Line reactors are a cost-effective way for the limitation of mains harmonics. The harmonics reduction capability is related to the reactor impedance. A higher impedance translates directly into lower harmonic currents, but of course also into a larger Component with a higher voltage drop and vice versa 0.5-7 % impedance reactors provide an excellent cost/benefit ratio and are particularly beneficiary in the most diverse motor drive applications.
The table below shows various reactor impedance values and their calculated effect in terms of harmonics reduction.
Specification
Maximum continuous operating voltage
230V to 909V or As per customer requirement
Operating frequency
50 to 60Hz
Rated currents
1 to 500Amp
Impedance
0.5% – 7% @ 415VAC, 50Hz & rated current
Typical harmonics reduction
See table on next page
Protection category
IP00
Overload capability
2 x rated current at switch on for 30 seconds
Typical Applications
Motor drives and various adjustable speed drive systems
such as Elevators
Robots
Machinery
Process automation equipment
Solar inverters
Wind converters
Traction converters