Motor Starters and Accessories Reference Materials

Description: Of the various motor starter options, which is the best fit for your application? This article introduces the benefits and tradeoffs of the three main starter types: across-the-line starters, ...

Description: Although the contactor is probably one of the most common components in an industrial / motor control application, selecting one correctly requires detailed application information to be provided. ...

Description: Slow speed plays a big role for workers and machinery during startup. Alignment of moving machinery at a slow speed helps reduce the number of trials to see whether adjustments are correct without ...

Description: Use a soft start bypass, either internal or external, to allow an application to run continuously after the start in a closed contactor mode and to open once a stop or fault command has been provided. ...

Description: A common question when deciding between a soft starter or a drive is, which one to select? The purpose of this publication is to show similarities and differences between the soft starter and the ...

Description: The generation of harmonics by SCR based reduced voltage soft starters and the current harmonic spectrum generated is discussed. Some example harmonic spectrums are given that can be used for ...

Description: What happens when I lose vacuum? Answers such as "It has never happened before" are very unacceptable but one must consider that the chances of losing vacuum are extremely remote for the following ...

Description: Soft starters can provide significant benefits in the demanding marine environment, including: more efficient use of the limited electrical supply. integrated bypass contactors reduce the area ...

Description: Mossel Bay Water Utility in South Africa "They are so simple but they do so much for me!" exclaims Johnny Meerholz as he proudly displays the AuCom IMS2 soft starter he has just installed. Electrical ...

Description: The EMX3 has a standard braking feature whose operation consists of two distinct braking cycles. The initial-state braking cycle is used to bring the motor speed down to approximately 60% of the ...

Description: The EMX3 has jog forward and jog reverse as a standard feature. During jogging, motor torque is fixed and the jog speed is 11% of the motor full load speed in both directions. ...

Description: EMX3 motor overload protection is provided by a second order thermal model. This highly advanced protection method combines co-dependent thermal modeling of the motor windings and the motor body (the ...

Description: The following diagram illustrates how an EMX3 can be used on a typical Submersible Pump installation. ...

Description: The EMX3 can be used for installations requiring sequential starting of identical motors. Master control of the EMX3 and external contactors is achieved using a PLC. ...

Description: The principle of a slip-ring motor is that external resistance provides the necessary motor torque during acceleration to full speed. ...