3T - Introduction to Motor Starting Analysis

3T - Introduction to Motor Starting Analysis

SKU
eng_rus_009-pdh

3T - Introduction to Motor Starting Analysis

$50.00
In stock
SKU
eng_rus_009-pdh
Overview

The starting current of most AC motors is several times normal full load current. Both synchronous and induction motors can draw five to ten times full load current when starting them across the line. Motor-starting torque varies directly as the square of the applied voltage. If the terminal voltage drop is excessive, the motor may not have enough starting torque to accelerate up to running speed. Running motors may stall from excessive voltage drops, or under-voltage relays may operate. In addition, if the motors are started frequently, the voltage dip at the source may cause objectionable flicker in the lighting system.

Description:

 

The starting current of most AC motors is several times normal full load current. Both synchronous and induction motors can draw five to ten times full load current when starting them across the line. Motor-starting torque varies directly as the square of the applied voltage. If the terminal voltage drop is excessive, the motor may not have enough starting torque to accelerate up to running speed. Running motors may stall from excessive voltage drops, or under-voltage relays may operate. In addition, if the motors are started frequently, the voltage dip at the source may cause objectionable flicker in the lighting system.

By using motor-starting study techniques, these problems can be predicted before the installation of the motor. If a starting device is needed, its characteristics and ratings can be easily determined. A typical digital computer program will calculate speed, slip, electrical output torque, load current, and terminal voltage data at discrete time intervals from locked rotor to full load speed. Also, voltage at important locations throughout the system during start-up can be monitored. The study can help select the best method of starting, the proper motor design, or the required system design for minimizing the impact of motor starting on the entire system. 

The material in this course is presented with numerous diagrams, waveforms to help students understand how large motors are started in large industrial systems. 

More Information
Learning Objectives

In Introduction to Motor Starting Analysis course, you'll learn...

  • Basic theory behind Motor Starting Analyses
  • How starting and stopping large motors can affect industrial system performance
  • Motor starting techniques
  • Commercial software modelling techniques, simulation performance and interpretation of the results
CEU/PDH 0.3 CEU / 3 PDH
Language English
IACET_Logo

IACET ACCREDITED PROVIDER

Self Learning Solutions LLC is a company with more than 14 years of experience in this market. At Self Learning Solutions we are proud to have obtained the IACET accreditation for our organization, along with the approvals necessary to market our products throughout the United States. Self Learning Solutions is accredited by the International Association for Continuing Education and Training (IACET). Self Learning Solutions complies with the ANSI / IACET standard, which is recognized internationally as a standard of excellence in instructional practices. As a result of this accreditation, Self Learning Solutions is accredited to issue the CEU IACET.

This means that our clients can trust that our courses will be approved by state councils.

Check our IACET accreditation

PDH Authority System Requirements

To run our system effectively you should, as a minimum, use the system components listed on this page. If you do not, the system may still work but some functionality may be lost. Workplace IT environments' internal configurations can also restrict the functionality of our system. Access to content may be affected, as may the possibility of uploading files. File size limitations may also apply. Workplaces may also have older versions of software, and our system may not perform well with these.

Operating system

  • Recommended: Windows 7, 10, Mac OSX Sierra, iPad IOS10

Internet speed

  • Use a broadband connection (256 Kbit/sec or faster—this will ensure that you can view videos and online presentations) through USB wireless modem, ADSL, T1/T2, fibre optic or cable.

  • Dial-up access will be significantly slower, and we do not recommend it for using our system.

Internet browsers

    Compatible browsers include:

  • Google Chrome 32 bit version 50 or later (recommended for optimal compatibility, this has been thoroughly tested on Windows)

    Safari 10 or later (recommended for optimal compatibility, this has been thoroughly tested on Mac)

    Note that add-ons and toolbars can affect any browser's performance.

  • MS Internet Explorer is not recommended

Settings

    We recommend that the following be enabled:

  • Cookies

  • Pop-ups (in both Internet browser and security software)

  • Javascript

  • We recommend that you use the latest version of Adobe Flash Player.

Software

  • We recommend that you use the latest version of Adobe Acrobat Reader.

  • To view all the resources uploaded to Hazmat Authority, you will probably need to have Microsoft Office (Word, Excel, PowerPoint) or an equivalent (e.g. Open Office, Viewer) installed.

Security

    With all firewalls, ensure that you enable uploading of files.