T1689 Technical Manual Rev 07 Specification
MV3000 Air Cooled DELTA Reactors, Inductors & Transformers
Page 63
2.13.2.3 Interface
• The airflow path is the same as DELTA modules.
• Cross-rail fixing positions are the same as DELTA modules.
• Phase connections are made by busbar or cable between the rectifier module and reactor.
• The module earth connection is made via M10 stud connection.
2.13.2.4 External Requirements
• This module must be used with the DELTA Cooling System to obtain the full current rating.
• The reactor requires an additional 250mm (9.84”) of cross rail to attach to the standard DELTA
cross rails – this may increase overall cubicle width.
• An external 230V a.c. supply is required to power the DELTA Cooling System.
• An additional set of air inlet / outlet ducts are required to properly channel the cooling path using
these modules.
NOTE: These reactors will not fit into a 600mm deep cubicle without modification.
2.13.3 D.C. Link Inductor for DFE Drives
This inductor is used in conjunction with the DFE input reactor, to provide a more continuous current into the
machine bridge and reduce the harmonics that the drive imposes on the supply. This item is mandatory when
using three-phase, 6 pulse, rectifier modules.
NOTE: When using twelve pulse rectifier modules the use of an Interbridge transformer replaces the mandatory
requirement for the d.c. link inductor.
Figure 2–24. – DC Link Inductor
These naturally ventilated inductors are used with 6 pulse input rectifiers - see Table 2–32.
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