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  • What is ‘Assist Current Boost Factor’ setting in VictronConnect with Multiplus

    Posted by maxalight on January 20, 2024 at 8:01 am
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    In the VictronConnect app, under ‘Inverter’ settings (after connecting my Multiplus-II to my computer, using the MK3 USB interface device), there’s a setting for ‘Assist Current Boost Factor’ typically set to a value of 2. Could you explain the purpose of this setting and the implications of changing it?

    Photon replied 5 months, 2 weeks ago 2 Members · 1 Reply
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  • Photon

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    January 20, 2024 at 9:02 am
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    The ‘Assist Current Boost Factor’ in the VictronConnect app is part of the PowerAssist feature and is used to determine how much additional current the MultiPlus inverter/charger will provide when assisting an external AC source.

    Function:

    • This setting multiplies the AC input current limit to calculate the maximum amount of current the inverter will add when PowerAssist is active. If the setting is 2 (the default and considered a safe value), and the AC input current limit is set to 10A, the inverter can supply up to an additional 20A (2 times 10A) to support the load without tripping the input circuit breaker.

    Safety Margin:

    • By default, this factor is set to 2 to ensure that the inverter can handle small peaks in power demand safely. This helps prevent overloading the system’s circuit protection by providing a buffer.

    Caution in Adjustment:

    • It is crucial to be careful when changing this setting, as setting it too high could risk overloading the circuit protection of your input source, leading to potential safety hazards.

    • Conversely, setting it too low may not provide enough support to prevent the circuit breaker from tripping during high demand.

    Considerations:

    • Before making any changes, you should fully understand the capabilities of your input source and the total potential load on your system.

    • It’s also important to consider the implications of additional battery discharge that may occur as a result of a higher boost factor.

    In essence, the ‘Assist Current Boost Factor’ is a fine-tuning tool that helps balance between providing adequate support to prevent input source overload and ensuring the safety and longevity of your system components. Adjustments to this setting should be made with a thorough understanding of your system’s electrical characteristics and requirements.

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