Sageon III Power System
Introduction
PM990-8800-00, Rev. 9
1-7
Input: 48V Rectifiers
Rated Input
Range, Nominal ..................................... 208-240 Vac
Range, Tolerance ................................... 185-275 Vac
Connection ............................................. Single phase; Phase-to-Phase or Phase-to-Neutral
Current ................................................... 13.1 @ 208 Vac; 11.3 @ 240; 16A max @ 120V or below
Frequency .............................................. 45-66 Hz
Extended Input (with output de-rating)
Low ........................................................ 85-185 Vac
High ....................................................... 275-285 Vac
Guaranteed Start ........................................... 90 Vac
Soft Start ....................................................... 8 seconds ramp-up to full load
Efficiency ...................................................... Greater than 90% @ >50% load, 230 Vac input, 25°C (77°F)
Power Factor ................................................. Greater than 0.98 at 50% to 100% of rated load
Protection
Internal Protective Devices .................... Double Fused (input)
External Protective Device .................... Thermal circuit breaker (input)
Fully Protected ....................................... 440 Vac, indefinitely
Over-Voltage Shutdown ........................ 300 Vac
Under-Voltage Shutdown ...................... 85 Vac
Service .......................................................... Hot swappable (i.e. Can be installed in or removed from an operating Sageon III Power
System)
Output, 48V Rectifiers
Float Voltage
Nominal ................................................... 54.2 Vdc
Range ...................................................... 42-58 Vdc
Equalize Voltage ........................................... 45-59.9 Vdc
Current Limit ................................................ 10% to 110% of rated output
Temperature Derating ................................... 25A @ 158°F (70°C)
Output Rectifiers
Power Limit .................................................. Foldback current limiting
Static Regulation
Line ......................................................... Better than +/-0.05%
Load ........................................................ Better than +/-0.05%
Dynamic Regulation ..................................... +/-2% for 10% to 90% to 10% step load change
+/-1% of final value within 1 ms of step change
+/-0.2% for a 25% step change in AC input voltage
Electrical Noise ............................................. <0.96 mV RMS Psophometrically weighted
Wide-Band Noise .......................................... <10 mV RMS (10 kHz-100 MHz)
Peak-to-Peak Ripple...................................... <100 mV (10 kHz-100 MHz)
Load Sharing ................................................. <+/-5% of full scale with active current sharing from SCU
Protection
Internal ................................................... Fuse
Over Current .......................................... Can sustain a short circuit at output terminals indefinitely
Temperature ........................................... Gradual reduction of power limit if heatsink temperature exceed preset limit
SCU programmable
Battery menu .......................................... Float and equalize voltages
Rectifier menu ....................................... Current limit, high and low voltage alarm limits, HVSD, and HVSD reset
