UPS + Generator Compatibility
Rectifier type, harmonic current, and the sizing ratio that keeps a UPS from shutting a generator down.
Result
Generator to rectifier ratio
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Rectifier input demand
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Generator rating this UPS needs
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UPS rating
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Formula
Calculation logicWhat to check
- UPS input current THD from the datasheet at partial load
- Generator manufacturer guidance on non-linear load
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Size a battery bank for a critical load and an autonomy target, then check how long the generator takes to recharge it.
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