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How can a 24 v battery start a 80 kw emergency generator?
Joeyfaith
The 24v battery is used to provide the initial field current. This couples to the stator windings, and as the generator spins induces a voltage on the stator windings, which causes back EMF onto the field windings (when load is present), which slows the generator's spin until the governor kicks in to bring it back up to speed.
The important thing to note is the output power of the generator is not a factor of the 24v field voltage, it is directly dependent upon the fuel being used to get the generator spinning. The 24 volts just "jump starts" the field voltage. Think of it as synonymous with the 12 volt battery that starts your car.
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∙ 13y ago
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Wiring 12 volts DC to get 24 volts DC?
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Why DC battery is required for generator?
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What is the difference between prime rating KVA and standby KVA?
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