Harmonic Filters

  • high efficiency of filtration and harmonic currents mitigation
  • energy saving 
  • efficient alternative
    to multi-pulse systems
  •  reduction of negative impact of the inverter on the network
  • compatibility of the drive according to IEEE 519-1992 and PN-EN 61000-3-12
   

 TYPICAL APPLICATIONS : 

  

 
 

 

EXAMPLES OF APPLICATIONS:

 

  • at the input of 6-pulse frequency inverter rectifiers
  • power systems with a high concentration of
    non-linear receivers connected to the same transformer
  • as a cheaper and more efficient alternative
    to the 12- and 18-pulse systems
  • UPS systems and industrial automation equipment
  • rectifier chargers 
  • other nonlinear receivers 

 WHAT DISTIGUISHES ElhandHF TM FILTERS?

  • effective reduction and mitigation of harmonic currents within a wide range of load levels
     
  • definitely lower losses, noise reduction and elimination of external leakage field resulting
    from the use of innovative, low-loss technology: ElhandCutCore TM
  • very low consumption of capacitance current (<30%In) thanks to the use of smaller capacity
  • high efficiency + natural convective cooling – this results in energy saving, longer durability and reliability (much higher than in the case of often unreliable fans)
  • easy activation and operating costs reduced to a minimum 
     
  • compact design and high quality of performance

 

APPLICATION OF MULTI-GAP CORES DESIGNED ACCORDING
TO ElhandCutCore TM TECHNOLOGY MEANS:

 

  • lower losses and temperature
  • low noise level
  • elimination of the external magnetic field
  • elimination of additional losses in structural
    elements
  • a constant value of the filter’s parameters
    within a wide range of changing current values

 TECHNICAL SPECIFICATION:

Rated voltage up to 690Vac ± 10%
Operating frequency up to 60Hz ± 1Hz
Source impedance from 1,5% up 6%
Load 6-pulse rectifier
Rated power up to 1200kW
Efficiency > 98,5% for nominal power
Total harmonic current distortion THDi < 5% for nominal power
Capacitance current < 30% of the input current
High potential test voltage 2,5kVac (1min)
Overload capability 110% continuous
160% rated current for 1min, once per hour
Cooling natural AN
Ambient temperature range -25oC do +55oC during continuous work
-25oC do +85oC during transport and storage
Isolation class F(155oC) or H (180oC)
Degree of protection IP00, IP23, IP44, IP54, IP66

 * filters can be made with different parameters extending beyond the ranges given above

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