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| MIL-E-7016F
l.l(B-C+D)
A=
Formula:
E
Peak demand factor.
A=
Where:
The 5-second average system power require-
B=
ments for the operating condition analyzed.
The 5-second average power requirements of
C=
the largest equipment or group of equipments
started simultaneously during the operating
Condition
The peak power requirements of the above
D=
equipment.
The 5-second adjusted capacity of the power
E=
source.
Note: The peak demand factor (A) must, in general, be less
than 1 to avoid system malfunction.
6.3.6.1
Sample calculation.
kVA
kVAR
kW
51
36.4
35.7
(5-second average load from load
B
analysis chart)
30
21.4
21.0
(5-second average motor load from
C
Figure 6)
14.7
15.0
(Remainder)
B-C
35.2
102
96.0
(Peak power requirement of Figure 6)
D
122
111.0
49.9
(Probable peak demand of load)
B-C+D
x 1.1
(Multiply by 1.1 to cover line losses)
1.1
134
(Probable peak demand on source)
1.l(B-C+D)
137
(Takeoff and climb 5-second adjusted
E
source capacity)
0.98
(Transient demand factor, condition G6)
25
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