How Does Moisture Affect The Insulation Performance Of Frequency Converters Over A Long Period Of Time?

Moisture, appearing as fine water mist, ambient humidity, or condensation within the equipment, gradually seeps into the interior of solid state frequency converter. This infiltration process exerts long-term stress on the insulation structure of frequency converter 50hz to 60hz 3 phase. Insulating materials are designed to block current and maintain dielectric properties; moisture ingress alters the physical properties of the insulating medium, thus affecting its electrical behavior.

Once moisture enters the insulating components, it changes the conductivity of the insulation layer, causing normally non-conductive materials to exhibit measurable leakage current. Over time, the adsorbed moisture reacts with the internal structure of the insulating material, reducing the dielectric strength of the insulation. For the 240v 50hz to 120v 60hz converter, key internal electronic modules such as capacitors and IGBTs are closely connected to the insulation system. Once the local insulation deteriorates, it will increase the electrical stress on other components and may lead to partial discharge.