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Key benefits
• Simpler, smaller and lighter, while
limiting the supply harmonics and
increasing the motor insulation life
• Reduced heat load and smaller
space and HVAC requirements
in the control room
• Lower transportation costs due to
the smaller size and low weight
• Easy power module replacement
• Common building blocks – reduced
spare parts cost and lower cost of
ownership
• Power scalability
• Enclosure and doors reinforced
against arc flash effect
• Equipped with over-pressure
relief vents
The MV4 Series utilizes rugged IGBT
power modules that provide high
reliability with a low life-cycle cost.
The modular design includes common
power modules that are used for both
Active Front End (AFE) and inverter.
The standard power module reduces
the overall MTTR (module replacement
in five minutes) and increases the
availability of the drive.
VSI
(Transformer + DFE)
CSI AFE
MV4 Series drive
(VSI AFE)
VFD 98% 97% 97.5%
Transformer 98% – –
System Efficiency 96% 97% 97.5%
VSI: Voltage Source Inverter; CSI: Current Source Inverter; AFE: Active Front End; DFE: Diode Front End; Efficiency at full load and full speed
The MV4 Series drive can be supplied
with power channel isolating
contactors to allow for continued
operation in the event of failure of one
of the parallel power sections. In that
case, the VFD control will determine
the failed power section, isolate it and
restart into the spinning motor.
The VFD output power is reduced, and
the motor load is limited to the VFD
available power. The VFD can then be
repaired during a scheduled downtime.
• Three cables in; three cables out
• Top, bottom or both cable entry/exit
• Quick installation for lower cost of
ownership
• Less process downtime for greater
plant output
In addition to power channel bypass
the VFD can be supplied with an
optional N+1 redundant power
channel. With this option, the VFD will
continue to operate at full power in the
event of a power channel failure.
• 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 need for braking
resistors
• Excellent ability to overhaul loads
such as downhill conveyors
Modular construction
Arc flash protected — design
for personnel safety
Transformerless AFE design
The transformerless design delivers higher efficiency for greater available power.
Low losses reduce air-conditioning requirements in the control room and overall
cost of ownership.
Quick and easy installation Four quadrant operation
Power channel bypass
option
VFD can operate at reduced power with a failed channel.
Power channel bypass
with N+1 redundancy option
VFD can operate at full power with a failed channel.
High efficiency and low losses
High availability
76 GE I MV4 SeriesGE I MV4 Series