Reasons that affect the capacity of film capacitors: The capacity of the film capacitor depends on the area of the film metal layer, so the decrease in capacity is mainly caused by the reduction of the area of the metal plating layer affected by external factors. In the capacitor manufacturing process, there is a trace of [...]
"The infectivity of new mutant strains has increased sharply" and "Britain upgrades epidemic prevention and control"... Since the outbreak of the new crown epidemic, the evolution of the virus has always been the focus of attention, and the latest mutated new coronavirus virus reported in the UK has caused public concern. Due to the recent emergence [...]
How to discharge an electrolytic capacitor 1. For small lead aluminum electrolytic capacitors, just short-circuit and discharge them directly, but generally we don't recommend them. 2. For the horn-type electrolytic capacitor with a little larger capacity, you can make a 220v/60-100w bulb, or use a resistor to discharge slowly. 3. For bolt-type high-voltage and large-capacity electrolytic [...]
Reference News Network reported on December 17 that the US media said that the funds raised by Chinese companies in initial public offerings (IPOs) at home and abroad are unprecedented, accounting for nearly 40% of the total global IPOs, partly because the country was the first to overcome the epidemic. Chinese [...]
Fan start capacitor connection detection method Household electric fans use single-phase AC motors, so only one live wire and one neutral wire can work normally, but in order to protect the motor, an additional electric fan starting capacitor needs to be installed, which can avoid the time of starting The winding is burnt out because of [...]