Why do AC motors draw a larger current when they are first turned on than they do after they have spun up to full speed? What causes heating effect of electric current? Why are ordinary circuit breakers and fuses ineffective in preventing shocks? What household items have electrical ...
Third harmonic generation devices include : energy - saving lamps, fluorescent lamps, computers, inverter air conditioners, microwave ovens, light current, welding equipment, UPS power. Such as energy - fluorescent lamp tube arc of Harmonic Current of the main negative resistance to the third ...
1.1 This part of CISPR 14 deals with the electromagnetic immunity of appliances and similar apparatus for household and similar purposes that use electricity, as well as electric toys and electric tools, the rated voltage of the apparatus being not more than 250 V for single-phase apparatus to ...