surge current


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surge current

[′sərj ‚kə·rənt]
(electricity)
A short-duration, high-amperage electric current wave that may sweep through an electrical network, as a power transmission network, when some portion of it is strongly influenced by the electrical activity of a thunderstorm.
References in periodicals archive ?
They can safely absorb up to 30A of surge current and a minimum of 30kV ESD without performance degradation.
Additionally, each diode can safely dissipate 80 A of 8/20-[micro]s surge current with very low clamping voltages.
The capacitors are 100% surge current tested to ensure robust performance in high-inrush-current applications.
Featuring a robust anode design, the TM3 series is 100 % surge current tested (B, C, D, and E case sizes) and available with Weibull grading and Hi-Rel screening options.
5 kA or Type 2 surge events with a measured 8/20 gs maximum discharge surge current (Imax) of 50 kA.
Their high peak surge current rating provides superior protection against high peak surges, including indirect lightning strike interference, system switching transients and abnormal fast transients from the power source.
They provide all mode surge current capability and are offered with kA ratings of 25kA to 300kA per mode.
One of the methods used to study lightning effects on structures and systems consists of a simulation of lightning strike by injecting a surge current from the generator attached to the structure [2-4].
The MOA block has a highly non linear voltage current relationship and for surge current magnitudes [I.
During the last eight years, Infineon has made a number of significant improvements to its SiC Schottky diode technology in areas such as surge current stability, switching performance and in product cost, extending the benefits of SiC technology,' said Andreas Urschitz, vice president and general manager, Power Semiconductor Discretes at Infineon Technologies.
When an ESD pulse occurs, the diode protects delicate chips from the pulse energy by diverting the surge current to ground and clamping the voltage spike to a low level that the IC can safely tolerate.
With surge current capacity from 200 to 400 kA per phase, the new devices are designed for continuous protection from damaging high-impulse voltage transients and electrical noise.