uk

Mains Chokes

Mains Chokes

Reduce noise and save money with mains chokes

A line reactor relieved the supply network by compensating the harmonics reactive power, The harmonics are greatly reduced .

The conditional by the operating principle of rectification very high current peak is attenuated by the inductance by more than 60 %.

 Why the additional installation of a line reactor ?

- Attenuation of the very high current peaks up to 40%

- Minimizing the deformation of the sinusoidal mains voltage

- Discharge of the supply system by reactive power compensation

- Limitation of mains disturbances like voltage sags and spikes



  • CNW 903

    Three-phase mains choke 4% Uk

    CNW 903
    • Nominal Voltage: 3 x 500 V
    • Rated current: 3-1200 A
    • Inductance: 9,800-0,024 mH

    Power Noise Reduction - save up to 20% energy costs. A mains choker relieved the supply network by compensating the harmonics reactive power. The harmonics and commutation notches are reduced strongly. By using a mains choke the inverter electronics and DC-capacitors will be protected.


    Starting currents and current peaks are reduced up to 60%. Mains chokes helps to comply with international power quality standards IEEE 519 or EN 61000-3-2.



    • Rated voltage: U ≤ 3 x 500 V 

    • Short circuit: Uk 4% (400VAC/50Hz, INenn)

    • Frequency: 50/60 Hz

    • According to: EN 60289 / EN 61558

    • Test voltage: L-L 2500 V, DC 1min; L-PE 2500 V, DC 1min

    • Insulation class: T40/F

    • Protection rating: IP00

    • Climatic categorie: DIN IEC 60068-1

    • Overload: 1,5 x INenn 1 min / h

    • Design: mounted on footprint


     


    Typical applications



    • Drive systems for motor drives:


      • Mechanical engineering

      • Elevators / escalators

      • Pipes

      • Conveyor technology

      • Ventilation and air conditioning

      • Robotics

      • Automation technology


    • Power supplies

    • Wind turbines



  • CNW 905

    Three-phase mains choke 2% Uk

    CNW 905
    • Nominal Voltage: 500 V
    • Rated current: 3 - 1200 A
    • Inductance: 0,012 - 4,8 mH

    Power Noise Reduction - save up to 15% energy costs. A mains choker relieved the supply network by compensating the harmonics reactive power. The harmonics and commutation notches are reduced strongly. By using a mains choke the inverter electronics and DC-capacitors will be protected.


    Starting currents and current peaks are reduced up to 30%. Mains chokes helps to comply with international power quality standards IEEE 519 or EN 61000-3-2.



    • Rated voltage: U ≤ 3 x 500 V

    • Short circuit: Uk 2% (400VAC/50Hz, INenn)

    • Frequency:  50/60 Hz

    • According to: EN 60289 / EN 61558

    • Test voltage: L-L 2500 V, DC 1min; L-PE 2500 V, DC 1min

    • Insulation class: T40/F

    • Protection rating: IP00

    • Climatic categorie: DIN IEC 60068-1

    • Overload: 1,5 x INenn 1 min / h

    • Design: mounted on footprint



    Typical applications



    • Drive systems for motor drives:


      • Mechanical engineering

      • Elevators / escalators

      • Pipes

      • Conveyor technology

      • Ventilation and air conditioning

      • Robotics

      • Automation technology


    • Power supplies

    • Wind turbines




  • NTT MD 953

    Liquid-cooled three-phase mains choke 8% Uk

    NTT MD 953
    • Nominal Voltage: 400 V
    • Rated current: 200 - 1200 A
    • Inductance: 0,012 - 0,074 mH

    Watercooled chokes are available are available with ingress protection ratings IP00 to IP65. REO can utilise several methods of water cooling these components. This provides controlled conduction of heat losses, ensuring that the local environment is not heated. Water cooling ensures that component temperatures are greatly reduced, reducing component stress and increasing product life. REO technology provides excellent heat distribution, preventing the emergence of so-called hot spots.



    • Winding material : Aluminum

    • Insulation class: F

    • Cooling medium: Water/Glycol (70/30 %)

    • Max. coolant inlet temperature.: 50° C

    • Flow rate: min. 3,6 l/min.

    • Pressure drop: <0,5 bar


     


    Typical applications



    • AFE Drives



  • CNW 901

    Single-phase mains choke 4%

    CNW 901
    • Nominal Voltage: 250 V
    • Rated current: 2 - 100 A
    • Inductance: 0,29 - 14,5 mH

    Power Noise Reduction - save up to 20% energy costs. A mains choker relieved the supply network by compensating the harmonics reactive power. The harmonics and commutation notches are reduced much. By using a mains choke the inverter electronics and DC-capacitors will be protected.


    Starting currents and current peaks are reduced up to 60%. Mains chokes helps to comply with international power quality standards IEEE 519 or EN 61000-3-2.



    • Rated voltage: U ≤ 250 V 

    • Short circuit: Uk 4% (230VAC/50Hz, INenn)

    • Frequency: 50/60 Hz

    • According to: EN 60289 / EN 61558

    • Test voltage: L-PE 2500 V, DC 1min

    • Insulation class: T40/F

    • Protection rating: IP00

    • Climatic categorie: DIN IEC 60068-1

    • Overload: 1,5 x INenn 1 min / h

    • Design: mounted on foot print
       


    Typical Applications



    • Drive systems for motor drives:


      • Mechanical engineeringPumpen

      • Conveyor technology

      • Ventilation and air conditioning

      • Robotics


    • Automation technology


      • Power supplies




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    Energy saving with mains chokes and harmonic filters
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    Energy saving with mains chokes and harmonic filters

    Save up to 30% energy!
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    Operating instructions

    Operating instructions - REO - Mains chokes, DC chokes Motor chokes, sine-wave filters, du/dt chokes
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