MV VFD has designed an optimum inner panel through heat analysis;
it promotes to get the most out of space.
Energy Saving & High Efficiency
MV VFD realizes high efficiency and high power factor more than 95% without any compensation tools.
MV VFD realizes perfect energy saving VFD system without input/ output filter.
Redundant Cell Power Factor Control
MV VFD has no extra charge for low power factor.
MV VFD' s voltage regulation is advanced.
MV VFD keeps High pwer factor with standard induction motor in all of the speed range. ( More than 95% )
Medium Voltage Drive
Perfect Energy Saving Solution
Ptoduct overview Medium Voltage Drive
The most effcient energy management for great
High rellability due to cascade topology
High performance for stable system
User friendly monitoring system
Easy to maintain due to Cell Bypass function
THD : IEEE standard 519-1992 satisfied
MV drive is composed of 4 primary parts
H-Bridge Multi Level Cascade Topology
Cascade method means that single-phased low voltage cells are connected in series to generate medium voltage.
The Characteristics of H-Bridge Multi-Level Cascade Type
Uses the Multi-winding transformer with phase shift
Decreased input THD( No Input Filter Required)
Multi Level PWM generates Sinusoidal Output Wave Form
Decreased output THD ( No output filter required)
Decreased common mode voltage and leakage current
Easy to increase the output voltage due to Power Cell
In case of cell failure during operation, the fault cell is bypassed
Less affected by reflected voltage, which makes long distance cable to the motor
THD : IEEE Standard 519-1992 Satisfied
High Functionality & Performance for stable system
Powerful torque control
In case of more than 2 fans operated in one system or heavy fan spinning by inertia, MV Drive detects motor’ s speed and is able to control motor effectively.
Built-in Cell Bypass
In case of cell failure during operation, the MV Drive can drive continuously after bypassing the faulty cell.
Fan speed control by temperature
LS MV Drive controls the fan speed depending on its internal temperature, so that it decreases noise and extends lifetime of the fan.
Redundant control power and optical communication
Various communication options
DeviceNet, CANOpen, Profibus-DP, LonWorks, Modbus-RTU and so on.
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