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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Manson, S. Floyd, H.L. Hughes, B. Kirby, R.D. |
| Copyright Year | 2013 |
| Description | Author affiliation: Schweitzer Eng. Labs., Inc., IEEE, Pullman, WA, USA (Manson, S.; Hughes, B.) || Schweitzer Eng. Labs., Inc., IEEE, Houston, TX, USA (Kirby, R.D.) || DuPont, IEEE, Wilmington, DE, USA (Floyd, H.L.) |
| Abstract | Low-voltage motor control centers (MCCs) are numerous and consume a large portion of maintenance and operator interaction in an industrial power distribution system. The extensive human interaction with these low-voltage (less than 1,000 V) circuits makes a low-voltage MCC a location of significant potential hazard. The large number of low-voltage MCC circuits results in significantly more human interface time with low-voltage MCC equipment than with medium-voltage MCCs and switchgear. Modern protection and control systems derived from medium-voltage (1,000 V to 38 kV) and high-voltage (38 to 765 kV) power systems have much to offer low-voltage MCC systems. Proactive maintenance indicators based on load characteristics, motor start characteristics, and thermal measurements are described. Time synchronization, modern Ethernet-based protocols, sequence of events records, oscillography (COMTRADE), monitoring and alarming for protection functions, and other previously standard features in medium- and high-voltage protective relays are available in modern low-voltage MCC protective relays. Increased safety in the form of advanced protection elements and arc-flash detection are now also available. This paper focuses on the philosophy of a comprehensive low-voltage MCC protection and control system. |
| Starting Page | 1 |
| Ending Page | 9 |
| File Size | 223728 |
| Page Count | 9 |
| File Format | |
| ISBN | 9781467351089 |
| ISSN | 00903507 |
| e-ISBN | 9781467351102 |
| DOI | 10.1109/PCICon.2013.6666027 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-09-23 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Arc discharges IEC standards Reliability Hazards Protocols Protective relaying multifunction microprocessor-based relays Reliability motor control center (MCC) safety arc-flash hazard protection automation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Fuel Technology Energy Engineering and Power Technology |
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