Low voltage disconnect parameter

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Revision as of 09:23, 19 January 2021 by Alex (talk | contribs) (Text replacement - "system voltage parameter" to "DC system voltage")
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The low voltage disconnect parameter is the value at which system components - the low voltage disconnect charge controller and inverter - stop supplying power to loads. The low voltage disconnect function is important to protect the energy storage system against damage from over-discharge. This value depends upon the DC system voltage, the battery type, and the system usage. It is important to protect the energy storage system, but also to use a value (or inverter programming) that does not lead to the system regularly turning off loads during periods of heavy usage that cause voltage to drop. The low voltage disconnect parameter is used to deteremine the maximum amount of current for Wire and overcurrent protection sizing and selection in the inverter circuit.

  • Minimum recommended value for lead acid batteries: 11.5 V for a 12 V system. 23 V for a 24 V system. 46 V for a 48 V system.
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