ABB TCC300, User Manual, Page: 366 / 716

GUID-64E3E9D7-7F66-4451-906E-B934BF7F9785 V1 EN
Figure 288: Save to Device Confirmation Screen
4. Select OK . TCC600 will display a "Setpoints Successfully Written to the Control"
confirmation screen.
GUID-F30E8D82-95A5-4460-AAEE-BBCD9FAD3FEB V1 EN
Figure 289: Setpoints Successfully Written To The Control Dialog Screen
6.2.7 Ratio multipliers
6.2.7.1 Voltage and current multipliers
The voltage and current multipliers do not affect the regulation of the
control. They are only used in the calculation of primary values.
The use of a voltage correction factor is incorporated in the calculation of
primary quantities in the control. Although the control operation is not
affected, erroneous values will be displayed and recorded if the VT
correction factor is not included in the PT multiplier.
Primary quantities are displayed when voltage and current multipliers are set in the
control. The voltage multiplier is:
V
mult
= V
pri
/(V
sec
+ V
corr
)
For a VT ratio of 7620/117 V and a voltage correction of 3 V, the multiplier is:
Section 6
1VAC388793-MB A
Configuration
360 TCC300
User Manual