IEC 61000-4-11 Voltage Dips, Short Interruptions and Voltage Variations Testing
Radiometrics Midwest Corporation provides IEC 61000-4-11 voltage dips, short interruptions, and voltage variations immunity testing for AC-powered electronic and electrical equipment at our A2LA-accredited EMC laboratory in Romeoville, Illinois.
IEC 61000-4-11 evaluates how equipment responds to disturbances in its AC power supply, including reductions in supply voltage, brief interruptions, and voltage variations.
Radiometrics performs IEC 61000-4-11 testing using controlled power disturbance test equipment and the voltage levels, durations, phase relationships, and performance criteria required by the applicable product standard or customer test specification.
What Does IEC 61000-4-11 Testing Evaluate?
During IEC 61000-4-11 testing, controlled changes are introduced into the AC power supplied to the equipment under test (EUT) while the equipment is operating and being monitored.
Depending on the applicable requirements, testing may include voltage dips of specified depth and duration, short interruptions of the AC supply, and defined voltage variations.
During and after each disturbance, the EUT is evaluated for unintended operation, resets, loss of function, data errors, changes in performance, or failure to recover as required by the applicable performance criteria.
Radiometrics IEC 61000-4-11 Testing Capabilities
Radiometrics performs IEC 61000-4-11 immunity testing on AC-powered electronic and electrical equipment using test conditions established by the applicable product standard or customer test plan.
Our voltage dip and interruption testing capabilities include:
- Controlled AC voltage dips
- Short-duration AC power interruptions
- Voltage variation testing when required by the applicable standard
- Testing at specified residual-voltage levels and durations
- Application of disturbances at required phase relationships when applicable
- Operation and monitoring of the EUT during testing
- Evaluation of multiple operating modes when required
- Engineering assistance when power-disturbance susceptibility is observed
Planning an IEC 61000-4-11 Test Program
The IEC 61000-4-11 test program depends on the applicable product standard, equipment power requirements, specified voltage reduction levels and durations, operating modes, and equipment monitoring requirements.
The expected response of the equipment may also vary with the type and duration of the disturbance. The applicable product standard normally establishes the performance criteria used to determine whether the equipment’s response is acceptable.
Providing the applicable standard and complete AC power information before testing allows Radiometrics to establish the required test conditions and develop an accurate quotation.
Information Needed for an IEC 61000-4-11 Quote
To help Radiometrics develop an accurate voltage dip and interruption test program and quotation, please provide the following information when available:
- Applicable product standard or customer test specification
- Product description and model number
- AC input voltage, frequency, and current requirements
- Equipment power consumption or maximum input current
- Required peripherals and support equipment
- Operating modes to be evaluated
- Required voltage dip, interruption, and variation conditions, if known
- Applicable performance criteria, if known
- Method used to monitor equipment performance during testing
Voltage Dip and Interruption Troubleshooting
If a product experiences resets, loss of function, data errors, unexpected shutdowns, or other performance problems during voltage dip or interruption testing, Radiometrics can work with your engineering team to help characterize the equipment’s response.
Where practical, corrective changes can be evaluated during the test program to determine whether they improve the product’s ability to withstand power disturbances or recover as required
Schedule IEC 61000-4-11 Testing
Radiometrics Midwest Corporation has provided EMC testing and engineering services since 1983. Contact us to discuss your IEC 61000-4-11 voltage dip and interruption testing requirements, equipment power configuration, scheduling, or quotation needs.