R2000GZ and R2000GL
Intel
®
Server System R2000GZ/GL Product Family TPS
3.6 AC Power Supply Input Specifications
The following sections provide the AC Input Specifications for systems configured with AC power supply
modules.
3.6.1 Power Factor
The power supply must meet the power factor requirements stated in the Energy Star
®
Program Requirements
for Computer Servers. These requirements are stated below.
Output power
10% load
20% load
50% load
100% load
Power factor
> 0.65
> 0.80
> 0.90
> 0.95
Tested at 230Vac, 50Hz and 60Hz and 115VAC, 60Hz
3.6.2 AC Input Voltage Specification
The power supply must operate within all specified limits over the following input voltage range. Harmonic
distortion of up to 10% of the rated line voltage must not cause the power supply to go out of specified limits.
Application of an input voltage below 85VAC shall not cause damage to the power supply, including a blown
fuse.
Table 12. AC Input Voltage Range
PARAMETER MIN RATED VMAX
Start up
VAC
Power Off
VAC
Voltage (110)
90 Vrms
100-127 Vrms
140 Vrms
85VAC +/-
4VAC
70VAC +/-
5VAC
Voltage (220)
180 Vrms
200-240 Vrms
264 Vrms
Frequency
47 Hz
50/60
63 Hz
1. Maximum input current at low input voltage range shall be measured at 90VAC, at max load.
2. Maximum input current at high input voltage range shall be measured at 180VAC, at max load.
3. This requirement is not to be used for determining agency input current markings.
3.6.3 AC Line Isolation Requirements
The power supply shall meet all safety agency requirements for dielectric strength. Transformers’ isolation
between primary and secondary windings must comply with the 3000Vac (4242Vdc) dielectric strength criteria.
If the working voltage between primary and secondary dictates a higher dielectric strength test voltage the
highest test voltage should be used. In addition the insulation system must comply with reinforced insulation
per safety standard IEC 950. Separation between the primary and secondary circuits, and primary to ground
circuits, must comply with the IEC 950 spacing requirements.
3.6.4 AC Line Dropout / Holdup
An AC line dropout is defined to be when the AC input drops to 0VAC at any phase of the AC line for any
length of time. During an AC dropout the power supply must meet dynamic voltage regulation requirements.
An AC line dropout of any duration shall not cause tripping of control signals or protection circuits. If the AC
dropout lasts longer than the hold up time the power supply should recover and meet all turn on requirements.
The power supply shall meet the AC dropout requirement over rated AC voltages and frequencies. A dropout
of the AC line for any duration shall not cause damage to the power supply.
Loading
Holdup time
70%
12msec
22 Revision 2.2