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Electrical Fast Transient (EFT)/Burst generators are required for conducted immunity testing standards, such as IEC/EN 61000-4-4. Electrical Fast Transient EFT/Burst events are small electrical surges caused by a local source, typically an electrical switch, it can occur within a product itself as well as from the data or power lines in the facility.
The EMC Shop stocks most all types of EFT/Burst equipment for compliance and pre-compliance testing. Rent or buy stand alone Electrical Fast Transient (EFT)/Burst generators or try a multifunction generator to add Surge, Power Fail and other electrical disturbance tests.
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Electrical Fast Transient EFT/Burst Generators are typically benchtop, but heavy equipment. When doing testing on three phase power lines systems usually require much larger coupling/decoupling networks which substantially increase system size. EM test environments with ground planes with connections to earth are required to safely use transient generators.
A typical burst has a single pulse rise time/duration of 5 ns/50 ns from a source impedance of 50 Ω
Bursts of 15 ms duration with a repetition rate of 5 kHz (or 100 kHz) are applied every 300 ms
The standard defines four basic test levels, all with repetition frequencies 5 or 100 kHz
The level voltage depends on equipment being tested:
Power ports: 0.5 , 1, 2, 4 kV
Signal and control ports: 0.25, 0.5, 1, 2 kV
Subcategories
4 kV Electrical Fast Transient (EFT)/Burst generators are required for conducted immunity testing standards like IEC/EN 61000-4-4. The EMC Shop stocks all types of (EFT)/Burst generators for compliance and pre-compliance testing. Rent or buy (EFT)/Burst generators for individual tests or multifunction generators to complete an assortment of tests in a compact solution. Most systems can be easily upgraded to include additional tests as required.
8 kV Fast Transient (EFT)/Burst generators are utilized for advanced susceptibility testing for industrial or commercial electronics that coule be exposed to higher power EFT /Burst transients. The EMC Shop stocks all types of (EFT)/Burst generators for compliance and pre-compliance testing. Rent or buy (EFT)/Burst generators for individual tests or multifunction generators to complete an assortment of tests in a compact solution. Most systems can be easily upgraded to include additional tests as required.
Capacitive coupling clamps are primarily used to inject fast transient and burst interference pulses into signal and data cables, i.e. into any type of connection to peripheral equipment. The IEC standard 61000-4-4 Ed. 3 also allows the capacitive coupling method to be used for pulse injection into ac and dc power lines when no appropriate decoupling network is available. The coupling capacitance (typically 100pF) between the coupling clamp and the cable inserted depends on the cable type, the diameter and other factors like screening, etc.
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External coupling/decoupling networks are required for 3 Phase AC power line testing against electrical fast transients (burst). The EMC Shop stocks a variety of 3 Phase EFT/Burst manual CDN's that are immediately available to rent or buy.
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Purchase test equipment to verify output of an electrical fast transient (EFT)/Burst pulse generator. For calibration services see EFT/Burst Generator Calibrations.
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