MIL-HDBK-1004/5
Page
A-25
250-Foot Service Cable Plus Aircraft Cable-Case B14 .
.
62
A-26
300-Foot Service Cable Plus Aircraft Cable-Case B15 .
.
62
A-27
100-Ampere Load Change - Case C1 . . . . . . . . . .
.
67
A-28
150-Ampere Load Change - Case C2 . . . . . . . . . .
.
67
A-29
200-Ampere Load Change - Case C3 . . . . . . . . . .
.
68
A-30
250-Ampere Load Change - Case C4 . . . . . . . . . .
.
68
A-31
Initial One-Unit Load Plus Stepped Two-Unit Load . .
.
69
A-32
Initial One-Unit Load Plus Stepped Three-Unit Load .
.
69
A-33
Initial Three-Unit Load Plus Stepped Two-Unit Load .
.
70
A-34
Initial Three-Unit Load Plus Stepped Three-Unit Load
.
70
A-35
Initial One-Unit Load Plus Induction-Motor Starting .
.
71
A-36
Initial Two-Unit Load Plus Induction-Motor Starting .
.
71
A-37
Initial Three-Unit Load Plus Induction-Motor Starting
.
72
A-38
Initial Four-Unit Load Plus Induction-Motor Starting
.
72
A-39
Comparison of Feeder-Load Capacity at Different
Voltage Levels . . . . . . . . . . . . . . . . . .
. 74
A-40
Three-Section Passive-Element Filter . . . . . . . .
. 77
A-41
System Connection for One (Case 1) or Two (Case 2)
Rectifier-Type Unit Loads . . . . . . . . . . . . .
.
77
B-1
Simplified Circuit Diagram and Formulas . . . . . . .
.
82
B-2
Typical 400-Hz Low Voltage Distribution System . . .
.
83
B-3
Typical 400-Hz Low Voltage System . . . . . . . . . .
.
84
B-4
400-Hz Voltage Drop Calculations . . . . . . . . . .
.
85
TABLES
1
400-Hertz Aircraft Loads . . . . . . . . . . . . . . .
9
2
System Demand Factors . . . . . . . . . . . . . . . . .
9
3
Frequency Conversion Assembly Parameters . . . . . . .
12
4
Utilization Service Assembly Parameters . . . . . . . .
13
5
Cable Parameters . . . . . . . . . . . . . . . . . . .
14
6
Maximum Unit Loads on Feeders . . . . . . . . . . . . .
14
7
Maximum 400-Hertz Medium-Voltage Cable/Lengths and
Loads . . . . . . . . . . . . . . . . . . . . . . . .
15
8
Maximum 400-Hertz Low-Voltage Cable Lengths . . . . . .
15
9
Typical Full-Load Efficiencies . . . . . . . . . . . .
23
10
400-Hz Load Calculations . . . . . . . . . . . . . . .
31
11
400-Hz Central Plant Sizing . . . . . . . . . . . . . .
32
12
Determination of Acceptable Utilization Connections . .
34
A-1
Feeder Cable Length Versus Loads . . . . . . . . . . .
41
A-2
Voltage Drop on a 15,000-Foot Feeder Cable . . . . . .
47
A-3
90-kVA Line Drop Compensator's Per-Unit Impedance . . .
56
A-4
Service Cable Lengths Versus Loads and Feeder Cable
Lengths . . . . . . . . . . . . . . . . . . . . . . .
63
A-5
90-kVA Line Drop Compensator's Per-Unit Voltage Increase
64
A-6
Per-Unit Impedance Values Versus Feeder-Cable Lengths .
74
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