> Application/Test Type>Conducted Immunity>EFT Testing
EFT Testing

 

EFT testing is a routine test  of electronics to determine immunity to micropulse phenomena that occurs along the power and data lines inside facilities, homes and vehicles. It can occur when a light switch is engaged, or a product holding a charge is plugged into the wall. Similarly, PoE can be a source for electrical fast transients along data lines, such as ethernet cables. For the physics, mathematical equations as to why EFT events exist, go back to Google, there are many in depth articles. Most of our customers are satisfied with the general understanding of the test, then more importantly, passing it for compliance and/or improving their product.

 
Pass/Fail Criteria for EFT Testing

The test sequences, clearly defined in IEC/EN 61000-4-4, are a variety of electrical fast transients delivered in bursts, in intervals over the course of several minutes. Most product specific standards give guidance as to what the failure criteria is. IE EN 55024 (ITE equipment) are determined by manufacturer, customer and best practice. This could range from allowing a soft reset during the EFT test sequence, a delay in processing or a system shut down. Usually, burning smells, melted plastic or a good old fashioned fire will be considered a fail. 

EFT Testing Procedure

Most modern EFT transient generators have test sequences pre-programmed, with the ability to manipulate test parameters such as pulse frequency and duration. The testing procedure constitutes:

  • Reading the test standard, manual and developing a test plan

  • Setting your product near to the EFT generator, while allowing the user to safely monitor the product.

  • Coupling your product into the generator

  • Starting the test sequence

  • Identify susceptibility areas and narrow down testing to troubleshoot and debug

  • Generate a test report

EFT Test Setup and Overview

Meet Electrical Fast Transient/Burst immunity test standards like IEC/EN 61000-4-4 with stand alone EFT/burst simulators.

EFT Testing There are 47 products.

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    • EFT/BURST
    • SURGE
    • POWER FAIL
    • RINGWAVE
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    • See our EFT Generators Page
    • For EMC Tests according to IEC / EN 61000-4-4 
    • Burst Verification 50 Ω + 1000 Ω 
    • Verification of the capacitive coupling pliers burst (50Ω)
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    • Meets IEC/EN 61000-4-4 Edition 3
    • Output up to 5kv
    • Color touch screen interface
    • Remote control software via USB or fiber optic
    • Configurable with Surge4-5 and PQF4-11
    • Integrated 1PH/3-wire CDN
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    • Internal automatic three-phase CDN
    • programmable setup of test parameters
    • controlled external three-phase high current CDN 
    • EFT 500S(single phase network) EFT 500T(three-phase network) 
    • Ethernet,RJ45 port for PC remote control, print and documentation 
    • 0.25kV-4.8kV±10%
    • additional hardware/software
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    • Construction as per IEC 61000-4-4
    • See our EFT Generators Page
    • EFT/Burst testing of signal and datalines 
    • Active coupling length 1 m
    • Permissable burst voltage 5 kV
    • For cable diameter up to 40 mm
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    $1,650.00 Monthly
    $1,650.00
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    $1,595.00 Monthly
    • Meet all levels of IEC 61000-4-4 EFT/Burst Immunity
    • EFT Clamp for Data Lines Included
    • Meet all levels of IEC 61000-4-2 ESD Immunity
    • NIST Traceable Calibration Certificate
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    $1,595.00
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    • Suitable for testing to EN/IEC 61000-4-4
    • 100 Day Warranty
    • Fresh NIST calibration
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    $4,750.00
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    • Voltage Range: 0.10 to 4.5 kV
    • Built in Single Phase Coupler
    • Suitable for IEC 1000-4-4 (IEC 801-4)
    $4,750.00
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    1 Unit
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    • Haefely AXOS5 Rentals
    • Output Voltage: 0.2 – 5.0 kV
    • Automated test modes, software assisted test preparation, predefined test routines and visual aided test setups
    • Automatic generation of test report, including test parameters, test setup and test result
    • IEC/EN 61000-4-4
    • IEEE/ANSI C62.41
    • IEC/EN 61850-3
    • Easily expanadable to add Surge (IEC 61000-4-5) and/or PQT (IEC 61000-4-11 & IEC 61000-4-29)
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    • Maximum cable size 40mm
    • Minimum test cable length 1m
    • Maximum EFT voltage 8kV
    • Coupling plane mounted on 0.1m insulation block
    • Handy carrying handle
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Showing 1 - 12 of 47 items