Efek Grounding pada LISN saat Pengukuran Conducted Emission

M. Aldiansyah (Politeknik Caltex Riau)
Mochamad Yanuar Haryawan (Politeknik Caltex Riau)

Proceeding Applied Business and Engineering Conference
Vol. 9 (2021): 9th Applied Business and Engineering Conference

The increasing use of electronic devices needs to ensure the level of security so that consumers areprotected. The electronic device used emits electromagnetic waves. EMC testing is intended so that theeffects of EMC can be controlled by radiation and its harmful exposures. Line Impedance StabilizationNetwork (LISN) is a device used for emission testing in electromagnetic compatibility (EMC) testing. Themany types of LISN in the EMC test with various forms of chassis ground, this research was conducted todetermine the effect of grounding on two different LISN, namely the load and no load conditions. Thencompare the conditions without grounding on LISN. The loads used are television and PC monitors asEquipment Under Test (EUT), while the measurement without load is called the Noise Floormeasurement. The test method used refers to CISPR 13: 2009. Grounding reduces emission problems inmeasurements caused by poor voltage or non-standard quality of components so as to stabilize theemission values during the conducted emission measurements. Measurement of noise floor with thegrounding system on the LISN which has a metal enclosure and strap produces a voltage level value thatis smaller than the grounding system without metal and strap, which is about 1.7 dBuV for EUTTelevision and 1.2 dBuV for EUT Monitor PC.