Table 1 lists the DC power supply electrical specifications.
Table 1: Power Supply Electrical Specifications
Item | Specification | |
|---|---|---|
| Normal-Capacity Power Supplies | ||
Maximum input current rating @ 40 VDC input voltage | 70 A | |
Maximum output power | 2800 W | |
DC input voltage | Nominal: –48 VDC Operating range: –40 to –72 VDC | |
DC nominal input current rating @48 VDC | 58 A maximum @ –48 VDC (nominal) | |
Internal Circuit Breaker | 80 A | |
Efficiency Note: This value is at full load and nominal voltage. | 99% | |
| High-Capacity Power Supplies | ||
Maximum output power | Two-Feed Mode | One-Feed Mode |
4100 W | 1700 W | |
DC input voltage | Nominal: –48 VDC Operating range: –40 to –72 VDC | |
DC nominal input current rating @48 VDC | Two-Feed Mode | One-Feed Mode |
104 A for both feeds (54 A and 50 A per feed) | 42 A | |
Maximum input current rating @ 40 VDC input voltage | 128 A for both feeds (66 A and 62 A per feed) | 52 A |
Efficiency Note: This value is at full load and nominal voltage. | 86% | |
Table 2: Power System Electrical Specifications
Item | Normal-Capacity | High-Capacity | |
|---|---|---|---|
Redundancy | 2+2 | 2+2 | |
Output power (maximum) per supply | 2800 W | Two-feed mode | One-feed mode |
4100 W | 1700 W | ||
Output power (maximum) per system | 5600 W | 8200 W | 3400 W |