Brochure
Key benefits — Choice of input rectifier
AFE system architecture
Diode Front-End (DFE)
The flexibility of the MV6 Series choice
of integrated transformer and 36 pulse
DFE product allows for clean harmonic
input signature for applications that
only require two quadrant motoring
operation. The input transformer is
prepackaged and allows for ease of
application to customer utility systems
where the input voltage may be higher
than the motor voltage. Commonality
is maintained in the VFD inverter
power modules to the AFE option
to allow for overall low spare parts
inventory.
DFE with transformer
• Integrated transformer simplifies
installation and commissioning
• 36 pulse rectifier helps simplify
input harmonics
• Line side connection flexibility with
choice of input voltages- 3.3, 6, 6.6,
6.9, 10, 11, 13.2 & 13.8 kV
• Provides .96 true input power factor
across speed range (20-100%
load). No power factor correction
capacitors required.
Active Front-End (AFE)
The flexibility of the MV6 Series choice
of AFE allows for a clean harmonic
input signature for applications that
require motoring and regenerative
breaking operations. The AFE
transformerless design provides an
overall higher efficiency (>97.5%)
reducing operating costs. This design
greatly reduces control room heat load
therefore requiring less space and
HVAC requirements. Due to the smaller
size and low weight the AFE also offers
lower transportation costs.
Transformerless AFE
• Simpler, smaller and lighter, while
limiting the supply harmonics and
increasing the motor insulation life
• Mitigates input harmonics and is
more supportive to grid transitions
• Reduced heat load and smaller
space and HVAC requirements in the
control room
• Provides unity input power factor
across speed range. No power factor
correction capacitors required. VARs
can be supplied to utility as an option
• Four quadrant operation
— Ability to transmit power back
to the utility lines, helping to
save energy
— Inherent braking capability to slow
high inertia loads quickly such as
ID fans without the needs from
braking resistors
— Excellent ability to overhaul loads
such as downhill conveyors
36 pulse DFE system architecture with flexible input voltage.
Sinus
filter
76 GE I MV6 SeriesGE I MV6 Series