Unexpected Changes to Motor Protection: A Real-World Industrial Scenario

Careful consideration must be made when determining the proper specifications, applications, starting methods, and protection of a medium-voltage motor-load combination. These considerations include the type of load, the load duty cycle, the overall design of the facility's electrical power sys...

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Bibliographic Details
Published in:IEEE industry applications magazine 2012-11, Vol.18 (6), p.20-27
Main Author: Hoerauf, R.
Format: Magazinearticle
Language:English
Subjects:
Construction industry
Design engineering
Electric motors
Electric power generation
Induction motors
Industrial plants
Medium voltage
Motors
Power plants
Rotors
Specifications
Synchronous motors
Systems design
Voltage measurement
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Summary:Careful consideration must be made when determining the proper specifications, applications, starting methods, and protection of a medium-voltage motor-load combination. These considerations include the type of load, the load duty cycle, the overall design of the facility's electrical power system, and information regarding the utility's power system. This article discusses a case at a newly constructed midwestern industrial plant where these considerations were not properly followed. This, in turn, led to the plant's start-up electrical system design and protection changing in order to keep the plant start up on schedule.
ISSN:1077-2618
1558-0598
DOI:10.1109/MIAS.2012.2209465