IfcElectricMotorTypeEnum

Natural language names
enElectric Motor Type Enum
frEnumération des types de moteur électrique
Semantic definitions at the type
Type definition

The IfcElectricMotorTypeEnum defines the range of different types of electric motor that can be specified.

HISTORY  New type in IFC2x2.
Enumeration definition
ConstantDescription
DCA motor using either generated or rectified Direct Current (DC) power.
INDUCTIONAn alternating current motor in which the primary winding on one member (usually the stator) is connected to the power source and a secondary winding or a squirrel-cage secondary winding on the other member (usually the rotor) carries the induced current. There is no physical electrical connection to the secondary winding, its current is induced.
POLYPHASEA two or three-phase induction motor in which the windings, one for each phase, are evenly divided by the same number of electrical degrees.
RELUCTANCESYNCHRONOUSA synchronous motor with a special rotor design which directly lines the rotor up with the rotating magnetic field of the stator, allowing for no slip under load.
SYNCHRONOUSA motor that operates at a constant speed up to full load. The rotor speed is equal to the speed of the rotating magnetic field of the stator; there is no slip.
USERDEFINEDUser-defined type.
NOTDEFINEDUndefined type.
Formal representations
XSD Specification
 <xs:simpleType name="IfcElectricMotorTypeEnum">
  <xs:restriction base="xs:string">
   <xs:enumeration value="dc"/>
   <xs:enumeration value="induction"/>
   <xs:enumeration value="polyphase"/>
   <xs:enumeration value="reluctancesynchronous"/>
   <xs:enumeration value="synchronous"/>
   <xs:enumeration value="userdefined"/>
   <xs:enumeration value="notdefined"/>
  </xs:restriction>
 </xs:simpleType>
EXPRESS Specification
TYPE IfcElectricMotorTypeEnum = ENUMERATION OF (
 DC,
 INDUCTION,
 POLYPHASE,
 RELUCTANCESYNCHRONOUS,
 SYNCHRONOUS,
 USERDEFINED,
 NOTDEFINED);
END_TYPE;

Link to EXPRESS-G diagram EXPRESS-G diagram

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