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Dokumentation

ISU_QUANTI31 - Determine Power Factor / Cosine Phi of Table

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Operands and Their Meaning

Input operands

QUANT Active energy
QUANT Reactive energy

Output operands

FACTOR Cosine phi in percent

Functions

The quotients of active and reactive energy are used to determine a cosine phi. The quantity included in the first operand is interpreted as active energy and that included in the second operand as reactive energy. Each of the inbound quantities are cumulated. This means that if several registers are affected, the consumptions are added first.

Please note that determination of the consumptions affected is based exclusively on the operand name and the corresponding consumptions. The specifications at register level on use as an active or reactive register are disregarded.

Unlike in variant QUANTI13, the cosine phi is not calculated using a formula but by accessing table EPOWERF. This table contains whole factors between 0 and 100 depending on quotients.

A whole value between 0 and 100 is determined and updated for the entire period to be billed. (->Operand update)

Info Lines and Control Options
ZAHL1 = Aggregated active energy
ZAHL2 = Aggregated reactive energy
ZAHL3 = Cosine phi
MASS1 = Unit of measurement for active energy
MASS2 = Unit of measurement for reactive energy

Example of Use

This special method for determining the cosine phi using a separate table has been designed in response to a request from Japan to adjust the demand value for billing.

Parameters

XY_OBJ
XY_SOBJ
X_OP
X_RED
X_SS

Exceptions

GENERAL_FAULT
REGULAR_ERROR

Function Group

EV00

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