Special for electric welding machine

Due to its special working environment and high requirements for capacitor performance, it is very important to select suitable aluminum electrolytic capacitors for electric welding machines. The following are some guidelines and recommend on the use of aluminum electrolytic capacitors in electric welding machines:

Key parameters and characteristics

Capacitance and withstand voltage：

• capacitance: The filter capacitor in the electric welding machine usually requires a large capacitance, ranging from hundreds of microlaw to thousands of microlaw.
• Withstand voltage value: Choose a capacitor whose withstand voltage value is 20-30% higher than the actual working voltage to ensure safety and life.

Low ESR (equivalent series resistance): Low ESR capacitors can effectively reduce power loss and heat generation, and improve power efficiency and stability.

High ripple current capability: The electric welding machine will produce large current fluctuations when it is working. The capacitor with high ripple current capacity can withstand these fluctuations and improve the stability and reliability of the power supply.

Temperature stability: Choose capacitors with a wide temperature range (such as -40°C to 105°C) to ensure stable operation in high temperature and harsh environments.

Long life and high reliabilityWelding machines usually require capacitors to have a long life (such as 5000 hours or more) to ensure long-term stable operation of the equipment.