Experimental impact analysis of the refrigerator cable distributions on conducted electromagnetic emission

Abstract

As the number of electronic devices in our daily lives increases day by day, the risk of electromagnetic interference (EMI) between the devices and between the device and the grid increases. Refrigerators are the only devices found in almost every home and work non-stop. For this reason, refrigerators have importance in terms of electromagnetic interference. Three refrigerators with different cable distributions have been prepared for this research. Conducted emission tests have been performed for phase lines and neutral lines to examine the impact of the cable distributions on EMI. In some cases, separation of AC and DC cables improved the noise values by around 2-4 dB at most of the frequencies; however, in some cases, the results were so worse that the product failed the test.