Key Features and Functions
The Com-Power LI-3P-132 LISN provides the necessary measurement platform for performing power line conducted emissions compliance testing as required by most worldwide standards for commercial products. The LISN will perform each of the following functions during the measurement:
- provide a defined, stable impedance across the measurement frequency range;
- isolate the EUT and measurement circuit from the power source, thereby minimizing its influence on the measurements; and,
- couple the disturbance voltages to the coaxial measurement port, which connects to the measuring instrument.
The LI-3P-132 LISN uses air-core inductors to prevent saturation and permeability variation. The mounting plates are left unpainted in order to facilitate connection to earth ground in their installation, which is essential due to high leakage currents. The side panels for the LISN are louvered for cooling purposes.
The LI-3P-1x series consists of four separate models of four-conductor, 50Ω / 50 μH Line Impedance Stabilization Networks (LISNs). The primary differences between the four models are their respective current ratings:
- LI-3P-116 16 Amps (per line, continuous)
- LI-3P-132 32 Amps (per line, continuous)
- LI-3P-163 63 Amps (per line, continuous)
- LI-3P-1100 100 Amps (per line, continuous)
