IFC 4.3.0.1 (IFC4X3) development

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.

Table 7.4.2.25.A

7.4.2.25.3 Formal representation

TYPE IfcTransformerTypeEnum = ENUMERATION OF
	(CHOPPER
	,COMBINED
	,CURRENT
	,FREQUENCY
	,INVERTER
	,RECTIFIER
	,VOLTAGE
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;

7.4.2.25.4 References

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7.4.2.25.5 Changelog

  • item, INVERTER
  • item, RECTIFIER
  • item, CHOPPER
  • item, COMBINED