Ansicht
Dokumentation

ISU_DEMAND13 - Determin Cosinus Phi from Active and Reactive Power

ROGBILLS - Synchronize billing plans   CPI1466 during Backup  
This documentation is copyright by SAP AG.

Operands

Input operands

DEMAND Active power
DEMAND Reactive power

Output operands

FACTOR Cosinus phi

Functionality

The cosinus phi is calculated from the active and reactive power. In this calculation, the demand in the first operand is active power, and the demand in the second operand is reactive power.

Note that the calculation of the relevant demand values is based only on the operand name and the allocated demand values. Entries made at the register level regarding usage as an active or reactive register are not taken into account.

Cos phi is calculated as follows:
Cos phi = 1/SQRT ((reactive*reactive)/(active*active) + 1)

Cosinus phi is determined as follows in these cases:
Reactive = 0, active > 0 ==> cos phi = 1
Reactive > 0, active = 0 ==> cos phi = 0
Reactive = 0, active = 0 ==> cos phi = 0

Cosinus phi is determined according to time slices based on changes to the demand values. The cosinus phi is then updated (-> operand update). In most cases, the calculated demand for the billing period is the same for the active and reactive power. In certain cases - when the "Demand per month" indicator is set in the operand, for example - several different demand values exist for which the cosinus phi is determined. In this calculation, these demand values are prorated accordingly.

Info lines and control options
ZAHL1 = Active power
ZAHL2 = Reactive power
ZAHL3 = Cosinus phi
MASS1 = Unit of measurement for active power
MASS2 = Unit of measurement for reactive power

Example

The cosinus phi is determined so that the demand value to be billed can be adjusted in subsequent variants if necessary.

Parameters

XY_OBJ
XY_SOBJ
X_OP
X_RED
X_SS

Exceptions

GENERAL_FAULT
REGULAR_ERROR

Function Group

EV05

Vendor Master (General Section)   SUBST_MERGE_LIST - merge external lists to one complete list with #if... logic for R3up  
This documentation is copyright by SAP AG.

Length: 2139 Date: 20240523 Time: 150739     sap01-206 ( 45 ms )