How do you choose the right power capacitor? We all know that the primary function of power capacitors is to compensate for capacitive loads on the power grid, reducing reactive losses and thereby improving grid operation. In a complex market, choosing the right capacitor is a constant challenge for many users. The following points are provided for your reference.
1. Purchase power capacitors directly from the manufacturer or a dealer authorized by the manufacturer.
This prevents the purchase of counterfeit and inferior products.
2. When selecting a power capacitor, pay attention to the integrity of the product's appearance, ensuring it is free of damage, and to the complete manufacturer's name, address, warranty card, certificate of conformity, and instruction manual. (If the manufacturer's name is incomplete, such as "Xituo," the complete name should be "Xituo Electric (Shanghai)." Avoid purchasing products with unknown mailing addresses to prevent potential accidents.) Before purchasing, contact the manufacturer to verify the product's after-sales service and other details.
3. When purchasing power capacitors, users should also pay attention to various data on the label: such as rated capacity (KVAR), capacitance (UF), and current. It's best to measure them with a UF meter and insulation resistance with a megohmmeter. If possible, the manufacturer of complete sets of equipment can spot-check whether the withstand voltage meets national standards.
When purchasing power capacitors, users shouldn't simply focus on price. As the saying goes, "cheap goods are not good, and good goods are not cheap." Generally, product prices vary based on their cost. For example, the quality of the raw materials used in manufacturing power capacitors comes in two types: aluminum film and zinc-aluminum film. The prices of these two types vary significantly. Capacitors made with zinc-aluminum film are relatively expensive, and naturally, their quality also differs. Furthermore, first- and second-rate capacitor films vary in price and quality. Therefore, when purchasing capacitors, price is secondary; product quality is paramount.