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    High Voltage static dynamic reactive Power compensation and filter device

    Electrical Power Quality Integrated Optimization Device MEC

    NME series distribution network power quality integrated optimization device MEC(Multipower Power Control &;; Optimizer) products have been tested by the National Electrical Control and Distribution Equipment Quality Supervision and Inspection Center, which can quickly compensate reactive power, filter out harmonics, filter rate of more than 80 %, and have strong ability to suppress voltage fluctuations and flash. It can effectively compensate for voltage drops with a depth of 20 % and a width of 100 MS, and can effectively suppress three-phase imbalance, superior reliability and stability, and a response time of less than 3 MS, which can solve the defects of traditional shunt capacitor compensation. It can meet the requirement of power distribution quality improvement and energy saving application.
    Description

    Comparison table of MEC to traditional switch capacitor

    Product

    Multifunctional electricity controller & optimizer (MEC

    Mechanical switch capacitor (MSC

    Thyristor-switched capacitor (TSC

    Response speed

    ≤2ms

    300ms

    20ms

    Reactive power compensation ability

    Rated capacitive reactive power to rated inductive reactive power, 0.1kVar precision, and up to 1 power factor

    0 to rated capacitive reactive power, stair-like adjustment, transient and possible over-compensation and under-compensation, with the average power factor up to standard

    0 to rated capacitive reactive power, stair-like adjustment, transient and easy for over-compensation and under-compensation, with the average power factor up to standard

    Harmonic control ability

    Filter out harmonics for 2-13 times, filtering rate over 80%, no resonance oscillation risks

    No harmonic-filtering ability, large harmonics amplification and resonance risks

    No harmonic-filtering ability, large harmonics amplification and resonance risks

    Three-phase imbalance contro

    Strong, adjustable three-phase active power

    None

    None

    Voltage stabilization ability

    Strong, output capacity not change along with the drop of voltage, fast response to voltage leap

    Worse, the output capacity decreases by squares when the voltage decreases, resulting in system voltage fluctuation during switching

    Worse, the output capacity decreases by squares when the voltage decreases, resulting in system voltage fluctuation during switching

    Anti-electricity dazzling ability

    Possess the ability of preventing electricity dazzling from +10% to -50%

    None

    None

    Reliability

    Without capacitance wearing parts, and failure-free operating time of 100,000 hours

    With the switch-on rush current, over-voltage and resonance phenomena, the contactor is vulnerable to contact welding, and the capacitor is vulnerable to damages due to harmonics, with a high fault rate

    With the switch-on rush current, over-voltage and resonance phenomena, and the capacitor is vulnerable to damages due to harmonics, with a high fault rate

    Service life

    Design life over 20 years

    Capacitance attenuation, service life of 2-3 years

    Capacitance attenuation, service life of 2-3 years

    Maintenance cost

    Low, maintenance-free

    High, the capacitor should be replaced annually at later stage

    High, the capacitor should be replaced annually at later stage

    Impacts on the service life of transformer

    Power compensation, harmonic filtering, adjustment of three-phase balance, reducing the load rate and temperature rise of transformer, and increasing the service life of transformer by 50%

    Only compensating the reactive power, and impossible for eliminating the major damages on transformer caused by harmonics and three-phase imbalance, resulting in high load rate and short service life of transformer. The transformer may be burnt up due to resonance

    Only compensating the reactive power, and impossible for eliminating the major damages on transformer caused by harmonics and three-phase imbalance, resulting in high load rate and short service life of transformer. The transformer may be burnt up due to resonance

    Remote monitoring

    With the Bluetooth+GPRS monitoring function, available for networking remote management

    None

    None 

    ?Features

     

    ?Application fields

    1. 200V, 400V, 600V, and 750V, and unit capacity up to 10Mvar;
    2. Simultaneous compensation of reactive power, harmonic, three-phase imbalance, electricity-dazzling;
    3. Modular parallel design, the module failure imposes no impacts on the operation of other modules, available for live replacement what gives high reliability;
    4. Integrate functions of SVG and APF into one, low cost;
    5. Adopt the PWM interleaving technique, with low harmonic of itself;
    6. Small land occupation area, and the design life up to 20 years.
     
    1. Power system in need of comprehensive compensation against reactive power, harmonic and three-phase imbalance.
    2. Power system sensitive to the voltage fluctuation and flickering of power network, such as that related to precise textile.
    3. High voltage and ultra-high voltage flexible AC power transmission.
    4. Compensation to large industrial consumers such as steel metallurgical enterprises and petrochemical engineering enterprise.
    5. The remote and border areas with poor electricity availability, such as the rural areas, mountainous areas, and wind power plant.
    6. Special compensation to large loads such as the rolling mill, electric-arc furnace, electrified rail traction power station, etc.

     

    Send Inquiry

    Please feel free to contact with us at sales@cnshengyuan.cn, info@cnshengyuan.cn or filling up an enquiry form instructed at the bottom, You will get an effective response within 24 hours from Shengyuan sales representative.
    Thanks for your valued time with interest!

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