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6.GGJ low voltage intelligent reactive power compensation cabinet.jpg

GGJ low voltage intelligent reactive power compensation cabinet

Since this device can effectively improve the power factor of the power load, reduce line loss, and increase the actual load capacity of the transformer, it has a significant energy-saving effect. At the same time, the use of specific reactors in the system can also effectively prevent harmonic amplification and effectively absorb most harmonic currents, so that the total harmonic voltage distortion rate limit and the harmonic current content limit of each order meet the national standards, achieving the purpose of harmonic control. If ordinary contactors are used to switch capacitor banks, large surge currents, slow compensation time, high maintenance costs and short service life will be brought about. Therefore, we recommend that users give priority to the use of dynamic reactive power compensation devices in the following occasions.

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    Product Details

    Environmental conditions for use

    ·Ambient temperature: -5℃~+40℃.

    ·Ambient temperature: no more than 90% (20°C).

    ·Altitude: not more than 2000m.

    ·The surrounding medium has no explosion hazard, no gas that can damage and corrode metal, no conductive dust, the installation site is not prone to severe vibration, and no rain or snow erosion.

     Features

    1.Strong universal performance. The compensation cabinet can be combined with any cabinets at home and abroad, such as MNS, GGK, GGD, etc.;

    2.The capacitor compensation combination is diverse and flexible. It has Y-type compensation, type compensation, and Y+ combination compensation;

    3.Diversity of communication methods. Equipped with RS-232/485 communication interface, wireless data transmission module or GPRS module for long-distance communication;

    4.Accurate and safe control. Implement voltage zero-crossing triggering, no surge current zero-crossing cutoff when switched on, and no high voltage generated when disconnected;

    5.Long service life, under maintenance-free condition, the service life is more than 100,000 hours.

     Power compensation principle

    Inductive loads in the power grid (generators, chokes, transformers, induction heaters, welding machines, etc.) will produce varying degrees of hysteresis, the so-called inductance. Inductive loads have the characteristic that the current scheme (such as forward) can be maintained for a period of time when the voltage changes direction. Once this phase difference between current and voltage exists, reactive power will be generated and fed back to the power grid. In an AC power grid (50/60Hz), the above process is repeated 50 or 60 times per second, so an obvious solution is to directly store and release these inductive power energy (reactive power) temporarily through capacitors, thereby reducing the reactive power exchange of the power grid.