Power
and power budget at every point of its operational lifecycle.
In Omron’s case, these calculations are done for the first 30,000 electrical operations, at which point the G9KA typically demonstrates only negligible drift in contact resistance of around 0.05 milliohms, far outperforming comparable products. With two relays in series for redundancy, the likelihood of failure in normal operating conditions is practically nil, with minimal change in performance from the beginning to the end of the inverter’s operational life.
Safety and longevity Even a small change in effi ciency can make a big difference to the amount of heat generated. A load terminal and surrounding surface temperature above 115˚C will prematurely age components, while temperatures even higher than this can increase the risk of eventual arcing and even catastrophic failure. Internal forced air conditions typically deployed help to maintain temperatures, but a relay must also be part of a good overall system design to ensure that heat dissipation across all components is managed effectively.
On the DC panel side and input to solar PV inverters Omron’s G9KB uses arcing control technology, utilizing permanent magnetism to stretch or elongate the arc. When stretched in the direction of the current flow, the arc can be extinguished more easily, improving system safety while reducing the likelihood of catastrophic failure.
In summary
PCB relay designs have opened up exciting new avenues for the evolution of solar PV technology. PCB systems can help to reduce design cycles, and allow engineers to harness greater flexibility to improve their products. It also helps designers to achieve higher
Improving Energy Efficiency with UV Cure Adhesives
Technological advancements in adhesives mean technical specialists TECHSiL are well placed to provide adhesive solutions which look to reduce energy consumption and revolutionise assembly lines of electronic components.
Benefits of UV Cure over traditional adhesives in electronics assembly: • Faster Curing Time • Lower Energy Consumption • Precision Application • Reduced Thermal Stress • Instant Bonding
• Lower Production Footprint • Elimination of Solvents • Improved Reliability
• 01789 773232 •
technical@techsil.co.uk •
www.techsil.co.uk
www.cieonline.co.uk.
Speak to the Technical Team at TECHSiL to see how we can help with your next generation
design challenges.
outputs within smaller designs. Against the backdrop of the drive towards net zero, relay manufacturers like Omron are helping to accelerate the transition towards a cleaner grid.
https://components.omron.com/eu-en/
Components in Electronics
November 2023 45
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