Line Reactor Symbol

Line reactors are connected in series between the input source and the vfd controller.

Line reactor symbol. Dc link chokes introduction this application note is designed to provide an overview of why impedance on the line side of a drive is beneficial in variable frequency drives and compares the expected performance of line reactors and dc link chokes. That is if the impedance of a line reactor is 10 ohms at 60 hz then at the 5th harmonic 300 hz the impedance is 50 ohms. A line reactor also referred to as an electrical reactor or a choke is a variable frequency drive vfd accessory that consists of a coil of wire that forms a magnetic field as current flows through it. Line reactors are available in 1 250 horsepower with 208 240 480 and 600 voltage ratings at 60 hz.

Government office that has comprehensive responsibility for the safe and reliable operation of the united states navy s nuclear propulsion program. What is a line reactor. A line reactor is an optional component that can be added to a drive system to protect the vfd and other devices from power surges and transients. Line reactor a line reactor is an inductor wired between a power source and a load.

A single entity it has authority and reporting responsibilities within both the united states department of the navy chief of naval operations and the naval sea systems command navsea and. Naval reactors nr is an umbrella term for the u s. In addition to the current limiting function the device serves to filter out spikes of current 7 and may also reduce injection of harmonic currents into the power supply. A line reactor is essentially an inductor a coil of wire that forms a magnetic field as current flows through it.

Horizontal symbol vertical symbol description hrt1 vrt1 reactors general hrt1ic vrt1ic reactors iron cored hrt1l3 vrt1l3 inductor with magnetic core air gap hrt1l4 vrt1l4 inductor with magnetic core continuously variable. Harmonic compensated line reactors are used on either the input or output of an adjustable speed drive inverter. Ac line reactors vs. You might prefer to create your own symbols.

Refer to figure for proper wiring installation. The reactor should be mounted as close to the drive as possible. These reactors are very effective at reducing harmonics produced by inverters and drives and in most cases. L reactor inductance in henries h millihenries mh h x 10 3 microhenries µh h x 10 6.

Input line reactor 3 impedance line reactors. This magnetic field limits the rate of rising of the current thus reducing harmonics and protecting the drive from power system surges and transients. However you will find line reactors in the iec menus and their related library folders.