DOCA0091EN-08

# Minimum/Maximum Values of Real-Time Measurements

### Minimum/Maximum Measurements Rule

Minimum and maximum measurements take into account the absolute value of real-time measurements. Therefore the following rule applies:

0<10<200<-400<600<-3800.

In this case:

• the minimum value = 0

• the maximum value = -3800

NOTE: This rule does not apply for the power factor (PF) and for the fundamental power factor (cosϕ):
• PFmax (or cosϕ max.) is obtained for the smallest positive value of PF (or cosϕ).

• PFmin (or cosϕ min.) is obtained for the highest negative value of PF (or cosϕ).

The reset minimum/maximum command (command code = 46728) can reset the content of the minimum/maximum real-time measurement registers.

### Minimum of Real-Time Measurements

Registers 1300 to 1599 hold the minimum values of real-time metering parameters:

• The register of the minimum value of a real-time metering parameter is equal to the register of the real-time metering parameter plus 300.

Examples

• Register 1300 holds the minimum value of the phase-to-phase voltage V12 (register 1000).

• Register 1316 holds the minimum value of the current on phase 1 (register 1016).

• The order of the registers is the same as that of the real-time metering variables.

• The scale factors of the minimum values are the same as those of the real-time metering parameters.

• The minimum values of unbalance current and unbalance voltage are not available.

• The minimum values of Imin (register 1026), Vmax (register 1145), and Vmin (register 1146) are not available.

### Maximum of Real-Time Measurements

Registers 1600 to 1899 hold the maximum values of real-time metering parameters:

• The register of the maximum value of a real-time metering parameter is equal to the register of the real-time metering parameter plus 600.

Examples

• Register 1600 holds the maximum value of the phase-to-phase voltage V12 (register 1000).

• Register 1616 holds the maximum value of the current on phase 1 (register 1016).

• The order of the registers is the same as that of the real-time metering variables.

• The scale factors of the maximum values are the same as those of the real-time metering parameters.

• The maximum values of Imin (register 1026), Vmax (register 1145), and Vmin (register 1146) are not available.