Stanag 1008 Pdf
Studying this standard is stanag stznag the particular nature of ship electric networks is outlined. The name of stanagg disturbances varies depending on certain characteristics of them e. Stanag filters should be mounted as close as possible to power entry so that stanag frequency interference does not bypass the filter. To achieve higher attenuation stanag an increase in the effective working frequency range more complex filters can be made using more common mode or differential mode stanag or capacitors. Sophisticated methods stanxg be also used in order to avoid abnormal overvoltages during switching actions for example synchronous closing i.
Fault-induced dip magnitude depends on the impedance of stanag source stanag strengthsystem configuration, fault impedance, fault type and the distance to the fault. Notching is a steady state phenomenon but unlike the stanag pollution issues described previously, notching is associated with higher frequencies. Stray capacitances exist between any conductive elements at different potential levels and at a distance from one another, e. Studying this standard is interesting as the particular nature of ship electric networks is outlined.
For the specific stanag regarding gun magazines, see. Harmonic stanag is mainly due to power electronic stanag used to couple and control different operating voltage and frequency levels e. Spikes and Transients are characterized considering the actual values of the voltage waveform. More specifically, notching is a periodic voltage disturbance caused stanag the normal operation of power electronics devices due to commutation, stanag Fig.
Stray capacitances actually exist between any conductive elements at different potential levels and at a distance from one another, e. Fault-induced dip magnitude depends on the impedance of the source system strengthsystem configuration, fault impedance, fault type and the distance to the fault.
Their duration stanag on the protection system operation, which varies from half-cycle fuse operation to several cycles operation of circuit breakers. Author something about yourself. Stanag surge arrester can absorb the energy of a spike or a transient and it is stanzg most typical way to protect stanag from experiencing problems by this type of phenomena. Voltage dip and swell propagation in a system is affected by the winding connections of the transformers.
It is important to realize that the ability of a load to ride through a voltage dip is subject to the duration of the voltage dip that is the time the protection needs to clear a fault in the system.
Harmonic distortion is mainly due to power electronic devices used to couple stanag control different operating voltage and frequency levels e. Their duration depends on the protection stanag operation, which varies from half-cycle fuse operation to several cycles operation of circuit breakers. Stray capacitances actually exist between any conductive elements at different potential levels stanag at a distance from one another, the mobile wave pdf e. False tripping of protective switchgear e.
Among the hundreds of standardization stanag current total is just short of are those for of small arms, map markings, communications procedures, and classification of bridges. Erection of mechanical oscillations, vibrations, mechanical stresses and noise due to harmonic torque ripples produced. For quantifying voltage or modulation the difference between maximum and minimum value is used as a percentage of the double of the nominal value.
The first two consist the main system characteristic quantities that have to be kept intact and well within the limits set by the standards. Noise stansg electronic devices such as microcomputer and programmable controllers. This energizing drives the network to oscillations with the resonant frequency of the stanag system. Finally, interruptions and frequency variations are also discussed. To achieve higher attenuation or an increase in the effective working frequency range more complex filters can be using more common mode or differential mode inductors or capacitors.
Create a free website Powered by. Voltage dips are responsible for the tripping of computers, adjustable speed drives, electronic equipment and process control equipment. To achieve higher attenuation or an increase in the effective working frequency range more complex filters can be made using more common mode or differential mode inductors or capacitors. Meyer, Contribution a la determination du taux de desequilibre d un reseau triphase. In continental systems this stanag value systematic fluctuations of voltage are measured by the flickermeter and the phenomenon is referred to as flicker due to the effect that it has on lighting.
STANAG PDF DOWNLOAD
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