Is the performance loss of photovoltaic connectors inevitable or preventable?

In the field of solar photovoltaic power generation, photovoltaic connectors, as a "bridge" between components, shoulder the important mission of transmitting current. However, will there be performance loss in the long-term use of photovoltaic connectors?

   Shunkonn solar connector

The role and importance of photovoltaic connectors

Photovoltaic connectors, commonly known as "photovoltaic connectors", are an important part of the connection between photovoltaic modules, modules and brackets, modules and inverters and other equipment. It has the following three characteristics: 

high reliability：Photovoltaic connectors need to ensure that they can maintain good performance in outdoor environment and withstand harsh conditions such as wind, sun and rain for a long time.

Excellent electrical conductivity：Photovoltaic connectors need to have low contact resistance to ensure efficient current transmission.

Easy to install and maintain：The design of photovoltaic connectors should be easy for on-site installation and later maintenance to improve the operation efficiency of photovoltaic power generation system.

Causes of photovoltaic connector performance loss

environmental factor：Exposed outdoors for a long time, photovoltaic connectors are vulnerable to ultraviolet light, ozone, salt and other erosion, resulting in material aging and increased contact resistance.

temperature effect：During the operation of photovoltaic power generation system, the temperature fluctuates greatly. Temperature changes will lead to inconsistent thermal expansion coefficient of connector materials, resulting in poor contact.

Vibration and shock：Natural factors such as wind, earthquake and human factors may cause vibration of photovoltaic modules, loosen connectors and affect electrical conductivity.

oxide etch：The contact part of the connector is prone to oxidation and corrosion under high temperature and high humidity, which leads to the increase of contact resistance.

Shunkonn 1000V solar photovoltaic connector

Measures to prevent performance loss of photovoltaic connectors

Choose quality connectors：Choose photovoltaic connectors with high brand awareness and stable performance to ensure that they have good conductivity, corrosion resistance and anti-aging performance.

Regular inspection and maintenance：The photovoltaic connectors were inspected regularly, and problems such as loosening and oxidation were dealt with in time to ensure that the connectors were in good condition.

safeguard procedures：Apply protective agent on the connector surface to reduce the influence of environmental factors such as UV and ozone on the connector.

optimization design：In the design process of photovoltaic power generation system, the installation position of connectors, heat dissipation conditions and other factors should be fully considered to reduce the influence of temperature on the performance of connectors.

Maintain and extend the service life of photovoltaic connectors

keep clean：Clean the dust and dirt on the surface of the connector regularly to prevent pollutants from invading the interior of the connector.

swabbing：Apply conductive grease to contact parts of connectors to reduce contact resistance and improve electrical conductivity.

Moisture and mildew proof：In humid environment, the connector should be moisture-proof to avoid mildew inside the connector.

Shunkonn 1500V solar photovoltaic connector

As an important part of photovoltaic power generation system, the performance loss of photovoltaic connector can not be ignored. By analyzing the causes, taking preventive measures and maintaining, we can effectively reduce the performance loss of photovoltaic connectors and ensure the efficient and stable operation of photovoltaic power generation systems.        

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