Vertiv™ Liebert® AF4
Vertiv proudly introduces its first product line-up "Vertiv™ Liebert® AF4" an Active Harmonic Filter (AHF) to cater to the present industrial needs.
Benefits & Features
Features
Harmonic Mitigation
Vertiv™ Liebert® AF4 assures the plant current THD to stay below the limits specified by the IEEE 519-1992 with full dynamic compensation.
Power Factor Control
Vertiv™ Liebert® AF4 ensures unity power factor operation of the plant. Fully dynamic compensation adaptive to load changes.
Wide Range of Harmonic Selection
Ability to cancel all odd harmonics up to 51st order. These harmonics are individually selectable/programmable with on limitation.
Current Balancing
Vertiv™ Liebert® AF4 assures the plant current drawn from the EB to be balanced and sinusoidal.
Optimum Design
Light in weight, compact in size, quiter in operation, and best in the performance.
No Prerequisite
Vertiv™ Liebert® AF4 in general, does not require the installation of input chokes with VFDs, as long as the load current THD is below 40%.
Energy Efficiency
Vertiv™ Liebert® AF4 consists of an intelligent on the fly real-time internal switching loss minimization technique to enhance the internal energy
Neutral Current Compensation
A 3P4W Vertiv™ Liebert® AF4 fully supports the load neutral current locally, and assures zero neutral current on the source/EB side.
Keywords
51st order
Wide Range
input chokes
odd harmonics
source/EB side
Optimum Design
internal energy
load current THD
Energy Efficiency
Current Balancing
Harmonic Selection
zero neutral current
load neutral current
Power Factor Control
first product line-up
Active Harmonic Filter
present industrial needs
full dynamic compensation
Fully dynamic compensation
A 3P4W Vertiv™ Liebert® AF4
Neutral Current Compensation
unity power factor operation
Features Features Harmonic Mitigation
real-time internal switching loss minimization technique
