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Motor starting
1. Motor starting
Level 3 Diploma in Electrical Installations (Buildings and Structures)PowerPoint
presentation
Unit 302: Principles of electrical science
Motor starting
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Level 3 Diploma in Electrical Installations (Buildings and Structures)© 2018 City and Guilds of London Institute. All rights reserved.
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Level 3 Diploma in Electrical Installations (Buildings and Structures)Direct-on-line (DOL) starting
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Level 3 Diploma in Electrical Installations (Buildings and Structures)Star-delta starting
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Level 3 Diploma in Electrical Installations (Buildings and Structures)Rotor resistance starting
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Level 3 Diploma in Electrical Installations (Buildings and Structures)Soft start
Some of the benefits:
• three conductors to the motor
• variable starting torque
• no current peak
• no torque peaks
• one simple switching device
• optional: guided soft stop, protective functions, etc
• zero maintenance
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Level 3 Diploma in Electrical Installations (Buildings and Structures)Variable frequency drives (VFD)
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Level 3 Diploma in Electrical Installations (Buildings and Structures)Programmable Logic Controllers (PLC)
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Level 3 Diploma in Electrical Installations (Buildings and Structures)Any questions?
© 2018 City and Guilds of London Institute. All rights reserved.
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