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LR-LRB

LR-LRB
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LR / LRB Reactors Reactors for filtering for power converters (network side) Description The motor speed regulation equipment, frequency variators, UPS units, etc. generate alterations in the network, which affect other loads in the installation of the operation of the equipment. The LR / LRB reactors connected to the input on the network side of the equipment can attenuate voltage peaks and reduce the harmonic distortion generated by the power electronics. The LR / LRB Reactors for filtering can reduce the current harmonics in any converter from 40... 50 % to values around 20 %. In addition, they reduce the shortcircuit current and increase the safety of the converter's semi-conductors. When installed on the motor side, they can attenuate harmonic frequencies caused during switching operations. }} Low-powered reactors, LR type, are built with plates with low losses and are coiled with copper wire. The connection is achieved with the adequate terminals. }} the case of higher currents, LRB reacIn tors are used, with a magnetic plate nucleus and multiple steel cores, which offer excellent characteristics and a low loss ratio. Copper band coils (or aluminium band, on demand). The connections run through a plate. }} Both LR and LRB type reactors have a vacuum varnish sealing to increase the insulation, providing a greater mechanical resistance and reduce the level of noise. Features Features Voltage drop Uk % (LR 04: 400 V or Lr 02: 230 V) 4 % network at 50 Hz (4.8 % network at 60 Hz) Other values on demand In accordance with the table Other values on demand Nominal current In accordance with the table Other values on demand LR: copper wire LRB: copper band (or aluminium, on demand) Isolation voltage Maximum room temperature Internal isolation Class F (155 ºC) On demand: class H (180 ºC) Maximum overload Permanent Safety Protection thermostat Application The reactors of the LR / LRB series are prepared and can be used on the network and motor sides. They attenuate micro-drops and peaks during the initial connection and switching operations, and they reduce the rate of harmonics from the network curren

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