GE D25 User Manual page 142

Substation controller
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D25
User's Manual
CT/PT Modules,
Procedure: Over-current Range Calibration (195% - F.S.) (continued)
142
Continued
8.
Inject the test currents (see the following table) into the inputs, and
use the D25 AC Input Engineering Value Displays to verify that the
reported raw magnitudes are within the tolerances stated in the
following table:
CT Type: 1A
Part Number: 450-0107
For Test Current...
4.000 A
± 0.05%
rms
CT Type: 5A
Part Number: 450-0108
For Test Current...
20.000 A
± 0.05%
rms
994-0081-3.00-21
Expected Raw Value is...
8192
Expected Raw Value is...
8192
GE Grid Solutions
Tolerance
± 41 counts
Tolerance
± 41 counts
GE Information

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