GE MEDICAL SYSTEMS CT 9800 QUICK SYSTEM
Rev. 1 Direction 18000
4-2-12
2-5 X-Ray Line Transformer and Jumper Settings
Before changing taps or jumpers, insure power is isolated from the MPX pwr unit main input, L1E, L2E, L3E.
Line Input Conditions
1. Monitor during the workday the No Load Line to Line Voltage. (This data should not be taken during
“brown out”).
2 Per Table 4-2-3 determine the nearest nominal line.
3. Verify that the No Load Line to Line Voltage never exceeds the maximum or is less than the minimum
values listed in Table 4-2-3 for that nominal line.
4. Connect L1L, L2L, L3L per Table 4-2-3. Line phase sequencing NOT required.
5 Connect XG1A7A1-JP1 per Table 4-2-3.
6. Connect XG1A7A1-JP2 per Table 4-2-3.
7. Measure voltages at L1E, L2E and L3E using a 0-750 AC voltmeter of 3/4% accuracy. Verify that the
highest line-to-line voltage must not exceed 1.02 times the lowest voltage. For example, if the lowest
voltage is 474, the highest voltage allowed would be 474 x 1.02 =483.5 Volts.
TABLE 4-2-3
LINE CONNECTION
NO LOAD LINE TO LINE VOLTAGES CONNECTIONS JUMPER POSITIONS
Nominal Maximum Minimum
L1L
Connection
L2L
Connection
L3L
Connection
XG1A7A1-JP1
(Line CNTR Supply)
XG1A7A1-JP2
(LO voltage supply)
480 V
460 V
440 V
420 V
400 V
380 V
520 V
499 V
474 V
454 V
433 V
412 V
432 V
414 V
396 V
378 V
360 V
342 V
AH1
AH2
AH3
AH4
AH5
AH6
BH1
BH2
BH3
BH4
BH5
BH6
CH1
CH2
CH3
CH4
CH5
CH6
A
B
B
B
C
C
A
A
B
B
B
C
To Next Page
Loading...
Need help?
General
