DC reactor and Mains chokes relieves the supply network by compensating the harmonics reactive power. REO dv/dt chokes and filters attenuate due to their structure the voltage rise to acceptable values. Motor chokes reduce symmetric and asymmetric flow distortions , which are generated at the connecting line between the inverter and the motor due to the fast switching of the power semiconductors. Sinus filters guarantee sinusoidal output voltage for your frequency converter. The buck converter choke as an inductive passive component in the power supply and in power electronics is used to attenuate unwanted frequencies or for saving energy and storage.
REO has set itself the task of helping to ensure that trains are safer today and in the future. With special chokes for rail technology, we ensure that a safe operation is possible and EMC problems are eliminated at source. The use of a water cooling system allows optimal temperature characteristics to be utilised. In addition, the performance and lifetime of the component is improved. Air chokes are used when a particularly high linearity is required. By its relatively simple structure, they are not only compact, but also very stable.
A line reactor relieved the supply network by compensating the harmonics reactive power, The harmonics are greatly reduced.
The conditional by the operating principle of rectification very high current peak is attenuated by the inductance by more than 60 %.
REO harmonic filters are used for reducing the THD (Total Harmonic Distortion).
The harmonic currents are greatly suppressed, so that a THD is achieved by less than 5 % (as in UPS systems) .
Further reducing reactive power through a harmonic filter (e.g. REOWAVEpassive) and save up to 30% energy.
A DC reactor relieves the supply network by compensating the harmonics reactive power. Similar to a line choke, the DC-link choke acts as a passive component and helps to reduce harmonics and relieve the supply network. The DC choke attenuates also the peak load current of the DC link capacitors.
REO dv/dt chokes and filters attenuate due to their structure the voltage rise to acceptable values.
For short cable lengths between inverter and motor a dv/dt choke limits the increase speed to less than 1000 V/μs, which is sufficient for most motors and standards.
Reduction of symmetric and asymmetric flow distortions, which are generated at the connecting line between the inverter and the motor due to the fast switching of the power semiconductors.
These disturbances can affect the performance of the engine by loud noises, and in extreme cases, by overheating. Here, a conventional motor choke can help.
Sinusoidal output voltage for your frequency converter
Advantages of REO Sinus filter :
– Output voltage is sinusoidal
– Also suitable for very long motor cables
– Shielded motor cable is not required
– The efficiency of the overall system is increased
– Reduce motor noise and eddy current losses
The buck converter choke as an inductive passive component in the power supply and in power electronics is used to attenuate unwanted frequencies or for saving energy and storage.
Advantages of the buck converter inductor:
– Use in the kHz range possible
– Equal strength or higher power in smaller construction
– Significantly lower weight
Air chokes are used when a particularly high linearity is required. By its relatively simple structure, they are not only compact, but also very stable.
– No saturation effects
– High linearity L (i)
– Very good mechanical resistance
– No hysteresis
Inductive loads are usually specially designed for an application and with reference to the applicable norms. These standards detail the tests required but also the test setups and procedures. The inductances are specially adapted to the area of application so an optimal solution may be provided.
Inductive load units are used when power supply systems or other test specimens, such as switches, contacts or frequency converters have to be loaded with a standardized effective andreactive power.
With the help of liquid cooling losses are derived specifically about the cooling circuit and not in the environment.
By use of liquid cooling, the temperatures in the components can be reduced greatlyie less stress for the insulation materials and longer life.
REO has set itself the task of helping to ensure that trains are safer today and in the future. With special chokes for rail technology, we ensure that a safe operation is possible and EMC problems are eliminated at source.
Thus, voltage changes, short circuits and other phenomena that occur in dealing with electricity, does not endanger crew members and passengers. Compliance with international standards such as EN 45545 or EN 60310, the use of the latest technologies and decades of experience make REO a strong partner.
Air chokes are used when a particularly high linearity is required. By its relatively simple structure, they are not only compact, but also very stable.
– No saturation effects
– High linearity L (i)
– Very good mechanical resistance
– No hysteresis
Are you looking for an individual solution? No problem! Our REO experts will be happy to answer any questions you may have.
Greater effectiveness combined with reduced weight, the new edgewise winding series also boasts superior cooling thanks to its single layer structure and can be forced cooled with particular effectiveness.