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Three Phase, Iron Core Reactor with Air Gaps, Poly Gap (R) Core DesignComplete Unit Vacuum Overpressure Impregnated with Temperature Class H Resin and cured in an Oven Distortion

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The basic purpose of Contactor Switched Automatic Harmonic Filter Panel is centralized Reactive Power Compensation with Harmonic Mitigation. Automatic control is provided using Automatic Power Factor Control relays.

The switching of individual steps is through contactors or thyristors. With thyristor switching it is possible to have panels at higher voltages (upto 690 V), and with large size of single step (108-kVAR).

Based on the load variation pattern, the minimum and maximum size of steps can be determined to maintain optimum power factor. These will help partly mitigate the harmonics from the system.

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APFC relay Microprocessor controlled power factor controller with 1-phase measurement system Start menu for easy commissioning Automatic detection and correction of the phase of current and voltage connection Fully-automatic ck-value setting, self adapting, connection of different capacitor step sizes possible Automatic detection and usage of the optimum capacitor step.

Thyristor switching of capacitors for power factor improvement has many advantages over conventional contractor switching. Thyristor Switching is highly with minimum maintenance, especially suitable for fast variable loads, where contractor Switching systems fail to give desired results. The capacitors are switched at'' ZERO CURRENT CROSS OVER THRESHOLD''Automatic power factor correction is typical for large electrical systems with fluctuating load where it is common to connect number of capacitors to main power distribution station or substation. The capacitors are controlled by controller which continuously monitors the relative power demand. The relay connects or disconnects the capacitors to compensate for actual reactive power of the total load and reduce overall demand supply. Thyristors are used to switch the capacitors On and Off in the system.

Measurement of all voltages & currents, frequency.True RMS Measurements.Large Multi line LED bright red display .Accuracy class 1s(IEC 1036CBIP 88) .

ABB active filters can be applied to small, medium or large applications and are suitable for both industrial and commercial installations. They provide harmonic mitigation, load balancing and step-less reactive power control for inductive and capacitive loads. Selection from the large choice of ratings from several tens of Amps to several thousands of Amps enables the optimal solution for each system to be easily defined. The desired filter rating can be obtained by combining different master and slave units. Under normal conditions, the load of the filter will be distributed evenly over all the filter units operating in parallel.