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MIL-STD-1399-390 Base Document:1987

Current
Current

The latest, up-to-date edition.

INTERFACE STANDARD FOR SHIPBOARD SYSTEMS - ELECTRIC POWER, DIRECT CURRENT, (OTHER THAN SHIP'S BATTERY) FOR SUBMARINES (METRIC)
Available format(s)

PDF

Language(s)

English

1 SCOPE AND INTERFACE
    1.1 Scope
    1.2 Interface
2 REFERENCED DOCUMENTS
    2.1 Government documents
          2.1.1 Standards
    2.2 Order of precedence
3 DEFINITIONS
    3.1 Ground (ground potential)
          3.1.1 Grounding (of electric systems/equipment)
          3.1.2 Grounded electric system
          3.1.3 Ungrounded electric system
    3.2 Electric power system
    3.3 User equipment
    3.4 Interface
    3.5 Voltage
          3.5.1 Nominal user voltage
          3.5.2 User voltage tolerance (steady state)
          3.5.3 Voltage transients
                  3.5.3.1 Voltage transient tolerance
                  3.5.3.2 Voltage transient recovery time
                  3.5.3.3 Voltage spike
          3.5.4 System ripple voltage (percent)
          3.5.5 Overvoltage and undervoltage
    3.6 Ripple current
    3.7 Inrush current/initialization
    3.8 Rate of change (slew rate)
    3.9 Isolation
    3.10 Limited break supply
    3.11 No-break supply (uninterruptible power supply)
    3.12 Siemens
    3.13 Common mode interference
    3.14 Differential mode interference
    3.15 Auctioneering (OR'ing)
    3.16 Free wheeling
4 GENERAL REQUIREMENTS
    4.1 Interface requirements and constraints
    4.2 Conformance tests
5 DETAILED REQUIREMENTS
    5.1 Electric dc power source characteristics
          5.1.1 Type of power
          5.1.2 Power interruption
                  5.1.2.1 Limited-break power
                  5.1.2.2 No-break power
          5.1.3 Grounding
          5.1.4 Power source ripple
                  5.1.4.1 Power source ripple voltage
                  5.1.4.2 Power source
          5.1.5 Power source impedance
          5.1.6 Power source voltage limits
                  5.1.6.1 Power source nominal voltage
                  5.1.6.2 Voltage interrupt limits
          5.1.7 Power source protection against externally
                  caused disturbances
          5.1.8 Power source dc ground isolation
          5.1.9 Power source ac ground isolation
          5.1.10 Power source electromagnetic
                  interference (EMI) limits
    5.2 Interface characteristics
          5.2.1 Nominal user voltage
          5.2.2 User voltage tolerance
          5.2.3 System voltage ripple
          5.2.4 Voltage transient
          5.2.5 Spike voltage
          5.2.6 System dc ground isolation
          5.2.7 System ac ground isolation
          5.2.8 Power system impedance
          5.2.9 Continuity of power
          5.2.10 Other system interface characteristics
                  5.2.10.1 Location of interference
                  5.2.10.2 User equipment failure
                  5.2.10.3 Emergency operating conditions
    5.3 User equipment constraints
          5.3.1 User equipment EMI limits
          5.3.2 User equipment ripple current
          5.3.3 User equipment ripple voltage
          5.3.4 User equipment inrush/initialization
                  current
          5.3.5 User equipment load current slew rate
          5.3.6 User equipment dc ground isolation
          5.3.7 User equipment ac ground isolation
          5.3.8 User equipment input/output isolation
          5.3.9 Protection of user equipment
                  5.3.9.1 Equipment polarity
                  5.3.9.2 Other circumstances
          5.3.10 User input impedance
    5.4 User equipment conformance tests
    5.5 User equipment EMI test
    5.6 Power source conformance tests
    5.7 Power source EMI tests
6 NOTES
    6.1 Intended use
    6.2 Data requirements
    6.3 Systems analysis
    6.4 Electrical schematic
    6.5 No-break power
    6.6 Deviations
    6.7 Subject term (key word) listing
FIGURES
1 Dc interface
2 Voltage envelope
3 Voltage test spike (short time transient)
4 Power system Z versus frequency
5 Power source CEO1 differential mode ripple current limits
6 Power source CEO1 common mode ripple current limits
7 Power source CEO3 common mode narrowband ripple current
    limits
8 Power source CEO3 common mode broadband limits
9 Typical source Z versus frequency - 60 Hz transformer
    rectifier
10 User equipments CEO1 differential mode ripple current
    limits
11 User equipment CEO1 common mode ripple current
    limits
12 User equipment CEO3 common mode narrowband ripple current
    limits
13 User equipments CEO3 common mode broadband limits
14 Power source CSO1 limits
15 Power source CSO2 limits
16 Power source CSO1 line-to-ground test set-up
17 Power source CSO2 line-to-ground test set-up
18 User equipment CSO1 line-to-ground test set-up
19 User equipment CSO2 line-to-ground test set-up
20 Power source CEO1 and CEO3 differential mode ripple
    current test set-up
21 Power source CEO1 and CEO3 common mode ripple current
    test set-up
22 User equipment CEO1 and CEO3 common mode ripple current
    test set-up
TABLES
I Interface characteristics of the electric power system
II Power source rating for measuring user equipment ripple
    voltage
III User equipment inrush limit
IV User equipment slew rate limit
APPENDIX
10 GENERAL
    10.1 Scope
20 REFERENCED DOCUMENTS
30 DEFINITIONS
40 GENERAL REQUIREMENTS
50 DETAILED REQUIREMENTS
    50.1 Power source EMI limits
    50.2 Users equipment EMI limits
    50.3 Filtering
          50.3.1 Power source capacitance to ground
          50.3.2 User equipment capacitance to ground
    50.4 Power source EMI test
    50.5 User equipment EMI test




Gives the electrical interface requirements for, and the constraints on, the design of submarine systems/equipments which will utilize direct current (dc) electric power.

Committee
FSC 1990
DocumentType
Standard
Pages
47
PublisherName
US Military Specs/Standards/Handbooks
Status
Current

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