AccuEnergy AcuRev 1200 Series, Руководство пользователя

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1) Reactive power formula
True reactive:
Generalized reactive:
2) Energy pulse generated
Used to choose the pulse type that represented by the pulse generated through P1,P2
terminals.
Real: P1,P2 terminals generated pulse is real energy pulse.
Reactive: The generated pulse is reactive energy pulse.
3) Demand
Demand supports 4 kinds of calculate methods, which are sliding block method, fixed
block method, rolling block and thermal demand method.
a) Sliding block method: Set a 1-30min window time, that is calculate time of demand.
The window slid once per minute, and the demand value updates once. In this method, in
the operation state, demand calculation method is displayed to slip.
b) Fixed block method: Set 1-30min as a demand calculate cycle. The whole cycle
just calculate the demand once. Which means the demand update time is equal to the
demand calculate cycle. In this method, in the operation state demand calculation method
is displayed to block.
c) Rolling block method: Set 1-30min as a demand calculate cycle and 1 slip time.
Demand cycle must be integrated multiples of slip time. Calculate 1 cycle’s demand at the
end of the slip time. The demand update time is equal to the slip time. In this method, in
the operation state demand calculation method is displayed to slip.
d) Thermal demand method: Calculate the demand value through analog the theory
2 2 2 D P S Q − − =
2 2 P S Q − =