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Schaffner ECOsine™ harmonic filters represent an economical solution to the challenge of load-applied harmonics mitigation in three-phase power systems. With a plug-and-play approach and more compact dimensions than comparable products, they can be quickly installed and easily commissioned. They increase the reliability and service life of electric installations, help utilize electric system capacity better, and are the key to meet Power Quality standards such as IEEE 519.
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Protection Filters are used on distribution networks which have a high THD (Total harmonic distortion), when the final target is to compensate the power factor at the fundamental frequency.
Its purpose is to avoid overloads due to harmonic currents in the capacitor, deflecting them to the network.
Protection filters are made with serial reactors and capacitors. The tuned frequency of each unit is adjusted between the fundamental and the lower harmonic present in the net, which usually is the 5 th order.
In this way, the filters present high inductive impedance for all the harmonic frequencies.
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Characteristics
Protection IP00
Standards = IEC60289 (UNE20-144)
Electric choke protection = class H
Overvoltage factor p=7%
Resonnance Frequency = 180 Hz
Inductance tolerance = 3%
Dielectric strength = 4 kV
Admissible overload = 1.2 In
Lineality inductance to 1.6*In
Max. ambient temperature = 40°C
Constructive characteristics
Termic class = B (130°C)
Wire copper class F (155°C) and H (180°C)
Magnetic plate V400
Protection thermostate 100°C
Impregnation class H (180°C) with high level solid elements varnish.
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The GEMTRAP® line of fixed, harmonically suppressed capacitors permits the installation of power factor correction capacitors on systems with nonlinear load components. The GEMTRAP® system can be tuned to any desired frequency but is normally tuned to the 4.7th harmonic.
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