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LXCOS Family

LXCOS Family

2021 Release of newest LXCOS family members & firmware version 1.4.5 

 LXCOS AC 100-480 Volt 50/60 Hertz generators, 7 Amp
 LXCOS_LITE AC 100-480 Volt 50/60 Hertz generators, 3.5 Amp lower height and weight
 LXCOS_DC X DC 12 – 375 Volt range AVR for DC-, or rectified AC generators (DC bus). X can be : 1:12V, 2: 24-220V, 3: 225-375V
 LXCOS_ST XX AC 100-480 Volt 50/60 Hertz slipring generators for external power stage (static exciter). XX stands for the required excitation current.

What remains unchanged:

Proven, reliable, Marine Type approved, robust and easy to apply design, as well known for years.
Extremely compact, versatile, competitive, strong automatic voltage regulator.
For the toughest generator and environmental conditions and special applications.

What’s new in product version V1.4.5:

  • Added extended functionality.
  • Inputs can be assigned to multiple functions.
  • LXCOS Lite hardware version.
  • LXCOS ST version (static exciter version).

Multiple operation modes selectable within one AVR by two digital inputs:

Modes:

 –Voltage mode 
 –Droop for paralleling to other generators 
 –Power Factor controlQPF           
 –Volt per Hertz characteristicsUF
 –Voltage Matching (equalization to grid Voltage)CUN
 –Excitation limitingER1
 –Current limiting 
 –Current control (soft start, motor starting)SR2
 –0-100% Voltage or current)ES
 –Excitation current control 
 –kVA control 
 –50/60 Hz mode selection 
 –Inverted modeN11

Raise Lower commands (electronics motorized potentiometer) for setpoints:

 –Voltage 
 –Power factorQPF mode
 –kVARQPF
 –0-100 % Voltage or Current modeUF
 –Excitation current regulation modeFCR
 –Zero the electronic motorized potentiometer 

Analogue inputs for:

 –Setpoint offset control, – 40% / + 40 %.SWU2        
 –Voltage matchCUN
 –0-100 % Setpoint (Voltage, Current)ES
 –Power Factor Setpoint offset control. 
 –kVAR Setpoint offset control 
 –Power Factor control between two Setpoints 

Protections:

 –Loss of sensing (volt & current)                 
 –Excitation (over-, under-excitation / loss) 
 –Overvoltage 
 –Overtemperature (AVR and/or generator) 
 –Phase sequence / connection 

To access all newest features an AVR Assistant with version V1.4.5 for the LXCOS is necessary. If you do not have one yet, inform for the introduction kit, or else use the free EMRI upgrade service for the AVR Assistant.

Bram de Vreede
Bram de Vreede

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