Expanding its extensive range of Simotics low-voltage Nema motors, Siemens adds in-line, vertical solid shaft (VSS) motors to its portfolio – the LP100 series – in the Nema Premium efficiency class. They have been specifically designed to address hight thrust pump applications and now have an extra high thrust capability allowing them to be teamed up with many pump types. The motors comply with the new Nema Premium efficiency class, the highest efficiency class required today for Nema low-voltage induction motors in the US. A range of special options is available for the series so that these motors comply with or exceed the most stringent industrial standards and can be used to address a wide range of applications.
Posts Tagged ‘motor’
Sulzer operates one of the most comprehensive maintenance, repair and technical support services for large capacity motors and generators worldwide, providing everything from testing to complete re-builds. Owners and operators of three-phase asynchronous motors manufactured by Franz Wölfer Elektromaschinenfabrik can now call Sulzer from anywhere in the world to assist with the repair and maintenance of their motors, safe in the knowledge that the service is fully supported by the manufacturer.
President of Rotating Equipment Services at Sulzer, Peter Alexander, ‘‘We have worked hard to establish a network of service centers at strategic locations around the globe where we can service any large motor or generator. These specialist manufacturing, engineering and test facilities are supported by highly trained installation and commissioning teams that can provide service onsite anywhere around the globe, including during active service out at sea. This agreement with Wölfer is a great opportunity to benefit all their customers.”
WEG has launched a permanent-magnet motor that fulfils this demanding requirement, making it one of the first to qualify for the IE5 Ultra Premium Motor designation. With losses roughly 20 % lower than Super Premium models, it is among the first Ultra Premium motors on the market that fulfil the present criteria for the potential IE5 energy efficiency class. This makes the W22 permanent-magnet motor one of the most efficient electric motors currently available world-wide.
Plant and maintenance engineers often seem to have an intuitive nose for trouble, so are able to predict pending problems with machinery and take pre-emptive action to prevent them. It is not the result of magical powers, rather of long experience with plant and machinery. Bill Bertram of motor maker Marathon Electric explains how different motor sounds can be interpretedÖ: “If you walk around a piece of plant that is running, you will hear it making a noise. If you listen carefully you will be able to pick out individual elements within the overall sound. For instance, you may be able to hear a fan whirring, a pump thumping and a conveyor rumbling.”
Caprari S.p.A. and Polmot Motor Makina A.S. announced that they have entered into a strategic Joint Venture agreement by means of which Caprari S.p.A. have acquired 50% of Polmot capital.
With the Sinamics G120P Cabinet, Siemens Drive Technologies Division is now able to provide an inverter cabinet unit especially adapted to pumps, fans, and compressors. The power spectrum of the existing Sinamics G120P series is thus extended to 200 kW. In line with the Integrated Drive Systems strategy, the drive is optimally adapted to operation with Simotics severe-duty and flexible-duty motors. For example, the inverter output currents have been adapted to the motor rated currents and the motors to the rated pulse frequencies of the inverters. Because the components interact as an integrated drive system, the voltage is optimally utilized and the noise level of the motor is also reduced by 4 dB. The efficiency of the overall system is 98 percent. The new inverter also has application-specific functions that enable economical operation of pumps.