Juniper MX2010 Hardware Manual page 204

c. Nominal input current for two AC PSMs is 2 * 14 A = 28 A.
d. Nominal value of line current is 28 A * √3 = 48.5 A.
e. Current rating for input 1 is 50 A.
f. Only one AC PSM is connected between two lines.
g. Nominal value of input current for one AC PSM is 2800 W / 200 V = 14 A.
h. Nominal value of line current is 14 A * √3 = 24.5 A.
i. Current rating for input 2 is 25 A.
4. To calculate necessary input power for three-phase wye AC PDM, follow the procedure below (see
Figure 70 on page 183).
Figure 70: AC PDM Three-Phase Wye Input Power
AC PS_0
2800W
input
NE1
A1
B1
C1
AC PSM VIN=200-240 single phase:
a. Two AC PSMs are connected in parallel between two lines and neutral.
b. Nominal value of input current for one AC PSM is 2800 W / 200 V = 14 A.
c. Nominal input current for two AC PSMs is 2 * 14 A = 28 A.
AC PS_1 AC PS_4
2800W 2800W
input input
AC PS_3 AC PS_2 AC PS_5
2800W 2800W 2800W
input input input
AC PS_7
2800W
input
AC PS_6 AC PS_8
2800W 2800W
input input
NE2
A2
B2
C2
183