MHD-EMP analysis and protection. Technical report. [MHD-EMP (magnetohydrodynamic-electromagnetic pulse)]

Technical Report · Wed Sep 01 00:00:00 EDT 1993

OSTI ID:5545496

Barnes, P R; Tesche, F M; McConnell, B W; Vance, E F

A large nuclear detonation at altitudes of several hundred kilometers above the earth distorts the earth's magnetic field and produces a strong magnetohydrodynamic-electromagnetic pulse (MHD-EMP). MHD-EMP is similar to solar geomagnetic storms in its global and low frequency (less than 1 Hz) nature except that it can be more intense with a shorter duration. It will induce quasi-dc currents in long lines. The MHD-EMP induced currents may cause large voltage fluctuations and severe harmonic distortion in commercial electric power systems. Several MHD-EMP coupling models for predicting the induced current on a wide variety of conducting structures are described, various simulation concepts are summarized, and the results from several MHD-EMP tests are presented. To mitigate the effects of MHD-EMP on a facility, long conductors must be isolated from the building, and the commercial power harmonics and voltage swings must be addressed. It is found that facilities can be protected against MHD-EMP by using methods which are consistent with standard engineering practices. MHD-EMP Interaction Analysis, Power Line Model, MHD-EMP Protection Guidelines, Transformer Test.

• Research Organization: Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)
• OSTI ID: 5545496
• Report Number(s): AD-A-269647/4/XAB; CNN: DE-AC05-840R21400
• Country of Publication: United States
• Language: English

Related Subjects

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71 CLASSICAL AND QUANTUM MECHANICS
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24 POWER TRANSMISSION AND DISTRIBUTION
ATMOSPHERIC EXPLOSIONS
MAGNETOHYDRODYNAMICS
ELECTROMAGNETIC PULSES
FORECASTING
MITIGATION
POWER SYSTEMS
SAFETY
DIRECT CURRENT
ELECTRIC POTENTIAL
ELECTRODYNAMICS
EXPERIMENTAL DATA
GEOMAGNETIC FIELD
HARMONICS
IONOSPHERIC EFFECTS
NUCLEAR EXPLOSIONS
SIMULATION
CURRENTS
DATA
ELECTRIC CURRENTS
ELECTROMAGNETIC RADIATION
ENERGY SYSTEMS
EXPLOSIONS
FLUID MECHANICS
HYDRODYNAMICS
INFORMATION
MAGNETIC FIELDS
MECHANICS
NUMERICAL DATA
OSCILLATIONS
PULSES
RADIATIONS
450200* - Military Technology
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& National Defense- Nuclear Explosions & Explosives
661320 - Auroral
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240000 - Power Transmission & Distribution- (1990-)