on page 20

for more information.

15 minute interval

Demand value is the

average for the last

completed interval

Time

(Second)

User (Fixed block) demand calculation

15 30 45 60

Calculation updates

every 15 seconds

15 minute interval

Demand value is the

average for the last

completed interval

Time

(second)

Auto (Sliding block) demand calculation

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