Frequency converters - Import export

Positive displacement blowers and single-stage screw compressors start up directly or following a star delta circuit if no gentle start or no frequency converter control are available. The unit is subjected to heavy mechanical load and requires high start-up current. For this reason, counterpressure must be reduced during the start-up phase; this is achieved by blowing off the increasing volume flow. The fully automatic medium-controlled STRATE relief valve EVA has been specially designed for this procedure. As well as not requiring any maintenance, the STRATE relief valve EVA is an extremely economical device for reducing load during start-up since there is no longer any need to use complex externally controlled valves or electronic start-up aids. Product features Fully automatic control Specialized material G-AISi9Cu3 - specific to the requirements With solenoid valve for different motor speeds With overpressure valve For higher pressures and temperatures

CEDS motor - kits offer you special advantages: Very high acceleration capacity Integrated motors for your application Light and compact design Efficient in terms of size High efficiency even at low speeds High speed stability, torque density and power density High positioning accuracy High speeds can be achieved High dynamics due to the low mass inertia Reinforced winding insulation for high dielectric strength Quiet running Low reactive power requirement Synchronous operation of several drives using a frequency converter Magnetically lockable by the control of the frequency converter Motor - kits can be designed as synchronous, asynchronous, servo or torque motor kits. These can be perfectly integrated into a complete system and save the customer a lot of space and unnecessary connections and wear parts like bearings.

CEDS servo motors offer you special advantages: Very high acceleration capacity Light and compact design Efficient in terms of size High efficiency even at low speeds High speed stability, torque density and power density High positioning accuracy High speeds can be achieved High dynamics due to the low mass inertia Reinforced winding insulation for high dielectric strength Quiet running Low reactive power requirement Synchronous operation of several drives using a frequency converter Magnetically lockable by the control of the frequency converter Both DC, synchronous and asynchronous motors can be designed as servomotors. Together with a servo amplifier, they then form the servo drive. It can be used to precisely regulate the torque, the speed or the position. For this purpose, the current position of the rotor is always measured with a rotary encoder, e.g. an incremental encoder.

CEDS asynchronous motors offer you special advantages: Low maintenance Long lifetime Compact designs Special designs Great overload capacity due to high overturning moment Large field weakening range with constant power Overload protection through temperature sensors in the winding or on the bearing Reinforced winding insulation for high dielectric strength Quiet design High speeds can be represented Controllable with position encoder and frequency converter Tension-free rotor and can therefore run in liquids, gases and in a vacuum Favorable manufacturing costs CEDS DURADRIVE asynchronous motors can be mechanically and electrically individually tailored to customer requirements. Requirements regarding the protection class up to IP 6K8K, extremely high requirements for surface protection or certifications according to ATEX, DNV GL or Bureau Veritas are not uncommon for us