GE Healthcare
Direction 5743854-1EN, Revision 1 Optima XR642/XR648 Pre-Installation
Chapter 5 - Electrical
Page 97
Section 2.0
Electrical Requirements
2.1
Generator Electrical Requirements
All system components obtain their power from the Power Distribution Unit (PDU) in the System Cabinet.
Providing
power and ground wires to the PDU are the responsibility of the
customer
. As
an aid, wire sizes for various lengths
of the power supply cable are shown in the following tables.
The length of stripped wires should be longer than 25mm (1in), and tinned.
Shunt trip circuit breaker required. The main circuit breaker supplied by the customer
must be sized in accordance to local regulations.
Generator Power Specifications
Table 5-1 JEDI Generator Power Specifications
Input Voltage
380/400/415/440/460/480 VAC Wye 3-Phase and ground without neutral
Daily Voltage variations
+/- 10% (VAC) In this range, the generator will operate without any de-rating in accuracy
Nominal line frequency (Hz) 50 Hz / 60 Hz
Daily frequency variation
(Hz)
+/- 3 Hz
Line Impedance
The apparent line impedance guaranteed by the customer should be equal or less than the
values
indicated below, according to the voltage value and the commercial power of the system.
Voltage range (V) Line Impedance (ohms)
3 phase
50kW
65kW
80kW
380
0.15
0.118
0.096
400
0.16
0.131
0.100
415
0.18
0.138
0.113
440
0.20
0.154
0.125
480
0.24
0.185
0.150
NOTE:
400-480 VAC impedance values are based on IEC 601-2-7 standard. Values are
interpolated
from values in standard.
Inrush current
1000 Amps. Generator needs a 165Amps and the fuse is a part of PDU. 1000Amps is rating at
3 phase at system I/P, for generator 1000Amps current may not be required. The max current
required for generator is during start-up (capacitor charging) and during peak power exposure
for long durations.
Pre-Install.book Page 97 Tuesday, January 30, 2018 2:36 PM
