#### 7.2.2.7 IfcElectricFlowStorageDeviceTypeEnum

The IfcElectricFlowStorageDeviceTypeEnum defines different types of electrical flow storage devices.

> HISTORY New type in IFC2x2.

Enumerated Item Definitions:

- BATTERY: A device for storing energy in chemical form so that it can be released as electrical energy.
- CAPACITORBANK: A device that stores electrical energy when an external power supply is present using the electrical property of capacitance
- HARMONICFILTER: A device that constantly injects currents that precisely correspond to the harmonic components drawn by the load.
- UPS: A device that provides a time limited alternative source of power supply in the event of failure of the main supply.
- USERDEFINED: User-defined type.
- NOTDEFINED: Undefined type.

XSD Specification:

<xs:simpleType name="IfcElectricFlowStorageDeviceTypeEnum">
<xs:restriction base="xs:string">
<xs:enumeration value="battery"/>
<xs:enumeration value="capacitorbank"/>
<xs:enumeration value="harmonicfilter"/>
<xs:enumeration value="inductorbank"/>
<xs:enumeration value="ups"/>
<xs:enumeration value="userdefined"/>
<xs:enumeration value="notdefined"/>
</xs:restriction>
</xs:simpleType>

EXPRESS Specification:

TYPE IfcElectricFlowStorageDeviceTypeEnum = ENUMERATION OF (
| BATTERY, CAPACITORBANK, HARMONICFILTER, INDUCTORBANK, UPS, USERDEFINED, NOTDEFINED);
END_TYPE;

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