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GGJ Low Voltage Intelligent Reactive Power Compensation Cabinet

Overview

Since this device can effectively improve the power factor of the power load, reduce line voltage, 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 each time harmonic current content limit meet national standards and achieve harmonic If ordinary contactors are used to switch capacitor banks, large surge currents, slow compensation time, high maintenance costs and short service life will result. Therefore, we recommend that users give priority to using dynamic reactive power compensation devices in the following situations. For example, in low- voltage power grids such as substations of industrial and mining enterprises, production workshops and civil buildings, it is particularly suitable for power transmission and distribution systems with frequently changing loads and unstable reactive power.
This product complies with: GB/T15576-2008《Low voltage complete reactive power compensation equipment》IEC60439《Low-voltage complete switchgear and control equipment" and other standards.

    Model and Definitions

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    Product Features

    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 direction of the current (such as the forward direction) 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 reflected. In AC grid (50/60Hz),The above process is repeated 50 or 60 times per second, so an obvious solution is to temporarily store and release the inductive power energy (reactive power) directly through capacitors, thereby reducing the reactive power exchange of the power grid.
    ◇ The compensation cabinet has strong universal performance. It can be combined with any cabinets at  home and abroad, such as MNS, GCK, GGDwait;
    ◇ The capacitor compensation combination is diverse and flexible. YCompensation method △Compensation methodY+△ Combined compensation method;
    ◇ Diversity of communication methods. RS-232/485 Communication interface, wireless data transmission  module or GPRSModule implements long-distance communication;
    ◇ The control is accurate and safe. It implements voltage zero-crossing triggering, no surge current zero-crossing cutoff when it is put into operation, and no high voltage is generated when it is disconnected;
    ◇ Long service life, maintenance-free, service life of more than 100,000 hours.

    Environmental conditions

    ◇ Ambient temperature: -5℃ ~+40℃
    ◇ Environmental Relative Humidity: No more than 90% (20℃)
    ◇ Altitude: no more than 2000m
    ◇ The surrounding medium has no explosion hazard, no gas that is sufficient to damage and corrode metal, no conductive dust, the installation site is not prone to severe vibration, and there is no rain or snow erosion.

    Technical features

    ◇ Automatically compensate reactive power and improve power factor.
    ◇ Improve equipment efficiency and save investment.
    ◇ Reduce distribution line losses and transformer losses.
    ◇ Change voltage quality and improve power supply reliability.

    Device Technology Overview

    ◇ System voltage: AC450Vthe following
    ◇ Switching time: t≤20ms
    ◇ Input surge: <25In
    ◇ Rated Frequency: 50Hz±50%
    ◇ Sampling current: 0~5A
    ◇ Power consumption of this machine: ≤15W
    ◇ Sensitivity: 100mA

    Appearance and installation dimensions

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    Ordering Instructions

    1. Main circuit diagram;
    2. Compensation capacity and compensation method;
    3. Any inconsistency with the normal Application Conditions of the product must be stated in advance.

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