7.4.2.13 IfcElectricMotorTypeEnum
7.4.2.13.1 Semantic definition
The IfcElectricMotorTypeEnum defines the range of different types of electric motor that can be specified.
7.4.2.13.2 Type values
| Type | Description |
|---|---|
DC
|
A motor using either generated or rectified Direct Current (DC) power. |
INDUCTION
|
An 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. |
POLYPHASE
|
A two or three-phase induction motor in which the windings, one for each phase, are evenly divided by the same number of electrical degrees. |
RELUCTANCESYNCHRONOUS
|
A 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. |
SYNCHRONOUS
|
A 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. |
USERDEFINED
|
User-defined type. |
NOTDEFINED
|
Undefined type. |
7.4.2.13.3 Formal representation
TYPE IfcElectricMotorTypeEnum = ENUMERATION OF
(DC
,INDUCTION
,POLYPHASE
,RELUCTANCESYNCHRONOUS
,SYNCHRONOUS
,USERDEFINED
,NOTDEFINED);
END_TYPE;