IEC 61000-3-11 is concerned with the emission of voltage changes, voltage fluctuations and flicker produced by equipment and impressed on the public low-voltage supply system.
IEC 61000-3-11 specifies the limits of voltage changes produced by equipment tested under specified conditions.
IEC 61000-3-11 is primarily applicable to electrical and electronic equipment having a rated input current from 16 A up to and including 75 A, which is intended to be connected to public low-voltage distribution systems having nominal system voltages of between 220 V and 250 V, line-to-neutral at 50 Hz, and which is subject to conditional connection.
This part of IEC 61000 is also applicable to equipment within the scope of IEC 61000-3-3 that does not meet the limits when tested or evaluated with reference impedance Zref and is therefore subject to conditional connection. Equipment that meets the requirements of IEC 61000-3-3, is excluded from this part of IEC 61000.
Equipment tests made in accordance with IEC 61000-3-11 are type tests.
Advanced Test Equipment Rentals can perform ISO17025 accredited calibration on products that abide by this standard.
NOTE: The flicker limits specified in this part, the same as those in IEC 61000-3-3, are based on the subjective severity of the flicker imposed on the light from 230 V/60 W coiled-coil filament lamps when subjected to fluctuations of the supply voltage. For systems with nominal voltages less than 220 V, line-to-neutral and/or frequency of 60 Hz, the limits and reference circuit values are under consideration.
Products Used in Testing:
Newtons4th PPA5531 Flicker and Harmonics Analyzer
The N4L PPA5531 power analyzer and impedance network provides fully compliant Harmonics and Flicker test solutions. Certified by NPL (National Physical Laboratory) in the UK, the N4L PPA5531 provides reliable, accurate...
Yokogawa WT3000 Precision Power Analyzer
The Yokogawa WT3000 Precision Power Analyzer is used to find the equipment power conversion efficiency. The unit is an ideal measurement solution for applications such as product efficiency testing, engineering, R&D work on...