GE D25 - Page 139

GE Grid Solutions
D25
User's Manual
GE Information 994-0081-3.00-21
139
CT/PT Modules, Continued
Procedure: Metering Range Calibration
(0% - 195%) (continued)
Step Action
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 tables:
CT Type: 1A Part Number: 450-0107
For Test Current… Expected Raw Value is… Tolerance
1.000 A
rms
± 0.05% 2048 ± 4 counts
CT Type: 5A Part Number: 450-0108
For Test Current… Expected Raw Value is… Tolerance
1.000 A
rms
± 0.05% 2048 ± 4 counts