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When your grid voltage averages around 230-235V, it’s generally close to the nominal voltage for which most equipment is rated. To set the upper voltage limit on your MultiPlus-II 230V:
Consider Voltage Fluctuations:
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Allow for normal fluctuations that may occasionally exceed your average. It’s not unusual for grid voltage to swing above the average by a small margin.
Setting the Upper Limit:
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Given your average is 230-235V, a sensible upper limit could be set at around 250V. This would provide a buffer to accommodate occasional surges while preventing the inverter from shutting down during normal fluctuations.
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However, if you have sensitive equipment that could be damaged by voltages slightly higher than 235V (such as a PC power supply that are generally rated to 240V max), then you might opt for a lower setting, like 240V or 245V, for added protection.
Monitoring and Adjustment:
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It’s important to monitor your grid voltage over time to see how much it varies. If you notice regular excursions above 235V, you may need to adjust the upper limit accordingly.
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Always consider the voltage tolerance of your connected devices. The inverter should cut off the supply to protect your equipment if the grid voltage exceeds safe levels.
Use of Protective Devices:
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Ensure that your system includes surge protection and that any circuit breakers or fuses are rated for the maximum current your installation might draw at the higher end of your voltage setting.
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