Chapter 4 Page no. 336
Chap-Pre-Requirements.fm
GE Healthcare Senographe DS
Revision 1 Service Information and Procedures Class A 2385072-16-8EN
Pre-Installation System Requirements
ILLUSTRATION 1 - EXAMPLES OF LOCKABLE LOTO ENABLED POWER SOURCES
5-3. Line Voltage Specifications
• Single phase input voltages (phase/neutral or phase/phase): 200/208/220/240 V (±10%).
• Maximum line current of the system: 42 A at 180 VAC, based on maximum input voltage (30 kV) and
output current (100 mA) of the tube housing assembly.
The maximum line current corresponds to the use of the technique factors 30 kV, Mo track, large
focal spot and 100 mAs or more.
CAUTION
380 VAC or 415 VAC coupling which was possible with Senographe 2000D is not possible
with the Senographe DS system.
If you choose this coupling, you will destroy the Gantry power supply.
5-4. Line Frequency Specifications
• 50 Hz or 60 Hz (±1 Hz).
5-5. kVA Load Characteristics
• Maximum power in standby: 1.5 kVA.
• Maximum instantaneous power (during exposures, up to 6 seconds) 9 kVA.
• Power factor: 0.6.
• Line current crest factor: 1.7 at 200 V.
5-6. Line Impedance
The apparent resistance of the mains supply R
L
must be less than that which would cause a voltage
drop of 6% at the maximum power load of 9 kVA. Refer to the table below for relevant values:
Nominal voltage (V ac) 200 208 220 240
Maximum impedance R
L
(ohms) 0.28 0.30 0.34 0.40
Example 1
Example 2 Example 3
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