GUID-F30E8D82-95A5-4460-AAEE-BBCD9FAD3FEB V1 EN
Figure 301:
Setpoints Successfully Written To The Control Dialog Screen
6.2.10
Auxiliary current transformer
The current input rating of the TCC300 Tapchanger Control is 200 mA, continuous.
Auxiliary CT's are necessary if primary currents exceed this value.
The Current Transformer units display scaling selection is set in the Configuration menu
to be 200 mA, 1 A or 5 A. This choice determines the unit display scaling of both the
metering readout quantities and the settings of current values.
The metering screens showing this information, Load Current and Circulating Current
will be updated accordingly. The Line Limit Current setpoint screen is also affected by
this selection.
This selection is for scaling purposes only, and neither 1 A nor 5 A should
be input to the control.
The values of the current displayed in the control Load Current, and on Circulating
Current screens can be displayed in either 200 mA, 1 A or 5 A units. 1 A or 5 A displayed
values are calculated from the actual 200 mA connected current.
The current input to the control is rated at 0.2 A continuous, 0.4 A for two
hours, and 4.0 A for 1 second.
6.2.10.1
Setting Auxiliary Current Transformer Units Display from the HMI
1.
Press the Down Arrow (CNFG Hot Button) pushbutton to wake the unit. The menu
will advance to "CONFIGURATION".
2.
Press the Down Arrow pushbutton once. The unit will display the following:
1VAC388793-MB A
Section 6
Configuration
TCC300
371
User Manual
Summary of Contents for TCC300
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