To calculate the AC power requirements:
1. Calculate the power (usage) using the values, (see “MX2020 AC Power Requirements” on page 167).
2. Evaluate the power budget, including the budget for each configuration if applicable, and check the
required power against the maximum output power of available PDM options.
Table 66 on page 187 lists the three-phase delta and wye feed requirements, maximum input and output
power per PSM, and power efficiency.
Table 66: Calculating AC Power Budget
Power Supply
Module Efficiency
Maximum
Output Power
per PSM
Maximum Input
Power per PSM
Typical Input
Power per PSM
Power Distribution
Module
91%2500 W2800 W2142 WThree-phase delta
AC PDM (4 per
system)—50 A feed
(input #1), and 25 A
feed (input #2)
91%2500 W2800 W2142 WThree-phase wye AC
PDM (4 per
system)—30 A feed
(input #1), and 15 A
feed (input #2)
3. To calculate necessary input power for three-phase delta AC PDM, follow the procedure below (see
Figure 70 on page 188).
187
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