What is harmonic filter reactor?

What is harmonic filter reactor?

Harmonic filter reactors, also known as harmonic trap reactors, are inductors used in the filtering of harmonics in a power system with capacitors to prevent specific line frequencies from flowing back to the power source. These harmonics are typically caused by non-linear devices in the power system.

Do line reactors reduce harmonics?

By inserting inductive reactance into the circuit, which is a high impedance to harmonic frequencies, line reactors reduce the amount of harmonics produced by a VFD system. For harmonic reduction purposes, you typically apply 5% impedance line reactors to the input of motor drives 20 hp and higher.

Is line reactor a filter?

Multiple Input (Line) Reactors In applications involving multiple drives in parallel, having more than one VFD connected to a common power line requires one line reactor per drive. Individual reactors will provide proper filtering and optimum surge protection for each VFD and reduce crosstalk between each unit.

What is the difference between a line reactor and a load reactor?

Load reactors are generally used with motors circuits (load side of a motor drive), while line reactors are used in power distribution (line side of a drive). The reason line/load inductors can limit current is based on a principle known as reactance.

What is filter reactor?

Filter reactors protect reactive power compensation equipment from overload caused by excessive harmonic levels in medium and low voltage distribution systems. They are also used in a variety of configurations of harmonic filters to remove unwanted harmonics from electric power systems.

What is tuned and detuned reactor?

Single-tuned filter and the detuned reactor is the type of harmonic filter that commonly used to mitigate harmonic distortion. The harmonic filter also has benefit to improve power factor and voltage profile on the system.

Why line reactors are used?

The addition of a line reactor, sometimes known as a choke or inductor, helps protect your equipment from input power disruptions that damage the drive. Reactors can prevent overvoltage trips, increase the reliability and life span of the VFD, improve total power factor, and reduce nuisance tripping.

What is a line reactor used for?

A line reactor is an inductor that absorbs high voltage microsecond transients that can damage the Variable Frequency Drives running your facility. Line reactors achieve this by slowing the rise time of the voltage spike to keep your VFDs safe.

What is the purpose of a line reactor?

How the reactor can be used for harmonic filtering purpose?

III. Why Harmonic Filter (Detuned) Reactor is used? The harmonic filter (Detuned) is to limit the flow of harmonic current from non-linear loads on the reactor to the fixed impedance loads (eg capacitor). An unwanted state will occur on the capacitor due to the harmonic current.