Technical Product Specification

Power Sub-System Intel® Server System SR1695WB TPS
Revision 1.4
Intel order number: E92079-005
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3.2.4 AC Line Fuse
The power supply shall incorporate one input fuse on the line side for input over-current
protection to prevent damage to the power supply and meet product safety requirement.
Fuse should be slow blow type or equivalent to prevent nuisance trips. AC inrush current
shall not cause the AC line fuse to blow under any conditions. All protection circuits in the
power supply shall not cause the AC fuse to blow unless a component in the power supply
has failed. This includes DC output load short conditions.
3.2.5 AC Line Inrush
The maximum AC line inrush current shall be 60A peak at an input voltage of 264VAC.
Inrush current shall be measured at an ambient temperature of 25 deg C after the input
voltage has been removed from the power supply for a minimum of 10 minutes.
3.2.6 Input Power Factor
The input power factor shall be greater than 0.98/115Vac and 0.94/230Vac over all input
voltage at loads greater than 50% of the power supply’s rated output.
3.2.7 AC Line Dropout
An AC line dropout is a transient condition defined as the AC input to the power supply drops
to 0Vrms for one AC cycle or less. An AC line dropout shall not damage the power supply
under any load condition. During an AC line dropout, the power supply must meet voltage
regulation requirements in section 3.5.4 over the rated load. An AC line dropout shall not
cause any power supply protection circuit to trip.
If the AC line dropout transient lasts longer than one input frequency period, the power
supply may shutdown or go out of regulation. A dropout period of any length shall not cause
damage to the power supply.
3.2.8 Brownout
The power supply should withstand a brownout and recover from it without any damage
stated in Table 9:
Table 9. AC Brownout and Recover
0 – 115VAC Shut Down Recover
Full Load 80Vac 88Vac
3.2.9 Efficiency
The Efficiency should meet at least Climate Saver 2/80Plus Silver rating, specified in below
table 8 and 9. The efficiency should be measured at 230VAC and with external fan power
source or deduction of the power consumed by the fan at specified loading, according to
Climate Saver/80Plus efficiency measurement specifications.
Table 10. Power Supply Efficiency
Input 20% 50% 100%
230VAC 85% 89% 85%
Table 11. Power Supply Fan Power Loss
Input 230VAC/Load 20% 50% 100%
Fan(Power Loss) 2W 5W 10W