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Conduct Research Top

  • Lorentz forces shrink motor size
    the forces attract and repel numerous times in one shaft rotation. By contrast, motors also may be designed around a similar principle attributed to the Dutch physicist, Hendrik Lorentz. The Lorentz law states that when electric current flows through a wire in a magnetic field, a force develops around
  • How to confuse engineers: Resolvers, Encoders, Transducers
    an electric motor - with copper windings on the stator and a machined metal rotor. The inductive coupling between the transformer's windings varies according to angle. So, if we energize the resolver with an AC signal and measure the output from the transformer's windings, we get an AC electrical
  • AC Motors
    electric motor and consists of two basic electrical assemblies: the wound stator and the rotor assembly. The induction motor derives its name from currents flowing in the secondary member (rotor) that are induced by alternating currents flowing in the primary member (stator). The combined
  • Mechanical torque limiters still make sense
    overload protection. Electrical overload protection has been used since the days of the first industrial electric motors. Back then it simply protected motors against thermal overloads. Today, however, protection devices monitor many parameters - such as current, voltage, force, torque, rotation

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  • Drive solutions
    … Lastabstimmung............................83 of the load ........................................90 3.2 conditions of use of drives ...........................................91 3.2.1 network voltages and Netzformen..................................92 3.2.2 Umgebungsbedingungen................................................96 3.3 Motoren......................................................................................99 3.3.1 modes of action of rotating current motors ......................100 .
  • Electrical webs
    The locomotives with rotating current motors show appreciably lesser values because of the missing collector friction (against 2 N / kN).
  • Dubbel
    By rotating current motors , the rotation speed n can durch ¾ ndern of Pol few number p or is changed through variation of the frequency f of the feeding current according to n=f/p to become.
  • Dubbel
    By rotating current motors , the rotation speed n can durch ¾ ndern of Pol few number p or is changed through variation of the frequency f of the feeding current according to n=f/p to become.
  • Electrical machines and drives
    FIG of technique 2:12-18 Paustian R (1996) rotary current motors with integrated frequency converter for pump drives.
  • Manual mechanical engineering
    … of the same and alternating current circuits, the circuits in the electrical measurement are presented inter alia, the fundamental building elements of the power semiconductors treat and the structure and explains the mode of action of same, change and rotating current motors .
  • Oil hydraulic system
    The first variant uses the asynchronous rotating current motor controlled over frequency converter to come for drehzahlveränderbaren constant pump drive, s. section 1.5.4.
  • Mechatronische systems
    306 6.6 Dynamic model of a rotating current motor -centrifugal pump-assembly.
  • Manual mechanical engineering
    The rotation comes by different rotating current motors through that the rotor of which of the rotary field is carried, by the synchronous motor with the same rotation speed with that the rotary field circulates by cage, Stromverdrängungs- and slip ring rotor …
  • Roloff / Matek machine elements task collection
    For the driving of a particular machine by a rotating current motor DIN 42673--B3 112MÂ4Â1500 (construction form B3, building size 112M, power 4 kWs by about 1500 minÀ1 .
  • Electrical webs
    The locomotives with rotating current motors show appreciably lesser values because of the missing collector friction (against 2 N / kN).
  • Contribution to the doppeltverketteten scattering
    and the Dr. K. Simong given in the year 19o8 (ETZ S. 535 and ~ 64) and dere ~ coefficient ffir the rotating current motor YOn deft same authors in the ETZ 19o9, booklet IO.U. II and I9IO, booklet ' 51 …