EN 61000-4-19 EMC Immunity Testing of Unbalanced Electrical Equipment
EN 61000-4-19 evaluates immunity tests for electrical and electronic equipment to conducted, differential mode disturbances. As a leader in electromagnetic compatibility, EMC, regulatory compliance testing, Keystone Compliance assists electronic equipment manufacturers with EMC testing. Meeting the IEC, EN, and other EMC testing requirements can be challenging. Not only do we understand the challenges, but we help guide companies through the process.
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Summary of EN 61000-4-19 EMC Compliance Testing
The EN 61000-4-19 standard determines test methods for electronic equipment to mode disturbances. These disturbances signal in the range of 2 kHz up to 150 kHz at a.c. power ports. The EN electromagnetic compatibility standard establishes a common and reproducible basis for testing equipment.
This electromagnetic compatibility compliance test defines:
- Test waveforms
- Range of test levels
- Test equipment
- Test setup
- Test procedures
- Verification procedures
EN 61000 standard method testing is intended to demonstrate the immunity of electrical and electronic components operating at a mains supply voltage up to 28 V.
Immunity to a disturbance is a term used numerous times within this test method. This term is described as the ability of a device, equipment, or system to perform without degradation in the presence of an electromagnetic disturbance.
Scope of EN Unbalanced Electrical Equipment Testing
Conducted mode disturbances may influence the performance of equipment and systems installed in all electromagnetic environments. The coupling of these disturbances and signaling is very strong for a.c. power ports. However, it is only relatively weak for all other ports. EN 61000-4-19 applies to a.c. ports only.
Disturbances and signaling are usually generated by:
- Power line communication systems;
- Power electric equipment. I.e. power converters and lighting;
Adequate immunity of these disturbances and signaling is necessary for product and device testing. To verify such immunity, two tests for voltage and current are in the frequency range of 2 kHz to 150 kHz. The first test performed is a sweep test with continuous-wave pulses. The test includes pauses between each pulse. The second test performed is a test with blocks of rectangularly modulated pulses with four different modulation frequencies.
Typically, voltage tests apply to all equipment. Current tests are intended for equipment with an a.c. current measurement port, such as an electricity meter.
Test equipment features test generators for differential voltage testing. All generators have provisions to prevent emissions. If injected into the power supply network, the emissions may influence test results.
Expert EN 61000-4-19 EMC Testing Lab
Keystone Compliance can accommodate fixed, mobile and portable devices of all sizes. In addition to electromagnetic compatibility testing, Keystone has a full scope of expertise including environmental and package testing such as vibration, cold chain, and temperature. Our team strives to give our customers more time and energy on product development instead of testing.
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