IEC 61000-4-19: Difference between revisions

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__NOTOC__
The [[EN]]/[[IEC]] 61000-4-19 standard describes how [[Conducted Immunity]] measurements are performed on A.C. power ports in the frequency range from 2 kHz to 150 kHz.
The [[EN]]/[[IEC]] 61000-4-19 standard describes how [[Conducted Immunity]] measurements are performed on A.C. power ports in the frequency range from 2 kHz to 150 kHz.
The title of this standard is also: "IEC 61000-4-19: Electromagnetic Compatibility (EMC) - Part 4-19: Testing and measurement techniques -
 
The exact title of this standard is: "IEC 61000-4-19: Electromagnetic Compatibility (EMC) - Part 4-19: Testing and measurement techniques -
Test for immunity to conducted, differential mode disturbances and signalling in the
Test for immunity to conducted, differential mode disturbances and signalling in the
frequency range from 2 kHz to 150 kHz, at a.c. power ports"
frequency range from 2 kHz to 150 kHz, at a.c. power ports"
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* All equipment operating at a mains supply voltage up to 280 V and a frequency of 50 Hz or 60 Hz.
* All equipment operating at a mains supply voltage up to 280 V and a frequency of 50 Hz or 60 Hz.


The 'Van der Hoofden' measurement should be performed using a specifically described test-head. This can for example be the [[Schwarzbeck]] VDHH 9502 or the [[AFJ]] VDH 30.
The IEC 61000-4-19 describes two different (modulation) test-types which are recommended to use both:
Then the emission measurement should be performed using the following parameters:
* a sweep test performed with CW pulses with pauses between each pulse
{|border=1
* a test performed with blocks of rectangularly modulated pulses with four different modulation frequencies
!Frequency Range
 
!6 dB RBW bandwidth
=== sweep test with CW pulses with pauses ===
!Measurement time
* A standard [[Conducted Immunity]] test should be performed, using a dwelltime of at least 3 seconds
!Frequency step
* Between each tested CW frequency, the level of the test signal is zero for a period of 300 ms (with a tolerance of +- 200 ms). This creates a 'Pulsed CW test with pauses'.
!Detector
* A 2% frequency step will be used to step from 2 kHz to 150 kHz.
 
=== sweep test with rectangularly modulated pulses ===
* A standard [[Conducted Immunity]] test should be performed, using a dwelltime of 3 seconds.
* A 2% frequency step will be used to step from 2 kHz to 150 kHz.
* Between each tested CW frequency, the level of the test signal is zero for a period of 300 ms (with a tolerance of +- 200 ms).  
 
This test should be performed 4 times, where each test is using pulse modulated (with a 50% duty cycle) CW signal.
Depending on the AC Mains frequency the pulse modulation frequencies should be:
{|class="wikitable"
!AC Mains frequency
!Pulse modulation frequencies
|-
|-
|20 kHz - 150 kHz
|50 Hz
|200 Hz
|3 Hz, 101 Hz, 301 Hz, 601 Hz
|100 ms
|220 Hz
|Peak
|-
|-
|150 kHz - 10 MHz
|60 Hz
|9 kHz
|4 Hz, 121 Hz, 361 Hz, 721 Hz
|20 ms
|10 kHz
|Peak
|}
|}
The result of the emission measurement results should be used in a calculation to determine the Factor 'F'. The final value of this Factor 'F' should not exceed 0.85 for the measurements to pass.


== Related standards ==
== Related standards ==
* [[IEC61000-4-13]]
* [[IEC 61000-4-13]]
* [[IEC61000-4-16]]
* [[IEC 61000-4-16]]


== Links ==
== Links ==
* http://www.schwarzbeck.com/index.php/en/van-der-hoofden-test-head
* [https://webstore.iec.ch/publication/4188  IEC 61000-4-19]
* http://afj-instruments.com/prodotti.php?prod=462


[[Category:Standard]]
[[Category:Standard]]

Latest revision as of 09:00, 19 December 2022

The EN/IEC 61000-4-19 standard describes how Conducted Immunity measurements are performed on A.C. power ports in the frequency range from 2 kHz to 150 kHz.

The exact title of this standard is: "IEC 61000-4-19: Electromagnetic Compatibility (EMC) - Part 4-19: Testing and measurement techniques - Test for immunity to conducted, differential mode disturbances and signalling in the frequency range from 2 kHz to 150 kHz, at a.c. power ports"

Relevant products:

  • All equipment operating at a mains supply voltage up to 280 V and a frequency of 50 Hz or 60 Hz.

The IEC 61000-4-19 describes two different (modulation) test-types which are recommended to use both:

  • a sweep test performed with CW pulses with pauses between each pulse
  • a test performed with blocks of rectangularly modulated pulses with four different modulation frequencies

sweep test with CW pulses with pauses[edit]

  • A standard Conducted Immunity test should be performed, using a dwelltime of at least 3 seconds
  • Between each tested CW frequency, the level of the test signal is zero for a period of 300 ms (with a tolerance of +- 200 ms). This creates a 'Pulsed CW test with pauses'.
  • A 2% frequency step will be used to step from 2 kHz to 150 kHz.

sweep test with rectangularly modulated pulses[edit]

  • A standard Conducted Immunity test should be performed, using a dwelltime of 3 seconds.
  • A 2% frequency step will be used to step from 2 kHz to 150 kHz.
  • Between each tested CW frequency, the level of the test signal is zero for a period of 300 ms (with a tolerance of +- 200 ms).

This test should be performed 4 times, where each test is using pulse modulated (with a 50% duty cycle) CW signal. Depending on the AC Mains frequency the pulse modulation frequencies should be:

AC Mains frequency Pulse modulation frequencies
50 Hz 3 Hz, 101 Hz, 301 Hz, 601 Hz
60 Hz 4 Hz, 121 Hz, 361 Hz, 721 Hz

Related standards[edit]

Links[edit]