7.4.2.25 IfcTransformerTypeEnum
7.4.2.25.1 Semantic definition
The IfcTransformerTypeEnum defines the range of different types of transformer that can be specified.
7.4.2.25.2 Type values
| Type | Description | 
|---|---|
CHOPPER
 | 
 A chopper is an electronic power DC convertor without an intermediate AC link giving a variable output voltage by varying the periods of conduction and non-conduction in an adjustable ratio.  | 
COMBINED
 | 
 A transformer that changes different quantities between circuits.  | 
CURRENT
 | 
 A transformer that changes the current between circuits.  | 
FREQUENCY
 | 
 A transformer that changes the frequency between circuits.  | 
INVERTER
 | 
 A transformer that converts from direct current (DC) to alternating current (AC).  | 
RECTIFIER
 | 
 A transformer that converts from alternating current (AC) to direct current (DC).  | 
VOLTAGE
 | 
 A transformer that changes the voltage between circuits.  | 
USERDEFINED
 | 
 User-defined type.  | 
NOTDEFINED
 | 
 Undefined type.  | 
7.4.2.25.3 Formal representation
TYPE IfcTransformerTypeEnum = ENUMERATION OF
	(CHOPPER
	,COMBINED
	,CURRENT
	,FREQUENCY
	,INVERTER
	,RECTIFIER
	,VOLTAGE
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;