Rated Load - Advanced Power technologies TTC-1000 Instruction & Operation Manual

been used to raise the effective current, this must be taken into account. Divide
the ratio by the number of turns. For instance if the ratio was 60:1 and two turns
are used, the new ratio is 30:1.
Programming CT RATIO from the front panel, press the
setting 148 is displayed:
Press the YES button. The first digit will flash. Use the
scroll through the digits 0 – 9. Use the
digits. The currently active digit will flash. Press YES after you have entered all
four digits.
For programming from a PC just type the CT ratio on the "Enter:" line as follows:

4.4.2 Rated Load

The Rated Load setting is the top name plate rating in Amps. If the nameplate
indicates ratings of 1000/1200/1400, use 1400 as the rated load. On some
transformers the nameplate might only list the rating in MVA. In this case you will
need to divide the top MVA rating by the voltage of winding monitored with the
CT. The rated load for a 3 phase transformer is calculated as follows:
Programming RATED LOAD from the front panel, press the
the setting 149 is displayed:
Press the YES button. The first digit will flash. Use the
scroll through the digits 0 – 9. Use the
digits. The currently active digit will flash. Press YES after you have entered all
digits.
For programming from a PC just type the Rated Load on the "Enter:" line as
follows:
This will program the Rated Load to 1473 Amps.
PRGM SETTING 148
CT RATIO=0000

Enter:148/60
Rated Load = MVA / (Voltage x 1.732)
PRGM SETTING 149
RATED LOAD=0000
Enter:149/1473

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or

or buttons to scroll between the

 
or buttons to scroll between the
37
arrow button until the

arrow buttons to

arrow button until

or arrow buttons to
V6.70 20131017